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![Andreas Rheinhardt](/assets/img/avatar_default.png)
Commit a2b1dd0ce3
added support for
parsing annex B HEVC extradata to extract profile and level information.
Yet it only checks for there to be enough data left for the startcode
and the first byte of the NAL unit header and not for the full NAL unit
header; it simply presumes the second byte of the NAL unit header to be
present and skips it. Then the remaining size of the extradata is calculated
which ends up negative if the second byte of the NAL unit header is not
present. Yet when calling ff_nal_unit_extract_rbsp() it
will be converted to an uint32_t and end up as UINT32_MAX which
will cause mayhem.
This is solved by making sure that there is always enough remaining
extradata that could (pending 0x03 escapes) contain the data that we
are interested in.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
3145 lines
114 KiB
C
3145 lines
114 KiB
C
/*
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* Apple HTTP Live Streaming segmenter
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* Copyright (c) 2012, Luca Barbato
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* Copyright (c) 2017 Akamai Technologies, Inc.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include <float.h>
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#include <stdint.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if CONFIG_GCRYPT
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#include <gcrypt.h>
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#elif CONFIG_OPENSSL
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#include <openssl/rand.h>
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#endif
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#include "libavutil/avassert.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/avstring.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/random_seed.h"
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#include "libavutil/opt.h"
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#include "libavutil/log.h"
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#include "libavutil/time.h"
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#include "libavutil/time_internal.h"
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#include "avformat.h"
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#include "avio_internal.h"
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#include "avc.h"
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#if CONFIG_HTTP_PROTOCOL
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#include "http.h"
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#endif
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#include "hlsplaylist.h"
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#include "internal.h"
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#include "os_support.h"
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typedef enum {
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HLS_START_SEQUENCE_AS_START_NUMBER = 0,
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HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH = 1,
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HLS_START_SEQUENCE_AS_FORMATTED_DATETIME = 2, // YYYYMMDDhhmmss
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HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH = 3,
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HLS_START_SEQUENCE_LAST, // unused
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} StartSequenceSourceType;
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typedef enum {
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CODEC_ATTRIBUTE_WRITTEN = 0,
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CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN,
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} CodecAttributeStatus;
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#define KEYSIZE 16
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#define LINE_BUFFER_SIZE MAX_URL_SIZE
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#define HLS_MICROSECOND_UNIT 1000000
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#define BUFSIZE (16 * 1024)
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#define POSTFIX_PATTERN "_%d"
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typedef struct HLSSegment {
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char filename[MAX_URL_SIZE];
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char sub_filename[MAX_URL_SIZE];
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double duration; /* in seconds */
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int discont;
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int64_t pos;
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int64_t size;
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int64_t keyframe_pos;
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int64_t keyframe_size;
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unsigned var_stream_idx;
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char key_uri[LINE_BUFFER_SIZE + 1];
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char iv_string[KEYSIZE*2 + 1];
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struct HLSSegment *next;
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} HLSSegment;
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typedef enum HLSFlags {
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// Generate a single media file and use byte ranges in the playlist.
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HLS_SINGLE_FILE = (1 << 0),
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HLS_DELETE_SEGMENTS = (1 << 1),
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HLS_ROUND_DURATIONS = (1 << 2),
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HLS_DISCONT_START = (1 << 3),
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HLS_OMIT_ENDLIST = (1 << 4),
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HLS_SPLIT_BY_TIME = (1 << 5),
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HLS_APPEND_LIST = (1 << 6),
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HLS_PROGRAM_DATE_TIME = (1 << 7),
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HLS_SECOND_LEVEL_SEGMENT_INDEX = (1 << 8), // include segment index in segment filenames when use_localtime e.g.: %%03d
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HLS_SECOND_LEVEL_SEGMENT_DURATION = (1 << 9), // include segment duration (microsec) in segment filenames when use_localtime e.g.: %%09t
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HLS_SECOND_LEVEL_SEGMENT_SIZE = (1 << 10), // include segment size (bytes) in segment filenames when use_localtime e.g.: %%014s
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HLS_TEMP_FILE = (1 << 11),
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HLS_PERIODIC_REKEY = (1 << 12),
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HLS_INDEPENDENT_SEGMENTS = (1 << 13),
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HLS_I_FRAMES_ONLY = (1 << 14),
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} HLSFlags;
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typedef enum {
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SEGMENT_TYPE_MPEGTS,
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SEGMENT_TYPE_FMP4,
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} SegmentType;
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typedef struct VariantStream {
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unsigned var_stream_idx;
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unsigned number;
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int64_t sequence;
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ff_const59 AVOutputFormat *oformat;
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ff_const59 AVOutputFormat *vtt_oformat;
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AVIOContext *out;
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AVIOContext *out_single_file;
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int packets_written;
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int init_range_length;
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uint8_t *temp_buffer;
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uint8_t *init_buffer;
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AVFormatContext *avf;
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AVFormatContext *vtt_avf;
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int has_video;
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int has_subtitle;
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int new_start;
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int start_pts_from_audio;
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double dpp; // duration per packet
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int64_t start_pts;
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int64_t end_pts;
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int64_t video_lastpos;
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int64_t video_keyframe_pos;
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int64_t video_keyframe_size;
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double duration; // last segment duration computed so far, in seconds
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int64_t start_pos; // last segment starting position
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int64_t size; // last segment size
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int nb_entries;
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int discontinuity_set;
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int discontinuity;
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int reference_stream_index;
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HLSSegment *segments;
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HLSSegment *last_segment;
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HLSSegment *old_segments;
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char *basename_tmp;
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char *basename;
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char *vtt_basename;
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char *vtt_m3u8_name;
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char *m3u8_name;
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double initial_prog_date_time;
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char current_segment_final_filename_fmt[MAX_URL_SIZE]; // when renaming segments
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char *fmp4_init_filename;
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char *base_output_dirname;
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int encrypt_started;
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char key_file[LINE_BUFFER_SIZE + 1];
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char key_uri[LINE_BUFFER_SIZE + 1];
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char key_string[KEYSIZE*2 + 1];
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char iv_string[KEYSIZE*2 + 1];
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AVStream **streams;
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char codec_attr[128];
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CodecAttributeStatus attr_status;
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unsigned int nb_streams;
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int m3u8_created; /* status of media play-list creation */
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int is_default; /* default status of audio group */
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const char *language; /* audio lauguage name */
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const char *agroup; /* audio group name */
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const char *sgroup; /* subtitle group name */
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const char *ccgroup; /* closed caption group name */
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const char *varname; /* variant name */
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} VariantStream;
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typedef struct ClosedCaptionsStream {
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const char *ccgroup; /* closed caption group name */
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const char *instreamid; /* closed captions INSTREAM-ID */
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const char *language; /* closed captions langauge */
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} ClosedCaptionsStream;
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typedef struct HLSContext {
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const AVClass *class; // Class for private options.
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int64_t start_sequence;
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uint32_t start_sequence_source_type; // enum StartSequenceSourceType
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float time; // Set by a private option.
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float init_time; // Set by a private option.
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int max_nb_segments; // Set by a private option.
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int hls_delete_threshold; // Set by a private option.
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#if FF_API_HLS_WRAP
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int wrap; // Set by a private option.
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#endif
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uint32_t flags; // enum HLSFlags
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uint32_t pl_type; // enum PlaylistType
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char *segment_filename;
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char *fmp4_init_filename;
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int segment_type;
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int resend_init_file; ///< resend init file into disk after refresh m3u8
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int use_localtime; ///< flag to expand filename with localtime
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int use_localtime_mkdir;///< flag to mkdir dirname in timebased filename
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int allowcache;
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int64_t recording_time;
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int64_t max_seg_size; // every segment file max size
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char *baseurl;
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char *vtt_format_options_str;
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char *subtitle_filename;
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AVDictionary *format_options;
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int encrypt;
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char *key;
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char *key_url;
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char *iv;
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char *key_basename;
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int encrypt_started;
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char *key_info_file;
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char key_file[LINE_BUFFER_SIZE + 1];
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char key_uri[LINE_BUFFER_SIZE + 1];
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char key_string[KEYSIZE*2 + 1];
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char iv_string[KEYSIZE*2 + 1];
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AVDictionary *vtt_format_options;
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char *method;
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char *user_agent;
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VariantStream *var_streams;
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unsigned int nb_varstreams;
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ClosedCaptionsStream *cc_streams;
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unsigned int nb_ccstreams;
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int master_m3u8_created; /* status of master play-list creation */
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char *master_m3u8_url; /* URL of the master m3u8 file */
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int version; /* HLS version */
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char *var_stream_map; /* user specified variant stream map string */
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char *cc_stream_map; /* user specified closed caption streams map string */
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char *master_pl_name;
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unsigned int master_publish_rate;
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int http_persistent;
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AVIOContext *m3u8_out;
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AVIOContext *sub_m3u8_out;
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int64_t timeout;
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int ignore_io_errors;
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char *headers;
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int has_default_key; /* has DEFAULT field of var_stream_map */
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int has_video_m3u8; /* has video stream m3u8 list */
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} HLSContext;
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static int hlsenc_io_open(AVFormatContext *s, AVIOContext **pb, char *filename,
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AVDictionary **options)
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{
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HLSContext *hls = s->priv_data;
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int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
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int err = AVERROR_MUXER_NOT_FOUND;
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if (!*pb || !http_base_proto || !hls->http_persistent) {
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err = s->io_open(s, pb, filename, AVIO_FLAG_WRITE, options);
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#if CONFIG_HTTP_PROTOCOL
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} else {
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URLContext *http_url_context = ffio_geturlcontext(*pb);
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av_assert0(http_url_context);
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err = ff_http_do_new_request(http_url_context, filename);
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if (err < 0)
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ff_format_io_close(s, pb);
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#endif
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}
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return err;
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}
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static int hlsenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filename)
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{
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HLSContext *hls = s->priv_data;
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int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
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int ret = 0;
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if (!*pb)
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return ret;
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if (!http_base_proto || !hls->http_persistent || hls->key_info_file || hls->encrypt) {
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ff_format_io_close(s, pb);
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#if CONFIG_HTTP_PROTOCOL
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} else {
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URLContext *http_url_context = ffio_geturlcontext(*pb);
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av_assert0(http_url_context);
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avio_flush(*pb);
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ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE);
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ret = ff_http_get_shutdown_status(http_url_context);
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#endif
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}
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return ret;
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}
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static void set_http_options(AVFormatContext *s, AVDictionary **options, HLSContext *c)
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{
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int http_base_proto = ff_is_http_proto(s->url);
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if (c->method) {
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av_dict_set(options, "method", c->method, 0);
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} else if (http_base_proto) {
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av_dict_set(options, "method", "PUT", 0);
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}
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if (c->user_agent)
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av_dict_set(options, "user_agent", c->user_agent, 0);
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if (c->http_persistent)
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av_dict_set_int(options, "multiple_requests", 1, 0);
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if (c->timeout >= 0)
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av_dict_set_int(options, "timeout", c->timeout, 0);
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if (c->headers)
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av_dict_set(options, "headers", c->headers, 0);
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}
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static void write_codec_attr(AVStream *st, VariantStream *vs)
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{
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int codec_strlen = strlen(vs->codec_attr);
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char attr[32];
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if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
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return;
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if (vs->attr_status == CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN)
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return;
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if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
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uint8_t *data = st->codecpar->extradata;
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if (data && (data[0] | data[1] | data[2]) == 0 && data[3] == 1 && (data[4] & 0x1F) == 7) {
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snprintf(attr, sizeof(attr),
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"avc1.%02x%02x%02x", data[5], data[6], data[7]);
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} else {
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goto fail;
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}
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} else if (st->codecpar->codec_id == AV_CODEC_ID_HEVC) {
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uint8_t *data = st->codecpar->extradata;
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int profile = FF_PROFILE_UNKNOWN;
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int level = FF_LEVEL_UNKNOWN;
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if (st->codecpar->profile != FF_PROFILE_UNKNOWN)
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profile = st->codecpar->profile;
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if (st->codecpar->level != FF_LEVEL_UNKNOWN)
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level = st->codecpar->level;
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/* check the boundary of data which from current position is small than extradata_size */
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while (data && (data - st->codecpar->extradata + 19) < st->codecpar->extradata_size) {
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/* get HEVC SPS NAL and seek to profile_tier_level */
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if (!(data[0] | data[1] | data[2]) && data[3] == 1 && ((data[4] & 0x42) == 0x42)) {
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int remain_size = 0;
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int rbsp_size = 0;
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/* skip start code + nalu header */
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data += 6;
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/* process by reference General NAL unit syntax */
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remain_size = st->codecpar->extradata_size - (data - st->codecpar->extradata);
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uint8_t *rbsp_buf = ff_nal_unit_extract_rbsp(data, remain_size, &rbsp_size, 0);
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if (!rbsp_buf)
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return;
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if (rbsp_size < 13) {
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av_freep(&rbsp_buf);
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break;
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}
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/* skip sps_video_parameter_set_id u(4),
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* sps_max_sub_layers_minus1 u(3),
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* and sps_temporal_id_nesting_flag u(1) */
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profile = rbsp_buf[1] & 0x1f;
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/* skip 8 + 8 + 32 + 4 + 43 + 1 bit */
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level = rbsp_buf[12];
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av_freep(&rbsp_buf);
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break;
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}
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data++;
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}
|
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if (st->codecpar->codec_tag == MKTAG('h','v','c','1') &&
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profile != FF_PROFILE_UNKNOWN &&
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level != FF_LEVEL_UNKNOWN) {
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snprintf(attr, sizeof(attr), "%s.%d.4.L%d.B01", av_fourcc2str(st->codecpar->codec_tag), profile, level);
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}
|
|
} else if (st->codecpar->codec_id == AV_CODEC_ID_MP2) {
|
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snprintf(attr, sizeof(attr), "mp4a.40.33");
|
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} else if (st->codecpar->codec_id == AV_CODEC_ID_MP3) {
|
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snprintf(attr, sizeof(attr), "mp4a.40.34");
|
|
} else if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
|
|
/* TODO : For HE-AAC, HE-AACv2, the last digit needs to be set to 5 and 29 respectively */
|
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snprintf(attr, sizeof(attr), "mp4a.40.2");
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} else if (st->codecpar->codec_id == AV_CODEC_ID_AC3) {
|
|
snprintf(attr, sizeof(attr), "ac-3");
|
|
} else if (st->codecpar->codec_id == AV_CODEC_ID_EAC3) {
|
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snprintf(attr, sizeof(attr), "ec-3");
|
|
} else {
|
|
goto fail;
|
|
}
|
|
// Don't write the same attribute multiple times
|
|
if (!av_stristr(vs->codec_attr, attr)) {
|
|
snprintf(vs->codec_attr + codec_strlen,
|
|
sizeof(vs->codec_attr) - codec_strlen,
|
|
"%s%s", codec_strlen ? "," : "", attr);
|
|
}
|
|
return;
|
|
|
|
fail:
|
|
vs->codec_attr[0] = '\0';
|
|
vs->attr_status = CODEC_ATTRIBUTE_WILL_NOT_BE_WRITTEN;
|
|
return;
|
|
}
|
|
|
|
static int replace_str_data_in_filename(char **s, const char *filename, char placeholder, const char *datastring)
|
|
{
|
|
const char *p;
|
|
char c;
|
|
int addchar_count;
|
|
int found_count = 0;
|
|
AVBPrint buf;
|
|
int ret;
|
|
|
|
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
|
|
|
|
p = filename;
|
|
for (;;) {
|
|
c = *p;
|
|
if (c == '\0')
|
|
break;
|
|
if (c == '%' && *(p+1) == '%') // %%
|
|
addchar_count = 2;
|
|
else if (c == '%' && *(p+1) == placeholder) {
|
|
av_bprintf(&buf, "%s", datastring);
|
|
p += 2;
|
|
addchar_count = 0;
|
|
found_count ++;
|
|
} else
|
|
addchar_count = 1;
|
|
|
|
if (addchar_count > 0) {
|
|
av_bprint_append_data(&buf, p, addchar_count);
|
|
p += addchar_count;
|
|
}
|
|
}
|
|
if (!av_bprint_is_complete(&buf)) {
|
|
av_bprint_finalize(&buf, NULL);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if ((ret = av_bprint_finalize(&buf, s)) < 0)
|
|
return ret;
|
|
return found_count;
|
|
}
|
|
|
|
static int replace_int_data_in_filename(char **s, const char *filename, char placeholder, int64_t number)
|
|
{
|
|
const char *p;
|
|
char c;
|
|
int nd, addchar_count;
|
|
int found_count = 0;
|
|
AVBPrint buf;
|
|
int ret;
|
|
|
|
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
|
|
|
|
p = filename;
|
|
for (;;) {
|
|
c = *p;
|
|
if (c == '\0')
|
|
break;
|
|
if (c == '%' && *(p+1) == '%') // %%
|
|
addchar_count = 2;
|
|
else if (c == '%' && (av_isdigit(*(p+1)) || *(p+1) == placeholder)) {
|
|
nd = 0;
|
|
addchar_count = 1;
|
|
while (av_isdigit(*(p + addchar_count))) {
|
|
nd = nd * 10 + *(p + addchar_count) - '0';
|
|
addchar_count++;
|
|
}
|
|
|
|
if (*(p + addchar_count) == placeholder) {
|
|
av_bprintf(&buf, "%0*"PRId64, (number < 0) ? nd : nd++, number);
|
|
p += (addchar_count + 1);
|
|
addchar_count = 0;
|
|
found_count++;
|
|
}
|
|
|
|
} else
|
|
addchar_count = 1;
|
|
|
|
av_bprint_append_data(&buf, p, addchar_count);
|
|
p += addchar_count;
|
|
}
|
|
if (!av_bprint_is_complete(&buf)) {
|
|
av_bprint_finalize(&buf, NULL);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if ((ret = av_bprint_finalize(&buf, s)) < 0)
|
|
return ret;
|
|
return found_count;
|
|
}
|
|
|
|
static void write_styp(AVIOContext *pb)
|
|
{
|
|
avio_wb32(pb, 24);
|
|
ffio_wfourcc(pb, "styp");
|
|
ffio_wfourcc(pb, "msdh");
|
|
avio_wb32(pb, 0); /* minor */
|
|
ffio_wfourcc(pb, "msdh");
|
|
ffio_wfourcc(pb, "msix");
|
|
}
|
|
|
|
static int flush_dynbuf(VariantStream *vs, int *range_length)
|
|
{
|
|
AVFormatContext *ctx = vs->avf;
|
|
|
|
if (!ctx->pb) {
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
// flush
|
|
av_write_frame(ctx, NULL);
|
|
|
|
// write out to file
|
|
*range_length = avio_close_dyn_buf(ctx->pb, &vs->temp_buffer);
|
|
ctx->pb = NULL;
|
|
avio_write(vs->out, vs->temp_buffer, *range_length);
|
|
avio_flush(vs->out);
|
|
|
|
// re-open buffer
|
|
return avio_open_dyn_buf(&ctx->pb);
|
|
}
|
|
|
|
static void reflush_dynbuf(VariantStream *vs, int *range_length)
|
|
{
|
|
// re-open buffer
|
|
avio_write(vs->out, vs->temp_buffer, *range_length);
|
|
}
|
|
|
|
#if HAVE_DOS_PATHS
|
|
#define SEPARATOR '\\'
|
|
#else
|
|
#define SEPARATOR '/'
|
|
#endif
|
|
|
|
static int hls_delete_file(HLSContext *hls, AVFormatContext *avf,
|
|
const char *path, const char *proto)
|
|
{
|
|
if (hls->method || (proto && !av_strcasecmp(proto, "http"))) {
|
|
AVDictionary *opt = NULL;
|
|
AVIOContext *out = NULL;
|
|
int ret;
|
|
av_dict_set(&opt, "method", "DELETE", 0);
|
|
ret = avf->io_open(avf, &out, path, AVIO_FLAG_WRITE, &opt);
|
|
av_dict_free(&opt);
|
|
if (ret < 0)
|
|
return hls->ignore_io_errors ? 1 : ret;
|
|
ff_format_io_close(avf, &out);
|
|
} else if (unlink(path) < 0) {
|
|
av_log(hls, AV_LOG_ERROR, "failed to delete old segment %s: %s\n",
|
|
path, strerror(errno));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int hls_delete_old_segments(AVFormatContext *s, HLSContext *hls,
|
|
VariantStream *vs)
|
|
{
|
|
|
|
HLSSegment *segment, *previous_segment = NULL;
|
|
float playlist_duration = 0.0f;
|
|
int ret = 0;
|
|
int segment_cnt = 0;
|
|
AVBPrint path;
|
|
const char *dirname = NULL;
|
|
char *dirname_r = NULL;
|
|
char *dirname_repl = NULL;
|
|
const char *vtt_dirname = NULL;
|
|
char *vtt_dirname_r = NULL;
|
|
const char *proto = NULL;
|
|
|
|
av_bprint_init(&path, 0, AV_BPRINT_SIZE_UNLIMITED);
|
|
|
|
segment = vs->segments;
|
|
while (segment) {
|
|
playlist_duration += segment->duration;
|
|
segment = segment->next;
|
|
}
|
|
|
|
segment = vs->old_segments;
|
|
segment_cnt = 0;
|
|
while (segment) {
|
|
playlist_duration -= segment->duration;
|
|
previous_segment = segment;
|
|
segment = previous_segment->next;
|
|
segment_cnt++;
|
|
if (playlist_duration <= -previous_segment->duration) {
|
|
previous_segment->next = NULL;
|
|
break;
|
|
}
|
|
if (segment_cnt >= hls->hls_delete_threshold) {
|
|
previous_segment->next = NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (segment && !hls->use_localtime_mkdir) {
|
|
dirname_r = hls->segment_filename ? av_strdup(hls->segment_filename): av_strdup(vs->avf->url);
|
|
dirname = av_dirname(dirname_r);
|
|
}
|
|
|
|
/* if %v is present in the file's directory
|
|
* all segment belongs to the same variant, so do it only once before the loop*/
|
|
if (dirname && av_stristr(dirname, "%v")) {
|
|
if (!vs->varname) {
|
|
if (replace_int_data_in_filename(&dirname_repl, dirname, 'v', segment->var_stream_idx) < 1) {
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
} else {
|
|
if (replace_str_data_in_filename(&dirname_repl, dirname, 'v', vs->varname) < 1) {
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
dirname = dirname_repl;
|
|
}
|
|
|
|
while (segment) {
|
|
av_log(hls, AV_LOG_DEBUG, "deleting old segment %s\n",
|
|
segment->filename);
|
|
if (!hls->use_localtime_mkdir) // segment->filename contains basename only
|
|
av_bprintf(&path, "%s%c", dirname, SEPARATOR);
|
|
av_bprintf(&path, "%s", segment->filename);
|
|
|
|
if (!av_bprint_is_complete(&path)) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
proto = avio_find_protocol_name(s->url);
|
|
if (ret = hls_delete_file(hls, vs->avf, path.str, proto))
|
|
goto fail;
|
|
|
|
if ((segment->sub_filename[0] != '\0')) {
|
|
vtt_dirname_r = av_strdup(vs->vtt_avf->url);
|
|
vtt_dirname = av_dirname(vtt_dirname_r);
|
|
|
|
av_bprint_clear(&path);
|
|
av_bprintf(&path, "%s%c%s", vtt_dirname, SEPARATOR,
|
|
segment->sub_filename);
|
|
av_freep(&vtt_dirname_r);
|
|
|
|
if (!av_bprint_is_complete(&path)) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
if (ret = hls_delete_file(hls, vs->vtt_avf, path.str, proto))
|
|
goto fail;
|
|
}
|
|
av_bprint_clear(&path);
|
|
previous_segment = segment;
|
|
segment = previous_segment->next;
|
|
av_freep(&previous_segment);
|
|
}
|
|
|
|
fail:
|
|
av_bprint_finalize(&path, NULL);
|
|
av_freep(&dirname_r);
|
|
av_freep(&dirname_repl);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int randomize(uint8_t *buf, int len)
|
|
{
|
|
#if CONFIG_GCRYPT
|
|
gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM);
|
|
return 0;
|
|
#elif CONFIG_OPENSSL
|
|
if (RAND_bytes(buf, len))
|
|
return 0;
|
|
#else
|
|
return AVERROR(ENOSYS);
|
|
#endif
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
static int do_encrypt(AVFormatContext *s, VariantStream *vs)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int ret;
|
|
int len;
|
|
AVIOContext *pb;
|
|
uint8_t key[KEYSIZE];
|
|
char * key_basename_source = (hls->master_m3u8_url) ? hls->master_m3u8_url : s->url;
|
|
|
|
len = strlen(key_basename_source) + 4 + 1;
|
|
hls->key_basename = av_mallocz(len);
|
|
if (!hls->key_basename)
|
|
return AVERROR(ENOMEM);
|
|
|
|
av_strlcpy(hls->key_basename, key_basename_source, len);
|
|
av_strlcat(hls->key_basename, ".key", len);
|
|
|
|
if (hls->key_url) {
|
|
av_strlcpy(hls->key_file, hls->key_url, sizeof(hls->key_file));
|
|
av_strlcpy(hls->key_uri, hls->key_url, sizeof(hls->key_uri));
|
|
} else {
|
|
av_strlcpy(hls->key_file, hls->key_basename, sizeof(hls->key_file));
|
|
av_strlcpy(hls->key_uri, hls->key_basename, sizeof(hls->key_uri));
|
|
}
|
|
|
|
if (!*hls->iv_string) {
|
|
uint8_t iv[16] = { 0 };
|
|
char buf[33];
|
|
|
|
if (!hls->iv) {
|
|
AV_WB64(iv + 8, vs->sequence);
|
|
} else {
|
|
memcpy(iv, hls->iv, sizeof(iv));
|
|
}
|
|
ff_data_to_hex(buf, iv, sizeof(iv), 0);
|
|
buf[32] = '\0';
|
|
memcpy(hls->iv_string, buf, sizeof(hls->iv_string));
|
|
}
|
|
|
|
if (!*hls->key_uri) {
|
|
av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (!*hls->key_file) {
|
|
av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (!*hls->key_string) {
|
|
AVDictionary *options = NULL;
|
|
if (!hls->key) {
|
|
if ((ret = randomize(key, sizeof(key))) < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Cannot generate a strong random key\n");
|
|
return ret;
|
|
}
|
|
} else {
|
|
memcpy(key, hls->key, sizeof(key));
|
|
}
|
|
|
|
ff_data_to_hex(hls->key_string, key, sizeof(key), 0);
|
|
set_http_options(s, &options, hls);
|
|
ret = s->io_open(s, &pb, hls->key_file, AVIO_FLAG_WRITE, &options);
|
|
av_dict_free(&options);
|
|
if (ret < 0)
|
|
return ret;
|
|
avio_seek(pb, 0, SEEK_CUR);
|
|
avio_write(pb, key, KEYSIZE);
|
|
avio_close(pb);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int hls_encryption_start(AVFormatContext *s, VariantStream *vs)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int ret;
|
|
AVIOContext *pb;
|
|
uint8_t key[KEYSIZE];
|
|
AVDictionary *options = NULL;
|
|
|
|
set_http_options(s, &options, hls);
|
|
ret = s->io_open(s, &pb, hls->key_info_file, AVIO_FLAG_READ, &options);
|
|
av_dict_free(&options);
|
|
if (ret < 0) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"error opening key info file %s\n", hls->key_info_file);
|
|
return ret;
|
|
}
|
|
|
|
ff_get_line(pb, vs->key_uri, sizeof(vs->key_uri));
|
|
vs->key_uri[strcspn(vs->key_uri, "\r\n")] = '\0';
|
|
|
|
ff_get_line(pb, vs->key_file, sizeof(vs->key_file));
|
|
vs->key_file[strcspn(vs->key_file, "\r\n")] = '\0';
|
|
|
|
ff_get_line(pb, vs->iv_string, sizeof(vs->iv_string));
|
|
vs->iv_string[strcspn(vs->iv_string, "\r\n")] = '\0';
|
|
|
|
ff_format_io_close(s, &pb);
|
|
|
|
if (!*vs->key_uri) {
|
|
av_log(hls, AV_LOG_ERROR, "no key URI specified in key info file\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (!*vs->key_file) {
|
|
av_log(hls, AV_LOG_ERROR, "no key file specified in key info file\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
set_http_options(s, &options, hls);
|
|
ret = s->io_open(s, &pb, vs->key_file, AVIO_FLAG_READ, &options);
|
|
av_dict_free(&options);
|
|
if (ret < 0) {
|
|
av_log(hls, AV_LOG_ERROR, "error opening key file %s\n", vs->key_file);
|
|
return ret;
|
|
}
|
|
|
|
ret = avio_read(pb, key, sizeof(key));
|
|
ff_format_io_close(s, &pb);
|
|
if (ret != sizeof(key)) {
|
|
av_log(hls, AV_LOG_ERROR, "error reading key file %s\n", vs->key_file);
|
|
if (ret >= 0 || ret == AVERROR_EOF)
|
|
ret = AVERROR(EINVAL);
|
|
return ret;
|
|
}
|
|
ff_data_to_hex(vs->key_string, key, sizeof(key), 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hls_mux_init(AVFormatContext *s, VariantStream *vs)
|
|
{
|
|
AVDictionary *options = NULL;
|
|
HLSContext *hls = s->priv_data;
|
|
AVFormatContext *oc;
|
|
AVFormatContext *vtt_oc = NULL;
|
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
int remaining_options;
|
|
int i, ret;
|
|
|
|
ret = avformat_alloc_output_context2(&vs->avf, vs->oformat, NULL, NULL);
|
|
if (ret < 0)
|
|
return ret;
|
|
oc = vs->avf;
|
|
|
|
oc->url = av_strdup("");
|
|
if (!oc->url)
|
|
return AVERROR(ENOMEM);
|
|
|
|
oc->interrupt_callback = s->interrupt_callback;
|
|
oc->max_delay = s->max_delay;
|
|
oc->opaque = s->opaque;
|
|
oc->io_open = s->io_open;
|
|
oc->io_close = s->io_close;
|
|
oc->strict_std_compliance = s->strict_std_compliance;
|
|
av_dict_copy(&oc->metadata, s->metadata, 0);
|
|
|
|
if (vs->vtt_oformat) {
|
|
ret = avformat_alloc_output_context2(&vs->vtt_avf, vs->vtt_oformat, NULL, NULL);
|
|
if (ret < 0)
|
|
return ret;
|
|
vtt_oc = vs->vtt_avf;
|
|
av_dict_copy(&vtt_oc->metadata, s->metadata, 0);
|
|
}
|
|
|
|
for (i = 0; i < vs->nb_streams; i++) {
|
|
AVStream *st;
|
|
AVFormatContext *loc;
|
|
if (vs->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
|
|
loc = vtt_oc;
|
|
else
|
|
loc = oc;
|
|
|
|
if (!(st = avformat_new_stream(loc, NULL)))
|
|
return AVERROR(ENOMEM);
|
|
avcodec_parameters_copy(st->codecpar, vs->streams[i]->codecpar);
|
|
if (!oc->oformat->codec_tag ||
|
|
av_codec_get_id (oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_tag) == st->codecpar->codec_id ||
|
|
av_codec_get_tag(oc->oformat->codec_tag, vs->streams[i]->codecpar->codec_id) <= 0) {
|
|
st->codecpar->codec_tag = vs->streams[i]->codecpar->codec_tag;
|
|
} else {
|
|
st->codecpar->codec_tag = 0;
|
|
}
|
|
|
|
st->sample_aspect_ratio = vs->streams[i]->sample_aspect_ratio;
|
|
st->time_base = vs->streams[i]->time_base;
|
|
av_dict_copy(&st->metadata, vs->streams[i]->metadata, 0);
|
|
}
|
|
|
|
vs->start_pos = 0;
|
|
vs->new_start = 1;
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4 && hls->max_seg_size > 0) {
|
|
if (hls->http_persistent > 0) {
|
|
//TODO: Support fragment fmp4 for http persistent in HLS muxer.
|
|
av_log(s, AV_LOG_WARNING, "http persistent mode is currently unsupported for fragment mp4 in the HLS muxer.\n");
|
|
}
|
|
if (hls->max_seg_size > 0) {
|
|
av_log(s, AV_LOG_WARNING, "Multi-file byterange mode is currently unsupported in the HLS muxer.\n");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
}
|
|
|
|
if ((ret = avio_open_dyn_buf(&oc->pb)) < 0)
|
|
return ret;
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
set_http_options(s, &options, hls);
|
|
if (byterange_mode) {
|
|
ret = hlsenc_io_open(s, &vs->out, vs->basename, &options);
|
|
} else {
|
|
ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options);
|
|
}
|
|
av_dict_free(&options);
|
|
}
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", vs->fmp4_init_filename);
|
|
return ret;
|
|
}
|
|
|
|
av_dict_copy(&options, hls->format_options, 0);
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
av_dict_set(&options, "fflags", "-autobsf", 0);
|
|
av_dict_set(&options, "movflags", "+frag_custom+dash+delay_moov", AV_DICT_APPEND);
|
|
} else {
|
|
/* We only require one PAT/PMT per segment. */
|
|
char period[21];
|
|
snprintf(period, sizeof(period), "%d", (INT_MAX / 2) - 1);
|
|
av_dict_set(&options, "sdt_period", period, AV_DICT_DONT_OVERWRITE);
|
|
av_dict_set(&options, "pat_period", period, AV_DICT_DONT_OVERWRITE);
|
|
}
|
|
ret = avformat_init_output(oc, &options);
|
|
remaining_options = av_dict_count(options);
|
|
av_dict_free(&options);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (remaining_options) {
|
|
av_log(s, AV_LOG_ERROR, "Some of the provided format options are not recognized\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
avio_flush(oc->pb);
|
|
return 0;
|
|
}
|
|
|
|
static HLSSegment *find_segment_by_filename(HLSSegment *segment, const char *filename)
|
|
{
|
|
while (segment) {
|
|
if (!av_strcasecmp(segment->filename,filename))
|
|
return segment;
|
|
segment = segment->next;
|
|
}
|
|
return (HLSSegment *) NULL;
|
|
}
|
|
|
|
static int sls_flags_filename_process(struct AVFormatContext *s, HLSContext *hls,
|
|
VariantStream *vs, HLSSegment *en,
|
|
double duration, int64_t pos, int64_t size)
|
|
{
|
|
if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
|
|
strlen(vs->current_segment_final_filename_fmt)) {
|
|
char * new_url = av_strdup(vs->current_segment_final_filename_fmt);
|
|
if (!new_url) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
ff_format_set_url(vs->avf, new_url);
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename, vs->avf->url, 's', pos + size) < 1) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_size flag\n",
|
|
vs->avf->url);
|
|
av_freep(&filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(vs->avf, filename);
|
|
}
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename, vs->avf->url,
|
|
't', (int64_t)round(duration * HLS_MICROSECOND_UNIT)) < 1) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_time flag\n",
|
|
vs->avf->url);
|
|
av_freep(&filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(vs->avf, filename);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int sls_flag_check_duration_size_index(HLSContext *hls)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_duration hls_flag requires strftime to be true\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_size hls_flag requires strfime to be true\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
if (hls->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_index hls_flag requires strftime to be true\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int sls_flag_check_duration_size(HLSContext *hls, VariantStream *vs)
|
|
{
|
|
const char *proto = avio_find_protocol_name(vs->basename);
|
|
int segment_renaming_ok = proto && !strcmp(proto, "file");
|
|
int ret = 0;
|
|
|
|
if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) && !segment_renaming_ok) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_duration hls_flag works only with file protocol segment names\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
if ((hls->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) && !segment_renaming_ok) {
|
|
av_log(hls, AV_LOG_ERROR,
|
|
"second_level_segment_size hls_flag works only with file protocol segment names\n");
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void sls_flag_file_rename(HLSContext *hls, VariantStream *vs, char *old_filename) {
|
|
if ((hls->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) &&
|
|
strlen(vs->current_segment_final_filename_fmt)) {
|
|
ff_rename(old_filename, vs->avf->url, hls);
|
|
}
|
|
}
|
|
|
|
static int sls_flag_use_localtime_filename(AVFormatContext *oc, HLSContext *c, VariantStream *vs)
|
|
{
|
|
if (c->flags & HLS_SECOND_LEVEL_SEGMENT_INDEX) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename,
|
|
#if FF_API_HLS_WRAP
|
|
oc->url, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
|
|
#else
|
|
oc->url, 'd', vs->sequence) < 1) {
|
|
#endif
|
|
av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_index flag\n",
|
|
oc->url);
|
|
av_freep(&filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(oc, filename);
|
|
}
|
|
if (c->flags & (HLS_SECOND_LEVEL_SEGMENT_SIZE | HLS_SECOND_LEVEL_SEGMENT_DURATION)) {
|
|
av_strlcpy(vs->current_segment_final_filename_fmt, oc->url,
|
|
sizeof(vs->current_segment_final_filename_fmt));
|
|
if (c->flags & HLS_SECOND_LEVEL_SEGMENT_SIZE) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename, oc->url, 's', 0) < 1) {
|
|
av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_size flag\n",
|
|
oc->url);
|
|
av_freep(&filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(oc, filename);
|
|
}
|
|
if (c->flags & HLS_SECOND_LEVEL_SEGMENT_DURATION) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename, oc->url, 't', 0) < 1) {
|
|
av_log(c, AV_LOG_ERROR, "Invalid second level segment filename template '%s', "
|
|
"you can try to remove second_level_segment_time flag\n",
|
|
oc->url);
|
|
av_freep(&filename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(oc, filename);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Create a new segment and append it to the segment list */
|
|
static int hls_append_segment(struct AVFormatContext *s, HLSContext *hls,
|
|
VariantStream *vs, double duration, int64_t pos,
|
|
int64_t size)
|
|
{
|
|
HLSSegment *en = av_malloc(sizeof(*en));
|
|
const char *filename;
|
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
int ret;
|
|
|
|
if (!en)
|
|
return AVERROR(ENOMEM);
|
|
|
|
en->var_stream_idx = vs->var_stream_idx;
|
|
ret = sls_flags_filename_process(s, hls, vs, en, duration, pos, size);
|
|
if (ret < 0) {
|
|
av_freep(&en);
|
|
return ret;
|
|
}
|
|
|
|
filename = av_basename(vs->avf->url);
|
|
|
|
if (hls->use_localtime_mkdir) {
|
|
filename = vs->avf->url;
|
|
}
|
|
if ((find_segment_by_filename(vs->segments, filename) || find_segment_by_filename(vs->old_segments, filename))
|
|
&& !byterange_mode) {
|
|
av_log(hls, AV_LOG_WARNING, "Duplicated segment filename detected: %s\n", filename);
|
|
}
|
|
av_strlcpy(en->filename, filename, sizeof(en->filename));
|
|
|
|
if (vs->has_subtitle)
|
|
av_strlcpy(en->sub_filename, av_basename(vs->vtt_avf->url), sizeof(en->sub_filename));
|
|
else
|
|
en->sub_filename[0] = '\0';
|
|
|
|
en->duration = duration;
|
|
en->pos = pos;
|
|
en->size = size;
|
|
en->keyframe_pos = vs->video_keyframe_pos;
|
|
en->keyframe_size = vs->video_keyframe_size;
|
|
en->next = NULL;
|
|
en->discont = 0;
|
|
|
|
if (vs->discontinuity) {
|
|
en->discont = 1;
|
|
vs->discontinuity = 0;
|
|
}
|
|
|
|
if (hls->key_info_file || hls->encrypt) {
|
|
av_strlcpy(en->key_uri, vs->key_uri, sizeof(en->key_uri));
|
|
av_strlcpy(en->iv_string, vs->iv_string, sizeof(en->iv_string));
|
|
}
|
|
|
|
if (!vs->segments)
|
|
vs->segments = en;
|
|
else
|
|
vs->last_segment->next = en;
|
|
|
|
vs->last_segment = en;
|
|
|
|
// EVENT or VOD playlists imply sliding window cannot be used
|
|
if (hls->pl_type != PLAYLIST_TYPE_NONE)
|
|
hls->max_nb_segments = 0;
|
|
|
|
if (hls->max_nb_segments && vs->nb_entries >= hls->max_nb_segments) {
|
|
en = vs->segments;
|
|
vs->initial_prog_date_time += en->duration;
|
|
vs->segments = en->next;
|
|
if (en && hls->flags & HLS_DELETE_SEGMENTS &&
|
|
#if FF_API_HLS_WRAP
|
|
!(hls->flags & HLS_SINGLE_FILE || hls->wrap)) {
|
|
#else
|
|
!(hls->flags & HLS_SINGLE_FILE)) {
|
|
#endif
|
|
en->next = vs->old_segments;
|
|
vs->old_segments = en;
|
|
if ((ret = hls_delete_old_segments(s, hls, vs)) < 0)
|
|
return ret;
|
|
} else
|
|
av_freep(&en);
|
|
} else
|
|
vs->nb_entries++;
|
|
|
|
if (hls->max_seg_size > 0) {
|
|
return 0;
|
|
}
|
|
vs->sequence++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_playlist(AVFormatContext *s, const char *url, VariantStream *vs)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
AVIOContext *in;
|
|
int ret = 0, is_segment = 0;
|
|
int64_t new_start_pos;
|
|
char line[MAX_URL_SIZE];
|
|
const char *ptr;
|
|
const char *end;
|
|
|
|
if ((ret = ffio_open_whitelist(&in, url, AVIO_FLAG_READ,
|
|
&s->interrupt_callback, NULL,
|
|
s->protocol_whitelist, s->protocol_blacklist)) < 0)
|
|
return ret;
|
|
|
|
ff_get_chomp_line(in, line, sizeof(line));
|
|
if (strcmp(line, "#EXTM3U")) {
|
|
ret = AVERROR_INVALIDDATA;
|
|
goto fail;
|
|
}
|
|
|
|
vs->discontinuity = 0;
|
|
while (!avio_feof(in)) {
|
|
ff_get_chomp_line(in, line, sizeof(line));
|
|
if (av_strstart(line, "#EXT-X-MEDIA-SEQUENCE:", &ptr)) {
|
|
int64_t tmp_sequence = strtoll(ptr, NULL, 10);
|
|
if (tmp_sequence < vs->sequence)
|
|
av_log(hls, AV_LOG_VERBOSE,
|
|
"Found playlist sequence number was smaller """
|
|
"than specified start sequence number: %"PRId64" < %"PRId64", "
|
|
"omitting\n", tmp_sequence, hls->start_sequence);
|
|
else {
|
|
av_log(hls, AV_LOG_DEBUG, "Found playlist sequence number: %"PRId64"\n", tmp_sequence);
|
|
vs->sequence = tmp_sequence;
|
|
}
|
|
} else if (av_strstart(line, "#EXT-X-DISCONTINUITY", &ptr)) {
|
|
is_segment = 1;
|
|
vs->discontinuity = 1;
|
|
} else if (av_strstart(line, "#EXTINF:", &ptr)) {
|
|
is_segment = 1;
|
|
vs->duration = atof(ptr);
|
|
} else if (av_stristart(line, "#EXT-X-KEY:", &ptr)) {
|
|
ptr = av_stristr(line, "URI=\"");
|
|
if (ptr) {
|
|
ptr += strlen("URI=\"");
|
|
end = av_stristr(ptr, ",");
|
|
if (end) {
|
|
av_strlcpy(vs->key_uri, ptr, end - ptr);
|
|
} else {
|
|
av_strlcpy(vs->key_uri, ptr, sizeof(vs->key_uri));
|
|
}
|
|
}
|
|
|
|
ptr = av_stristr(line, "IV=0x");
|
|
if (ptr) {
|
|
ptr += strlen("IV=0x");
|
|
end = av_stristr(ptr, ",");
|
|
if (end) {
|
|
av_strlcpy(vs->iv_string, ptr, end - ptr);
|
|
} else {
|
|
av_strlcpy(vs->iv_string, ptr, sizeof(vs->iv_string));
|
|
}
|
|
}
|
|
|
|
} else if (av_strstart(line, "#", NULL)) {
|
|
continue;
|
|
} else if (line[0]) {
|
|
if (is_segment) {
|
|
char *new_file = av_strdup(line);
|
|
if (!new_file) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
ff_format_set_url(vs->avf, new_file);
|
|
is_segment = 0;
|
|
new_start_pos = avio_tell(vs->avf->pb);
|
|
vs->size = new_start_pos - vs->start_pos;
|
|
vs->initial_prog_date_time -= vs->duration; // this is a previously existing segment
|
|
ret = hls_append_segment(s, hls, vs, vs->duration, vs->start_pos, vs->size);
|
|
if (ret < 0)
|
|
goto fail;
|
|
vs->start_pos = new_start_pos;
|
|
}
|
|
}
|
|
}
|
|
|
|
fail:
|
|
avio_close(in);
|
|
return ret;
|
|
}
|
|
|
|
static void hls_free_segments(HLSSegment *p)
|
|
{
|
|
HLSSegment *en;
|
|
|
|
while (p) {
|
|
en = p;
|
|
p = p->next;
|
|
av_freep(&en);
|
|
}
|
|
}
|
|
|
|
static int hls_rename_temp_file(AVFormatContext *s, AVFormatContext *oc)
|
|
{
|
|
size_t len = strlen(oc->url);
|
|
char *final_filename = av_strdup(oc->url);
|
|
int ret;
|
|
|
|
if (!final_filename)
|
|
return AVERROR(ENOMEM);
|
|
final_filename[len-4] = '\0';
|
|
ret = ff_rename(oc->url, final_filename, s);
|
|
oc->url[len-4] = '\0';
|
|
av_freep(&final_filename);
|
|
return ret;
|
|
}
|
|
|
|
static const char* get_relative_url(const char *master_url, const char *media_url)
|
|
{
|
|
const char *p = strrchr(master_url, '/');
|
|
size_t base_len = 0;
|
|
|
|
if (!p) p = strrchr(master_url, '\\');
|
|
|
|
if (p) {
|
|
base_len = p - master_url;
|
|
if (av_strncasecmp(master_url, media_url, base_len)) {
|
|
av_log(NULL, AV_LOG_WARNING, "Unable to find relative url\n");
|
|
return NULL;
|
|
}
|
|
} else {
|
|
return media_url;
|
|
}
|
|
|
|
return media_url + base_len + 1;
|
|
}
|
|
|
|
static int64_t get_stream_bit_rate(AVStream *stream)
|
|
{
|
|
AVCPBProperties *props = (AVCPBProperties*)av_stream_get_side_data(
|
|
stream,
|
|
AV_PKT_DATA_CPB_PROPERTIES,
|
|
NULL
|
|
);
|
|
|
|
if (stream->codecpar->bit_rate)
|
|
return stream->codecpar->bit_rate;
|
|
else if (props)
|
|
return props->max_bitrate;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int create_master_playlist(AVFormatContext *s,
|
|
VariantStream * const input_vs)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
VariantStream *vs, *temp_vs;
|
|
AVStream *vid_st, *aud_st;
|
|
AVDictionary *options = NULL;
|
|
unsigned int i, j;
|
|
int ret, bandwidth;
|
|
const char *m3u8_rel_name = NULL;
|
|
const char *vtt_m3u8_rel_name = NULL;
|
|
const char *ccgroup;
|
|
const char *sgroup = NULL;
|
|
ClosedCaptionsStream *ccs;
|
|
const char *proto = avio_find_protocol_name(hls->master_m3u8_url);
|
|
int is_file_proto = proto && !strcmp(proto, "file");
|
|
int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || hls->master_publish_rate);
|
|
char temp_filename[MAX_URL_SIZE];
|
|
|
|
input_vs->m3u8_created = 1;
|
|
if (!hls->master_m3u8_created) {
|
|
/* For the first time, wait until all the media playlists are created */
|
|
for (i = 0; i < hls->nb_varstreams; i++)
|
|
if (!hls->var_streams[i].m3u8_created)
|
|
return 0;
|
|
} else {
|
|
/* Keep publishing the master playlist at the configured rate */
|
|
if (&hls->var_streams[0] != input_vs || !hls->master_publish_rate ||
|
|
input_vs->number % hls->master_publish_rate)
|
|
return 0;
|
|
}
|
|
|
|
set_http_options(s, &options, hls);
|
|
snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", hls->master_m3u8_url);
|
|
ret = hlsenc_io_open(s, &hls->m3u8_out, temp_filename, &options);
|
|
av_dict_free(&options);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Failed to open master play list file '%s'\n",
|
|
temp_filename);
|
|
goto fail;
|
|
}
|
|
|
|
ff_hls_write_playlist_version(hls->m3u8_out, hls->version);
|
|
|
|
for (i = 0; i < hls->nb_ccstreams; i++) {
|
|
ccs = &(hls->cc_streams[i]);
|
|
avio_printf(hls->m3u8_out, "#EXT-X-MEDIA:TYPE=CLOSED-CAPTIONS");
|
|
avio_printf(hls->m3u8_out, ",GROUP-ID=\"%s\"", ccs->ccgroup);
|
|
avio_printf(hls->m3u8_out, ",NAME=\"%s\"", ccs->instreamid);
|
|
if (ccs->language)
|
|
avio_printf(hls->m3u8_out, ",LANGUAGE=\"%s\"", ccs->language);
|
|
avio_printf(hls->m3u8_out, ",INSTREAM-ID=\"%s\"\n", ccs->instreamid);
|
|
}
|
|
|
|
/* For audio only variant streams add #EXT-X-MEDIA tag with attributes*/
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
vs = &(hls->var_streams[i]);
|
|
|
|
if (vs->has_video || vs->has_subtitle || !vs->agroup)
|
|
continue;
|
|
|
|
m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
|
|
if (!m3u8_rel_name) {
|
|
av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
|
|
goto fail;
|
|
}
|
|
|
|
ff_hls_write_audio_rendition(hls->m3u8_out, vs->agroup, m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
|
|
}
|
|
|
|
/* For variant streams with video add #EXT-X-STREAM-INF tag with attributes*/
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
vs = &(hls->var_streams[i]);
|
|
|
|
m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->m3u8_name);
|
|
if (!m3u8_rel_name) {
|
|
av_log(s, AV_LOG_ERROR, "Unable to find relative URL\n");
|
|
goto fail;
|
|
}
|
|
|
|
vid_st = NULL;
|
|
aud_st = NULL;
|
|
for (j = 0; j < vs->nb_streams; j++) {
|
|
if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
|
|
vid_st = vs->streams[j];
|
|
else if (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
|
|
aud_st = vs->streams[j];
|
|
}
|
|
|
|
if (!vid_st && !aud_st) {
|
|
av_log(s, AV_LOG_WARNING, "Media stream not found\n");
|
|
continue;
|
|
}
|
|
|
|
/**
|
|
* Traverse through the list of audio only rendition streams and find
|
|
* the rendition which has highest bitrate in the same audio group
|
|
*/
|
|
if (vs->agroup) {
|
|
for (j = 0; j < hls->nb_varstreams; j++) {
|
|
temp_vs = &(hls->var_streams[j]);
|
|
if (!temp_vs->has_video && !temp_vs->has_subtitle &&
|
|
temp_vs->agroup &&
|
|
!av_strcasecmp(temp_vs->agroup, vs->agroup)) {
|
|
if (!aud_st)
|
|
aud_st = temp_vs->streams[0];
|
|
if (temp_vs->streams[0]->codecpar->bit_rate >
|
|
aud_st->codecpar->bit_rate)
|
|
aud_st = temp_vs->streams[0];
|
|
}
|
|
}
|
|
}
|
|
|
|
bandwidth = 0;
|
|
if (vid_st)
|
|
bandwidth += get_stream_bit_rate(vid_st);
|
|
if (aud_st)
|
|
bandwidth += get_stream_bit_rate(aud_st);
|
|
bandwidth += bandwidth / 10;
|
|
|
|
ccgroup = NULL;
|
|
if (vid_st && vs->ccgroup) {
|
|
/* check if this group name is available in the cc map string */
|
|
for (j = 0; j < hls->nb_ccstreams; j++) {
|
|
ccs = &(hls->cc_streams[j]);
|
|
if (!av_strcasecmp(ccs->ccgroup, vs->ccgroup)) {
|
|
ccgroup = vs->ccgroup;
|
|
break;
|
|
}
|
|
}
|
|
if (j == hls->nb_ccstreams)
|
|
av_log(s, AV_LOG_WARNING, "mapping ccgroup %s not found\n",
|
|
vs->ccgroup);
|
|
}
|
|
|
|
if (vid_st && vs->sgroup) {
|
|
sgroup = vs->sgroup;
|
|
vtt_m3u8_rel_name = get_relative_url(hls->master_m3u8_url, vs->vtt_m3u8_name);
|
|
if (!vtt_m3u8_rel_name) {
|
|
av_log(s, AV_LOG_WARNING, "Unable to find relative subtitle URL\n");
|
|
break;
|
|
}
|
|
|
|
ff_hls_write_subtitle_rendition(hls->m3u8_out, sgroup, vtt_m3u8_rel_name, vs->language, i, hls->has_default_key ? vs->is_default : 1);
|
|
}
|
|
|
|
if (!hls->has_default_key || !hls->has_video_m3u8) {
|
|
ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
|
|
aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
|
|
} else {
|
|
if (vid_st) {
|
|
ff_hls_write_stream_info(vid_st, hls->m3u8_out, bandwidth, m3u8_rel_name,
|
|
aud_st ? vs->agroup : NULL, vs->codec_attr, ccgroup, sgroup);
|
|
}
|
|
}
|
|
}
|
|
fail:
|
|
if (ret >=0)
|
|
hls->master_m3u8_created = 1;
|
|
hlsenc_io_close(s, &hls->m3u8_out, temp_filename);
|
|
if (use_temp_file)
|
|
ff_rename(temp_filename, hls->master_m3u8_url, s);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hls_window(AVFormatContext *s, int last, VariantStream *vs)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
HLSSegment *en;
|
|
int target_duration = 0;
|
|
int ret = 0;
|
|
char temp_filename[MAX_URL_SIZE];
|
|
char temp_vtt_filename[MAX_URL_SIZE];
|
|
int64_t sequence = FFMAX(hls->start_sequence, vs->sequence - vs->nb_entries);
|
|
const char *proto = avio_find_protocol_name(vs->m3u8_name);
|
|
int is_file_proto = proto && !strcmp(proto, "file");
|
|
int use_temp_file = is_file_proto && ((hls->flags & HLS_TEMP_FILE) || !(hls->pl_type == PLAYLIST_TYPE_VOD));
|
|
static unsigned warned_non_file;
|
|
char *key_uri = NULL;
|
|
char *iv_string = NULL;
|
|
AVDictionary *options = NULL;
|
|
double prog_date_time = vs->initial_prog_date_time;
|
|
double *prog_date_time_p = (hls->flags & HLS_PROGRAM_DATE_TIME) ? &prog_date_time : NULL;
|
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
|
|
hls->version = 3;
|
|
if (byterange_mode) {
|
|
hls->version = 4;
|
|
sequence = 0;
|
|
}
|
|
|
|
if (hls->flags & HLS_INDEPENDENT_SEGMENTS) {
|
|
hls->version = 6;
|
|
}
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
hls->version = 7;
|
|
}
|
|
|
|
if (!is_file_proto && (hls->flags & HLS_TEMP_FILE) && !warned_non_file++)
|
|
av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
|
|
|
|
set_http_options(s, &options, hls);
|
|
snprintf(temp_filename, sizeof(temp_filename), use_temp_file ? "%s.tmp" : "%s", vs->m3u8_name);
|
|
if ((ret = hlsenc_io_open(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename, &options)) < 0) {
|
|
if (hls->ignore_io_errors)
|
|
ret = 0;
|
|
goto fail;
|
|
}
|
|
|
|
for (en = vs->segments; en; en = en->next) {
|
|
if (target_duration <= en->duration)
|
|
target_duration = lrint(en->duration);
|
|
}
|
|
|
|
vs->discontinuity_set = 0;
|
|
ff_hls_write_playlist_header(byterange_mode ? hls->m3u8_out : vs->out, hls->version, hls->allowcache,
|
|
target_duration, sequence, hls->pl_type, hls->flags & HLS_I_FRAMES_ONLY);
|
|
|
|
if ((hls->flags & HLS_DISCONT_START) && sequence==hls->start_sequence && vs->discontinuity_set==0) {
|
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-DISCONTINUITY\n");
|
|
vs->discontinuity_set = 1;
|
|
}
|
|
if (vs->has_video && (hls->flags & HLS_INDEPENDENT_SEGMENTS)) {
|
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-INDEPENDENT-SEGMENTS\n");
|
|
}
|
|
for (en = vs->segments; en; en = en->next) {
|
|
if ((hls->encrypt || hls->key_info_file) && (!key_uri || strcmp(en->key_uri, key_uri) ||
|
|
av_strcasecmp(en->iv_string, iv_string))) {
|
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "#EXT-X-KEY:METHOD=AES-128,URI=\"%s\"", en->key_uri);
|
|
if (*en->iv_string)
|
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, ",IV=0x%s", en->iv_string);
|
|
avio_printf(byterange_mode ? hls->m3u8_out : vs->out, "\n");
|
|
key_uri = en->key_uri;
|
|
iv_string = en->iv_string;
|
|
}
|
|
|
|
if ((hls->segment_type == SEGMENT_TYPE_FMP4) && (en == vs->segments)) {
|
|
ff_hls_write_init_file(byterange_mode ? hls->m3u8_out : vs->out, (hls->flags & HLS_SINGLE_FILE) ? en->filename : vs->fmp4_init_filename,
|
|
hls->flags & HLS_SINGLE_FILE, vs->init_range_length, 0);
|
|
}
|
|
|
|
ret = ff_hls_write_file_entry(byterange_mode ? hls->m3u8_out : vs->out, en->discont, byterange_mode,
|
|
en->duration, hls->flags & HLS_ROUND_DURATIONS,
|
|
en->size, en->pos, hls->baseurl,
|
|
en->filename, prog_date_time_p, en->keyframe_size, en->keyframe_pos, hls->flags & HLS_I_FRAMES_ONLY);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
|
|
}
|
|
}
|
|
|
|
if (last && (hls->flags & HLS_OMIT_ENDLIST)==0)
|
|
ff_hls_write_end_list(byterange_mode ? hls->m3u8_out : vs->out);
|
|
|
|
if (vs->vtt_m3u8_name) {
|
|
snprintf(temp_vtt_filename, sizeof(temp_vtt_filename), use_temp_file ? "%s.tmp" : "%s", vs->vtt_m3u8_name);
|
|
if ((ret = hlsenc_io_open(s, &hls->sub_m3u8_out, temp_vtt_filename, &options)) < 0) {
|
|
if (hls->ignore_io_errors)
|
|
ret = 0;
|
|
goto fail;
|
|
}
|
|
ff_hls_write_playlist_header(hls->sub_m3u8_out, hls->version, hls->allowcache,
|
|
target_duration, sequence, PLAYLIST_TYPE_NONE, 0);
|
|
for (en = vs->segments; en; en = en->next) {
|
|
ret = ff_hls_write_file_entry(hls->sub_m3u8_out, 0, byterange_mode,
|
|
en->duration, 0, en->size, en->pos,
|
|
hls->baseurl, en->sub_filename, NULL, 0, 0, 0);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
|
|
}
|
|
}
|
|
|
|
if (last)
|
|
ff_hls_write_end_list(hls->sub_m3u8_out);
|
|
|
|
}
|
|
|
|
fail:
|
|
av_dict_free(&options);
|
|
ret = hlsenc_io_close(s, byterange_mode ? &hls->m3u8_out : &vs->out, temp_filename);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
hlsenc_io_close(s, &hls->sub_m3u8_out, vs->vtt_m3u8_name);
|
|
if (use_temp_file) {
|
|
ff_rename(temp_filename, vs->m3u8_name, s);
|
|
if (vs->vtt_m3u8_name)
|
|
ff_rename(temp_vtt_filename, vs->vtt_m3u8_name, s);
|
|
}
|
|
if (ret >= 0 && hls->master_pl_name)
|
|
if (create_master_playlist(s, vs) < 0)
|
|
av_log(s, AV_LOG_WARNING, "Master playlist creation failed\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hls_start(AVFormatContext *s, VariantStream *vs)
|
|
{
|
|
HLSContext *c = s->priv_data;
|
|
AVFormatContext *oc = vs->avf;
|
|
AVFormatContext *vtt_oc = vs->vtt_avf;
|
|
AVDictionary *options = NULL;
|
|
const char *proto = NULL;
|
|
int use_temp_file = 0;
|
|
char iv_string[KEYSIZE*2 + 1];
|
|
int err = 0;
|
|
|
|
if (c->flags & HLS_SINGLE_FILE) {
|
|
char *new_name = av_strdup(vs->basename);
|
|
if (!new_name)
|
|
return AVERROR(ENOMEM);
|
|
ff_format_set_url(oc, new_name);
|
|
if (vs->vtt_basename) {
|
|
new_name = av_strdup(vs->vtt_basename);
|
|
if (!new_name)
|
|
return AVERROR(ENOMEM);
|
|
ff_format_set_url(vtt_oc, new_name);
|
|
}
|
|
} else if (c->max_seg_size > 0) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename,
|
|
#if FF_API_HLS_WRAP
|
|
vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
|
|
#else
|
|
vs->basename, 'd', vs->sequence) < 1) {
|
|
#endif
|
|
av_freep(&filename);
|
|
av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s', you can try to use -strftime 1 with it\n", vs->basename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(oc, filename);
|
|
} else {
|
|
if (c->use_localtime) {
|
|
time_t now0;
|
|
struct tm *tm, tmpbuf;
|
|
int bufsize = strlen(vs->basename) + MAX_URL_SIZE;
|
|
char *buf = av_mallocz(bufsize);
|
|
if (!buf)
|
|
return AVERROR(ENOMEM);
|
|
time(&now0);
|
|
tm = localtime_r(&now0, &tmpbuf);
|
|
ff_format_set_url(oc, buf);
|
|
if (!strftime(oc->url, bufsize, vs->basename, tm)) {
|
|
av_log(oc, AV_LOG_ERROR, "Could not get segment filename with strftime\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
err = sls_flag_use_localtime_filename(oc, c, vs);
|
|
if (err < 0) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
if (c->use_localtime_mkdir) {
|
|
const char *dir;
|
|
char *fn_copy = av_strdup(oc->url);
|
|
if (!fn_copy)
|
|
return AVERROR(ENOMEM);
|
|
dir = av_dirname(fn_copy);
|
|
if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
|
|
av_log(oc, AV_LOG_ERROR, "Could not create directory %s with use_localtime_mkdir\n", dir);
|
|
av_freep(&fn_copy);
|
|
return AVERROR(errno);
|
|
}
|
|
av_freep(&fn_copy);
|
|
}
|
|
} else {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename,
|
|
#if FF_API_HLS_WRAP
|
|
vs->basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
|
|
#else
|
|
vs->basename, 'd', vs->sequence) < 1) {
|
|
#endif
|
|
av_freep(&filename);
|
|
av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s' you can try to use -strftime 1 with it\n", vs->basename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(oc, filename);
|
|
}
|
|
if (vs->vtt_basename) {
|
|
char *filename = NULL;
|
|
if (replace_int_data_in_filename(&filename,
|
|
#if FF_API_HLS_WRAP
|
|
vs->vtt_basename, 'd', c->wrap ? vs->sequence % c->wrap : vs->sequence) < 1) {
|
|
#else
|
|
vs->vtt_basename, 'd', vs->sequence) < 1) {
|
|
#endif
|
|
av_freep(&filename);
|
|
av_log(vtt_oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", vs->vtt_basename);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
ff_format_set_url(vtt_oc, filename);
|
|
}
|
|
}
|
|
|
|
proto = avio_find_protocol_name(oc->url);
|
|
use_temp_file = proto && !strcmp(proto, "file") && (c->flags & HLS_TEMP_FILE);
|
|
|
|
if (use_temp_file) {
|
|
char *new_name = av_asprintf("%s.tmp", oc->url);
|
|
if (!new_name)
|
|
return AVERROR(ENOMEM);
|
|
ff_format_set_url(oc, new_name);
|
|
}
|
|
|
|
if (c->key_info_file || c->encrypt) {
|
|
if (c->segment_type == SEGMENT_TYPE_FMP4) {
|
|
av_log(s, AV_LOG_ERROR, "Encrypted fmp4 not yet supported\n");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
|
|
if (c->key_info_file && c->encrypt) {
|
|
av_log(s, AV_LOG_WARNING, "Cannot use both -hls_key_info_file and -hls_enc,"
|
|
" ignoring -hls_enc\n");
|
|
}
|
|
|
|
if (!vs->encrypt_started || (c->flags & HLS_PERIODIC_REKEY)) {
|
|
if (c->key_info_file) {
|
|
if ((err = hls_encryption_start(s, vs)) < 0)
|
|
goto fail;
|
|
} else {
|
|
if (!c->encrypt_started) {
|
|
if ((err = do_encrypt(s, vs)) < 0)
|
|
goto fail;
|
|
c->encrypt_started = 1;
|
|
}
|
|
av_strlcpy(vs->key_uri, c->key_uri, sizeof(vs->key_uri));
|
|
av_strlcpy(vs->key_string, c->key_string, sizeof(vs->key_string));
|
|
av_strlcpy(vs->iv_string, c->iv_string, sizeof(vs->iv_string));
|
|
}
|
|
vs->encrypt_started = 1;
|
|
}
|
|
err = av_strlcpy(iv_string, vs->iv_string, sizeof(iv_string));
|
|
if (!err) {
|
|
snprintf(iv_string, sizeof(iv_string), "%032"PRIx64, vs->sequence);
|
|
memset(vs->iv_string, 0, sizeof(vs->iv_string));
|
|
memcpy(vs->iv_string, iv_string, sizeof(iv_string));
|
|
}
|
|
}
|
|
if (c->segment_type != SEGMENT_TYPE_FMP4) {
|
|
if (oc->oformat->priv_class && oc->priv_data) {
|
|
av_opt_set(oc->priv_data, "mpegts_flags", "resend_headers", 0);
|
|
}
|
|
if (c->flags & HLS_SINGLE_FILE) {
|
|
if (c->key_info_file || c->encrypt) {
|
|
av_dict_set(&options, "encryption_key", vs->key_string, 0);
|
|
av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
|
|
|
|
/* Write temp file with cryption content */
|
|
av_freep(&vs->basename_tmp);
|
|
vs->basename_tmp = av_asprintf("crypto:%s.tmp", oc->url);
|
|
|
|
/* append temp file content into single file */
|
|
av_freep(&vs->basename);
|
|
vs->basename = av_asprintf("%s", oc->url);
|
|
} else {
|
|
vs->basename_tmp = vs->basename;
|
|
}
|
|
set_http_options(s, &options, c);
|
|
if (!vs->out_single_file)
|
|
if ((err = hlsenc_io_open(s, &vs->out_single_file, vs->basename, &options)) < 0) {
|
|
if (c->ignore_io_errors)
|
|
err = 0;
|
|
goto fail;
|
|
}
|
|
|
|
if ((err = hlsenc_io_open(s, &vs->out, vs->basename_tmp, &options)) < 0) {
|
|
if (c->ignore_io_errors)
|
|
err = 0;
|
|
goto fail;
|
|
}
|
|
|
|
}
|
|
}
|
|
if (vs->vtt_basename) {
|
|
set_http_options(s, &options, c);
|
|
if ((err = hlsenc_io_open(s, &vtt_oc->pb, vtt_oc->url, &options)) < 0) {
|
|
if (c->ignore_io_errors)
|
|
err = 0;
|
|
goto fail;
|
|
}
|
|
}
|
|
av_dict_free(&options);
|
|
|
|
if (vs->vtt_basename) {
|
|
err = avformat_write_header(vtt_oc,NULL);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
fail:
|
|
av_dict_free(&options);
|
|
|
|
return err;
|
|
}
|
|
|
|
static const char * get_default_pattern_localtime_fmt(AVFormatContext *s)
|
|
{
|
|
char b[21];
|
|
time_t t = time(NULL);
|
|
struct tm *p, tmbuf;
|
|
HLSContext *hls = s->priv_data;
|
|
|
|
p = localtime_r(&t, &tmbuf);
|
|
// no %s support when strftime returned error or left format string unchanged
|
|
// also no %s support on MSVC, which invokes the invalid parameter handler on unsupported format strings, instead of returning an error
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.m4s" : "-%s.m4s";
|
|
}
|
|
return (HAVE_LIBC_MSVCRT || !strftime(b, sizeof(b), "%s", p) || !strcmp(b, "%s")) ? "-%Y%m%d%H%M%S.ts" : "-%s.ts";
|
|
}
|
|
|
|
static int append_postfix(char *name, int name_buf_len, int i)
|
|
{
|
|
char *p;
|
|
char extension[10] = {'\0'};
|
|
|
|
p = strrchr(name, '.');
|
|
if (p) {
|
|
av_strlcpy(extension, p, sizeof(extension));
|
|
*p = '\0';
|
|
}
|
|
|
|
snprintf(name + strlen(name), name_buf_len - strlen(name), POSTFIX_PATTERN, i);
|
|
|
|
if (strlen(extension))
|
|
av_strlcat(name, extension, name_buf_len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int validate_name(int nb_vs, const char *fn)
|
|
{
|
|
const char *filename, *subdir_name;
|
|
char *fn_dup = NULL;
|
|
int ret = 0;
|
|
|
|
if (!fn)
|
|
return AVERROR(EINVAL);
|
|
|
|
fn_dup = av_strdup(fn);
|
|
if (!fn_dup)
|
|
return AVERROR(ENOMEM);
|
|
filename = av_basename(fn);
|
|
subdir_name = av_dirname(fn_dup);
|
|
|
|
if (nb_vs > 1 && !av_stristr(filename, "%v") && !av_stristr(subdir_name, "%v")) {
|
|
av_log(NULL, AV_LOG_ERROR, "More than 1 variant streams are present, %%v is expected "
|
|
"either in the filename or in the sub-directory name of file %s\n", fn);
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
|
|
if (av_stristr(filename, "%v") && av_stristr(subdir_name, "%v")) {
|
|
av_log(NULL, AV_LOG_ERROR, "%%v is expected either in the filename or "
|
|
"in the sub-directory name of file %s, but only in one of them\n", fn);
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
|
|
fail:
|
|
av_freep(&fn_dup);
|
|
return ret;
|
|
}
|
|
|
|
static int format_name(const char *buf, char **s, int index, const char *varname)
|
|
{
|
|
const char *proto, *dir;
|
|
char *orig_buf_dup = NULL, *mod_buf_dup = NULL;
|
|
int ret = 0;
|
|
|
|
orig_buf_dup = av_strdup(buf);
|
|
if (!orig_buf_dup)
|
|
return AVERROR(ENOMEM);
|
|
|
|
if (!av_stristr(buf, "%v")) {
|
|
*s = orig_buf_dup;
|
|
return 0;
|
|
}
|
|
|
|
if (!varname) {
|
|
if (replace_int_data_in_filename(s, orig_buf_dup, 'v', index) < 1) {
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
} else {
|
|
if (replace_str_data_in_filename(s, orig_buf_dup, 'v', varname) < 1) {
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
proto = avio_find_protocol_name(orig_buf_dup);
|
|
dir = av_dirname(orig_buf_dup);
|
|
|
|
/* if %v is present in the file's directory, create sub-directory */
|
|
if (av_stristr(dir, "%v") && proto && !strcmp(proto, "file")) {
|
|
mod_buf_dup = av_strdup(*s);
|
|
dir = av_dirname(mod_buf_dup);
|
|
if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
|
|
ret = AVERROR(errno);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
fail:
|
|
av_freep(&orig_buf_dup);
|
|
av_freep(&mod_buf_dup);
|
|
return ret;
|
|
}
|
|
|
|
static int get_nth_codec_stream_index(AVFormatContext *s,
|
|
enum AVMediaType codec_type,
|
|
int64_t stream_id)
|
|
{
|
|
unsigned int stream_index, cnt;
|
|
if (stream_id < 0 || stream_id > s->nb_streams - 1)
|
|
return -1;
|
|
cnt = 0;
|
|
for (stream_index = 0; stream_index < s->nb_streams; stream_index++) {
|
|
if (s->streams[stream_index]->codecpar->codec_type != codec_type)
|
|
continue;
|
|
if (cnt == stream_id)
|
|
return stream_index;
|
|
cnt++;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static int parse_variant_stream_mapstring(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
VariantStream *vs;
|
|
int stream_index, i, j;
|
|
enum AVMediaType codec_type;
|
|
int nb_varstreams = 0, nb_streams;
|
|
char *p, *q, *saveptr1, *saveptr2, *varstr, *keyval;
|
|
const char *val;
|
|
|
|
/**
|
|
* Expected format for var_stream_map string is as below:
|
|
* "a:0,v:0 a:1,v:1"
|
|
* "a:0,agroup:a0,default:1,language:ENG a:1,agroup:a1,default:0 v:0,agroup:a0 v:1,agroup:a1"
|
|
* This string specifies how to group the audio, video and subtitle streams
|
|
* into different variant streams. The variant stream groups are separated
|
|
* by space.
|
|
*
|
|
* a:, v:, s: are keys to specify audio, video and subtitle streams
|
|
* respectively. Allowed values are 0 to 9 digits (limited just based on
|
|
* practical usage)
|
|
*
|
|
* agroup: is key to specify audio group. A string can be given as value.
|
|
* sgroup: is key to specify subtitle group. A string can be given as value.
|
|
*/
|
|
p = av_strdup(hls->var_stream_map);
|
|
if (!p)
|
|
return AVERROR(ENOMEM);
|
|
|
|
q = p;
|
|
while (av_strtok(q, " \t", &saveptr1)) {
|
|
q = NULL;
|
|
nb_varstreams++;
|
|
}
|
|
av_freep(&p);
|
|
|
|
hls->var_streams = av_mallocz(sizeof(*hls->var_streams) * nb_varstreams);
|
|
if (!hls->var_streams)
|
|
return AVERROR(ENOMEM);
|
|
hls->nb_varstreams = nb_varstreams;
|
|
|
|
p = hls->var_stream_map;
|
|
nb_varstreams = 0;
|
|
while (varstr = av_strtok(p, " \t", &saveptr1)) {
|
|
p = NULL;
|
|
|
|
if (nb_varstreams < hls->nb_varstreams) {
|
|
vs = &(hls->var_streams[nb_varstreams]);
|
|
vs->var_stream_idx = nb_varstreams;
|
|
vs->is_default = 0;
|
|
nb_varstreams++;
|
|
} else
|
|
return AVERROR(EINVAL);
|
|
|
|
q = varstr;
|
|
while (1) {
|
|
if (!av_strncasecmp(q, "a:", 2) || !av_strncasecmp(q, "v:", 2) ||
|
|
!av_strncasecmp(q, "s:", 2))
|
|
vs->nb_streams++;
|
|
q = strchr(q, ',');
|
|
if (!q)
|
|
break;
|
|
q++;
|
|
}
|
|
vs->streams = av_mallocz(sizeof(AVStream *) * vs->nb_streams);
|
|
if (!vs->streams)
|
|
return AVERROR(ENOMEM);
|
|
|
|
nb_streams = 0;
|
|
while (keyval = av_strtok(varstr, ",", &saveptr2)) {
|
|
int64_t num;
|
|
char *end;
|
|
varstr = NULL;
|
|
if (av_strstart(keyval, "language:", &val)) {
|
|
vs->language = val;
|
|
continue;
|
|
} else if (av_strstart(keyval, "default:", &val)) {
|
|
vs->is_default = (!av_strncasecmp(val, "YES", strlen("YES")) ||
|
|
(!av_strncasecmp(val, "1", strlen("1"))));
|
|
hls->has_default_key = 1;
|
|
continue;
|
|
} else if (av_strstart(keyval, "name:", &val)) {
|
|
vs->varname = val;
|
|
continue;
|
|
} else if (av_strstart(keyval, "agroup:", &val)) {
|
|
vs->agroup = val;
|
|
continue;
|
|
} else if (av_strstart(keyval, "sgroup:", &val)) {
|
|
vs->sgroup = val;
|
|
continue;
|
|
} else if (av_strstart(keyval, "ccgroup:", &val)) {
|
|
vs->ccgroup = val;
|
|
continue;
|
|
} else if (av_strstart(keyval, "v:", &val)) {
|
|
codec_type = AVMEDIA_TYPE_VIDEO;
|
|
hls->has_video_m3u8 = 1;
|
|
} else if (av_strstart(keyval, "a:", &val)) {
|
|
codec_type = AVMEDIA_TYPE_AUDIO;
|
|
} else if (av_strstart(keyval, "s:", &val)) {
|
|
codec_type = AVMEDIA_TYPE_SUBTITLE;
|
|
} else {
|
|
av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
num = strtoll(val, &end, 10);
|
|
if (!av_isdigit(*val) || *end != '\0') {
|
|
av_log(s, AV_LOG_ERROR, "Invalid stream number: '%s'\n", val);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
stream_index = get_nth_codec_stream_index(s, codec_type, num);
|
|
|
|
if (stream_index >= 0 && nb_streams < vs->nb_streams) {
|
|
for (i = 0; nb_streams > 0 && i < nb_streams; i++) {
|
|
if (vs->streams[i] == s->streams[stream_index]) {
|
|
av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once inside "
|
|
"variant definition #%d\n", nb_varstreams - 1);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
for (j = 0; nb_varstreams > 1 && j < nb_varstreams - 1; j++) {
|
|
for (i = 0; i < hls->var_streams[j].nb_streams; i++) {
|
|
if (hls->var_streams[j].streams[i] == s->streams[stream_index]) {
|
|
av_log(s, AV_LOG_ERROR, "Same elementary stream found more than once "
|
|
"in two different variant definitions #%d and #%d\n",
|
|
j, nb_varstreams - 1);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
}
|
|
vs->streams[nb_streams++] = s->streams[stream_index];
|
|
} else {
|
|
av_log(s, AV_LOG_ERROR, "Unable to map stream at %s\n", keyval);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
}
|
|
av_log(s, AV_LOG_DEBUG, "Number of variant streams %d\n",
|
|
hls->nb_varstreams);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_cc_stream_mapstring(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int nb_ccstreams = 0;
|
|
char *p, *q, *ccstr, *keyval;
|
|
char *saveptr1 = NULL, *saveptr2 = NULL;
|
|
const char *val;
|
|
ClosedCaptionsStream *ccs;
|
|
|
|
p = av_strdup(hls->cc_stream_map);
|
|
if(!p)
|
|
return AVERROR(ENOMEM);
|
|
|
|
q = p;
|
|
while (av_strtok(q, " \t", &saveptr1)) {
|
|
q = NULL;
|
|
nb_ccstreams++;
|
|
}
|
|
av_freep(&p);
|
|
|
|
hls->cc_streams = av_mallocz(sizeof(*hls->cc_streams) * nb_ccstreams);
|
|
if (!hls->cc_streams)
|
|
return AVERROR(ENOMEM);
|
|
hls->nb_ccstreams = nb_ccstreams;
|
|
|
|
p = hls->cc_stream_map;
|
|
nb_ccstreams = 0;
|
|
while (ccstr = av_strtok(p, " \t", &saveptr1)) {
|
|
p = NULL;
|
|
|
|
if (nb_ccstreams < hls->nb_ccstreams)
|
|
ccs = &(hls->cc_streams[nb_ccstreams++]);
|
|
else
|
|
return AVERROR(EINVAL);
|
|
|
|
while (keyval = av_strtok(ccstr, ",", &saveptr2)) {
|
|
ccstr = NULL;
|
|
|
|
if (av_strstart(keyval, "ccgroup:", &val)) {
|
|
ccs->ccgroup = val;
|
|
} else if (av_strstart(keyval, "instreamid:", &val)) {
|
|
ccs->instreamid = val;
|
|
} else if (av_strstart(keyval, "language:", &val)) {
|
|
ccs->language = val;
|
|
} else {
|
|
av_log(s, AV_LOG_ERROR, "Invalid keyval %s\n", keyval);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
|
|
if (!ccs->ccgroup || !ccs->instreamid) {
|
|
av_log(s, AV_LOG_ERROR, "Insufficient parameters in cc stream map string\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (av_strstart(ccs->instreamid, "CC", &val)) {
|
|
if (atoi(val) < 1 || atoi(val) > 4) {
|
|
av_log(s, AV_LOG_ERROR, "Invalid instream ID CC index %d in %s, range 1-4\n",
|
|
atoi(val), ccs->instreamid);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
} else if (av_strstart(ccs->instreamid, "SERVICE", &val)) {
|
|
if (atoi(val) < 1 || atoi(val) > 63) {
|
|
av_log(s, AV_LOG_ERROR, "Invalid instream ID SERVICE index %d in %s, range 1-63 \n",
|
|
atoi(val), ccs->instreamid);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
} else {
|
|
av_log(s, AV_LOG_ERROR, "Invalid instream ID %s, supported are CCn or SERVICEn\n",
|
|
ccs->instreamid);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int update_variant_stream_info(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
unsigned int i;
|
|
int ret = 0;
|
|
|
|
if (hls->cc_stream_map) {
|
|
ret = parse_cc_stream_mapstring(s);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (hls->var_stream_map) {
|
|
return parse_variant_stream_mapstring(s);
|
|
} else {
|
|
//By default, a single variant stream with all the codec streams is created
|
|
hls->var_streams = av_mallocz(sizeof(*hls->var_streams));
|
|
if (!hls->var_streams)
|
|
return AVERROR(ENOMEM);
|
|
hls->nb_varstreams = 1;
|
|
|
|
hls->var_streams[0].var_stream_idx = 0;
|
|
hls->var_streams[0].nb_streams = s->nb_streams;
|
|
hls->var_streams[0].streams = av_mallocz(sizeof(AVStream *) *
|
|
hls->var_streams[0].nb_streams);
|
|
if (!hls->var_streams[0].streams)
|
|
return AVERROR(ENOMEM);
|
|
|
|
//by default, the first available ccgroup is mapped to the variant stream
|
|
if (hls->nb_ccstreams)
|
|
hls->var_streams[0].ccgroup = hls->cc_streams[0].ccgroup;
|
|
|
|
for (i = 0; i < s->nb_streams; i++)
|
|
hls->var_streams[0].streams[i] = s->streams[i];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int update_master_pl_info(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
const char *dir;
|
|
char *fn1= NULL, *fn2 = NULL;
|
|
int ret = 0;
|
|
|
|
fn1 = av_strdup(s->url);
|
|
if (!fn1)
|
|
return AVERROR(ENOMEM);
|
|
dir = av_dirname(fn1);
|
|
|
|
/**
|
|
* if output file's directory has %v, variants are created in sub-directories
|
|
* then master is created at the sub-directories level
|
|
*/
|
|
if (dir && av_stristr(av_basename(dir), "%v")) {
|
|
fn2 = av_strdup(dir);
|
|
if (!fn2) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
dir = av_dirname(fn2);
|
|
}
|
|
|
|
if (dir && strcmp(dir, "."))
|
|
hls->master_m3u8_url = av_append_path_component(dir, hls->master_pl_name);
|
|
else
|
|
hls->master_m3u8_url = av_strdup(hls->master_pl_name);
|
|
|
|
if (!hls->master_m3u8_url) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
fail:
|
|
av_freep(&fn1);
|
|
av_freep(&fn2);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hls_write_header(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int ret, i, j;
|
|
VariantStream *vs = NULL;
|
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
vs = &hls->var_streams[i];
|
|
|
|
ret = avformat_write_header(vs->avf, NULL);
|
|
if (ret < 0)
|
|
return ret;
|
|
//av_assert0(s->nb_streams == hls->avf->nb_streams);
|
|
for (j = 0; j < vs->nb_streams; j++) {
|
|
AVStream *inner_st;
|
|
AVStream *outer_st = vs->streams[j];
|
|
|
|
if (hls->max_seg_size > 0) {
|
|
if ((outer_st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
|
|
(outer_st->codecpar->bit_rate > hls->max_seg_size)) {
|
|
av_log(s, AV_LOG_WARNING, "Your video bitrate is bigger than hls_segment_size, "
|
|
"(%"PRId64 " > %"PRId64 "), the result maybe not be what you want.",
|
|
outer_st->codecpar->bit_rate, hls->max_seg_size);
|
|
}
|
|
}
|
|
|
|
if (outer_st->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE)
|
|
inner_st = vs->avf->streams[j];
|
|
else if (vs->vtt_avf)
|
|
inner_st = vs->vtt_avf->streams[0];
|
|
else {
|
|
/* We have a subtitle stream, when the user does not want one */
|
|
inner_st = NULL;
|
|
continue;
|
|
}
|
|
avpriv_set_pts_info(outer_st, inner_st->pts_wrap_bits, inner_st->time_base.num, inner_st->time_base.den);
|
|
if (outer_st->codecpar->codec_id == AV_CODEC_ID_HEVC &&
|
|
outer_st->codecpar->codec_tag != MKTAG('h','v','c','1')) {
|
|
av_log(s, AV_LOG_WARNING, "Stream HEVC is not hvc1, you should use tag:v hvc1 to set it.\n");
|
|
}
|
|
write_codec_attr(outer_st, vs);
|
|
|
|
}
|
|
/* Update the Codec Attr string for the mapped audio groups */
|
|
if (vs->has_video && vs->agroup) {
|
|
for (j = 0; j < hls->nb_varstreams; j++) {
|
|
VariantStream *vs_agroup = &(hls->var_streams[j]);
|
|
if (!vs_agroup->has_video && !vs_agroup->has_subtitle &&
|
|
vs_agroup->agroup &&
|
|
!av_strcasecmp(vs_agroup->agroup, vs->agroup)) {
|
|
write_codec_attr(vs_agroup->streams[0], vs);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hls_init_file_resend(AVFormatContext *s, VariantStream *vs)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
AVDictionary *options = NULL;
|
|
int ret = 0;
|
|
|
|
set_http_options(s, &options, hls);
|
|
ret = hlsenc_io_open(s, &vs->out, vs->base_output_dirname, &options);
|
|
av_dict_free(&options);
|
|
if (ret < 0)
|
|
return ret;
|
|
avio_write(vs->out, vs->init_buffer, vs->init_range_length);
|
|
hlsenc_io_close(s, &vs->out, hls->fmp4_init_filename);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int64_t append_single_file(AVFormatContext *s, VariantStream *vs)
|
|
{
|
|
int ret = 0;
|
|
int64_t read_byte = 0;
|
|
int64_t total_size = 0;
|
|
char *filename = NULL;
|
|
char buf[BUFSIZE];
|
|
AVFormatContext *oc = vs->avf;
|
|
|
|
hlsenc_io_close(s, &vs->out, vs->basename_tmp);
|
|
filename = av_asprintf("%s.tmp", oc->url);
|
|
ret = s->io_open(s, &vs->out, filename, AVIO_FLAG_READ, NULL);
|
|
if (ret < 0) {
|
|
av_free(filename);
|
|
return ret;
|
|
}
|
|
|
|
do {
|
|
memset(buf, 0, sizeof(BUFSIZE));
|
|
read_byte = avio_read(vs->out, buf, BUFSIZE);
|
|
avio_write(vs->out_single_file, buf, read_byte);
|
|
if (read_byte > 0) {
|
|
total_size += read_byte;
|
|
ret = total_size;
|
|
}
|
|
} while (read_byte > 0);
|
|
|
|
hlsenc_io_close(s, &vs->out, filename);
|
|
av_free(filename);
|
|
|
|
return ret;
|
|
}
|
|
static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
AVFormatContext *oc = NULL;
|
|
AVStream *st = s->streams[pkt->stream_index];
|
|
int64_t end_pts = 0;
|
|
int is_ref_pkt = 1;
|
|
int ret = 0, can_split = 1, i, j;
|
|
int stream_index = 0;
|
|
int range_length = 0;
|
|
const char *proto = NULL;
|
|
int use_temp_file = 0;
|
|
VariantStream *vs = NULL;
|
|
char *old_filename = NULL;
|
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
vs = &hls->var_streams[i];
|
|
for (j = 0; j < vs->nb_streams; j++) {
|
|
if (vs->streams[j] == st) {
|
|
if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
|
|
oc = vs->vtt_avf;
|
|
stream_index = 0;
|
|
} else {
|
|
oc = vs->avf;
|
|
stream_index = j;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (oc)
|
|
break;
|
|
}
|
|
|
|
if (!oc) {
|
|
av_log(s, AV_LOG_ERROR, "Unable to find mapping variant stream\n");
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
end_pts = hls->recording_time * vs->number;
|
|
|
|
if (vs->sequence - vs->nb_entries > hls->start_sequence && hls->init_time > 0) {
|
|
/* reset end_pts, hls->recording_time at end of the init hls list */
|
|
int64_t init_list_dur = hls->init_time * vs->nb_entries * AV_TIME_BASE;
|
|
int64_t after_init_list_dur = (vs->sequence - hls->start_sequence - vs->nb_entries) * (hls->time * AV_TIME_BASE);
|
|
hls->recording_time = hls->time * AV_TIME_BASE;
|
|
end_pts = init_list_dur + after_init_list_dur ;
|
|
}
|
|
|
|
if (vs->start_pts == AV_NOPTS_VALUE) {
|
|
vs->start_pts = pkt->pts;
|
|
if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
|
|
vs->start_pts_from_audio = 1;
|
|
}
|
|
if (vs->start_pts_from_audio && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && vs->start_pts > pkt->pts) {
|
|
vs->start_pts = pkt->pts;
|
|
vs->start_pts_from_audio = 0;
|
|
}
|
|
|
|
if (vs->has_video) {
|
|
can_split = st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
|
|
((pkt->flags & AV_PKT_FLAG_KEY) || (hls->flags & HLS_SPLIT_BY_TIME));
|
|
is_ref_pkt = (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->stream_index == vs->reference_stream_index);
|
|
}
|
|
if (pkt->pts == AV_NOPTS_VALUE)
|
|
is_ref_pkt = can_split = 0;
|
|
|
|
if (is_ref_pkt) {
|
|
if (vs->end_pts == AV_NOPTS_VALUE)
|
|
vs->end_pts = pkt->pts;
|
|
if (vs->new_start) {
|
|
vs->new_start = 0;
|
|
vs->duration = (double)(pkt->pts - vs->end_pts)
|
|
* st->time_base.num / st->time_base.den;
|
|
vs->dpp = (double)(pkt->duration) * st->time_base.num / st->time_base.den;
|
|
} else {
|
|
if (pkt->duration) {
|
|
vs->duration += (double)(pkt->duration) * st->time_base.num / st->time_base.den;
|
|
} else {
|
|
av_log(s, AV_LOG_WARNING, "pkt->duration = 0, maybe the hls segment duration will not precise\n");
|
|
vs->duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
|
|
}
|
|
}
|
|
}
|
|
|
|
can_split = can_split && (pkt->pts - vs->end_pts > 0);
|
|
if (vs->packets_written && can_split && av_compare_ts(pkt->pts - vs->start_pts, st->time_base,
|
|
end_pts, AV_TIME_BASE_Q) >= 0) {
|
|
int64_t new_start_pos;
|
|
int byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
|
|
av_write_frame(oc, NULL); /* Flush any buffered data */
|
|
new_start_pos = avio_tell(oc->pb);
|
|
vs->size = new_start_pos - vs->start_pos;
|
|
avio_flush(oc->pb);
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
if (!vs->init_range_length) {
|
|
range_length = avio_close_dyn_buf(oc->pb, &vs->init_buffer);
|
|
if (range_length <= 0)
|
|
return AVERROR(EINVAL);
|
|
avio_write(vs->out, vs->init_buffer, range_length);
|
|
if (!hls->resend_init_file)
|
|
av_freep(&vs->init_buffer);
|
|
vs->init_range_length = range_length;
|
|
avio_open_dyn_buf(&oc->pb);
|
|
vs->packets_written = 0;
|
|
vs->start_pos = range_length;
|
|
if (!byterange_mode) {
|
|
hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
|
|
}
|
|
}
|
|
}
|
|
if (!byterange_mode) {
|
|
if (vs->vtt_avf) {
|
|
hlsenc_io_close(s, &vs->vtt_avf->pb, vs->vtt_avf->url);
|
|
}
|
|
}
|
|
|
|
if (hls->flags & HLS_SINGLE_FILE) {
|
|
ret = flush_dynbuf(vs, &range_length);
|
|
av_freep(&vs->temp_buffer);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
vs->size = range_length;
|
|
if (hls->key_info_file || hls->encrypt)
|
|
vs->size = append_single_file(s, vs);
|
|
} else {
|
|
if (oc->url[0]) {
|
|
proto = avio_find_protocol_name(oc->url);
|
|
use_temp_file = proto && !strcmp(proto, "file")
|
|
&& (hls->flags & HLS_TEMP_FILE);
|
|
}
|
|
|
|
if ((hls->max_seg_size > 0 && (vs->size + vs->start_pos >= hls->max_seg_size)) || !byterange_mode) {
|
|
AVDictionary *options = NULL;
|
|
char *filename = NULL;
|
|
if (hls->key_info_file || hls->encrypt) {
|
|
av_dict_set(&options, "encryption_key", vs->key_string, 0);
|
|
av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
|
|
filename = av_asprintf("crypto:%s", oc->url);
|
|
} else {
|
|
filename = av_asprintf("%s", oc->url);
|
|
}
|
|
if (!filename) {
|
|
av_dict_free(&options);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
// look to rename the asset name
|
|
if (use_temp_file)
|
|
av_dict_set(&options, "mpegts_flags", "resend_headers", 0);
|
|
|
|
set_http_options(s, &options, hls);
|
|
|
|
ret = hlsenc_io_open(s, &vs->out, filename, &options);
|
|
if (ret < 0) {
|
|
av_log(s, hls->ignore_io_errors ? AV_LOG_WARNING : AV_LOG_ERROR,
|
|
"Failed to open file '%s'\n", filename);
|
|
av_freep(&filename);
|
|
av_dict_free(&options);
|
|
return hls->ignore_io_errors ? 0 : ret;
|
|
}
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
write_styp(vs->out);
|
|
}
|
|
ret = flush_dynbuf(vs, &range_length);
|
|
if (ret < 0) {
|
|
av_freep(&filename);
|
|
av_dict_free(&options);
|
|
return ret;
|
|
}
|
|
ret = hlsenc_io_close(s, &vs->out, filename);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_WARNING, "upload segment failed,"
|
|
" will retry with a new http session.\n");
|
|
ff_format_io_close(s, &vs->out);
|
|
ret = hlsenc_io_open(s, &vs->out, filename, &options);
|
|
reflush_dynbuf(vs, &range_length);
|
|
ret = hlsenc_io_close(s, &vs->out, filename);
|
|
}
|
|
av_dict_free(&options);
|
|
av_freep(&vs->temp_buffer);
|
|
av_freep(&filename);
|
|
}
|
|
|
|
if (use_temp_file)
|
|
hls_rename_temp_file(s, oc);
|
|
}
|
|
|
|
old_filename = av_strdup(oc->url);
|
|
if (!old_filename) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
if (vs->start_pos || hls->segment_type != SEGMENT_TYPE_FMP4) {
|
|
double cur_duration = (double)(pkt->pts - vs->end_pts) * st->time_base.num / st->time_base.den;
|
|
ret = hls_append_segment(s, hls, vs, cur_duration, vs->start_pos, vs->size);
|
|
vs->end_pts = pkt->pts;
|
|
vs->duration = 0;
|
|
if (ret < 0) {
|
|
av_freep(&old_filename);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
// if we're building a VOD playlist, skip writing the manifest multiple times, and just wait until the end
|
|
if (hls->pl_type != PLAYLIST_TYPE_VOD) {
|
|
if ((ret = hls_window(s, 0, vs)) < 0) {
|
|
av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
|
|
ff_format_io_close(s, &vs->out);
|
|
if ((ret = hls_window(s, 0, vs)) < 0) {
|
|
av_freep(&old_filename);
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (hls->resend_init_file && hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
ret = hls_init_file_resend(s, vs);
|
|
if (ret < 0) {
|
|
av_freep(&old_filename);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (hls->flags & HLS_SINGLE_FILE) {
|
|
vs->start_pos += vs->size;
|
|
if (hls->key_info_file || hls->encrypt)
|
|
ret = hls_start(s, vs);
|
|
} else if (hls->max_seg_size > 0) {
|
|
if (vs->size + vs->start_pos >= hls->max_seg_size) {
|
|
vs->sequence++;
|
|
sls_flag_file_rename(hls, vs, old_filename);
|
|
ret = hls_start(s, vs);
|
|
vs->start_pos = 0;
|
|
/* When split segment by byte, the duration is short than hls_time,
|
|
* so it is not enough one segment duration as hls_time, */
|
|
} else {
|
|
vs->start_pos = new_start_pos;
|
|
}
|
|
} else {
|
|
vs->start_pos = new_start_pos;
|
|
sls_flag_file_rename(hls, vs, old_filename);
|
|
ret = hls_start(s, vs);
|
|
}
|
|
vs->number++;
|
|
av_freep(&old_filename);
|
|
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
}
|
|
|
|
vs->packets_written++;
|
|
if (oc->pb) {
|
|
int64_t keyframe_pre_pos = avio_tell(oc->pb);
|
|
ret = ff_write_chained(oc, stream_index, pkt, s, 0);
|
|
if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
|
|
(pkt->flags & AV_PKT_FLAG_KEY) && !keyframe_pre_pos) {
|
|
av_write_frame(oc, NULL); /* Flush any buffered data */
|
|
vs->video_keyframe_size = avio_tell(oc->pb) - keyframe_pre_pos;
|
|
}
|
|
vs->video_keyframe_pos = vs->start_pos;
|
|
if (hls->ignore_io_errors)
|
|
ret = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void hls_deinit(AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
int i = 0;
|
|
VariantStream *vs = NULL;
|
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
vs = &hls->var_streams[i];
|
|
|
|
av_freep(&vs->basename);
|
|
av_freep(&vs->base_output_dirname);
|
|
av_freep(&vs->fmp4_init_filename);
|
|
av_freep(&vs->vtt_basename);
|
|
av_freep(&vs->vtt_m3u8_name);
|
|
|
|
avformat_free_context(vs->vtt_avf);
|
|
avformat_free_context(vs->avf);
|
|
if (hls->resend_init_file)
|
|
av_freep(&vs->init_buffer);
|
|
hls_free_segments(vs->segments);
|
|
hls_free_segments(vs->old_segments);
|
|
av_freep(&vs->m3u8_name);
|
|
av_freep(&vs->streams);
|
|
}
|
|
|
|
ff_format_io_close(s, &hls->m3u8_out);
|
|
ff_format_io_close(s, &hls->sub_m3u8_out);
|
|
av_freep(&hls->key_basename);
|
|
av_freep(&hls->var_streams);
|
|
av_freep(&hls->cc_streams);
|
|
av_freep(&hls->master_m3u8_url);
|
|
}
|
|
|
|
static int hls_write_trailer(struct AVFormatContext *s)
|
|
{
|
|
HLSContext *hls = s->priv_data;
|
|
AVFormatContext *oc = NULL;
|
|
AVFormatContext *vtt_oc = NULL;
|
|
char *old_filename = NULL;
|
|
const char *proto = NULL;
|
|
int use_temp_file = 0;
|
|
int i;
|
|
int ret = 0;
|
|
VariantStream *vs = NULL;
|
|
AVDictionary *options = NULL;
|
|
int range_length, byterange_mode;
|
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
char *filename = NULL;
|
|
vs = &hls->var_streams[i];
|
|
oc = vs->avf;
|
|
vtt_oc = vs->vtt_avf;
|
|
old_filename = av_strdup(oc->url);
|
|
use_temp_file = 0;
|
|
|
|
if (!old_filename) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if (hls->key_info_file || hls->encrypt) {
|
|
av_dict_set(&options, "encryption_key", vs->key_string, 0);
|
|
av_dict_set(&options, "encryption_iv", vs->iv_string, 0);
|
|
filename = av_asprintf("crypto:%s", oc->url);
|
|
} else {
|
|
filename = av_asprintf("%s", oc->url);
|
|
}
|
|
if (!filename) {
|
|
av_freep(&old_filename);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
int range_length = 0;
|
|
if (!vs->init_range_length) {
|
|
uint8_t *buffer = NULL;
|
|
av_write_frame(oc, NULL); /* Flush any buffered data */
|
|
|
|
range_length = avio_close_dyn_buf(oc->pb, &buffer);
|
|
avio_write(vs->out, buffer, range_length);
|
|
av_freep(&buffer);
|
|
vs->init_range_length = range_length;
|
|
avio_open_dyn_buf(&oc->pb);
|
|
vs->packets_written = 0;
|
|
vs->start_pos = range_length;
|
|
byterange_mode = (hls->flags & HLS_SINGLE_FILE) || (hls->max_seg_size > 0);
|
|
if (!byterange_mode) {
|
|
ff_format_io_close(s, &vs->out);
|
|
hlsenc_io_close(s, &vs->out, vs->base_output_dirname);
|
|
}
|
|
}
|
|
}
|
|
if (!(hls->flags & HLS_SINGLE_FILE)) {
|
|
set_http_options(s, &options, hls);
|
|
ret = hlsenc_io_open(s, &vs->out, filename, &options);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
|
|
goto failed;
|
|
}
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4)
|
|
write_styp(vs->out);
|
|
}
|
|
ret = flush_dynbuf(vs, &range_length);
|
|
if (ret < 0)
|
|
goto failed;
|
|
|
|
vs->size = range_length;
|
|
ret = hlsenc_io_close(s, &vs->out, filename);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_WARNING, "upload segment failed, will retry with a new http session.\n");
|
|
ff_format_io_close(s, &vs->out);
|
|
ret = hlsenc_io_open(s, &vs->out, filename, &options);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Failed to open file '%s'\n", oc->url);
|
|
goto failed;
|
|
}
|
|
reflush_dynbuf(vs, &range_length);
|
|
ret = hlsenc_io_close(s, &vs->out, filename);
|
|
if (ret < 0)
|
|
av_log(s, AV_LOG_WARNING, "Failed to upload file '%s' at the end.\n", oc->url);
|
|
}
|
|
if (hls->flags & HLS_SINGLE_FILE) {
|
|
if (hls->key_info_file || hls->encrypt) {
|
|
vs->size = append_single_file(s, vs);
|
|
}
|
|
hlsenc_io_close(s, &vs->out_single_file, vs->basename);
|
|
}
|
|
failed:
|
|
av_freep(&vs->temp_buffer);
|
|
av_dict_free(&options);
|
|
av_freep(&filename);
|
|
av_write_trailer(oc);
|
|
if (oc->url[0]) {
|
|
proto = avio_find_protocol_name(oc->url);
|
|
use_temp_file = proto && !strcmp(proto, "file") && (hls->flags & HLS_TEMP_FILE);
|
|
}
|
|
|
|
// rename that segment from .tmp to the real one
|
|
if (use_temp_file && !(hls->flags & HLS_SINGLE_FILE)) {
|
|
hls_rename_temp_file(s, oc);
|
|
av_freep(&old_filename);
|
|
old_filename = av_strdup(oc->url);
|
|
|
|
if (!old_filename) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
|
|
/* after av_write_trailer, then duration + 1 duration per packet */
|
|
hls_append_segment(s, hls, vs, vs->duration + vs->dpp, vs->start_pos, vs->size);
|
|
|
|
sls_flag_file_rename(hls, vs, old_filename);
|
|
|
|
if (vtt_oc) {
|
|
if (vtt_oc->pb)
|
|
av_write_trailer(vtt_oc);
|
|
vs->size = avio_tell(vs->vtt_avf->pb) - vs->start_pos;
|
|
ff_format_io_close(s, &vtt_oc->pb);
|
|
}
|
|
ret = hls_window(s, 1, vs);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_WARNING, "upload playlist failed, will retry with a new http session.\n");
|
|
ff_format_io_close(s, &vs->out);
|
|
hls_window(s, 1, vs);
|
|
}
|
|
ffio_free_dyn_buf(&oc->pb);
|
|
|
|
av_free(old_filename);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int hls_init(AVFormatContext *s)
|
|
{
|
|
int ret = 0;
|
|
int i = 0;
|
|
int j = 0;
|
|
HLSContext *hls = s->priv_data;
|
|
const char *pattern;
|
|
VariantStream *vs = NULL;
|
|
const char *vtt_pattern = hls->flags & HLS_SINGLE_FILE ? ".vtt" : "%d.vtt";
|
|
char *p = NULL;
|
|
int http_base_proto = ff_is_http_proto(s->url);
|
|
int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
|
|
double initial_program_date_time = av_gettime() / 1000000.0;
|
|
|
|
if (hls->use_localtime) {
|
|
pattern = get_default_pattern_localtime_fmt(s);
|
|
} else {
|
|
pattern = hls->segment_type == SEGMENT_TYPE_FMP4 ? "%d.m4s" : "%d.ts";
|
|
if (hls->flags & HLS_SINGLE_FILE)
|
|
pattern += 2;
|
|
}
|
|
|
|
hls->has_default_key = 0;
|
|
hls->has_video_m3u8 = 0;
|
|
ret = update_variant_stream_info(s);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Variant stream info update failed with status %x\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
if (!hls->method && http_base_proto) {
|
|
av_log(hls, AV_LOG_WARNING, "No HTTP method set, hls muxer defaulting to method PUT.\n");
|
|
}
|
|
|
|
ret = validate_name(hls->nb_varstreams, s->url);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (hls->segment_filename) {
|
|
ret = validate_name(hls->nb_varstreams, hls->segment_filename);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (av_strcasecmp(hls->fmp4_init_filename, "init.mp4")) {
|
|
ret = validate_name(hls->nb_varstreams, hls->fmp4_init_filename);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (hls->subtitle_filename) {
|
|
ret = validate_name(hls->nb_varstreams, hls->subtitle_filename);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (hls->master_pl_name) {
|
|
ret = update_master_pl_info(s);
|
|
if (ret < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Master stream info update failed with status %x\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if ((hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) ||
|
|
(hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH) ||
|
|
(hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME)) {
|
|
time_t t = time(NULL);
|
|
if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH) {
|
|
hls->start_sequence = av_gettime();
|
|
} else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH) {
|
|
hls->start_sequence = (int64_t)t;
|
|
} else if (hls->start_sequence_source_type == HLS_START_SEQUENCE_AS_FORMATTED_DATETIME) {
|
|
char b[15];
|
|
struct tm *p, tmbuf;
|
|
if (!(p = localtime_r(&t, &tmbuf)))
|
|
return AVERROR(errno);
|
|
if (!strftime(b, sizeof(b), "%Y%m%d%H%M%S", p))
|
|
return AVERROR(ENOMEM);
|
|
hls->start_sequence = strtoll(b, NULL, 10);
|
|
}
|
|
av_log(hls, AV_LOG_DEBUG, "start_number evaluated to %"PRId64"\n", hls->start_sequence);
|
|
}
|
|
|
|
hls->recording_time = (hls->init_time ? hls->init_time : hls->time) * AV_TIME_BASE;
|
|
|
|
if (hls->flags & HLS_SPLIT_BY_TIME && hls->flags & HLS_INDEPENDENT_SEGMENTS) {
|
|
// Independent segments cannot be guaranteed when splitting by time
|
|
hls->flags &= ~HLS_INDEPENDENT_SEGMENTS;
|
|
av_log(s, AV_LOG_WARNING,
|
|
"'split_by_time' and 'independent_segments' cannot be "
|
|
"enabled together. Disabling 'independent_segments' flag\n");
|
|
}
|
|
|
|
for (i = 0; i < hls->nb_varstreams; i++) {
|
|
vs = &hls->var_streams[i];
|
|
|
|
ret = format_name(s->url, &vs->m3u8_name, i, vs->varname);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
vs->sequence = hls->start_sequence;
|
|
vs->start_pts = AV_NOPTS_VALUE;
|
|
vs->end_pts = AV_NOPTS_VALUE;
|
|
vs->current_segment_final_filename_fmt[0] = '\0';
|
|
vs->initial_prog_date_time = initial_program_date_time;
|
|
|
|
for (j = 0; j < vs->nb_streams; j++) {
|
|
vs->has_video += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO;
|
|
/* Get one video stream to reference for split segments
|
|
* so use the first video stream index. */
|
|
if ((vs->has_video == 1) && (vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)) {
|
|
vs->reference_stream_index = vs->streams[j]->index;
|
|
}
|
|
vs->has_subtitle += vs->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE;
|
|
}
|
|
|
|
if (vs->has_video > 1)
|
|
av_log(s, AV_LOG_WARNING, "More than a single video stream present, expect issues decoding it.\n");
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
vs->oformat = av_guess_format("mp4", NULL, NULL);
|
|
} else {
|
|
vs->oformat = av_guess_format("mpegts", NULL, NULL);
|
|
}
|
|
if (!vs->oformat)
|
|
return AVERROR_MUXER_NOT_FOUND;
|
|
|
|
if (hls->segment_filename) {
|
|
ret = format_name(hls->segment_filename, &vs->basename, i, vs->varname);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
p = strrchr(vs->m3u8_name, '.');
|
|
if (p)
|
|
*p = '\0';
|
|
|
|
vs->basename = av_asprintf("%s%s", vs->m3u8_name, pattern);
|
|
if (!vs->basename)
|
|
return AVERROR(ENOMEM);
|
|
|
|
if (p)
|
|
*p = '.';
|
|
}
|
|
|
|
if (hls->segment_type == SEGMENT_TYPE_FMP4) {
|
|
if (hls->nb_varstreams > 1)
|
|
fmp4_init_filename_len += strlen(POSTFIX_PATTERN);
|
|
if (hls->flags & HLS_SINGLE_FILE) {
|
|
vs->fmp4_init_filename = av_strdup(vs->basename);
|
|
if (!vs->fmp4_init_filename)
|
|
return AVERROR(ENOMEM);
|
|
} else {
|
|
vs->fmp4_init_filename = av_malloc(fmp4_init_filename_len);
|
|
if (!vs->fmp4_init_filename)
|
|
return AVERROR(ENOMEM);
|
|
av_strlcpy(vs->fmp4_init_filename, hls->fmp4_init_filename,
|
|
fmp4_init_filename_len);
|
|
if (hls->nb_varstreams > 1) {
|
|
if (av_stristr(vs->fmp4_init_filename, "%v")) {
|
|
av_freep(&vs->fmp4_init_filename);
|
|
ret = format_name(hls->fmp4_init_filename,
|
|
&vs->fmp4_init_filename, i, vs->varname);
|
|
} else {
|
|
ret = append_postfix(vs->fmp4_init_filename, fmp4_init_filename_len, i);
|
|
}
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
p = strrchr(vs->m3u8_name, '/');
|
|
if (p) {
|
|
char tmp = *(++p);
|
|
*p = '\0';
|
|
vs->base_output_dirname = av_asprintf("%s%s", vs->m3u8_name,
|
|
vs->fmp4_init_filename);
|
|
*p = tmp;
|
|
} else {
|
|
vs->base_output_dirname = av_strdup(vs->fmp4_init_filename);
|
|
}
|
|
if (!vs->base_output_dirname)
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
}
|
|
|
|
ret = hls->use_localtime ? sls_flag_check_duration_size(hls, vs) : sls_flag_check_duration_size_index(hls);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (vs->has_subtitle) {
|
|
vs->vtt_oformat = av_guess_format("webvtt", NULL, NULL);
|
|
if (!vs->vtt_oformat)
|
|
return AVERROR_MUXER_NOT_FOUND;
|
|
|
|
p = strrchr(vs->m3u8_name, '.');
|
|
if (p)
|
|
*p = '\0';
|
|
|
|
vs->vtt_basename = av_asprintf("%s%s", vs->m3u8_name, vtt_pattern);
|
|
if (!vs->vtt_basename)
|
|
return AVERROR(ENOMEM);
|
|
|
|
if (hls->subtitle_filename) {
|
|
ret = format_name(hls->subtitle_filename, &vs->vtt_m3u8_name, i, vs->varname);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
vs->vtt_m3u8_name = av_asprintf("%s_vtt.m3u8", vs->m3u8_name);
|
|
if (!vs->vtt_m3u8_name)
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
if (p)
|
|
*p = '.';
|
|
}
|
|
|
|
if ((ret = hls_mux_init(s, vs)) < 0)
|
|
return ret;
|
|
|
|
if (hls->flags & HLS_APPEND_LIST) {
|
|
parse_playlist(s, vs->m3u8_name, vs);
|
|
vs->discontinuity = 1;
|
|
if (hls->init_time > 0) {
|
|
av_log(s, AV_LOG_WARNING, "append_list mode does not support hls_init_time,"
|
|
" hls_init_time value will have no effect\n");
|
|
hls->init_time = 0;
|
|
hls->recording_time = hls->time * AV_TIME_BASE;
|
|
}
|
|
}
|
|
|
|
if ((ret = hls_start(s, vs)) < 0)
|
|
return ret;
|
|
vs->number++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(HLSContext, x)
|
|
#define E AV_OPT_FLAG_ENCODING_PARAM
|
|
static const AVOption options[] = {
|
|
{"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
|
|
{"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
|
|
{"hls_init_time", "set segment length in seconds at init list", OFFSET(init_time), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0, FLT_MAX, E},
|
|
{"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
|
|
{"hls_delete_threshold", "set number of unreferenced segments to keep before deleting", OFFSET(hls_delete_threshold), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, E},
|
|
{"hls_ts_options","set hls mpegts list of options for the container format used for hls", OFFSET(format_options), AV_OPT_TYPE_DICT, {.str = NULL}, 0, 0, E},
|
|
{"hls_vtt_options","set hls vtt list of options for the container format used for hls", OFFSET(vtt_format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
#if FF_API_HLS_WRAP
|
|
{"hls_wrap", "set number after which the index wraps (will be deprecated)", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
|
|
#endif
|
|
{"hls_allow_cache", "explicitly set whether the client MAY (1) or MUST NOT (0) cache media segments", OFFSET(allowcache), AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX, E},
|
|
{"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_segment_size", "maximum size per segment file, (in bytes)", OFFSET(max_seg_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
|
|
{"hls_key_info_file", "file with key URI and key file path", OFFSET(key_info_file), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_enc", "enable AES128 encryption support", OFFSET(encrypt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, E},
|
|
{"hls_enc_key", "hex-coded 16 byte key to encrypt the segments", OFFSET(key), AV_OPT_TYPE_STRING, .flags = E},
|
|
{"hls_enc_key_url", "url to access the key to decrypt the segments", OFFSET(key_url), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_enc_iv", "hex-coded 16 byte initialization vector", OFFSET(iv), AV_OPT_TYPE_STRING, .flags = E},
|
|
{"hls_subtitle_path", "set path of hls subtitles", OFFSET(subtitle_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_segment_type", "set hls segment files type", OFFSET(segment_type), AV_OPT_TYPE_INT, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, SEGMENT_TYPE_FMP4, E, "segment_type"},
|
|
{"mpegts", "make segment file to mpegts files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MPEGTS }, 0, UINT_MAX, E, "segment_type"},
|
|
{"fmp4", "make segment file to fragment mp4 files in m3u8", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_FMP4 }, 0, UINT_MAX, E, "segment_type"},
|
|
{"hls_fmp4_init_filename", "set fragment mp4 file init filename", OFFSET(fmp4_init_filename), AV_OPT_TYPE_STRING, {.str = "init.mp4"}, 0, 0, E},
|
|
{"hls_fmp4_init_resend", "resend fragment mp4 init file after refresh m3u8 every time", OFFSET(resend_init_file), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
|
|
{"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
|
|
{"single_file", "generate a single media file indexed with byte ranges", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SINGLE_FILE }, 0, UINT_MAX, E, "flags"},
|
|
{"temp_file", "write segment and playlist to temporary file and rename when complete", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_TEMP_FILE }, 0, UINT_MAX, E, "flags"},
|
|
{"delete_segments", "delete segment files that are no longer part of the playlist", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DELETE_SEGMENTS }, 0, UINT_MAX, E, "flags"},
|
|
{"round_durations", "round durations in m3u8 to whole numbers", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_ROUND_DURATIONS }, 0, UINT_MAX, E, "flags"},
|
|
{"discont_start", "start the playlist with a discontinuity tag", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_DISCONT_START }, 0, UINT_MAX, E, "flags"},
|
|
{"omit_endlist", "Do not append an endlist when ending stream", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_OMIT_ENDLIST }, 0, UINT_MAX, E, "flags"},
|
|
{"split_by_time", "split the hls segment by time which user set by hls_time", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SPLIT_BY_TIME }, 0, UINT_MAX, E, "flags"},
|
|
{"append_list", "append the new segments into old hls segment list", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_APPEND_LIST }, 0, UINT_MAX, E, "flags"},
|
|
{"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
|
|
{"second_level_segment_index", "include segment index in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_INDEX }, 0, UINT_MAX, E, "flags"},
|
|
{"second_level_segment_duration", "include segment duration in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_DURATION }, 0, UINT_MAX, E, "flags"},
|
|
{"second_level_segment_size", "include segment size in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_SIZE }, 0, UINT_MAX, E, "flags"},
|
|
{"periodic_rekey", "reload keyinfo file periodically for re-keying", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PERIODIC_REKEY }, 0, UINT_MAX, E, "flags"},
|
|
{"independent_segments", "add EXT-X-INDEPENDENT-SEGMENTS, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_INDEPENDENT_SEGMENTS }, 0, UINT_MAX, E, "flags"},
|
|
{"iframes_only", "add EXT-X-I-FRAMES-ONLY, whenever applicable", 0, AV_OPT_TYPE_CONST, { .i64 = HLS_I_FRAMES_ONLY }, 0, UINT_MAX, E, "flags"},
|
|
#if FF_API_HLS_USE_LOCALTIME
|
|
{"use_localtime", "set filename expansion with strftime at segment creation(will be deprecated)", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
|
|
#endif
|
|
{"strftime", "set filename expansion with strftime at segment creation", OFFSET(use_localtime), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
|
|
#if FF_API_HLS_USE_LOCALTIME
|
|
{"use_localtime_mkdir", "create last directory component in strftime-generated filename(will be deprecated)", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
|
|
#endif
|
|
{"strftime_mkdir", "create last directory component in strftime-generated filename", OFFSET(use_localtime_mkdir), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
|
|
{"hls_playlist_type", "set the HLS playlist type", OFFSET(pl_type), AV_OPT_TYPE_INT, {.i64 = PLAYLIST_TYPE_NONE }, 0, PLAYLIST_TYPE_NB-1, E, "pl_type" },
|
|
{"event", "EVENT playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_EVENT }, INT_MIN, INT_MAX, E, "pl_type" },
|
|
{"vod", "VOD playlist", 0, AV_OPT_TYPE_CONST, {.i64 = PLAYLIST_TYPE_VOD }, INT_MIN, INT_MAX, E, "pl_type" },
|
|
{"method", "set the HTTP method(default: PUT)", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"hls_start_number_source", "set source of first number in sequence", OFFSET(start_sequence_source_type), AV_OPT_TYPE_INT, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, 0, HLS_START_SEQUENCE_LAST-1, E, "start_sequence_source_type" },
|
|
{"generic", "start_number value (default)", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_START_NUMBER }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
|
|
{"epoch", "seconds since epoch", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_SECONDS_SINCE_EPOCH }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
|
|
{"epoch_us", "microseconds since epoch", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_MICROSECONDS_SINCE_EPOCH }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
|
|
{"datetime", "current datetime as YYYYMMDDhhmmss", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_START_SEQUENCE_AS_FORMATTED_DATETIME }, INT_MIN, INT_MAX, E, "start_sequence_source_type" },
|
|
{"http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"var_stream_map", "Variant stream map string", OFFSET(var_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"cc_stream_map", "Closed captions stream map string", OFFSET(cc_stream_map), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"master_pl_name", "Create HLS master playlist with this name", OFFSET(master_pl_name), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
|
|
{"master_pl_publish_rate", "Publish master play list every after this many segment intervals", OFFSET(master_publish_rate), AV_OPT_TYPE_INT, {.i64 = 0}, 0, UINT_MAX, E},
|
|
{"http_persistent", "Use persistent HTTP connections", OFFSET(http_persistent), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, E },
|
|
{"timeout", "set timeout for socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT_MAX, .flags = E },
|
|
{"ignore_io_errors", "Ignore IO errors for stable long-duration runs with network output", OFFSET(ignore_io_errors), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
|
|
{"headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVClass hls_class = {
|
|
.class_name = "hls muxer",
|
|
.item_name = av_default_item_name,
|
|
.option = options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
|
|
AVOutputFormat ff_hls_muxer = {
|
|
.name = "hls",
|
|
.long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
|
|
.extensions = "m3u8",
|
|
.priv_data_size = sizeof(HLSContext),
|
|
.audio_codec = AV_CODEC_ID_AAC,
|
|
.video_codec = AV_CODEC_ID_H264,
|
|
.subtitle_codec = AV_CODEC_ID_WEBVTT,
|
|
.flags = AVFMT_NOFILE | AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_NODIMENSIONS,
|
|
.init = hls_init,
|
|
.write_header = hls_write_header,
|
|
.write_packet = hls_write_packet,
|
|
.write_trailer = hls_write_trailer,
|
|
.deinit = hls_deinit,
|
|
.priv_class = &hls_class,
|
|
};
|