mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-08-23 18:01:50 +02:00
2476 lines
73 KiB
C
2476 lines
73 KiB
C
/*
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* FFplay : Simple Media Player based on the ffmpeg libraries
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This library 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 of the License, or (at your option) any later version.
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*
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* This library 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 this library; 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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#define HAVE_AV_CONFIG_H
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#include "avformat.h"
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#include "version.h"
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#include "cmdutils.h"
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#include <SDL.h>
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#include <SDL_thread.h>
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#ifdef CONFIG_WIN32
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#undef main /* We don't want SDL to override our main() */
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#endif
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#ifdef CONFIG_OS2
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#define INCL_DOS
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#include <os2.h>
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#include <stdio.h>
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void MorphToPM()
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{
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PPIB pib;
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PTIB tib;
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DosGetInfoBlocks(&tib, &pib);
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// Change flag from VIO to PM:
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if (pib->pib_ultype==2) pib->pib_ultype = 3;
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}
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#endif
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//#define DEBUG_SYNC
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#define MAX_VIDEOQ_SIZE (5 * 256 * 1024)
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#define MAX_AUDIOQ_SIZE (5 * 16 * 1024)
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#define MAX_SUBTITLEQ_SIZE (5 * 16 * 1024)
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/* SDL audio buffer size, in samples. Should be small to have precise
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A/V sync as SDL does not have hardware buffer fullness info. */
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#define SDL_AUDIO_BUFFER_SIZE 1024
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/* no AV sync correction is done if below the AV sync threshold */
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#define AV_SYNC_THRESHOLD 0.01
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/* no AV correction is done if too big error */
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#define AV_NOSYNC_THRESHOLD 10.0
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/* maximum audio speed change to get correct sync */
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#define SAMPLE_CORRECTION_PERCENT_MAX 10
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/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
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#define AUDIO_DIFF_AVG_NB 20
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/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
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#define SAMPLE_ARRAY_SIZE (2*65536)
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typedef struct PacketQueue {
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AVPacketList *first_pkt, *last_pkt;
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int nb_packets;
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int size;
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int abort_request;
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SDL_mutex *mutex;
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SDL_cond *cond;
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} PacketQueue;
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#define VIDEO_PICTURE_QUEUE_SIZE 1
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#define SUBPICTURE_QUEUE_SIZE 4
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typedef struct VideoPicture {
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double pts; ///<presentation time stamp for this picture
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SDL_Overlay *bmp;
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int width, height; /* source height & width */
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int allocated;
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} VideoPicture;
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typedef struct SubPicture {
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double pts; /* presentation time stamp for this picture */
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AVSubtitle sub;
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} SubPicture;
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enum {
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AV_SYNC_AUDIO_MASTER, /* default choice */
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AV_SYNC_VIDEO_MASTER,
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AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
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};
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typedef struct VideoState {
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SDL_Thread *parse_tid;
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SDL_Thread *video_tid;
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AVInputFormat *iformat;
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int no_background;
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int abort_request;
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int paused;
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int last_paused;
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int seek_req;
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int seek_flags;
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int64_t seek_pos;
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AVFormatContext *ic;
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int dtg_active_format;
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int audio_stream;
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int av_sync_type;
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double external_clock; /* external clock base */
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int64_t external_clock_time;
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double audio_clock;
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double audio_diff_cum; /* used for AV difference average computation */
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double audio_diff_avg_coef;
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double audio_diff_threshold;
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int audio_diff_avg_count;
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AVStream *audio_st;
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PacketQueue audioq;
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int audio_hw_buf_size;
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/* samples output by the codec. we reserve more space for avsync
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compensation */
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uint8_t audio_buf[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2];
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unsigned int audio_buf_size; /* in bytes */
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int audio_buf_index; /* in bytes */
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AVPacket audio_pkt;
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uint8_t *audio_pkt_data;
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int audio_pkt_size;
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int show_audio; /* if true, display audio samples */
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int16_t sample_array[SAMPLE_ARRAY_SIZE];
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int sample_array_index;
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int last_i_start;
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SDL_Thread *subtitle_tid;
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int subtitle_stream;
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int subtitle_stream_changed;
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AVStream *subtitle_st;
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PacketQueue subtitleq;
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SubPicture subpq[SUBPICTURE_QUEUE_SIZE];
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int subpq_size, subpq_rindex, subpq_windex;
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SDL_mutex *subpq_mutex;
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SDL_cond *subpq_cond;
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double frame_timer;
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double frame_last_pts;
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double frame_last_delay;
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double video_clock; ///<pts of last decoded frame / predicted pts of next decoded frame
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int video_stream;
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AVStream *video_st;
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PacketQueue videoq;
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double video_current_pts; ///<current displayed pts (different from video_clock if frame fifos are used)
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int64_t video_current_pts_time; ///<time (av_gettime) at which we updated video_current_pts - used to have running video pts
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VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE];
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int pictq_size, pictq_rindex, pictq_windex;
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SDL_mutex *pictq_mutex;
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SDL_cond *pictq_cond;
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SDL_mutex *video_decoder_mutex;
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SDL_mutex *audio_decoder_mutex;
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SDL_mutex *subtitle_decoder_mutex;
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// QETimer *video_timer;
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char filename[1024];
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int width, height, xleft, ytop;
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} VideoState;
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void show_help(void);
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static int audio_write_get_buf_size(VideoState *is);
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/* options specified by the user */
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static AVInputFormat *file_iformat;
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static AVImageFormat *image_format;
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static const char *input_filename;
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static int fs_screen_width;
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static int fs_screen_height;
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static int screen_width = 640;
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static int screen_height = 480;
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static int audio_disable;
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static int video_disable;
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static int display_disable;
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static int show_status;
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static int av_sync_type = AV_SYNC_AUDIO_MASTER;
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static int64_t start_time = AV_NOPTS_VALUE;
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static int debug = 0;
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static int debug_mv = 0;
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static int step = 0;
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static int thread_count = 1;
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static int workaround_bugs = 1;
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static int fast = 0;
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static int genpts = 0;
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static int lowres = 0;
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static int idct = FF_IDCT_AUTO;
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static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
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static enum AVDiscard skip_idct= AVDISCARD_DEFAULT;
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static enum AVDiscard skip_loop_filter= AVDISCARD_DEFAULT;
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static int error_resilience = FF_ER_CAREFUL;
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static int error_concealment = 3;
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/* current context */
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static int is_full_screen;
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static VideoState *cur_stream;
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static int64_t audio_callback_time;
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#define FF_ALLOC_EVENT (SDL_USEREVENT)
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#define FF_REFRESH_EVENT (SDL_USEREVENT + 1)
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#define FF_QUIT_EVENT (SDL_USEREVENT + 2)
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SDL_Surface *screen;
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/* packet queue handling */
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static void packet_queue_init(PacketQueue *q)
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{
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memset(q, 0, sizeof(PacketQueue));
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q->mutex = SDL_CreateMutex();
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q->cond = SDL_CreateCond();
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}
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static void packet_queue_flush(PacketQueue *q)
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{
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AVPacketList *pkt, *pkt1;
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SDL_LockMutex(q->mutex);
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for(pkt = q->first_pkt; pkt != NULL; pkt = pkt1) {
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pkt1 = pkt->next;
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av_free_packet(&pkt->pkt);
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av_freep(&pkt);
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}
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q->last_pkt = NULL;
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q->first_pkt = NULL;
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q->nb_packets = 0;
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q->size = 0;
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SDL_UnlockMutex(q->mutex);
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}
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static void packet_queue_end(PacketQueue *q)
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{
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packet_queue_flush(q);
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SDL_DestroyMutex(q->mutex);
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SDL_DestroyCond(q->cond);
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}
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static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
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{
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AVPacketList *pkt1;
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/* duplicate the packet */
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if (av_dup_packet(pkt) < 0)
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return -1;
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pkt1 = av_malloc(sizeof(AVPacketList));
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if (!pkt1)
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return -1;
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pkt1->pkt = *pkt;
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pkt1->next = NULL;
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SDL_LockMutex(q->mutex);
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if (!q->last_pkt)
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q->first_pkt = pkt1;
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else
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q->last_pkt->next = pkt1;
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q->last_pkt = pkt1;
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q->nb_packets++;
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q->size += pkt1->pkt.size;
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/* XXX: should duplicate packet data in DV case */
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SDL_CondSignal(q->cond);
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SDL_UnlockMutex(q->mutex);
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return 0;
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}
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static void packet_queue_abort(PacketQueue *q)
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{
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SDL_LockMutex(q->mutex);
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q->abort_request = 1;
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SDL_CondSignal(q->cond);
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SDL_UnlockMutex(q->mutex);
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}
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/* return < 0 if aborted, 0 if no packet and > 0 if packet. */
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static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block)
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{
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AVPacketList *pkt1;
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int ret;
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SDL_LockMutex(q->mutex);
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for(;;) {
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if (q->abort_request) {
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ret = -1;
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break;
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}
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pkt1 = q->first_pkt;
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if (pkt1) {
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q->first_pkt = pkt1->next;
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if (!q->first_pkt)
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q->last_pkt = NULL;
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q->nb_packets--;
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q->size -= pkt1->pkt.size;
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*pkt = pkt1->pkt;
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av_free(pkt1);
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ret = 1;
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break;
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} else if (!block) {
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ret = 0;
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break;
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} else {
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SDL_CondWait(q->cond, q->mutex);
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}
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}
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SDL_UnlockMutex(q->mutex);
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return ret;
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}
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static inline void fill_rectangle(SDL_Surface *screen,
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int x, int y, int w, int h, int color)
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{
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SDL_Rect rect;
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rect.x = x;
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rect.y = y;
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rect.w = w;
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rect.h = h;
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SDL_FillRect(screen, &rect, color);
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}
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#if 0
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/* draw only the border of a rectangle */
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void fill_border(VideoState *s, int x, int y, int w, int h, int color)
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{
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int w1, w2, h1, h2;
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/* fill the background */
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w1 = x;
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if (w1 < 0)
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w1 = 0;
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w2 = s->width - (x + w);
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if (w2 < 0)
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w2 = 0;
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h1 = y;
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if (h1 < 0)
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h1 = 0;
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h2 = s->height - (y + h);
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if (h2 < 0)
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h2 = 0;
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fill_rectangle(screen,
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s->xleft, s->ytop,
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w1, s->height,
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color);
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fill_rectangle(screen,
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s->xleft + s->width - w2, s->ytop,
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w2, s->height,
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color);
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fill_rectangle(screen,
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s->xleft + w1, s->ytop,
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s->width - w1 - w2, h1,
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color);
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fill_rectangle(screen,
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s->xleft + w1, s->ytop + s->height - h2,
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s->width - w1 - w2, h2,
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color);
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}
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#endif
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#define SCALEBITS 10
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#define ONE_HALF (1 << (SCALEBITS - 1))
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#define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
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#define RGB_TO_Y_CCIR(r, g, b) \
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((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
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FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
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#define RGB_TO_U_CCIR(r1, g1, b1, shift)\
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(((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \
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FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
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#define RGB_TO_V_CCIR(r1, g1, b1, shift)\
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(((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \
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FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
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#define ALPHA_BLEND(a, oldp, newp, s)\
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((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s))
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#define RGBA_IN(r, g, b, a, s)\
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{\
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unsigned int v = ((const uint32_t *)(s))[0];\
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a = (v >> 24) & 0xff;\
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r = (v >> 16) & 0xff;\
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g = (v >> 8) & 0xff;\
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b = v & 0xff;\
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}
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#define YUVA_IN(y, u, v, a, s, pal)\
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{\
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unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)s];\
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a = (val >> 24) & 0xff;\
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y = (val >> 16) & 0xff;\
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u = (val >> 8) & 0xff;\
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v = val & 0xff;\
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}
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#define YUVA_OUT(d, y, u, v, a)\
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{\
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((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\
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}
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#define BPP 1
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static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect)
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{
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int wrap, wrap3, width2, skip2;
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int y, u, v, a, u1, v1, a1, w, h;
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uint8_t *lum, *cb, *cr;
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const uint8_t *p;
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const uint32_t *pal;
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lum = dst->data[0] + rect->y * dst->linesize[0];
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cb = dst->data[1] + (rect->y >> 1) * dst->linesize[1];
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cr = dst->data[2] + (rect->y >> 1) * dst->linesize[2];
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width2 = (rect->w + 1) >> 1;
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skip2 = rect->x >> 1;
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wrap = dst->linesize[0];
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wrap3 = rect->linesize;
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p = rect->bitmap;
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pal = rect->rgba_palette; /* Now in YCrCb! */
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if (rect->y & 1) {
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lum += rect->x;
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cb += skip2;
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cr += skip2;
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if (rect->x & 1) {
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YUVA_IN(y, u, v, a, p, pal);
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lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
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cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
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cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
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cb++;
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cr++;
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lum++;
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p += BPP;
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}
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for(w = rect->w - (rect->x & 1); w >= 2; w -= 2) {
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YUVA_IN(y, u, v, a, p, pal);
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u1 = u;
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v1 = v;
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a1 = a;
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lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
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YUVA_IN(y, u, v, a, p + BPP, pal);
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u1 += u;
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v1 += v;
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a1 += a;
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lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
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cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
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cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
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cb++;
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cr++;
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p += 2 * BPP;
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lum += 2;
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}
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if (w) {
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YUVA_IN(y, u, v, a, p, pal);
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lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
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cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
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cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
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}
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p += wrap3 + (wrap3 - rect->w * BPP);
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lum += wrap + (wrap - rect->w - rect->x);
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cb += dst->linesize[1] - width2 - skip2;
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cr += dst->linesize[2] - width2 - skip2;
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}
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for(h = rect->h - (rect->y & 1); h >= 2; h -= 2) {
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lum += rect->x;
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cb += skip2;
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cr += skip2;
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if (rect->x & 1) {
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YUVA_IN(y, u, v, a, p, pal);
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u1 = u;
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v1 = v;
|
|
a1 = a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
p += wrap3;
|
|
lum += wrap;
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
|
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
|
|
cb++;
|
|
cr++;
|
|
p += -wrap3 + BPP;
|
|
lum += -wrap + 1;
|
|
}
|
|
for(w = rect->w - (rect->x & 1); w >= 2; w -= 2) {
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 = u;
|
|
v1 = v;
|
|
a1 = a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
|
|
p += wrap3;
|
|
lum += wrap;
|
|
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
|
|
|
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2);
|
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2);
|
|
|
|
cb++;
|
|
cr++;
|
|
p += -wrap3 + 2 * BPP;
|
|
lum += -wrap + 2;
|
|
}
|
|
if (w) {
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 = u;
|
|
v1 = v;
|
|
a1 = a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
p += wrap3;
|
|
lum += wrap;
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1);
|
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1);
|
|
cb++;
|
|
cr++;
|
|
p += -wrap3 + BPP;
|
|
lum += -wrap + 1;
|
|
}
|
|
p += wrap3 + (wrap3 - rect->w * BPP);
|
|
lum += wrap + (wrap - rect->w - rect->x);
|
|
cb += dst->linesize[1] - width2 - skip2;
|
|
cr += dst->linesize[2] - width2 - skip2;
|
|
}
|
|
/* handle odd height */
|
|
if (h) {
|
|
lum += rect->x;
|
|
cb += skip2;
|
|
cr += skip2;
|
|
|
|
if (rect->x & 1) {
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
|
|
cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
|
|
cb++;
|
|
cr++;
|
|
lum++;
|
|
p += BPP;
|
|
}
|
|
for(w = rect->w - (rect->x & 1); w >= 2; w -= 2) {
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
u1 = u;
|
|
v1 = v;
|
|
a1 = a;
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
|
|
YUVA_IN(y, u, v, a, p + BPP, pal);
|
|
u1 += u;
|
|
v1 += v;
|
|
a1 += a;
|
|
lum[1] = ALPHA_BLEND(a, lum[1], y, 0);
|
|
cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1);
|
|
cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1);
|
|
cb++;
|
|
cr++;
|
|
p += 2 * BPP;
|
|
lum += 2;
|
|
}
|
|
if (w) {
|
|
YUVA_IN(y, u, v, a, p, pal);
|
|
lum[0] = ALPHA_BLEND(a, lum[0], y, 0);
|
|
cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0);
|
|
cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void free_subpicture(SubPicture *sp)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < sp->sub.num_rects; i++)
|
|
{
|
|
av_free(sp->sub.rects[i].bitmap);
|
|
av_free(sp->sub.rects[i].rgba_palette);
|
|
}
|
|
|
|
av_free(sp->sub.rects);
|
|
|
|
memset(&sp->sub, 0, sizeof(AVSubtitle));
|
|
}
|
|
|
|
static void video_image_display(VideoState *is)
|
|
{
|
|
VideoPicture *vp;
|
|
SubPicture *sp;
|
|
AVPicture pict;
|
|
float aspect_ratio;
|
|
int width, height, x, y;
|
|
SDL_Rect rect;
|
|
int i;
|
|
|
|
vp = &is->pictq[is->pictq_rindex];
|
|
if (vp->bmp) {
|
|
/* XXX: use variable in the frame */
|
|
if (is->video_st->codec->sample_aspect_ratio.num == 0)
|
|
aspect_ratio = 0;
|
|
else
|
|
aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio)
|
|
* is->video_st->codec->width / is->video_st->codec->height;;
|
|
if (aspect_ratio <= 0.0)
|
|
aspect_ratio = (float)is->video_st->codec->width /
|
|
(float)is->video_st->codec->height;
|
|
/* if an active format is indicated, then it overrides the
|
|
mpeg format */
|
|
#if 0
|
|
if (is->video_st->codec->dtg_active_format != is->dtg_active_format) {
|
|
is->dtg_active_format = is->video_st->codec->dtg_active_format;
|
|
printf("dtg_active_format=%d\n", is->dtg_active_format);
|
|
}
|
|
#endif
|
|
#if 0
|
|
switch(is->video_st->codec->dtg_active_format) {
|
|
case FF_DTG_AFD_SAME:
|
|
default:
|
|
/* nothing to do */
|
|
break;
|
|
case FF_DTG_AFD_4_3:
|
|
aspect_ratio = 4.0 / 3.0;
|
|
break;
|
|
case FF_DTG_AFD_16_9:
|
|
aspect_ratio = 16.0 / 9.0;
|
|
break;
|
|
case FF_DTG_AFD_14_9:
|
|
aspect_ratio = 14.0 / 9.0;
|
|
break;
|
|
case FF_DTG_AFD_4_3_SP_14_9:
|
|
aspect_ratio = 14.0 / 9.0;
|
|
break;
|
|
case FF_DTG_AFD_16_9_SP_14_9:
|
|
aspect_ratio = 14.0 / 9.0;
|
|
break;
|
|
case FF_DTG_AFD_SP_4_3:
|
|
aspect_ratio = 4.0 / 3.0;
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
if (is->subtitle_st)
|
|
{
|
|
if (is->subpq_size > 0)
|
|
{
|
|
sp = &is->subpq[is->subpq_rindex];
|
|
|
|
if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000))
|
|
{
|
|
SDL_LockYUVOverlay (vp->bmp);
|
|
|
|
pict.data[0] = vp->bmp->pixels[0];
|
|
pict.data[1] = vp->bmp->pixels[2];
|
|
pict.data[2] = vp->bmp->pixels[1];
|
|
|
|
pict.linesize[0] = vp->bmp->pitches[0];
|
|
pict.linesize[1] = vp->bmp->pitches[2];
|
|
pict.linesize[2] = vp->bmp->pitches[1];
|
|
|
|
for (i = 0; i < sp->sub.num_rects; i++)
|
|
blend_subrect(&pict, &sp->sub.rects[i]);
|
|
|
|
SDL_UnlockYUVOverlay (vp->bmp);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* XXX: we suppose the screen has a 1.0 pixel ratio */
|
|
height = is->height;
|
|
width = ((int)rint(height * aspect_ratio)) & -3;
|
|
if (width > is->width) {
|
|
width = is->width;
|
|
height = ((int)rint(width / aspect_ratio)) & -3;
|
|
}
|
|
x = (is->width - width) / 2;
|
|
y = (is->height - height) / 2;
|
|
if (!is->no_background) {
|
|
/* fill the background */
|
|
// fill_border(is, x, y, width, height, QERGB(0x00, 0x00, 0x00));
|
|
} else {
|
|
is->no_background = 0;
|
|
}
|
|
rect.x = is->xleft + x;
|
|
rect.y = is->xleft + y;
|
|
rect.w = width;
|
|
rect.h = height;
|
|
SDL_DisplayYUVOverlay(vp->bmp, &rect);
|
|
} else {
|
|
#if 0
|
|
fill_rectangle(screen,
|
|
is->xleft, is->ytop, is->width, is->height,
|
|
QERGB(0x00, 0x00, 0x00));
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static inline int compute_mod(int a, int b)
|
|
{
|
|
a = a % b;
|
|
if (a >= 0)
|
|
return a;
|
|
else
|
|
return a + b;
|
|
}
|
|
|
|
static void video_audio_display(VideoState *s)
|
|
{
|
|
int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
|
|
int ch, channels, h, h2, bgcolor, fgcolor;
|
|
int16_t time_diff;
|
|
|
|
/* compute display index : center on currently output samples */
|
|
channels = s->audio_st->codec->channels;
|
|
nb_display_channels = channels;
|
|
if (!s->paused) {
|
|
n = 2 * channels;
|
|
delay = audio_write_get_buf_size(s);
|
|
delay /= n;
|
|
|
|
/* to be more precise, we take into account the time spent since
|
|
the last buffer computation */
|
|
if (audio_callback_time) {
|
|
time_diff = av_gettime() - audio_callback_time;
|
|
delay += (time_diff * s->audio_st->codec->sample_rate) / 1000000;
|
|
}
|
|
|
|
delay -= s->width / 2;
|
|
if (delay < s->width)
|
|
delay = s->width;
|
|
i_start = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
|
|
s->last_i_start = i_start;
|
|
} else {
|
|
i_start = s->last_i_start;
|
|
}
|
|
|
|
bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
|
|
fill_rectangle(screen,
|
|
s->xleft, s->ytop, s->width, s->height,
|
|
bgcolor);
|
|
|
|
fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff);
|
|
|
|
/* total height for one channel */
|
|
h = s->height / nb_display_channels;
|
|
/* graph height / 2 */
|
|
h2 = (h * 9) / 20;
|
|
for(ch = 0;ch < nb_display_channels; ch++) {
|
|
i = i_start + ch;
|
|
y1 = s->ytop + ch * h + (h / 2); /* position of center line */
|
|
for(x = 0; x < s->width; x++) {
|
|
y = (s->sample_array[i] * h2) >> 15;
|
|
if (y < 0) {
|
|
y = -y;
|
|
ys = y1 - y;
|
|
} else {
|
|
ys = y1;
|
|
}
|
|
fill_rectangle(screen,
|
|
s->xleft + x, ys, 1, y,
|
|
fgcolor);
|
|
i += channels;
|
|
if (i >= SAMPLE_ARRAY_SIZE)
|
|
i -= SAMPLE_ARRAY_SIZE;
|
|
}
|
|
}
|
|
|
|
fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff);
|
|
|
|
for(ch = 1;ch < nb_display_channels; ch++) {
|
|
y = s->ytop + ch * h;
|
|
fill_rectangle(screen,
|
|
s->xleft, y, s->width, 1,
|
|
fgcolor);
|
|
}
|
|
SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height);
|
|
}
|
|
|
|
/* display the current picture, if any */
|
|
static void video_display(VideoState *is)
|
|
{
|
|
if (is->audio_st && is->show_audio)
|
|
video_audio_display(is);
|
|
else if (is->video_st)
|
|
video_image_display(is);
|
|
}
|
|
|
|
static Uint32 sdl_refresh_timer_cb(Uint32 interval, void *opaque)
|
|
{
|
|
SDL_Event event;
|
|
event.type = FF_REFRESH_EVENT;
|
|
event.user.data1 = opaque;
|
|
SDL_PushEvent(&event);
|
|
return 0; /* 0 means stop timer */
|
|
}
|
|
|
|
/* schedule a video refresh in 'delay' ms */
|
|
static void schedule_refresh(VideoState *is, int delay)
|
|
{
|
|
SDL_AddTimer(delay, sdl_refresh_timer_cb, is);
|
|
}
|
|
|
|
/* get the current audio clock value */
|
|
static double get_audio_clock(VideoState *is)
|
|
{
|
|
double pts;
|
|
int hw_buf_size, bytes_per_sec;
|
|
pts = is->audio_clock;
|
|
hw_buf_size = audio_write_get_buf_size(is);
|
|
bytes_per_sec = 0;
|
|
if (is->audio_st) {
|
|
bytes_per_sec = is->audio_st->codec->sample_rate *
|
|
2 * is->audio_st->codec->channels;
|
|
}
|
|
if (bytes_per_sec)
|
|
pts -= (double)hw_buf_size / bytes_per_sec;
|
|
return pts;
|
|
}
|
|
|
|
/* get the current video clock value */
|
|
static double get_video_clock(VideoState *is)
|
|
{
|
|
double delta;
|
|
if (is->paused) {
|
|
delta = 0;
|
|
} else {
|
|
delta = (av_gettime() - is->video_current_pts_time) / 1000000.0;
|
|
}
|
|
return is->video_current_pts + delta;
|
|
}
|
|
|
|
/* get the current external clock value */
|
|
static double get_external_clock(VideoState *is)
|
|
{
|
|
int64_t ti;
|
|
ti = av_gettime();
|
|
return is->external_clock + ((ti - is->external_clock_time) * 1e-6);
|
|
}
|
|
|
|
/* get the current master clock value */
|
|
static double get_master_clock(VideoState *is)
|
|
{
|
|
double val;
|
|
|
|
if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
|
|
if (is->video_st)
|
|
val = get_video_clock(is);
|
|
else
|
|
val = get_audio_clock(is);
|
|
} else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
|
|
if (is->audio_st)
|
|
val = get_audio_clock(is);
|
|
else
|
|
val = get_video_clock(is);
|
|
} else {
|
|
val = get_external_clock(is);
|
|
}
|
|
return val;
|
|
}
|
|
|
|
/* seek in the stream */
|
|
static void stream_seek(VideoState *is, int64_t pos, int rel)
|
|
{
|
|
if (!is->seek_req) {
|
|
is->seek_pos = pos;
|
|
is->seek_flags = rel < 0 ? AVSEEK_FLAG_BACKWARD : 0;
|
|
is->seek_req = 1;
|
|
}
|
|
}
|
|
|
|
/* pause or resume the video */
|
|
static void stream_pause(VideoState *is)
|
|
{
|
|
is->paused = !is->paused;
|
|
if (is->paused) {
|
|
is->video_current_pts = get_video_clock(is);
|
|
}
|
|
}
|
|
|
|
/* called to display each frame */
|
|
static void video_refresh_timer(void *opaque)
|
|
{
|
|
VideoState *is = opaque;
|
|
VideoPicture *vp;
|
|
double actual_delay, delay, sync_threshold, ref_clock, diff;
|
|
|
|
SubPicture *sp, *sp2;
|
|
|
|
if (is->video_st) {
|
|
if (is->pictq_size == 0) {
|
|
/* if no picture, need to wait */
|
|
schedule_refresh(is, 1);
|
|
} else {
|
|
/* dequeue the picture */
|
|
vp = &is->pictq[is->pictq_rindex];
|
|
|
|
/* update current video pts */
|
|
is->video_current_pts = vp->pts;
|
|
is->video_current_pts_time = av_gettime();
|
|
|
|
/* compute nominal delay */
|
|
delay = vp->pts - is->frame_last_pts;
|
|
if (delay <= 0 || delay >= 1.0) {
|
|
/* if incorrect delay, use previous one */
|
|
delay = is->frame_last_delay;
|
|
}
|
|
is->frame_last_delay = delay;
|
|
is->frame_last_pts = vp->pts;
|
|
|
|
/* update delay to follow master synchronisation source */
|
|
if (((is->av_sync_type == AV_SYNC_AUDIO_MASTER && is->audio_st) ||
|
|
is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
|
|
/* if video is slave, we try to correct big delays by
|
|
duplicating or deleting a frame */
|
|
ref_clock = get_master_clock(is);
|
|
diff = vp->pts - ref_clock;
|
|
|
|
/* skip or repeat frame. We take into account the
|
|
delay to compute the threshold. I still don't know
|
|
if it is the best guess */
|
|
sync_threshold = AV_SYNC_THRESHOLD;
|
|
if (delay > sync_threshold)
|
|
sync_threshold = delay;
|
|
if (fabs(diff) < AV_NOSYNC_THRESHOLD) {
|
|
if (diff <= -sync_threshold)
|
|
delay = 0;
|
|
else if (diff >= sync_threshold)
|
|
delay = 2 * delay;
|
|
}
|
|
}
|
|
|
|
is->frame_timer += delay;
|
|
/* compute the REAL delay (we need to do that to avoid
|
|
long term errors */
|
|
actual_delay = is->frame_timer - (av_gettime() / 1000000.0);
|
|
if (actual_delay < 0.010) {
|
|
/* XXX: should skip picture */
|
|
actual_delay = 0.010;
|
|
}
|
|
/* launch timer for next picture */
|
|
schedule_refresh(is, (int)(actual_delay * 1000 + 0.5));
|
|
|
|
#if defined(DEBUG_SYNC)
|
|
printf("video: delay=%0.3f actual_delay=%0.3f pts=%0.3f A-V=%f\n",
|
|
delay, actual_delay, vp->pts, -diff);
|
|
#endif
|
|
|
|
if(is->subtitle_st) {
|
|
if (is->subtitle_stream_changed) {
|
|
SDL_LockMutex(is->subpq_mutex);
|
|
|
|
while (is->subpq_size) {
|
|
free_subpicture(&is->subpq[is->subpq_rindex]);
|
|
|
|
/* update queue size and signal for next picture */
|
|
if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
|
|
is->subpq_rindex = 0;
|
|
|
|
is->subpq_size--;
|
|
}
|
|
is->subtitle_stream_changed = 0;
|
|
|
|
SDL_CondSignal(is->subpq_cond);
|
|
SDL_UnlockMutex(is->subpq_mutex);
|
|
} else {
|
|
if (is->subpq_size > 0) {
|
|
sp = &is->subpq[is->subpq_rindex];
|
|
|
|
if (is->subpq_size > 1)
|
|
sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE];
|
|
else
|
|
sp2 = NULL;
|
|
|
|
if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
|
|
|| (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
|
|
{
|
|
free_subpicture(sp);
|
|
|
|
/* update queue size and signal for next picture */
|
|
if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE)
|
|
is->subpq_rindex = 0;
|
|
|
|
SDL_LockMutex(is->subpq_mutex);
|
|
is->subpq_size--;
|
|
SDL_CondSignal(is->subpq_cond);
|
|
SDL_UnlockMutex(is->subpq_mutex);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* display picture */
|
|
video_display(is);
|
|
|
|
/* update queue size and signal for next picture */
|
|
if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE)
|
|
is->pictq_rindex = 0;
|
|
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
is->pictq_size--;
|
|
SDL_CondSignal(is->pictq_cond);
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
}
|
|
} else if (is->audio_st) {
|
|
/* draw the next audio frame */
|
|
|
|
schedule_refresh(is, 40);
|
|
|
|
/* if only audio stream, then display the audio bars (better
|
|
than nothing, just to test the implementation */
|
|
|
|
/* display picture */
|
|
video_display(is);
|
|
} else {
|
|
schedule_refresh(is, 100);
|
|
}
|
|
if (show_status) {
|
|
static int64_t last_time;
|
|
int64_t cur_time;
|
|
int aqsize, vqsize, sqsize;
|
|
double av_diff;
|
|
|
|
cur_time = av_gettime();
|
|
if (!last_time || (cur_time - last_time) >= 500 * 1000) {
|
|
aqsize = 0;
|
|
vqsize = 0;
|
|
sqsize = 0;
|
|
if (is->audio_st)
|
|
aqsize = is->audioq.size;
|
|
if (is->video_st)
|
|
vqsize = is->videoq.size;
|
|
if (is->subtitle_st)
|
|
sqsize = is->subtitleq.size;
|
|
av_diff = 0;
|
|
if (is->audio_st && is->video_st)
|
|
av_diff = get_audio_clock(is) - get_video_clock(is);
|
|
printf("%7.2f A-V:%7.3f aq=%5dKB vq=%5dKB sq=%5dB \r",
|
|
get_master_clock(is), av_diff, aqsize / 1024, vqsize / 1024, sqsize);
|
|
fflush(stdout);
|
|
last_time = cur_time;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* allocate a picture (needs to do that in main thread to avoid
|
|
potential locking problems */
|
|
static void alloc_picture(void *opaque)
|
|
{
|
|
VideoState *is = opaque;
|
|
VideoPicture *vp;
|
|
|
|
vp = &is->pictq[is->pictq_windex];
|
|
|
|
if (vp->bmp)
|
|
SDL_FreeYUVOverlay(vp->bmp);
|
|
|
|
#if 0
|
|
/* XXX: use generic function */
|
|
/* XXX: disable overlay if no hardware acceleration or if RGB format */
|
|
switch(is->video_st->codec->pix_fmt) {
|
|
case PIX_FMT_YUV420P:
|
|
case PIX_FMT_YUV422P:
|
|
case PIX_FMT_YUV444P:
|
|
case PIX_FMT_YUV422:
|
|
case PIX_FMT_YUV410P:
|
|
case PIX_FMT_YUV411P:
|
|
is_yuv = 1;
|
|
break;
|
|
default:
|
|
is_yuv = 0;
|
|
break;
|
|
}
|
|
#endif
|
|
vp->bmp = SDL_CreateYUVOverlay(is->video_st->codec->width,
|
|
is->video_st->codec->height,
|
|
SDL_YV12_OVERLAY,
|
|
screen);
|
|
vp->width = is->video_st->codec->width;
|
|
vp->height = is->video_st->codec->height;
|
|
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
vp->allocated = 1;
|
|
SDL_CondSignal(is->pictq_cond);
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param pts the dts of the pkt / pts of the frame and guessed if not known
|
|
*/
|
|
static int queue_picture(VideoState *is, AVFrame *src_frame, double pts)
|
|
{
|
|
VideoPicture *vp;
|
|
int dst_pix_fmt;
|
|
AVPicture pict;
|
|
|
|
/* wait until we have space to put a new picture */
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE &&
|
|
!is->videoq.abort_request) {
|
|
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
|
|
}
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
|
|
if (is->videoq.abort_request)
|
|
return -1;
|
|
|
|
vp = &is->pictq[is->pictq_windex];
|
|
|
|
/* alloc or resize hardware picture buffer */
|
|
if (!vp->bmp ||
|
|
vp->width != is->video_st->codec->width ||
|
|
vp->height != is->video_st->codec->height) {
|
|
SDL_Event event;
|
|
|
|
vp->allocated = 0;
|
|
|
|
/* the allocation must be done in the main thread to avoid
|
|
locking problems */
|
|
event.type = FF_ALLOC_EVENT;
|
|
event.user.data1 = is;
|
|
SDL_PushEvent(&event);
|
|
|
|
/* wait until the picture is allocated */
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
while (!vp->allocated && !is->videoq.abort_request) {
|
|
SDL_CondWait(is->pictq_cond, is->pictq_mutex);
|
|
}
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
|
|
if (is->videoq.abort_request)
|
|
return -1;
|
|
}
|
|
|
|
/* if the frame is not skipped, then display it */
|
|
if (vp->bmp) {
|
|
/* get a pointer on the bitmap */
|
|
SDL_LockYUVOverlay (vp->bmp);
|
|
|
|
dst_pix_fmt = PIX_FMT_YUV420P;
|
|
pict.data[0] = vp->bmp->pixels[0];
|
|
pict.data[1] = vp->bmp->pixels[2];
|
|
pict.data[2] = vp->bmp->pixels[1];
|
|
|
|
pict.linesize[0] = vp->bmp->pitches[0];
|
|
pict.linesize[1] = vp->bmp->pitches[2];
|
|
pict.linesize[2] = vp->bmp->pitches[1];
|
|
img_convert(&pict, dst_pix_fmt,
|
|
(AVPicture *)src_frame, is->video_st->codec->pix_fmt,
|
|
is->video_st->codec->width, is->video_st->codec->height);
|
|
/* update the bitmap content */
|
|
SDL_UnlockYUVOverlay(vp->bmp);
|
|
|
|
vp->pts = pts;
|
|
|
|
/* now we can update the picture count */
|
|
if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE)
|
|
is->pictq_windex = 0;
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
is->pictq_size++;
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* compute the exact PTS for the picture if it is omitted in the stream
|
|
* @param pts1 the dts of the pkt / pts of the frame
|
|
*/
|
|
static int output_picture2(VideoState *is, AVFrame *src_frame, double pts1)
|
|
{
|
|
double frame_delay, pts;
|
|
|
|
pts = pts1;
|
|
|
|
if (pts != 0) {
|
|
/* update video clock with pts, if present */
|
|
is->video_clock = pts;
|
|
} else {
|
|
pts = is->video_clock;
|
|
}
|
|
/* update video clock for next frame */
|
|
frame_delay = av_q2d(is->video_st->codec->time_base);
|
|
/* for MPEG2, the frame can be repeated, so we update the
|
|
clock accordingly */
|
|
frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
|
|
is->video_clock += frame_delay;
|
|
|
|
#if defined(DEBUG_SYNC) && 0
|
|
{
|
|
int ftype;
|
|
if (src_frame->pict_type == FF_B_TYPE)
|
|
ftype = 'B';
|
|
else if (src_frame->pict_type == FF_I_TYPE)
|
|
ftype = 'I';
|
|
else
|
|
ftype = 'P';
|
|
printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
|
|
ftype, pts, pts1);
|
|
}
|
|
#endif
|
|
return queue_picture(is, src_frame, pts);
|
|
}
|
|
|
|
static int video_thread(void *arg)
|
|
{
|
|
VideoState *is = arg;
|
|
AVPacket pkt1, *pkt = &pkt1;
|
|
int len1, got_picture;
|
|
AVFrame *frame= avcodec_alloc_frame();
|
|
double pts;
|
|
|
|
for(;;) {
|
|
while (is->paused && !is->videoq.abort_request) {
|
|
SDL_Delay(10);
|
|
}
|
|
if (packet_queue_get(&is->videoq, pkt, 1) < 0)
|
|
break;
|
|
/* NOTE: ipts is the PTS of the _first_ picture beginning in
|
|
this packet, if any */
|
|
pts = 0;
|
|
if (pkt->dts != AV_NOPTS_VALUE)
|
|
pts = av_q2d(is->video_st->time_base)*pkt->dts;
|
|
|
|
SDL_LockMutex(is->video_decoder_mutex);
|
|
len1 = avcodec_decode_video(is->video_st->codec,
|
|
frame, &got_picture,
|
|
pkt->data, pkt->size);
|
|
SDL_UnlockMutex(is->video_decoder_mutex);
|
|
// if (len1 < 0)
|
|
// break;
|
|
if (got_picture) {
|
|
if (output_picture2(is, frame, pts) < 0)
|
|
goto the_end;
|
|
}
|
|
av_free_packet(pkt);
|
|
if (step)
|
|
if (cur_stream)
|
|
stream_pause(cur_stream);
|
|
}
|
|
the_end:
|
|
av_free(frame);
|
|
return 0;
|
|
}
|
|
|
|
static int subtitle_thread(void *arg)
|
|
{
|
|
VideoState *is = arg;
|
|
SubPicture *sp;
|
|
AVPacket pkt1, *pkt = &pkt1;
|
|
int len1, got_subtitle;
|
|
double pts;
|
|
int i, j;
|
|
int r, g, b, y, u, v, a;
|
|
|
|
for(;;) {
|
|
while (is->paused && !is->subtitleq.abort_request) {
|
|
SDL_Delay(10);
|
|
}
|
|
if (packet_queue_get(&is->subtitleq, pkt, 1) < 0)
|
|
break;
|
|
|
|
SDL_LockMutex(is->subpq_mutex);
|
|
while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE &&
|
|
!is->subtitleq.abort_request) {
|
|
SDL_CondWait(is->subpq_cond, is->subpq_mutex);
|
|
}
|
|
SDL_UnlockMutex(is->subpq_mutex);
|
|
|
|
if (is->subtitleq.abort_request)
|
|
goto the_end;
|
|
|
|
sp = &is->subpq[is->subpq_windex];
|
|
|
|
/* NOTE: ipts is the PTS of the _first_ picture beginning in
|
|
this packet, if any */
|
|
pts = 0;
|
|
if (pkt->pts != AV_NOPTS_VALUE)
|
|
pts = av_q2d(is->subtitle_st->time_base)*pkt->pts;
|
|
|
|
SDL_LockMutex(is->subtitle_decoder_mutex);
|
|
len1 = avcodec_decode_subtitle(is->subtitle_st->codec,
|
|
&sp->sub, &got_subtitle,
|
|
pkt->data, pkt->size);
|
|
SDL_UnlockMutex(is->subtitle_decoder_mutex);
|
|
// if (len1 < 0)
|
|
// break;
|
|
if (got_subtitle && sp->sub.format == 0) {
|
|
sp->pts = pts;
|
|
|
|
for (i = 0; i < sp->sub.num_rects; i++)
|
|
{
|
|
for (j = 0; j < sp->sub.rects[i].nb_colors; j++)
|
|
{
|
|
RGBA_IN(r, g, b, a, sp->sub.rects[i].rgba_palette + j);
|
|
y = RGB_TO_Y_CCIR(r, g, b);
|
|
u = RGB_TO_U_CCIR(r, g, b, 0);
|
|
v = RGB_TO_V_CCIR(r, g, b, 0);
|
|
YUVA_OUT(sp->sub.rects[i].rgba_palette + j, y, u, v, a);
|
|
}
|
|
}
|
|
|
|
/* now we can update the picture count */
|
|
if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE)
|
|
is->subpq_windex = 0;
|
|
SDL_LockMutex(is->subpq_mutex);
|
|
is->subpq_size++;
|
|
SDL_UnlockMutex(is->subpq_mutex);
|
|
}
|
|
av_free_packet(pkt);
|
|
// if (step)
|
|
// if (cur_stream)
|
|
// stream_pause(cur_stream);
|
|
}
|
|
the_end:
|
|
return 0;
|
|
}
|
|
|
|
/* copy samples for viewing in editor window */
|
|
static void update_sample_display(VideoState *is, short *samples, int samples_size)
|
|
{
|
|
int size, len, channels;
|
|
|
|
channels = is->audio_st->codec->channels;
|
|
|
|
size = samples_size / sizeof(short);
|
|
while (size > 0) {
|
|
len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
|
|
if (len > size)
|
|
len = size;
|
|
memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
|
|
samples += len;
|
|
is->sample_array_index += len;
|
|
if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
|
|
is->sample_array_index = 0;
|
|
size -= len;
|
|
}
|
|
}
|
|
|
|
/* return the new audio buffer size (samples can be added or deleted
|
|
to get better sync if video or external master clock) */
|
|
static int synchronize_audio(VideoState *is, short *samples,
|
|
int samples_size1, double pts)
|
|
{
|
|
int n, samples_size;
|
|
double ref_clock;
|
|
|
|
n = 2 * is->audio_st->codec->channels;
|
|
samples_size = samples_size1;
|
|
|
|
/* if not master, then we try to remove or add samples to correct the clock */
|
|
if (((is->av_sync_type == AV_SYNC_VIDEO_MASTER && is->video_st) ||
|
|
is->av_sync_type == AV_SYNC_EXTERNAL_CLOCK)) {
|
|
double diff, avg_diff;
|
|
int wanted_size, min_size, max_size, nb_samples;
|
|
|
|
ref_clock = get_master_clock(is);
|
|
diff = get_audio_clock(is) - ref_clock;
|
|
|
|
if (diff < AV_NOSYNC_THRESHOLD) {
|
|
is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
|
|
if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
|
|
/* not enough measures to have a correct estimate */
|
|
is->audio_diff_avg_count++;
|
|
} else {
|
|
/* estimate the A-V difference */
|
|
avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
|
|
|
|
if (fabs(avg_diff) >= is->audio_diff_threshold) {
|
|
wanted_size = samples_size + ((int)(diff * is->audio_st->codec->sample_rate) * n);
|
|
nb_samples = samples_size / n;
|
|
|
|
min_size = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
|
|
max_size = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX)) / 100) * n;
|
|
if (wanted_size < min_size)
|
|
wanted_size = min_size;
|
|
else if (wanted_size > max_size)
|
|
wanted_size = max_size;
|
|
|
|
/* add or remove samples to correction the synchro */
|
|
if (wanted_size < samples_size) {
|
|
/* remove samples */
|
|
samples_size = wanted_size;
|
|
} else if (wanted_size > samples_size) {
|
|
uint8_t *samples_end, *q;
|
|
int nb;
|
|
|
|
/* add samples */
|
|
nb = (samples_size - wanted_size);
|
|
samples_end = (uint8_t *)samples + samples_size - n;
|
|
q = samples_end + n;
|
|
while (nb > 0) {
|
|
memcpy(q, samples_end, n);
|
|
q += n;
|
|
nb -= n;
|
|
}
|
|
samples_size = wanted_size;
|
|
}
|
|
}
|
|
#if 0
|
|
printf("diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
|
|
diff, avg_diff, samples_size - samples_size1,
|
|
is->audio_clock, is->video_clock, is->audio_diff_threshold);
|
|
#endif
|
|
}
|
|
} else {
|
|
/* too big difference : may be initial PTS errors, so
|
|
reset A-V filter */
|
|
is->audio_diff_avg_count = 0;
|
|
is->audio_diff_cum = 0;
|
|
}
|
|
}
|
|
|
|
return samples_size;
|
|
}
|
|
|
|
/* decode one audio frame and returns its uncompressed size */
|
|
static int audio_decode_frame(VideoState *is, uint8_t *audio_buf, double *pts_ptr)
|
|
{
|
|
AVPacket *pkt = &is->audio_pkt;
|
|
int n, len1, data_size;
|
|
double pts;
|
|
|
|
for(;;) {
|
|
/* NOTE: the audio packet can contain several frames */
|
|
while (is->audio_pkt_size > 0) {
|
|
SDL_LockMutex(is->audio_decoder_mutex);
|
|
len1 = avcodec_decode_audio(is->audio_st->codec,
|
|
(int16_t *)audio_buf, &data_size,
|
|
is->audio_pkt_data, is->audio_pkt_size);
|
|
SDL_UnlockMutex(is->audio_decoder_mutex);
|
|
if (len1 < 0) {
|
|
/* if error, we skip the frame */
|
|
is->audio_pkt_size = 0;
|
|
break;
|
|
}
|
|
|
|
is->audio_pkt_data += len1;
|
|
is->audio_pkt_size -= len1;
|
|
if (data_size <= 0)
|
|
continue;
|
|
/* if no pts, then compute it */
|
|
pts = is->audio_clock;
|
|
*pts_ptr = pts;
|
|
n = 2 * is->audio_st->codec->channels;
|
|
is->audio_clock += (double)data_size /
|
|
(double)(n * is->audio_st->codec->sample_rate);
|
|
#if defined(DEBUG_SYNC)
|
|
{
|
|
static double last_clock;
|
|
printf("audio: delay=%0.3f clock=%0.3f pts=%0.3f\n",
|
|
is->audio_clock - last_clock,
|
|
is->audio_clock, pts);
|
|
last_clock = is->audio_clock;
|
|
}
|
|
#endif
|
|
return data_size;
|
|
}
|
|
|
|
/* free the current packet */
|
|
if (pkt->data)
|
|
av_free_packet(pkt);
|
|
|
|
if (is->paused || is->audioq.abort_request) {
|
|
return -1;
|
|
}
|
|
|
|
/* read next packet */
|
|
if (packet_queue_get(&is->audioq, pkt, 1) < 0)
|
|
return -1;
|
|
is->audio_pkt_data = pkt->data;
|
|
is->audio_pkt_size = pkt->size;
|
|
|
|
/* if update the audio clock with the pts */
|
|
if (pkt->pts != AV_NOPTS_VALUE) {
|
|
is->audio_clock = av_q2d(is->audio_st->time_base)*pkt->pts;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* get the current audio output buffer size, in samples. With SDL, we
|
|
cannot have a precise information */
|
|
static int audio_write_get_buf_size(VideoState *is)
|
|
{
|
|
return is->audio_hw_buf_size - is->audio_buf_index;
|
|
}
|
|
|
|
|
|
/* prepare a new audio buffer */
|
|
void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
|
|
{
|
|
VideoState *is = opaque;
|
|
int audio_size, len1;
|
|
double pts;
|
|
|
|
audio_callback_time = av_gettime();
|
|
|
|
while (len > 0) {
|
|
if (is->audio_buf_index >= is->audio_buf_size) {
|
|
audio_size = audio_decode_frame(is, is->audio_buf, &pts);
|
|
if (audio_size < 0) {
|
|
/* if error, just output silence */
|
|
is->audio_buf_size = 1024;
|
|
memset(is->audio_buf, 0, is->audio_buf_size);
|
|
} else {
|
|
if (is->show_audio)
|
|
update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
|
|
audio_size = synchronize_audio(is, (int16_t *)is->audio_buf, audio_size,
|
|
pts);
|
|
is->audio_buf_size = audio_size;
|
|
}
|
|
is->audio_buf_index = 0;
|
|
}
|
|
len1 = is->audio_buf_size - is->audio_buf_index;
|
|
if (len1 > len)
|
|
len1 = len;
|
|
memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
|
|
len -= len1;
|
|
stream += len1;
|
|
is->audio_buf_index += len1;
|
|
}
|
|
}
|
|
|
|
|
|
/* open a given stream. Return 0 if OK */
|
|
static int stream_component_open(VideoState *is, int stream_index)
|
|
{
|
|
AVFormatContext *ic = is->ic;
|
|
AVCodecContext *enc;
|
|
AVCodec *codec;
|
|
SDL_AudioSpec wanted_spec, spec;
|
|
|
|
if (stream_index < 0 || stream_index >= ic->nb_streams)
|
|
return -1;
|
|
enc = ic->streams[stream_index]->codec;
|
|
|
|
/* prepare audio output */
|
|
if (enc->codec_type == CODEC_TYPE_AUDIO) {
|
|
wanted_spec.freq = enc->sample_rate;
|
|
wanted_spec.format = AUDIO_S16SYS;
|
|
/* hack for AC3. XXX: suppress that */
|
|
if (enc->channels > 2)
|
|
enc->channels = 2;
|
|
wanted_spec.channels = enc->channels;
|
|
wanted_spec.silence = 0;
|
|
wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE;
|
|
wanted_spec.callback = sdl_audio_callback;
|
|
wanted_spec.userdata = is;
|
|
if (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
|
|
fprintf(stderr, "SDL_OpenAudio: %s\n", SDL_GetError());
|
|
return -1;
|
|
}
|
|
is->audio_hw_buf_size = spec.size;
|
|
}
|
|
|
|
codec = avcodec_find_decoder(enc->codec_id);
|
|
enc->debug_mv = debug_mv;
|
|
enc->debug = debug;
|
|
enc->workaround_bugs = workaround_bugs;
|
|
enc->lowres = lowres;
|
|
if(lowres) enc->flags |= CODEC_FLAG_EMU_EDGE;
|
|
enc->idct_algo= idct;
|
|
if(fast) enc->flags2 |= CODEC_FLAG2_FAST;
|
|
enc->skip_frame= skip_frame;
|
|
enc->skip_idct= skip_idct;
|
|
enc->skip_loop_filter= skip_loop_filter;
|
|
enc->error_resilience= error_resilience;
|
|
enc->error_concealment= error_concealment;
|
|
if (!codec ||
|
|
avcodec_open(enc, codec) < 0)
|
|
return -1;
|
|
#if defined(HAVE_THREADS)
|
|
if(thread_count>1)
|
|
avcodec_thread_init(enc, thread_count);
|
|
#endif
|
|
enc->thread_count= thread_count;
|
|
switch(enc->codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
is->audio_stream = stream_index;
|
|
is->audio_st = ic->streams[stream_index];
|
|
is->audio_buf_size = 0;
|
|
is->audio_buf_index = 0;
|
|
|
|
/* init averaging filter */
|
|
is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
|
|
is->audio_diff_avg_count = 0;
|
|
/* since we do not have a precise anough audio fifo fullness,
|
|
we correct audio sync only if larger than this threshold */
|
|
is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / enc->sample_rate;
|
|
|
|
memset(&is->audio_pkt, 0, sizeof(is->audio_pkt));
|
|
packet_queue_init(&is->audioq);
|
|
SDL_PauseAudio(0);
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
is->video_stream = stream_index;
|
|
is->video_st = ic->streams[stream_index];
|
|
|
|
is->frame_last_delay = 40e-3;
|
|
is->frame_timer = (double)av_gettime() / 1000000.0;
|
|
is->video_current_pts_time = av_gettime();
|
|
|
|
packet_queue_init(&is->videoq);
|
|
is->video_tid = SDL_CreateThread(video_thread, is);
|
|
break;
|
|
case CODEC_TYPE_SUBTITLE:
|
|
is->subtitle_stream = stream_index;
|
|
is->subtitle_st = ic->streams[stream_index];
|
|
packet_queue_init(&is->subtitleq);
|
|
|
|
is->subtitle_tid = SDL_CreateThread(subtitle_thread, is);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void stream_component_close(VideoState *is, int stream_index)
|
|
{
|
|
AVFormatContext *ic = is->ic;
|
|
AVCodecContext *enc;
|
|
|
|
if (stream_index < 0 || stream_index >= ic->nb_streams)
|
|
return;
|
|
enc = ic->streams[stream_index]->codec;
|
|
|
|
switch(enc->codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
packet_queue_abort(&is->audioq);
|
|
|
|
SDL_CloseAudio();
|
|
|
|
packet_queue_end(&is->audioq);
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
packet_queue_abort(&is->videoq);
|
|
|
|
/* note: we also signal this mutex to make sure we deblock the
|
|
video thread in all cases */
|
|
SDL_LockMutex(is->pictq_mutex);
|
|
SDL_CondSignal(is->pictq_cond);
|
|
SDL_UnlockMutex(is->pictq_mutex);
|
|
|
|
SDL_WaitThread(is->video_tid, NULL);
|
|
|
|
packet_queue_end(&is->videoq);
|
|
break;
|
|
case CODEC_TYPE_SUBTITLE:
|
|
packet_queue_abort(&is->subtitleq);
|
|
|
|
/* note: we also signal this mutex to make sure we deblock the
|
|
video thread in all cases */
|
|
SDL_LockMutex(is->subpq_mutex);
|
|
is->subtitle_stream_changed = 1;
|
|
|
|
SDL_CondSignal(is->subpq_cond);
|
|
SDL_UnlockMutex(is->subpq_mutex);
|
|
|
|
SDL_WaitThread(is->subtitle_tid, NULL);
|
|
|
|
packet_queue_end(&is->subtitleq);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
avcodec_close(enc);
|
|
switch(enc->codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
is->audio_st = NULL;
|
|
is->audio_stream = -1;
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
is->video_st = NULL;
|
|
is->video_stream = -1;
|
|
break;
|
|
case CODEC_TYPE_SUBTITLE:
|
|
is->subtitle_st = NULL;
|
|
is->subtitle_stream = -1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void dump_stream_info(const AVFormatContext *s)
|
|
{
|
|
if (s->track != 0)
|
|
fprintf(stderr, "Track: %d\n", s->track);
|
|
if (s->title[0] != '\0')
|
|
fprintf(stderr, "Title: %s\n", s->title);
|
|
if (s->author[0] != '\0')
|
|
fprintf(stderr, "Author: %s\n", s->author);
|
|
if (s->album[0] != '\0')
|
|
fprintf(stderr, "Album: %s\n", s->album);
|
|
if (s->year != 0)
|
|
fprintf(stderr, "Year: %d\n", s->year);
|
|
if (s->genre[0] != '\0')
|
|
fprintf(stderr, "Genre: %s\n", s->genre);
|
|
}
|
|
|
|
/* since we have only one decoding thread, we can use a global
|
|
variable instead of a thread local variable */
|
|
static VideoState *global_video_state;
|
|
|
|
static int decode_interrupt_cb(void)
|
|
{
|
|
return (global_video_state && global_video_state->abort_request);
|
|
}
|
|
|
|
/* this thread gets the stream from the disk or the network */
|
|
static int decode_thread(void *arg)
|
|
{
|
|
VideoState *is = arg;
|
|
AVFormatContext *ic;
|
|
int err, i, ret, video_index, audio_index, use_play;
|
|
AVPacket pkt1, *pkt = &pkt1;
|
|
AVFormatParameters params, *ap = ¶ms;
|
|
|
|
video_index = -1;
|
|
audio_index = -1;
|
|
is->video_stream = -1;
|
|
is->audio_stream = -1;
|
|
is->subtitle_stream = -1;
|
|
|
|
global_video_state = is;
|
|
url_set_interrupt_cb(decode_interrupt_cb);
|
|
|
|
memset(ap, 0, sizeof(*ap));
|
|
ap->image_format = image_format;
|
|
ap->initial_pause = 1; /* we force a pause when starting an RTSP
|
|
stream */
|
|
|
|
err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
|
|
if (err < 0) {
|
|
print_error(is->filename, err);
|
|
ret = -1;
|
|
goto fail;
|
|
}
|
|
is->ic = ic;
|
|
#ifdef CONFIG_NETWORK
|
|
use_play = (ic->iformat == &rtsp_demux);
|
|
#else
|
|
use_play = 0;
|
|
#endif
|
|
|
|
if(genpts)
|
|
ic->flags |= AVFMT_FLAG_GENPTS;
|
|
|
|
if (!use_play) {
|
|
err = av_find_stream_info(ic);
|
|
if (err < 0) {
|
|
fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
|
|
ret = -1;
|
|
goto fail;
|
|
}
|
|
ic->pb.eof_reached= 0; //FIXME hack, ffplay maybe shouldnt use url_feof() to test for the end
|
|
}
|
|
|
|
/* if seeking requested, we execute it */
|
|
if (start_time != AV_NOPTS_VALUE) {
|
|
int64_t timestamp;
|
|
|
|
timestamp = start_time;
|
|
/* add the stream start time */
|
|
if (ic->start_time != AV_NOPTS_VALUE)
|
|
timestamp += ic->start_time;
|
|
ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "%s: could not seek to position %0.3f\n",
|
|
is->filename, (double)timestamp / AV_TIME_BASE);
|
|
}
|
|
}
|
|
|
|
/* now we can begin to play (RTSP stream only) */
|
|
av_read_play(ic);
|
|
|
|
if (use_play) {
|
|
err = av_find_stream_info(ic);
|
|
if (err < 0) {
|
|
fprintf(stderr, "%s: could not find codec parameters\n", is->filename);
|
|
ret = -1;
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
for(i = 0; i < ic->nb_streams; i++) {
|
|
AVCodecContext *enc = ic->streams[i]->codec;
|
|
switch(enc->codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
if (audio_index < 0 && !audio_disable)
|
|
audio_index = i;
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
if (video_index < 0 && !video_disable)
|
|
video_index = i;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
if (show_status) {
|
|
dump_format(ic, 0, is->filename, 0);
|
|
dump_stream_info(ic);
|
|
}
|
|
|
|
/* open the streams */
|
|
if (audio_index >= 0) {
|
|
stream_component_open(is, audio_index);
|
|
}
|
|
|
|
if (video_index >= 0) {
|
|
stream_component_open(is, video_index);
|
|
} else {
|
|
if (!display_disable)
|
|
is->show_audio = 1;
|
|
}
|
|
|
|
if (is->video_stream < 0 && is->audio_stream < 0) {
|
|
fprintf(stderr, "%s: could not open codecs\n", is->filename);
|
|
ret = -1;
|
|
goto fail;
|
|
}
|
|
|
|
for(;;) {
|
|
if (is->abort_request)
|
|
break;
|
|
#ifdef CONFIG_NETWORK
|
|
if (is->paused != is->last_paused) {
|
|
is->last_paused = is->paused;
|
|
if (is->paused)
|
|
av_read_pause(ic);
|
|
else
|
|
av_read_play(ic);
|
|
}
|
|
if (is->paused && ic->iformat == &rtsp_demux) {
|
|
/* wait 10 ms to avoid trying to get another packet */
|
|
/* XXX: horrible */
|
|
SDL_Delay(10);
|
|
continue;
|
|
}
|
|
#endif
|
|
if (is->seek_req) {
|
|
/* XXX: must lock decoder threads */
|
|
SDL_LockMutex(is->video_decoder_mutex);
|
|
SDL_LockMutex(is->audio_decoder_mutex);
|
|
SDL_LockMutex(is->subtitle_decoder_mutex);
|
|
ret = av_seek_frame(is->ic, -1, is->seek_pos, is->seek_flags);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "%s: error while seeking\n", is->ic->filename);
|
|
}else{
|
|
if (is->audio_stream >= 0) {
|
|
packet_queue_flush(&is->audioq);
|
|
}
|
|
if (is->subtitle_stream >= 0) {
|
|
packet_queue_flush(&is->subtitleq);
|
|
}
|
|
if (is->video_stream >= 0) {
|
|
packet_queue_flush(&is->videoq);
|
|
avcodec_flush_buffers(ic->streams[video_index]->codec);
|
|
}
|
|
}
|
|
SDL_UnlockMutex(is->subtitle_decoder_mutex);
|
|
SDL_UnlockMutex(is->audio_decoder_mutex);
|
|
SDL_UnlockMutex(is->video_decoder_mutex);
|
|
is->seek_req = 0;
|
|
}
|
|
|
|
/* if the queue are full, no need to read more */
|
|
if (is->audioq.size > MAX_AUDIOQ_SIZE ||
|
|
is->videoq.size > MAX_VIDEOQ_SIZE ||
|
|
is->subtitleq.size > MAX_SUBTITLEQ_SIZE ||
|
|
url_feof(&ic->pb)) {
|
|
/* wait 10 ms */
|
|
SDL_Delay(10);
|
|
continue;
|
|
}
|
|
ret = av_read_frame(ic, pkt);
|
|
if (ret < 0) {
|
|
if (url_ferror(&ic->pb) == 0) {
|
|
SDL_Delay(100); /* wait for user event */
|
|
continue;
|
|
} else
|
|
break;
|
|
}
|
|
if (pkt->stream_index == is->audio_stream) {
|
|
packet_queue_put(&is->audioq, pkt);
|
|
} else if (pkt->stream_index == is->video_stream) {
|
|
packet_queue_put(&is->videoq, pkt);
|
|
} else if (pkt->stream_index == is->subtitle_stream) {
|
|
packet_queue_put(&is->subtitleq, pkt);
|
|
} else {
|
|
av_free_packet(pkt);
|
|
}
|
|
}
|
|
/* wait until the end */
|
|
while (!is->abort_request) {
|
|
SDL_Delay(100);
|
|
}
|
|
|
|
ret = 0;
|
|
fail:
|
|
/* disable interrupting */
|
|
global_video_state = NULL;
|
|
|
|
/* close each stream */
|
|
if (is->audio_stream >= 0)
|
|
stream_component_close(is, is->audio_stream);
|
|
if (is->video_stream >= 0)
|
|
stream_component_close(is, is->video_stream);
|
|
if (is->subtitle_stream >= 0)
|
|
stream_component_close(is, is->subtitle_stream);
|
|
if (is->ic) {
|
|
av_close_input_file(is->ic);
|
|
is->ic = NULL; /* safety */
|
|
}
|
|
url_set_interrupt_cb(NULL);
|
|
|
|
if (ret != 0) {
|
|
SDL_Event event;
|
|
|
|
event.type = FF_QUIT_EVENT;
|
|
event.user.data1 = is;
|
|
SDL_PushEvent(&event);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
|
|
{
|
|
VideoState *is;
|
|
|
|
is = av_mallocz(sizeof(VideoState));
|
|
if (!is)
|
|
return NULL;
|
|
pstrcpy(is->filename, sizeof(is->filename), filename);
|
|
is->iformat = iformat;
|
|
if (screen) {
|
|
is->width = screen->w;
|
|
is->height = screen->h;
|
|
}
|
|
is->ytop = 0;
|
|
is->xleft = 0;
|
|
|
|
/* start video display */
|
|
is->pictq_mutex = SDL_CreateMutex();
|
|
is->pictq_cond = SDL_CreateCond();
|
|
|
|
is->subpq_mutex = SDL_CreateMutex();
|
|
is->subpq_cond = SDL_CreateCond();
|
|
|
|
is->subtitle_decoder_mutex = SDL_CreateMutex();
|
|
is->audio_decoder_mutex = SDL_CreateMutex();
|
|
is->video_decoder_mutex = SDL_CreateMutex();
|
|
|
|
/* add the refresh timer to draw the picture */
|
|
schedule_refresh(is, 40);
|
|
|
|
is->av_sync_type = av_sync_type;
|
|
is->parse_tid = SDL_CreateThread(decode_thread, is);
|
|
if (!is->parse_tid) {
|
|
av_free(is);
|
|
return NULL;
|
|
}
|
|
return is;
|
|
}
|
|
|
|
static void stream_close(VideoState *is)
|
|
{
|
|
VideoPicture *vp;
|
|
int i;
|
|
/* XXX: use a special url_shutdown call to abort parse cleanly */
|
|
is->abort_request = 1;
|
|
SDL_WaitThread(is->parse_tid, NULL);
|
|
|
|
/* free all pictures */
|
|
for(i=0;i<VIDEO_PICTURE_QUEUE_SIZE; i++) {
|
|
vp = &is->pictq[i];
|
|
if (vp->bmp) {
|
|
SDL_FreeYUVOverlay(vp->bmp);
|
|
vp->bmp = NULL;
|
|
}
|
|
}
|
|
SDL_DestroyMutex(is->pictq_mutex);
|
|
SDL_DestroyCond(is->pictq_cond);
|
|
SDL_DestroyMutex(is->subpq_mutex);
|
|
SDL_DestroyCond(is->subpq_cond);
|
|
SDL_DestroyMutex(is->subtitle_decoder_mutex);
|
|
SDL_DestroyMutex(is->audio_decoder_mutex);
|
|
SDL_DestroyMutex(is->video_decoder_mutex);
|
|
}
|
|
|
|
static void stream_cycle_channel(VideoState *is, int codec_type)
|
|
{
|
|
AVFormatContext *ic = is->ic;
|
|
int start_index, stream_index;
|
|
AVStream *st;
|
|
|
|
if (codec_type == CODEC_TYPE_VIDEO)
|
|
start_index = is->video_stream;
|
|
else if (codec_type == CODEC_TYPE_AUDIO)
|
|
start_index = is->audio_stream;
|
|
else
|
|
start_index = is->subtitle_stream;
|
|
if (start_index < (codec_type == CODEC_TYPE_SUBTITLE ? -1 : 0))
|
|
return;
|
|
stream_index = start_index;
|
|
for(;;) {
|
|
if (++stream_index >= is->ic->nb_streams)
|
|
{
|
|
if (codec_type == CODEC_TYPE_SUBTITLE)
|
|
{
|
|
stream_index = -1;
|
|
goto the_end;
|
|
} else
|
|
stream_index = 0;
|
|
}
|
|
if (stream_index == start_index)
|
|
return;
|
|
st = ic->streams[stream_index];
|
|
if (st->codec->codec_type == codec_type) {
|
|
/* check that parameters are OK */
|
|
switch(codec_type) {
|
|
case CODEC_TYPE_AUDIO:
|
|
if (st->codec->sample_rate != 0 &&
|
|
st->codec->channels != 0)
|
|
goto the_end;
|
|
break;
|
|
case CODEC_TYPE_VIDEO:
|
|
case CODEC_TYPE_SUBTITLE:
|
|
goto the_end;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
the_end:
|
|
stream_component_close(is, start_index);
|
|
stream_component_open(is, stream_index);
|
|
}
|
|
|
|
|
|
static void toggle_full_screen(void)
|
|
{
|
|
int w, h, flags;
|
|
is_full_screen = !is_full_screen;
|
|
if (!fs_screen_width) {
|
|
/* use default SDL method */
|
|
SDL_WM_ToggleFullScreen(screen);
|
|
} else {
|
|
/* use the recorded resolution */
|
|
flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
|
|
if (is_full_screen) {
|
|
w = fs_screen_width;
|
|
h = fs_screen_height;
|
|
flags |= SDL_FULLSCREEN;
|
|
} else {
|
|
w = screen_width;
|
|
h = screen_height;
|
|
flags |= SDL_RESIZABLE;
|
|
}
|
|
screen = SDL_SetVideoMode(w, h, 0, flags);
|
|
cur_stream->width = w;
|
|
cur_stream->height = h;
|
|
}
|
|
}
|
|
|
|
static void toggle_pause(void)
|
|
{
|
|
if (cur_stream)
|
|
stream_pause(cur_stream);
|
|
step = 0;
|
|
}
|
|
|
|
static void step_to_next_frame(void)
|
|
{
|
|
if (cur_stream) {
|
|
if (cur_stream->paused)
|
|
cur_stream->paused=0;
|
|
cur_stream->video_current_pts = get_video_clock(cur_stream);
|
|
}
|
|
step = 1;
|
|
}
|
|
|
|
static void do_exit(void)
|
|
{
|
|
if (cur_stream) {
|
|
stream_close(cur_stream);
|
|
cur_stream = NULL;
|
|
}
|
|
if (show_status)
|
|
printf("\n");
|
|
SDL_Quit();
|
|
exit(0);
|
|
}
|
|
|
|
static void toggle_audio_display(void)
|
|
{
|
|
if (cur_stream) {
|
|
cur_stream->show_audio = !cur_stream->show_audio;
|
|
}
|
|
}
|
|
|
|
/* handle an event sent by the GUI */
|
|
static void event_loop(void)
|
|
{
|
|
SDL_Event event;
|
|
double incr, pos, frac;
|
|
|
|
for(;;) {
|
|
SDL_WaitEvent(&event);
|
|
switch(event.type) {
|
|
case SDL_KEYDOWN:
|
|
switch(event.key.keysym.sym) {
|
|
case SDLK_ESCAPE:
|
|
case SDLK_q:
|
|
do_exit();
|
|
break;
|
|
case SDLK_f:
|
|
toggle_full_screen();
|
|
break;
|
|
case SDLK_p:
|
|
case SDLK_SPACE:
|
|
toggle_pause();
|
|
break;
|
|
case SDLK_s: //S: Step to next frame
|
|
step_to_next_frame();
|
|
break;
|
|
case SDLK_a:
|
|
if (cur_stream)
|
|
stream_cycle_channel(cur_stream, CODEC_TYPE_AUDIO);
|
|
break;
|
|
case SDLK_v:
|
|
if (cur_stream)
|
|
stream_cycle_channel(cur_stream, CODEC_TYPE_VIDEO);
|
|
break;
|
|
case SDLK_t:
|
|
if (cur_stream)
|
|
stream_cycle_channel(cur_stream, CODEC_TYPE_SUBTITLE);
|
|
break;
|
|
case SDLK_w:
|
|
toggle_audio_display();
|
|
break;
|
|
case SDLK_LEFT:
|
|
incr = -10.0;
|
|
goto do_seek;
|
|
case SDLK_RIGHT:
|
|
incr = 10.0;
|
|
goto do_seek;
|
|
case SDLK_UP:
|
|
incr = 60.0;
|
|
goto do_seek;
|
|
case SDLK_DOWN:
|
|
incr = -60.0;
|
|
do_seek:
|
|
if (cur_stream) {
|
|
pos = get_master_clock(cur_stream);
|
|
pos += incr;
|
|
stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), incr);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case SDL_MOUSEBUTTONDOWN:
|
|
if (cur_stream) {
|
|
int ns, hh, mm, ss;
|
|
int tns, thh, tmm, tss;
|
|
tns = cur_stream->ic->duration/1000000LL;
|
|
thh = tns/3600;
|
|
tmm = (tns%3600)/60;
|
|
tss = (tns%60);
|
|
frac = (double)event.button.x/(double)cur_stream->width;
|
|
ns = frac*tns;
|
|
hh = ns/3600;
|
|
mm = (ns%3600)/60;
|
|
ss = (ns%60);
|
|
fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100,
|
|
hh, mm, ss, thh, tmm, tss);
|
|
stream_seek(cur_stream, (int64_t)(cur_stream->ic->start_time+frac*cur_stream->ic->duration), 0);
|
|
}
|
|
break;
|
|
case SDL_VIDEORESIZE:
|
|
if (cur_stream) {
|
|
screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0,
|
|
SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL);
|
|
cur_stream->width = event.resize.w;
|
|
cur_stream->height = event.resize.h;
|
|
}
|
|
break;
|
|
case SDL_QUIT:
|
|
case FF_QUIT_EVENT:
|
|
do_exit();
|
|
break;
|
|
case FF_ALLOC_EVENT:
|
|
alloc_picture(event.user.data1);
|
|
break;
|
|
case FF_REFRESH_EVENT:
|
|
video_refresh_timer(event.user.data1);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void opt_width(const char *arg)
|
|
{
|
|
screen_width = atoi(arg);
|
|
}
|
|
|
|
void opt_height(const char *arg)
|
|
{
|
|
screen_height = atoi(arg);
|
|
}
|
|
|
|
static void opt_format(const char *arg)
|
|
{
|
|
file_iformat = av_find_input_format(arg);
|
|
if (!file_iformat) {
|
|
fprintf(stderr, "Unknown input format: %s\n", arg);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
static void opt_image_format(const char *arg)
|
|
{
|
|
AVImageFormat *f;
|
|
|
|
for(f = first_image_format; f != NULL; f = f->next) {
|
|
if (!strcmp(arg, f->name))
|
|
break;
|
|
}
|
|
if (!f) {
|
|
fprintf(stderr, "Unknown image format: '%s'\n", arg);
|
|
exit(1);
|
|
}
|
|
image_format = f;
|
|
}
|
|
|
|
#ifdef CONFIG_NETWORK
|
|
void opt_rtp_tcp(void)
|
|
{
|
|
/* only tcp protocol */
|
|
rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
|
|
}
|
|
#endif
|
|
|
|
void opt_sync(const char *arg)
|
|
{
|
|
if (!strcmp(arg, "audio"))
|
|
av_sync_type = AV_SYNC_AUDIO_MASTER;
|
|
else if (!strcmp(arg, "video"))
|
|
av_sync_type = AV_SYNC_VIDEO_MASTER;
|
|
else if (!strcmp(arg, "ext"))
|
|
av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
|
|
else
|
|
show_help();
|
|
}
|
|
|
|
void opt_seek(const char *arg)
|
|
{
|
|
start_time = parse_date(arg, 1);
|
|
}
|
|
|
|
static void opt_debug(const char *arg)
|
|
{
|
|
av_log_set_level(99);
|
|
debug = atoi(arg);
|
|
}
|
|
|
|
static void opt_vismv(const char *arg)
|
|
{
|
|
debug_mv = atoi(arg);
|
|
}
|
|
|
|
static void opt_thread_count(const char *arg)
|
|
{
|
|
thread_count= atoi(arg);
|
|
#if !defined(HAVE_THREADS)
|
|
fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
|
|
#endif
|
|
}
|
|
|
|
const OptionDef options[] = {
|
|
{ "h", 0, {(void*)show_help}, "show help" },
|
|
{ "x", HAS_ARG, {(void*)opt_width}, "force displayed width", "width" },
|
|
{ "y", HAS_ARG, {(void*)opt_height}, "force displayed height", "height" },
|
|
{ "fs", OPT_BOOL, {(void*)&is_full_screen}, "force full screen" },
|
|
{ "an", OPT_BOOL, {(void*)&audio_disable}, "disable audio" },
|
|
{ "vn", OPT_BOOL, {(void*)&video_disable}, "disable video" },
|
|
{ "ss", HAS_ARG, {(void*)&opt_seek}, "seek to a given position in seconds", "pos" },
|
|
{ "nodisp", OPT_BOOL, {(void*)&display_disable}, "disable graphical display" },
|
|
{ "f", HAS_ARG, {(void*)opt_format}, "force format", "fmt" },
|
|
{ "img", HAS_ARG, {(void*)opt_image_format}, "force image format", "img_fmt" },
|
|
{ "stats", OPT_BOOL | OPT_EXPERT, {(void*)&show_status}, "show status", "" },
|
|
{ "debug", HAS_ARG | OPT_EXPERT, {(void*)opt_debug}, "print specific debug info", "" },
|
|
{ "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
|
|
{ "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
|
|
{ "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
|
|
{ "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
|
|
{ "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
|
|
{ "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
|
|
{ "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
|
|
{ "skipidct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_idct}, "", "" },
|
|
{ "idct", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&idct}, "set idct algo", "algo" },
|
|
{ "er", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_resilience}, "set error detection threshold (0-4)", "threshold" },
|
|
{ "ec", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&error_concealment}, "set error concealment options", "bit_mask" },
|
|
#ifdef CONFIG_NETWORK
|
|
{ "rtp_tcp", OPT_EXPERT, {(void*)&opt_rtp_tcp}, "force RTP/TCP protocol usage", "" },
|
|
#endif
|
|
{ "sync", HAS_ARG | OPT_EXPERT, {(void*)opt_sync}, "set audio-video sync. type (type=audio/video/ext)", "type" },
|
|
{ "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
|
|
{ NULL, },
|
|
};
|
|
|
|
void show_help(void)
|
|
{
|
|
printf("ffplay version " FFMPEG_VERSION ", Copyright (c) 2003 Fabrice Bellard\n"
|
|
"usage: ffplay [options] input_file\n"
|
|
"Simple media player\n");
|
|
printf("\n");
|
|
show_help_options(options, "Main options:\n",
|
|
OPT_EXPERT, 0);
|
|
show_help_options(options, "\nAdvanced options:\n",
|
|
OPT_EXPERT, OPT_EXPERT);
|
|
printf("\nWhile playing:\n"
|
|
"q, ESC quit\n"
|
|
"f toggle full screen\n"
|
|
"p, SPC pause\n"
|
|
"a cycle audio channel\n"
|
|
"v cycle video channel\n"
|
|
"t cycle subtitle channel\n"
|
|
"w show audio waves\n"
|
|
"left/right seek backward/forward 10 seconds\n"
|
|
"down/up seek backward/forward 1 minute\n"
|
|
"mouse click seek to percentage in file corresponding to fraction of width\n"
|
|
);
|
|
exit(1);
|
|
}
|
|
|
|
void parse_arg_file(const char *filename)
|
|
{
|
|
if (!strcmp(filename, "-"))
|
|
filename = "pipe:";
|
|
input_filename = filename;
|
|
}
|
|
|
|
/* Called from the main */
|
|
int main(int argc, char **argv)
|
|
{
|
|
int flags, w, h;
|
|
|
|
/* register all codecs, demux and protocols */
|
|
av_register_all();
|
|
|
|
#ifdef CONFIG_OS2
|
|
MorphToPM(); // Morph the VIO application to a PM one to be able to use Win* functions
|
|
|
|
// Make stdout and stderr unbuffered
|
|
setbuf( stdout, NULL );
|
|
setbuf( stderr, NULL );
|
|
#endif
|
|
|
|
parse_options(argc, argv, options);
|
|
|
|
if (!input_filename)
|
|
show_help();
|
|
|
|
if (display_disable) {
|
|
video_disable = 1;
|
|
}
|
|
flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
|
|
#if !defined(CONFIG_WIN32) && !defined(CONFIG_DARWIN)
|
|
flags |= SDL_INIT_EVENTTHREAD; /* Not supported on win32 or darwin */
|
|
#endif
|
|
if (SDL_Init (flags)) {
|
|
fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError());
|
|
exit(1);
|
|
}
|
|
|
|
if (!display_disable) {
|
|
#ifdef HAVE_SDL_VIDEO_SIZE
|
|
const SDL_VideoInfo *vi = SDL_GetVideoInfo();
|
|
fs_screen_width = vi->current_w;
|
|
fs_screen_height = vi->current_h;
|
|
#endif
|
|
flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
|
|
if (is_full_screen && fs_screen_width) {
|
|
w = fs_screen_width;
|
|
h = fs_screen_height;
|
|
flags |= SDL_FULLSCREEN;
|
|
} else {
|
|
w = screen_width;
|
|
h = screen_height;
|
|
flags |= SDL_RESIZABLE;
|
|
}
|
|
#ifndef CONFIG_DARWIN
|
|
screen = SDL_SetVideoMode(w, h, 0, flags);
|
|
#else
|
|
/* setting bits_per_pixel = 0 or 32 causes blank video on OS X */
|
|
screen = SDL_SetVideoMode(w, h, 24, flags);
|
|
#endif
|
|
if (!screen) {
|
|
fprintf(stderr, "SDL: could not set video mode - exiting\n");
|
|
exit(1);
|
|
}
|
|
SDL_WM_SetCaption("FFplay", "FFplay");
|
|
}
|
|
|
|
SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE);
|
|
SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
|
|
SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
|
|
SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
|
|
|
|
cur_stream = stream_open(input_filename, file_iformat);
|
|
|
|
event_loop();
|
|
|
|
/* never returns */
|
|
|
|
return 0;
|
|
}
|