2016-03-02 13:11:40 +01:00
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/*
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* copyright (c) 2015 Rick Kern <kernrj@gmail.com>
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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 <VideoToolbox/VideoToolbox.h>
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#include <CoreVideo/CoreVideo.h>
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#include <CoreMedia/CoreMedia.h>
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#include <TargetConditionals.h>
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#include <Availability.h>
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#include "avcodec.h"
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#include "libavutil/opt.h"
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#include "libavutil/avassert.h"
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#include "libavutil/atomic.h"
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#include "libavutil/avstring.h"
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#include "libavcodec/avcodec.h"
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2016-04-27 16:53:04 +02:00
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#include "libavutil/pixdesc.h"
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2016-03-02 13:11:40 +01:00
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#include "internal.h"
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#include <pthread.h>
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typedef enum VT_H264Profile {
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H264_PROF_AUTO,
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H264_PROF_BASELINE,
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H264_PROF_MAIN,
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H264_PROF_HIGH,
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H264_PROF_COUNT
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} VT_H264Profile;
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static const uint8_t start_code[] = { 0, 0, 0, 1 };
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typedef struct BufNode {
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CMSampleBufferRef cm_buffer;
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struct BufNode* next;
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int error;
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} BufNode;
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typedef struct VTEncContext {
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AVClass *class;
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VTCompressionSessionRef session;
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pthread_mutex_t lock;
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pthread_cond_t cv_sample_sent;
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int async_error;
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BufNode *q_head;
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BufNode *q_tail;
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int64_t frame_ct_out;
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int64_t frame_ct_in;
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int64_t first_pts;
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int64_t dts_delta;
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int64_t profile;
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int64_t level;
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bool flushing;
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bool has_b_frames;
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bool warned_color_range;
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} VTEncContext;
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2016-04-27 16:53:04 +02:00
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/**
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* NULL-safe release of *refPtr, and sets value to NULL.
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*/
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static void vt_release_num(CFNumberRef* refPtr){
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if (!*refPtr) {
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return;
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}
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CFRelease(*refPtr);
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*refPtr = NULL;
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}
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2016-03-02 13:11:40 +01:00
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static void set_async_error(VTEncContext *vtctx, int err)
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{
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BufNode *info;
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pthread_mutex_lock(&vtctx->lock);
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vtctx->async_error = err;
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info = vtctx->q_head;
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vtctx->q_head = vtctx->q_tail = NULL;
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while (info) {
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BufNode *next = info->next;
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CFRelease(info->cm_buffer);
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av_free(info);
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info = next;
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}
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pthread_mutex_unlock(&vtctx->lock);
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}
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static int vtenc_q_pop(VTEncContext *vtctx, bool wait, CMSampleBufferRef *buf)
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{
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BufNode *info;
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pthread_mutex_lock(&vtctx->lock);
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if (vtctx->async_error) {
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pthread_mutex_unlock(&vtctx->lock);
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return vtctx->async_error;
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}
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if (vtctx->flushing && vtctx->frame_ct_in == vtctx->frame_ct_out) {
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*buf = NULL;
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pthread_mutex_unlock(&vtctx->lock);
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return 0;
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}
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while (!vtctx->q_head && !vtctx->async_error && wait) {
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pthread_cond_wait(&vtctx->cv_sample_sent, &vtctx->lock);
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}
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if (!vtctx->q_head) {
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pthread_mutex_unlock(&vtctx->lock);
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*buf = NULL;
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return 0;
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}
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info = vtctx->q_head;
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vtctx->q_head = vtctx->q_head->next;
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if (!vtctx->q_head) {
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vtctx->q_tail = NULL;
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}
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pthread_mutex_unlock(&vtctx->lock);
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*buf = info->cm_buffer;
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av_free(info);
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vtctx->frame_ct_out++;
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return 0;
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}
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static void vtenc_q_push(VTEncContext *vtctx, CMSampleBufferRef buffer)
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{
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BufNode *info = av_malloc(sizeof(BufNode));
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if (!info) {
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set_async_error(vtctx, AVERROR(ENOMEM));
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return;
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}
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CFRetain(buffer);
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info->cm_buffer = buffer;
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info->next = NULL;
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pthread_mutex_lock(&vtctx->lock);
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pthread_cond_signal(&vtctx->cv_sample_sent);
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if (!vtctx->q_head) {
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vtctx->q_head = info;
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} else {
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vtctx->q_tail->next = info;
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}
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vtctx->q_tail = info;
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pthread_mutex_unlock(&vtctx->lock);
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}
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static CMVideoCodecType get_cm_codec_type(enum AVCodecID id)
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{
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switch (id) {
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case AV_CODEC_ID_H264: return kCMVideoCodecType_H264;
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default: return 0;
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}
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}
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static void vtenc_free_block(void *opaque, uint8_t *data)
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{
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CMBlockBufferRef block = opaque;
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CFRelease(block);
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}
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/**
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* Get the parameter sets from a CMSampleBufferRef.
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* @param dst If *dst isn't NULL, the parameters are copied into existing
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* memory. *dst_size must be set accordingly when *dst != NULL.
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* If *dst is NULL, it will be allocated.
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* In all cases, *dst_size is set to the number of bytes used starting
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* at *dst.
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*/
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static int get_params_size(
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AVCodecContext *avctx,
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CMVideoFormatDescriptionRef vid_fmt,
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size_t *size)
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{
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size_t total_size = 0;
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size_t ps_count;
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2016-03-24 18:56:04 +01:00
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int is_count_bad = 0;
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2016-03-02 13:11:40 +01:00
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size_t i;
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int status;
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status = CMVideoFormatDescriptionGetH264ParameterSetAtIndex(vid_fmt,
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0,
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NULL,
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NULL,
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&ps_count,
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NULL);
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if (status) {
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2016-03-24 18:56:04 +01:00
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is_count_bad = 1;
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ps_count = 0;
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status = 0;
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2016-03-02 13:11:40 +01:00
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}
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2016-03-24 18:56:04 +01:00
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for (i = 0; i < ps_count || is_count_bad; i++) {
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2016-03-02 13:11:40 +01:00
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const uint8_t *ps;
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size_t ps_size;
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status = CMVideoFormatDescriptionGetH264ParameterSetAtIndex(vid_fmt,
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i,
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&ps,
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&ps_size,
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NULL,
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NULL);
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2016-03-24 18:56:04 +01:00
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if (status) {
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/*
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* When ps_count is invalid, status != 0 ends the loop normally
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* unless we didn't get any parameter sets.
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*/
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if (i > 0 && is_count_bad) status = 0;
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break;
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2016-03-02 13:11:40 +01:00
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}
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total_size += ps_size + sizeof(start_code);
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}
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2016-03-24 18:56:04 +01:00
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if (status) {
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av_log(avctx, AV_LOG_ERROR, "Error getting parameter set sizes: %d\n", status);
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return AVERROR_EXTERNAL;
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}
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2016-03-02 13:11:40 +01:00
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*size = total_size;
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return 0;
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}
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static int copy_param_sets(
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AVCodecContext *avctx,
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CMVideoFormatDescriptionRef vid_fmt,
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uint8_t *dst,
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size_t dst_size)
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{
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size_t ps_count;
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2016-03-24 18:56:04 +01:00
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int is_count_bad = 0;
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2016-03-02 13:11:40 +01:00
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int status;
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size_t offset = 0;
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size_t i;
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status = CMVideoFormatDescriptionGetH264ParameterSetAtIndex(vid_fmt,
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0,
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NULL,
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NULL,
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&ps_count,
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NULL);
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if (status) {
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2016-03-24 18:56:04 +01:00
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is_count_bad = 1;
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ps_count = 0;
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status = 0;
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2016-03-02 13:11:40 +01:00
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}
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2016-03-24 18:56:04 +01:00
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for (i = 0; i < ps_count || is_count_bad; i++) {
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2016-03-02 13:11:40 +01:00
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const uint8_t *ps;
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size_t ps_size;
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size_t next_offset;
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status = CMVideoFormatDescriptionGetH264ParameterSetAtIndex(vid_fmt,
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i,
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&ps,
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&ps_size,
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NULL,
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NULL);
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if (status) {
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2016-03-24 18:56:04 +01:00
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if (i > 0 && is_count_bad) status = 0;
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break;
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2016-03-02 13:11:40 +01:00
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}
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next_offset = offset + sizeof(start_code) + ps_size;
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if (dst_size < next_offset) {
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av_log(avctx, AV_LOG_ERROR, "Error: buffer too small for parameter sets.\n");
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return AVERROR_BUFFER_TOO_SMALL;
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}
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memcpy(dst + offset, start_code, sizeof(start_code));
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offset += sizeof(start_code);
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memcpy(dst + offset, ps, ps_size);
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offset = next_offset;
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}
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2016-03-24 18:56:04 +01:00
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if (status) {
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av_log(avctx, AV_LOG_ERROR, "Error getting parameter set data: %d\n", status);
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return AVERROR_EXTERNAL;
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}
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2016-03-02 13:11:40 +01:00
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return 0;
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}
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static int set_extradata(AVCodecContext *avctx, CMSampleBufferRef sample_buffer)
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{
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CMVideoFormatDescriptionRef vid_fmt;
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size_t total_size;
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int status;
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vid_fmt = CMSampleBufferGetFormatDescription(sample_buffer);
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if (!vid_fmt) {
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av_log(avctx, AV_LOG_ERROR, "No video format.\n");
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return AVERROR_EXTERNAL;
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}
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status = get_params_size(avctx, vid_fmt, &total_size);
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if (status) {
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av_log(avctx, AV_LOG_ERROR, "Could not get parameter sets.\n");
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return status;
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}
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avctx->extradata = av_malloc(total_size);
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if (!avctx->extradata) {
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return AVERROR(ENOMEM);
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}
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avctx->extradata_size = total_size;
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status = copy_param_sets(avctx, vid_fmt, avctx->extradata, total_size);
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if (status) {
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av_log(avctx, AV_LOG_ERROR, "Could not copy param sets.\n");
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return status;
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}
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return 0;
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}
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static void vtenc_output_callback(
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2016-03-03 04:44:28 +01:00
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void *ctx,
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2016-03-02 13:11:40 +01:00
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void *sourceFrameCtx,
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OSStatus status,
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VTEncodeInfoFlags flags,
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2016-03-03 04:44:28 +01:00
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CMSampleBufferRef sample_buffer)
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2016-03-02 13:11:40 +01:00
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{
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AVCodecContext *avctx = ctx;
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VTEncContext *vtctx = avctx->priv_data;
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if (vtctx->async_error) {
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if(sample_buffer) CFRelease(sample_buffer);
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return;
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}
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if (status || !sample_buffer) {
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av_log(avctx, AV_LOG_ERROR, "Error encoding frame: %d\n", (int)status);
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set_async_error(vtctx, AVERROR_EXTERNAL);
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return;
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}
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if (!avctx->extradata && (avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER)) {
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int set_status = set_extradata(avctx, sample_buffer);
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if (set_status) {
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set_async_error(vtctx, set_status);
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return;
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}
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}
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|
|
|
vtenc_q_push(vtctx, sample_buffer);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int get_length_code_size(
|
|
|
|
AVCodecContext *avctx,
|
|
|
|
CMSampleBufferRef sample_buffer,
|
|
|
|
size_t *size)
|
|
|
|
{
|
|
|
|
CMVideoFormatDescriptionRef vid_fmt;
|
|
|
|
int isize;
|
|
|
|
int status;
|
|
|
|
|
|
|
|
vid_fmt = CMSampleBufferGetFormatDescription(sample_buffer);
|
|
|
|
if (!vid_fmt) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error getting buffer format description.\n");
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
status = CMVideoFormatDescriptionGetH264ParameterSetAtIndex(vid_fmt,
|
|
|
|
0,
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
&isize);
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error getting length code size: %d\n", status);
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
*size = isize;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Returns true on success.
|
|
|
|
*
|
|
|
|
* If profile_level_val is NULL and this method returns true, don't specify the
|
|
|
|
* profile/level to the encoder.
|
|
|
|
*/
|
|
|
|
static bool get_vt_profile_level(AVCodecContext *avctx,
|
|
|
|
CFStringRef *profile_level_val)
|
|
|
|
{
|
|
|
|
VTEncContext *vtctx = avctx->priv_data;
|
|
|
|
int64_t profile = vtctx->profile;
|
|
|
|
|
|
|
|
if (profile == H264_PROF_AUTO && vtctx->level) {
|
|
|
|
//Need to pick a profile if level is not auto-selected.
|
|
|
|
profile = vtctx->has_b_frames ? H264_PROF_MAIN : H264_PROF_BASELINE;
|
|
|
|
}
|
|
|
|
|
|
|
|
*profile_level_val = NULL;
|
|
|
|
|
|
|
|
switch (profile) {
|
|
|
|
case H264_PROF_AUTO:
|
|
|
|
return true;
|
|
|
|
|
|
|
|
case H264_PROF_BASELINE:
|
|
|
|
switch (vtctx->level) {
|
|
|
|
case 0: *profile_level_val = kVTProfileLevel_H264_Baseline_AutoLevel; break;
|
|
|
|
case 13: *profile_level_val = kVTProfileLevel_H264_Baseline_1_3; break;
|
|
|
|
case 30: *profile_level_val = kVTProfileLevel_H264_Baseline_3_0; break;
|
|
|
|
case 31: *profile_level_val = kVTProfileLevel_H264_Baseline_3_1; break;
|
|
|
|
case 32: *profile_level_val = kVTProfileLevel_H264_Baseline_3_2; break;
|
|
|
|
case 40: *profile_level_val = kVTProfileLevel_H264_Baseline_4_0; break;
|
|
|
|
case 41: *profile_level_val = kVTProfileLevel_H264_Baseline_4_1; break;
|
|
|
|
case 42: *profile_level_val = kVTProfileLevel_H264_Baseline_4_2; break;
|
|
|
|
case 50: *profile_level_val = kVTProfileLevel_H264_Baseline_5_0; break;
|
|
|
|
case 51: *profile_level_val = kVTProfileLevel_H264_Baseline_5_1; break;
|
|
|
|
case 52: *profile_level_val = kVTProfileLevel_H264_Baseline_5_2; break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case H264_PROF_MAIN:
|
|
|
|
switch (vtctx->level) {
|
|
|
|
case 0: *profile_level_val = kVTProfileLevel_H264_Main_AutoLevel; break;
|
|
|
|
case 30: *profile_level_val = kVTProfileLevel_H264_Main_3_0; break;
|
|
|
|
case 31: *profile_level_val = kVTProfileLevel_H264_Main_3_1; break;
|
|
|
|
case 32: *profile_level_val = kVTProfileLevel_H264_Main_3_2; break;
|
|
|
|
case 40: *profile_level_val = kVTProfileLevel_H264_Main_4_0; break;
|
|
|
|
case 41: *profile_level_val = kVTProfileLevel_H264_Main_4_1; break;
|
|
|
|
case 42: *profile_level_val = kVTProfileLevel_H264_Main_4_2; break;
|
|
|
|
case 50: *profile_level_val = kVTProfileLevel_H264_Main_5_0; break;
|
|
|
|
case 51: *profile_level_val = kVTProfileLevel_H264_Main_5_1; break;
|
|
|
|
case 52: *profile_level_val = kVTProfileLevel_H264_Main_5_2; break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case H264_PROF_HIGH:
|
|
|
|
switch (vtctx->level) {
|
|
|
|
case 0: *profile_level_val = kVTProfileLevel_H264_High_AutoLevel; break;
|
|
|
|
case 30: *profile_level_val = kVTProfileLevel_H264_High_3_0; break;
|
|
|
|
case 31: *profile_level_val = kVTProfileLevel_H264_High_3_1; break;
|
|
|
|
case 32: *profile_level_val = kVTProfileLevel_H264_High_3_2; break;
|
|
|
|
case 40: *profile_level_val = kVTProfileLevel_H264_High_4_0; break;
|
|
|
|
case 41: *profile_level_val = kVTProfileLevel_H264_High_4_1; break;
|
|
|
|
case 42: *profile_level_val = kVTProfileLevel_H264_High_4_2; break;
|
|
|
|
case 50: *profile_level_val = kVTProfileLevel_H264_High_5_0; break;
|
|
|
|
case 51: *profile_level_val = kVTProfileLevel_H264_High_5_1; break;
|
|
|
|
case 52: *profile_level_val = kVTProfileLevel_H264_High_5_2; break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!*profile_level_val) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid Profile/Level.\n");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2016-04-27 16:53:04 +02:00
|
|
|
static int get_cv_pixel_format(AVCodecContext* avctx,
|
|
|
|
enum AVPixelFormat fmt,
|
|
|
|
enum AVColorRange range,
|
|
|
|
int* av_pixel_format,
|
|
|
|
int* range_guessed)
|
|
|
|
{
|
|
|
|
if (range_guessed) *range_guessed = range != AVCOL_RANGE_MPEG &&
|
|
|
|
range != AVCOL_RANGE_JPEG;
|
|
|
|
|
|
|
|
//MPEG range is used when no range is set
|
|
|
|
if (fmt == AV_PIX_FMT_NV12) {
|
|
|
|
*av_pixel_format = range == AVCOL_RANGE_JPEG ?
|
|
|
|
kCVPixelFormatType_420YpCbCr8BiPlanarFullRange :
|
|
|
|
kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
|
|
|
|
} else if (fmt == AV_PIX_FMT_YUV420P) {
|
|
|
|
*av_pixel_format = range == AVCOL_RANGE_JPEG ?
|
|
|
|
kCVPixelFormatType_420YpCbCr8PlanarFullRange :
|
|
|
|
kCVPixelFormatType_420YpCbCr8Planar;
|
|
|
|
} else {
|
|
|
|
return AVERROR(EINVAL);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int create_cv_pixel_buffer_info(AVCodecContext* avctx,
|
|
|
|
CFMutableDictionaryRef* dict)
|
|
|
|
{
|
|
|
|
CFNumberRef cv_color_format_num = NULL;
|
|
|
|
CFNumberRef width_num = NULL;
|
|
|
|
CFNumberRef height_num = NULL;
|
|
|
|
CFMutableDictionaryRef pixel_buffer_info = NULL;
|
|
|
|
int cv_color_format;
|
|
|
|
int status = get_cv_pixel_format(avctx,
|
|
|
|
avctx->pix_fmt,
|
|
|
|
avctx->color_range,
|
|
|
|
&cv_color_format,
|
|
|
|
NULL);
|
|
|
|
if (status) return status;
|
|
|
|
|
|
|
|
pixel_buffer_info = CFDictionaryCreateMutable(
|
|
|
|
kCFAllocatorDefault,
|
|
|
|
20,
|
|
|
|
&kCFCopyStringDictionaryKeyCallBacks,
|
|
|
|
&kCFTypeDictionaryValueCallBacks);
|
|
|
|
|
|
|
|
if (!pixel_buffer_info) goto pbinfo_nomem;
|
|
|
|
|
|
|
|
cv_color_format_num = CFNumberCreate(kCFAllocatorDefault,
|
|
|
|
kCFNumberSInt32Type,
|
|
|
|
&cv_color_format);
|
|
|
|
if (!cv_color_format_num) goto pbinfo_nomem;
|
|
|
|
|
|
|
|
CFDictionarySetValue(pixel_buffer_info,
|
|
|
|
kCVPixelBufferPixelFormatTypeKey,
|
|
|
|
cv_color_format_num);
|
|
|
|
vt_release_num(&cv_color_format_num);
|
|
|
|
|
|
|
|
width_num = CFNumberCreate(kCFAllocatorDefault,
|
|
|
|
kCFNumberSInt32Type,
|
|
|
|
&avctx->width);
|
|
|
|
if (!width_num) return AVERROR(ENOMEM);
|
|
|
|
|
|
|
|
CFDictionarySetValue(pixel_buffer_info,
|
|
|
|
kCVPixelBufferWidthKey,
|
|
|
|
width_num);
|
|
|
|
vt_release_num(&width_num);
|
|
|
|
|
|
|
|
height_num = CFNumberCreate(kCFAllocatorDefault,
|
|
|
|
kCFNumberSInt32Type,
|
|
|
|
&avctx->height);
|
|
|
|
if (!height_num) goto pbinfo_nomem;
|
|
|
|
|
|
|
|
CFDictionarySetValue(pixel_buffer_info,
|
|
|
|
kCVPixelBufferHeightKey,
|
|
|
|
height_num);
|
|
|
|
vt_release_num(&height_num);
|
|
|
|
|
|
|
|
*dict = pixel_buffer_info;
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
pbinfo_nomem:
|
|
|
|
vt_release_num(&cv_color_format_num);
|
|
|
|
vt_release_num(&width_num);
|
|
|
|
vt_release_num(&height_num);
|
|
|
|
if (pixel_buffer_info) CFRelease(pixel_buffer_info);
|
|
|
|
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
|
|
|
|
2016-03-02 13:11:40 +01:00
|
|
|
static av_cold int vtenc_init(AVCodecContext *avctx)
|
|
|
|
{
|
|
|
|
CFMutableDictionaryRef enc_info;
|
2016-04-27 16:53:04 +02:00
|
|
|
CFMutableDictionaryRef pixel_buffer_info;
|
2016-03-02 13:11:40 +01:00
|
|
|
CMVideoCodecType codec_type;
|
|
|
|
VTEncContext *vtctx = avctx->priv_data;
|
|
|
|
CFStringRef profile_level;
|
|
|
|
SInt32 bit_rate = avctx->bit_rate;
|
|
|
|
CFNumberRef bit_rate_num;
|
|
|
|
int status;
|
|
|
|
|
|
|
|
codec_type = get_cm_codec_type(avctx->codec_id);
|
|
|
|
if (!codec_type) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error: no mapping for AVCodecID %d\n", avctx->codec_id);
|
|
|
|
return AVERROR(EINVAL);
|
|
|
|
}
|
|
|
|
|
|
|
|
vtctx->has_b_frames = avctx->has_b_frames || avctx->max_b_frames > 0;
|
|
|
|
if(vtctx->has_b_frames && vtctx->profile == H264_PROF_BASELINE){
|
|
|
|
av_log(avctx, AV_LOG_WARNING, "Cannot use B-frames with baseline profile. Output will not contain B-frames.\n");
|
|
|
|
vtctx->has_b_frames = false;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!get_vt_profile_level(avctx, &profile_level)) return AVERROR(EINVAL);
|
|
|
|
|
|
|
|
vtctx->session = NULL;
|
|
|
|
|
|
|
|
enc_info = CFDictionaryCreateMutable(
|
|
|
|
kCFAllocatorDefault,
|
|
|
|
20,
|
|
|
|
&kCFCopyStringDictionaryKeyCallBacks,
|
|
|
|
&kCFTypeDictionaryValueCallBacks
|
|
|
|
);
|
|
|
|
|
|
|
|
if (!enc_info) return AVERROR(ENOMEM);
|
|
|
|
|
|
|
|
#if !TARGET_OS_IPHONE
|
|
|
|
CFDictionarySetValue(enc_info, kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder, kCFBooleanTrue);
|
|
|
|
CFDictionarySetValue(enc_info, kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder, kCFBooleanTrue);
|
|
|
|
#endif
|
|
|
|
|
2016-04-27 16:53:05 +02:00
|
|
|
if (avctx->pix_fmt != AV_PIX_FMT_VIDEOTOOLBOX) {
|
|
|
|
status = create_cv_pixel_buffer_info(avctx, &pixel_buffer_info);
|
|
|
|
if (status) {
|
|
|
|
CFRelease(enc_info);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
pixel_buffer_info = NULL;
|
2016-04-27 16:53:04 +02:00
|
|
|
}
|
|
|
|
|
2016-03-02 13:11:40 +01:00
|
|
|
status = VTCompressionSessionCreate(
|
|
|
|
kCFAllocatorDefault,
|
|
|
|
avctx->width,
|
|
|
|
avctx->height,
|
|
|
|
codec_type,
|
|
|
|
enc_info,
|
2016-04-27 16:53:04 +02:00
|
|
|
pixel_buffer_info,
|
2016-03-02 13:11:40 +01:00
|
|
|
kCFAllocatorDefault,
|
|
|
|
vtenc_output_callback,
|
|
|
|
avctx,
|
|
|
|
&vtctx->session
|
|
|
|
);
|
|
|
|
|
|
|
|
#if !TARGET_OS_IPHONE
|
|
|
|
if (status != 0 || !vtctx->session) {
|
|
|
|
CFDictionaryRemoveValue(enc_info, kVTVideoEncoderSpecification_RequireHardwareAcceleratedVideoEncoder);
|
|
|
|
|
|
|
|
status = VTCompressionSessionCreate(
|
|
|
|
kCFAllocatorDefault,
|
|
|
|
avctx->width,
|
|
|
|
avctx->height,
|
|
|
|
codec_type,
|
|
|
|
enc_info,
|
|
|
|
NULL,
|
|
|
|
kCFAllocatorDefault,
|
|
|
|
vtenc_output_callback,
|
|
|
|
avctx,
|
|
|
|
&vtctx->session
|
|
|
|
);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2016-04-27 16:53:05 +02:00
|
|
|
if (pixel_buffer_info) CFRelease(pixel_buffer_info);
|
2016-03-02 13:11:40 +01:00
|
|
|
CFRelease(enc_info);
|
|
|
|
|
|
|
|
if (status || !vtctx->session) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error: cannot create compression session: %d\n", status);
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
bit_rate_num = CFNumberCreate(kCFAllocatorDefault,
|
|
|
|
kCFNumberSInt32Type,
|
|
|
|
&bit_rate);
|
|
|
|
if (!bit_rate_num) return AVERROR(ENOMEM);
|
|
|
|
|
|
|
|
status = VTSessionSetProperty(vtctx->session,
|
|
|
|
kVTCompressionPropertyKey_AverageBitRate,
|
|
|
|
bit_rate_num);
|
|
|
|
CFRelease(bit_rate_num);
|
|
|
|
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error setting bitrate property: %d\n", status);
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (profile_level) {
|
|
|
|
status = VTSessionSetProperty(vtctx->session,
|
|
|
|
kVTCompressionPropertyKey_ProfileLevel,
|
|
|
|
profile_level);
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error setting profile/level property: %d\n", status);
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (avctx->gop_size > 0) {
|
|
|
|
CFNumberRef interval = CFNumberCreate(kCFAllocatorDefault,
|
|
|
|
kCFNumberIntType,
|
|
|
|
&avctx->gop_size);
|
|
|
|
status = VTSessionSetProperty(vtctx->session,
|
|
|
|
kVTCompressionPropertyKey_MaxKeyFrameInterval,
|
|
|
|
interval);
|
|
|
|
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error setting 'max key-frame interval' property: %d\n", status);
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!vtctx->has_b_frames) {
|
|
|
|
status = VTSessionSetProperty(vtctx->session,
|
|
|
|
kVTCompressionPropertyKey_AllowFrameReordering,
|
|
|
|
kCFBooleanFalse);
|
|
|
|
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error setting 'allow frame reordering' property: %d\n", status);
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
status = VTCompressionSessionPrepareToEncodeFrames(vtctx->session);
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error: cannot prepare encoder: %d\n", status);
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
pthread_mutex_init(&vtctx->lock, NULL);
|
|
|
|
pthread_cond_init(&vtctx->cv_sample_sent, NULL);
|
|
|
|
vtctx->dts_delta = vtctx->has_b_frames ? -1 : 0;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void vtenc_get_frame_info(CMSampleBufferRef buffer, bool *is_key_frame)
|
|
|
|
{
|
|
|
|
CFArrayRef attachments;
|
|
|
|
CFDictionaryRef attachment;
|
|
|
|
CFBooleanRef not_sync;
|
|
|
|
CFIndex len;
|
|
|
|
|
|
|
|
attachments = CMSampleBufferGetSampleAttachmentsArray(buffer, false);
|
|
|
|
len = !attachments ? 0 : CFArrayGetCount(attachments);
|
|
|
|
|
|
|
|
if (!len) {
|
|
|
|
*is_key_frame = true;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
attachment = CFArrayGetValueAtIndex(attachments, 0);
|
|
|
|
|
|
|
|
if (CFDictionaryGetValueIfPresent(attachment,
|
|
|
|
kCMSampleAttachmentKey_NotSync,
|
|
|
|
(const void **)¬_sync))
|
|
|
|
{
|
|
|
|
*is_key_frame = !CFBooleanGetValue(not_sync);
|
|
|
|
} else {
|
|
|
|
*is_key_frame = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Replaces length codes with H.264 Annex B start codes.
|
|
|
|
* length_code_size must equal sizeof(start_code).
|
|
|
|
* On failure, the contents of data may have been modified.
|
|
|
|
*
|
|
|
|
* @param length_code_size Byte length of each length code
|
|
|
|
* @param data Call with NAL units prefixed with length codes.
|
|
|
|
* On success, the length codes are replace with
|
|
|
|
* start codes.
|
|
|
|
* @param size Length of data, excluding any padding.
|
|
|
|
* @return 0 on success
|
|
|
|
* AVERROR_BUFFER_TOO_SMALL if length code size is smaller
|
|
|
|
* than a start code or if a length_code in data specifies
|
|
|
|
* data beyond the end of its buffer.
|
|
|
|
*/
|
|
|
|
static int replace_length_codes(size_t length_code_size,
|
|
|
|
uint8_t *data,
|
|
|
|
size_t size)
|
|
|
|
{
|
|
|
|
size_t remaining_size = size;
|
|
|
|
|
|
|
|
if (length_code_size != sizeof(start_code)) {
|
|
|
|
av_log(NULL, AV_LOG_ERROR, "Start code size and length code size not equal.\n");
|
|
|
|
return AVERROR_BUFFER_TOO_SMALL;
|
|
|
|
}
|
|
|
|
|
|
|
|
while (remaining_size > 0) {
|
|
|
|
size_t box_len = 0;
|
|
|
|
size_t i;
|
|
|
|
|
|
|
|
for (i = 0; i < length_code_size; i++) {
|
|
|
|
box_len <<= 8;
|
|
|
|
box_len |= data[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
if (remaining_size < box_len + sizeof(start_code)) {
|
|
|
|
av_log(NULL, AV_LOG_ERROR, "Length is out of range.\n");
|
|
|
|
AVERROR_BUFFER_TOO_SMALL;
|
|
|
|
}
|
|
|
|
|
|
|
|
memcpy(data, start_code, sizeof(start_code));
|
|
|
|
data += box_len + sizeof(start_code);
|
|
|
|
remaining_size -= box_len + sizeof(start_code);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Copies NAL units and replaces length codes with
|
|
|
|
* H.264 Annex B start codes. On failure, the contents of
|
|
|
|
* dst_data may have been modified.
|
|
|
|
*
|
|
|
|
* @param length_code_size Byte length of each length code
|
|
|
|
* @param src_data NAL units prefixed with length codes.
|
|
|
|
* @param src_size Length of buffer, excluding any padding.
|
|
|
|
* @param dst_data Must be zeroed before calling this function.
|
|
|
|
* Contains the copied NAL units prefixed with
|
|
|
|
* start codes when the function returns
|
|
|
|
* successfully.
|
|
|
|
* @param dst_size Length of dst_data
|
|
|
|
* @return 0 on success
|
|
|
|
* AVERROR_INVALIDDATA if length_code_size is invalid
|
|
|
|
* AVERROR_BUFFER_TOO_SMALL if dst_data is too small
|
|
|
|
* or if a length_code in src_data specifies data beyond
|
|
|
|
* the end of its buffer.
|
|
|
|
*/
|
|
|
|
static int copy_replace_length_codes(
|
|
|
|
size_t length_code_size,
|
|
|
|
const uint8_t *src_data,
|
|
|
|
size_t src_size,
|
|
|
|
uint8_t *dst_data,
|
|
|
|
size_t dst_size)
|
|
|
|
{
|
|
|
|
size_t remaining_src_size = src_size;
|
|
|
|
size_t remaining_dst_size = dst_size;
|
|
|
|
|
|
|
|
if (length_code_size > 4) {
|
|
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
while (remaining_src_size > 0) {
|
|
|
|
size_t curr_src_len;
|
|
|
|
size_t curr_dst_len;
|
|
|
|
size_t box_len = 0;
|
|
|
|
size_t i;
|
|
|
|
|
|
|
|
uint8_t *dst_box;
|
|
|
|
const uint8_t *src_box;
|
|
|
|
|
|
|
|
for (i = 0; i < length_code_size; i++) {
|
|
|
|
box_len <<= 8;
|
|
|
|
box_len |= src_data[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
curr_src_len = box_len + length_code_size;
|
|
|
|
curr_dst_len = box_len + sizeof(start_code);
|
|
|
|
|
|
|
|
if (remaining_src_size < curr_src_len) {
|
|
|
|
return AVERROR_BUFFER_TOO_SMALL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (remaining_dst_size < curr_dst_len) {
|
|
|
|
return AVERROR_BUFFER_TOO_SMALL;
|
|
|
|
}
|
|
|
|
|
|
|
|
dst_box = dst_data + sizeof(start_code);
|
|
|
|
src_box = src_data + length_code_size;
|
|
|
|
|
|
|
|
memcpy(dst_data, start_code, sizeof(start_code));
|
|
|
|
memcpy(dst_box, src_box, box_len);
|
|
|
|
|
|
|
|
src_data += curr_src_len;
|
|
|
|
dst_data += curr_dst_len;
|
|
|
|
|
|
|
|
remaining_src_size -= curr_src_len;
|
|
|
|
remaining_dst_size -= curr_dst_len;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vtenc_cm_to_avpacket(
|
|
|
|
AVCodecContext *avctx,
|
|
|
|
CMSampleBufferRef sample_buffer,
|
|
|
|
AVPacket *pkt)
|
|
|
|
{
|
|
|
|
VTEncContext *vtctx = avctx->priv_data;
|
|
|
|
|
|
|
|
int status;
|
|
|
|
bool is_key_frame;
|
|
|
|
bool add_header;
|
|
|
|
char *buf_data;
|
|
|
|
size_t length_code_size;
|
|
|
|
size_t header_size = 0;
|
|
|
|
size_t in_buf_size;
|
|
|
|
int64_t dts_delta;
|
|
|
|
int64_t time_base_num;
|
|
|
|
CMTime pts;
|
|
|
|
CMTime dts;
|
|
|
|
|
|
|
|
CMBlockBufferRef block;
|
|
|
|
CMVideoFormatDescriptionRef vid_fmt;
|
|
|
|
|
|
|
|
|
|
|
|
vtenc_get_frame_info(sample_buffer, &is_key_frame);
|
|
|
|
status = get_length_code_size(avctx, sample_buffer, &length_code_size);
|
|
|
|
if (status) return status;
|
|
|
|
|
|
|
|
add_header = is_key_frame && !(avctx->flags & AV_CODEC_FLAG_GLOBAL_HEADER);
|
|
|
|
|
|
|
|
if (add_header) {
|
|
|
|
vid_fmt = CMSampleBufferGetFormatDescription(sample_buffer);
|
|
|
|
if (!vid_fmt) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Cannot get format description.\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
int status = get_params_size(avctx, vid_fmt, &header_size);
|
|
|
|
if (status) return status;
|
|
|
|
}
|
|
|
|
|
|
|
|
block = CMSampleBufferGetDataBuffer(sample_buffer);
|
|
|
|
if (!block) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Could not get block buffer from sample buffer.\n");
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
status = CMBlockBufferGetDataPointer(block, 0, &in_buf_size, NULL, &buf_data);
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error: cannot get data pointer: %d\n", status);
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
size_t out_buf_size = header_size + in_buf_size;
|
|
|
|
bool can_reuse_cmbuffer = !add_header &&
|
|
|
|
!pkt->data &&
|
|
|
|
length_code_size == sizeof(start_code);
|
|
|
|
|
|
|
|
av_init_packet(pkt);
|
|
|
|
|
|
|
|
if (can_reuse_cmbuffer) {
|
|
|
|
AVBufferRef* buf_ref = av_buffer_create(
|
|
|
|
buf_data,
|
|
|
|
out_buf_size,
|
|
|
|
vtenc_free_block,
|
|
|
|
block,
|
|
|
|
0
|
|
|
|
);
|
|
|
|
|
|
|
|
if (!buf_ref) return AVERROR(ENOMEM);
|
|
|
|
|
|
|
|
CFRetain(block);
|
|
|
|
|
|
|
|
pkt->buf = buf_ref;
|
|
|
|
pkt->data = buf_data;
|
|
|
|
pkt->size = in_buf_size;
|
|
|
|
|
|
|
|
status = replace_length_codes(length_code_size, pkt->data, pkt->size);
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error replacing length codes: %d\n", status);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (!pkt->data) {
|
|
|
|
status = av_new_packet(pkt, out_buf_size);
|
|
|
|
if(status) return status;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (pkt->size < out_buf_size) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error: packet's buffer is too small.\n");
|
|
|
|
return AVERROR_BUFFER_TOO_SMALL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (add_header) {
|
|
|
|
status = copy_param_sets(avctx, vid_fmt, pkt->data, out_buf_size);
|
|
|
|
if(status) return status;
|
|
|
|
}
|
|
|
|
|
|
|
|
status = copy_replace_length_codes(
|
|
|
|
length_code_size,
|
|
|
|
buf_data,
|
|
|
|
in_buf_size,
|
|
|
|
pkt->data + header_size,
|
|
|
|
pkt->size - header_size
|
|
|
|
);
|
|
|
|
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error copying packet data: %d", status);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (is_key_frame) {
|
|
|
|
pkt->flags |= AV_PKT_FLAG_KEY;
|
|
|
|
}
|
|
|
|
|
|
|
|
pts = CMSampleBufferGetPresentationTimeStamp(sample_buffer);
|
|
|
|
dts = CMSampleBufferGetDecodeTimeStamp (sample_buffer);
|
|
|
|
|
|
|
|
dts_delta = vtctx->dts_delta >= 0 ? vtctx->dts_delta : 0;
|
|
|
|
time_base_num = avctx->time_base.num;
|
|
|
|
pkt->pts = pts.value / time_base_num;
|
|
|
|
pkt->dts = dts.value / time_base_num - dts_delta;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* contiguous_buf_size is 0 if not contiguous, and the size of the buffer
|
|
|
|
* containing all planes if so.
|
|
|
|
*/
|
|
|
|
static int get_cv_pixel_info(
|
|
|
|
AVCodecContext *avctx,
|
|
|
|
const AVFrame *frame,
|
|
|
|
int *color,
|
|
|
|
int *plane_count,
|
|
|
|
size_t *widths,
|
|
|
|
size_t *heights,
|
|
|
|
size_t *strides,
|
|
|
|
size_t *contiguous_buf_size)
|
|
|
|
{
|
|
|
|
VTEncContext *vtctx = avctx->priv_data;
|
|
|
|
int av_format = frame->format;
|
|
|
|
int av_color_range = av_frame_get_color_range(frame);
|
|
|
|
int i;
|
2016-04-27 16:53:04 +02:00
|
|
|
int range_guessed;
|
|
|
|
int status;
|
2016-03-02 13:11:40 +01:00
|
|
|
|
2016-04-27 16:53:04 +02:00
|
|
|
status = get_cv_pixel_format(avctx, av_format, av_color_range, color, &range_guessed);
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx,
|
|
|
|
AV_LOG_ERROR,
|
|
|
|
"Could not get pixel format for color format '%s' range '%s'.\n",
|
|
|
|
av_get_pix_fmt_name(av_format),
|
|
|
|
av_color_range > AVCOL_RANGE_UNSPECIFIED &&
|
|
|
|
av_color_range < AVCOL_RANGE_NB ?
|
|
|
|
av_color_range_name(av_color_range) :
|
|
|
|
"Unknown");
|
2016-03-02 13:11:40 +01:00
|
|
|
|
2016-04-27 16:53:04 +02:00
|
|
|
return AVERROR(EINVAL);
|
|
|
|
}
|
2016-03-02 13:11:40 +01:00
|
|
|
|
2016-04-27 16:53:04 +02:00
|
|
|
if (range_guessed) {
|
|
|
|
if (!vtctx->warned_color_range) {
|
|
|
|
vtctx->warned_color_range = true;
|
|
|
|
av_log(avctx,
|
|
|
|
AV_LOG_WARNING,
|
|
|
|
"Color range not set for %s. Using MPEG range.\n",
|
|
|
|
av_get_pix_fmt_name(av_format));
|
2016-03-02 13:11:40 +01:00
|
|
|
}
|
|
|
|
|
2016-04-27 16:53:04 +02:00
|
|
|
av_log(avctx, AV_LOG_WARNING, "");
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (av_format) {
|
|
|
|
case AV_PIX_FMT_NV12:
|
2016-03-02 13:11:40 +01:00
|
|
|
*plane_count = 2;
|
|
|
|
|
|
|
|
widths [0] = avctx->width;
|
|
|
|
heights[0] = avctx->height;
|
|
|
|
strides[0] = frame ? frame->linesize[0] : avctx->width;
|
|
|
|
|
|
|
|
widths [1] = (avctx->width + 1) / 2;
|
|
|
|
heights[1] = (avctx->height + 1) / 2;
|
|
|
|
strides[1] = frame ? frame->linesize[1] : (avctx->width + 1) & -2;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AV_PIX_FMT_YUV420P:
|
|
|
|
*plane_count = 3;
|
|
|
|
|
|
|
|
widths [0] = avctx->width;
|
|
|
|
heights[0] = avctx->height;
|
|
|
|
strides[0] = frame ? frame->linesize[0] : avctx->width;
|
|
|
|
|
|
|
|
widths [1] = (avctx->width + 1) / 2;
|
|
|
|
heights[1] = (avctx->height + 1) / 2;
|
|
|
|
strides[1] = frame ? frame->linesize[1] : (avctx->width + 1) / 2;
|
|
|
|
|
|
|
|
widths [2] = (avctx->width + 1) / 2;
|
|
|
|
heights[2] = (avctx->height + 1) / 2;
|
|
|
|
strides[2] = frame ? frame->linesize[2] : (avctx->width + 1) / 2;
|
|
|
|
break;
|
|
|
|
|
2016-04-27 16:53:04 +02:00
|
|
|
default:
|
|
|
|
av_log(
|
|
|
|
avctx,
|
|
|
|
AV_LOG_ERROR,
|
|
|
|
"Could not get frame format info for color %d range %d.\n",
|
|
|
|
av_format,
|
|
|
|
av_color_range);
|
|
|
|
|
|
|
|
return AVERROR(EINVAL);
|
2016-03-02 13:11:40 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
*contiguous_buf_size = 0;
|
|
|
|
for (i = 0; i < *plane_count; i++) {
|
|
|
|
if (i < *plane_count - 1 &&
|
|
|
|
frame->data[i] + strides[i] * heights[i] != frame->data[i + 1]) {
|
|
|
|
*contiguous_buf_size = 0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
*contiguous_buf_size += strides[i] * heights[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
#if !TARGET_OS_IPHONE
|
|
|
|
//Not used on iOS - frame is always copied.
|
|
|
|
static void free_avframe(
|
2016-03-03 04:44:28 +01:00
|
|
|
void *release_ctx,
|
|
|
|
const void *data,
|
|
|
|
size_t size,
|
|
|
|
size_t plane_count,
|
|
|
|
const void *plane_addresses[])
|
2016-03-02 13:11:40 +01:00
|
|
|
{
|
|
|
|
AVFrame *frame = release_ctx;
|
|
|
|
av_frame_free(&frame);
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
//Not used on OSX - frame is never copied.
|
|
|
|
static int copy_avframe_to_pixel_buffer(AVCodecContext *avctx,
|
|
|
|
const AVFrame *frame,
|
|
|
|
CVPixelBufferRef cv_img,
|
|
|
|
const size_t *plane_strides,
|
|
|
|
const size_t *plane_rows)
|
|
|
|
{
|
|
|
|
int i, j;
|
|
|
|
size_t plane_count;
|
|
|
|
int status;
|
|
|
|
int rows;
|
|
|
|
int src_stride;
|
|
|
|
int dst_stride;
|
|
|
|
uint8_t *src_addr;
|
|
|
|
uint8_t *dst_addr;
|
|
|
|
size_t copy_bytes;
|
|
|
|
|
|
|
|
status = CVPixelBufferLockBaseAddress(cv_img, 0);
|
|
|
|
if (status) {
|
|
|
|
av_log(
|
|
|
|
avctx,
|
|
|
|
AV_LOG_ERROR,
|
|
|
|
"Error: Could not lock base address of CVPixelBuffer: %d.\n",
|
|
|
|
status
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (CVPixelBufferIsPlanar(cv_img)) {
|
|
|
|
plane_count = CVPixelBufferGetPlaneCount(cv_img);
|
|
|
|
for (i = 0; frame->data[i]; i++) {
|
|
|
|
if (i == plane_count) {
|
|
|
|
CVPixelBufferUnlockBaseAddress(cv_img, 0);
|
|
|
|
av_log(avctx,
|
|
|
|
AV_LOG_ERROR,
|
|
|
|
"Error: different number of planes in AVFrame and CVPixelBuffer.\n"
|
|
|
|
);
|
|
|
|
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
dst_addr = (uint8_t*)CVPixelBufferGetBaseAddressOfPlane(cv_img, i);
|
|
|
|
src_addr = (uint8_t*)frame->data[i];
|
|
|
|
dst_stride = CVPixelBufferGetBytesPerRowOfPlane(cv_img, i);
|
|
|
|
src_stride = plane_strides[i];
|
|
|
|
rows = plane_rows[i];
|
|
|
|
|
|
|
|
if (dst_stride == src_stride) {
|
|
|
|
memcpy(dst_addr, src_addr, src_stride * rows);
|
|
|
|
} else {
|
|
|
|
copy_bytes = dst_stride < src_stride ? dst_stride : src_stride;
|
|
|
|
|
|
|
|
for (j = 0; j < rows; j++) {
|
|
|
|
memcpy(dst_addr + j * dst_stride, src_addr + j * src_stride, copy_bytes);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (frame->data[1]) {
|
|
|
|
CVPixelBufferUnlockBaseAddress(cv_img, 0);
|
|
|
|
av_log(avctx,
|
|
|
|
AV_LOG_ERROR,
|
|
|
|
"Error: different number of planes in AVFrame and non-planar CVPixelBuffer.\n"
|
|
|
|
);
|
|
|
|
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
dst_addr = (uint8_t*)CVPixelBufferGetBaseAddress(cv_img);
|
|
|
|
src_addr = (uint8_t*)frame->data[0];
|
|
|
|
dst_stride = CVPixelBufferGetBytesPerRow(cv_img);
|
|
|
|
src_stride = plane_strides[0];
|
|
|
|
rows = plane_rows[0];
|
|
|
|
|
|
|
|
if (dst_stride == src_stride) {
|
|
|
|
memcpy(dst_addr, src_addr, src_stride * rows);
|
|
|
|
} else {
|
|
|
|
copy_bytes = dst_stride < src_stride ? dst_stride : src_stride;
|
|
|
|
|
|
|
|
for (j = 0; j < rows; j++) {
|
|
|
|
memcpy(dst_addr + j * dst_stride, src_addr + j * src_stride, copy_bytes);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
status = CVPixelBufferUnlockBaseAddress(cv_img, 0);
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error: Could not unlock CVPixelBuffer base address: %d.\n", status);
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif //!TARGET_OS_IPHONE
|
|
|
|
|
|
|
|
static int create_cv_pixel_buffer(AVCodecContext *avctx,
|
|
|
|
const AVFrame *frame,
|
|
|
|
CVPixelBufferRef *cv_img)
|
|
|
|
{
|
|
|
|
int plane_count;
|
|
|
|
int color;
|
|
|
|
size_t widths [AV_NUM_DATA_POINTERS];
|
|
|
|
size_t heights[AV_NUM_DATA_POINTERS];
|
|
|
|
size_t strides[AV_NUM_DATA_POINTERS];
|
|
|
|
int status;
|
|
|
|
size_t contiguous_buf_size;
|
2016-04-27 16:53:04 +02:00
|
|
|
CVPixelBufferPoolRef pix_buf_pool;
|
|
|
|
VTEncContext* vtctx = avctx->priv_data;
|
2016-03-02 13:11:40 +01:00
|
|
|
|
2016-04-27 16:53:05 +02:00
|
|
|
|
|
|
|
if (avctx->pix_fmt == AV_PIX_FMT_VIDEOTOOLBOX) {
|
|
|
|
av_assert0(frame->format == AV_PIX_FMT_VIDEOTOOLBOX);
|
|
|
|
|
|
|
|
*cv_img = (CVPixelBufferRef)frame->data[3];
|
|
|
|
av_assert0(*cv_img);
|
|
|
|
|
|
|
|
CFRetain(*cv_img);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2016-03-02 13:11:40 +01:00
|
|
|
memset(widths, 0, sizeof(widths));
|
|
|
|
memset(heights, 0, sizeof(heights));
|
|
|
|
memset(strides, 0, sizeof(strides));
|
|
|
|
|
|
|
|
status = get_cv_pixel_info(
|
|
|
|
avctx,
|
|
|
|
frame,
|
|
|
|
&color,
|
|
|
|
&plane_count,
|
|
|
|
widths,
|
|
|
|
heights,
|
|
|
|
strides,
|
|
|
|
&contiguous_buf_size
|
|
|
|
);
|
|
|
|
|
|
|
|
if (status) {
|
|
|
|
av_log(
|
|
|
|
avctx,
|
|
|
|
AV_LOG_ERROR,
|
|
|
|
"Error: Cannot convert format %d color_range %d: %d\n",
|
|
|
|
frame->format,
|
|
|
|
av_frame_get_color_range(frame),
|
|
|
|
status
|
|
|
|
);
|
|
|
|
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
#if TARGET_OS_IPHONE
|
2016-04-27 16:53:04 +02:00
|
|
|
pix_buf_pool = VTCompressionSessionGetPixelBufferPool(vtctx->session);
|
|
|
|
if (!pix_buf_pool) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Could not get pixel buffer pool.\n");
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
status = CVPixelBufferPoolCreatePixelBuffer(NULL,
|
|
|
|
pix_buf_pool,
|
|
|
|
cv_img);
|
|
|
|
|
2016-03-02 13:11:40 +01:00
|
|
|
|
|
|
|
if (status) {
|
2016-04-27 16:53:04 +02:00
|
|
|
av_log(avctx, AV_LOG_ERROR, "Could not create pixel buffer from pool: %d.\n", status);
|
2016-03-02 13:11:40 +01:00
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
status = copy_avframe_to_pixel_buffer(avctx, frame, *cv_img, strides, heights);
|
|
|
|
if (status) {
|
|
|
|
CFRelease(*cv_img);
|
|
|
|
*cv_img = NULL;
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
AVFrame *enc_frame = av_frame_alloc();
|
|
|
|
if (!enc_frame) return AVERROR(ENOMEM);
|
|
|
|
|
|
|
|
status = av_frame_ref(enc_frame, frame);
|
|
|
|
if (status) {
|
|
|
|
av_frame_free(&enc_frame);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
|
|
|
status = CVPixelBufferCreateWithPlanarBytes(
|
|
|
|
kCFAllocatorDefault,
|
|
|
|
enc_frame->width,
|
|
|
|
enc_frame->height,
|
|
|
|
color,
|
|
|
|
NULL,
|
|
|
|
contiguous_buf_size,
|
|
|
|
plane_count,
|
|
|
|
(void **)enc_frame->data,
|
|
|
|
widths,
|
|
|
|
heights,
|
|
|
|
strides,
|
|
|
|
free_avframe,
|
|
|
|
enc_frame,
|
|
|
|
NULL,
|
|
|
|
cv_img
|
|
|
|
);
|
|
|
|
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error: Could not create CVPixelBuffer: %d\n", status);
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vtenc_send_frame(AVCodecContext *avctx,
|
|
|
|
VTEncContext *vtctx,
|
|
|
|
const AVFrame *frame)
|
|
|
|
{
|
|
|
|
CMTime time;
|
|
|
|
CVPixelBufferRef cv_img = NULL;
|
|
|
|
int status = create_cv_pixel_buffer(avctx, frame, &cv_img);
|
|
|
|
|
|
|
|
if (status) return status;
|
|
|
|
|
|
|
|
time = CMTimeMake(frame->pts * avctx->time_base.num, avctx->time_base.den);
|
|
|
|
status = VTCompressionSessionEncodeFrame(
|
|
|
|
vtctx->session,
|
|
|
|
cv_img,
|
|
|
|
time,
|
|
|
|
kCMTimeInvalid,
|
|
|
|
NULL,
|
|
|
|
NULL,
|
|
|
|
NULL
|
|
|
|
);
|
|
|
|
|
|
|
|
CFRelease(cv_img);
|
|
|
|
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error: cannot encode frame: %d\n", status);
|
|
|
|
return AVERROR_EXTERNAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static av_cold int vtenc_frame(
|
|
|
|
AVCodecContext *avctx,
|
|
|
|
AVPacket *pkt,
|
|
|
|
const AVFrame *frame,
|
|
|
|
int *got_packet)
|
|
|
|
{
|
|
|
|
VTEncContext *vtctx = avctx->priv_data;
|
|
|
|
bool get_frame;
|
|
|
|
int status;
|
|
|
|
CMSampleBufferRef buf = NULL;
|
|
|
|
|
|
|
|
if (frame) {
|
|
|
|
status = vtenc_send_frame(avctx, vtctx, frame);
|
|
|
|
|
|
|
|
if (status) {
|
|
|
|
status = AVERROR_EXTERNAL;
|
|
|
|
goto end_nopkt;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (vtctx->frame_ct_in == 0) {
|
|
|
|
vtctx->first_pts = frame->pts;
|
|
|
|
} else if(vtctx->frame_ct_in == 1 && vtctx->has_b_frames) {
|
|
|
|
vtctx->dts_delta = frame->pts - vtctx->first_pts;
|
|
|
|
}
|
|
|
|
|
|
|
|
vtctx->frame_ct_in++;
|
|
|
|
} else if(!vtctx->flushing) {
|
|
|
|
vtctx->flushing = true;
|
|
|
|
|
|
|
|
status = VTCompressionSessionCompleteFrames(vtctx->session,
|
|
|
|
kCMTimeIndefinite);
|
|
|
|
|
|
|
|
if (status) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Error flushing frames: %d\n", status);
|
|
|
|
status = AVERROR_EXTERNAL;
|
|
|
|
goto end_nopkt;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
*got_packet = 0;
|
|
|
|
get_frame = vtctx->dts_delta >= 0 || !frame;
|
|
|
|
if (!get_frame) {
|
|
|
|
status = 0;
|
|
|
|
goto end_nopkt;
|
|
|
|
}
|
|
|
|
|
|
|
|
status = vtenc_q_pop(vtctx, !frame, &buf);
|
|
|
|
if (status) goto end_nopkt;
|
|
|
|
if (!buf) goto end_nopkt;
|
|
|
|
|
|
|
|
status = vtenc_cm_to_avpacket(avctx, buf, pkt);
|
|
|
|
CFRelease(buf);
|
|
|
|
if (status) goto end_nopkt;
|
|
|
|
|
|
|
|
*got_packet = 1;
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
end_nopkt:
|
|
|
|
av_packet_unref(pkt);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
|
|
|
static av_cold int vtenc_close(AVCodecContext *avctx)
|
|
|
|
{
|
|
|
|
VTEncContext *vtctx = avctx->priv_data;
|
|
|
|
|
|
|
|
if(!vtctx->session) return 0;
|
|
|
|
|
|
|
|
pthread_cond_destroy(&vtctx->cv_sample_sent);
|
|
|
|
pthread_mutex_destroy(&vtctx->lock);
|
|
|
|
CFRelease(vtctx->session);
|
|
|
|
vtctx->session = NULL;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const enum AVPixelFormat pix_fmts[] = {
|
2016-04-27 16:53:05 +02:00
|
|
|
AV_PIX_FMT_VIDEOTOOLBOX,
|
2016-03-02 13:11:40 +01:00
|
|
|
AV_PIX_FMT_NV12,
|
|
|
|
AV_PIX_FMT_YUV420P,
|
|
|
|
AV_PIX_FMT_NONE
|
|
|
|
};
|
|
|
|
|
|
|
|
#define OFFSET(x) offsetof(VTEncContext, x)
|
|
|
|
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
|
|
|
|
static const AVOption options[] = {
|
|
|
|
{ "profile", "Profile", OFFSET(profile), AV_OPT_TYPE_INT, { .i64 = H264_PROF_AUTO }, H264_PROF_AUTO, H264_PROF_COUNT, VE, "profile" },
|
|
|
|
{ "baseline", "Baseline Profile", 0, AV_OPT_TYPE_CONST, { .i64 = H264_PROF_BASELINE }, INT_MIN, INT_MAX, VE, "profile" },
|
|
|
|
{ "main", "Main Profile", 0, AV_OPT_TYPE_CONST, { .i64 = H264_PROF_MAIN }, INT_MIN, INT_MAX, VE, "profile" },
|
|
|
|
{ "high", "High Profile", 0, AV_OPT_TYPE_CONST, { .i64 = H264_PROF_HIGH }, INT_MIN, INT_MAX, VE, "profile" },
|
|
|
|
|
|
|
|
{ "level", "Level", OFFSET(level), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 52, VE, "level" },
|
|
|
|
{ "1.3", "Level 1.3, only available with Baseline Profile", 0, AV_OPT_TYPE_CONST, { .i64 = 13 }, INT_MIN, INT_MAX, VE, "level" },
|
|
|
|
{ "3.0", "Level 3.0", 0, AV_OPT_TYPE_CONST, { .i64 = 30 }, INT_MIN, INT_MAX, VE, "level" },
|
|
|
|
{ "3.1", "Level 3.1", 0, AV_OPT_TYPE_CONST, { .i64 = 31 }, INT_MIN, INT_MAX, VE, "level" },
|
|
|
|
{ "3.2", "Level 3.2", 0, AV_OPT_TYPE_CONST, { .i64 = 32 }, INT_MIN, INT_MAX, VE, "level" },
|
|
|
|
{ "4.0", "Level 4.0", 0, AV_OPT_TYPE_CONST, { .i64 = 40 }, INT_MIN, INT_MAX, VE, "level" },
|
|
|
|
{ "4.1", "Level 4.1", 0, AV_OPT_TYPE_CONST, { .i64 = 41 }, INT_MIN, INT_MAX, VE, "level" },
|
|
|
|
{ "4.2", "Level 4.2", 0, AV_OPT_TYPE_CONST, { .i64 = 42 }, INT_MIN, INT_MAX, VE, "level" },
|
|
|
|
{ "5.0", "Level 5.0", 0, AV_OPT_TYPE_CONST, { .i64 = 50 }, INT_MIN, INT_MAX, VE, "level" },
|
|
|
|
{ "5.1", "Level 5.1", 0, AV_OPT_TYPE_CONST, { .i64 = 51 }, INT_MIN, INT_MAX, VE, "level" },
|
|
|
|
{ "5.2", "Level 5.2", 0, AV_OPT_TYPE_CONST, { .i64 = 52 }, INT_MIN, INT_MAX, VE, "level" },
|
|
|
|
|
|
|
|
{ NULL },
|
|
|
|
};
|
|
|
|
|
|
|
|
static const AVClass h264_videotoolbox_class = {
|
|
|
|
.class_name = "h264_videotoolbox",
|
|
|
|
.item_name = av_default_item_name,
|
|
|
|
.option = options,
|
|
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
|
|
};
|
|
|
|
|
|
|
|
AVCodec ff_h264_videotoolbox_encoder = {
|
|
|
|
.name = "h264_videotoolbox",
|
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("VideoToolbox H.264 Encoder"),
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
.id = AV_CODEC_ID_H264,
|
|
|
|
.priv_data_size = sizeof(VTEncContext),
|
|
|
|
.pix_fmts = pix_fmts,
|
|
|
|
.init = vtenc_init,
|
|
|
|
.encode2 = vtenc_frame,
|
|
|
|
.close = vtenc_close,
|
|
|
|
.capabilities = AV_CODEC_CAP_DELAY,
|
|
|
|
.priv_class = &h264_videotoolbox_class,
|
|
|
|
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
|
|
|
|
FF_CODEC_CAP_INIT_CLEANUP,
|
|
|
|
};
|