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Code Issues Releases Activity

fftools/ffmpeg: move initializing encoders to a new file

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This file will contain more encoding-related code in the future.
This commit is contained in:
Anton Khirnov 2023-03-25 04:36:28 +01:00
parent 1dabd48519
commit d96f2fbf76
4 changed files with 346 additions and 305 deletions
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1
fftools/Makefile
View File

@ -11,6 +11,7 @@ ALLAVPROGS_G = $(AVBASENAMES:%=%$(PROGSSUF)_g$(EXESUF))
OBJS-ffmpeg += \
fftools/ffmpeg_demux.o \
fftools/ffmpeg_enc.o \
fftools/ffmpeg_filter.o \
fftools/ffmpeg_hw.o \
fftools/ffmpeg_mux.o \

306
fftools/ffmpeg.c
View File

@ -2967,316 +2967,12 @@ static int init_output_stream_streamcopy(OutputStream *ost)
return 0;
}
static void set_encoder_id(OutputFile *of, OutputStream *ost)
{
const char *cname = ost->enc_ctx->codec->name;
uint8_t *encoder_string;
int encoder_string_len;
if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
return;
encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(cname) + 2;
encoder_string = av_mallocz(encoder_string_len);
if (!encoder_string)
report_and_exit(AVERROR(ENOMEM));
if (!of->bitexact && !ost->bitexact)
av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
else
av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
av_strlcat(encoder_string, cname, encoder_string_len);
av_dict_set(&ost->st->metadata, "encoder", encoder_string,
AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
}
static void init_encoder_time_base(OutputStream *ost, AVRational default_time_base)
{
InputStream *ist = ost->ist;
AVCodecContext *enc_ctx = ost->enc_ctx;
if (ost->enc_timebase.num > 0) {
enc_ctx->time_base = ost->enc_timebase;
return;
}
if (ost->enc_timebase.num < 0) {
if (ist) {
enc_ctx->time_base = ist->st->time_base;
return;
}
av_log(ost, AV_LOG_WARNING,
"Input stream data not available, using default time base\n");
}
enc_ctx->time_base = default_time_base;
}
static int init_output_stream_encode(OutputStream *ost, AVFrame *frame)
{
InputStream *ist = ost->ist;
AVCodecContext *enc_ctx = ost->enc_ctx;
AVCodecContext *dec_ctx = NULL;
const AVCodec *enc = enc_ctx->codec;
OutputFile *of = output_files[ost->file_index];
int ret;
set_encoder_id(output_files[ost->file_index], ost);
if (ist) {
dec_ctx = ist->dec_ctx;
}
if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
if (!ost->frame_rate.num)
ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
if (!ost->frame_rate.num && !ost->max_frame_rate.num) {
ost->frame_rate = (AVRational){25, 1};
av_log(ost, AV_LOG_WARNING,
"No information "
"about the input framerate is available. Falling "
"back to a default value of 25fps. Use the -r option "
"if you want a different framerate.\n");
}
if (ost->max_frame_rate.num &&
(av_q2d(ost->frame_rate) > av_q2d(ost->max_frame_rate) ||
!ost->frame_rate.den))
ost->frame_rate = ost->max_frame_rate;
if (enc->supported_framerates && !ost->force_fps) {
int idx = av_find_nearest_q_idx(ost->frame_rate, enc->supported_framerates);
ost->frame_rate = enc->supported_framerates[idx];
}
// reduce frame rate for mpeg4 to be within the spec limits
if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
ost->frame_rate.num, ost->frame_rate.den, 65535);
}
}
switch (enc_ctx->codec_type) {
case AVMEDIA_TYPE_AUDIO:
enc_ctx->sample_fmt = av_buffersink_get_format(ost->filter->filter);
enc_ctx->sample_rate = av_buffersink_get_sample_rate(ost->filter->filter);
ret = av_buffersink_get_ch_layout(ost->filter->filter, &enc_ctx->ch_layout);
if (ret < 0)
return ret;
if (ost->bits_per_raw_sample)
enc_ctx->bits_per_raw_sample = ost->bits_per_raw_sample;
else if (dec_ctx && ost->filter->graph->is_meta)
enc_ctx->bits_per_raw_sample = FFMIN(dec_ctx->bits_per_raw_sample,
av_get_bytes_per_sample(enc_ctx->sample_fmt) << 3);
init_encoder_time_base(ost, av_make_q(1, enc_ctx->sample_rate));
break;
case AVMEDIA_TYPE_VIDEO:
init_encoder_time_base(ost, av_inv_q(ost->frame_rate));
if (!(enc_ctx->time_base.num && enc_ctx->time_base.den))
enc_ctx->time_base = av_buffersink_get_time_base(ost->filter->filter);
if ( av_q2d(enc_ctx->time_base) < 0.001 && ost->vsync_method != VSYNC_PASSTHROUGH
&& (ost->vsync_method == VSYNC_CFR || ost->vsync_method == VSYNC_VSCFR ||
(ost->vsync_method == VSYNC_AUTO && !(of->format->flags & AVFMT_VARIABLE_FPS)))){
av_log(ost, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
"Please consider specifying a lower framerate, a different muxer or "
"setting vsync/fps_mode to vfr\n");
}
enc_ctx->width = av_buffersink_get_w(ost->filter->filter);
enc_ctx->height = av_buffersink_get_h(ost->filter->filter);
enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
av_buffersink_get_sample_aspect_ratio(ost->filter->filter);
enc_ctx->pix_fmt = av_buffersink_get_format(ost->filter->filter);
if (ost->bits_per_raw_sample)
enc_ctx->bits_per_raw_sample = ost->bits_per_raw_sample;
else if (dec_ctx && ost->filter->graph->is_meta)
enc_ctx->bits_per_raw_sample = FFMIN(dec_ctx->bits_per_raw_sample,
av_pix_fmt_desc_get(enc_ctx->pix_fmt)->comp[0].depth);
if (frame) {
enc_ctx->color_range = frame->color_range;
enc_ctx->color_primaries = frame->color_primaries;
enc_ctx->color_trc = frame->color_trc;
enc_ctx->colorspace = frame->colorspace;
enc_ctx->chroma_sample_location = frame->chroma_location;
}
enc_ctx->framerate = ost->frame_rate;
ost->st->avg_frame_rate = ost->frame_rate;
// Field order: autodetection
if (frame) {
if (enc_ctx->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
ost->top_field_first >= 0)
frame->top_field_first = !!ost->top_field_first;
if (frame->interlaced_frame) {
if (enc->id == AV_CODEC_ID_MJPEG)
enc_ctx->field_order = frame->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
else
enc_ctx->field_order = frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
} else
enc_ctx->field_order = AV_FIELD_PROGRESSIVE;
}
// Field order: override
if (ost->top_field_first == 0) {
enc_ctx->field_order = AV_FIELD_BB;
} else if (ost->top_field_first == 1) {
enc_ctx->field_order = AV_FIELD_TT;
}
break;
case AVMEDIA_TYPE_SUBTITLE:
enc_ctx->time_base = AV_TIME_BASE_Q;
if (!enc_ctx->width) {
enc_ctx->width = ost->ist->par->width;
enc_ctx->height = ost->ist->par->height;
}
if (dec_ctx && dec_ctx->subtitle_header) {
/* ASS code assumes this buffer is null terminated so add extra byte. */
enc_ctx->subtitle_header = av_mallocz(dec_ctx->subtitle_header_size + 1);
if (!enc_ctx->subtitle_header)
return AVERROR(ENOMEM);
memcpy(enc_ctx->subtitle_header, dec_ctx->subtitle_header,
dec_ctx->subtitle_header_size);
enc_ctx->subtitle_header_size = dec_ctx->subtitle_header_size;
}
if (ist && ist->dec->type == AVMEDIA_TYPE_SUBTITLE &&
enc_ctx->codec_type == AVMEDIA_TYPE_SUBTITLE) {
int input_props = 0, output_props = 0;
AVCodecDescriptor const *input_descriptor =
avcodec_descriptor_get(ist->dec->id);
AVCodecDescriptor const *output_descriptor =
avcodec_descriptor_get(enc_ctx->codec_id);
if (input_descriptor)
input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
if (output_descriptor)
output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
if (input_props && output_props && input_props != output_props) {
av_log(ost, AV_LOG_ERROR,
"Subtitle encoding currently only possible from text to text "
"or bitmap to bitmap");
return AVERROR_INVALIDDATA;
}
}
break;
default:
abort();
break;
}
if (ost->bitexact)
enc_ctx->flags |= AV_CODEC_FLAG_BITEXACT;
if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
if (enc->capabilities & AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE) {
ret = av_dict_set(&ost->encoder_opts, "flags", "+copy_opaque", AV_DICT_MULTIKEY);
if (ret < 0)
return ret;
}
ret = hw_device_setup_for_encode(ost);
if (ret < 0) {
av_log(ost, AV_LOG_ERROR,
"Encoding hardware device setup failed: %s\n", av_err2str(ret));
return ret;
}
if ((ret = avcodec_open2(ost->enc_ctx, enc, &ost->encoder_opts)) < 0) {
if (ret == AVERROR_EXPERIMENTAL)
abort_codec_experimental(enc, 1);
av_log(ost, AV_LOG_ERROR, "Error while opening encoder - maybe "
"incorrect parameters such as bit_rate, rate, width or height.\n");
return ret;
}
if (ost->enc_ctx->frame_size) {
av_assert0(ost->sq_idx_encode >= 0);
sq_frame_samples(output_files[ost->file_index]->sq_encode,
ost->sq_idx_encode, ost->enc_ctx->frame_size);
}
assert_avoptions(ost->encoder_opts);
if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000 &&
ost->enc_ctx->codec_id != AV_CODEC_ID_CODEC2 /* don't complain about 700 bit/s modes */)
av_log(ost, AV_LOG_WARNING, "The bitrate parameter is set too low."
" It takes bits/s as argument, not kbits/s\n");
ret = avcodec_parameters_from_context(ost->st->codecpar, ost->enc_ctx);
if (ret < 0) {
av_log(ost, AV_LOG_FATAL,
"Error initializing the output stream codec context.\n");
exit_program(1);
}
if (ost->enc_ctx->nb_coded_side_data) {
int i;
for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
uint8_t *dst_data;
dst_data = av_stream_new_side_data(ost->st, sd_src->type, sd_src->size);
if (!dst_data)
return AVERROR(ENOMEM);
memcpy(dst_data, sd_src->data, sd_src->size);
}
}
/*
* Add global input side data. For now this is naive, and copies it
* from the input stream's global side data. All side data should
* really be funneled over AVFrame and libavfilter, then added back to
* packet side data, and then potentially using the first packet for
* global side data.
*/
if (ist) {
int i;
for (i = 0; i < ist->st->nb_side_data; i++) {
AVPacketSideData *sd = &ist->st->side_data[i];
if (sd->type != AV_PKT_DATA_CPB_PROPERTIES) {
uint8_t *dst = av_stream_new_side_data(ost->st, sd->type, sd->size);
if (!dst)
return AVERROR(ENOMEM);
memcpy(dst, sd->data, sd->size);
if (ist->autorotate && sd->type == AV_PKT_DATA_DISPLAYMATRIX)
av_display_rotation_set((int32_t *)dst, 0);
}
}
}
// copy timebase while removing common factors
if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
// copy estimated duration as a hint to the muxer
if (ost->st->duration <= 0 && ist && ist->st->duration > 0)
ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
ost->mux_timebase = enc_ctx->time_base;
return 0;
}
static int init_output_stream(OutputStream *ost, AVFrame *frame)
{
int ret = 0;
if (ost->enc_ctx) {
ret = init_output_stream_encode(ost, frame);
ret = enc_open(ost, frame);
if (ret < 0)
return ret;
} else if (ost->ist) {

2
fftools/ffmpeg.h
View File

@ -810,6 +810,8 @@ AVBufferRef *hw_device_for_filter(void);
int hwaccel_decode_init(AVCodecContext *avctx);
int enc_open(OutputStream *ost, AVFrame *frame);
/*
* Initialize muxing state for the given stream, should be called
* after the codec/streamcopy setup has been done.

342
fftools/ffmpeg_enc.c Normal file
View File

@ -0,0 +1,342 @@
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <math.h>
#include <stdint.h>
#include "ffmpeg.h"
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/avutil.h"
#include "libavutil/dict.h"
#include "libavutil/display.h"
#include "libavutil/eval.h"
#include "libavutil/frame.h"
#include "libavutil/log.h"
#include "libavutil/pixdesc.h"
#include "libavutil/rational.h"
#include "libavfilter/buffersink.h"
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
static void set_encoder_id(OutputFile *of, OutputStream *ost)
{
const char *cname = ost->enc_ctx->codec->name;
uint8_t *encoder_string;
int encoder_string_len;
if (av_dict_get(ost->st->metadata, "encoder", NULL, 0))
return;
encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(cname) + 2;
encoder_string = av_mallocz(encoder_string_len);
if (!encoder_string)
report_and_exit(AVERROR(ENOMEM));
if (!of->bitexact && !ost->bitexact)
av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
else
av_strlcpy(encoder_string, "Lavc ", encoder_string_len);
av_strlcat(encoder_string, cname, encoder_string_len);
av_dict_set(&ost->st->metadata, "encoder", encoder_string,
AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE);
}
static void init_encoder_time_base(OutputStream *ost, AVRational default_time_base)
{
InputStream *ist = ost->ist;
AVCodecContext *enc_ctx = ost->enc_ctx;
if (ost->enc_timebase.num > 0) {
enc_ctx->time_base = ost->enc_timebase;
return;
}
if (ost->enc_timebase.num < 0) {
if (ist) {
enc_ctx->time_base = ist->st->time_base;
return;
}
av_log(ost, AV_LOG_WARNING,
"Input stream data not available, using default time base\n");
}
enc_ctx->time_base = default_time_base;
}
int enc_open(OutputStream *ost, AVFrame *frame)
{
InputStream *ist = ost->ist;
AVCodecContext *enc_ctx = ost->enc_ctx;
AVCodecContext *dec_ctx = NULL;
const AVCodec *enc = enc_ctx->codec;
OutputFile *of = output_files[ost->file_index];
int ret;
set_encoder_id(output_files[ost->file_index], ost);
if (ist) {
dec_ctx = ist->dec_ctx;
}
if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
if (!ost->frame_rate.num)
ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
if (!ost->frame_rate.num && !ost->max_frame_rate.num) {
ost->frame_rate = (AVRational){25, 1};
av_log(ost, AV_LOG_WARNING,
"No information "
"about the input framerate is available. Falling "
"back to a default value of 25fps. Use the -r option "
"if you want a different framerate.\n");
}
if (ost->max_frame_rate.num &&
(av_q2d(ost->frame_rate) > av_q2d(ost->max_frame_rate) ||
!ost->frame_rate.den))
ost->frame_rate = ost->max_frame_rate;
if (enc->supported_framerates && !ost->force_fps) {
int idx = av_find_nearest_q_idx(ost->frame_rate, enc->supported_framerates);
ost->frame_rate = enc->supported_framerates[idx];
}
// reduce frame rate for mpeg4 to be within the spec limits
if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) {
av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
ost->frame_rate.num, ost->frame_rate.den, 65535);
}
}
switch (enc_ctx->codec_type) {
case AVMEDIA_TYPE_AUDIO:
enc_ctx->sample_fmt = av_buffersink_get_format(ost->filter->filter);
enc_ctx->sample_rate = av_buffersink_get_sample_rate(ost->filter->filter);
ret = av_buffersink_get_ch_layout(ost->filter->filter, &enc_ctx->ch_layout);
if (ret < 0)
return ret;
if (ost->bits_per_raw_sample)
enc_ctx->bits_per_raw_sample = ost->bits_per_raw_sample;
else if (dec_ctx && ost->filter->graph->is_meta)
enc_ctx->bits_per_raw_sample = FFMIN(dec_ctx->bits_per_raw_sample,
av_get_bytes_per_sample(enc_ctx->sample_fmt) << 3);
init_encoder_time_base(ost, av_make_q(1, enc_ctx->sample_rate));
break;
case AVMEDIA_TYPE_VIDEO:
init_encoder_time_base(ost, av_inv_q(ost->frame_rate));
if (!(enc_ctx->time_base.num && enc_ctx->time_base.den))
enc_ctx->time_base = av_buffersink_get_time_base(ost->filter->filter);
if ( av_q2d(enc_ctx->time_base) < 0.001 && ost->vsync_method != VSYNC_PASSTHROUGH
&& (ost->vsync_method == VSYNC_CFR || ost->vsync_method == VSYNC_VSCFR ||
(ost->vsync_method == VSYNC_AUTO && !(of->format->flags & AVFMT_VARIABLE_FPS)))){
av_log(ost, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
"Please consider specifying a lower framerate, a different muxer or "
"setting vsync/fps_mode to vfr\n");
}
enc_ctx->width = av_buffersink_get_w(ost->filter->filter);
enc_ctx->height = av_buffersink_get_h(ost->filter->filter);
enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio =
ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) :
av_buffersink_get_sample_aspect_ratio(ost->filter->filter);
enc_ctx->pix_fmt = av_buffersink_get_format(ost->filter->filter);
if (ost->bits_per_raw_sample)
enc_ctx->bits_per_raw_sample = ost->bits_per_raw_sample;
else if (dec_ctx && ost->filter->graph->is_meta)
enc_ctx->bits_per_raw_sample = FFMIN(dec_ctx->bits_per_raw_sample,
av_pix_fmt_desc_get(enc_ctx->pix_fmt)->comp[0].depth);
if (frame) {
enc_ctx->color_range = frame->color_range;
enc_ctx->color_primaries = frame->color_primaries;
enc_ctx->color_trc = frame->color_trc;
enc_ctx->colorspace = frame->colorspace;
enc_ctx->chroma_sample_location = frame->chroma_location;
}
enc_ctx->framerate = ost->frame_rate;
ost->st->avg_frame_rate = ost->frame_rate;
// Field order: autodetection
if (frame) {
if (enc_ctx->flags & (AV_CODEC_FLAG_INTERLACED_DCT | AV_CODEC_FLAG_INTERLACED_ME) &&
ost->top_field_first >= 0)
frame->top_field_first = !!ost->top_field_first;
if (frame->interlaced_frame) {
if (enc->id == AV_CODEC_ID_MJPEG)
enc_ctx->field_order = frame->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
else
enc_ctx->field_order = frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
} else
enc_ctx->field_order = AV_FIELD_PROGRESSIVE;
}
// Field order: override
if (ost->top_field_first == 0) {
enc_ctx->field_order = AV_FIELD_BB;
} else if (ost->top_field_first == 1) {
enc_ctx->field_order = AV_FIELD_TT;
}
break;
case AVMEDIA_TYPE_SUBTITLE:
enc_ctx->time_base = AV_TIME_BASE_Q;
if (!enc_ctx->width) {
enc_ctx->width = ost->ist->par->width;
enc_ctx->height = ost->ist->par->height;
}
if (dec_ctx && dec_ctx->subtitle_header) {
/* ASS code assumes this buffer is null terminated so add extra byte. */
enc_ctx->subtitle_header = av_mallocz(dec_ctx->subtitle_header_size + 1);
if (!enc_ctx->subtitle_header)
return AVERROR(ENOMEM);
memcpy(enc_ctx->subtitle_header, dec_ctx->subtitle_header,
dec_ctx->subtitle_header_size);
enc_ctx->subtitle_header_size = dec_ctx->subtitle_header_size;
}
if (ist && ist->dec->type == AVMEDIA_TYPE_SUBTITLE &&
enc_ctx->codec_type == AVMEDIA_TYPE_SUBTITLE) {
int input_props = 0, output_props = 0;
AVCodecDescriptor const *input_descriptor =
avcodec_descriptor_get(ist->dec->id);
AVCodecDescriptor const *output_descriptor =
avcodec_descriptor_get(enc_ctx->codec_id);
if (input_descriptor)
input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
if (output_descriptor)
output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
if (input_props && output_props && input_props != output_props) {
av_log(ost, AV_LOG_ERROR,
"Subtitle encoding currently only possible from text to text "
"or bitmap to bitmap");
return AVERROR_INVALIDDATA;
}
}
break;
default:
abort();
break;
}
if (ost->bitexact)
enc_ctx->flags |= AV_CODEC_FLAG_BITEXACT;
if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
if (enc->capabilities & AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE) {
ret = av_dict_set(&ost->encoder_opts, "flags", "+copy_opaque", AV_DICT_MULTIKEY);
if (ret < 0)
return ret;
}
ret = hw_device_setup_for_encode(ost);
if (ret < 0) {
av_log(ost, AV_LOG_ERROR,
"Encoding hardware device setup failed: %s\n", av_err2str(ret));
return ret;
}
if ((ret = avcodec_open2(ost->enc_ctx, enc, &ost->encoder_opts)) < 0) {
if (ret != AVERROR_EXPERIMENTAL)
av_log(ost, AV_LOG_ERROR, "Error while opening encoder - maybe "
"incorrect parameters such as bit_rate, rate, width or height.\n");
return ret;
}
if (ost->enc_ctx->frame_size) {
av_assert0(ost->sq_idx_encode >= 0);
sq_frame_samples(output_files[ost->file_index]->sq_encode,
ost->sq_idx_encode, ost->enc_ctx->frame_size);
}
assert_avoptions(ost->encoder_opts);
if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000 &&
ost->enc_ctx->codec_id != AV_CODEC_ID_CODEC2 /* don't complain about 700 bit/s modes */)
av_log(ost, AV_LOG_WARNING, "The bitrate parameter is set too low."
" It takes bits/s as argument, not kbits/s\n");
ret = avcodec_parameters_from_context(ost->st->codecpar, ost->enc_ctx);
if (ret < 0) {
av_log(ost, AV_LOG_FATAL,
"Error initializing the output stream codec context.\n");
exit_program(1);
}
if (ost->enc_ctx->nb_coded_side_data) {
int i;
for (i = 0; i < ost->enc_ctx->nb_coded_side_data; i++) {
const AVPacketSideData *sd_src = &ost->enc_ctx->coded_side_data[i];
uint8_t *dst_data;
dst_data = av_stream_new_side_data(ost->st, sd_src->type, sd_src->size);
if (!dst_data)
return AVERROR(ENOMEM);
memcpy(dst_data, sd_src->data, sd_src->size);
}
}
/*
* Add global input side data. For now this is naive, and copies it
* from the input stream's global side data. All side data should
* really be funneled over AVFrame and libavfilter, then added back to
* packet side data, and then potentially using the first packet for
* global side data.
*/
if (ist) {
int i;
for (i = 0; i < ist->st->nb_side_data; i++) {
AVPacketSideData *sd = &ist->st->side_data[i];
if (sd->type != AV_PKT_DATA_CPB_PROPERTIES) {
uint8_t *dst = av_stream_new_side_data(ost->st, sd->type, sd->size);
if (!dst)
return AVERROR(ENOMEM);
memcpy(dst, sd->data, sd->size);
if (ist->autorotate && sd->type == AV_PKT_DATA_DISPLAYMATRIX)
av_display_rotation_set((int32_t *)dst, 0);
}
}
}
// copy timebase while removing common factors
if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1});
// copy estimated duration as a hint to the muxer
if (ost->st->duration <= 0 && ist && ist->st->duration > 0)
ost->st->duration = av_rescale_q(ist->st->duration, ist->st->time_base, ost->st->time_base);
ost->mux_timebase = enc_ctx->time_base;
return 0;
}