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avconv: do not use the stream codec context for encoding

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This commit is contained in:
Anton Khirnov 2014-04-05 08:48:24 +02:00
parent 41776ba9c0
commit 383136264e
4 changed files with 69 additions and 58 deletions
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91
avconv.c
View File

@ -191,6 +191,8 @@ static void avconv_cleanup(int ret)
av_freep(&ost->avfilter);
av_freep(&ost->logfile_prefix);
avcodec_free_context(&ost->enc_ctx);
av_freep(&output_streams[i]);
}
for (i = 0; i < nb_input_files; i++) {
@ -316,7 +318,7 @@ static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
{
AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
AVCodecContext *avctx = ost->st->codec;
AVCodecContext *avctx = ost->enc_ctx;
int ret;
/*
@ -394,7 +396,7 @@ static int check_recording_time(OutputStream *ost)
OutputFile *of = output_files[ost->file_index];
if (of->recording_time != INT64_MAX &&
av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time,
AV_TIME_BASE_Q) >= 0) {
ost->finished = 1;
return 0;
@ -405,7 +407,7 @@ static int check_recording_time(OutputStream *ost)
static void do_audio_out(AVFormatContext *s, OutputStream *ost,
AVFrame *frame)
{
AVCodecContext *enc = ost->st->codec;
AVCodecContext *enc = ost->enc_ctx;
AVPacket pkt;
int got_packet = 0;
@ -456,7 +458,7 @@ static void do_subtitle_out(AVFormatContext *s,
return;
}
enc = ost->st->codec;
enc = ost->enc_ctx;
if (!subtitle_out) {
subtitle_out = av_malloc(subtitle_out_max_size);
@ -513,7 +515,7 @@ static void do_video_out(AVFormatContext *s,
{
int ret, format_video_sync;
AVPacket pkt;
AVCodecContext *enc = ost->st->codec;
AVCodecContext *enc = ost->enc_ctx;
*frame_size = 0;
@ -563,11 +565,11 @@ static void do_video_out(AVFormatContext *s,
} else {
int got_packet;
if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
if (enc->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
ost->top_field_first >= 0)
in_picture->top_field_first = !!ost->top_field_first;
in_picture->quality = ost->st->codec->global_quality;
in_picture->quality = enc->global_quality;
if (!enc->me_threshold)
in_picture->pict_type = 0;
if (ost->forced_kf_index < ost->forced_kf_count &&
@ -628,7 +630,7 @@ static void do_video_stats(OutputStream *ost, int frame_size)
}
}
enc = ost->st->codec;
enc = ost->enc_ctx;
if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
frame_number = ost->frame_number;
fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
@ -666,7 +668,7 @@ static int poll_filter(OutputStream *ost)
if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
!(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
ost->st->codec->frame_size);
ost->enc_ctx->frame_size);
else
ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
@ -677,16 +679,16 @@ static int poll_filter(OutputStream *ost)
int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
filtered_frame->pts = av_rescale_q(filtered_frame->pts,
ost->filter->filter->inputs[0]->time_base,
ost->st->codec->time_base) -
ost->enc_ctx->time_base) -
av_rescale_q(start_time,
AV_TIME_BASE_Q,
ost->st->codec->time_base);
ost->enc_ctx->time_base);
}
switch (ost->filter->filter->inputs[0]->type) {
case AVMEDIA_TYPE_VIDEO:
if (!ost->frame_aspect_ratio)
ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
ost->enc_ctx->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
do_video_out(of->ctx, ost, filtered_frame, &frame_size);
if (vstats_filename && frame_size)
@ -728,7 +730,7 @@ static int poll_filters(void)
if (!output_streams[i]->filter || output_streams[i]->finished)
continue;
pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
pts = av_rescale_q(pts, output_streams[i]->enc_ctx->time_base,
AV_TIME_BASE_Q);
if (pts < min_pts) {
min_pts = pts;
@ -768,12 +770,12 @@ static void print_final_stats(int64_t total_size)
for (i = 0; i < nb_output_streams; i++) {
OutputStream *ost = output_streams[i];
switch (ost->st->codec->codec_type) {
switch (ost->enc_ctx->codec_type) {
case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
default: other_size += ost->data_size; break;
}
extra_size += ost->st->codec->extradata_size;
extra_size += ost->enc_ctx->extradata_size;
data_size += ost->data_size;
}
@ -836,7 +838,7 @@ static void print_final_stats(int64_t total_size)
for (j = 0; j < of->ctx->nb_streams; j++) {
OutputStream *ost = output_streams[of->ost_index + j];
enum AVMediaType type = ost->st->codec->codec_type;
enum AVMediaType type = ost->enc_ctx->codec_type;
total_size += ost->data_size;
total_packets += ost->packets_written;
@ -910,7 +912,7 @@ static void print_report(int is_last_report, int64_t timer_start)
for (i = 0; i < nb_output_streams; i++) {
float q = -1;
ost = output_streams[i];
enc = ost->st->codec;
enc = ost->enc_ctx;
if (!ost->stream_copy && enc->coded_frame)
q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
@ -989,23 +991,23 @@ static void flush_encoders(void)
for (i = 0; i < nb_output_streams; i++) {
OutputStream *ost = output_streams[i];
AVCodecContext *enc = ost->st->codec;
AVCodecContext *enc = ost->enc_ctx;
AVFormatContext *os = output_files[ost->file_index]->ctx;
int stop_encoding = 0;
if (!ost->encoding_needed)
continue;
if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
continue;
if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO)
continue;
for (;;) {
int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL;
const char *desc;
switch (ost->st->codec->codec_type) {
switch (enc->codec_type) {
case AVMEDIA_TYPE_AUDIO:
encode = avcodec_encode_audio2;
desc = "Audio";
@ -1100,7 +1102,7 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p
}
/* force the input stream PTS */
if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO)
ost->sync_opts++;
if (pkt->pts != AV_NOPTS_VALUE)
@ -1118,10 +1120,10 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p
opkt.flags = pkt->flags;
// FIXME remove the following 2 lines they shall be replaced by the bitstream filters
if ( ost->st->codec->codec_id != AV_CODEC_ID_H264
&& ost->st->codec->codec_id != AV_CODEC_ID_MPEG1VIDEO
&& ost->st->codec->codec_id != AV_CODEC_ID_MPEG2VIDEO
&& ost->st->codec->codec_id != AV_CODEC_ID_VC1
if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264
&& ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO
&& ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO
&& ost->enc_ctx->codec_id != AV_CODEC_ID_VC1
) {
if (av_parser_change(ost->parser, ost->st->codec,
&opkt.data, &opkt.size,
@ -1555,7 +1557,7 @@ static int init_input_stream(int ist_index, char *error, int error_len)
for (i = 0; i < nb_output_streams; i++) {
OutputStream *ost = output_streams[i];
if (ost->source_index == ist_index) {
update_sample_fmt(ist->dec_ctx, codec, ost->st->codec);
update_sample_fmt(ist->dec_ctx, codec, ost->enc_ctx);
break;
}
}
@ -1602,7 +1604,7 @@ static InputStream *get_input_stream(OutputStream *ost)
int i;
for (i = 0; i < fg->nb_inputs; i++)
if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->st->codec->codec_type)
if (fg->inputs[i]->ist->dec_ctx->codec_type == ost->enc_ctx->codec_type)
return fg->inputs[i]->ist;
}
@ -1711,7 +1713,7 @@ static int transcode_init(void)
if (ost->attachment_filename)
continue;
enc_ctx = ost->st->codec;
enc_ctx = ost->enc_ctx;
if (ist) {
dec_ctx = ist->dec_ctx;
@ -1893,7 +1895,7 @@ static int transcode_init(void)
if (ost->forced_keyframes)
parse_forced_key_frames(ost->forced_keyframes, ost,
ost->st->codec);
ost->enc_ctx);
break;
case AVMEDIA_TYPE_SUBTITLE:
enc_ctx->time_base = (AVRational){1, 1000};
@ -1947,17 +1949,19 @@ static int transcode_init(void)
if ((ist = get_input_stream(ost)))
dec = ist->dec_ctx;
if (dec && dec->subtitle_header) {
ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
if (!ost->st->codec->subtitle_header) {
ost->enc_ctx->subtitle_header = av_malloc(dec->subtitle_header_size);
if (!ost->enc_ctx->subtitle_header) {
ret = AVERROR(ENOMEM);
goto dump_format;
}
memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size;
}
if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0))
av_dict_set(&ost->encoder_opts, "threads", "auto", 0);
if ((ret = avcodec_open2(ost->st->codec, codec, &ost->encoder_opts)) < 0) {
av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0);
if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) {
if (ret == AVERROR_EXPERIMENTAL)
abort_codec_experimental(codec, 1);
snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
@ -1965,11 +1969,18 @@ static int transcode_init(void)
goto dump_format;
}
assert_avoptions(ost->encoder_opts);
if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000)
av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
"It takes bits/s as argument, not kbits/s\n");
} else {
av_opt_set_dict(ost->st->codec, &ost->encoder_opts);
av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts);
}
ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx);
if (ret < 0) {
av_log(NULL, AV_LOG_FATAL,
"Error initializing the output stream codec context.\n");
exit_program(1);
}
}
@ -2505,8 +2516,7 @@ static int transcode(void)
for (i = 0; i < nb_output_streams; i++) {
ost = output_streams[i];
if (ost->encoding_needed) {
av_freep(&ost->st->codec->stats_in);
avcodec_close(ost->st->codec);
av_freep(&ost->enc_ctx->stats_in);
}
}
@ -2532,13 +2542,10 @@ static int transcode(void)
for (i = 0; i < nb_output_streams; i++) {
ost = output_streams[i];
if (ost) {
if (ost->stream_copy)
av_freep(&ost->st->codec->extradata);
if (ost->logfile) {
fclose(ost->logfile);
ost->logfile = NULL;
}
av_freep(&ost->st->codec->subtitle_header);
av_free(ost->forced_kf_pts);
av_dict_free(&ost->encoder_opts);
av_dict_free(&ost->resample_opts);

1
avconv.h
View File

@ -314,6 +314,7 @@ typedef struct OutputStream {
/* dts of the last packet sent to the muxer */
int64_t last_mux_dts;
AVBitStreamFilterContext *bitstream_filters;
AVCodecContext *enc_ctx;
AVCodec *enc;
int64_t max_frames;
AVFrame *filtered_frame;

8
avconv_filter.c
View File

@ -39,8 +39,8 @@
#define DEF_CHOOSE_FORMAT(type, var, supported_list, none, get_name) \
static char *choose_ ## var ## s(OutputStream *ost) \
{ \
if (ost->st->codec->var != none) { \
get_name(ost->st->codec->var); \
if (ost->enc_ctx->var != none) { \
get_name(ost->enc_ctx->var); \
return av_strdup(name); \
} else if (ost->enc && ost->enc->supported_list) { \
const type *p; \
@ -231,7 +231,7 @@ static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter,
char *pix_fmts;
OutputStream *ost = ofilter->ost;
OutputFile *of = output_files[ost->file_index];
AVCodecContext *codec = ost->st->codec;
AVCodecContext *codec = ost->enc_ctx;
AVFilterContext *last_filter = out->filter_ctx;
int pad_idx = out->pad_idx;
int ret;
@ -319,7 +319,7 @@ static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter,
{
OutputStream *ost = ofilter->ost;
OutputFile *of = output_files[ost->file_index];
AVCodecContext *codec = ost->st->codec;
AVCodecContext *codec = ost->enc_ctx;
AVFilterContext *last_filter = out->filter_ctx;
int pad_idx = out->pad_idx;
char *sample_fmts, *sample_rates, *channel_layouts;

27
avconv_opt.c
View File

@ -905,6 +905,14 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
ost->st = st;
st->codec->codec_type = type;
choose_encoder(o, oc, ost);
ost->enc_ctx = avcodec_alloc_context3(ost->enc);
if (!ost->enc_ctx) {
av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
exit_program(1);
}
ost->enc_ctx->codec_type = type;
if (ost->enc) {
AVIOContext *s = NULL;
char *buf = NULL, *arg = NULL, *preset = NULL;
@ -939,9 +947,6 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
}
avcodec_get_context_defaults3(st->codec, ost->enc);
st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
ost->max_frames = INT64_MAX;
MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
@ -967,17 +972,17 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
uint32_t tag = strtol(codec_tag, &next, 0);
if (*next)
tag = AV_RL32(codec_tag);
st->codec->codec_tag = tag;
ost->enc_ctx->codec_tag = tag;
}
MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
if (qscale >= 0) {
st->codec->flags |= CODEC_FLAG_QSCALE;
st->codec->global_quality = FF_QP2LAMBDA * qscale;
ost->enc_ctx->flags |= CODEC_FLAG_QSCALE;
ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
}
if (oc->oformat->flags & AVFMT_GLOBALHEADER)
st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
ost->enc_ctx->flags |= CODEC_FLAG_GLOBAL_HEADER;
av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
@ -1068,7 +1073,7 @@ static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
st = ost->st;
video_enc = st->codec;
video_enc = ost->enc_ctx;
MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
if (frame_aspect_ratio)
@ -1189,7 +1194,7 @@ static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
st = ost->st;
audio_enc = st->codec;
audio_enc = ost->enc_ctx;
audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
if (!ost->stream_copy) {
@ -1237,13 +1242,11 @@ static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *o
static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
{
AVStream *st;
OutputStream *ost;
AVCodecContext *subtitle_enc;
ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
st = ost->st;
subtitle_enc = st->codec;
subtitle_enc = ost->enc_ctx;
subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;