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fftools/ffmpeg_dec: pass decoder options as an argument to dec_open()

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Rather than access the dictionary in InputStream.

This is a step towards decoupling Decoder and InputStream.
This commit is contained in:
Anton Khirnov 2024-01-11 10:45:18 +01:00
parent 7ecd45587f
commit 5b0e4f945e
3 changed files with 17 additions and 10 deletions
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7
fftools/ffmpeg.h
View File

@ -731,7 +731,12 @@ AVBufferRef *hw_device_for_filter(void);
int hwaccel_retrieve_data(AVCodecContext *avctx, AVFrame *input);
int dec_open(InputStream *ist, Scheduler *sch, unsigned sch_idx);
/**
* @param dec_opts Dictionary filled with decoder options. Its ownership
* is transferred to the decoder.
*/
int dec_open(InputStream *ist, Scheduler *sch, unsigned sch_idx,
AVDictionary **dec_opts);
void dec_free(Decoder **pdec);
int dec_add_filter(Decoder *dec, InputFilter *ifilter);

17
fftools/ffmpeg_dec.c
View File

@ -918,7 +918,8 @@ static const AVClass dec_class = {
.item_name = dec_item_name,
};
int dec_open(InputStream *ist, Scheduler *sch, unsigned sch_idx)
int dec_open(InputStream *ist, Scheduler *sch, unsigned sch_idx,
AVDictionary **dec_opts)
{
DecoderPriv *dp;
const AVCodec *codec = ist->dec;
@ -970,7 +971,7 @@ int dec_open(InputStream *ist, Scheduler *sch, unsigned sch_idx)
if (dp->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE &&
(ist->decoding_needed & DECODING_FOR_OST)) {
av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
av_dict_set(dec_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE);
if (ist->decoding_needed & DECODING_FOR_FILTER)
av_log(dp, AV_LOG_WARNING,
"Warning using DVB subtitles for filtering and output at the "
@ -981,13 +982,13 @@ int dec_open(InputStream *ist, Scheduler *sch, unsigned sch_idx)
* audio, and video decoders such as cuvid or mediacodec */
dp->dec_ctx->pkt_timebase = ist->st->time_base;
if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0))
av_dict_set(&ist->decoder_opts, "threads", "auto", 0);
if (!av_dict_get(*dec_opts, "threads", NULL, 0))
av_dict_set(dec_opts, "threads", "auto", 0);
/* Attached pics are sparse, therefore we would not want to delay their decoding till EOF. */
if (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC)
av_dict_set(&ist->decoder_opts, "threads", "1", 0);
av_dict_set(dec_opts, "threads", "1", 0);
av_dict_set(&ist->decoder_opts, "flags", "+copy_opaque", AV_DICT_MULTIKEY);
av_dict_set(dec_opts, "flags", "+copy_opaque", AV_DICT_MULTIKEY);
ret = hw_device_setup_for_decode(ist, dp);
if (ret < 0) {
@ -997,13 +998,13 @@ int dec_open(InputStream *ist, Scheduler *sch, unsigned sch_idx)
return ret;
}
if ((ret = avcodec_open2(dp->dec_ctx, codec, &ist->decoder_opts)) < 0) {
if ((ret = avcodec_open2(dp->dec_ctx, codec, dec_opts)) < 0) {
av_log(dp, AV_LOG_ERROR, "Error while opening decoder: %s\n",
av_err2str(ret));
return ret;
}
ret = check_avoptions(ist->decoder_opts);
ret = check_avoptions(*dec_opts);
if (ret < 0)
return ret;

3
fftools/ffmpeg_demux.c
View File

@ -895,7 +895,8 @@ static int ist_use(InputStream *ist, int decoding_needed)
if (ret < 0)
return ret;
ret = dec_open(ist, d->sch, ds->sch_idx_dec);
ret = dec_open(ist, d->sch, ds->sch_idx_dec,
&ist->decoder_opts);
if (ret < 0)
return ret;