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Code Issues Releases Activity

fftools/ffmpeg_mux_init: simplify inner loop in map_auto_{video,audio}

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Skip unusable streams early and do not compute any scores for them.
This commit is contained in:
Anton Khirnov 2022-11-16 16:29:42 +01:00
parent 4c40581614
commit 86e2ffedfe
1 changed files with 13 additions and 8 deletions
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21
fftools/ffmpeg_mux_init.c
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@ -869,15 +869,18 @@ static void map_auto_video(Muxer *mux, const OptionsContext *o)
for (int i = 0; i < ifile->nb_streams; i++) {
int score;
ist = input_streams[ifile->ist_index + i];
if (ist->user_set_discard == AVDISCARD_ALL ||
ist->st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
continue;
score = ist->st->codecpar->width * ist->st->codecpar->height
+ 100000000 * !!(ist->st->event_flags & AVSTREAM_EVENT_FLAG_NEW_PACKETS)
+ 5000000*!!(ist->st->disposition & AV_DISPOSITION_DEFAULT);
if (ist->user_set_discard == AVDISCARD_ALL)
continue;
if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
score = 1;
if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
score > file_best_score) {
if (score > file_best_score) {
if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
continue;
file_best_score = score;
@ -913,13 +916,15 @@ static void map_auto_audio(Muxer *mux, const OptionsContext *o)
for (int i = 0; i < ifile->nb_streams; i++) {
int score;
ist = input_streams[ifile->ist_index + i];
if (ist->user_set_discard == AVDISCARD_ALL ||
ist->st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO)
continue;
score = ist->st->codecpar->ch_layout.nb_channels
+ 100000000 * !!(ist->st->event_flags & AVSTREAM_EVENT_FLAG_NEW_PACKETS)
+ 5000000*!!(ist->st->disposition & AV_DISPOSITION_DEFAULT);
if (ist->user_set_discard == AVDISCARD_ALL)
continue;
if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
score > file_best_score) {
if (score > file_best_score) {
file_best_score = score;
file_best_idx = ifile->ist_index + i;
}