11d3b03fcb added consideration of default stream disposition for audio and video when choosing the 'best' stream among all the inputs. This can lead to video streams with lower resolution or audio streams with fewer channels being selected.
Stream disposition, however, only sets a priority for a stream among all other streams in the *same input*. It cannot set a priority for a stream across all inputs. This patch sets a middle-way and selects the best stream from each file with default disposition considered. Then it discards disposition weight and selects best stream as per the original criteria of highest resolution for video and most channels for audio. --- fftools/ffmpeg_opt.c | 77 ++++++++++++++++++++++++++++---------------- 1 file changed, 50 insertions(+), 27 deletions(-) diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c index 1b43bab9fc..34cc6c4fd3 100644 --- a/fftools/ffmpeg_opt.c +++ b/fftools/ffmpeg_opt.c @@ -2260,23 +2260,35 @@ static int open_output_file(OptionsContext *o, const char *filename) if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) { int best_score = 0, idx = -1; int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0); - for (i = 0; i < nb_input_streams; i++) { - int score; - ist = input_streams[i]; - 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 > best_score) { - if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC)) + for (j = 0; j < nb_input_files; j++) { + InputFile *ifile = input_files[j]; + int file_best_score = 0, file_best_idx = -1; + for (i = 0; i < ifile->nb_streams; i++) { + int score; + ist = input_streams[ifile->ist_index + i]; + 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; - best_score = score; - idx = i; + 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((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC)) + continue; + file_best_score = score; + file_best_idx = ifile->ist_index + i; + } } + if (file_best_idx >= 0) { + if((qcr == MKTAG('A', 'P', 'I', 'C')) || !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC)) + file_best_score -= 5000000*!!(input_streams[file_best_idx]->st->disposition & AV_DISPOSITION_DEFAULT); + if (file_best_score > best_score) { + best_score = file_best_score; + idx = file_best_idx; + } + } } if (idx >= 0) new_video_stream(o, oc, idx); @@ -2285,19 +2297,30 @@ static int open_output_file(OptionsContext *o, const char *filename) /* audio: most channels */ if (!o->audio_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_AUDIO) != AV_CODEC_ID_NONE) { int best_score = 0, idx = -1; - for (i = 0; i < nb_input_streams; i++) { - int score; - ist = input_streams[i]; - score = ist->st->codecpar->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 > best_score) { - best_score = score; - idx = i; + for (j = 0; j < nb_input_files; j++) { + InputFile *ifile = input_files[j]; + int file_best_score = 0, file_best_idx = -1; + for (i = 0; i < ifile->nb_streams; i++) { + int score; + ist = input_streams[ifile->ist_index + i]; + score = ist->st->codecpar->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) { + file_best_score = score; + file_best_idx = ifile->ist_index + i; + } } + if (file_best_idx >= 0) { + file_best_score -= 5000000*!!(input_streams[file_best_idx]->st->disposition & AV_DISPOSITION_DEFAULT); + if (file_best_score > best_score) { + best_score = file_best_score; + idx = file_best_idx; + } + } } if (idx >= 0) new_audio_stream(o, oc, idx); -- 2.32.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".