From f23e3ce8589629623db978ad70967eb37f7fac35 Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Thu, 18 Aug 2022 15:08:26 +0200 Subject: fftools/ffmpeg: call av_guess_frame_rate() when opening the file It is currently called when configuring the filter, which races with the demuxer thread. --- fftools/ffmpeg.h | 2 ++ fftools/ffmpeg_filter.c | 2 +- fftools/ffmpeg_opt.c | 2 ++ 3 files changed, 5 insertions(+), 1 deletion(-) diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h index 44cc23fa84..921e579c32 100644 --- a/fftools/ffmpeg.h +++ b/fftools/ffmpeg.h @@ -334,6 +334,8 @@ typedef struct InputStream { AVFrame *decoded_frame; AVPacket *pkt; + AVRational framerate_guessed; + int64_t prev_pkt_pts; int64_t start; /* time when read started */ /* predicted dts of the next packet read for this stream or (when there are diff --git a/fftools/ffmpeg_filter.c b/fftools/ffmpeg_filter.c index f9ae76f76d..16622e49c1 100644 --- a/fftools/ffmpeg_filter.c +++ b/fftools/ffmpeg_filter.c @@ -738,7 +738,7 @@ static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter, } if (!fr.num) - fr = av_guess_frame_rate(input_files[ist->file_index]->ctx, ist->st, NULL); + fr = ist->framerate_guessed; if (ist->dec_ctx->codec_type == AVMEDIA_TYPE_SUBTITLE) { ret = sub2video_prepare(ist, ifilter); diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c index 30ca5cd609..1ba7950bc1 100644 --- a/fftools/ffmpeg_opt.c +++ b/fftools/ffmpeg_opt.c @@ -1065,6 +1065,8 @@ static void add_input_streams(OptionsContext *o, AVFormatContext *ic) ist->top_field_first = -1; MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st); + ist->framerate_guessed = av_guess_frame_rate(ic, st, NULL); + break; case AVMEDIA_TYPE_AUDIO: ist->guess_layout_max = INT_MAX; -- cgit v1.2.3