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 f67a2f1d1d..ee3ae8120e 100644
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@@ -343,6 +343,8 @@ typedef struct InputStream {
*/
AVCodecContext *parser_dec;
+ 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 a505c7b26f..0810bd0b9e 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -1074,6 +1074,8 @@ static void add_input_streams(OptionsContext *o,
AVFormatContext *ic)
exit_program(1);
}
+ ist->framerate_guessed = av_guess_frame_rate(ic, st, NULL);
+
break;
case AVMEDIA_TYPE_AUDIO:
ist->guess_layout_max = INT_MAX;
--
2.35.1
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