A keyframe could be buffered in the bsf and not be output until more packets
had been fed to it.
Signed-off-by: James Almer <jamr...@gmail.com>
---
This replaces/supersedes
[PATCH 2/6] avcodec/bsf: add a capabilities field to AVBitStreamFilter
[PATCH 4/6] ffmpeg: don't skip packets before a keyframe was seen if a bsf with
delay is used
fftools/ffmpeg.c | 4 +++-
fftools/ffmpeg.h | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index 6aa0986f02..2a56b2f0e7 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -889,6 +889,8 @@ static void output_packet(OutputFile *of, AVPacket *pkt,
/* apply the output bitstream filters */
if (ost->bsf_ctx) {
+ if (pkt && (pkt->flags & AV_PKT_FLAG_KEY))
+ ost->seen_kf = 1;
ret = av_bsf_send_packet(ost->bsf_ctx, eof ? NULL : pkt);
if (ret < 0)
goto finish;
@@ -2026,7 +2028,7 @@ static void do_streamcopy(InputStream *ist, OutputStream
*ost, const AVPacket *p
}
if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
- !ost->copy_initial_nonkeyframes)
+ !ost->copy_initial_nonkeyframes && !ost->seen_kf)
return;
if (!ost->frame_number && !ost->copy_prior_start) {
diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h
index 1b8bbace3f..cc8f767e5d 100644
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@@ -535,6 +535,7 @@ typedef struct OutputStream {
int inputs_done;
const char *attachment_filename;
+ int seen_kf;
int copy_initial_nonkeyframes;
int copy_prior_start;
char *disposition;
--
2.35.1
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