@@ -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) {
@@ -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;
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 <jamrial@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(-)