Steven Liu <l...@chinaffmpeg.org> 于2020年9月18日周五 上午9:53写道：
>
> fix ticket: 8636
> When write keyframe and the keyframe is the frist packet of the segment,
> then compute the size of the keyframe which have been write into segment
> first packet. and set the start position of the segment, should not use
> avio_tell(vs->out) to get the keyframe position, because it can be set
> to 0 if close at above of the workflow, that maybe inaccurate, but the
> start_pos can be used here, because start_pos is set after write
> the previous packet.
>
> Signed-off-by: Steven Liu <l...@chinaffmpeg.org>
> ---
> libavformat/hlsenc.c | 11 ++++++-----
> 1 file changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
> index cb31d6aed7..8687d7c12c 100644
> --- a/libavformat/hlsenc.c
> +++ b/libavformat/hlsenc.c
> @@ -2572,13 +2572,14 @@ static int hls_write_packet(AVFormatContext *s,
> AVPacket *pkt)
>
> vs->packets_written++;
> if (oc->pb) {
> + int64_t keyframe_pre_pos = avio_tell(oc->pb);
> ret = ff_write_chained(oc, stream_index, pkt, s, 0);
> - vs->video_keyframe_size += pkt->size;
> - if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && (pkt->flags
> & AV_PKT_FLAG_KEY)) {
> - vs->video_keyframe_size = avio_tell(oc->pb);
> - } else {
> - vs->video_keyframe_pos = avio_tell(vs->out);
> + if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
> + (pkt->flags & AV_PKT_FLAG_KEY) && !keyframe_pre_pos) {
> + av_write_frame(oc, NULL); /* Flush any buffered data */
> + vs->video_keyframe_size = avio_tell(oc->pb) - keyframe_pre_pos;
> }
> + vs->video_keyframe_pos = vs->start_pos;
> if (hls->ignore_io_errors)
> ret = 0;
> }
> --
> 2.25.0
>
>
>
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Pushed
Thanks
Steven
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