[FFmpeg-devel] [PATCH] avformat/flvdec: remove unused context member of flv
Steven Liu
lingjiujianke at gmail.com
Mon Aug 14 09:14:58 EEST 2023
Steven Liu <lq at chinaffmpeg.org> 于2023年8月4日周五 10:54写道:
>
> The exheader is unnecessary after 207e9f4e505d969d6ff7545b449295a1b88d6d1c
> Iust use local varible can do the same function.
>
> Signed-off-by: Steven Liu <lq at chinaffmpeg.org>
> ---
> libavformat/flvdec.c | 9 ++++-----
> 1 file changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
> index bdcf96b4ae..e25b5bd163 100644
> --- a/libavformat/flvdec.c
> +++ b/libavformat/flvdec.c
> @@ -80,7 +80,6 @@ typedef struct FLVContext {
> int64_t time_offset;
> int64_t time_pos;
>
> - uint8_t exheader;
> } FLVContext;
>
> /* AMF date type */
> @@ -813,7 +812,6 @@ static int flv_read_header(AVFormatContext *s)
> s->start_time = 0;
> flv->sum_flv_tag_size = 0;
> flv->last_keyframe_stream_index = -1;
> - flv->exheader = 0;
>
> return 0;
> }
> @@ -1043,6 +1041,7 @@ static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
> AVStream *st = NULL;
> int last = -1;
> int orig_size;
> + int enhanced_flv = 0;
> uint32_t video_codec_id = 0;
>
> retry:
> @@ -1095,9 +1094,9 @@ retry:
> * Reference Enhancing FLV 2023-03-v1.0.0-B.8
> * https://github.com/veovera/enhanced-rtmp/blob/main/enhanced-rtmp-v1.pdf
> * */
> - flv->exheader = (flags >> 7) & 1;
> + enhanced_flv = (flags >> 7) & 1;
> size--;
> - if (flv->exheader) {
> + if (enhanced_flv) {
> video_codec_id = avio_rb32(s->pb);
> size -= 4;
> }
> @@ -1276,7 +1275,7 @@ retry_duration:
> st->codecpar->codec_id == AV_CODEC_ID_AV1 ||
> st->codecpar->codec_id == AV_CODEC_ID_VP9) {
> int type = 0;
> - if (flv->exheader && stream_type == FLV_STREAM_TYPE_VIDEO) {
> + if (enhanced_flv && stream_type == FLV_STREAM_TYPE_VIDEO) {
> type = flags & 0x0F;
> } else {
> type = avio_r8(s->pb);
> --
> 2.40.0
>
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applied
Thanks
Steven
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