[FFmpeg-cvslog] avcodec/mpegvideo_dec: Don't emit non-keyframe warning for H.261

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Thu Oct 12 20:26:45 2023 +0200| [f48313526b5c0fb889560cb91daadd8f8c194317] | committer: Andreas Rheinhardt

avcodec/mpegvideo_dec: Don't emit non-keyframe warning for H.261

H.261 does not have keyframes (or indeed frame types) at all,
so this warning is not warranted.

Also remove an always-true check while at it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f48313526b5c0fb889560cb91daadd8f8c194317
---

 libavcodec/mpegvideo_dec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/mpegvideo_dec.c b/libavcodec/mpegvideo_dec.c
index 1ced9a52ed..1059aa9825 100644
--- a/libavcodec/mpegvideo_dec.c
+++ b/libavcodec/mpegvideo_dec.c
@@ -380,7 +380,7 @@ int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
         if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
             av_log(avctx, AV_LOG_DEBUG,
                    "allocating dummy last picture for B frame\n");
-        else if (s->pict_type != AV_PICTURE_TYPE_I)
+        else if (s->codec_id != AV_CODEC_ID_H261)
             av_log(avctx, AV_LOG_ERROR,
                    "warning: first frame is no keyframe\n");