ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinha...@outlook.com> | Tue Mar 25 09:08:50 2025 +0100| [1d5f660ff662d340ee120734c8ea2423857902b2] | committer: Andreas Rheinhardt
avcodec/mpegvideo_dec: Notify users of reinit Namely of reinititialization performed by ff_mpeg_update_thread_context(), so that they can simply update their own dimension-based buffers accordingly. Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1d5f660ff662d340ee120734c8ea2423857902b2 --- libavcodec/mpegvideo_dec.c | 6 ++++-- libavcodec/mpegvideodec.h | 9 +++++++++ 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/libavcodec/mpegvideo_dec.c b/libavcodec/mpegvideo_dec.c index 4019b4f0da..75c765218c 100644 --- a/libavcodec/mpegvideo_dec.c +++ b/libavcodec/mpegvideo_dec.c @@ -80,7 +80,7 @@ int ff_mpeg_update_thread_context(AVCodecContext *dst, { MpegEncContext *const s1 = src->priv_data; MpegEncContext *const s = dst->priv_data; - int ret; + int ret = 0; if (dst == src) return 0; @@ -102,6 +102,7 @@ int ff_mpeg_update_thread_context(AVCodecContext *dst, if (s1->context_initialized) { if ((err = ff_mpv_common_init(s)) < 0) return err; + ret = 1; } } @@ -110,6 +111,7 @@ int ff_mpeg_update_thread_context(AVCodecContext *dst, s->width = s1->width; if ((ret = ff_mpv_common_frame_size_change(s)) < 0) return ret; + ret = 1; } s->quarter_sample = s1->quarter_sample; @@ -139,7 +141,7 @@ int ff_mpeg_update_thread_context(AVCodecContext *dst, memcpy(&s->progressive_sequence, &s1->progressive_sequence, (char *) &s1->first_field + sizeof(s1->first_field) - (char *) &s1->progressive_sequence); - return 0; + return ret; } av_cold int ff_mpv_decode_close(AVCodecContext *avctx) diff --git a/libavcodec/mpegvideodec.h b/libavcodec/mpegvideodec.h index 6100364715..bc4bc90590 100644 --- a/libavcodec/mpegvideodec.h +++ b/libavcodec/mpegvideodec.h @@ -62,6 +62,15 @@ void ff_mpv_frame_end(MpegEncContext *s); int ff_mpv_export_qp_table(const MpegEncContext *s, AVFrame *f, const MPVPicture *p, int qp_type); +/** + * update_thread_context for mpegvideo-based decoders. It updates + * the MPVPictures and generic stream-level parameters. If necessary + * (on dimension changes), it also performs reinitialization. + * + * @retval 1 if a reinitialization happened + * @retval 0 on success if no reinitialization happened + * @retval "<0" error code + */ int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src); void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h); void ff_mpeg_flush(AVCodecContext *avctx); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
