Thilo Borgmann via ffmpeg-devel: > From: Josef Zlomek <jo...@pex.com> > > Fixes: 4907 > > Adds support for decoding of animated WebP. > > The WebP decoder adds the animation related features according to the specs: > https://developers.google.com/speed/webp/docs/riff_container#animation > The frames of the animation may be smaller than the image canvas. > Therefore, the frame is decoded to a temporary frame, > then it is blended into the canvas, the canvas is copied to the output frame, > and finally the frame is disposed from the canvas. > > The output to AV_PIX_FMT_YUVA420P/AV_PIX_FMT_YUV420P is still supported. > The background color is specified only as BGRA in the WebP file > so it is converted to YUVA if YUV formats are output. > > Signed-off-by: Josef Zlomek <jo...@pex.com> > --- > Changelog | 1 + > libavcodec/codec_desc.c | 3 +- > libavcodec/version.h | 2 +- > libavcodec/webp.c | 754 ++++++++++++++++++++++++++++++++++++---- > 4 files changed, 696 insertions(+), 64 deletions(-) > > @@ -1298,12 +1326,12 @@ static int vp8_lossy_decode_frame(AVCodecContext > *avctx, AVFrame *p, > int ret; > > if (!s->initialized) { > - ff_vp8_decode_init(avctx); > + VP8Context *s_vp8 = s->avctx_vp8->priv_data; > + s_vp8->actually_webp = 1; > s->initialized = 1; > - s->v.actually_webp = 1; > } > avctx->pix_fmt = s->has_alpha ? AV_PIX_FMT_YUVA420P : AV_PIX_FMT_YUV420P; > - s->lossless = 0; > + s->avctx_vp8->pix_fmt = avctx->pix_fmt; >
Separating webp.c from vp8.c should be done in commit of its own. And you did not really separate them, because you are overwriting internals of the VP8 decoder. - Andreas _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
