[FFmpeg-cvslog] avcodec: add avpriv_color_frame()
Michael Niedermayer
git at videolan.org
Sat Feb 16 13:21:02 CET 2013
ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Feb 16 12:13:27 2013 +0100| [a53b144ec041ce6a7f7bd16115e41a8194b95ef7] | committer: Michael Niedermayer
avcodec: add avpriv_color_frame()
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a53b144ec041ce6a7f7bd16115e41a8194b95ef7
---
libavcodec/internal.h | 3 +++
libavcodec/utils.c | 22 ++++++++++++++++++++++
2 files changed, 25 insertions(+)
diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index cf8bbe5..867e36f 100644
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -124,6 +124,9 @@ unsigned int avpriv_toupper4(unsigned int x);
*/
void ff_init_buffer_info(AVCodecContext *s, AVFrame *frame);
+
+void avpriv_color_frame(AVFrame *frame, const int color[4]);
+
/**
* Remove and free all side data from packet.
*/
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 569f2ff..dc664d7 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -501,6 +501,28 @@ static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
return 0;
}
+void avpriv_color_frame(AVFrame *frame, const int c[4])
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
+ int p, y, x;
+
+ av_assert0(desc->flags & PIX_FMT_PLANAR);
+
+ for (p = 0; p<desc->nb_components; p++) {
+ uint8_t *dst = frame->data[p];
+ int is_chroma = p == 1 || p == 2;
+ int bytes = -((-frame->width) >> (is_chroma ? desc->log2_chroma_w : 0));
+ for (y = 0; y<-((-frame->height) >> (is_chroma ? desc->log2_chroma_h : 0)); y++){
+ if (desc->comp[0].depth_minus1 >= 8) {
+ for (x = 0; x<bytes; x++)
+ ((uint16_t*)dst)[x] = c[p];
+ }else
+ memset(dst, c[p], bytes);
+ dst += frame->linesize[p];
+ }
+ }
+}
+
int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame)
{
frame->type = FF_BUFFER_TYPE_INTERNAL;
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