Module: libav
Branch: master
Commit: b864b38397a2962d265ad39005265bac4fb001ef

Author:    Mike Melanson <[email protected]>
Committer: Anton Khirnov <[email protected]>
Date:      Sun Jan 29 21:24:41 2012 -0800

yuv4mpeg: allow YUV4MPEG2 demuxer to recognize 'C420' colorspace.

Current demuxer recognizes several colorspace formats that begin with 'C420'
but does not yet recognize plain 'C420'. GStreamer's y4menc component
generates .y4m files with a 'C420' colorspace. This new comparison is
placed after the other 'C420' checks so that it doesn't interfere with
them.

Signed-off-by: Anton Khirnov <[email protected]>

---

 libavformat/yuv4mpeg.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/libavformat/yuv4mpeg.c b/libavformat/yuv4mpeg.c
index afb5bfa..df0fc8f 100644
--- a/libavformat/yuv4mpeg.c
+++ b/libavformat/yuv4mpeg.c
@@ -244,6 +244,9 @@ static int yuv4_read_header(AVFormatContext *s)
             } else if (strncmp("420paldv", tokstart, 8) == 0) {
                 pix_fmt = PIX_FMT_YUV420P;
                 chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
+            } else if (strncmp("420", tokstart, 3) == 0) {
+                pix_fmt = PIX_FMT_YUV420P;
+                chroma_sample_location = AVCHROMA_LOC_CENTER;
             } else if (strncmp("411", tokstart, 3) == 0)
                 pix_fmt = PIX_FMT_YUV411P;
             else if (strncmp("422", tokstart, 3) == 0)

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