[FFmpeg-cvslog] pngdec: set correct range

[wm4]

ffmpeg | branch: master | wm4 <nfxjfg at googlemail.com> | Thu May  7 23:37:18 2015 +0200| [72e7553125e61847d9cab77fb7de62440dca746b] | committer: Michael Niedermayer

pngdec: set correct range

AV_PIX_FMT_GRAY8/16 are considered YUV formats, and the color_range is
not set - so the API user will have to assume limitted range. (Unless
the API user adds a special-case for the PNG decoder.)

Just export the correct range - full range.

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=72e7553125e61847d9cab77fb7de62440dca746b
---

 libavcodec/pngdec.c     |    2 ++
 tests/ref/fate/png-ya16 |    2 +-
 tests/ref/fate/png-ya8  |    2 +-
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index 1f8a77b..72d75fb 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -633,6 +633,8 @@ static int decode_idat_chunk(AVCodecContext *avctx, PNGDecContext *s,
             return AVERROR_INVALIDDATA;
         }
 
+        avctx->color_range = AVCOL_RANGE_JPEG;
+
         if ((ret = ff_thread_get_buffer(avctx, &s->picture, AV_GET_BUFFER_FLAG_REF)) < 0)
             return ret;
         ff_thread_finish_setup(avctx);
diff --git a/tests/ref/fate/png-ya16 b/tests/ref/fate/png-ya16
index 07906c4..dffdaf7 100644
--- a/tests/ref/fate/png-ya16
+++ b/tests/ref/fate/png-ya16
@@ -1,2 +1,2 @@
 #tb 0: 1/25
-0,          0,          0,        1,    49152, 0x93ce1cd5
+0,          0,          0,        1,    49152, 0x0801ce78
diff --git a/tests/ref/fate/png-ya8 b/tests/ref/fate/png-ya8
index 3a5c99d..1318af8 100644
--- a/tests/ref/fate/png-ya8
+++ b/tests/ref/fate/png-ya8
@@ -1,2 +1,2 @@
 #tb 0: 1/25
-0,          0,          0,        1,    49152, 0xed73bf03
+0,          0,          0,        1,    49152, 0x5a1481f8