[FFmpeg-cvslog] exr: support for reading pixelAspectRatio

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Mon Jul  9 00:51:22 2012 +0000| [07df939aa32f723deaec80cbfd6526912ee52348] | committer: Paul B Mahol

exr: support for reading pixelAspectRatio

Signed-off-by: Paul B Mahol <onemda at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=07df939aa32f723deaec80cbfd6526912ee52348
---

 libavcodec/exr.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/libavcodec/exr.c b/libavcodec/exr.c
index 5ff2c6f..6388794 100644
--- a/libavcodec/exr.c
+++ b/libavcodec/exr.c
@@ -300,6 +300,17 @@ static int decode_frame(AVCodecContext *avctx,
             continue;
         }
 
+        // Process the pixelAspectRatio variable
+        if (check_header_variable(avctx, &buf, buf_end, "pixelAspectRatio", "float", 31, &variable_buffer_data_size) >= 0) {
+            if (!variable_buffer_data_size)
+                return -1;
+
+            avctx->sample_aspect_ratio = av_d2q(av_int2float(AV_RL32(buf)), 255);
+
+            buf += variable_buffer_data_size;
+            continue;
+        }
+
         // Process the compression variable
         if (check_header_variable(avctx, &buf, buf_end, "compression", "compression", 29, &variable_buffer_data_size) >= 0) {
             if (!variable_buffer_data_size)