exr: support for reading pixelAspectRatio

Signed-off-by: Paul B Mahol <onemda@gmail.com>
13 years ago · 07df939aa3
parent 16a433d68b
commit 07df939aa3
1 changed files with 11 additions and 0 deletions
--- 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)