From 19ec283f49003072bc3b3e52247c507fb1dc9dcc Mon Sep 17 00:00:00 2001
From: Janne Grunau <janne-libav@jannau.net>
Date: Fri, 14 Oct 2011 12:18:23 +0200
Subject: [PATCH] prores: add missing feature warning for alpha
---
libavcodec/proresdec.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavcodec/proresdec.c b/libavcodec/proresdec.c
index 83c083fc9c5..2e0cbf1f264 100644
--- a/libavcodec/proresdec.c
+++ b/libavcodec/proresdec.c
@@ -71,6 +71,7 @@ typedef struct {
int slice_height_factor;
int num_x_mbs;
int num_y_mbs;
+ int alpha_info;
} ProresContext;
@@ -189,6 +190,10 @@ static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
ctx->picture.top_field_first = ctx->frame_type & 1;
}
+ ctx->alpha_info = buf[17] & 0xf;
+ if (ctx->alpha_info)
+ av_log_missing_feature(avctx, "alpha channel", 0);
+
ctx->qmat_changed = 0;
ptr = buf + 20;
flags = buf[19];
--
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