From 30bf591dfa913e1524b9789cd5fae829ad494d00 Mon Sep 17 00:00:00 2001
From: konablend <kona8lend@gmail.com>
Date: Wed, 3 Jun 2009 03:55:55 +0000
Subject: - fixed regression: mov/png-sequence decoding. - regression was
 introduced in r2469 (ffmpeg-r18421); workaround is to disable CorePNG
 p-frames.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@2474 b64f7644-9d1e-0410-96f1-a4d463321fa5
---
 contrib/ffmpeg/A03-png-sequences.patch | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 contrib/ffmpeg/A03-png-sequences.patch

(limited to 'contrib')

diff --git a/contrib/ffmpeg/A03-png-sequences.patch b/contrib/ffmpeg/A03-png-sequences.patch
new file mode 100644
index 000000000..ee1708705
--- /dev/null
+++ b/contrib/ffmpeg/A03-png-sequences.patch
@@ -0,0 +1,26 @@
+diff -Naur ffmpeg-r19067.orig/libavcodec/pngdec.c ffmpeg-r19067/libavcodec/pngdec.c
+--- ffmpeg-r19067.orig/libavcodec/pngdec.c	2009-05-24 08:44:54.000000000 -0400
++++ ffmpeg-r19067/libavcodec/pngdec.c	2009-06-02 23:42:29.000000000 -0400
+@@ -593,6 +593,14 @@
+         }
+     }
+  exit_loop:
++/* ffmpeg-r18421 introduced support for CorePNG p-frames which
++ * breaks raw png sequences created by QuickTime Pro.
++ * since only the first png appears to be marked as PKT_FLAG_KEY
++ * it means either QuickTime Pro is encoding incorrectly, or
++ * this code block needs to find other criteria.
++ * --kb
++ */
++#if 0
+      /* handle p-frames only if a predecessor frame is available */
+      if(s->last_picture->data[0] != NULL) {
+          if(!(avpkt->flags & PKT_FLAG_KEY)) {
+@@ -609,6 +617,7 @@
+             }
+         }
+     }
++#endif
+ 
+     *picture= *s->current_picture;
+     *data_size = sizeof(AVFrame);
-- 
cgit v1.2.3