[FFmpeg-devel] [PATCH 1/3] jv demuxer: calculate palette_size for each frame in read_header

[Peter Ross]

---
 libavformat/jvdec.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/libavformat/jvdec.c b/libavformat/jvdec.c
index 90b6899..98fa6e7 100644
--- a/libavformat/jvdec.c
+++ b/libavformat/jvdec.c
@@ -31,7 +31,7 @@
 typedef struct {
     int audio_size;    /** audio packet size (bytes) */
     int video_size;    /** video packet size (bytes) */
-    int palette;       /** frame contains palette change */
+    int palette_size;  /** palette size (bytes) */
     int video_type;    /** per-frame video compression type */
 } JVFrame;
 
@@ -113,7 +113,7 @@ static int read_header(AVFormatContext *s,
 
         jvf->audio_size = avio_rl32(pb);
         jvf->video_size = avio_rl32(pb);
-        jvf->palette    = avio_r8(pb);
+        jvf->palette_size = avio_r8(pb) ? 768 : 0;
         if (avio_r8(pb))
              av_log(s, AV_LOG_WARNING, "unsupported audio codec\n");
         jvf->video_type = avio_r8(pb);
@@ -152,8 +152,8 @@ static int read_packet(AVFormatContext *s, AVPacket *pkt)
             }
         case JV_VIDEO:
             jv->state++;
-            if (jvf->video_size || jvf->palette) {
-                int size = jvf->video_size + (jvf->palette ? 768 : 0);
+            if (jvf->video_size || jvf->palette_size) {
+                int size = jvf->video_size + jvf->palette_size;
                 if (av_new_packet(pkt, size + 5))
                     return AVERROR(ENOMEM);
 
@@ -171,7 +171,7 @@ static int read_packet(AVFormatContext *s, AVPacket *pkt)
             }
         case JV_PADDING:
             avio_skip(pb, FFMAX(e->size - jvf->audio_size - jvf->video_size
-                                        - (jvf->palette ? 768 : 0), 0));
+                                        - jvf->palette_size, 0));
             jv->state = JV_AUDIO;
             jv->pts++;
         }
-- 
1.7.1


-- Peter
(A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
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