release buffer cleanup

Originally committed as revision 1839 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/cyuv.c

@@ -98,6 +98,9 @@ static int cyuv_decode_frame(AVCodecContext *avctx,
     /* pixel data starts 48 bytes in, after 3x16-byte tables */
     stream_ptr = 48;
 
+    if(s->frame.data[0])
+        avctx->release_buffer(avctx, &s->frame);
+
     s->frame.reference = 0;
     if(avctx->get_buffer(avctx, &s->frame) < 0) {
         fprintf(stderr, "get_buffer() failed\n");
@@ -159,8 +162,6 @@ static int cyuv_decode_frame(AVCodecContext *avctx,
     *data_size=sizeof(AVFrame);
     *(AVFrame*)data= s->frame;
 
-    avctx->release_buffer(avctx, &s->frame);
-
     return buf_size;
 }
 

libavcodec/dv.c

@@ -580,6 +580,9 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
     else
         avctx->aspect_ratio = 4.0 / 3.0;
 
+    if(s->picture.data[0])
+        avctx->release_buffer(avctx, &s->picture);
+    
     s->picture.reference= 0;
     if(avctx->get_buffer(avctx, &s->picture) < 0) {
         fprintf(stderr, "get_buffer() failed\n");
@@ -617,8 +620,6 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
     *data_size = sizeof(AVFrame);
     *(AVFrame*)data= s->picture;
     
-    avctx->release_buffer(avctx, &s->picture);
-    
     return packet_size;
 }
 

libavcodec/huffyuv.c

@@ -737,6 +737,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8
     
     init_get_bits(&s->gb, s->bitstream_buffer, buf_size*8);
 
+    if(p->data[0])
+        avctx->release_buffer(avctx, p);
+
     p->reference= 0;
     if(avctx->get_buffer(avctx, p) < 0){
         fprintf(stderr, "get_buffer() failed\n");
@@ -943,9 +946,6 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8
     emms_c();
     
     *picture= *p;
-    
-    avctx->release_buffer(avctx, p);
-
     *data_size = sizeof(AVFrame);
     
     return (get_bits_count(&s->gb)+31)/32*4;

libavcodec/indeo3.c

@@ -1056,6 +1056,9 @@ static int indeo3_decode_frame(AVCodecContext *avctx,
 
     iv_decode_frame(s, buf, buf_size);
 
+    if(s->frame.data[0])
+        avctx->release_buffer(avctx, &s->frame);
+
     s->frame.reference = 0;
     if(avctx->get_buffer(avctx, &s->frame) < 0) {
         fprintf(stderr, "get_buffer() failed\n");
@@ -1089,8 +1092,6 @@ static int indeo3_decode_frame(AVCodecContext *avctx,
     *data_size=sizeof(AVFrame);
     *(AVFrame*)data= s->frame;
 
-    avctx->release_buffer(avctx, &s->frame);
-
     return buf_size;
 }
 

libavcodec/mpegvideo.c

@@ -945,9 +945,15 @@ int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
             }
         }
     }
-    
 alloc:
     if(!s->encoding){
+        /* release non refernce frames */
+        for(i=0; i<MAX_PICTURE_COUNT; i++){
+            if(s->picture[i].data[0] && !s->picture[i].reference /*&& s->picture[i].type!=FF_BUFFER_TYPE_SHARED*/){
+                s->avctx->release_buffer(s->avctx, (AVFrame*)&s->picture[i]);
+            }
+        }
+
         i= find_unused_picture(s, 0);
     
         pic= (AVFrame*)&s->picture[i];
@@ -1041,12 +1047,14 @@ void MPV_frame_end(MpegEncContext *s)
     assert(i<MAX_PICTURE_COUNT);
 #endif    
 
+    if(s->encoding){
         /* release non refernce frames */
         for(i=0; i<MAX_PICTURE_COUNT; i++){
-        if(s->picture[i].data[0] && !s->picture[i].reference /*&& s->picture[i].type!=FF_BUFFER_TYPE_SHARED*/)
+            if(s->picture[i].data[0] && !s->picture[i].reference /*&& s->picture[i].type!=FF_BUFFER_TYPE_SHARED*/){
                 s->avctx->release_buffer(s->avctx, (AVFrame*)&s->picture[i]);
             }
-    
+        }
+    }
     // clear copies, to avoid confusion
 #if 0
     memset(&s->last_picture, 0, sizeof(Picture));