Add new_frame_start and need_next_header.

based on a patch by Bartlomiej

Originally committed as revision 12895 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/aac_ac3_parser.c

@@ -31,6 +31,7 @@ int ff_aac_ac3_parse(AVCodecParserContext *s1,
     AACAC3ParseContext *s = s1->priv_data;
     ParseContext *pc = &s->pc;
     int len, i;
+    int new_frame_start;
 
     i=END_NOT_FOUND;
     if(s->remaining_size <= buf_size){
@@ -41,7 +42,7 @@ int ff_aac_ac3_parse(AVCodecParserContext *s1,
             len=0;
             for(i=s->remaining_size; i<buf_size; i++){
                 s->state = (s->state<<8) + buf[i];
-                if((len=s->sync(s->state, s)))
+                if((len=s->sync(s->state, s, &s->need_next_header, &new_frame_start)))
                     break;
             }
             if(len<=0){

libavcodec/aac_ac3_parser.h

@@ -29,7 +29,8 @@
 typedef struct AACAC3ParseContext {
     int frame_size;
     int header_size;
-    int (*sync)(uint64_t state, struct AACAC3ParseContext *hdr_info);
+    int (*sync)(uint64_t state, struct AACAC3ParseContext *hdr_info,
+            int *need_next_header, int *new_frame_start);
 
     int channels;
     int sample_rate;
@@ -39,6 +40,8 @@ typedef struct AACAC3ParseContext {
     ParseContext pc;
     int remaining_size;
     uint64_t state;
+
+    int need_next_header;
 } AACAC3ParseContext;
 
 int ff_aac_ac3_parse(AVCodecParserContext *s1,

libavcodec/aac_parser.c

@@ -27,7 +27,8 @@
 
 #define AAC_HEADER_SIZE 7
 
-static int aac_sync(uint64_t state, AACAC3ParseContext *hdr_info)
+static int aac_sync(uint64_t state, AACAC3ParseContext *hdr_info,
+        int *need_next_header, int *new_frame_start)
 {
     GetBitContext bits;
     int size, rdb, ch, sr;
@@ -67,6 +68,8 @@ static int aac_sync(uint64_t state, AACAC3ParseContext *hdr_info)
     hdr_info->samples = (rdb + 1) * 1024;
     hdr_info->bit_rate = size * 8 * hdr_info->sample_rate / hdr_info->samples;
 
+    *need_next_header = 0;
+    *new_frame_start  = 1;
     return size;
 }
 

libavcodec/ac3_parser.c

@@ -123,7 +123,8 @@ int ff_ac3_parse_header(const uint8_t buf[7], AC3HeaderInfo *hdr)
     return 0;
 }
 
-static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info)
+static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info,
+        int *need_next_header, int *new_frame_start)
 {
     int err;
     uint64_t tmp = be2me_64(state);
@@ -139,6 +140,8 @@ static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info)
     hdr_info->channels = hdr.channels;
     hdr_info->samples = AC3_FRAME_SIZE;
 
+    *need_next_header = 0;
+    *new_frame_start  = 1;
     return hdr.frame_size;
 }