rv10 cleanup (de)muxer still needs to be cleaned up (still searching volunteer for that ;) )

Originally committed as revision 988 to svn://svn.ffmpeg.org/ffmpeg/trunk

libav/rm.c

@@ -591,12 +591,9 @@ static int rm_read_header(AVFormatContext *s, AVFormatParameters *ap)
                 h263_hack_version = get_be32(pb);
                 switch(h263_hack_version) {
                 case 0x10000000:
-                    st->codec.sub_id = 0;
-                    st->codec.codec_id = CODEC_ID_RV10;
-                    break;
                 case 0x10003000:
                 case 0x10003001:
-                    st->codec.sub_id = 3;
+                    st->codec.sub_id = h263_hack_version;
                     st->codec.codec_id = CODEC_ID_RV10;
                     break;
                 default:
@@ -681,7 +678,6 @@ static int rm_read_packet(AVFormatContext *s, AVPacket *pkt)
         goto redo;
     }
 
-#if 0 // XXX/FIXME this is done in the codec currently, but should be done here ...
     if (st->codec.codec_type == CODEC_TYPE_VIDEO) {
         int full_frame, h, pic_num;
  
@@ -705,15 +701,11 @@ static int rm_read_packet(AVFormatContext *s, AVPacket *pkt)
         /* picture number */
         pic_num= get_byte(pb);
 
-        av_new_packet(pkt, len+1);
+        //XXX/FIXME/HACK, demuxer should be fixed to send complete frames ...
-        pkt->stream_index = i;
+        if(st->codec.slice_offset==NULL) st->codec.slice_offset= (int*)malloc(sizeof(int));
-        
+        st->codec.slice_count= full_frame; 
-        //XXX/FIXME: is this a good idea?
+        st->codec.slice_offset[0]= 0;
-        pkt->data[0]= h; //store header, its needed for decoding
-        
-        get_buffer(pb, pkt->data+1, len);
     }
-#endif
 
     av_new_packet(pkt, len);
     pkt->stream_index = i;

libavcodec/avcodec.h

@@ -5,8 +5,8 @@
 
 #define LIBAVCODEC_VERSION_INT 0x000406
 #define LIBAVCODEC_VERSION     "0.4.6"
-#define LIBAVCODEC_BUILD       4629
+#define LIBAVCODEC_BUILD       4630
-#define LIBAVCODEC_BUILD_STR   "4629"
+#define LIBAVCODEC_BUILD_STR   "4630"
 
 enum CodecID {
     CODEC_ID_NONE, 
@@ -699,6 +699,19 @@ typedef struct AVCodecContext {
 #define FF_IDCT_MLIB         6
 #define FF_IDCT_ARM          7
 
+    /**
+     * slice count
+     * encoding: set by lavc
+     * decoding: set by user (or 0)
+     */
+    int slice_count;
+    /**
+     * slice offsets in the frame in bytes
+     * encoding: set/allocated by lavc
+     * decoding: set/allocated by user (or NULL)
+     */
+    int *slice_offset;
+
     //FIXME this should be reordered after kabis API is finished ...
     //TODO kill kabi
     /*

libavcodec/rv10.c

@@ -265,36 +265,17 @@ static int get_num(GetBitContext *gb)
 /* read RV 1.0 compatible frame header */
 static int rv10_decode_picture_header(MpegEncContext *s)
 {
-    int mb_count, pb_frame, marker, h, full_frame;
+    int mb_count, pb_frame, marker, full_frame, unk;
-    int pic_num, unk;
-    
-    //XXX/FIXME this should be done in the demuxer not here
-    /* skip packet header */
-    h = get_bits(&s->gb, 8);
-    if ((h & 0xc0) == 0xc0) {
-        int len, pos;
-        full_frame = 1;
-        len = get_num(&s->gb);
-        pos = get_num(&s->gb);
-//printf("pos:%d\n",len);
-    } else {
-        int seq, frame_size, pos;
-        full_frame = 0;
-        seq = get_bits(&s->gb, 8);
-        frame_size = get_num(&s->gb);
-        pos = get_num(&s->gb);
-//printf("seq:%d, size:%d, pos:%d\n",seq,frame_size,pos);
-    }
-    /* picture number */
-    pic_num= get_bits(&s->gb, 8);
     
+    full_frame= s->avctx->slice_count==1;
+//printf("ff:%d\n", full_frame);
     marker = get_bits(&s->gb, 1);
 
     if (get_bits(&s->gb, 1))
         s->pict_type = P_TYPE;
     else
         s->pict_type = I_TYPE;
-//printf("h:%d ver:%d\n",h,s->rv10_version);
+//printf("h:%X ver:%d\n",h,s->rv10_version);
     if(!marker) printf("marker missing\n");
     pb_frame = get_bits(&s->gb, 1);
 
@@ -329,7 +310,7 @@ static int rv10_decode_picture_header(MpegEncContext *s)
     }
     /* if multiple packets per frame are sent, the position at which
        to display the macro blocks is coded here */
-    if (!full_frame) {
+    if ((!full_frame) || show_bits(&s->gb, 12)==0) {
         s->mb_x = get_bits(&s->gb, 6);	/* mb_x */
         s->mb_y = get_bits(&s->gb, 6);	/* mb_y */
         mb_count = get_bits(&s->gb, 12);
@@ -358,8 +339,7 @@ static int rv10_decode_init(AVCodecContext *avctx)
     s->height = avctx->height;
 
     s->h263_rv10 = 1;
-    if(avctx->extradata_size >= 8){
+    switch(avctx->sub_id){
-        switch(((uint32_t*)avctx->extradata)[1]){
     case 0x10000000:
         s->rv10_version= 0;
         s->h263_long_vectors=0;
@@ -373,13 +353,9 @@ static int rv10_decode_init(AVCodecContext *avctx)
         s->h263_long_vectors=0;
         break;
     default:
-            fprintf(stderr, "unknown header %X\n", ((uint32_t*)avctx->extradata)[1]);
+        fprintf(stderr, "unknown header %X\n", avctx->sub_id);
     }
-    }else{
+//printf("ver:%X\n", avctx->sub_id);
-    //  for backward compatibility 
-        s->rv10_version= avctx->sub_id;
-    }
-    
     s->flags= avctx->flags;
 
     if (MPV_common_init(s) < 0)
@@ -412,24 +388,12 @@ static int rv10_decode_end(AVCodecContext *avctx)
     return 0;
 }
 
-static int rv10_decode_frame(AVCodecContext *avctx, 
+static int rv10_decode_packet(AVCodecContext *avctx, 
-                             void *data, int *data_size,
                              UINT8 *buf, int buf_size)
 {
     MpegEncContext *s = avctx->priv_data;
     int i, mb_count, mb_pos, left;
     DCTELEM block[6][64];
-    AVPicture *pict = data; 
-
-#ifdef DEBUG
-    printf("*****frame %d size=%d\n", avctx->frame_number, buf_size);
-#endif
-
-    /* no supplementary picture */
-    if (buf_size == 0) {
-        *data_size = 0;
-        return 0;
-    }
 
     init_get_bits(&s->gb, buf, buf_size);
     
@@ -510,8 +474,46 @@ static int rv10_decode_frame(AVCodecContext *avctx,
         }
     }
 
-    if (s->mb_x == 0 &&
+    return buf_size;
-        s->mb_y == s->mb_height) {
+}
+
+static int rv10_decode_frame(AVCodecContext *avctx, 
+                             void *data, int *data_size,
+                             UINT8 *buf, int buf_size)
+{
+    MpegEncContext *s = avctx->priv_data;
+    int i;
+    AVPicture *pict = data; 
+
+#ifdef DEBUG
+    printf("*****frame %d size=%d\n", avctx->frame_number, buf_size);
+#endif
+
+    /* no supplementary picture */
+    if (buf_size == 0) {
+        *data_size = 0;
+        return 0;
+    }
+    
+    if(avctx->slice_count){
+        for(i=0; i<avctx->slice_count; i++){
+            int offset= avctx->slice_offset[i];
+            int size;
+            
+            if(i+1 == avctx->slice_count)
+                size= buf_size - offset;
+            else
+                size= avctx->slice_offset[i+1] - offset;
+
+            if( rv10_decode_packet(avctx, buf+offset, size) < 0 )
+                return -1;
+        }
+    }else{
+        if( rv10_decode_packet(avctx, buf, buf_size) < 0 )
+            return -1;
+    }
+
+    if(s->mb_y>=s->mb_height){
         MPV_frame_end(s);
         
         pict->data[0] = s->current_picture[0];
@@ -526,6 +528,7 @@ static int rv10_decode_frame(AVCodecContext *avctx,
     }else{
         *data_size = 0;
     }
+
     return buf_size;
 }