move all cavs-parsing to cavs.c

This should help building parser without decoder


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@6993 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/Makefile

@@ -294,7 +294,7 @@ OBJS-$(CONFIG_AMR_WB)                  += amrwb_float/dec_acelp.o \
 
 OBJS-$(CONFIG_AAC_PARSER)              += parser.o
 OBJS-$(CONFIG_AC3_PARSER)              += parser.o
-OBJS-$(CONFIG_CAVS_PARSER)             += parser.o
+OBJS-$(CONFIG_CAVSVIDEO_PARSER)        += cavs.o parser.o
 OBJS-$(CONFIG_DVBSUB_PARSER)           += dvbsubdec.o
 OBJS-$(CONFIG_DVDSUB_PARSER)           += dvdsubdec.o
 OBJS-$(CONFIG_H261_PARSER)             += h261.o

libavcodec/cavs.c

@@ -31,6 +31,7 @@
 #include "mpegvideo.h"
 #include "cavsdata.h"
 
+#ifdef CONFIG_CAVS_DECODER
 typedef struct {
     MpegEncContext s;
     Picture picture; ///< currently decoded frame
@@ -1318,49 +1319,6 @@ static int decode_seq_header(AVSContext *h) {
     return 0;
 }
 
-/**
- * finds the end of the current frame in the bitstream.
- * @return the position of the first byte of the next frame, or -1
- */
-int ff_cavs_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size) {
-    int pic_found, i;
-    uint32_t state;
-
-    pic_found= pc->frame_start_found;
-    state= pc->state;
-
-    i=0;
-    if(!pic_found){
-        for(i=0; i<buf_size; i++){
-            state= (state<<8) | buf[i];
-            if(state == PIC_I_START_CODE || state == PIC_PB_START_CODE){
-                i++;
-                pic_found=1;
-                break;
-            }
-        }
-    }
-
-    if(pic_found){
-        /* EOF considered as end of frame */
-        if (buf_size == 0)
-            return 0;
-        for(; i<buf_size; i++){
-            state= (state<<8) | buf[i];
-            if((state&0xFFFFFF00) == 0x100){
-                if(state < SLICE_MIN_START_CODE || state > SLICE_MAX_START_CODE){
-                    pc->frame_start_found=0;
-                    pc->state=-1;
-                    return i-3;
-                }
-            }
-        }
-    }
-    pc->frame_start_found= pic_found;
-    pc->state= state;
-    return END_NOT_FOUND;
-}
-
 void ff_cavs_flush(AVCodecContext * avctx) {
     AVSContext *h = avctx->priv_data;
     h->got_keyframe = 0;
@@ -1500,3 +1458,83 @@ AVCodec cavs_decoder = {
     CODEC_CAP_DR1 | CODEC_CAP_DELAY,
     .flush= ff_cavs_flush,
 };
+#endif /* CONFIG_CAVS_DECODER */
+
+#ifdef CONFIG_CAVSVIDEO_PARSER
+/**
+ * finds the end of the current frame in the bitstream.
+ * @return the position of the first byte of the next frame, or -1
+ */
+static int cavs_find_frame_end(ParseContext *pc, const uint8_t *buf,
+                               int buf_size) {
+    int pic_found, i;
+    uint32_t state;
+
+    pic_found= pc->frame_start_found;
+    state= pc->state;
+
+    i=0;
+    if(!pic_found){
+        for(i=0; i<buf_size; i++){
+            state= (state<<8) | buf[i];
+            if(state == PIC_I_START_CODE || state == PIC_PB_START_CODE){
+                i++;
+                pic_found=1;
+                break;
+            }
+        }
+    }
+
+    if(pic_found){
+        /* EOF considered as end of frame */
+        if (buf_size == 0)
+            return 0;
+        for(; i<buf_size; i++){
+            state= (state<<8) | buf[i];
+            if((state&0xFFFFFF00) == 0x100){
+                if(state < SLICE_MIN_START_CODE || state > SLICE_MAX_START_CODE){
+                    pc->frame_start_found=0;
+                    pc->state=-1;
+                    return i-3;
+                }
+            }
+        }
+    }
+    pc->frame_start_found= pic_found;
+    pc->state= state;
+    return END_NOT_FOUND;
+}
+
+static int cavsvideo_parse(AVCodecParserContext *s,
+                           AVCodecContext *avctx,
+                           uint8_t **poutbuf, int *poutbuf_size,
+                           const uint8_t *buf, int buf_size)
+{
+    ParseContext *pc = s->priv_data;
+    int next;
+
+    if(s->flags & PARSER_FLAG_COMPLETE_FRAMES){
+        next= buf_size;
+    }else{
+        next= cavs_find_frame_end(pc, buf, buf_size);
+
+        if (ff_combine_frame(pc, next, (uint8_t **)&buf, &buf_size) < 0) {
+            *poutbuf = NULL;
+            *poutbuf_size = 0;
+            return buf_size;
+        }
+    }
+    *poutbuf = (uint8_t *)buf;
+    *poutbuf_size = buf_size;
+    return next;
+}
+
+AVCodecParser cavsvideo_parser = {
+    { CODEC_ID_CAVS },
+    sizeof(ParseContext1),
+    NULL,
+    cavsvideo_parse,
+    ff_parse1_close,
+    ff_mpeg4video_split,
+};
+#endif /* CONFIG_CAVSVIDEO_PARSER */

libavcodec/cavsdata.h

@@ -131,6 +131,7 @@ enum mv_loc_t {
   MV_BWD_X3
 };
 
+#ifdef CONFIG_CAVS_DECODER
 static const uint8_t partition_flags[30] = {
   0,                                 //I_8X8
   0,                                 //P_SKIP
@@ -639,3 +640,4 @@ static const int_fast8_t left_modifier_l[8] = { 0,-1, 6,-1,-1, 7, 6, 7};
 static const int_fast8_t top_modifier_l[8]  = {-1, 1, 5,-1,-1, 5, 7, 7};
 static const int_fast8_t left_modifier_c[7] = { 5,-1, 2,-1, 6, 5, 6};
 static const int_fast8_t top_modifier_c[7]  = { 4, 1,-1,-1, 4, 6, 6};
+#endif /* CONFIG_CAVS_DECODER */

libavcodec/parser.c

@@ -361,32 +361,6 @@ static int mpeg4video_parse(AVCodecParserContext *s,
 }
 #endif
 
-#ifdef CONFIG_CAVSVIDEO_PARSER
-static int cavsvideo_parse(AVCodecParserContext *s,
-                           AVCodecContext *avctx,
-                           uint8_t **poutbuf, int *poutbuf_size,
-                           const uint8_t *buf, int buf_size)
-{
-    ParseContext *pc = s->priv_data;
-    int next;
-
-    if(s->flags & PARSER_FLAG_COMPLETE_FRAMES){
-        next= buf_size;
-    }else{
-        next= ff_cavs_find_frame_end(pc, buf, buf_size);
-
-        if (ff_combine_frame(pc, next, (uint8_t **)&buf, &buf_size) < 0) {
-            *poutbuf = NULL;
-            *poutbuf_size = 0;
-            return buf_size;
-        }
-    }
-    *poutbuf = (uint8_t *)buf;
-    *poutbuf_size = buf_size;
-    return next;
-}
-#endif /* CONFIG_CAVSVIDEO_PARSER */
-
 int ff_mpeg4video_split(AVCodecContext *avctx,
                            const uint8_t *buf, int buf_size)
 {
@@ -857,16 +831,6 @@ AVCodecParser mpeg4video_parser = {
     ff_mpeg4video_split,
 };
 #endif
-#ifdef CONFIG_CAVSVIDEO_PARSER
-AVCodecParser cavsvideo_parser = {
-    { CODEC_ID_CAVS },
-    sizeof(ParseContext1),
-    NULL,
-    cavsvideo_parse,
-    ff_parse1_close,
-    ff_mpeg4video_split,
-};
-#endif
 #ifdef CONFIG_MPEGAUDIO_PARSER
 AVCodecParser mpegaudio_parser = {
     { CODEC_ID_MP2, CODEC_ID_MP3 },

libavcodec/parser.h

@@ -60,7 +60,4 @@ void ff_parse1_close(AVCodecParserContext *s);
 /* h263dec.c */
 int ff_mpeg4_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);
 
-/* cavs.c */
-int ff_cavs_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);
-
 #endif /* !FFMPEG_PARSER_H */