Move dca parser to its own file.

Originally committed as revision 8881 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 1 insertions, 108 deletions

diff --git a/libavcodec/dca.c b/libavcodec/dca.c
index 5081eaae93..c3ade2f042 100644
--- a/libavcodec/dca.c
+++ b/libavcodec/dca.c
@@ -35,15 +35,7 @@
 #include "bitstream.h"
 #include "dcadata.h"
 #include "dcahuff.h"
-#include "parser.h"
-
-/** DCA syncwords, also used for bitstream type detection */
-//@{
-#define DCA_MARKER_RAW_BE 0x7FFE8001
-#define DCA_MARKER_RAW_LE 0xFE7F0180
-#define DCA_MARKER_14B_BE 0x1FFFE800
-#define DCA_MARKER_14B_LE 0xFF1F00E8
-//@}
+#include "dca.h"
 
 //#define TRACE
 
@@ -1255,102 +1247,3 @@ AVCodec dca_decoder = {
     .init = dca_decode_init,
     .decode = dca_decode_frame,
 };
-
-#ifdef CONFIG_DCA_PARSER
-
-typedef struct DCAParseContext {
-    ParseContext pc;
-    uint32_t lastmarker;
-} DCAParseContext;
-
-#define IS_MARKER(state, i, buf, buf_size) \
- ((state == DCA_MARKER_14B_LE && (i < buf_size-2) && (buf[i+1] & 0xF0) == 0xF0 && buf[i+2] == 0x07) \
- || (state == DCA_MARKER_14B_BE && (i < buf_size-2) && buf[i+1] == 0x07 && (buf[i+2] & 0xF0) == 0xF0) \
- || state == DCA_MARKER_RAW_LE || state == DCA_MARKER_RAW_BE)
-
-/**
- * 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 dca_find_frame_end(DCAParseContext * pc1, const uint8_t * buf,
-                              int buf_size)
-{
-    int start_found, i;
-    uint32_t state;
-    ParseContext *pc = &pc1->pc;
-
-    start_found = pc->frame_start_found;
-    state = pc->state;
-
-    i = 0;
-    if (!start_found) {
-        for (i = 0; i < buf_size; i++) {
-            state = (state << 8) | buf[i];
-            if (IS_MARKER(state, i, buf, buf_size)) {
-                if (pc1->lastmarker && state == pc1->lastmarker) {
-                    start_found = 1;
-                    break;
-                } else if (!pc1->lastmarker) {
-                    start_found = 1;
-                    pc1->lastmarker = state;
-                    break;
-                }
-            }
-        }
-    }
-    if (start_found) {
-        for (; i < buf_size; i++) {
-            state = (state << 8) | buf[i];
-            if (state == pc1->lastmarker && IS_MARKER(state, i, buf, buf_size)) {
-                pc->frame_start_found = 0;
-                pc->state = -1;
-                return i - 3;
-            }
-        }
-    }
-    pc->frame_start_found = start_found;
-    pc->state = state;
-    return END_NOT_FOUND;
-}
-
-static int dca_parse_init(AVCodecParserContext * s)
-{
-    DCAParseContext *pc1 = s->priv_data;
-
-    pc1->lastmarker = 0;
-    return 0;
-}
-
-static int dca_parse(AVCodecParserContext * s,
-                     AVCodecContext * avctx,
-                     uint8_t ** poutbuf, int *poutbuf_size,
-                     const uint8_t * buf, int buf_size)
-{
-    DCAParseContext *pc1 = s->priv_data;
-    ParseContext *pc = &pc1->pc;
-    int next;
-
-    if (s->flags & PARSER_FLAG_COMPLETE_FRAMES) {
-        next = buf_size;
-    } else {
-        next = dca_find_frame_end(pc1, 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 dca_parser = {
-    {CODEC_ID_DTS},
-    sizeof(DCAParseContext),
-    dca_parse_init,
-    dca_parse,
-    ff_parse_close,
-};
-#endif /* CONFIG_DCA_PARSER */