wmv1 support

Originally committed as revision 697 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/allcodecs.c

@@ -48,6 +48,8 @@ void avcodec_register_all(void)
     register_avcodec(&msmpeg4v1_encoder);
     register_avcodec(&msmpeg4v2_encoder);
     register_avcodec(&msmpeg4v3_encoder);
+    register_avcodec(&wmv1_encoder);
+    register_avcodec(&wmv2_encoder);
 #endif /* CONFIG_ENCODERS */
     register_avcodec(&rawvideo_codec);
 
@@ -59,6 +61,7 @@ void avcodec_register_all(void)
     register_avcodec(&msmpeg4v2_decoder);
     register_avcodec(&msmpeg4v3_decoder);
     register_avcodec(&wmv1_decoder);
+    register_avcodec(&wmv2_decoder);
     register_avcodec(&mpeg_decoder);
     register_avcodec(&h263i_decoder);
     register_avcodec(&rv10_decoder);

libavcodec/avcodec.h

@@ -329,6 +329,8 @@ extern AVCodec mpeg4_encoder;
 extern AVCodec msmpeg4v1_encoder;
 extern AVCodec msmpeg4v2_encoder;
 extern AVCodec msmpeg4v3_encoder;
+extern AVCodec wmv1_encoder;
+extern AVCodec wmv2_encoder;
 
 extern AVCodec h263_decoder;
 extern AVCodec mpeg4_decoder;
@@ -336,6 +338,7 @@ extern AVCodec msmpeg4v1_decoder;
 extern AVCodec msmpeg4v2_decoder;
 extern AVCodec msmpeg4v3_decoder;
 extern AVCodec wmv1_decoder;
+extern AVCodec wmv2_decoder;
 extern AVCodec mpeg_decoder;
 extern AVCodec h263i_decoder;
 extern AVCodec rv10_decoder;

libavcodec/mpegvideo.h

@@ -41,6 +41,10 @@ enum OutputFormat {
 #define ME_MAP_SHIFT 3
 #define ME_MAP_MV_BITS 11
 
+/* run length table */
+#define MAX_RUN    64
+#define MAX_LEVEL  64
+
 typedef struct Predictor{
     double coeff;
     double count;
@@ -143,6 +147,8 @@ typedef struct MpegEncContext {
     int last_dc[3];              /* last DC values for MPEG1 */
     INT16 *dc_val[3];            /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
     int y_dc_scale, c_dc_scale;
+    UINT8 *y_dc_scale_table;     /* qscale -> y_dc_scale table */
+    UINT8 *c_dc_scale_table;     /* qscale -> c_dc_scale table */
     UINT8 *coded_block;          /* used for coded block pattern prediction (msmpeg4v3, wmv1)*/
     INT16 (*ac_val[3])[16];      /* used for for mpeg4 AC prediction, all 3 arrays must be continuous */
     int ac_pred;
@@ -376,7 +382,18 @@ typedef struct MpegEncContext {
     int slice_height;      /* in macroblocks */
     int first_slice_line;  /* used in mpeg4 too to handle resync markers */
     int flipflop_rounding;
-    int msmpeg4_version;   /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 */
+    int msmpeg4_version;   /* 0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8*/
+    int per_mb_rl_table;
+    int esc3_level_length;
+    int esc3_run_length;
+    UINT8 *inter_scantable;
+    UINT8 *intra_scantable;
+    UINT8 *intra_v_scantable;
+    UINT8 *intra_h_scantable;
+    /* [mb_intra][isChroma][level][run][last] */
+    int ac_stats[2][2][MAX_LEVEL+1][MAX_RUN+1][2];
+    
+
     /* decompression specific */
     GetBitContext gb;
 
@@ -452,19 +469,16 @@ void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, i
 /* mpeg12.c */
 extern INT16 default_intra_matrix[64];
 extern INT16 default_non_intra_matrix[64];
+extern UINT8 ff_mpeg1_dc_scale_table[128];
 
 void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
 void mpeg1_encode_mb(MpegEncContext *s,
                      DCTELEM block[6][64],
                      int motion_x, int motion_y);
-void mpeg1_encode_init(MpegEncContext *s);
+void ff_mpeg1_encode_init(MpegEncContext *s);
 
 /* h263enc.c */
 
-/* run length table */
-#define MAX_RUN    64
-#define MAX_LEVEL  64
-
 typedef struct RLTable {
     int n; /* number of entries of table_vlc minus 1 */
     int last; /* number of values for last = 0 */
@@ -491,6 +505,8 @@ static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
     return index + level - 1;
 }
 
+extern UINT8 ff_mpeg4_y_dc_scale_table[32];
+extern UINT8 ff_mpeg4_c_dc_scale_table[32];
 void h263_encode_mb(MpegEncContext *s, 
                     DCTELEM block[6][64],
                     int motion_x, int motion_y);
@@ -499,7 +515,6 @@ void mpeg4_encode_mb(MpegEncContext *s,
                     int motion_x, int motion_y);
 void h263_encode_picture_header(MpegEncContext *s, int picture_number);
 int h263_encode_gob_header(MpegEncContext * s, int mb_line);
-void h263_dc_scale(MpegEncContext *s);
 INT16 *h263_pred_motion(MpegEncContext * s, int block, 
                         int *px, int *py);
 void mpeg4_pred_ac(MpegEncContext * s, INT16 *block, int n, 
@@ -523,6 +538,7 @@ void ff_mpeg4_clean_buffers(MpegEncContext *s);
 void ff_mpeg4_stuffing(PutBitContext * pbc);
 void ff_mpeg4_init_partitions(MpegEncContext *s);
 void ff_mpeg4_merge_partitions(MpegEncContext *s);
+extern inline int ff_mpeg4_pred_dc(MpegEncContext * s, int n, UINT16 **dc_val_ptr, int *dir_ptr);
 
 /* rv10.c */
 void rv10_encode_picture_header(MpegEncContext *s, int picture_number);
@@ -538,8 +554,8 @@ int msmpeg4_decode_picture_header(MpegEncContext * s);
 int msmpeg4_decode_ext_header(MpegEncContext * s, int buf_size);
 int msmpeg4_decode_mb(MpegEncContext *s, 
                       DCTELEM block[6][64]);
-int msmpeg4_decode_init_vlc(MpegEncContext *s);
-void ff_old_msmpeg4_dc_scale(MpegEncContext *s);
+int ff_msmpeg4_decode_init(MpegEncContext *s);
+void ff_msmpeg4_encode_init(MpegEncContext *s);
 
 /* mjpegenc.c */
 

libavcodec/msmpeg4data.h

@@ -578,8 +578,8 @@ extern const UINT8 mvtab[33][2];
 extern const UINT8 intra_MCBPC_code[8];
 extern const UINT8 intra_MCBPC_bits[8];
 
-extern const UINT8 inter_MCBPC_code[8];
-extern const UINT8 inter_MCBPC_bits[8];
+extern const UINT8 inter_MCBPC_code[25];
+extern const UINT8 inter_MCBPC_bits[25];
 
 #define NB_RL_TABLES  6
 
@@ -1761,6 +1761,17 @@ static const UINT8 table1_mvy[1099] = {
  34, 28, 21,
 };
 
+/* motion vector table */
+typedef struct MVTable {
+    int n;
+    const UINT16 *table_mv_code;
+    const UINT8 *table_mv_bits;
+    const UINT8 *table_mvx;
+    const UINT8 *table_mvy;
+    UINT16 *table_mv_index; /* encoding: convert mv to index in table_mv */
+    VLC vlc;                /* decoding: vlc */
+} MVTable;
+
 static MVTable mv_tables[2] = {
     {
         1099,
@@ -1786,3 +1797,73 @@ static const UINT8 v2_mb_type[8][2] = {
 static const UINT8 v2_intra_cbpc[4][2] = {
  {1, 1}, {0, 3}, {1, 3}, {1, 2},
 };
+
+static UINT8 wmv1_y_dc_scale_table[32]={
+//  0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
+    0, 8, 8, 8, 8, 8, 9, 9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21
+};
+static UINT8 wmv1_c_dc_scale_table[32]={
+//  0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
+    0, 8, 8, 8, 8, 9, 9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21,22
+};
+
+static UINT8 old_ff_y_dc_scale_table[32]={
+//  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
+    0, 8, 8, 8, 8,10,12,14,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39
+};
+static UINT8 old_ff_c_dc_scale_table[32]={
+//  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
+    0, 8, 8, 8, 8, 9, 9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,20,20,21,21,22
+};
+
+
+#define WMV1_SCANTABLE_COUNT 4
+
+static UINT8 wmv1_scantable00[64]= {
+0x00, 0x08, 0x01, 0x02, 0x09, 0x10, 0x18, 0x11, 
+0x0A, 0x03, 0x04, 0x0B, 0x12, 0x19, 0x20, 0x28, 
+0x30, 0x38, 0x29, 0x21, 0x1A, 0x13, 0x0C, 0x05, 
+0x06, 0x0D, 0x14, 0x1B, 0x22, 0x31, 0x39, 0x3A, 
+0x32, 0x2A, 0x23, 0x1C, 0x15, 0x0E, 0x07, 0x0F, 
+0x16, 0x1D, 0x24, 0x2B, 0x33, 0x3B, 0x3C, 0x34, 
+0x2C, 0x25, 0x1E, 0x17, 0x1F, 0x26, 0x2D, 0x35, 
+0x3D, 0x3E, 0x36, 0x2E, 0x27, 0x2F, 0x37, 0x3F, 
+};
+static UINT8 wmv1_scantable01[64]= {
+0x00, 0x08, 0x01, 0x02, 0x09, 0x10, 0x18, 0x11, 
+0x0A, 0x03, 0x04, 0x0B, 0x12, 0x19, 0x20, 0x28, 
+0x21, 0x30, 0x1A, 0x13, 0x0C, 0x05, 0x06, 0x0D, 
+0x14, 0x1B, 0x22, 0x29, 0x38, 0x31, 0x39, 0x2A, 
+0x23, 0x1C, 0x15, 0x0E, 0x07, 0x0F, 0x16, 0x1D, 
+0x24, 0x2B, 0x32, 0x3A, 0x33, 0x3B, 0x2C, 0x25, 
+0x1E, 0x17, 0x1F, 0x26, 0x2D, 0x34, 0x3C, 0x35, 
+0x3D, 0x2E, 0x27, 0x2F, 0x36, 0x3E, 0x37, 0x3F, 
+};
+static UINT8 wmv1_scantable02[64]= {
+0x00, 0x01, 0x08, 0x02, 0x03, 0x09, 0x10, 0x18, 
+0x11, 0x0A, 0x04, 0x05, 0x0B, 0x12, 0x19, 0x20, 
+0x28, 0x30, 0x21, 0x1A, 0x13, 0x0C, 0x06, 0x07, 
+0x0D, 0x14, 0x1B, 0x22, 0x29, 0x38, 0x31, 0x39, 
+0x2A, 0x23, 0x1C, 0x15, 0x0E, 0x0F, 0x16, 0x1D, 
+0x24, 0x2B, 0x32, 0x3A, 0x33, 0x2C, 0x25, 0x1E, 
+0x17, 0x1F, 0x26, 0x2D, 0x34, 0x3B, 0x3C, 0x35, 
+0x2E, 0x27, 0x2F, 0x36, 0x3D, 0x3E, 0x37, 0x3F, 
+};
+static UINT8 wmv1_scantable03[64]= {
+0x00, 0x08, 0x10, 0x01, 0x18, 0x20, 0x28, 0x09, 
+0x02, 0x03, 0x0A, 0x11, 0x19, 0x30, 0x38, 0x29, 
+0x21, 0x1A, 0x12, 0x0B, 0x04, 0x05, 0x0C, 0x13, 
+0x1B, 0x22, 0x31, 0x39, 0x32, 0x2A, 0x23, 0x1C, 
+0x14, 0x0D, 0x06, 0x07, 0x0E, 0x15, 0x1D, 0x24, 
+0x2B, 0x33, 0x3A, 0x3B, 0x34, 0x2C, 0x25, 0x1E, 
+0x16, 0x0F, 0x17, 0x1F, 0x26, 0x2D, 0x3C, 0x35, 
+0x2E, 0x27, 0x2F, 0x36, 0x3D, 0x3E, 0x37, 0x3F, 
+};
+
+static UINT8 *wmv1_scantable[WMV1_SCANTABLE_COUNT+1]={
+    wmv1_scantable00,
+    wmv1_scantable01,
+    wmv1_scantable02,
+    wmv1_scantable03,
+};
+