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wmv1 support

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Originally committed as revision 697 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2002-06-18 00:50:20 +00:00
parent f5957f3fe2
commit 0151a6f546
4 changed files with 114 additions and 11 deletions
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85
libavcodec/msmpeg4data.h
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@ -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,
};