Originally committed as revision 11097 to svn://svn.ffmpeg.org/ffmpeg/trunktags/v0.5
| @@ -21,7 +21,7 @@ | |||
| /** | |||
| * @file rv30data.h | |||
| * Miscellaneous RV30 tables. | |||
| * miscellaneous RV30 tables | |||
| */ | |||
| #ifndef FFMPEG_RV30DATA_H | |||
| @@ -36,8 +36,8 @@ static const uint8_t rv30_luma_dc_quant[32] = { | |||
| }; | |||
| /** | |||
| * This table is used for storing differences | |||
| * between predicted and real intra type. | |||
| * This table is used for storing the differences | |||
| * between the predicted and the real intra type. | |||
| */ | |||
| static const uint8_t rv30_itype_code[9*9*2] = { | |||
| 0, 0, 0, 1, 1, 0, 1, 1, 0, 2, 2, 0, 0, 3, 3, 0, 1, 2, | |||
| @@ -52,13 +52,13 @@ static const uint8_t rv30_itype_code[9*9*2] = { | |||
| }; | |||
| /** | |||
| * This table is used for retrieving current intra type | |||
| * basing on its neighbours and adjustment provided by | |||
| * This table is used for retrieving the current intra type | |||
| * based on its neighbors and adjustment provided by | |||
| * code read and decoded before. | |||
| * | |||
| * This is really three-dimensional matrix with dimensions | |||
| * [-1..9][-1..9][0..9], first and second coordinates | |||
| * are detemined by top and left neighbours (-1 if unavailable). | |||
| * This is really a three-dimensional matrix with dimensions | |||
| * [-1..9][-1..9][0..9]. The first and second coordinates are | |||
| * detemined by the top and left neighbors (-1 if unavailable). | |||
| */ | |||
| static const uint8_t rv30_itype_from_context[900] = { | |||
| 0, 9, 9, 9, 9, 9, 9, 9, 9, | |||
| @@ -21,7 +21,7 @@ | |||
| /** | |||
| * @file rv34data.h | |||
| * Miscellaneous RV30/40 tables. | |||
| * miscellaneous RV30/40 tables | |||
| */ | |||
| #ifndef FFMPEG_RV34DATA_H | |||
| @@ -30,14 +30,14 @@ | |||
| #include <stdint.h> | |||
| /** | |||
| * Number of ones in nibble minus one | |||
| * number of ones in nibble minus one | |||
| */ | |||
| static const uint8_t rv34_count_ones[16] = { | |||
| 0, 0, 0, 1, 0, 1, 1, 2, 0, 1, 1, 2, 1, 2, 2, 3 | |||
| }; | |||
| /** | |||
| * Values used to reconstruct coded block pattern | |||
| * Values used to reconstruct coded block pattern. | |||
| */ | |||
| static const uint8_t rv34_cbp_code[16] = { | |||
| 0x00, 0x20, 0x10, 0x30, 0x02, 0x22, 0x12, 0x32, | |||
| @@ -45,10 +45,10 @@ static const uint8_t rv34_cbp_code[16] = { | |||
| }; | |||
| /** | |||
| * Precalculated results of division by three and modulo three for values 0-107 | |||
| * precalculated results of division by three and modulo three for values 0-107 | |||
| * | |||
| * A lot of four-tuples in RV40 are represented as c0*27+c1*9+c2*3+c3 | |||
| * This table allows conversion from value back to vector | |||
| * A lot of four-tuples in RV40 are represented as c0*27+c1*9+c2*3+c3. | |||
| * This table allows conversion from a value back to a vector. | |||
| */ | |||
| static const uint8_t modulo_three_table[108][4] = { | |||
| { 0, 0, 0, 0 }, { 0, 0, 0, 1 }, { 0, 0, 0, 2 }, { 0, 0, 1, 0 }, | |||
| @@ -81,7 +81,7 @@ static const uint8_t modulo_three_table[108][4] = { | |||
| }; | |||
| /** | |||
| * Quantizer values used for AC and DC coefficients in chroma blocks | |||
| * quantizer values used for AC and DC coefficients in chroma blocks | |||
| */ | |||
| static const uint8_t rv34_chroma_quant[2][32] = { | |||
| { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, | |||
| @@ -91,7 +91,7 @@ static const uint8_t rv34_chroma_quant[2][32] = { | |||
| }; | |||
| /** | |||
| * This table is used for dequantizing | |||
| * This table is used for dequantizing. | |||
| */ | |||
| static const uint16_t rv34_qscale_tab[32] = { | |||
| 60, 67, 76, 85, 96, 108, 121, 136, | |||
| @@ -111,8 +111,8 @@ static const uint8_t rv34_dezigzag[16] = { | |||
| }; | |||
| /** | |||
| * Tables used to translate quantizer value into VLC set for decoding | |||
| * First table is used for intraframes. | |||
| * tables used to translate a quantizer value into a VLC set for decoding | |||
| * The first table is used for intraframes. | |||
| */ | |||
| static const uint8_t rv34_quant_to_vlc_set[2][31] = { | |||
| { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, | |||
| @@ -122,8 +122,8 @@ static const uint8_t rv34_quant_to_vlc_set[2][31] = { | |||
| }; | |||
| /** | |||
| * Table for obtaining quantizer difference | |||
| * @todo replace it with modified_quant_tab from h263data.h | |||
| * table for obtaining the quantizer difference | |||
| * @todo Replace it with modified_quant_tab from h263data.h. | |||
| */ | |||
| static const int8_t rv34_dquant_tab[] = { | |||
| 0, 0, 2, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, | |||
| @@ -133,13 +133,13 @@ static const int8_t rv34_dquant_tab[] = { | |||
| }; | |||
| /** | |||
| * Maximum number of macroblocks for each of the possible slice offset sizes | |||
| * @todo this is the same as ff_mba_max, maybe use it instead | |||
| * maximum number of macroblocks for each of the possible slice offset sizes | |||
| * @todo This is the same as ff_mba_max, maybe use it instead. | |||
| */ | |||
| static const uint16_t rv34_mb_max_sizes[6] = { 0x2F, 0x68, 0x18B, 0x62F, 0x18BF, 0x23FF }; | |||
| /** | |||
| * Bits needed to code slice offset for the given size | |||
| * @todo this is the same as ff_mba_length, maybe use it instead | |||
| * bits needed to code the slice offset for the given size | |||
| * @todo This is the same as ff_mba_length, maybe use it instead. | |||
| */ | |||
| static const uint8_t rv34_mb_bits_sizes[6] = { 6, 7, 9, 11, 13, 14 }; | |||
| @@ -21,7 +21,7 @@ | |||
| /** | |||
| * @file rv40data.h | |||
| * Miscellaneous RV40 tables. | |||
| * miscellaneous RV40 tables | |||
| */ | |||
| #ifndef FFMPEG_RV40DATA_H | |||
| @@ -30,7 +30,7 @@ | |||
| #include <stdint.h> | |||
| /** | |||
| * Standard widths and heights coded in RV40 | |||
| * standard widths and heights coded in RV40 | |||
| */ | |||
| //@{ | |||
| static const int rv40_standard_widths[] = { 160, 172, 240, 320, 352, 640, 704, 0}; | |||
| @@ -40,10 +40,10 @@ static const int rv40_standard_heights2[] = { 180, 360, 576, 0}; | |||
| #define MODE2_PATTERNS_NUM 20 | |||
| /** | |||
| * Intra types table | |||
| * intra types table | |||
| * | |||
| * These values are actually coded 3-tuples | |||
| * used for detecting standard block configurations | |||
| * used for detecting standard block configurations. | |||
| */ | |||
| static const uint16_t rv40_aic_table_index[MODE2_PATTERNS_NUM] = { | |||
| 0x000, 0x100, 0x200, | |||
| @@ -55,8 +55,8 @@ static const uint16_t rv40_aic_table_index[MODE2_PATTERNS_NUM] = { | |||
| }; | |||
| /** | |||
| * Luma quantizer values | |||
| * Second table is used for inter blocks | |||
| * luma quantizer values | |||
| * The second table is used for inter blocks. | |||
| */ | |||
| static const uint8_t rv40_luma_dc_quant[2][32] = { | |||
| { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, | |||
| @@ -66,18 +66,18 @@ static const uint8_t rv40_luma_dc_quant[2][32] = { | |||
| }; | |||
| /** | |||
| * @begingroup loopfilter coefficients used by RV40 loop filter | |||
| * @begingroup loopfilter coefficients used by the RV40 loop filter | |||
| * @{ | |||
| */ | |||
| /** | |||
| * Dither values for deblocking filter - left/top values | |||
| * dither values for deblocking filter - left/top values | |||
| */ | |||
| static const uint8_t rv40_dither_l[16] = { | |||
| 0x40, 0x50, 0x20, 0x60, 0x30, 0x50, 0x40, 0x30, | |||
| 0x50, 0x40, 0x50, 0x30, 0x60, 0x20, 0x50, 0x40 | |||
| }; | |||
| /** | |||
| * Dither values for deblocking filter - right/bottom values | |||
| * dither values for deblocking filter - right/bottom values | |||
| */ | |||
| static const uint8_t rv40_dither_r[16] = { | |||
| 0x40, 0x30, 0x60, 0x20, 0x50, 0x30, 0x30, 0x40, | |||
| @@ -21,7 +21,7 @@ | |||
| /** | |||
| * @file rv40vlc2.h | |||
| * RV40 VLC tables used for macroblock information decoding. | |||
| * RV40 VLC tables used for macroblock information decoding | |||
| */ | |||
| #ifndef FFMPEG_RV40VLC2_H | |||
| @@ -30,7 +30,7 @@ | |||
| #include <stdint.h> | |||
| /** | |||
| * Codes used for the first four block types | |||
| * codes used for the first four block types | |||
| */ | |||
| //@{ | |||
| #define AIC_TOP_BITS 8 | |||
| @@ -46,7 +46,7 @@ static const uint8_t rv40_aic_top_vlc_bits[AIC_TOP_SIZE] = { | |||
| //@} | |||
| /** | |||
| * Codes used for determining pair of block types | |||
| * codes used for determining a pair of block types | |||
| */ | |||
| //@{ | |||
| #define AIC_MODE2_NUM 20 | |||
| @@ -634,7 +634,7 @@ static const uint8_t aic_mode1_vlc_bits[AIC_MODE1_NUM][AIC_MODE1_SIZE] = { | |||
| #define PBTYPE_ESCAPE 0xFF | |||
| /** Tables used for P-frame macroblock type decoding */ | |||
| /** tables used for P-frame macroblock type decoding */ | |||
| //@{ | |||
| #define NUM_PTYPE_VLCS 7 | |||
| #define PTYPE_VLC_SIZE 8 | |||
| @@ -670,7 +670,7 @@ static const uint8_t block_num_to_ptype_vlc_num[12] = { | |||
| }; | |||
| //@} | |||
| /** Tables used for P-frame macroblock type decoding */ | |||
| /** tables used for P-frame macroblock type decoding */ | |||
| //@{ | |||
| #define NUM_BTYPE_VLCS 6 | |||
| #define BTYPE_VLC_SIZE 7 | |||