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4349 | Serge | 1 | /* |
2 | * This file is part of FFmpeg. |
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3 | * |
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4 | * FFmpeg is free software; you can redistribute it and/or |
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5 | * modify it under the terms of the GNU Lesser General Public |
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6 | * License as published by the Free Software Foundation; either |
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7 | * version 2.1 of the License, or (at your option) any later version. |
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8 | * |
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9 | * FFmpeg is distributed in the hope that it will be useful, |
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10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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12 | * Lesser General Public License for more details. |
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13 | * |
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14 | * You should have received a copy of the GNU Lesser General Public |
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15 | * License along with FFmpeg; if not, write to the Free Software |
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16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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17 | */ |
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18 | |||
19 | #include |
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20 | |||
21 | #include "libavutil/common.h" |
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22 | #include "libavutil/intreadwrite.h" |
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23 | #include "libavutil/log.h" |
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24 | #include "libavutil/pixdesc.h" |
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25 | #include "avcodec.h" |
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26 | #include "dv_profile.h" |
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27 | |||
28 | static DVwork_chunk work_chunks_dv25pal [1*12*27]; |
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29 | static DVwork_chunk work_chunks_dv25pal411[1*12*27]; |
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30 | static DVwork_chunk work_chunks_dv25ntsc [1*10*27]; |
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31 | static DVwork_chunk work_chunks_dv50pal [2*12*27]; |
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32 | static DVwork_chunk work_chunks_dv50ntsc [2*10*27]; |
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33 | static DVwork_chunk work_chunks_dv100palp [2*12*27]; |
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34 | static DVwork_chunk work_chunks_dv100ntscp[2*10*27]; |
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35 | static DVwork_chunk work_chunks_dv100pali [4*12*27]; |
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36 | static DVwork_chunk work_chunks_dv100ntsci[4*10*27]; |
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37 | |||
38 | static uint32_t dv_idct_factor_sd [2*2*22*64]; |
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39 | static uint32_t dv_idct_factor_hd1080[2*4*16*64]; |
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40 | static uint32_t dv_idct_factor_hd720 [2*4*16*64]; |
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41 | |||
42 | static const uint8_t dv_audio_shuffle525[10][9] = { |
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43 | { 0, 30, 60, 20, 50, 80, 10, 40, 70 }, /* 1st channel */ |
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44 | { 6, 36, 66, 26, 56, 86, 16, 46, 76 }, |
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45 | { 12, 42, 72, 2, 32, 62, 22, 52, 82 }, |
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46 | { 18, 48, 78, 8, 38, 68, 28, 58, 88 }, |
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47 | { 24, 54, 84, 14, 44, 74, 4, 34, 64 }, |
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48 | |||
49 | { 1, 31, 61, 21, 51, 81, 11, 41, 71 }, /* 2nd channel */ |
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50 | { 7, 37, 67, 27, 57, 87, 17, 47, 77 }, |
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51 | { 13, 43, 73, 3, 33, 63, 23, 53, 83 }, |
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52 | { 19, 49, 79, 9, 39, 69, 29, 59, 89 }, |
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53 | { 25, 55, 85, 15, 45, 75, 5, 35, 65 }, |
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54 | }; |
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55 | |||
56 | static const uint8_t dv_audio_shuffle625[12][9] = { |
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57 | { 0, 36, 72, 26, 62, 98, 16, 52, 88}, /* 1st channel */ |
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58 | { 6, 42, 78, 32, 68, 104, 22, 58, 94}, |
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59 | { 12, 48, 84, 2, 38, 74, 28, 64, 100}, |
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60 | { 18, 54, 90, 8, 44, 80, 34, 70, 106}, |
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61 | { 24, 60, 96, 14, 50, 86, 4, 40, 76}, |
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62 | { 30, 66, 102, 20, 56, 92, 10, 46, 82}, |
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63 | |||
64 | { 1, 37, 73, 27, 63, 99, 17, 53, 89}, /* 2nd channel */ |
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65 | { 7, 43, 79, 33, 69, 105, 23, 59, 95}, |
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66 | { 13, 49, 85, 3, 39, 75, 29, 65, 101}, |
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67 | { 19, 55, 91, 9, 45, 81, 35, 71, 107}, |
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68 | { 25, 61, 97, 15, 51, 87, 5, 41, 77}, |
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69 | { 31, 67, 103, 21, 57, 93, 11, 47, 83}, |
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70 | }; |
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71 | |||
72 | /* macroblock bit budgets */ |
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73 | static const uint8_t block_sizes_dv2550[8] = { |
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74 | 112, 112, 112, 112, 80, 80, 0, 0, |
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75 | }; |
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76 | |||
77 | static const uint8_t block_sizes_dv100[8] = { |
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78 | 80, 80, 80, 80, 80, 80, 64, 64, |
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79 | }; |
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80 | |||
81 | static const DVprofile dv_profiles[] = { |
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82 | { .dsf = 0, |
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83 | .video_stype = 0x0, |
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84 | .frame_size = 120000, /* IEC 61834, SMPTE-314M - 525/60 (NTSC) */ |
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85 | .difseg_size = 10, |
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86 | .n_difchan = 1, |
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87 | .time_base = { 1001, 30000 }, |
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88 | .ltc_divisor = 30, |
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89 | .height = 480, |
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90 | .width = 720, |
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91 | .sar = {{8, 9}, {32, 27}}, |
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92 | .work_chunks = &work_chunks_dv25ntsc[0], |
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93 | .idct_factor = &dv_idct_factor_sd[0], |
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94 | .pix_fmt = AV_PIX_FMT_YUV411P, |
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95 | .bpm = 6, |
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96 | .block_sizes = block_sizes_dv2550, |
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97 | .audio_stride = 90, |
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98 | .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */ |
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99 | .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */ |
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100 | .audio_shuffle = dv_audio_shuffle525, |
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101 | }, |
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102 | { .dsf = 1, |
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103 | .video_stype = 0x0, |
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104 | .frame_size = 144000, /* IEC 61834 - 625/50 (PAL) */ |
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105 | .difseg_size = 12, |
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106 | .n_difchan = 1, |
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107 | .time_base = { 1, 25 }, |
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108 | .ltc_divisor = 25, |
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109 | .height = 576, |
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110 | .width = 720, |
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111 | .sar = {{16, 15}, {64, 45}}, |
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112 | .work_chunks = &work_chunks_dv25pal[0], |
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113 | .idct_factor = &dv_idct_factor_sd[0], |
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114 | .pix_fmt = AV_PIX_FMT_YUV420P, |
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115 | .bpm = 6, |
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116 | .block_sizes = block_sizes_dv2550, |
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117 | .audio_stride = 108, |
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118 | .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */ |
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119 | .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 }, |
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120 | .audio_shuffle = dv_audio_shuffle625, |
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121 | }, |
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122 | { .dsf = 1, |
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123 | .video_stype = 0x0, |
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124 | .frame_size = 144000, /* SMPTE-314M - 625/50 (PAL) */ |
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125 | .difseg_size = 12, |
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126 | .n_difchan = 1, |
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127 | .time_base = { 1, 25 }, |
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128 | .ltc_divisor = 25, |
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129 | .height = 576, |
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130 | .width = 720, |
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131 | .sar = {{16, 15}, {64, 45}}, |
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132 | .work_chunks = &work_chunks_dv25pal411[0], |
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133 | .idct_factor = &dv_idct_factor_sd[0], |
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134 | .pix_fmt = AV_PIX_FMT_YUV411P, |
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135 | .bpm = 6, |
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136 | .block_sizes = block_sizes_dv2550, |
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137 | .audio_stride = 108, |
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138 | .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */ |
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139 | .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 }, |
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140 | .audio_shuffle = dv_audio_shuffle625, |
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141 | }, |
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142 | { .dsf = 0, |
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143 | .video_stype = 0x4, |
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144 | .frame_size = 240000, /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */ |
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145 | .difseg_size = 10, /* also known as "DVCPRO50" */ |
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146 | .n_difchan = 2, |
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147 | .time_base = { 1001, 30000 }, |
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148 | .ltc_divisor = 30, |
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149 | .height = 480, |
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150 | .width = 720, |
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151 | .sar = {{8, 9}, {32, 27}}, |
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152 | .work_chunks = &work_chunks_dv50ntsc[0], |
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153 | .idct_factor = &dv_idct_factor_sd[0], |
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154 | .pix_fmt = AV_PIX_FMT_YUV422P, |
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155 | .bpm = 6, |
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156 | .block_sizes = block_sizes_dv2550, |
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157 | .audio_stride = 90, |
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158 | .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */ |
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159 | .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */ |
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160 | .audio_shuffle = dv_audio_shuffle525, |
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161 | }, |
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162 | { .dsf = 1, |
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163 | .video_stype = 0x4, |
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164 | .frame_size = 288000, /* SMPTE-314M - 625/50 (PAL) 50 Mbps */ |
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165 | .difseg_size = 12, /* also known as "DVCPRO50" */ |
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166 | .n_difchan = 2, |
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167 | .time_base = { 1, 25 }, |
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168 | .ltc_divisor = 25, |
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169 | .height = 576, |
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170 | .width = 720, |
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171 | .sar = {{16, 15}, {64, 45}}, |
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172 | .work_chunks = &work_chunks_dv50pal[0], |
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173 | .idct_factor = &dv_idct_factor_sd[0], |
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174 | .pix_fmt = AV_PIX_FMT_YUV422P, |
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175 | .bpm = 6, |
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176 | .block_sizes = block_sizes_dv2550, |
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177 | .audio_stride = 108, |
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178 | .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */ |
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179 | .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 }, |
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180 | .audio_shuffle = dv_audio_shuffle625, |
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181 | }, |
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182 | { .dsf = 0, |
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183 | .video_stype = 0x14, |
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184 | .frame_size = 480000, /* SMPTE-370M - 1080i60 100 Mbps */ |
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185 | .difseg_size = 10, /* also known as "DVCPRO HD" */ |
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186 | .n_difchan = 4, |
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187 | .time_base = { 1001, 30000 }, |
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188 | .ltc_divisor = 30, |
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189 | .height = 1080, |
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190 | .width = 1280, |
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191 | .sar = {{1, 1}, {3, 2}}, |
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192 | .work_chunks = &work_chunks_dv100ntsci[0], |
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193 | .idct_factor = &dv_idct_factor_hd1080[0], |
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194 | .pix_fmt = AV_PIX_FMT_YUV422P, |
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195 | .bpm = 8, |
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196 | .block_sizes = block_sizes_dv100, |
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197 | .audio_stride = 90, |
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198 | .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */ |
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199 | .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */ |
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200 | .audio_shuffle = dv_audio_shuffle525, |
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201 | }, |
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202 | { .dsf = 1, |
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203 | .video_stype = 0x14, |
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204 | .frame_size = 576000, /* SMPTE-370M - 1080i50 100 Mbps */ |
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205 | .difseg_size = 12, /* also known as "DVCPRO HD" */ |
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206 | .n_difchan = 4, |
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207 | .time_base = { 1, 25 }, |
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208 | .ltc_divisor = 25, |
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209 | .height = 1080, |
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210 | .width = 1440, |
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211 | .sar = {{1, 1}, {4, 3}}, |
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212 | .work_chunks = &work_chunks_dv100pali[0], |
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213 | .idct_factor = &dv_idct_factor_hd1080[0], |
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214 | .pix_fmt = AV_PIX_FMT_YUV422P, |
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215 | .bpm = 8, |
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216 | .block_sizes = block_sizes_dv100, |
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217 | .audio_stride = 108, |
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218 | .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */ |
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219 | .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 }, |
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220 | .audio_shuffle = dv_audio_shuffle625, |
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221 | }, |
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222 | { .dsf = 0, |
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223 | .video_stype = 0x18, |
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224 | .frame_size = 240000, /* SMPTE-370M - 720p60 100 Mbps */ |
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225 | .difseg_size = 10, /* also known as "DVCPRO HD" */ |
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226 | .n_difchan = 2, |
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227 | .time_base = { 1001, 60000 }, |
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228 | .ltc_divisor = 60, |
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229 | .height = 720, |
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230 | .width = 960, |
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231 | .sar = {{1, 1}, {4, 3}}, |
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232 | .work_chunks = &work_chunks_dv100ntscp[0], |
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233 | .idct_factor = &dv_idct_factor_hd720[0], |
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234 | .pix_fmt = AV_PIX_FMT_YUV422P, |
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235 | .bpm = 8, |
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236 | .block_sizes = block_sizes_dv100, |
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237 | .audio_stride = 90, |
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238 | .audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */ |
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239 | .audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */ |
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240 | .audio_shuffle = dv_audio_shuffle525, |
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241 | }, |
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242 | { .dsf = 1, |
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243 | .video_stype = 0x18, |
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244 | .frame_size = 288000, /* SMPTE-370M - 720p50 100 Mbps */ |
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245 | .difseg_size = 12, /* also known as "DVCPRO HD" */ |
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246 | .n_difchan = 2, |
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247 | .time_base = { 1, 50 }, |
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248 | .ltc_divisor = 50, |
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249 | .height = 720, |
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250 | .width = 960, |
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251 | .sar = {{1, 1}, {4, 3}}, |
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252 | .work_chunks = &work_chunks_dv100palp[0], |
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253 | .idct_factor = &dv_idct_factor_hd720[0], |
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254 | .pix_fmt = AV_PIX_FMT_YUV422P, |
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255 | .bpm = 8, |
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256 | .block_sizes = block_sizes_dv100, |
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257 | .audio_stride = 90, |
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258 | .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */ |
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259 | .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 }, |
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260 | .audio_shuffle = dv_audio_shuffle625, |
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261 | }, |
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262 | { .dsf = 1, |
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263 | .video_stype = 0x1, |
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264 | .frame_size = 144000, /* IEC 61883-5 - 625/50 (PAL) */ |
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265 | .difseg_size = 12, |
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266 | .n_difchan = 1, |
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267 | .time_base = { 1, 25 }, |
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268 | .ltc_divisor = 25, |
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269 | .height = 576, |
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270 | .width = 720, |
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271 | .sar = {{16, 15}, {64, 45}}, |
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272 | .work_chunks = &work_chunks_dv25pal[0], |
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273 | .idct_factor = &dv_idct_factor_sd[0], |
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274 | .pix_fmt = AV_PIX_FMT_YUV420P, |
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275 | .bpm = 6, |
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276 | .block_sizes = block_sizes_dv2550, |
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277 | .audio_stride = 108, |
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278 | .audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */ |
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279 | .audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 }, |
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280 | .audio_shuffle = dv_audio_shuffle625, |
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281 | } |
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282 | }; |
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283 | |||
284 | const DVprofile* avpriv_dv_frame_profile2(AVCodecContext* codec, const DVprofile *sys, |
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285 | const uint8_t* frame, unsigned buf_size) |
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286 | { |
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287 | int i, dsf, stype; |
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288 | |||
289 | if(buf_size < DV_PROFILE_BYTES) |
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290 | return NULL; |
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291 | |||
292 | dsf = (frame[3] & 0x80) >> 7; |
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293 | stype = frame[80 * 5 + 48 + 3] & 0x1f; |
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294 | |||
295 | /* 576i50 25Mbps 4:1:1 is a special case */ |
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296 | if ((dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) || |
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297 | (stype == 31 && codec && codec->codec_tag==AV_RL32("SL25") && codec->coded_width==720 && codec->coded_height==576)) { |
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298 | return &dv_profiles[2]; |
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299 | } |
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300 | |||
301 | if( stype == 0 |
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302 | && codec |
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303 | && (codec->codec_tag==AV_RL32("dvsd") || codec->codec_tag==AV_RL32("CDVC")) |
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304 | && codec->coded_width ==720 |
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305 | && codec->coded_height==576) |
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306 | return &dv_profiles[1]; |
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307 | |||
308 | for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) |
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309 | if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype) |
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310 | return &dv_profiles[i]; |
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311 | |||
312 | /* check if old sys matches and assumes corrupted input */ |
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313 | if (sys && buf_size == sys->frame_size) |
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314 | return sys; |
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315 | |||
316 | /* hack for trac issue #217, dv files created with QuickTime 3 */ |
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317 | if ((frame[3] & 0x7f) == 0x3f && frame[80 * 5 + 48 + 3] == 0xff) |
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318 | return &dv_profiles[dsf]; |
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319 | |||
320 | return NULL; |
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321 | } |
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322 | |||
323 | const DVprofile* avpriv_dv_frame_profile(const DVprofile *sys, |
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324 | const uint8_t* frame, unsigned buf_size) |
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325 | { |
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326 | return avpriv_dv_frame_profile2(NULL, sys, frame, buf_size); |
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327 | } |
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328 | |||
329 | const DVprofile* avpriv_dv_codec_profile(AVCodecContext* codec) |
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330 | { |
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331 | int i; |
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332 | int w, h; |
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333 | |||
334 | if (codec->coded_width || codec->coded_height) { |
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335 | w = codec->coded_width; |
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336 | h = codec->coded_height; |
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337 | } else { |
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338 | w = codec->width; |
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339 | h = codec->height; |
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340 | } |
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341 | |||
342 | for (i=0; i |
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343 | if (h == dv_profiles[i].height && |
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344 | codec->pix_fmt == dv_profiles[i].pix_fmt && |
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345 | w == dv_profiles[i].width) |
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346 | return &dv_profiles[i]; |
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347 | |||
348 | return NULL; |
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349 | } |
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350 | |||
351 | void ff_dv_print_profiles(void *logctx, int loglevel) |
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352 | { |
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353 | int i; |
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354 | for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) { |
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355 | const DVprofile *p = &dv_profiles[i]; |
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356 | av_log(logctx, loglevel, "Frame size: %dx%d; pixel format: %s, " |
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357 | "framerate: %d/%d\n", p->width, p->height, av_get_pix_fmt_name(p->pix_fmt), |
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358 | p->time_base.den, p->time_base.num); |
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359 | } |
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360 | }>>> |