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1 /* |
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2 * Hedgewars, a free turn based strategy game |
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3 * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com> |
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4 * |
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5 * This program is free software; you can redistribute it and/or modify |
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6 * it under the terms of the GNU General Public License as published by |
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7 * the Free Software Foundation; version 2 of the License |
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8 * |
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9 * This program 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 |
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12 * GNU 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 General Public License |
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15 * along with this program; if not, write to the Free Software |
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16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
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17 */ |
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18 |
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19 #define __STDC_CONSTANT_MACROS |
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20 extern "C" |
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21 { |
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22 #include "libavformat/avformat.h" |
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23 } |
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24 #include <QVector> |
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25 #include <QList> |
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26 #include <QMessageBox> |
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27 |
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28 #include "libav_iteraction.h" |
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29 #include "HWApplication.h" |
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30 |
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31 struct Codec |
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32 { |
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33 CodecID id; |
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34 bool isAudio; |
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35 QString shortName; // used for identification |
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36 QString longName; // used for displaying to user |
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37 bool isRecomended; |
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38 }; |
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39 |
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40 struct Format |
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41 { |
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42 QString shortName; |
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43 QString longName; |
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44 bool isRecomended; |
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45 // QString extension; |
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46 QVector<Codec*> codecs; |
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47 }; |
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48 |
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49 QList<Codec> codecs; |
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50 QMap<QString,Format> formats; |
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51 |
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52 LibavIteraction & LibavIteraction::instance() |
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53 { |
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54 static LibavIteraction instance; |
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55 return instance; |
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56 } |
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57 |
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58 bool FormatQueryCodec(AVOutputFormat *ofmt, enum CodecID codec_id) |
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59 { |
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60 #if LIBAVFORMAT_VERSION_MAJOR >= 54 |
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61 return avformat_query_codec(ofmt, codec_id, FF_COMPLIANCE_NORMAL) == 1; |
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62 #else |
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63 if (ofmt->codec_tag) |
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64 return !!av_codec_get_tag(ofmt->codec_tag, codec_id); |
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65 return codec_id == ofmt->video_codec || codec_id == ofmt->audio_codec; |
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66 #endif |
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67 } |
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68 |
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69 LibavIteraction::LibavIteraction() |
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70 { |
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71 // initialize libav and register all codecs and formats |
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72 av_register_all(); |
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73 |
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74 // get list of all codecs |
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75 AVCodec* pCodec = NULL; |
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76 while (pCodec = av_codec_next(pCodec)) |
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77 { |
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78 #if LIBAVCODEC_VERSION_MAJOR >= 54 |
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79 if (!av_codec_is_encoder(pCodec)) |
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80 #else |
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81 if (!pCodec->encode) |
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82 #endif |
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83 continue; |
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84 |
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85 if (pCodec->capabilities & CODEC_CAP_EXPERIMENTAL) |
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86 continue; |
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87 |
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88 if (pCodec->type != AVMEDIA_TYPE_VIDEO && pCodec->type != AVMEDIA_TYPE_AUDIO) |
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89 continue; |
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90 |
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91 // this encoders seems to be buggy |
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92 if (strcmp(pCodec->name, "rv10") == 0 || |
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93 strcmp(pCodec->name, "rv20") == 0) |
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94 continue; |
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95 |
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96 // doesn't support stereo sound |
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97 if (strcmp(pCodec->name, "real_144") == 0) |
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98 continue; |
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99 #if LIBAVCODEC_VERSION_MAJOR < 54 |
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100 // FIXME: theese doesn't work for some reason |
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101 if (strcmp(pCodec->name, "libx264") == 0) |
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102 continue; |
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103 if (strcmp(pCodec->name, "libxvid") == 0) |
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104 continue; |
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105 #endif |
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106 |
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107 if (pCodec->type == AVMEDIA_TYPE_VIDEO) |
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108 { |
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109 if (pCodec->supported_framerates != NULL) |
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110 continue; |
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111 |
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112 // check if codec supports yuv 4:2:0 format |
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113 if (!pCodec->pix_fmts) |
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114 continue; |
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115 bool yuv420Supported = false; |
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116 for (const PixelFormat* pfmt = pCodec->pix_fmts; *pfmt != -1; pfmt++) |
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117 if (*pfmt == PIX_FMT_YUV420P) |
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118 { |
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119 yuv420Supported = true; |
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120 break; |
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121 } |
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122 if (!yuv420Supported) |
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123 continue; |
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124 } |
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125 if (pCodec->type == AVMEDIA_TYPE_AUDIO) |
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126 { |
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127 // check if codec supports signed 16-bit format |
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128 if (!pCodec->sample_fmts) |
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129 continue; |
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130 bool s16Supported = false; |
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131 for (const AVSampleFormat* pfmt = pCodec->sample_fmts; *pfmt != -1; pfmt++) |
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132 if (*pfmt == AV_SAMPLE_FMT_S16/* || *pfmt == AV_SAMPLE_FMT_FLT*/) |
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133 { |
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134 s16Supported = true; |
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135 break; |
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136 } |
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137 if (!s16Supported) |
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138 continue; |
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139 } |
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140 // add codec to list of codecs |
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141 codecs.push_back(Codec()); |
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142 Codec & codec = codecs.back(); |
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143 codec.id = pCodec->id; |
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144 codec.isAudio = pCodec->type == AVMEDIA_TYPE_AUDIO; |
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145 codec.shortName = pCodec->name; |
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146 codec.longName = pCodec->long_name; |
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147 |
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148 codec.isRecomended = false; |
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149 if (strcmp(pCodec->name, "libx264") == 0) |
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150 { |
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151 codec.longName = "H.264/MPEG-4 Part 10 AVC (x264)"; |
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152 codec.isRecomended = true; |
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153 } |
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154 else if (strcmp(pCodec->name, "libxvid") == 0) |
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155 { |
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156 codec.longName = "MPEG-4 Part 2 (Xvid)"; |
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157 codec.isRecomended = true; |
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158 } |
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159 else if (strcmp(pCodec->name, "libmp3lame") == 0) |
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160 { |
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161 codec.longName = "MP3 (MPEG audio layer 3) (LAME)"; |
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162 codec.isRecomended = true; |
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163 } |
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164 else |
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165 codec.longName = pCodec->long_name; |
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166 |
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167 if (strcmp(pCodec->name, "mpeg4") == 0 || strcmp(pCodec->name, "ac3_fixed") == 0) |
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168 codec.isRecomended = true; |
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169 |
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170 // FIXME: remove next line |
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171 codec.longName += QString(" (%1)").arg(codec.shortName); |
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172 } |
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173 |
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174 // get list of all formats |
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175 AVOutputFormat* pFormat = NULL; |
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176 while (pFormat = av_oformat_next(pFormat)) |
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177 { |
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178 if (!pFormat->extensions) |
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179 continue; |
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180 |
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181 // skip some strange formats to not confuse users |
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182 if (strstr(pFormat->long_name, "raw")) |
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183 continue; |
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184 |
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185 Format format; |
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186 bool hasVideoCodec = false; |
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187 for (QList<Codec>::iterator codec = codecs.begin(); codec != codecs.end(); ++codec) |
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188 { |
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189 if (!FormatQueryCodec(pFormat, codec->id)) |
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190 continue; |
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191 format.codecs.push_back(&*codec); |
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192 if (!codec->isAudio) |
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193 hasVideoCodec = true; |
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194 } |
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195 if (!hasVideoCodec) |
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196 continue; |
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197 format.shortName = pFormat->name; |
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198 |
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199 QString ext(pFormat->extensions); |
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200 ext.truncate(strcspn(pFormat->extensions, ",")); |
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201 format.longName = QString("%1 (*.%2)").arg(pFormat->long_name).arg(ext); |
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202 |
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203 // FIXME: remove next line |
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204 format.longName += QString(" (%1)").arg(format.shortName); |
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205 |
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206 format.isRecomended = strcmp(pFormat->name, "mp4") == 0 || strcmp(pFormat->name, "avi") == 0; |
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207 |
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208 formats[pFormat->name] = format; |
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209 } |
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210 } |
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211 |
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212 void LibavIteraction::FillFormats(QComboBox * pFormats) |
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213 { |
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214 // first insert recomended formats |
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215 foreach(const Format & format, formats) |
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216 if (format.isRecomended) |
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217 pFormats->addItem(format.longName, format.shortName); |
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218 |
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219 // remember where to place separator between recomended and other formats |
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220 int sep = pFormats->count(); |
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221 |
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222 // insert remaining formats |
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223 foreach(const Format & format, formats) |
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224 if (!format.isRecomended) |
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225 pFormats->addItem(format.longName, format.shortName); |
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226 |
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227 // insert separator if necessary |
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228 if (sep != 0 && sep != pFormats->count()) |
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229 pFormats->insertSeparator(sep); |
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230 } |
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231 |
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232 void LibavIteraction::FillCodecs(const QVariant & fmt, QComboBox * pVCodecs, QComboBox * pACodecs) |
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233 { |
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234 Format & format = formats[fmt.toString()]; |
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235 |
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236 // first insert recomended codecs |
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237 foreach(Codec * codec, format.codecs) |
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238 { |
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239 if (codec->isRecomended) |
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240 { |
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241 if (codec->isAudio) |
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242 pACodecs->addItem(codec->longName, codec->shortName); |
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243 else |
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244 pVCodecs->addItem(codec->longName, codec->shortName); |
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245 } |
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246 } |
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247 |
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248 // remember where to place separators between recomended and other codecs |
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249 int vsep = pVCodecs->count(); |
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250 int asep = pACodecs->count(); |
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251 |
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252 // insert remaining codecs |
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253 foreach(Codec * codec, format.codecs) |
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254 { |
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255 if (!codec->isRecomended) |
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256 { |
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257 if (codec->isAudio) |
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258 pACodecs->addItem(codec->longName, codec->shortName); |
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259 else |
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260 pVCodecs->addItem(codec->longName, codec->shortName); |
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261 } |
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262 } |
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263 |
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264 // insert separators if necessary |
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265 if (vsep != 0 && vsep != pVCodecs->count()) |
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266 pVCodecs->insertSeparator(vsep); |
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267 if (asep != 0 && asep != pACodecs->count()) |
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268 pACodecs->insertSeparator(asep); |
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269 } |