Libav 0.7.1
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00001 /* 00002 * nut 00003 * Copyright (c) 2004-2007 Michael Niedermayer 00004 * 00005 * This file is part of Libav. 00006 * 00007 * Libav is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * Libav is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with Libav; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00022 #include "libavutil/tree.h" 00023 #include "nut.h" 00024 #include "internal.h" 00025 00026 const AVCodecTag ff_nut_subtitle_tags[] = { 00027 { CODEC_ID_TEXT , MKTAG('U', 'T', 'F', '8') }, 00028 { CODEC_ID_SSA , MKTAG('S', 'S', 'A', 0 ) }, 00029 { CODEC_ID_DVD_SUBTITLE, MKTAG('D', 'V', 'D', 'S') }, 00030 { CODEC_ID_DVB_SUBTITLE, MKTAG('D', 'V', 'B', 'S') }, 00031 { CODEC_ID_NONE , 0 } 00032 }; 00033 00034 const AVCodecTag ff_nut_video_tags[] = { 00035 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 15 ) }, 00036 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 15 ) }, 00037 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 16 ) }, 00038 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 16 ) }, 00039 { CODEC_ID_RAWVIDEO, MKTAG(15 , 'B', 'G', 'R') }, 00040 { CODEC_ID_RAWVIDEO, MKTAG(15 , 'R', 'G', 'B') }, 00041 { CODEC_ID_RAWVIDEO, MKTAG(16 , 'B', 'G', 'R') }, 00042 { CODEC_ID_RAWVIDEO, MKTAG(16 , 'R', 'G', 'B') }, 00043 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 12 ) }, 00044 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 12 ) }, 00045 { CODEC_ID_RAWVIDEO, MKTAG(12 , 'B', 'G', 'R') }, 00046 { CODEC_ID_RAWVIDEO, MKTAG(12 , 'R', 'G', 'B') }, 00047 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') }, 00048 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') }, 00049 { CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') }, 00050 { CODEC_ID_RAWVIDEO, MKTAG('A', 'R', 'G', 'B') }, 00051 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 24 ) }, 00052 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 24 ) }, 00053 { CODEC_ID_RAWVIDEO, MKTAG('4', '1', '1', 'P') }, 00054 { CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') }, 00055 { CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') }, 00056 { CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') }, 00057 { CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') }, 00058 { CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') }, 00059 { CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') }, 00060 { CODEC_ID_RAWVIDEO, MKTAG('B', '1', 'W', '0') }, 00061 { CODEC_ID_RAWVIDEO, MKTAG('B', '0', 'W', '1') }, 00062 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 8 ) }, 00063 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 8 ) }, 00064 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 4 ) }, 00065 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 4 ) }, 00066 { CODEC_ID_RAWVIDEO, MKTAG('B', '4', 'B', 'Y') }, 00067 { CODEC_ID_RAWVIDEO, MKTAG('R', '4', 'B', 'Y') }, 00068 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 48 ) }, 00069 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 48 ) }, 00070 { CODEC_ID_RAWVIDEO, MKTAG(48 , 'B', 'G', 'R') }, 00071 { CODEC_ID_RAWVIDEO, MKTAG(48 , 'R', 'G', 'B') }, 00072 { CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0 , 16 ) }, 00073 { CODEC_ID_RAWVIDEO, MKTAG(16 , 0 , '1', 'Y') }, 00074 { CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 16 ) }, 00075 { CODEC_ID_RAWVIDEO, MKTAG(16 , 11 , '3', 'Y') }, 00076 { CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 16 ) }, 00077 { CODEC_ID_RAWVIDEO, MKTAG(16 , 10 , '3', 'Y') }, 00078 { CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 16 ) }, 00079 { CODEC_ID_RAWVIDEO, MKTAG(16 , 0 , '3', 'Y') }, 00080 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11 , 8 ) }, 00081 { CODEC_ID_RAWVIDEO, MKTAG('Y', '2', 0 , 8 ) }, 00082 { CODEC_ID_NONE , 0 } 00083 }; 00084 00085 void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val){ 00086 int i; 00087 for(i=0; i<nut->avf->nb_streams; i++){ 00088 nut->stream[i].last_pts= av_rescale_rnd( 00089 val, 00090 time_base.num * (int64_t)nut->stream[i].time_base->den, 00091 time_base.den * (int64_t)nut->stream[i].time_base->num, 00092 AV_ROUND_DOWN); 00093 } 00094 } 00095 00096 int64_t ff_lsb2full(StreamContext *stream, int64_t lsb){ 00097 int64_t mask = (1<<stream->msb_pts_shift)-1; 00098 int64_t delta= stream->last_pts - mask/2; 00099 return ((lsb - delta)&mask) + delta; 00100 } 00101 00102 int ff_nut_sp_pos_cmp(const Syncpoint *a, const Syncpoint *b){ 00103 return ((a->pos - b->pos) >> 32) - ((b->pos - a->pos) >> 32); 00104 } 00105 00106 int ff_nut_sp_pts_cmp(const Syncpoint *a, const Syncpoint *b){ 00107 return ((a->ts - b->ts) >> 32) - ((b->ts - a->ts) >> 32); 00108 } 00109 00110 void ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts){ 00111 Syncpoint *sp= av_mallocz(sizeof(Syncpoint)); 00112 struct AVTreeNode *node= av_mallocz(av_tree_node_size); 00113 00114 sp->pos= pos; 00115 sp->back_ptr= back_ptr; 00116 sp->ts= ts; 00117 av_tree_insert(&nut->syncpoints, sp, (void *) ff_nut_sp_pos_cmp, &node); 00118 if(node){ 00119 av_free(sp); 00120 av_free(node); 00121 } 00122 } 00123 00124 static int enu_free(void *opaque, void *elem) 00125 { 00126 av_free(elem); 00127 return 0; 00128 } 00129 00130 void ff_nut_free_sp(NUTContext *nut) 00131 { 00132 av_tree_enumerate(nut->syncpoints, NULL, NULL, enu_free); 00133 av_tree_destroy(nut->syncpoints); 00134 } 00135 00136 const Dispositions ff_nut_dispositions[] = { 00137 {"default" , AV_DISPOSITION_DEFAULT}, 00138 {"dub" , AV_DISPOSITION_DUB}, 00139 {"original" , AV_DISPOSITION_ORIGINAL}, 00140 {"comment" , AV_DISPOSITION_COMMENT}, 00141 {"lyrics" , AV_DISPOSITION_LYRICS}, 00142 {"karaoke" , AV_DISPOSITION_KARAOKE}, 00143 {"" , 0} 00144 }; 00145 00146 const AVMetadataConv ff_nut_metadata_conv[] = { 00147 { "Author", "artist" }, 00148 { "X-CreationTime", "date" }, 00149 { "CreationTime", "date" }, 00150 { "SourceFilename", "filename" }, 00151 { "X-Language", "language" }, 00152 { "X-Disposition", "disposition" }, 00153 { "X-Replaces", "replaces" }, 00154 { "X-Depends", "depends" }, 00155 { "X-Uses", "uses" }, 00156 { "X-UsesFont", "usesfont" }, 00157 { 0 }, 00158 };