00001 /* 00002 * nut 00003 * Copyright (c) 2004-2007 Michael Niedermayer 00004 * 00005 * This file is part of FFmpeg. 00006 * 00007 * FFmpeg 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 * FFmpeg 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 FFmpeg; 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/mathematics.h" 00023 #include "libavutil/tree.h" 00024 #include "nut.h" 00025 #include "internal.h" 00026 00027 const AVCodecTag ff_nut_subtitle_tags[] = { 00028 { CODEC_ID_TEXT , MKTAG('U', 'T', 'F', '8') }, 00029 { CODEC_ID_SSA , MKTAG('S', 'S', 'A', 0 ) }, 00030 { CODEC_ID_DVD_SUBTITLE, MKTAG('D', 'V', 'D', 'S') }, 00031 { CODEC_ID_DVB_SUBTITLE, MKTAG('D', 'V', 'B', 'S') }, 00032 { CODEC_ID_NONE , 0 } 00033 }; 00034 00035 const AVCodecTag ff_nut_video_tags[] = { 00036 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 15 ) }, 00037 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 15 ) }, 00038 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 16 ) }, 00039 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 16 ) }, 00040 { CODEC_ID_RAWVIDEO, MKTAG(15 , 'B', 'G', 'R') }, 00041 { CODEC_ID_RAWVIDEO, MKTAG(15 , 'R', 'G', 'B') }, 00042 { CODEC_ID_RAWVIDEO, MKTAG(16 , 'B', 'G', 'R') }, 00043 { CODEC_ID_RAWVIDEO, MKTAG(16 , 'R', 'G', 'B') }, 00044 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 12 ) }, 00045 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 12 ) }, 00046 { CODEC_ID_RAWVIDEO, MKTAG(12 , 'B', 'G', 'R') }, 00047 { CODEC_ID_RAWVIDEO, MKTAG(12 , 'R', 'G', 'B') }, 00048 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') }, 00049 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') }, 00050 { CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') }, 00051 { CODEC_ID_RAWVIDEO, MKTAG('A', 'R', 'G', 'B') }, 00052 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 24 ) }, 00053 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 24 ) }, 00054 { CODEC_ID_RAWVIDEO, MKTAG('4', '1', '1', 'P') }, 00055 { CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') }, 00056 { CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') }, 00057 { CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') }, 00058 { CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') }, 00059 { CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') }, 00060 { CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') }, 00061 { CODEC_ID_RAWVIDEO, MKTAG('B', '1', 'W', '0') }, 00062 { CODEC_ID_RAWVIDEO, MKTAG('B', '0', 'W', '1') }, 00063 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 8 ) }, 00064 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 8 ) }, 00065 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 4 ) }, 00066 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 4 ) }, 00067 { CODEC_ID_RAWVIDEO, MKTAG('B', '4', 'B', 'Y') }, 00068 { CODEC_ID_RAWVIDEO, MKTAG('R', '4', 'B', 'Y') }, 00069 { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 48 ) }, 00070 { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 48 ) }, 00071 { CODEC_ID_RAWVIDEO, MKTAG(48 , 'B', 'G', 'R') }, 00072 { CODEC_ID_RAWVIDEO, MKTAG(48 , 'R', 'G', 'B') }, 00073 { CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 10 ) }, 00074 { CODEC_ID_RAWVIDEO, MKTAG(10 , 11 , '3', 'Y') }, 00075 { CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 10 ) }, 00076 { CODEC_ID_RAWVIDEO, MKTAG(10 , 10 , '3', 'Y') }, 00077 { CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 10 ) }, 00078 { CODEC_ID_RAWVIDEO, MKTAG(10 , 0 , '3', 'Y') }, 00079 { CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0 , 16 ) }, 00080 { CODEC_ID_RAWVIDEO, MKTAG(16 , 0 , '1', 'Y') }, 00081 { CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 16 ) }, 00082 { CODEC_ID_RAWVIDEO, MKTAG(16 , 11 , '3', 'Y') }, 00083 { CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 16 ) }, 00084 { CODEC_ID_RAWVIDEO, MKTAG(16 , 10 , '3', 'Y') }, 00085 { CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 16 ) }, 00086 { CODEC_ID_RAWVIDEO, MKTAG(16 , 0 , '3', 'Y') }, 00087 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11 , 8 ) }, 00088 { CODEC_ID_RAWVIDEO, MKTAG('Y', '2', 0 , 8 ) }, 00089 { CODEC_ID_NONE , 0 } 00090 }; 00091 00092 void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val){ 00093 int i; 00094 for(i=0; i<nut->avf->nb_streams; i++){ 00095 nut->stream[i].last_pts= av_rescale_rnd( 00096 val, 00097 time_base.num * (int64_t)nut->stream[i].time_base->den, 00098 time_base.den * (int64_t)nut->stream[i].time_base->num, 00099 AV_ROUND_DOWN); 00100 } 00101 } 00102 00103 int64_t ff_lsb2full(StreamContext *stream, int64_t lsb){ 00104 int64_t mask = (1<<stream->msb_pts_shift)-1; 00105 int64_t delta= stream->last_pts - mask/2; 00106 return ((lsb - delta)&mask) + delta; 00107 } 00108 00109 int ff_nut_sp_pos_cmp(const Syncpoint *a, const Syncpoint *b){ 00110 return ((a->pos - b->pos) >> 32) - ((b->pos - a->pos) >> 32); 00111 } 00112 00113 int ff_nut_sp_pts_cmp(const Syncpoint *a, const Syncpoint *b){ 00114 return ((a->ts - b->ts) >> 32) - ((b->ts - a->ts) >> 32); 00115 } 00116 00117 void ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts){ 00118 Syncpoint *sp= av_mallocz(sizeof(Syncpoint)); 00119 struct AVTreeNode *node= av_mallocz(av_tree_node_size); 00120 00121 sp->pos= pos; 00122 sp->back_ptr= back_ptr; 00123 sp->ts= ts; 00124 av_tree_insert(&nut->syncpoints, sp, (void *) ff_nut_sp_pos_cmp, &node); 00125 if(node){ 00126 av_free(sp); 00127 av_free(node); 00128 } 00129 } 00130 00131 static int enu_free(void *opaque, void *elem) 00132 { 00133 av_free(elem); 00134 return 0; 00135 } 00136 00137 void ff_nut_free_sp(NUTContext *nut) 00138 { 00139 av_tree_enumerate(nut->syncpoints, NULL, NULL, enu_free); 00140 av_tree_destroy(nut->syncpoints); 00141 } 00142 00143 const Dispositions ff_nut_dispositions[] = { 00144 {"default" , AV_DISPOSITION_DEFAULT}, 00145 {"dub" , AV_DISPOSITION_DUB}, 00146 {"original" , AV_DISPOSITION_ORIGINAL}, 00147 {"comment" , AV_DISPOSITION_COMMENT}, 00148 {"lyrics" , AV_DISPOSITION_LYRICS}, 00149 {"karaoke" , AV_DISPOSITION_KARAOKE}, 00150 {"" , 0} 00151 }; 00152 00153 const AVMetadataConv ff_nut_metadata_conv[] = { 00154 { "Author", "artist" }, 00155 { "X-CreationTime", "date" }, 00156 { "CreationTime", "date" }, 00157 { "SourceFilename", "filename" }, 00158 { "X-Language", "language" }, 00159 { "X-Disposition", "disposition" }, 00160 { "X-Replaces", "replaces" }, 00161 { "X-Depends", "depends" }, 00162 { "X-Uses", "uses" }, 00163 { "X-UsesFont", "usesfont" }, 00164 { 0 }, 00165 };