mirror of
https://git.ffmpeg.org/ffmpeg.git
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160 lines
6.0 KiB
C
160 lines
6.0 KiB
C
/*
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* nut
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* Copyright (c) 2004-2007 Michael Niedermayer
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/mathematics.h"
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#include "libavutil/tree.h"
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#include "nut.h"
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#include "internal.h"
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const AVCodecTag ff_nut_subtitle_tags[] = {
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{ CODEC_ID_TEXT , MKTAG('U', 'T', 'F', '8') },
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{ CODEC_ID_SSA , MKTAG('S', 'S', 'A', 0 ) },
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{ CODEC_ID_DVD_SUBTITLE, MKTAG('D', 'V', 'D', 'S') },
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{ CODEC_ID_DVB_SUBTITLE, MKTAG('D', 'V', 'B', 'S') },
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{ CODEC_ID_NONE , 0 }
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};
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const AVCodecTag ff_nut_video_tags[] = {
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{ CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 15 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 15 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 16 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 16 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG(15 , 'B', 'G', 'R') },
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{ CODEC_ID_RAWVIDEO, MKTAG(15 , 'R', 'G', 'B') },
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{ CODEC_ID_RAWVIDEO, MKTAG(16 , 'B', 'G', 'R') },
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{ CODEC_ID_RAWVIDEO, MKTAG(16 , 'R', 'G', 'B') },
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{ CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 12 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 12 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG(12 , 'B', 'G', 'R') },
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{ CODEC_ID_RAWVIDEO, MKTAG(12 , 'R', 'G', 'B') },
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{ CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
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{ CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
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{ CODEC_ID_RAWVIDEO, MKTAG('A', 'R', 'G', 'B') },
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{ CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 24 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 24 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG('4', '1', '1', 'P') },
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{ CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') },
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{ CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') },
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{ CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') },
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{ CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') },
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{ CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') },
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{ CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', '1', 'W', '0') },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', '0', 'W', '1') },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 8 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 8 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 4 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 4 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', '4', 'B', 'Y') },
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{ CODEC_ID_RAWVIDEO, MKTAG('R', '4', 'B', 'Y') },
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{ CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 48 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 48 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG(48 , 'B', 'G', 'R') },
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{ CODEC_ID_RAWVIDEO, MKTAG(48 , 'R', 'G', 'B') },
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '1', 0 , 16 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG(16 , 0 , '1', 'Y') },
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 16 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG(16 , 11 , '3', 'Y') },
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 16 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG(16 , 10 , '3', 'Y') },
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 0 , 16 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG(16 , 0 , '3', 'Y') },
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11 , 8 ) },
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '2', 0 , 8 ) },
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{ CODEC_ID_NONE , 0 }
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};
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void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val){
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int i;
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for(i=0; i<nut->avf->nb_streams; i++){
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nut->stream[i].last_pts= av_rescale_rnd(
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val,
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time_base.num * (int64_t)nut->stream[i].time_base->den,
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time_base.den * (int64_t)nut->stream[i].time_base->num,
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AV_ROUND_DOWN);
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}
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}
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int64_t ff_lsb2full(StreamContext *stream, int64_t lsb){
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int64_t mask = (1<<stream->msb_pts_shift)-1;
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int64_t delta= stream->last_pts - mask/2;
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return ((lsb - delta)&mask) + delta;
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}
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int ff_nut_sp_pos_cmp(const Syncpoint *a, const Syncpoint *b){
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return ((a->pos - b->pos) >> 32) - ((b->pos - a->pos) >> 32);
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}
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int ff_nut_sp_pts_cmp(const Syncpoint *a, const Syncpoint *b){
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return ((a->ts - b->ts) >> 32) - ((b->ts - a->ts) >> 32);
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}
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void ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts){
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Syncpoint *sp= av_mallocz(sizeof(Syncpoint));
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struct AVTreeNode *node= av_mallocz(av_tree_node_size);
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sp->pos= pos;
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sp->back_ptr= back_ptr;
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sp->ts= ts;
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av_tree_insert(&nut->syncpoints, sp, (void *) ff_nut_sp_pos_cmp, &node);
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if(node){
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av_free(sp);
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av_free(node);
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}
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}
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static int enu_free(void *opaque, void *elem)
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{
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av_free(elem);
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return 0;
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}
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void ff_nut_free_sp(NUTContext *nut)
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{
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av_tree_enumerate(nut->syncpoints, NULL, NULL, enu_free);
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av_tree_destroy(nut->syncpoints);
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}
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const Dispositions ff_nut_dispositions[] = {
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{"default" , AV_DISPOSITION_DEFAULT},
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{"dub" , AV_DISPOSITION_DUB},
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{"original" , AV_DISPOSITION_ORIGINAL},
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{"comment" , AV_DISPOSITION_COMMENT},
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{"lyrics" , AV_DISPOSITION_LYRICS},
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{"karaoke" , AV_DISPOSITION_KARAOKE},
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{"" , 0}
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};
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const AVMetadataConv ff_nut_metadata_conv[] = {
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{ "Author", "artist" },
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{ "X-CreationTime", "date" },
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{ "CreationTime", "date" },
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{ "SourceFilename", "filename" },
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{ "X-Language", "language" },
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{ "X-Disposition", "disposition" },
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{ "X-Replaces", "replaces" },
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{ "X-Depends", "depends" },
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{ "X-Uses", "uses" },
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{ "X-UsesFont", "usesfont" },
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{ 0 },
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};
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