diff options
| author | Tim Redfern <tim@eclectronics.org> | 2014-02-17 13:36:38 +0000 |
|---|---|---|
| committer | Tim Redfern <tim@eclectronics.org> | 2014-02-17 13:36:38 +0000 |
| commit | 22e28216336da876e1fd17f380ce42eaf1446769 (patch) | |
| tree | 444dad3dc7e2656992d29f34f7bce31970c122a5 /ffmpeg/libavformat/assdec.c | |
| parent | ae5e8541f6e06e64c28719467cdf366ac57aff31 (diff) | |
chasing indexing error
Diffstat (limited to 'ffmpeg/libavformat/assdec.c')
| -rw-r--r-- | ffmpeg/libavformat/assdec.c | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/ffmpeg/libavformat/assdec.c b/ffmpeg/libavformat/assdec.c deleted file mode 100644 index c9bd63b..0000000 --- a/ffmpeg/libavformat/assdec.c +++ /dev/null @@ -1,171 +0,0 @@ -/* - * SSA/ASS demuxer - * Copyright (c) 2008 Michael Niedermayer - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <stdint.h> - -#include "avformat.h" -#include "internal.h" -#include "subtitles.h" -#include "libavcodec/internal.h" -#include "libavutil/bprint.h" - -typedef struct ASSContext{ - FFDemuxSubtitlesQueue q; -}ASSContext; - -static int ass_probe(AVProbeData *p) -{ - const char *header= "[Script Info]"; - - if( !memcmp(p->buf , header, strlen(header)) - || !memcmp(p->buf+3, header, strlen(header))) - return AVPROBE_SCORE_MAX; - - return 0; -} - -static int ass_read_close(AVFormatContext *s) -{ - ASSContext *ass = s->priv_data; - ff_subtitles_queue_clean(&ass->q); - return 0; -} - -static int read_ts(const uint8_t *p, int64_t *start, int *duration) -{ - int64_t end; - int hh1, mm1, ss1, ms1; - int hh2, mm2, ss2, ms2; - - if (sscanf(p, "%*[^,],%d:%d:%d%*c%d,%d:%d:%d%*c%d", - &hh1, &mm1, &ss1, &ms1, - &hh2, &mm2, &ss2, &ms2) == 8) { - end = (hh2*3600LL + mm2*60LL + ss2) * 100LL + ms2; - *start = (hh1*3600LL + mm1*60LL + ss1) * 100LL + ms1; - *duration = end - *start; - return 0; - } - return -1; -} - -static int64_t get_line(AVBPrint *buf, AVIOContext *pb) -{ - int64_t pos = avio_tell(pb); - - av_bprint_clear(buf); - for (;;) { - char c = avio_r8(pb); - if (!c) - break; - av_bprint_chars(buf, c, 1); - if (c == '\n') - break; - } - return pos; -} - -static int ass_read_header(AVFormatContext *s) -{ - ASSContext *ass = s->priv_data; - AVBPrint header, line; - int header_remaining, res = 0; - AVStream *st; - - st = avformat_new_stream(s, NULL); - if (!st) - return AVERROR(ENOMEM); - avpriv_set_pts_info(st, 64, 1, 100); - st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE; - st->codec->codec_id= AV_CODEC_ID_SSA; - - header_remaining= INT_MAX; - - av_bprint_init(&header, 0, AV_BPRINT_SIZE_UNLIMITED); - av_bprint_init(&line, 0, AV_BPRINT_SIZE_UNLIMITED); - - for (;;) { - int64_t pos = get_line(&line, s->pb); - - if (!line.str[0]) // EOF - break; - - if (!memcmp(line.str, "[Events]", 8)) - header_remaining= 2; - else if (line.str[0]=='[') - header_remaining= INT_MAX; - - if (header_remaining) { - av_bprintf(&header, "%s", line.str); - header_remaining--; - } else { - int64_t ts_start = AV_NOPTS_VALUE; - int duration = -1; - AVPacket *sub; - - if (read_ts(line.str, &ts_start, &duration) < 0) - continue; - sub = ff_subtitles_queue_insert(&ass->q, line.str, line.len, 0); - if (!sub) { - res = AVERROR(ENOMEM); - goto end; - } - sub->pos = pos; - sub->pts = ts_start; - sub->duration = duration; - } - } - - av_bprint_finalize(&line, NULL); - - res = avpriv_bprint_to_extradata(st->codec, &header); - if (res < 0) - goto end; - - ff_subtitles_queue_finalize(&ass->q); - -end: - return res; -} - -static int ass_read_packet(AVFormatContext *s, AVPacket *pkt) -{ - ASSContext *ass = s->priv_data; - return ff_subtitles_queue_read_packet(&ass->q, pkt); -} - -static int ass_read_seek(AVFormatContext *s, int stream_index, - int64_t min_ts, int64_t ts, int64_t max_ts, int flags) -{ - ASSContext *ass = s->priv_data; - return ff_subtitles_queue_seek(&ass->q, s, stream_index, - min_ts, ts, max_ts, flags); -} - -AVInputFormat ff_ass_demuxer = { - .name = "ass", - .long_name = NULL_IF_CONFIG_SMALL("SSA (SubStation Alpha) subtitle"), - .priv_data_size = sizeof(ASSContext), - .read_probe = ass_probe, - .read_header = ass_read_header, - .read_packet = ass_read_packet, - .read_close = ass_read_close, - .read_seek2 = ass_read_seek, -}; |
