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78accb876c
* qatar/master: ffmpeg: fix some indentation ffmpeg: fix operation with --disable-avfilter simple_idct: remove disabled code motion_est: remove disabled code vc1: remove disabled code fate: separate lavf-mxf_d10 test from lavf-mxf cabac: Move code only used in the cabac test program to cabac.c. ffplay: warn that -pix_fmt is no longer working, suggest alternative ffplay: warn that -s is no longer working, suggest alternative lavf: rename enc variable in utils.c:has_codec_parameters() lavf: use designated initialisers for all (de)muxers. wav: remove a use of deprecated AV_METADATA_ macro rmdec: remove useless ap parameter from rm_read_header_old() dct-test: remove write-only variable des: fix #if conditional around P_shuffle Use LOCAL_ALIGNED in ff_check_alignment() Conflicts: ffmpeg.c libavformat/avidec.c libavformat/matroskaenc.c libavformat/mp3enc.c libavformat/oggenc.c libavformat/utils.c tests/ref/lavf/mxf Merged-by: Michael Niedermayer <michaelni@gmx.at>
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
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* CD Graphics Demuxer
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* Copyright (c) 2009 Michael Tison
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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 "avformat.h"
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#define CDG_PACKET_SIZE 24
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static int read_header(AVFormatContext *s, AVFormatParameters *ap)
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{
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AVStream *vst;
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int ret;
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vst = av_new_stream(s, 0);
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if (!vst)
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return AVERROR(ENOMEM);
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vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
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vst->codec->codec_id = CODEC_ID_CDGRAPHICS;
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/// 75 sectors/sec * 4 packets/sector = 300 packets/sec
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av_set_pts_info(vst, 32, 1, 300);
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ret = avio_size(s->pb);
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if (ret > 0)
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vst->duration = (ret * vst->time_base.den) / (CDG_PACKET_SIZE * 300);
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return 0;
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}
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static int read_packet(AVFormatContext *s, AVPacket *pkt)
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{
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int ret;
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ret = av_get_packet(s->pb, pkt, CDG_PACKET_SIZE);
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pkt->stream_index = 0;
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return ret;
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}
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AVInputFormat ff_cdg_demuxer = {
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.name = "cdg",
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.long_name = NULL_IF_CONFIG_SMALL("CD Graphics Format"),
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.read_header = read_header,
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.read_packet = read_packet,
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.extensions = "cdg"
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};
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