diff options
Diffstat (limited to 'contrib/ffmpeg/libavformat/eacdata.c')
-rw-r--r-- | contrib/ffmpeg/libavformat/eacdata.c | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/contrib/ffmpeg/libavformat/eacdata.c b/contrib/ffmpeg/libavformat/eacdata.c deleted file mode 100644 index ffaf85e0e..000000000 --- a/contrib/ffmpeg/libavformat/eacdata.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * Electronic Arts .cdata file Demuxer - * Copyright (c) 2007 Peter Ross - * - * 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 - */ - -/** - * @file eacdata.c - * Electronic Arts cdata Format Demuxer - * by Peter Ross (suxen_drol at hotmail dot com) - * - * Technical details here: - * http://wiki.multimedia.cx/index.php?title=EA_Command_And_Conquer_3_Audio_Codec - */ - -#include "avformat.h" - -typedef struct { - unsigned int channels; - unsigned int audio_pts; -} CdataDemuxContext; - -static int cdata_probe(AVProbeData *p) -{ - const uint8_t *b = p->buf; - - if (b[0] == 0x04 && (b[1] == 0x00 || b[1] == 0x04 || b[1] == 0x0C)) - return AVPROBE_SCORE_MAX/8; - return 0; -} - -static int cdata_read_header(AVFormatContext *s, AVFormatParameters *ap) -{ - CdataDemuxContext *cdata = s->priv_data; - ByteIOContext *pb = s->pb; - unsigned int sample_rate, header; - AVStream *st; - - header = get_be16(pb); - switch (header) { - case 0x0400: cdata->channels = 1; break; - case 0x0404: cdata->channels = 2; break; - case 0x040C: cdata->channels = 4; break; - default: - av_log(s, AV_LOG_INFO, "unknown header 0x%04x\n", header); - return -1; - }; - - sample_rate = get_be16(pb); - url_fskip(pb, 12); - - st = av_new_stream(s, 0); - if (!st) - return AVERROR(ENOMEM); - st->codec->codec_type = CODEC_TYPE_AUDIO; - st->codec->codec_tag = 0; /* no fourcc */ - st->codec->codec_id = CODEC_ID_ADPCM_EA_XAS; - st->codec->channels = cdata->channels; - st->codec->sample_rate = sample_rate; - av_set_pts_info(st, 64, 1, sample_rate); - - cdata->audio_pts = 0; - return 0; -} - -static int cdata_read_packet(AVFormatContext *s, AVPacket *pkt) -{ - CdataDemuxContext *cdata = s->priv_data; - int packet_size = 76*cdata->channels; - - if (av_get_packet(s->pb, pkt, packet_size) != packet_size) - return AVERROR(EIO); - pkt->pts = cdata->audio_pts++; - return 1; -} - -AVInputFormat ea_cdata_demuxer = { - "ea_cdata", - "Electronic Arts cdata", - sizeof(CdataDemuxContext), - cdata_probe, - cdata_read_header, - cdata_read_packet, - .extensions = "cdata", -}; |