diff options
Diffstat (limited to 'contrib/ffmpeg/libavformat/apc.c')
-rw-r--r-- | contrib/ffmpeg/libavformat/apc.c | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/contrib/ffmpeg/libavformat/apc.c b/contrib/ffmpeg/libavformat/apc.c deleted file mode 100644 index 97de8c88e..000000000 --- a/contrib/ffmpeg/libavformat/apc.c +++ /dev/null @@ -1,90 +0,0 @@ -/* - * CRYO APC audio format demuxer - * Copyright (c) 2007 Anssi Hannula <anssi.hannula@gmail.com> - * - * 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 "avformat.h" -#include "string.h" - -static int apc_probe(AVProbeData *p) -{ - if (!strncmp(p->buf, "CRYO_APC", 8)) - return AVPROBE_SCORE_MAX; - - return 0; -} - -static int apc_read_header(AVFormatContext *s, AVFormatParameters *ap) -{ - ByteIOContext *pb = s->pb; - AVStream *st; - - get_le32(pb); /* CRYO */ - get_le32(pb); /* _APC */ - get_le32(pb); /* 1.20 */ - - st = av_new_stream(s, 0); - if (!st) - return AVERROR(ENOMEM); - - st->codec->codec_type = CODEC_TYPE_AUDIO; - st->codec->codec_id = CODEC_ID_ADPCM_IMA_WS; - - get_le32(pb); /* number of samples */ - st->codec->sample_rate = get_le32(pb); - - st->codec->extradata_size = 2 * 4; - st->codec->extradata = av_malloc(st->codec->extradata_size + - FF_INPUT_BUFFER_PADDING_SIZE); - if (!st->codec->extradata) - return AVERROR(ENOMEM); - - /* initial predictor values for adpcm decoder */ - get_buffer(pb, st->codec->extradata, 2 * 4); - - st->codec->channels = 1; - if (get_le32(pb)) - st->codec->channels = 2; - - st->codec->bits_per_sample = 4; - st->codec->bit_rate = st->codec->bits_per_sample * st->codec->channels - * st->codec->sample_rate; - st->codec->block_align = 1; - - return 0; -} - -#define MAX_READ_SIZE 4096 - -static int apc_read_packet(AVFormatContext *s, AVPacket *pkt) -{ - if (av_get_packet(s->pb, pkt, MAX_READ_SIZE) <= 0) - return AVERROR(EIO); - pkt->stream_index = 0; - return 0; -} - -AVInputFormat apc_demuxer = { - "apc", - "CRYO APC format", - 0, - apc_probe, - apc_read_header, - apc_read_packet, -}; |