mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-18 03:19:31 +02:00
bc70684e74
This is possible now that the next-API is gone. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com> Signed-off-by: James Almer <jamrial@gmail.com>
63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/*
|
|
* Copyright (c) 2015 Paul B Mahol
|
|
*
|
|
* 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 "internal.h"
|
|
#include "pcm.h"
|
|
|
|
static int wve_probe(const AVProbeData *p)
|
|
{
|
|
if (memcmp(p->buf, "ALawSoundFile**\0\017\020", 18) ||
|
|
memcmp(p->buf + 22, "\0\0\0\1\0\0\0\0\0\0", 10))
|
|
return 0;
|
|
return AVPROBE_SCORE_MAX;
|
|
}
|
|
|
|
static int wve_read_header(AVFormatContext *s)
|
|
{
|
|
AVStream *st;
|
|
|
|
st = avformat_new_stream(s, NULL);
|
|
if (!st)
|
|
return AVERROR(ENOMEM);
|
|
|
|
avio_skip(s->pb, 18);
|
|
st->duration = avio_rb32(s->pb);
|
|
st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
|
|
st->codecpar->codec_id = AV_CODEC_ID_PCM_ALAW;
|
|
st->codecpar->sample_rate = 8000;
|
|
st->codecpar->channels = 1;
|
|
st->codecpar->bits_per_coded_sample = av_get_bits_per_sample(st->codecpar->codec_id);
|
|
st->codecpar->block_align = st->codecpar->bits_per_coded_sample * st->codecpar->channels / 8;
|
|
avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
|
|
avio_skip(s->pb, 10);
|
|
|
|
return 0;
|
|
}
|
|
|
|
const AVInputFormat ff_wve_demuxer = {
|
|
.name = "wve",
|
|
.long_name = NULL_IF_CONFIG_SMALL("Psion 3 audio"),
|
|
.read_probe = wve_probe,
|
|
.read_header = wve_read_header,
|
|
.read_packet = ff_pcm_read_packet,
|
|
.read_seek = ff_pcm_read_seek,
|
|
};
|