* Sierra SOL demuxer
* Copyright Konstantin Shishkov
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
* Based on documents from Game Audio Player and own research
*/
-#include "libavutil/bswap.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/intreadwrite.h"
#include "avformat.h"
-#include "raw.h"
+#include "internal.h"
+#include "pcm.h"
/* if we don't know the size in advance */
#define AU_UNKNOWN_SIZE ((uint32_t)(~0))
static int sol_probe(AVProbeData *p)
{
/* check file header */
- uint16_t magic;
- magic=av_le2ne16(*((uint16_t*)p->buf));
+ uint16_t magic = AV_RL32(p->buf);
if ((magic == 0x0B8D || magic == 0x0C0D || magic == 0x0C8D) &&
p->buf[2] == 'S' && p->buf[3] == 'O' &&
p->buf[4] == 'L' && p->buf[5] == 0)
#define SOL_16BIT 4
#define SOL_STEREO 16
-static enum CodecID sol_codec_id(int magic, int type)
+static enum AVCodecID sol_codec_id(int magic, int type)
{
- if (magic == 0x0B8D)
- {
- if (type & SOL_DPCM) return CODEC_ID_SOL_DPCM;
- else return CODEC_ID_PCM_U8;
- }
if (type & SOL_DPCM)
- {
- if (type & SOL_16BIT) return CODEC_ID_SOL_DPCM;
- else if (magic == 0x0C8D) return CODEC_ID_SOL_DPCM;
- else return CODEC_ID_SOL_DPCM;
- }
- if (type & SOL_16BIT) return CODEC_ID_PCM_S16LE;
- return CODEC_ID_PCM_U8;
+ return AV_CODEC_ID_SOL_DPCM;
+
+ if (magic == 0x0B8D)
+ return AV_CODEC_ID_PCM_U8;
+
+ if (type & SOL_16BIT)
+ return AV_CODEC_ID_PCM_S16LE;
+
+ return AV_CODEC_ID_PCM_U8;
}
static int sol_codec_type(int magic, int type)
return 2;
}
-static int sol_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
+static int sol_read_header(AVFormatContext *s)
{
- int size;
unsigned int magic,tag;
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
unsigned int id, channels, rate, type;
- enum CodecID codec;
+ enum AVCodecID codec;
AVStream *st;
/* check ".snd" header */
- magic = get_le16(pb);
- tag = get_le32(pb);
+ magic = avio_rl16(pb);
+ tag = avio_rl32(pb);
if (tag != MKTAG('S', 'O', 'L', 0))
return -1;
- rate = get_le16(pb);
- type = get_byte(pb);
- size = get_le32(pb);
+ rate = avio_rl16(pb);
+ type = avio_r8(pb);
+ avio_skip(pb, 4); /* size */
if (magic != 0x0B8D)
- get_byte(pb); /* newer SOLs contain padding byte */
+ avio_r8(pb); /* newer SOLs contain padding byte */
codec = sol_codec_id(magic, type);
channels = sol_channels(magic, type);
- if (codec == CODEC_ID_SOL_DPCM)
+ if (codec == AV_CODEC_ID_SOL_DPCM)
id = sol_codec_type(magic, type);
else id = 0;
/* now we are ready: build format streams */
- st = av_new_stream(s, 0);
+ st = avformat_new_stream(s, NULL);
if (!st)
return -1;
- st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- st->codec->codec_tag = id;
- st->codec->codec_id = codec;
- st->codec->channels = channels;
- st->codec->sample_rate = rate;
- av_set_pts_info(st, 64, 1, rate);
+ st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
+ st->codecpar->codec_tag = id;
+ st->codecpar->codec_id = codec;
+ st->codecpar->channels = channels;
+ st->codecpar->channel_layout = channels == 1 ? AV_CH_LAYOUT_MONO :
+ AV_CH_LAYOUT_STEREO;
+ st->codecpar->sample_rate = rate;
+ avpriv_set_pts_info(st, 64, 1, rate);
return 0;
}
{
int ret;
- if (url_feof(s->pb))
+ if (s->pb->eof_reached)
return AVERROR(EIO);
ret= av_get_packet(s->pb, pkt, MAX_SIZE);
+ if (ret < 0)
+ return ret;
pkt->stream_index = 0;
/* note: we need to modify the packet size here to handle the last
return 0;
}
-AVInputFormat sol_demuxer = {
- "sol",
- NULL_IF_CONFIG_SMALL("Sierra SOL format"),
- 0,
- sol_probe,
- sol_read_header,
- sol_read_packet,
- NULL,
- pcm_read_seek,
+AVInputFormat ff_sol_demuxer = {
+ .name = "sol",
+ .long_name = NULL_IF_CONFIG_SMALL("Sierra SOL"),
+ .read_probe = sol_probe,
+ .read_header = sol_read_header,
+ .read_packet = sol_read_packet,
+ .read_seek = ff_pcm_read_seek,
};
projects / ffmpeg / blobdiff