wtvdec: set correct codec ID for CC streams.
[ffmpeg.git] / libavformat / pcmdec.c
1 /*
2  * RAW PCM demuxers
3  * Copyright (c) 2002 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21
22 #include "avformat.h"
23 #include "rawdec.h"
24 #include "pcm.h"
25 #include "libavutil/log.h"
26 #include "libavutil/opt.h"
27 #include "libavutil/avassert.h"
28
29 #define RAW_SAMPLES     1024
30
31 static int raw_read_packet(AVFormatContext *s, AVPacket *pkt)
32 {
33     int ret, size, bps;
34     //    AVStream *st = s->streams[0];
35
36     size= RAW_SAMPLES*s->streams[0]->codec->block_align;
37
38     ret= av_get_packet(s->pb, pkt, size);
39
40     pkt->flags &= ~AV_PKT_FLAG_CORRUPT;
41     pkt->stream_index = 0;
42     if (ret < 0)
43         return ret;
44
45     bps= av_get_bits_per_sample(s->streams[0]->codec->codec_id);
46     av_assert1(bps); // if false there IS a bug elsewhere (NOT in this function)
47     pkt->dts=
48     pkt->pts= pkt->pos*8 / (bps * s->streams[0]->codec->channels);
49
50     return ret;
51 }
52
53 static const AVOption pcm_options[] = {
54     { "sample_rate", "", offsetof(RawAudioDemuxerContext, sample_rate), AV_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
55     { "channels",    "", offsetof(RawAudioDemuxerContext, channels),    AV_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
56     { NULL },
57 };
58
59 #define PCMDEF(name_, long_name_, ext, codec)               \
60 static const AVClass name_ ## _demuxer_class = {            \
61     .class_name = #name_ " demuxer",                        \
62     .item_name  = av_default_item_name,                     \
63     .option     = pcm_options,                              \
64     .version    = LIBAVUTIL_VERSION_INT,                    \
65 };                                                          \
66 AVInputFormat ff_pcm_ ## name_ ## _demuxer = {              \
67     .name           = #name_,                               \
68     .long_name      = NULL_IF_CONFIG_SMALL(long_name_),     \
69     .priv_data_size = sizeof(RawAudioDemuxerContext),       \
70     .read_header    = ff_raw_read_header,                   \
71     .read_packet    = raw_read_packet,                      \
72     .read_seek      = ff_pcm_read_seek,                     \
73     .flags          = AVFMT_GENERIC_INDEX,                  \
74     .extensions     = ext,                                  \
75     .raw_codec_id   = codec,                                \
76     .priv_class     = &name_ ## _demuxer_class,             \
77 };
78
79 PCMDEF(f64be, "PCM 64-bit floating-point big-endian",
80        NULL, AV_CODEC_ID_PCM_F64BE)
81
82 PCMDEF(f64le, "PCM 64-bit floating-point little-endian",
83        NULL, AV_CODEC_ID_PCM_F64LE)
84
85 PCMDEF(f32be, "PCM 32-bit floating-point big-endian",
86        NULL, AV_CODEC_ID_PCM_F32BE)
87
88 PCMDEF(f32le, "PCM 32-bit floating-point little-endian",
89        NULL, AV_CODEC_ID_PCM_F32LE)
90
91 PCMDEF(s32be, "PCM signed 32-bit big-endian",
92        NULL, AV_CODEC_ID_PCM_S32BE)
93
94 PCMDEF(s32le, "PCM signed 32-bit little-endian",
95        NULL, AV_CODEC_ID_PCM_S32LE)
96
97 PCMDEF(s24be, "PCM signed 24-bit big-endian",
98        NULL, AV_CODEC_ID_PCM_S24BE)
99
100 PCMDEF(s24le, "PCM signed 24-bit little-endian",
101        NULL, AV_CODEC_ID_PCM_S24LE)
102
103 PCMDEF(s16be, "PCM signed 16-bit big-endian",
104        AV_NE("sw", NULL), AV_CODEC_ID_PCM_S16BE)
105
106 PCMDEF(s16le, "PCM signed 16-bit little-endian",
107        AV_NE(NULL, "sw"), AV_CODEC_ID_PCM_S16LE)
108
109 PCMDEF(s8, "PCM signed 8-bit",
110        "sb", AV_CODEC_ID_PCM_S8)
111
112 PCMDEF(u32be, "PCM unsigned 32-bit big-endian",
113        NULL, AV_CODEC_ID_PCM_U32BE)
114
115 PCMDEF(u32le, "PCM unsigned 32-bit little-endian",
116        NULL, AV_CODEC_ID_PCM_U32LE)
117
118 PCMDEF(u24be, "PCM unsigned 24-bit big-endian",
119        NULL, AV_CODEC_ID_PCM_U24BE)
120
121 PCMDEF(u24le, "PCM unsigned 24-bit little-endian",
122        NULL, AV_CODEC_ID_PCM_U24LE)
123
124 PCMDEF(u16be, "PCM unsigned 16-bit big-endian",
125        AV_NE("uw", NULL), AV_CODEC_ID_PCM_U16BE)
126
127 PCMDEF(u16le, "PCM unsigned 16-bit little-endian",
128        AV_NE(NULL, "uw"), AV_CODEC_ID_PCM_U16LE)
129
130 PCMDEF(u8, "PCM unsigned 8-bit",
131        "ub", AV_CODEC_ID_PCM_U8)
132
133 PCMDEF(alaw, "PCM A-law",
134        "al", AV_CODEC_ID_PCM_ALAW)
135
136 PCMDEF(mulaw, "PCM mu-law",
137        "ul", AV_CODEC_ID_PCM_MULAW)