3 * Copyright (c) 2002 Fabrice Bellard
5 * This file is part of Libav.
7 * Libav 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.
12 * Libav 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.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #define RAW_SAMPLES 1024
28 static int raw_read_packet(AVFormatContext *s, AVPacket *pkt)
31 // AVStream *st = s->streams[0];
33 size= RAW_SAMPLES*s->streams[0]->codec->block_align;
35 ret= av_get_packet(s->pb, pkt, size);
37 pkt->stream_index = 0;
41 bps= av_get_bits_per_sample(s->streams[0]->codec->codec_id);
42 assert(bps); // if false there IS a bug elsewhere (NOT in this function)
44 pkt->pts= pkt->pos*8 / (bps * s->streams[0]->codec->channels);
49 #define PCMDEF(name, long_name, ext, codec) \
50 AVInputFormat ff_pcm_ ## name ## _demuxer = {\
52 NULL_IF_CONFIG_SMALL(long_name),\
53 sizeof(RawAudioDemuxerContext),\
59 .flags= AVFMT_GENERIC_INDEX,\
62 .priv_class = &ff_rawaudio_demuxer_class,\
65 PCMDEF(f64be, "PCM 64 bit floating-point big-endian format",
66 NULL, CODEC_ID_PCM_F64BE)
68 PCMDEF(f64le, "PCM 64 bit floating-point little-endian format",
69 NULL, CODEC_ID_PCM_F64LE)
71 PCMDEF(f32be, "PCM 32 bit floating-point big-endian format",
72 NULL, CODEC_ID_PCM_F32BE)
74 PCMDEF(f32le, "PCM 32 bit floating-point little-endian format",
75 NULL, CODEC_ID_PCM_F32LE)
77 PCMDEF(s32be, "PCM signed 32 bit big-endian format",
78 NULL, CODEC_ID_PCM_S32BE)
80 PCMDEF(s32le, "PCM signed 32 bit little-endian format",
81 NULL, CODEC_ID_PCM_S32LE)
83 PCMDEF(s24be, "PCM signed 24 bit big-endian format",
84 NULL, CODEC_ID_PCM_S24BE)
86 PCMDEF(s24le, "PCM signed 24 bit little-endian format",
87 NULL, CODEC_ID_PCM_S24LE)
89 PCMDEF(s16be, "PCM signed 16 bit big-endian format",
90 AV_NE("sw", NULL), CODEC_ID_PCM_S16BE)
92 PCMDEF(s16le, "PCM signed 16 bit little-endian format",
93 AV_NE(NULL, "sw"), CODEC_ID_PCM_S16LE)
95 PCMDEF(s8, "PCM signed 8 bit format",
96 "sb", CODEC_ID_PCM_S8)
98 PCMDEF(u32be, "PCM unsigned 32 bit big-endian format",
99 NULL, CODEC_ID_PCM_U32BE)
101 PCMDEF(u32le, "PCM unsigned 32 bit little-endian format",
102 NULL, CODEC_ID_PCM_U32LE)
104 PCMDEF(u24be, "PCM unsigned 24 bit big-endian format",
105 NULL, CODEC_ID_PCM_U24BE)
107 PCMDEF(u24le, "PCM unsigned 24 bit little-endian format",
108 NULL, CODEC_ID_PCM_U24LE)
110 PCMDEF(u16be, "PCM unsigned 16 bit big-endian format",
111 AV_NE("uw", NULL), CODEC_ID_PCM_U16BE)
113 PCMDEF(u16le, "PCM unsigned 16 bit little-endian format",
114 AV_NE(NULL, "uw"), CODEC_ID_PCM_U16LE)
116 PCMDEF(u8, "PCM unsigned 8 bit format",
117 "ub", CODEC_ID_PCM_U8)
119 PCMDEF(alaw, "PCM A-law format",
120 "al", CODEC_ID_PCM_ALAW)
122 PCMDEF(mulaw, "PCM mu-law format",
123 "ul", CODEC_ID_PCM_MULAW)