diff options
Diffstat (limited to 'ffmpeg1/libavformat/pcmdec.c')
| -rw-r--r-- | ffmpeg1/libavformat/pcmdec.c | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/ffmpeg1/libavformat/pcmdec.c b/ffmpeg1/libavformat/pcmdec.c deleted file mode 100644 index f4264d9..0000000 --- a/ffmpeg1/libavformat/pcmdec.c +++ /dev/null @@ -1,146 +0,0 @@ -/* - * RAW PCM demuxers - * Copyright (c) 2002 Fabrice Bellard - * - * 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" -#include "libavutil/log.h" -#include "libavutil/opt.h" -#include "libavutil/avassert.h" - -typedef struct PCMAudioDemuxerContext { - AVClass *class; - int sample_rate; - int channels; -} PCMAudioDemuxerContext; - -static int pcm_read_header(AVFormatContext *s) -{ - PCMAudioDemuxerContext *s1 = s->priv_data; - AVStream *st; - - st = avformat_new_stream(s, NULL); - if (!st) - return AVERROR(ENOMEM); - - - st->codec->codec_type = AVMEDIA_TYPE_AUDIO; - st->codec->codec_id = s->iformat->raw_codec_id; - st->codec->sample_rate = s1->sample_rate; - st->codec->channels = s1->channels; - - st->codec->bits_per_coded_sample = - av_get_bits_per_sample(st->codec->codec_id); - - av_assert0(st->codec->bits_per_coded_sample > 0); - - st->codec->block_align = - st->codec->bits_per_coded_sample * st->codec->channels / 8; - - avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate); - return 0; -} - -static const AVOption pcm_options[] = { - { "sample_rate", "", offsetof(PCMAudioDemuxerContext, sample_rate), AV_OPT_TYPE_INT, {.i64 = 44100}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM }, - { "channels", "", offsetof(PCMAudioDemuxerContext, channels), AV_OPT_TYPE_INT, {.i64 = 1}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM }, - { NULL }, -}; - -#define PCMDEF(name_, long_name_, ext, codec) \ -static const AVClass name_ ## _demuxer_class = { \ - .class_name = #name_ " demuxer", \ - .item_name = av_default_item_name, \ - .option = pcm_options, \ - .version = LIBAVUTIL_VERSION_INT, \ -}; \ -AVInputFormat ff_pcm_ ## name_ ## _demuxer = { \ - .name = #name_, \ - .long_name = NULL_IF_CONFIG_SMALL(long_name_), \ - .priv_data_size = sizeof(PCMAudioDemuxerContext), \ - .read_header = pcm_read_header, \ - .read_packet = ff_pcm_read_packet, \ - .read_seek = ff_pcm_read_seek, \ - .flags = AVFMT_GENERIC_INDEX, \ - .extensions = ext, \ - .raw_codec_id = codec, \ - .priv_class = &name_ ## _demuxer_class, \ -}; - -PCMDEF(f64be, "PCM 64-bit floating-point big-endian", - NULL, AV_CODEC_ID_PCM_F64BE) - -PCMDEF(f64le, "PCM 64-bit floating-point little-endian", - NULL, AV_CODEC_ID_PCM_F64LE) - -PCMDEF(f32be, "PCM 32-bit floating-point big-endian", - NULL, AV_CODEC_ID_PCM_F32BE) - -PCMDEF(f32le, "PCM 32-bit floating-point little-endian", - NULL, AV_CODEC_ID_PCM_F32LE) - -PCMDEF(s32be, "PCM signed 32-bit big-endian", - NULL, AV_CODEC_ID_PCM_S32BE) - -PCMDEF(s32le, "PCM signed 32-bit little-endian", - NULL, AV_CODEC_ID_PCM_S32LE) - -PCMDEF(s24be, "PCM signed 24-bit big-endian", - NULL, AV_CODEC_ID_PCM_S24BE) - -PCMDEF(s24le, "PCM signed 24-bit little-endian", - NULL, AV_CODEC_ID_PCM_S24LE) - -PCMDEF(s16be, "PCM signed 16-bit big-endian", - AV_NE("sw", NULL), AV_CODEC_ID_PCM_S16BE) - -PCMDEF(s16le, "PCM signed 16-bit little-endian", - AV_NE(NULL, "sw"), AV_CODEC_ID_PCM_S16LE) - -PCMDEF(s8, "PCM signed 8-bit", - "sb", AV_CODEC_ID_PCM_S8) - -PCMDEF(u32be, "PCM unsigned 32-bit big-endian", - NULL, AV_CODEC_ID_PCM_U32BE) - -PCMDEF(u32le, "PCM unsigned 32-bit little-endian", - NULL, AV_CODEC_ID_PCM_U32LE) - -PCMDEF(u24be, "PCM unsigned 24-bit big-endian", - NULL, AV_CODEC_ID_PCM_U24BE) - -PCMDEF(u24le, "PCM unsigned 24-bit little-endian", - NULL, AV_CODEC_ID_PCM_U24LE) - -PCMDEF(u16be, "PCM unsigned 16-bit big-endian", - AV_NE("uw", NULL), AV_CODEC_ID_PCM_U16BE) - -PCMDEF(u16le, "PCM unsigned 16-bit little-endian", - AV_NE(NULL, "uw"), AV_CODEC_ID_PCM_U16LE) - -PCMDEF(u8, "PCM unsigned 8-bit", - "ub", AV_CODEC_ID_PCM_U8) - -PCMDEF(alaw, "PCM A-law", - "al", AV_CODEC_ID_PCM_ALAW) - -PCMDEF(mulaw, "PCM mu-law", - "ul", AV_CODEC_ID_PCM_MULAW) |