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Merge commit '31c54711cc3f1484af101d629bbb805820d37ad1' 

* commit '31c54711cc3f1484af101d629bbb805820d37ad1':
  lavf: split wav muxer and demuxer into separate files.

Conflicts:
	libavformat/wavdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
tags/n1.1
Michael Niedermayer 13 years ago
parent
d8cfa98358 31c54711cc
commit
df5e089da9
3 changed files with 232 additions and 196 deletions
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  1. +3
    -3
      libavformat/Makefile
  2. +10
    -193
      libavformat/wavdec.c
  3. +219
    -0
      libavformat/wavenc.c

+ 3
- 3
libavformat/Makefile View File

@@ -352,9 +352,9 @@ OBJS-$(CONFIG_VMD_DEMUXER) += sierravmd.o
OBJS-$(CONFIG_VOC_DEMUXER) += vocdec.o voc.o
OBJS-$(CONFIG_VOC_MUXER) += vocenc.o voc.o
OBJS-$(CONFIG_VQF_DEMUXER) += vqf.o
OBJS-$(CONFIG_W64_DEMUXER) += wav.o pcm.o
OBJS-$(CONFIG_WAV_DEMUXER) += wav.o pcm.o
OBJS-$(CONFIG_WAV_MUXER) += wav.o
OBJS-$(CONFIG_W64_DEMUXER) += wavdec.o pcm.o
OBJS-$(CONFIG_WAV_DEMUXER) += wavdec.o pcm.o
OBJS-$(CONFIG_WAV_MUXER) += wavenc.o
OBJS-$(CONFIG_WC3_DEMUXER) += wc3movie.o
OBJS-$(CONFIG_WEBM_MUXER) += matroskaenc.o matroska.o \
isom.o avc.o \


libavformat/wav.c → libavformat/wavdec.c View File

@@ -1,5 +1,5 @@
/*
* WAV muxer and demuxer
* WAV demuxer
* Copyright (c) 2001, 2002 Fabrice Bellard
*
* Sony Wave64 demuxer
@@ -36,15 +36,10 @@
#include "avio.h"
#include "metadata.h"

typedef struct {
typedef struct WAVDemuxContext {
const AVClass *class;
int64_t data;
int64_t data_end;
int64_t minpts;
int64_t maxpts;
int last_duration;
int w64;
int write_bext;
int64_t smv_data_ofs;
int smv_block_size;
int smv_frames_per_jpeg;
@@ -53,185 +48,7 @@ typedef struct {
int smv_eof;
int audio_eof;
int ignore_length;
} WAVContext;

#if CONFIG_WAV_MUXER
static inline void bwf_write_bext_string(AVFormatContext *s, const char *key, int maxlen)
{
AVDictionaryEntry *tag;
int len = 0;

if (tag = av_dict_get(s->metadata, key, NULL, 0)) {
len = strlen(tag->value);
len = FFMIN(len, maxlen);
avio_write(s->pb, tag->value, len);
}

ffio_fill(s->pb, 0, maxlen - len);
}

static void bwf_write_bext_chunk(AVFormatContext *s)
{
AVDictionaryEntry *tmp_tag;
uint64_t time_reference = 0;
int64_t bext = ff_start_tag(s->pb, "bext");

bwf_write_bext_string(s, "description", 256);
bwf_write_bext_string(s, "originator", 32);
bwf_write_bext_string(s, "originator_reference", 32);
bwf_write_bext_string(s, "origination_date", 10);
bwf_write_bext_string(s, "origination_time", 8);

if (tmp_tag = av_dict_get(s->metadata, "time_reference", NULL, 0))
time_reference = strtoll(tmp_tag->value, NULL, 10);
avio_wl64(s->pb, time_reference);
avio_wl16(s->pb, 1); // set version to 1

if (tmp_tag = av_dict_get(s->metadata, "umid", NULL, 0)) {
unsigned char umidpart_str[17] = {0};
int i;
uint64_t umidpart;
int len = strlen(tmp_tag->value+2);

for (i = 0; i < len/16; i++) {
memcpy(umidpart_str, tmp_tag->value + 2 + (i*16), 16);
umidpart = strtoll(umidpart_str, NULL, 16);
avio_wb64(s->pb, umidpart);
}
ffio_fill(s->pb, 0, 64 - i*8);
} else
ffio_fill(s->pb, 0, 64); // zero UMID

ffio_fill(s->pb, 0, 190); // Reserved

if (tmp_tag = av_dict_get(s->metadata, "coding_history", NULL, 0))
avio_put_str(s->pb, tmp_tag->value);

ff_end_tag(s->pb, bext);
}

static int wav_write_header(AVFormatContext *s)
{
WAVContext *wav = s->priv_data;
AVIOContext *pb = s->pb;
int64_t fmt, fact;

ffio_wfourcc(pb, "RIFF");
avio_wl32(pb, 0); /* file length */
ffio_wfourcc(pb, "WAVE");

/* format header */
fmt = ff_start_tag(pb, "fmt ");
if (ff_put_wav_header(pb, s->streams[0]->codec) < 0) {
av_log(s, AV_LOG_ERROR, "%s codec not supported in WAVE format\n",
s->streams[0]->codec->codec ? s->streams[0]->codec->codec->name : "NONE");
return -1;
}
ff_end_tag(pb, fmt);

if (s->streams[0]->codec->codec_tag != 0x01 /* hence for all other than PCM */
&& s->pb->seekable) {
fact = ff_start_tag(pb, "fact");
avio_wl32(pb, 0);
ff_end_tag(pb, fact);
}

if (wav->write_bext)
bwf_write_bext_chunk(s);

avpriv_set_pts_info(s->streams[0], 64, 1, s->streams[0]->codec->sample_rate);
wav->maxpts = wav->last_duration = 0;
wav->minpts = INT64_MAX;

/* info header */
ff_riff_write_info(s);

/* data header */
wav->data = ff_start_tag(pb, "data");

avio_flush(pb);

return 0;
}

static int wav_write_packet(AVFormatContext *s, AVPacket *pkt)
{
AVIOContext *pb = s->pb;
WAVContext *wav = s->priv_data;
avio_write(pb, pkt->data, pkt->size);
if(pkt->pts != AV_NOPTS_VALUE) {
wav->minpts = FFMIN(wav->minpts, pkt->pts);
wav->maxpts = FFMAX(wav->maxpts, pkt->pts);
wav->last_duration = pkt->duration;
} else
av_log(s, AV_LOG_ERROR, "wav_write_packet: NOPTS\n");
return 0;
}

static int wav_write_trailer(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
WAVContext *wav = s->priv_data;
int64_t file_size;

avio_flush(pb);

if (s->pb->seekable) {
ff_end_tag(pb, wav->data);

/* update file size */
file_size = avio_tell(pb);
avio_seek(pb, 4, SEEK_SET);
avio_wl32(pb, (uint32_t)(file_size - 8));
avio_seek(pb, file_size, SEEK_SET);

avio_flush(pb);

if(s->streams[0]->codec->codec_tag != 0x01) {
/* Update num_samps in fact chunk */
int number_of_samples;
number_of_samples = av_rescale(wav->maxpts - wav->minpts + wav->last_duration,
s->streams[0]->codec->sample_rate * (int64_t)s->streams[0]->time_base.num,
s->streams[0]->time_base.den);
avio_seek(pb, wav->data-12, SEEK_SET);
avio_wl32(pb, number_of_samples);
avio_seek(pb, file_size, SEEK_SET);
avio_flush(pb);
}
}
return 0;
}

#define OFFSET(x) offsetof(WAVContext, x)
#define ENC AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{ "write_bext", "Write BEXT chunk.", OFFSET(write_bext), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, ENC },
{ NULL },
};

static const AVClass wav_muxer_class = {
.class_name = "WAV muxer",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};

AVOutputFormat ff_wav_muxer = {
.name = "wav",
.long_name = NULL_IF_CONFIG_SMALL("WAV / WAVE (Waveform Audio)"),
.mime_type = "audio/x-wav",
.extensions = "wav",
.priv_data_size = sizeof(WAVContext),
.audio_codec = AV_CODEC_ID_PCM_S16LE,
.video_codec = AV_CODEC_ID_NONE,
.write_header = wav_write_header,
.write_packet = wav_write_packet,
.write_trailer = wav_write_trailer,
.flags = AVFMT_TS_NONSTRICT,
.codec_tag = (const AVCodecTag* const []){ ff_codec_wav_tags, 0 },
.priv_class = &wav_muxer_class,
};
#endif /* CONFIG_WAV_MUXER */
} WAVDemuxContext;


#if CONFIG_WAV_DEMUXER
@@ -409,7 +226,7 @@ static int wav_read_header(AVFormatContext *s)
uint32_t tag, list_type;
AVIOContext *pb = s->pb;
AVStream *st = NULL;
WAVContext *wav = s->priv_data;
WAVDemuxContext *wav = s->priv_data;
int ret, got_fmt = 0;
int64_t next_tag_ofs, data_ofs = -1;

@@ -592,7 +409,7 @@ static int wav_read_packet(AVFormatContext *s,
int ret, size;
int64_t left;
AVStream *st;
WAVContext *wav = s->priv_data;
WAVDemuxContext *wav = s->priv_data;

if (wav->smv_data_ofs > 0) {
int64_t audio_dts, video_dts;
@@ -670,7 +487,7 @@ smv_out:
static int wav_read_seek(AVFormatContext *s,
int stream_index, int64_t timestamp, int flags)
{
WAVContext *wav = s->priv_data;
WAVDemuxContext *wav = s->priv_data;
AVStream *st;
wav->smv_eof = 0;
wav->audio_eof = 0;
@@ -697,7 +514,7 @@ static int wav_read_seek(AVFormatContext *s,
return ff_pcm_read_seek(s, stream_index, timestamp, flags);
}

#define OFFSET(x) offsetof(WAVContext, x)
#define OFFSET(x) offsetof(WAVDemuxContext, x)
#define DEC AV_OPT_FLAG_DECODING_PARAM
static const AVOption demux_options[] = {
{ "ignore_length", "Ignore length", OFFSET(ignore_length), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, DEC },
@@ -713,7 +530,7 @@ static const AVClass wav_demuxer_class = {
AVInputFormat ff_wav_demuxer = {
.name = "wav",
.long_name = NULL_IF_CONFIG_SMALL("WAV / WAVE (Waveform Audio)"),
.priv_data_size = sizeof(WAVContext),
.priv_data_size = sizeof(WAVDemuxContext),
.read_probe = wav_probe,
.read_header = wav_read_header,
.read_packet = wav_read_packet,
@@ -750,7 +567,7 @@ static int w64_read_header(AVFormatContext *s)
{
int64_t size;
AVIOContext *pb = s->pb;
WAVContext *wav = s->priv_data;
WAVDemuxContext *wav = s->priv_data;
AVStream *st;
uint8_t guid[16];
int ret;
@@ -803,7 +620,7 @@ static int w64_read_header(AVFormatContext *s)
AVInputFormat ff_w64_demuxer = {
.name = "w64",
.long_name = NULL_IF_CONFIG_SMALL("Sony Wave64"),
.priv_data_size = sizeof(WAVContext),
.priv_data_size = sizeof(WAVDemuxContext),
.read_probe = w64_probe,
.read_header = w64_read_header,
.read_packet = wav_read_packet,

+ 219
- 0
libavformat/wavenc.c View File

@@ -0,0 +1,219 @@
/*
* WAV muxer
* Copyright (c) 2001, 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 <stdint.h>
#include <string.h>

#include "libavutil/dict.h"
#include "libavutil/common.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"

#include "avformat.h"
#include "avio.h"
#include "avio_internal.h"
#include "internal.h"
#include "riff.h"

typedef struct WAVMuxContext {
const AVClass *class;
int64_t data;
int64_t minpts;
int64_t maxpts;
int last_duration;
int write_bext;
} WAVMuxContext;

static inline void bwf_write_bext_string(AVFormatContext *s, const char *key, int maxlen)
{
AVDictionaryEntry *tag;
int len = 0;

if (tag = av_dict_get(s->metadata, key, NULL, 0)) {
len = strlen(tag->value);
len = FFMIN(len, maxlen);
avio_write(s->pb, tag->value, len);
}

ffio_fill(s->pb, 0, maxlen - len);
}

static void bwf_write_bext_chunk(AVFormatContext *s)
{
AVDictionaryEntry *tmp_tag;
uint64_t time_reference = 0;
int64_t bext = ff_start_tag(s->pb, "bext");

bwf_write_bext_string(s, "description", 256);
bwf_write_bext_string(s, "originator", 32);
bwf_write_bext_string(s, "originator_reference", 32);
bwf_write_bext_string(s, "origination_date", 10);
bwf_write_bext_string(s, "origination_time", 8);

if (tmp_tag = av_dict_get(s->metadata, "time_reference", NULL, 0))
time_reference = strtoll(tmp_tag->value, NULL, 10);
avio_wl64(s->pb, time_reference);
avio_wl16(s->pb, 1); // set version to 1

if (tmp_tag = av_dict_get(s->metadata, "umid", NULL, 0)) {
unsigned char umidpart_str[17] = {0};
int i;
uint64_t umidpart;
int len = strlen(tmp_tag->value+2);

for (i = 0; i < len/16; i++) {
memcpy(umidpart_str, tmp_tag->value + 2 + (i*16), 16);
umidpart = strtoll(umidpart_str, NULL, 16);
avio_wb64(s->pb, umidpart);
}
ffio_fill(s->pb, 0, 64 - i*8);
} else
ffio_fill(s->pb, 0, 64); // zero UMID

ffio_fill(s->pb, 0, 190); // Reserved

if (tmp_tag = av_dict_get(s->metadata, "coding_history", NULL, 0))
avio_put_str(s->pb, tmp_tag->value);

ff_end_tag(s->pb, bext);
}

static int wav_write_header(AVFormatContext *s)
{
WAVMuxContext *wav = s->priv_data;
AVIOContext *pb = s->pb;
int64_t fmt, fact;

ffio_wfourcc(pb, "RIFF");
avio_wl32(pb, 0); /* file length */
ffio_wfourcc(pb, "WAVE");

/* format header */
fmt = ff_start_tag(pb, "fmt ");
if (ff_put_wav_header(pb, s->streams[0]->codec) < 0) {
av_log(s, AV_LOG_ERROR, "%s codec not supported in WAVE format\n",
s->streams[0]->codec->codec ? s->streams[0]->codec->codec->name : "NONE");
return -1;
}
ff_end_tag(pb, fmt);

if (s->streams[0]->codec->codec_tag != 0x01 /* hence for all other than PCM */
&& s->pb->seekable) {
fact = ff_start_tag(pb, "fact");
avio_wl32(pb, 0);
ff_end_tag(pb, fact);
}

if (wav->write_bext)
bwf_write_bext_chunk(s);

avpriv_set_pts_info(s->streams[0], 64, 1, s->streams[0]->codec->sample_rate);
wav->maxpts = wav->last_duration = 0;
wav->minpts = INT64_MAX;

/* info header */
ff_riff_write_info(s);

/* data header */
wav->data = ff_start_tag(pb, "data");

avio_flush(pb);

return 0;
}

static int wav_write_packet(AVFormatContext *s, AVPacket *pkt)
{
AVIOContext *pb = s->pb;
WAVMuxContext *wav = s->priv_data;
avio_write(pb, pkt->data, pkt->size);
if(pkt->pts != AV_NOPTS_VALUE) {
wav->minpts = FFMIN(wav->minpts, pkt->pts);
wav->maxpts = FFMAX(wav->maxpts, pkt->pts);
wav->last_duration = pkt->duration;
} else
av_log(s, AV_LOG_ERROR, "wav_write_packet: NOPTS\n");
return 0;
}

static int wav_write_trailer(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
WAVMuxContext *wav = s->priv_data;
int64_t file_size;

avio_flush(pb);

if (s->pb->seekable) {
ff_end_tag(pb, wav->data);

/* update file size */
file_size = avio_tell(pb);
avio_seek(pb, 4, SEEK_SET);
avio_wl32(pb, (uint32_t)(file_size - 8));
avio_seek(pb, file_size, SEEK_SET);

avio_flush(pb);

if(s->streams[0]->codec->codec_tag != 0x01) {
/* Update num_samps in fact chunk */
int number_of_samples;
number_of_samples = av_rescale(wav->maxpts - wav->minpts + wav->last_duration,
s->streams[0]->codec->sample_rate * (int64_t)s->streams[0]->time_base.num,
s->streams[0]->time_base.den);
avio_seek(pb, wav->data-12, SEEK_SET);
avio_wl32(pb, number_of_samples);
avio_seek(pb, file_size, SEEK_SET);
avio_flush(pb);
}
}
return 0;
}

#define OFFSET(x) offsetof(WAVMuxContext, x)
#define ENC AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{ "write_bext", "Write BEXT chunk.", OFFSET(write_bext), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, ENC },
{ NULL },
};

static const AVClass wav_muxer_class = {
.class_name = "WAV muxer",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};

AVOutputFormat ff_wav_muxer = {
.name = "wav",
.long_name = NULL_IF_CONFIG_SMALL("WAV / WAVE (Waveform Audio)"),
.mime_type = "audio/x-wav",
.extensions = "wav",
.priv_data_size = sizeof(WAVMuxContext),
.audio_codec = AV_CODEC_ID_PCM_S16LE,
.video_codec = AV_CODEC_ID_NONE,
.write_header = wav_write_header,
.write_packet = wav_write_packet,
.write_trailer = wav_write_trailer,
.flags = AVFMT_TS_NONSTRICT,
.codec_tag = (const AVCodecTag* const []){ ff_codec_wav_tags, 0 },
.priv_class = &wav_muxer_class,
};

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