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wav: K&R formatting cosmetics

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Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
Luca Barbato 2013-05-02 11:42:09 +02:00 committed by Diego Biurrun
parent 6b753015ca
commit 13f57a4d88
1 changed files with 70 additions and 52 deletions
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122
libavformat/wavdec.c
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@ -29,19 +29,18 @@
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "avformat.h"
#include "internal.h"
#include "avio.h"
#include "avio_internal.h"
#include "internal.h"
#include "metadata.h"
#include "pcm.h"
#include "riff.h"
#include "avio.h"
#include "metadata.h"
typedef struct WAVDemuxContext {
int64_t data_end;
int w64;
} WAVDemuxContext;
#if CONFIG_WAV_DEMUXER
static int64_t next_tag(AVIOContext *pb, uint32_t *tag)
@ -74,11 +73,9 @@ static int wav_probe(AVProbeData *p)
return 0;
if (!memcmp(p->buf + 8, "WAVE", 4)) {
if (!memcmp(p->buf, "RIFF", 4))
/*
Since ACT demuxer has standard WAV header at top of it's own,
returning score is decreased to avoid probe conflict
between ACT and WAV.
*/
/* Since ACT demuxer has standard WAV header at top of it's
* own, returning score is decreased to avoid probe conflict
* between ACT and WAV. */
return AVPROBE_SCORE_MAX - 1;
else if (!memcmp(p->buf, "RF64", 4) &&
!memcmp(p->buf + 12, "ds64", 4))
@ -151,16 +148,22 @@ static int wav_parse_bext_tag(AVFormatContext *s, int64_t size)
if (umid_mask) {
/* the string formatting below is per SMPTE 330M-2004 Annex C */
if (umid_parts[4] == 0 && umid_parts[5] == 0 && umid_parts[6] == 0 && umid_parts[7] == 0) {
if (umid_parts[4] == 0 && umid_parts[5] == 0 &&
umid_parts[6] == 0 && umid_parts[7] == 0) {
/* basic UMID */
snprintf(temp, sizeof(temp), "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
umid_parts[0], umid_parts[1], umid_parts[2], umid_parts[3]);
snprintf(temp, sizeof(temp),
"0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
umid_parts[0], umid_parts[1],
umid_parts[2], umid_parts[3]);
} else {
/* extended UMID */
snprintf(temp, sizeof(temp), "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64
"0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
umid_parts[0], umid_parts[1], umid_parts[2], umid_parts[3],
umid_parts[4], umid_parts[5], umid_parts[6], umid_parts[7]);
snprintf(temp, sizeof(temp),
"0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64
"0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
umid_parts[0], umid_parts[1],
umid_parts[2], umid_parts[3],
umid_parts[4], umid_parts[5],
umid_parts[6], umid_parts[7]);
}
if ((ret = av_dict_set(&s->metadata, "umid", temp, 0)) < 0)
@ -175,7 +178,7 @@ static int wav_parse_bext_tag(AVFormatContext *s, int64_t size)
/* CodingHistory present */
size -= 602;
if (!(coding_history = av_malloc(size+1)))
if (!(coding_history = av_malloc(size + 1)))
return AVERROR(ENOMEM);
if ((ret = avio_read(s->pb, coding_history, size)) < 0)
@ -191,22 +194,22 @@ static int wav_parse_bext_tag(AVFormatContext *s, int64_t size)
}
static const AVMetadataConv wav_metadata_conv[] = {
{"description", "comment" },
{"originator", "encoded_by" },
{"origination_date", "date" },
{"origination_time", "creation_time"},
{0},
{ "description", "comment" },
{ "originator", "encoded_by" },
{ "origination_date", "date" },
{ "origination_time", "creation_time" },
{ 0 },
};
/* wav input */
static int wav_read_header(AVFormatContext *s)
{
int64_t size, av_uninit(data_size);
int64_t sample_count=0;
int64_t sample_count = 0;
int rf64;
uint32_t tag;
AVIOContext *pb = s->pb;
AVStream *st = NULL;
AVIOContext *pb = s->pb;
AVStream *st = NULL;
WAVDemuxContext *wav = s->priv_data;
int ret, got_fmt = 0;
int64_t next_tag_ofs, data_ofs = -1;
@ -229,8 +232,10 @@ static int wav_read_header(AVFormatContext *s)
if (size < 16)
return -1;
avio_rl64(pb); /* RIFF size */
data_size = avio_rl64(pb);
data_size = avio_rl64(pb);
sample_count = avio_rl64(pb);
if (data_size < 0 || sample_count < 0) {
av_log(s, AV_LOG_ERROR, "negative data_size and/or sample_count in "
"ds64: data_size = %"PRId64", sample_count = %"PRId64"\n",
@ -241,7 +246,7 @@ static int wav_read_header(AVFormatContext *s)
}
for (;;) {
size = next_tag(pb, &tag);
size = next_tag(pb, &tag);
next_tag_ofs = avio_tell(pb) + size;
if (pb->eof_reached)
@ -259,14 +264,15 @@ static int wav_read_header(AVFormatContext *s)
break;
case MKTAG('d', 'a', 't', 'a'):
if (!got_fmt) {
av_log(s, AV_LOG_ERROR, "found no 'fmt ' tag before the 'data' tag\n");
av_log(s, AV_LOG_ERROR,
"found no 'fmt ' tag before the 'data' tag\n");
return AVERROR_INVALIDDATA;
}
if (rf64) {
next_tag_ofs = wav->data_end = avio_tell(pb) + data_size;
} else {
data_size = size;
data_size = size;
next_tag_ofs = wav->data_end = size ? next_tag_ofs : INT64_MAX;
}
@ -278,11 +284,11 @@ static int wav_read_header(AVFormatContext *s)
if (!pb->seekable || (!rf64 && !size))
goto break_loop;
break;
case MKTAG('f','a','c','t'):
case MKTAG('f', 'a', 'c', 't'):
if (!sample_count)
sample_count = avio_rl32(pb);
break;
case MKTAG('b','e','x','t'):
case MKTAG('b', 'e', 'x', 't'):
if ((ret = wav_parse_bext_tag(s, size)) < 0)
return ret;
break;
@ -305,6 +311,7 @@ static int wav_read_header(AVFormatContext *s)
break;
}
}
break_loop:
if (data_ofs < 0) {
av_log(s, AV_LOG_ERROR, "no 'data' tag found\n");
@ -313,8 +320,11 @@ break_loop:
avio_seek(pb, data_ofs, SEEK_SET);
if (!sample_count && st->codec->channels && av_get_bits_per_sample(st->codec->codec_id))
sample_count = (data_size<<3) / (st->codec->channels * (uint64_t)av_get_bits_per_sample(st->codec->codec_id));
if (!sample_count && st->codec->channels &&
av_get_bits_per_sample(st->codec->codec_id))
sample_count = (data_size << 3) /
(st->codec->channels *
(uint64_t)av_get_bits_per_sample(st->codec->codec_id));
if (sample_count)
st->duration = sample_count;
@ -324,7 +334,8 @@ break_loop:
return 0;
}
/** Find chunk with w64 GUID by skipping over other chunks
/**
* Find chunk with w64 GUID by skipping over other chunks.
* @return the size of the found chunk
*/
static int64_t find_guid(AVIOContext *pb, const uint8_t guid1[16])
@ -344,13 +355,14 @@ static int64_t find_guid(AVIOContext *pb, const uint8_t guid1[16])
return -1;
}
static const uint8_t guid_data[16] = { 'd', 'a', 't', 'a',
0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A };
static const uint8_t guid_data[16] = {
'd', 'a', 't', 'a',
0xF3, 0xAC, 0xD3, 0x11,0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A
};
#define MAX_SIZE 4096
static int wav_read_packet(AVFormatContext *s,
AVPacket *pkt)
static int wav_read_packet(AVFormatContext *s, AVPacket *pkt)
{
int ret, size;
int64_t left;
@ -360,14 +372,14 @@ static int wav_read_packet(AVFormatContext *s,
st = s->streams[0];
left = wav->data_end - avio_tell(s->pb);
if (left <= 0){
if (left <= 0) {
if (CONFIG_W64_DEMUXER && wav->w64)
left = find_guid(s->pb, guid_data) - 24;
else
left = find_tag(s->pb, MKTAG('d', 'a', 't', 'a'));
if (left < 0)
return AVERROR_EOF;
wav->data_end= avio_tell(s->pb) + left;
wav->data_end = avio_tell(s->pb) + left;
}
size = MAX_SIZE;
@ -413,20 +425,25 @@ AVInputFormat ff_wav_demuxer = {
.read_packet = wav_read_packet,
.read_seek = wav_read_seek,
.flags = AVFMT_GENERIC_INDEX,
.codec_tag = (const AVCodecTag* const []){ ff_codec_wav_tags, 0 },
.codec_tag = (const AVCodecTag * const []) { ff_codec_wav_tags, 0 },
};
#endif /* CONFIG_WAV_DEMUXER */
#if CONFIG_W64_DEMUXER
static const uint8_t guid_riff[16] = { 'r', 'i', 'f', 'f',
0x2E, 0x91, 0xCF, 0x11, 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00 };
static const uint8_t guid_riff[16] = {
'r', 'i', 'f', 'f',
0x2E, 0x91, 0xCF, 0x11,0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00
};
static const uint8_t guid_wave[16] = { 'w', 'a', 'v', 'e',
0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A };
static const uint8_t guid_wave[16] = {
'w', 'a', 'v', 'e',
0xF3, 0xAC, 0xD3, 0x11,0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A
};
static const uint8_t guid_fmt [16] = { 'f', 'm', 't', ' ',
0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A };
static const uint8_t guid_fmt[16] = {
'f', 'm', 't', ' ',
0xF3, 0xAC, 0xD3, 0x11,0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A
};
static int w64_probe(AVProbeData *p)
{
@ -442,8 +459,8 @@ static int w64_probe(AVProbeData *p)
static int w64_read_header(AVFormatContext *s)
{
int64_t size;
AVIOContext *pb = s->pb;
WAVDemuxContext *wav = s->priv_data;
AVIOContext *pb = s->pb;
WAVDemuxContext *wav = s->priv_data;
AVStream *st;
uint8_t guid[16];
int ret;
@ -452,7 +469,8 @@ static int w64_read_header(AVFormatContext *s)
if (memcmp(guid, guid_riff, 16))
return -1;
if (avio_rl64(pb) < 16 + 8 + 16 + 8 + 16 + 8) /* riff + wave + fmt + sizes */
/* riff + wave + fmt + sizes */
if (avio_rl64(pb) < 16 + 8 + 16 + 8 + 16 + 8)
return -1;
avio_read(pb, guid, 16);
@ -501,6 +519,6 @@ AVInputFormat ff_w64_demuxer = {
.read_packet = wav_read_packet,
.read_seek = wav_read_seek,
.flags = AVFMT_GENERIC_INDEX,
.codec_tag = (const AVCodecTag* const []){ ff_codec_wav_tags, 0 },
.codec_tag = (const AVCodecTag * const []) { ff_codec_wav_tags, 0 },
};
#endif /* CONFIG_W64_DEMUXER */