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Code Issues Releases Activity

pcm: K&R formatting cosmetics

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Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
Aneesh Dogra 2012-03-30 21:03:02 +05:30 committed by Diego Biurrun
parent 835a893bcb
commit 6d21f49879
1 changed files with 136 additions and 129 deletions
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123
libavcodec/pcm.c
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@ -24,8 +24,8 @@
* PCM codecs
*/
#include "avcodec.h"
#include "libavutil/common.h" /* for av_reverse */
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"
#include "pcm_tablegen.h"
@ -35,7 +35,7 @@
static av_cold int pcm_encode_init(AVCodecContext *avctx)
{
avctx->frame_size = 0;
switch(avctx->codec->id) {
switch (avctx->codec->id) {
case CODEC_ID_PCM_ALAW:
pcm_alaw_tableinit();
break;
@ -47,8 +47,8 @@ static av_cold int pcm_encode_init(AVCodecContext *avctx)
}
avctx->bits_per_coded_sample = av_get_bits_per_sample(avctx->codec->id);
avctx->block_align = avctx->channels * avctx->bits_per_coded_sample/8;
avctx->coded_frame= avcodec_alloc_frame();
avctx->block_align = avctx->channels * avctx->bits_per_coded_sample / 8;
avctx->coded_frame = avcodec_alloc_frame();
if (!avctx->coded_frame)
return AVERROR(ENOMEM);
@ -73,10 +73,10 @@ static av_cold int pcm_encode_close(AVCodecContext *avctx)
* @param offset Sample value offset
*/
#define ENCODE(type, endian, src, dst, n, shift, offset) \
samples_##type = (const type*) src; \
for(;n>0;n--) { \
register type v = (*samples_##type++ >> shift) + offset; \
bytestream_put_##endian(&dst, v); \
samples_ ## type = (const type *) src; \
for (; n > 0; n--) { \
register type v = (*samples_ ## type++ >> shift) + offset; \
bytestream_put_ ## endian(&dst, v); \
}
static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
@ -92,7 +92,7 @@ static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
const uint16_t *samples_uint16_t;
const uint32_t *samples_uint32_t;
sample_size = av_get_bits_per_sample(avctx->codec->id)/8;
sample_size = av_get_bits_per_sample(avctx->codec->id) / 8;
n = frame->nb_samples * avctx->channels;
samples = (const short *)frame->data[0];
@ -102,7 +102,7 @@ static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
}
dst = avpkt->data;
switch(avctx->codec->id) {
switch (avctx->codec->id) {
case CODEC_ID_PCM_U32LE:
ENCODE(uint32_t, le32, samples, dst, n, 0, 0x80000000)
break;
@ -122,7 +122,7 @@ static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
ENCODE(uint32_t, be24, samples, dst, n, 8, 0x800000)
break;
case CODEC_ID_PCM_S24DAUD:
for(;n>0;n--) {
for (; n > 0; n--) {
uint32_t tmp = av_reverse[(*samples >> 8) & 0xff] +
(av_reverse[*samples & 0xff] << 8);
tmp <<= 4; // sync flags would go here
@ -138,7 +138,7 @@ static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
break;
case CODEC_ID_PCM_S8:
srcu8 = frame->data[0];
for(;n>0;n--) {
for (; n > 0; n--) {
v = *srcu8++;
*dst++ = v - 128;
}
@ -175,17 +175,17 @@ static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
case CODEC_ID_PCM_S16LE:
#endif /* HAVE_BIGENDIAN */
case CODEC_ID_PCM_U8:
memcpy(dst, samples, n*sample_size);
dst += n*sample_size;
memcpy(dst, samples, n * sample_size);
dst += n * sample_size;
break;
case CODEC_ID_PCM_ALAW:
for(;n>0;n--) {
for (; n > 0; n--) {
v = *samples++;
*dst++ = linear_to_alaw[(v + 32768) >> 2];
}
break;
case CODEC_ID_PCM_MULAW:
for(;n>0;n--) {
for (; n > 0; n--) {
v = *samples++;
*dst++ = linear_to_ulaw[(v + 32768) >> 2];
}
@ -203,7 +203,7 @@ typedef struct PCMDecode {
short table[256];
} PCMDecode;
static av_cold int pcm_decode_init(AVCodecContext * avctx)
static av_cold int pcm_decode_init(AVCodecContext *avctx)
{
PCMDecode *s = avctx->priv_data;
int i;
@ -213,13 +213,13 @@ static av_cold int pcm_decode_init(AVCodecContext * avctx)
return AVERROR(EINVAL);
}
switch(avctx->codec->id) {
switch (avctx->codec->id) {
case CODEC_ID_PCM_ALAW:
for(i=0;i<256;i++)
for (i = 0; i < 256; i++)
s->table[i] = alaw2linear(i);
break;
case CODEC_ID_PCM_MULAW:
for(i=0;i<256;i++)
for (i = 0; i < 256; i++)
s->table[i] = ulaw2linear(i);
break;
default:
@ -248,9 +248,9 @@ static av_cold int pcm_decode_init(AVCodecContext * avctx)
* @param offset Sample value offset
*/
#define DECODE(size, endian, src, dst, n, shift, offset) \
for(;n>0;n--) { \
uint##size##_t v = bytestream_get_##endian(&src); \
AV_WN##size##A(dst, (v - offset) << shift); \
for (; n > 0; n--) { \
uint ## size ## _t v = bytestream_get_ ## endian(&src); \
AV_WN ## size ## A(dst, (v - offset) << shift); \
dst += size / 8; \
}
@ -264,7 +264,7 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
uint8_t *samples;
int32_t *dst_int32_t;
sample_size = av_get_bits_per_sample(avctx->codec_id)/8;
sample_size = av_get_bits_per_sample(avctx->codec_id) / 8;
/* av_get_bits_per_sample returns 0 for CODEC_ID_PCM_DVD */
samples_per_block = 1;
@ -290,15 +290,15 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
n = avctx->channels * sample_size;
if(n && buf_size % n){
if (n && buf_size % n) {
if (buf_size < n) {
av_log(avctx, AV_LOG_ERROR, "invalid PCM packet\n");
return -1;
}else
} else
buf_size -= buf_size % n;
}
n = buf_size/sample_size;
n = buf_size / sample_size;
/* get output buffer */
s->frame.nb_samples = n * samples_per_block / avctx->channels;
@ -308,7 +308,7 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
}
samples = s->frame.data[0];
switch(avctx->codec->id) {
switch (avctx->codec->id) {
case CODEC_ID_PCM_U32LE:
DECODE(32, le32, src, samples, n, 0, 0x80000000)
break;
@ -328,7 +328,7 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
DECODE(32, be24, src, samples, n, 8, 0x800000)
break;
case CODEC_ID_PCM_S24DAUD:
for(;n>0;n--) {
for (; n > 0; n--) {
uint32_t v = bytestream_get_be24(&src);
v >>= 4; // sync flags are here
AV_WN16A(samples, av_reverse[(v >> 8) & 0xff] +
@ -340,10 +340,10 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
{
const uint8_t *src2[MAX_CHANNELS];
n /= avctx->channels;
for(c=0;c<avctx->channels;c++)
src2[c] = &src[c*n*2];
for(;n>0;n--)
for(c=0;c<avctx->channels;c++) {
for (c = 0; c < avctx->channels; c++)
src2[c] = &src[c * n * 2];
for (; n > 0; n--)
for (c = 0; c < avctx->channels; c++) {
AV_WN16A(samples, bytestream_get_le16(&src2[c]));
samples += 2;
}
@ -356,9 +356,8 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
DECODE(16, be16, src, samples, n, 0, 0x8000)
break;
case CODEC_ID_PCM_S8:
for(;n>0;n--) {
for (; n > 0; n--)
*samples++ = *src++ + 128;
}
break;
#if HAVE_BIGENDIAN
case CODEC_ID_PCM_F64LE:
@ -392,7 +391,7 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
case CODEC_ID_PCM_S16LE:
#endif /* HAVE_BIGENDIAN */
case CODEC_ID_PCM_U8:
memcpy(samples, src, n*sample_size);
memcpy(samples, src, n * sample_size);
break;
case CODEC_ID_PCM_ZORK:
for (; n > 0; n--) {
@ -404,7 +403,7 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
break;
case CODEC_ID_PCM_ALAW:
case CODEC_ID_PCM_MULAW:
for(;n>0;n--) {
for (; n > 0; n--) {
AV_WN16A(samples, s->table[*src++]);
samples += 2;
}
@ -418,10 +417,10 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
case 20:
while (n--) {
c = avctx->channels;
src8 = src + 4*c;
src8 = src + 4 * c;
while (c--) {
*dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8 &0xf0) << 8);
*dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++ &0x0f) << 12);
*dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8 & 0xf0) << 8);
*dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++ & 0x0f) << 12);
}
src = src8;
}
@ -429,7 +428,7 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
case 24:
while (n--) {
c = avctx->channels;
src8 = src + 4*c;
src8 = src + 4 * c;
while (c--) {
*dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++) << 8);
*dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++) << 8);
@ -446,18 +445,23 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
const uint8_t *src8;
dst_int32_t = (int32_t *)s->frame.data[0];
n /= avctx->channels;
//unpack and de-planerize
// unpack and de-planarize
for (i = 0; i < n; i++) {
for (c = 0, src8 = src + i*5; c < avctx->channels; c++, src8 += n*5) {
//extract low 20 bits and expand to 32 bits
*dst_int32_t++ = (src8[2] << 28) | (src8[1] << 20) | (src8[0] << 12) |
((src8[2] & 0xF) << 8) | src8[1];
for (c = 0, src8 = src + i * 5; c < avctx->channels; c++, src8 += n * 5) {
// extract low 20 bits and expand to 32 bits
*dst_int32_t++ = (src8[2] << 28) |
(src8[1] << 20) |
(src8[0] << 12) |
((src8[2] & 0xF) << 8) |
src8[1];
}
for (c = 0, src8 = src + i*5; c < avctx->channels; c++, src8 += n*5) {
//extract high 20 bits and expand to 32 bits
*dst_int32_t++ = (src8[4] << 24) | (src8[3] << 16) |
((src8[2] & 0xF0) << 8) | (src8[4] << 4) | (src8[3] >> 4);
for (c = 0, src8 = src + i * 5; c < avctx->channels; c++, src8 += n * 5) {
// extract high 20 bits and expand to 32 bits
*dst_int32_t++ = (src8[4] << 24) |
(src8[3] << 16) |
((src8[2] & 0xF0) << 8) |
(src8[4] << 4) |
(src8[3] >> 4);
}
}
break;
@ -473,7 +477,7 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
}
#if CONFIG_ENCODERS
#define PCM_ENCODER(id_,sample_fmt_,name_,long_name_) \
#define PCM_ENCODER(id_, sample_fmt_, name_, long_name_) \
AVCodec ff_ ## name_ ## _encoder = { \
.name = #name_, \
.type = AVMEDIA_TYPE_AUDIO, \
@ -482,15 +486,16 @@ AVCodec ff_ ## name_ ## _encoder = { \
.encode2 = pcm_encode_frame, \
.close = pcm_encode_close, \
.capabilities = CODEC_CAP_VARIABLE_FRAME_SIZE, \
.sample_fmts = (const enum AVSampleFormat[]){sample_fmt_,AV_SAMPLE_FMT_NONE}, \
.sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \
AV_SAMPLE_FMT_NONE }, \
.long_name = NULL_IF_CONFIG_SMALL(long_name_), \
}
#else
#define PCM_ENCODER(id,sample_fmt_,name,long_name_)
#define PCM_ENCODER(id, sample_fmt_, name, long_name_)
#endif
#if CONFIG_DECODERS
#define PCM_DECODER(id_,sample_fmt_,name_,long_name_) \
#define PCM_DECODER(id_, sample_fmt_, name_, long_name_) \
AVCodec ff_ ## name_ ## _decoder = { \
.name = #name_, \
.type = AVMEDIA_TYPE_AUDIO, \
@ -499,15 +504,17 @@ AVCodec ff_ ## name_ ## _decoder = { \
.init = pcm_decode_init, \
.decode = pcm_decode_frame, \
.capabilities = CODEC_CAP_DR1, \
.sample_fmts = (const enum AVSampleFormat[]){sample_fmt_,AV_SAMPLE_FMT_NONE}, \
.sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \
AV_SAMPLE_FMT_NONE }, \
.long_name = NULL_IF_CONFIG_SMALL(long_name_), \
}
#else
#define PCM_DECODER(id,sample_fmt_,name,long_name_)
#define PCM_DECODER(id, sample_fmt_, name, long_name_)
#endif
#define PCM_CODEC(id, sample_fmt_, name, long_name_) \
PCM_ENCODER(id,sample_fmt_,name,long_name_); PCM_DECODER(id,sample_fmt_,name,long_name_)
PCM_ENCODER(id, sample_fmt_, name, long_name_); \
PCM_DECODER(id, sample_fmt_, name, long_name_)
/* Note: Do not forget to add new entries to the Makefile as well. */
PCM_CODEC (CODEC_ID_PCM_ALAW, AV_SAMPLE_FMT_S16, pcm_alaw, "PCM A-law");