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vcr1: cosmetics: K&R prettyprinting, typos, parentheses, dead code, comments

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This commit is contained in:
Diego Biurrun 2012-04-08 13:05:17 +02:00
parent 59cbc4eee2
commit db1e403cfb
1 changed files with 71 additions and 71 deletions
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62
libavcodec/vcr1.c
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@ -21,15 +21,12 @@
/**
* @file
* ati vcr1 codec.
* ATI VCR1 codec
*/
#include "avcodec.h"
#include "dsputil.h"
//#undef NDEBUG
//#include <assert.h>
/* Disable the encoder. */
#undef CONFIG_VCR1_ENCODER
#define CONFIG_VCR1_ENCODER 0
@ -41,9 +38,8 @@ typedef struct VCR1Context{
int offset[4];
} VCR1Context;
static int decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
AVPacket *avpkt)
static int decode_frame(AVCodecContext *avctx, void *data,
int *data_size, AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
@ -65,7 +61,7 @@ static int decode_frame(AVCodecContext *avctx,
p->key_frame = 1;
for (i = 0; i < 16; i++) {
a->delta[i]= *(bytestream++);
a->delta[i] = *bytestream++;
bytestream++;
}
@ -78,18 +74,18 @@ static int decode_frame(AVCodecContext *avctx,
uint8_t *cr = &a->picture.data[2][(y >> 2) * a->picture.linesize[2]];
for (i = 0; i < 4; i++)
a->offset[i]= *(bytestream++);
a->offset[i] = *bytestream++;
offset = a->offset[0] - a->delta[bytestream[2] & 0xF];
for (x = 0; x < avctx->width; x += 4) {
luma[0]=( offset += a->delta[ bytestream[2]&0xF ]);
luma[1]=( offset += a->delta[ bytestream[2]>>4 ]);
luma[2]=( offset += a->delta[ bytestream[0]&0xF ]);
luma[3]=( offset += a->delta[ bytestream[0]>>4 ]);
luma[0] = offset += a->delta[bytestream[2] & 0xF];
luma[1] = offset += a->delta[bytestream[2] >> 4];
luma[2] = offset += a->delta[bytestream[0] & 0xF];
luma[3] = offset += a->delta[bytestream[0] >> 4];
luma += 4;
*(cb++) = bytestream[3];
*(cr++) = bytestream[1];
*cb++ = bytestream[3];
*cr++ = bytestream[1];
bytestream += 4;
}
@ -97,14 +93,14 @@ static int decode_frame(AVCodecContext *avctx,
offset = a->offset[y & 3] - a->delta[bytestream[2] & 0xF];
for (x = 0; x < avctx->width; x += 8) {
luma[0]=( offset += a->delta[ bytestream[2]&0xF ]);
luma[1]=( offset += a->delta[ bytestream[2]>>4 ]);
luma[2]=( offset += a->delta[ bytestream[3]&0xF ]);
luma[3]=( offset += a->delta[ bytestream[3]>>4 ]);
luma[4]=( offset += a->delta[ bytestream[0]&0xF ]);
luma[5]=( offset += a->delta[ bytestream[0]>>4 ]);
luma[6]=( offset += a->delta[ bytestream[1]&0xF ]);
luma[7]=( offset += a->delta[ bytestream[1]>>4 ]);
luma[0] = offset += a->delta[bytestream[2] & 0xF];
luma[1] = offset += a->delta[bytestream[2] >> 4];
luma[2] = offset += a->delta[bytestream[3] & 0xF];
luma[3] = offset += a->delta[bytestream[3] >> 4];
luma[4] = offset += a->delta[bytestream[0] & 0xF];
luma[5] = offset += a->delta[bytestream[0] >> 4];
luma[6] = offset += a->delta[bytestream[1] & 0xF];
luma[7] = offset += a->delta[bytestream[1] >> 4];
luma += 8;
bytestream += 4;
}
@ -118,7 +114,9 @@ static int decode_frame(AVCodecContext *avctx,
}
#if CONFIG_VCR1_ENCODER
static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
static int encode_frame(AVCodecContext *avctx, unsigned char *buf,
int buf_size, void *data)
{
VCR1Context *const a = avctx->priv_data;
AVFrame *pict = data;
AVFrame *const p = &a->picture;
@ -138,15 +136,16 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
}
#endif
static av_cold void common_init(AVCodecContext *avctx){
static av_cold void common_init(AVCodecContext *avctx)
{
VCR1Context *const a = avctx->priv_data;
avctx->coded_frame = &a->picture;
a->avctx = avctx;
}
static av_cold int decode_init(AVCodecContext *avctx){
static av_cold int decode_init(AVCodecContext *avctx)
{
common_init(avctx);
avctx->pix_fmt = PIX_FMT_YUV410P;
@ -154,7 +153,8 @@ static av_cold int decode_init(AVCodecContext *avctx){
return 0;
}
static av_cold int decode_end(AVCodecContext *avctx){
static av_cold int decode_end(AVCodecContext *avctx)
{
VCR1Context *s = avctx->priv_data;
if (s->picture.data[0])
@ -164,8 +164,8 @@ static av_cold int decode_end(AVCodecContext *avctx){
}
#if CONFIG_VCR1_ENCODER
static av_cold int encode_init(AVCodecContext *avctx){
static av_cold int encode_init(AVCodecContext *avctx)
{
common_init(avctx);
return 0;
@ -194,4 +194,4 @@ AVCodec ff_vcr1_encoder = {
.encode = encode_frame,
.long_name = NULL_IF_CONFIG_SMALL("ATI VCR1"),
};
#endif
#endif /* CONFIG_VCR1_ENCODER */