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utvideoenc: drop step

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Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-08-22 15:40:17 +02:00
parent ba69eb5221
commit d79c87a697
1 changed files with 15 additions and 15 deletions
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30
libavcodec/utvideoenc.c
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@ -229,13 +229,13 @@ static void mangle_rgb_planes(uint8_t *dst[4], uint8_t *src, int step,
} }
/* Write data to a plane, no prediction applied */ /* Write data to a plane, no prediction applied */
static void write_plane(uint8_t *src, uint8_t *dst, int step, int stride, static void write_plane(uint8_t *src, uint8_t *dst, int stride,
int width, int height) int width, int height)
{ {
int i, j; int i, j;
for (j = 0; j < height; j++) { for (j = 0; j < height; j++) {
for (i = 0; i < width * step; i += step) for (i = 0; i < width; i++)
*dst++ = src[i]; *dst++ = src[i];
src += stride; src += stride;
@ -243,7 +243,7 @@ static void write_plane(uint8_t *src, uint8_t *dst, int step, int stride,
} }
/* Write data to a plane with left prediction */ /* Write data to a plane with left prediction */
static void left_predict(uint8_t *src, uint8_t *dst, int step, int stride, static void left_predict(uint8_t *src, uint8_t *dst, int stride,
int width, int height) int width, int height)
{ {
int i, j; int i, j;
@ -251,7 +251,7 @@ static void left_predict(uint8_t *src, uint8_t *dst, int step, int stride,
prev = 0x80; /* Set the initial value */ prev = 0x80; /* Set the initial value */
for (j = 0; j < height; j++) { for (j = 0; j < height; j++) {
for (i = 0; i < width * step; i += step) { for (i = 0; i < width; i++) {
*dst++ = src[i] - prev; *dst++ = src[i] - prev;
prev = src[i]; prev = src[i];
} }
@ -260,7 +260,7 @@ static void left_predict(uint8_t *src, uint8_t *dst, int step, int stride,
} }
/* Write data to a plane with median prediction */ /* Write data to a plane with median prediction */
static void median_predict(uint8_t *src, uint8_t *dst, int step, int stride, static void median_predict(uint8_t *src, uint8_t *dst, int stride,
int width, int height) int width, int height)
{ {
int i, j; int i, j;
@ -269,7 +269,7 @@ static void median_predict(uint8_t *src, uint8_t *dst, int step, int stride,
/* First line uses left neighbour prediction */ /* First line uses left neighbour prediction */
prev = 0x80; /* Set the initial value */ prev = 0x80; /* Set the initial value */
for (i = 0; i < width * step; i += step) { for (i = 0; i < width; i++) {
*dst++ = src[i] - prev; *dst++ = src[i] - prev;
prev = src[i]; prev = src[i];
} }
@ -286,7 +286,7 @@ static void median_predict(uint8_t *src, uint8_t *dst, int step, int stride,
C = src[-stride]; C = src[-stride];
*dst++ = src[0] - C; *dst++ = src[0] - C;
A = src[0]; A = src[0];
for (i = step; i < width * step; i += step) { for (i = 1; i < width; i++) {
B = src[i - stride]; B = src[i - stride];
*dst++ = src[i] - mid_pred(A, B, (A + B - C) & 0xFF); *dst++ = src[i] - mid_pred(A, B, (A + B - C) & 0xFF);
C = B; C = B;
@ -297,7 +297,7 @@ static void median_predict(uint8_t *src, uint8_t *dst, int step, int stride,
/* Rest of the coded part uses median prediction */ /* Rest of the coded part uses median prediction */
for (j = 2; j < height; j++) { for (j = 2; j < height; j++) {
for (i = 0; i < width * step; i += step) { for (i = 0; i < width; i++) {
B = src[i - stride]; B = src[i - stride];
*dst++ = src[i] - mid_pred(A, B, (A + B - C) & 0xFF); *dst++ = src[i] - mid_pred(A, B, (A + B - C) & 0xFF);
C = B; C = B;
@ -376,7 +376,7 @@ static int write_huff_codes(uint8_t *src, uint8_t *dst, int dst_size,
} }
static int encode_plane(AVCodecContext *avctx, uint8_t *src, static int encode_plane(AVCodecContext *avctx, uint8_t *src,
uint8_t *dst, int step, int stride, uint8_t *dst, int stride,
int width, int height, PutByteContext *pb) int width, int height, PutByteContext *pb)
{ {
UtvideoContext *c = avctx->priv_data; UtvideoContext *c = avctx->priv_data;
@ -396,7 +396,7 @@ static int encode_plane(AVCodecContext *avctx, uint8_t *src,
sstart = send; sstart = send;
send = height * (i + 1) / c->slices; send = height * (i + 1) / c->slices;
write_plane(src + sstart * stride, dst + sstart * width, write_plane(src + sstart * stride, dst + sstart * width,
step, stride, width, send - sstart); stride, width, send - sstart);
} }
break; break;
case PRED_LEFT: case PRED_LEFT:
@ -404,7 +404,7 @@ static int encode_plane(AVCodecContext *avctx, uint8_t *src,
sstart = send; sstart = send;
send = height * (i + 1) / c->slices; send = height * (i + 1) / c->slices;
left_predict(src + sstart * stride, dst + sstart * width, left_predict(src + sstart * stride, dst + sstart * width,
step, stride, width, send - sstart); stride, width, send - sstart);
} }
break; break;
case PRED_MEDIAN: case PRED_MEDIAN:
@ -412,7 +412,7 @@ static int encode_plane(AVCodecContext *avctx, uint8_t *src,
sstart = send; sstart = send;
send = height * (i + 1) / c->slices; send = height * (i + 1) / c->slices;
median_predict(src + sstart * stride, dst + sstart * width, median_predict(src + sstart * stride, dst + sstart * width,
step, stride, width, send - sstart); stride, width, send - sstart);
} }
break; break;
default: default:
@ -556,7 +556,7 @@ static int utvideo_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
case PIX_FMT_RGBA: case PIX_FMT_RGBA:
for (i = 0; i < c->planes; i++) { for (i = 0; i < c->planes; i++) {
ret = encode_plane(avctx, c->slice_buffer[i] + width, ret = encode_plane(avctx, c->slice_buffer[i] + width,
c->slice_buffer[i], 1, width, c->slice_buffer[i], width,
width, height, &pb); width, height, &pb);
if (ret) { if (ret) {
@ -567,7 +567,7 @@ static int utvideo_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
break; break;
case PIX_FMT_YUV422P: case PIX_FMT_YUV422P:
for (i = 0; i < c->planes; i++) { for (i = 0; i < c->planes; i++) {
ret = encode_plane(avctx, pic->data[i], c->slice_buffer[0], 1, ret = encode_plane(avctx, pic->data[i], c->slice_buffer[0],
pic->linesize[i], width >> !!i, height, &pb); pic->linesize[i], width >> !!i, height, &pb);
if (ret) { if (ret) {
@ -578,7 +578,7 @@ static int utvideo_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
break; break;
case PIX_FMT_YUV420P: case PIX_FMT_YUV420P:
for (i = 0; i < c->planes; i++) { for (i = 0; i < c->planes; i++) {
ret = encode_plane(avctx, pic->data[i], c->slice_buffer[0], 1, ret = encode_plane(avctx, pic->data[i], c->slice_buffer[0],
pic->linesize[i], width >> !!i, height >> !!i, pic->linesize[i], width >> !!i, height >> !!i,
&pb); &pb);