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Code Issues Releases Activity

Changed indexing in libopenjpeg to shorten lines

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This commit is contained in:
Michael Bradshaw 2012-01-19 23:15:56 +01:00 committed by Carl Eugen Hoyos
parent df42dd7323
commit de07355026
1 changed files with 22 additions and 4 deletions
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26
libavcodec/libopenjpegenc.c
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@ -206,6 +206,8 @@ static int libopenjpeg_copy_packed8(AVCodecContext *avctx, AVFrame *frame, opj_i
int compno;
int x;
int y;
int image_index;
int frame_index;
const int numcomps = image->numcomps;
for (compno = 0; compno < numcomps; ++compno) {
@ -217,8 +219,11 @@ static int libopenjpeg_copy_packed8(AVCodecContext *avctx, AVFrame *frame, opj_i
for (compno = 0; compno < numcomps; ++compno) {
for (y = 0; y < avctx->height; ++y) {
image_index = y * avctx->width;
frame_index = y * frame->linesize[0] + compno;
for (x = 0; x < avctx->width; ++x) {
image->comps[compno].data[y * avctx->width + x] = frame->data[0][y * frame->linesize[0] + x * numcomps + compno];
image->comps[compno].data[image_index++] = frame->data[0][frame_index];
frame_index += numcomps;
}
}
}
@ -231,6 +236,8 @@ static int libopenjpeg_copy_packed16(AVCodecContext *avctx, AVFrame *frame, opj_
int compno;
int x;
int y;
int image_index;
int frame_index;
const int numcomps = image->numcomps;
uint16_t *frame_ptr = (uint16_t*)frame->data[0];
@ -243,8 +250,11 @@ static int libopenjpeg_copy_packed16(AVCodecContext *avctx, AVFrame *frame, opj_
for (compno = 0; compno < numcomps; ++compno) {
for (y = 0; y < avctx->height; ++y) {
image_index = y * avctx->width;
frame_index = y * (frame->linesize[0] / 2) + compno;
for (x = 0; x < avctx->width; ++x) {
image->comps[compno].data[y * avctx->width + x] = frame_ptr[y * frame->linesize[0] / 2 + x * numcomps + compno];
image->comps[compno].data[image_index++] = frame_ptr[frame_index];
frame_index += numcomps;
}
}
}
@ -259,6 +269,8 @@ static int libopenjpeg_copy_unpacked8(AVCodecContext *avctx, AVFrame *frame, opj
int y;
int width;
int height;
int image_index;
int frame_index;
const int numcomps = image->numcomps;
for (compno = 0; compno < numcomps; ++compno) {
@ -272,8 +284,10 @@ static int libopenjpeg_copy_unpacked8(AVCodecContext *avctx, AVFrame *frame, opj
width = avctx->width / image->comps[compno].dx;
height = avctx->height / image->comps[compno].dy;
for (y = 0; y < height; ++y) {
image_index = y * width;
frame_index = y * frame->linesize[compno];
for (x = 0; x < width; ++x) {
image->comps[compno].data[y * width + x] = frame->data[compno][y * frame->linesize[compno] + x];
image->comps[compno].data[image_index++] = frame->data[compno][frame_index++];
}
}
}
@ -288,6 +302,8 @@ static int libopenjpeg_copy_unpacked16(AVCodecContext *avctx, AVFrame *frame, op
int y;
int width;
int height;
int image_index;
int frame_index;
const int numcomps = image->numcomps;
uint16_t *frame_ptr;
@ -303,8 +319,10 @@ static int libopenjpeg_copy_unpacked16(AVCodecContext *avctx, AVFrame *frame, op
height = avctx->height / image->comps[compno].dy;
frame_ptr = (uint16_t*)frame->data[compno];
for (y = 0; y < height; ++y) {
image_index = y * width;
frame_index = y * (frame->linesize[compno] / 2);
for (x = 0; x < width; ++x) {
image->comps[compno].data[y * width + x] = frame_ptr[y * (frame->linesize[compno] / 2) + x];
image->comps[compno].data[image_index++] = frame_ptr[frame_index++];
}
}
}