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Merge commit '1df0b061621b10edde87e3ab7ea83aed381c574f'

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* commit '1df0b061621b10edde87e3ab7ea83aed381c574f':
  nuv: Reuse the DSPContext from RTJpegContext

Conflicts:
	libavcodec/nuv.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2014-03-22 21:58:04 +01:00
parent 82c742377a 1df0b06162
commit 32da2fd422
3 changed files with 27 additions and 23 deletions
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29
libavcodec/rtjpeg.c
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@@ -121,7 +121,7 @@ int ff_rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f,
if (res < 0) \
return res; \
if (res > 0) \
c->dsp->idct_put(dst, stride, block); \
c->dsp.idct_put(dst, stride, block); \
} while (0)
int16_t *block = c->block;
BLOCK(c->lquant, y1, f->linesize[0]);
@@ -148,7 +148,6 @@ int ff_rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f,
/**
* @brief initialize an RTJpegContext, may be called multiple times
* @param c context to initialize
* @param dsp specifies the idct to use for decoding
* @param width width of image, will be rounded down to the nearest multiple
* of 16 for decoding
* @param height height of image, will be rounded down to the nearest multiple
@@ -156,21 +155,29 @@ int ff_rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f,
* @param lquant luma quantization table to use
* @param cquant chroma quantization table to use
*/
void ff_rtjpeg_decode_init(RTJpegContext *c, DSPContext *dsp,
int width, int height,
void ff_rtjpeg_decode_init(RTJpegContext *c, int width, int height,
const uint32_t *lquant, const uint32_t *cquant) {
int i;
c->dsp = dsp;
for (i = 0; i < 64; i++) {
int z = ff_zigzag_direct[i];
int p = c->dsp->idct_permutation[i];
z = ((z << 3) | (z >> 3)) & 63; // rtjpeg uses a transposed variant
// permute the scan and quantization tables for the chosen idct
c->scan[i] = c->dsp->idct_permutation[z];
int p = c->dsp.idct_permutation[i];
c->lquant[p] = lquant[i];
c->cquant[p] = cquant[i];
}
c->w = width;
c->h = height;
}
void ff_rtjpeg_init(RTJpegContext *c, AVCodecContext *avctx)
{
int i;
ff_dsputil_init(&c->dsp, avctx);
for (i = 0; i < 64; i++) {
int z = ff_zigzag_direct[i];
z = ((z << 3) | (z >> 3)) & 63; // rtjpeg uses a transposed variant
// permute the scan and quantization tables for the chosen idct
c->scan[i] = c->dsp.idct_permutation[z];
}
}