mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-20 23:36:38 +00:00
57ce0321c8
Original commit message from CVS:
Added a tarkin encoder/decoder plugin.
I moved the tarking CVS code in here temporarily until they have a
library (hence this plugin is in ext)
test with:
./gst-launch filesrc location=/opt/data/shihad.mpg ! mpegdemux video_00! { queue ! mpeg2dec ! colorspace ! tarkinenc bitrate=3000 ! disksink location=out.ogg }
./gst-launch filesrc location=out.ogg ! tarkindec ! colorspace ! xvideosink
391 lines
9.8 KiB
C
391 lines
9.8 KiB
C
#include "mem.h"
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#include <assert.h>
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#include "wavelet.h"
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static
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void fwd_analyze_1 (const TYPE *x, TYPE *d, int stride, int n)
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{
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int i, k=n/2;
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for (i=0; i<k; i++)
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d[i] = x[(2*i+1)*stride] - x[2*i*stride];
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}
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static
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void fwd_synthesize_1 (const TYPE *x, TYPE *s, const TYPE *d, int stride, int n)
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{
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int i, k=n/2;
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for (i=0; i<k; i++)
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s[i*stride] = x[2*i*stride] + d[i] / 2;
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if (n & 1)
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s[k*stride] = x[2*k*stride] + d[k-1] / 2;
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}
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static
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void inv_analyze_1 (TYPE *x, const TYPE *d, int stride, int n)
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{
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int i, k=n/2;
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for (i=0; i<k; i++)
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x[(2*i+1)*stride] = d[i] + x[2*i*stride];
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}
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static
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void inv_synthesize_1 (TYPE *x, const TYPE *s, const TYPE *d, int stride, int n)
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{
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int i, k=n/2;
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for (i=0; i<k; i++)
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x[2*i*stride] = s[i] - d[i] / 2;
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if (n & 1)
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x[2*k*stride] = s[k] - d[k-1] / 2;
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}
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static
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void fwd_analyze_2 (const TYPE *x, TYPE *d, int stride, int n)
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{
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int i, k=n/2;
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if (n & 1) {
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for (i=0; i<k; i++)
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d[i] = x[(2*i+1)*stride] - (x[2*i*stride] + x[(2*i+2)*stride]) / 2;
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} else {
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for (i=0; i<k-1; i++)
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d[i] = x[(2*i+1)*stride] - (x[2*i*stride] + x[(2*i+2)*stride]) / 2;
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d[k-1] = x[(n-1)*stride] - x[(n-2)*stride];
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}
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}
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static
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void fwd_synthesize_2 (const TYPE *x, TYPE *s, const TYPE *d, int stride, int n)
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{
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int i, k=n/2;
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s[0] = x[0] + d[1] / 2;
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for (i=1; i<k; i++)
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s[i*stride] = x[2*i*stride] + (d[i-1] + d[i]) / 4;
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if (n & 1)
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s[k*stride] = x[2*k*stride] + d[k-1] / 2;
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}
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static inline
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void inv_analyze_2 (TYPE *x, const TYPE *d, int stride, int n)
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{
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int i, k=n/2;
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if (n & 1) {
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for (i=0; i<k; i++)
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x[(2*i+1)*stride] = d[i] + (x[2*i*stride] + x[(2*i+2)*stride]) / 2;
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} else {
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for (i=0; i<k-1; i++)
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x[(2*i+1)*stride] = d[i] + (x[2*i*stride] + x[(2*i+2)*stride]) / 2;
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x[(n-1)*stride] = d[k-1] + x[(n-2)*stride];
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}
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}
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static inline
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void inv_synthesize_2 (TYPE *x, const TYPE *s, const TYPE *d, int stride, int n)
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{
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int i, k=n/2;
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x[0] = s[0] - d[1] / 2;
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for (i=1; i<k; i++)
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x[2*i*stride] = s[i] - (d[i-1] + d[i]) / 4;
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if (n & 1)
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x[2*k*stride] = s[k] - d[k-1] / 2;
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}
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static
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void fwd_analyze_4 (const TYPE *x, TYPE *d, int stride, int n)
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{
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int i, k=n/2;
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d[0] = x[stride] - (x[0] + x[2*stride]) / 2;
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if (n & 1) {
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for (i=1; i<k-1; i++)
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d[i] = x[(2*i+1)*stride]
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- ((uint32_t) 9 * (x[2*i*stride] + x[(2*i+2)*stride])
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- (x[(2*i-2)*stride] + x[(2*i+4)*stride])) / 16;
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if (k > 1)
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d[k-1] = x[(2*k-1)*stride] - (x[(2*k-2)*stride] + x[2*k*stride]) / 2;
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} else {
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for (i=1; i<k-2; i++)
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d[i] = x[(2*i+1)*stride]
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- ((uint32_t) 9 * (x[2*i*stride] + x[(2*i+2)*stride])
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- (x[(2*i-2)*stride] + x[(2*i+4)*stride])) / 16;
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if (k > 2)
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d[k-2] = x[(2*k-3)*stride] - (x[(2*k-4)*stride]
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+ x[(2*k-2)*stride]) / 2;
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if (k > 1)
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d[k-1] = x[(n-1)*stride] - x[(n-2)*stride];
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}
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}
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static
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void fwd_synthesize_4 (const TYPE *x, TYPE *s, const TYPE *d, int stride, int n)
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{
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int i, k=n/2;
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s[0] = x[0] + d[1] / 2;
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if (k > 1)
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s[stride] = x[2*stride] + (d[0] + d[1]) / 4;
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for (i=2; i<k-1; i++)
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s[i*stride] = x[2*i*stride]
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+ ((uint32_t) 9 * (d[i-1] + d[i]) - (d[i-2] + d[i+1])) / 32;
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if (k > 2)
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s[(k-1)*stride] = x[(2*k-2)*stride] + (d[k-2] + d[k-1]) / 4;
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if (n & 1)
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s[k*stride] = x[2*k*stride] + d[k-1] / 2;
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}
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static
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void inv_analyze_4 (TYPE *x, const TYPE *d, int stride, int n)
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{
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int i, k=n/2;
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x[stride] = d[0] + (x[0] + x[2*stride]) / 2;
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if (n & 1) {
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for (i=1; i<k-1; i++)
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x[(2*i+1)*stride] = d[i]
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+ ((uint32_t) 9 * (x[2*i*stride] + x[(2*i+2)*stride])
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- (x[(2*i-2)*stride] + x[(2*i+4)*stride])) / 16;
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if (k > 1)
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x[(2*k-1)*stride] = d[k-1] + (x[(2*k-2)*stride] + x[2*k*stride]) / 2;
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} else {
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for (i=1; i<k-2; i++)
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x[(2*i+1)*stride] = d[i]
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+ (9 * (x[2*i*stride] + x[(2*i+2)*stride])
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- (x[(2*i-2)*stride] + x[(2*i+4)*stride])) / 16;
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if (k > 2)
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x[(2*k-3)*stride] = d[k-2] + (x[(2*k-4)*stride]
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+ x[(2*k-2)*stride]) / 2;
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if (k > 1)
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x[(n-1)*stride] = d[k-1] + x[(n-2)*stride];
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}
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}
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static
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void inv_synthesize_4 (TYPE *x, const TYPE *s, const TYPE *d, int stride, int n)
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{
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int i, k=n/2;
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x[0] = s[0] - d[1] / 2;
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if (k > 1)
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x[2*stride] = s[1] - (d[0] + d[1]) / 4;
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for (i=2; i<k-1; i++)
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x[2*i*stride] = s[i] - ((uint32_t) 9 * (d[i-1] + d[i])
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- (d[i-2] + d[i+1])) / 32;
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if (k > 2)
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x[(2*k-2)*stride] = s[k-1] - (d[k-2] + d[k-1]) / 4;
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if (n & 1)
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x[2*k*stride] = s[k] - d[k-1] / 2;
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}
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static inline
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void copyback_d (TYPE *x, const TYPE *d, int stride, int n)
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{
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int i, j, k=n/2;
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for (i=n-k, j=0; i<n; i++, j++)
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x [i*stride] = d[j];
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}
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static inline
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void copy_s_d (const TYPE *x, TYPE *s_d, int stride, int n)
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{
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int i;
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for (i=0; i<n; i++)
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s_d[i] = x [i*stride];
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}
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typedef
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void (*FwdSFnc) (const TYPE *x, TYPE *s, const TYPE *d, int stride, int n);
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typedef
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void (*FwdAFnc) (const TYPE *x, TYPE *d, int stride, int n);
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typedef
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void (*InvSFnc) (TYPE *x, const TYPE *s, const TYPE *d, int stride, int n);
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typedef
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void (*InvAFnc) (TYPE *x, const TYPE *d, int stride, int n);
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static FwdSFnc fwd_synthesize [] = { NULL, fwd_synthesize_1, fwd_synthesize_2,
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NULL, fwd_synthesize_4 };
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static FwdAFnc fwd_analyze [] = { NULL, fwd_analyze_1, fwd_analyze_2,
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NULL, fwd_analyze_4 };
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static InvSFnc inv_synthesize [] = { NULL, inv_synthesize_1, inv_synthesize_2,
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NULL, inv_synthesize_4 };
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static InvAFnc inv_analyze [] = { NULL, inv_analyze_1, inv_analyze_2,
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NULL, inv_analyze_4 };
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static inline
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void fwd_xform (TYPE *scratchbuf, TYPE *data, int stride, int n,
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int a_moments, int s_moments)
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{
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TYPE *x = data;
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TYPE *d = scratchbuf;
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TYPE *s = data;
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assert (a_moments == 1 || a_moments == 2 || a_moments == 4);
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assert (s_moments == 1 || s_moments == 2 || s_moments == 4);
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/* XXX FIXME: Ugly hack to work around */
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/* the short-row bug in high */
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/* order xform functions */
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if (n < 9)
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a_moments = s_moments = 2;
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if (n < 5)
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a_moments = s_moments = 1;
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fwd_analyze [a_moments] (x, d, stride, n);
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fwd_synthesize [s_moments] (x, s, d, stride, n);
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copyback_d (x, d, stride, n);
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}
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static inline
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void inv_xform (TYPE *scratchbuf, TYPE *data, int stride, int n,
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int a_moments, int s_moments)
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{
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int k=n/2;
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TYPE *x = data;
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TYPE *s = scratchbuf;
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TYPE *d = scratchbuf + n - k;
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assert (a_moments == 1 || a_moments == 2 || a_moments == 4);
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assert (s_moments == 1 || s_moments == 2 || s_moments == 4);
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/* XXX FIXME: Ugly hack to work around */
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/* the short-row bug in high */
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/* order xform functions */
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if (n < 9)
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a_moments = s_moments = 2;
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if (n < 5)
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a_moments = s_moments = 1;
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copy_s_d (data, scratchbuf, stride, n);
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inv_synthesize [s_moments] (x, s, d, stride, n);
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inv_analyze [a_moments] (x, d, stride, n);
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}
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void wavelet_3d_buf_fwd_xform (Wavelet3DBuf* buf, int a_moments, int s_moments)
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{
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int level;
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for (level=buf->scales-1; level>0; level--) {
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uint32_t w = buf->w[level];
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uint32_t h = buf->h[level];
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uint32_t f = buf->f[level];
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if (w > 1) {
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int row, frame;
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for (frame=0; frame<f; frame++) {
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for (row=0; row<h; row++) {
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TYPE *data = buf->data + (frame * buf->height + row) * buf->width;
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fwd_xform (buf->scratchbuf, data, 1, w, a_moments, s_moments);
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}
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}
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}
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if (h > 1) {
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int col, frame;
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for (frame=0; frame<f; frame++) {
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for (col=0; col<w; col++) {
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TYPE *data = buf->data + frame * buf->width * buf->height + col;
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fwd_xform (buf->scratchbuf, data, buf->width, h,
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a_moments, s_moments);
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}
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}
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}
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if (f > 1) {
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int i, j;
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for (j=0; j<h; j++) {
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for (i=0; i<w; i++) {
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TYPE *data = buf->data + j*buf->width + i;
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fwd_xform (buf->scratchbuf, data, buf->width * buf->height, f,
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a_moments, s_moments);
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}
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}
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}
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}
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}
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void wavelet_3d_buf_inv_xform (Wavelet3DBuf* buf, int a_moments, int s_moments)
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{
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int level;
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for (level=1; level<buf->scales; level++) {
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uint32_t w = buf->w[level];
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uint32_t h = buf->h[level];
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uint32_t f = buf->f[level];
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if (f > 1) {
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int i, j;
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for (j=0; j<h; j++) {
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for (i=0; i<w; i++) {
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TYPE *data = buf->data + j*buf->width + i;
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inv_xform (buf->scratchbuf, data, buf->width * buf->height, f,
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a_moments, s_moments);
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}
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}
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}
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if (h > 1) {
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int col, frame;
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for (frame=0; frame<f; frame++) {
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for (col=0; col<w; col++) {
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TYPE *data = buf->data + frame * buf->width * buf->height + col;
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inv_xform (buf->scratchbuf, data, buf->width, h,
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a_moments, s_moments);
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}
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}
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}
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if (w > 1) {
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int row, frame;
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for (frame=0; frame<f; frame++) {
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for (row=0; row<h; row++) {
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TYPE *data = buf->data + (frame * buf->height + row) * buf->width;
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inv_xform (buf->scratchbuf, data, 1, w, a_moments, s_moments);
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}
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}
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}
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}
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}
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