*/
/**
-* @file vc1dsp.c
+* @file libavcodec/vc1dsp.c
* VC-1 and WMV3 decoder
*
*/
}
}
+/**
+ * VC-1 in-loop deblocking filter for one line
+ * @param src source block type
+ * @param stride block stride
+ * @param pq block quantizer
+ * @return whether other 3 pairs should be filtered or not
+ * @see 8.6
+ */
+static av_always_inline int vc1_filter_line(uint8_t* src, int stride, int pq){
+ uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
+
+ int a0 = (2*(src[-2*stride] - src[ 1*stride]) - 5*(src[-1*stride] - src[ 0*stride]) + 4) >> 3;
+ int a0_sign = a0 >> 31; /* Store sign */
+ a0 = (a0 ^ a0_sign) - a0_sign; /* a0 = FFABS(a0); */
+ if(a0 < pq){
+ int a1 = FFABS((2*(src[-4*stride] - src[-1*stride]) - 5*(src[-3*stride] - src[-2*stride]) + 4) >> 3);
+ int a2 = FFABS((2*(src[ 0*stride] - src[ 3*stride]) - 5*(src[ 1*stride] - src[ 2*stride]) + 4) >> 3);
+ if(a1 < a0 || a2 < a0){
+ int clip = src[-1*stride] - src[ 0*stride];
+ int clip_sign = clip >> 31;
+ clip = ((clip ^ clip_sign) - clip_sign)>>1;
+ if(clip){
+ int a3 = FFMIN(a1, a2);
+ int d = 5 * (a3 - a0);
+ int d_sign = (d >> 31);
+ d = ((d ^ d_sign) - d_sign) >> 3;
+ d_sign ^= a0_sign;
+
+ if( d_sign ^ clip_sign )
+ d = 0;
+ else{
+ d = FFMIN(d, clip);
+ d = (d ^ d_sign) - d_sign; /* Restore sign */
+ src[-1*stride] = cm[src[-1*stride] - d];
+ src[ 0*stride] = cm[src[ 0*stride] + d];
+ }
+ return 1;
+ }
+ }
+ }
+ return 0;
+}
+
+/**
+ * VC-1 in-loop deblocking filter
+ * @param src source block type
+ * @param step distance between horizontally adjacent elements
+ * @param stride distance between vertically adjacent elements
+ * @param len edge length to filter (4 or 8 pixels)
+ * @param pq block quantizer
+ * @see 8.6
+ */
+static inline void vc1_loop_filter(uint8_t* src, int step, int stride, int len, int pq)
+{
+ int i;
+ int filt3;
+
+ for(i = 0; i < len; i += 4){
+ filt3 = vc1_filter_line(src + 2*step, stride, pq);
+ if(filt3){
+ vc1_filter_line(src + 0*step, stride, pq);
+ vc1_filter_line(src + 1*step, stride, pq);
+ vc1_filter_line(src + 3*step, stride, pq);
+ }
+ src += step * 4;
+ }
+}
+
+static void vc1_v_loop_filter4_c(uint8_t *src, int stride, int pq)
+{
+ vc1_loop_filter(src, 1, stride, 4, pq);
+}
+
+static void vc1_h_loop_filter4_c(uint8_t *src, int stride, int pq)
+{
+ vc1_loop_filter(src, stride, 1, 4, pq);
+}
+
+static void vc1_v_loop_filter8_c(uint8_t *src, int stride, int pq)
+{
+ vc1_loop_filter(src, 1, stride, 8, pq);
+}
+
+static void vc1_h_loop_filter8_c(uint8_t *src, int stride, int pq)
+{
+ vc1_loop_filter(src, stride, 1, 8, pq);
+}
+
+static void vc1_v_loop_filter16_c(uint8_t *src, int stride, int pq)
+{
+ vc1_loop_filter(src, 1, stride, 16, pq);
+}
+
+static void vc1_h_loop_filter16_c(uint8_t *src, int stride, int pq)
+{
+ vc1_loop_filter(src, stride, 1, 16, pq);
+}
/** Do inverse transform on 8x8 block
*/
+static void vc1_inv_trans_8x8_dc_c(uint8_t *dest, int linesize, DCTELEM *block)
+{
+ int i;
+ int dc = block[0];
+ const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
+ dc = (3 * dc + 1) >> 1;
+ dc = (3 * dc + 16) >> 5;
+ for(i = 0; i < 8; i++){
+ dest[0] = cm[dest[0]+dc];
+ dest[1] = cm[dest[1]+dc];
+ dest[2] = cm[dest[2]+dc];
+ dest[3] = cm[dest[3]+dc];
+ dest[4] = cm[dest[4]+dc];
+ dest[5] = cm[dest[5]+dc];
+ dest[6] = cm[dest[6]+dc];
+ dest[7] = cm[dest[7]+dc];
+ dest += linesize;
+ }
+}
+
static void vc1_inv_trans_8x8_c(DCTELEM block[64])
{
int i;
/** Do inverse transform on 8x4 part of block
*/
+static void vc1_inv_trans_8x4_dc_c(uint8_t *dest, int linesize, DCTELEM *block)
+{
+ int i;
+ int dc = block[0];
+ const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
+ dc = ( 3 * dc + 1) >> 1;
+ dc = (17 * dc + 64) >> 7;
+ for(i = 0; i < 4; i++){
+ dest[0] = cm[dest[0]+dc];
+ dest[1] = cm[dest[1]+dc];
+ dest[2] = cm[dest[2]+dc];
+ dest[3] = cm[dest[3]+dc];
+ dest[4] = cm[dest[4]+dc];
+ dest[5] = cm[dest[5]+dc];
+ dest[6] = cm[dest[6]+dc];
+ dest[7] = cm[dest[7]+dc];
+ dest += linesize;
+ }
+}
+
static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, DCTELEM *block)
{
int i;
/** Do inverse transform on 4x8 parts of block
*/
+static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, int linesize, DCTELEM *block)
+{
+ int i;
+ int dc = block[0];
+ const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
+ dc = (17 * dc + 4) >> 3;
+ dc = (12 * dc + 64) >> 7;
+ for(i = 0; i < 8; i++){
+ dest[0] = cm[dest[0]+dc];
+ dest[1] = cm[dest[1]+dc];
+ dest[2] = cm[dest[2]+dc];
+ dest[3] = cm[dest[3]+dc];
+ dest += linesize;
+ }
+}
+
static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, DCTELEM *block)
{
int i;
/** Do inverse transform on 4x4 part of block
*/
+static void vc1_inv_trans_4x4_dc_c(uint8_t *dest, int linesize, DCTELEM *block)
+{
+ int i;
+ int dc = block[0];
+ const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
+ dc = (17 * dc + 4) >> 3;
+ dc = (17 * dc + 64) >> 7;
+ for(i = 0; i < 4; i++){
+ dest[0] = cm[dest[0]+dc];
+ dest[1] = cm[dest[1]+dc];
+ dest[2] = cm[dest[2]+dc];
+ dest[3] = cm[dest[3]+dc];
+ dest += linesize;
+ }
+}
+
static void vc1_inv_trans_4x4_c(uint8_t *dest, int linesize, DCTELEM *block)
{
int i;
/** Function used to do motion compensation with bicubic interpolation
*/
-static void vc1_mspel_mc(uint8_t *dst, const uint8_t *src, int stride, int hmode, int vmode, int rnd)
-{
- int i, j;
-
- if (vmode) { /* Horizontal filter to apply */
- int r;
-
- if (hmode) { /* Vertical filter to apply, output to tmp */
- static const int shift_value[] = { 0, 5, 1, 5 };
- int shift = (shift_value[hmode]+shift_value[vmode])>>1;
- int16_t tmp[11*8], *tptr = tmp;
-
- r = (1<<(shift-1)) + rnd-1;
-
- src -= 1;
- for(j = 0; j < 8; j++) {
- for(i = 0; i < 11; i++)
- tptr[i] = (vc1_mspel_ver_filter_16bits(src + i, stride, vmode)+r)>>shift;
- src += stride;
- tptr += 11;
- }
-
- r = 64-rnd;
- tptr = tmp+1;
- for(j = 0; j < 8; j++) {
- for(i = 0; i < 8; i++)
- dst[i] = av_clip_uint8((vc1_mspel_hor_filter_16bits(tptr + i, 1, hmode)+r)>>7);
- dst += stride;
- tptr += 11;
- }
+#define VC1_MSPEL_MC(OP, OPNAME)\
+static void OPNAME ## vc1_mspel_mc(uint8_t *dst, const uint8_t *src, int stride, int hmode, int vmode, int rnd)\
+{\
+ int i, j;\
+\
+ if (vmode) { /* Horizontal filter to apply */\
+ int r;\
+\
+ if (hmode) { /* Vertical filter to apply, output to tmp */\
+ static const int shift_value[] = { 0, 5, 1, 5 };\
+ int shift = (shift_value[hmode]+shift_value[vmode])>>1;\
+ int16_t tmp[11*8], *tptr = tmp;\
+\
+ r = (1<<(shift-1)) + rnd-1;\
+\
+ src -= 1;\
+ for(j = 0; j < 8; j++) {\
+ for(i = 0; i < 11; i++)\
+ tptr[i] = (vc1_mspel_ver_filter_16bits(src + i, stride, vmode)+r)>>shift;\
+ src += stride;\
+ tptr += 11;\
+ }\
+\
+ r = 64-rnd;\
+ tptr = tmp+1;\
+ for(j = 0; j < 8; j++) {\
+ for(i = 0; i < 8; i++)\
+ OP(dst[i], (vc1_mspel_hor_filter_16bits(tptr + i, 1, hmode)+r)>>7);\
+ dst += stride;\
+ tptr += 11;\
+ }\
+\
+ return;\
+ }\
+ else { /* No horizontal filter, output 8 lines to dst */\
+ r = 1-rnd;\
+\
+ for(j = 0; j < 8; j++) {\
+ for(i = 0; i < 8; i++)\
+ OP(dst[i], vc1_mspel_filter(src + i, stride, vmode, r));\
+ src += stride;\
+ dst += stride;\
+ }\
+ return;\
+ }\
+ }\
+\
+ /* Horizontal mode with no vertical mode */\
+ for(j = 0; j < 8; j++) {\
+ for(i = 0; i < 8; i++)\
+ OP(dst[i], vc1_mspel_filter(src + i, 1, hmode, rnd));\
+ dst += stride;\
+ src += stride;\
+ }\
+}
- return;
- }
- else { /* No horizontal filter, output 8 lines to dst */
- r = 1-rnd;
-
- for(j = 0; j < 8; j++) {
- for(i = 0; i < 8; i++)
- dst[i] = av_clip_uint8(vc1_mspel_filter(src + i, stride, vmode, r));
- src += stride;
- dst += stride;
- }
- return;
- }
- }
+#define op_put(a, b) a = av_clip_uint8(b)
+#define op_avg(a, b) a = (a + av_clip_uint8(b) + 1) >> 1
- /* Horizontal mode with no vertical mode */
- for(j = 0; j < 8; j++) {
- for(i = 0; i < 8; i++)
- dst[i] = av_clip_uint8(vc1_mspel_filter(src + i, 1, hmode, rnd));
- dst += stride;
- src += stride;
- }
-}
+VC1_MSPEL_MC(op_put, put_)
+VC1_MSPEL_MC(op_avg, avg_)
/* pixel functions - really are entry points to vc1_mspel_mc */
/* this one is defined in dsputil.c */
void ff_put_vc1_mspel_mc00_c(uint8_t *dst, const uint8_t *src, int stride, int rnd);
+void ff_avg_vc1_mspel_mc00_c(uint8_t *dst, const uint8_t *src, int stride, int rnd);
#define PUT_VC1_MSPEL(a, b)\
static void put_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, const uint8_t *src, int stride, int rnd) { \
- vc1_mspel_mc(dst, src, stride, a, b, rnd); \
+ put_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
+}\
+static void avg_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, const uint8_t *src, int stride, int rnd) { \
+ avg_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
}
PUT_VC1_MSPEL(1, 0)
PUT_VC1_MSPEL(2, 3)
PUT_VC1_MSPEL(3, 3)
-void ff_vc1dsp_init(DSPContext* dsp, AVCodecContext *avctx) {
+av_cold void ff_vc1dsp_init(DSPContext* dsp, AVCodecContext *avctx) {
dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_c;
dsp->vc1_inv_trans_4x8 = vc1_inv_trans_4x8_c;
dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_c;
dsp->vc1_inv_trans_4x4 = vc1_inv_trans_4x4_c;
+ dsp->vc1_inv_trans_8x8_dc = vc1_inv_trans_8x8_dc_c;
+ dsp->vc1_inv_trans_4x8_dc = vc1_inv_trans_4x8_dc_c;
+ dsp->vc1_inv_trans_8x4_dc = vc1_inv_trans_8x4_dc_c;
+ dsp->vc1_inv_trans_4x4_dc = vc1_inv_trans_4x4_dc_c;
dsp->vc1_h_overlap = vc1_h_overlap_c;
dsp->vc1_v_overlap = vc1_v_overlap_c;
+ dsp->vc1_v_loop_filter4 = vc1_v_loop_filter4_c;
+ dsp->vc1_h_loop_filter4 = vc1_h_loop_filter4_c;
+ dsp->vc1_v_loop_filter8 = vc1_v_loop_filter8_c;
+ dsp->vc1_h_loop_filter8 = vc1_h_loop_filter8_c;
+ dsp->vc1_v_loop_filter16 = vc1_v_loop_filter16_c;
+ dsp->vc1_h_loop_filter16 = vc1_h_loop_filter16_c;
dsp->put_vc1_mspel_pixels_tab[ 0] = ff_put_vc1_mspel_mc00_c;
dsp->put_vc1_mspel_pixels_tab[ 1] = put_vc1_mspel_mc10_c;
dsp->put_vc1_mspel_pixels_tab[13] = put_vc1_mspel_mc13_c;
dsp->put_vc1_mspel_pixels_tab[14] = put_vc1_mspel_mc23_c;
dsp->put_vc1_mspel_pixels_tab[15] = put_vc1_mspel_mc33_c;
+
+ dsp->avg_vc1_mspel_pixels_tab[ 0] = ff_avg_vc1_mspel_mc00_c;
+ dsp->avg_vc1_mspel_pixels_tab[ 1] = avg_vc1_mspel_mc10_c;
+ dsp->avg_vc1_mspel_pixels_tab[ 2] = avg_vc1_mspel_mc20_c;
+ dsp->avg_vc1_mspel_pixels_tab[ 3] = avg_vc1_mspel_mc30_c;
+ dsp->avg_vc1_mspel_pixels_tab[ 4] = avg_vc1_mspel_mc01_c;
+ dsp->avg_vc1_mspel_pixels_tab[ 5] = avg_vc1_mspel_mc11_c;
+ dsp->avg_vc1_mspel_pixels_tab[ 6] = avg_vc1_mspel_mc21_c;
+ dsp->avg_vc1_mspel_pixels_tab[ 7] = avg_vc1_mspel_mc31_c;
+ dsp->avg_vc1_mspel_pixels_tab[ 8] = avg_vc1_mspel_mc02_c;
+ dsp->avg_vc1_mspel_pixels_tab[ 9] = avg_vc1_mspel_mc12_c;
+ dsp->avg_vc1_mspel_pixels_tab[10] = avg_vc1_mspel_mc22_c;
+ dsp->avg_vc1_mspel_pixels_tab[11] = avg_vc1_mspel_mc32_c;
+ dsp->avg_vc1_mspel_pixels_tab[12] = avg_vc1_mspel_mc03_c;
+ dsp->avg_vc1_mspel_pixels_tab[13] = avg_vc1_mspel_mc13_c;
+ dsp->avg_vc1_mspel_pixels_tab[14] = avg_vc1_mspel_mc23_c;
+ dsp->avg_vc1_mspel_pixels_tab[15] = avg_vc1_mspel_mc33_c;
}
projects / ffmpeg / blobdiff