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authorMichael Niedermayer <michaelni@gmx.at>2005-05-17 11:12:04 +0000
committerMichael Niedermayer <michaelni@gmx.at>2005-05-17 11:12:04 +0000
commit8b6103da0f0f2ac73cf2698e8f26d7b989a564ac (patch)
treee3de9b1ac794d351fc0654ff54e8180bff9b893d
parentea191e08d6cefad09bfb1e6d9317874dfd4080be (diff)
downloadffmpeg-8b6103da0f0f2ac73cf2698e8f26d7b989a564ac.tar.gz
porting vp3 idct over to lavc idct api
Originally committed as revision 4257 to svn://svn.ffmpeg.org/ffmpeg/trunk
-rw-r--r--libavcodec/avcodec.h1
-rw-r--r--libavcodec/dsputil.c9
-rw-r--r--libavcodec/dsputil.h14
-rw-r--r--libavcodec/vp3.c34
-rw-r--r--libavcodec/vp3dsp.c154
5 files changed, 136 insertions, 76 deletions
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index b9fccc4cff..f849f6b562 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -1177,6 +1177,7 @@ typedef struct AVCodecContext {
#define FF_IDCT_SH4 9
#define FF_IDCT_SIMPLEARM 10
#define FF_IDCT_H264 11
+#define FF_IDCT_VP3 12
/**
* slice count.
diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index a19f79d316..5505dff78e 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -3643,6 +3643,11 @@ void dsputil_init(DSPContext* c, AVCodecContext *avctx)
c->idct_add= ff_jref_idct_add;
c->idct = j_rev_dct;
c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM;
+ }else if(avctx->idct_algo==FF_IDCT_VP3){
+ c->idct_put= ff_vp3_idct_put_c;
+ c->idct_add= ff_vp3_idct_add_c;
+ c->idct = ff_vp3_idct_c;
+ c->idct_permutation_type= FF_NO_IDCT_PERM;
}else{ //accurate/default
c->idct_put= simple_idct_put;
c->idct_add= simple_idct_add;
@@ -3653,10 +3658,6 @@ void dsputil_init(DSPContext* c, AVCodecContext *avctx)
c->h264_idct_add= ff_h264_idct_add_c;
- /* VP3 DSP support */
- c->vp3_dsp_init = vp3_dsp_init_c;
- c->vp3_idct = vp3_idct_c;
-
c->get_pixels = get_pixels_c;
c->diff_pixels = diff_pixels_c;
c->put_pixels_clamped = put_pixels_clamped_c;
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h
index 57547431ed..002e284639 100644
--- a/libavcodec/dsputil.h
+++ b/libavcodec/dsputil.h
@@ -68,17 +68,9 @@ extern uint32_t squareTbl[512];
extern uint8_t cropTbl[256 + 2 * MAX_NEG_CROP];
/* VP3 DSP functions */
-void vp3_dsp_init_c(void);
-void vp3_idct_c(int16_t *input_data, int16_t *dequant_matrix,
- int coeff_count, DCTELEM *output_data);
-
-void vp3_dsp_init_mmx(void);
-void vp3_idct_mmx(int16_t *input_data, int16_t *dequant_matrix,
- int coeff_count, DCTELEM *output_data);
-
-void vp3_dsp_init_sse2(void);
-void vp3_idct_sse2(int16_t *input_data, int16_t *dequant_matrix,
- int coeff_count, DCTELEM *output_data);
+void ff_vp3_idct_c(DCTELEM *block/* align 16*/);
+void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
+void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
/* minimum alignment rules ;)
if u notice errors in the align stuff, need more alignment for some asm code for some cpu
diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index 7923229dc1..da4f531d29 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -2053,7 +2053,7 @@ static void render_fragments(Vp3DecodeContext *s,
int height,
int plane /* 0 = Y, 1 = U, 2 = V */)
{
- int x, y;
+ int x, y, j;
int m, n;
int i = first_fragment;
int16_t *dequantizer;
@@ -2188,21 +2188,32 @@ av_log(s->avctx, AV_LOG_ERROR, " help! got beefy vector! (%X, %X)\n", motion_x,
i, s->all_fragments[i].coding_method,
s->all_fragments[i].coeffs[0], dequantizer[0]);
+ if(s->avctx->idct_algo==FF_IDCT_VP3){
+ for (j = 0; j < 64; j++) {
+ s->all_fragments[i].coeffs[j] *= dequantizer[j];
+ }
+ }else{
+ for (j = 0; j < 64; j++) {
+ s->all_fragments[i].coeffs[j]= (dequantizer[j] * s->all_fragments[i].coeffs[j] + 2) >> 2;
+ }
+ }
+
/* invert DCT and place (or add) in final output */
- s->dsp.vp3_idct(s->all_fragments[i].coeffs,
- dequantizer,
- s->all_fragments[i].coeff_count,
- output_samples);
- memset(s->all_fragments[i].coeffs, 0, 64*sizeof(DCTELEM));
+
if (s->all_fragments[i].coding_method == MODE_INTRA) {
- s->dsp.put_signed_pixels_clamped(output_samples,
+ if(s->avctx->idct_algo!=FF_IDCT_VP3)
+ s->all_fragments[i].coeffs[0] += 128<<3;
+ s->dsp.idct_put(
output_plane + s->all_fragments[i].first_pixel,
- stride);
+ stride,
+ s->all_fragments[i].coeffs);
} else {
- s->dsp.add_pixels_clamped(output_samples,
+ s->dsp.idct_add(
output_plane + s->all_fragments[i].first_pixel,
- stride);
+ stride,
+ s->all_fragments[i].coeffs);
}
+ memset(s->all_fragments[i].coeffs, 0, 64*sizeof(DCTELEM));
debug_idct("block after idct_%s():\n",
(s->all_fragments[i].coding_method == MODE_INTRA)?
@@ -2496,8 +2507,9 @@ static int vp3_decode_init(AVCodecContext *avctx)
#endif
avctx->pix_fmt = PIX_FMT_YUV420P;
avctx->has_b_frames = 0;
+ if(avctx->idct_algo==FF_IDCT_AUTO)
+ avctx->idct_algo=FF_IDCT_VP3;
dsputil_init(&s->dsp, avctx);
- s->dsp.vp3_dsp_init();
/* initialize to an impossible value which will force a recalculation
* in the first frame decode */
diff --git a/libavcodec/vp3dsp.c b/libavcodec/vp3dsp.c
index 8cf77a25af..015f57b570 100644
--- a/libavcodec/vp3dsp.c
+++ b/libavcodec/vp3dsp.c
@@ -36,29 +36,17 @@
#define xC6S2 25080
#define xC7S1 12785
-void vp3_dsp_init_c(void)
+static always_inline void idct(uint8_t *dst, int stride, int16_t *input, int type)
{
- /* nop */
-}
-
-void vp3_idct_c(int16_t *input_data, int16_t *dequant_matrix,
- int coeff_count, int16_t *output_data)
-{
- int32_t dequantized_data[64];
- int32_t *ip = dequantized_data;
- int16_t *op = output_data;
+ int16_t *ip = input;
+ uint8_t *cm = cropTbl + MAX_NEG_CROP;
- int32_t A_, B_, C_, D_, _Ad, _Bd, _Cd, _Dd, E_, F_, G_, H_;
- int32_t _Ed, _Gd, _Add, _Bdd, _Fd, _Hd;
- int32_t t1, t2;
+ int A_, B_, C_, D_, _Ad, _Bd, _Cd, _Dd, E_, F_, G_, H_;
+ int _Ed, _Gd, _Add, _Bdd, _Fd, _Hd;
+ int t1, t2;
int i, j;
- /* de-zigzag and dequantize */
- for (i = 0; i < coeff_count; i++) {
- dequantized_data[i] = dequant_matrix[i] * input_data[i];
- }
-
/* Inverse DCT on the rows now */
for (i = 0; i < 8; i++) {
/* Check for non-zero values */
@@ -131,28 +119,28 @@ void vp3_idct_c(int16_t *input_data, int16_t *dequant_matrix,
_Hd = _Bd + H_;
/* Final sequence of operations over-write original inputs. */
- ip[0] = (int16_t)((_Gd + _Cd ) >> 0);
- ip[7] = (int16_t)((_Gd - _Cd ) >> 0);
+ ip[0] = _Gd + _Cd ;
+ ip[7] = _Gd - _Cd ;
- ip[1] = (int16_t)((_Add + _Hd ) >> 0);
- ip[2] = (int16_t)((_Add - _Hd ) >> 0);
+ ip[1] = _Add + _Hd;
+ ip[2] = _Add - _Hd;
- ip[3] = (int16_t)((_Ed + _Dd ) >> 0);
- ip[4] = (int16_t)((_Ed - _Dd ) >> 0);
+ ip[3] = _Ed + _Dd ;
+ ip[4] = _Ed - _Dd ;
- ip[5] = (int16_t)((_Fd + _Bdd ) >> 0);
- ip[6] = (int16_t)((_Fd - _Bdd ) >> 0);
+ ip[5] = _Fd + _Bdd;
+ ip[6] = _Fd - _Bdd;
}
ip += 8; /* next row */
}
-
- ip = dequantized_data;
+
+ ip = input;
for ( i = 0; i < 8; i++) {
/* Check for non-zero values (bitwise or faster than ||) */
- if ( ip[0 * 8] | ip[1 * 8] | ip[2 * 8] | ip[3 * 8] |
+ if ( ip[1 * 8] | ip[2 * 8] | ip[3 * 8] |
ip[4 * 8] | ip[5 * 8] | ip[6 * 8] | ip[7 * 8] ) {
t1 = (int32_t)(xC1S7 * ip[1*8]);
@@ -222,37 +210,103 @@ void vp3_idct_c(int16_t *input_data, int16_t *dequant_matrix,
_Fd = F_ - _Ad;
_Hd = _Bd + H_;
+ if(type==1){ //HACK
+ _Gd += 16*128;
+ _Add+= 16*128;
+ _Ed += 16*128;
+ _Fd += 16*128;
+ }
_Gd += IdctAdjustBeforeShift;
_Add += IdctAdjustBeforeShift;
_Ed += IdctAdjustBeforeShift;
_Fd += IdctAdjustBeforeShift;
/* Final sequence of operations over-write original inputs. */
- op[0*8] = (int16_t)((_Gd + _Cd ) >> 4);
- op[7*8] = (int16_t)((_Gd - _Cd ) >> 4);
-
- op[1*8] = (int16_t)((_Add + _Hd ) >> 4);
- op[2*8] = (int16_t)((_Add - _Hd ) >> 4);
-
- op[3*8] = (int16_t)((_Ed + _Dd ) >> 4);
- op[4*8] = (int16_t)((_Ed - _Dd ) >> 4);
-
- op[5*8] = (int16_t)((_Fd + _Bdd ) >> 4);
- op[6*8] = (int16_t)((_Fd - _Bdd ) >> 4);
+ if(type==0){
+ ip[0*8] = (_Gd + _Cd ) >> 4;
+ ip[7*8] = (_Gd - _Cd ) >> 4;
+
+ ip[1*8] = (_Add + _Hd ) >> 4;
+ ip[2*8] = (_Add - _Hd ) >> 4;
+
+ ip[3*8] = (_Ed + _Dd ) >> 4;
+ ip[4*8] = (_Ed - _Dd ) >> 4;
+
+ ip[5*8] = (_Fd + _Bdd ) >> 4;
+ ip[6*8] = (_Fd - _Bdd ) >> 4;
+ }else if(type==1){
+ dst[0*stride] = cm[(_Gd + _Cd ) >> 4];
+ dst[7*stride] = cm[(_Gd - _Cd ) >> 4];
+
+ dst[1*stride] = cm[(_Add + _Hd ) >> 4];
+ dst[2*stride] = cm[(_Add - _Hd ) >> 4];
+
+ dst[3*stride] = cm[(_Ed + _Dd ) >> 4];
+ dst[4*stride] = cm[(_Ed - _Dd ) >> 4];
+
+ dst[5*stride] = cm[(_Fd + _Bdd ) >> 4];
+ dst[6*stride] = cm[(_Fd - _Bdd ) >> 4];
+ }else{
+ dst[0*stride] = cm[dst[0*stride] + ((_Gd + _Cd ) >> 4)];
+ dst[7*stride] = cm[dst[7*stride] + ((_Gd - _Cd ) >> 4)];
+
+ dst[1*stride] = cm[dst[1*stride] + ((_Add + _Hd ) >> 4)];
+ dst[2*stride] = cm[dst[2*stride] + ((_Add - _Hd ) >> 4)];
+
+ dst[3*stride] = cm[dst[3*stride] + ((_Ed + _Dd ) >> 4)];
+ dst[4*stride] = cm[dst[4*stride] + ((_Ed - _Dd ) >> 4)];
+
+ dst[5*stride] = cm[dst[5*stride] + ((_Fd + _Bdd ) >> 4)];
+ dst[6*stride] = cm[dst[6*stride] + ((_Fd - _Bdd ) >> 4)];
+ }
} else {
-
- op[0*8] = 0;
- op[7*8] = 0;
- op[1*8] = 0;
- op[2*8] = 0;
- op[3*8] = 0;
- op[4*8] = 0;
- op[5*8] = 0;
- op[6*8] = 0;
+ if(type==0){
+ ip[0*8] =
+ ip[1*8] =
+ ip[2*8] =
+ ip[3*8] =
+ ip[4*8] =
+ ip[5*8] =
+ ip[6*8] =
+ ip[7*8] = ((xC4S4 * ip[0*8] + (IdctAdjustBeforeShift<<16))>>20);
+ }else if(type==1){
+ dst[0*stride]=
+ dst[1*stride]=
+ dst[2*stride]=
+ dst[3*stride]=
+ dst[4*stride]=
+ dst[5*stride]=
+ dst[6*stride]=
+ dst[7*stride]= 128 + ((xC4S4 * ip[0*8] + (IdctAdjustBeforeShift<<16))>>20);
+ }else{
+ if(ip[0*8]){
+ int v= ((xC4S4 * ip[0*8] + (IdctAdjustBeforeShift<<16))>>20);
+ dst[0*stride] = cm[dst[0*stride] + v];
+ dst[1*stride] = cm[dst[1*stride] + v];
+ dst[2*stride] = cm[dst[2*stride] + v];
+ dst[3*stride] = cm[dst[3*stride] + v];
+ dst[4*stride] = cm[dst[4*stride] + v];
+ dst[5*stride] = cm[dst[5*stride] + v];
+ dst[6*stride] = cm[dst[6*stride] + v];
+ dst[7*stride] = cm[dst[7*stride] + v];
+ }
+ }
}
ip++; /* next column */
- op++;
+ dst++;
}
}
+
+void ff_vp3_idct_c(DCTELEM *block/* align 16*/){
+ idct(NULL, 0, block, 0);
+}
+
+void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/){
+ idct(dest, line_size, block, 1);
+}
+
+void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/){
+ idct(dest, line_size, block, 2);
+}