enum BMVTypes {
BMV_TYPE_BACKWARD,
BMV_TYPE_FORWARD,
- BMV_TYPE_INTERPOLATED = 3 //XXX: ??
+ BMV_TYPE_INTERPOLATED
};
//@}
{ TT_8X8, TT_4X8, TT_4X4, TT_8X4_BOTTOM, TT_4X8_RIGHT, TT_4X8_LEFT, TT_8X4, TT_8X4_TOP }
};
+static const int ttfrm_to_tt[4] = { TT_8X8, TT_8X4, TT_4X8, TT_4X4 };
+
/** MV P mode - the 5th element is only used for mode 1 */
static const uint8_t mv_pmode_table[2][5] = {
{ MV_PMODE_1MV_HPEL_BILIN, MV_PMODE_1MV, MV_PMODE_1MV_HPEL, MV_PMODE_INTENSITY_COMP, MV_PMODE_MIXED_MV },
{ MV_PMODE_1MV, MV_PMODE_MIXED_MV, MV_PMODE_1MV_HPEL, MV_PMODE_INTENSITY_COMP, MV_PMODE_1MV_HPEL_BILIN }
};
+static const uint8_t mv_pmode_table2[2][4] = {
+ { MV_PMODE_1MV_HPEL_BILIN, MV_PMODE_1MV, MV_PMODE_1MV_HPEL, MV_PMODE_MIXED_MV },
+ { MV_PMODE_1MV, MV_PMODE_MIXED_MV, MV_PMODE_1MV_HPEL, MV_PMODE_1MV_HPEL_BILIN }
+};
/** One more frame type */
#define BI_TYPE 7
CS_HIGH_RATE_INTER
};
+/** @name Overlap conditions for Advanced Profile */
+//@{
+enum COTypes {
+ CONDOVER_NONE = 0,
+ CONDOVER_ALL,
+ CONDOVER_SELECT
+};
+//@}
+
+
/** The VC1 Context
* @fixme Change size wherever another size is more efficient
* Many members are only used for Advanced Profile
int matrix_coef; ///< 8bits, Color primaries->YCbCr transform matrix
int hrd_param_flag; ///< Presence of Hypothetical Reference
///< Decoder parameters
+ int psf; ///< Progressive Segmented Frame
//@}
/** Sequence header data for all Profiles
//@}
int ttfrm; ///< Transform type info present at frame level
uint8_t ttmbf; ///< Transform type flag
- int ttmb; ///< Transform type
uint8_t ttblk4x4; ///< Value of ttblk which indicates a 4x4 transform
int codingset; ///< index of current table set from 11.8 to use for luma block decoding
int codingset2; ///< index of current table set from 11.8 to use for chroma block decoding
int pqindex; ///< raw pqindex used in coding set selection
int a_avail, c_avail;
+ uint8_t *mb_type_base, *mb_type[3];
/** Luma compensation parameters */
*/
uint8_t mvrange;
uint8_t pquantizer; ///< Uniform (over sequence) quantizer in use
- uint8_t *previous_line_cbpcy; ///< To use for predicted CBPCY
VLC *cbpcy_vlc; ///< CBPCY VLC table
int tt_index; ///< Index for Transform Type tables
uint8_t* mv_type_mb_plane; ///< bitplane for mv_type == (4MV)
- uint8_t* skip_mb_plane; ///< bitplane for skipped MBs
-// BitPlane direct_mb_plane; ///< bitplane for "direct" MBs
+ uint8_t* direct_mb_plane; ///< bitplane for "direct" MBs
int mv_type_is_raw; ///< mv type mb plane is not coded
+ int dmb_is_raw; ///< direct mb plane is raw
int skip_is_raw; ///< skip mb plane is not coded
+ uint8_t luty[256], lutuv[256]; // lookup tables used for intensity compensation
+ int use_ic; ///< use intensity compensation in B-frames
+ int rnd; ///< rounding control
/** Frame decoding info for S/M profiles only */
//@{
int hrd_num_leaky_buckets;
uint8_t bit_rate_exponent;
uint8_t buffer_size_exponent;
-// BitPlane ac_pred_plane; ///< AC prediction flags bitplane
-// BitPlane over_flags_plane; ///< Overflags bitplane
+ uint8_t* acpred_plane; ///< AC prediction flags bitplane
+ int acpred_is_raw;
+ uint8_t* over_flags_plane; ///< Overflags bitplane
+ int overflg_is_raw;
uint8_t condover;
uint16_t *hrd_rate, *hrd_buffer;
uint8_t *hrd_fullness;
uint8_t range_mapy;
uint8_t range_mapuv;
//@}
+
+ int p_frame_skipped;
+ int bi_type;
} VC1Context;
/**
* @param v VC-1 context for bit reading and logging
* @return Status
* @fixme FIXME: Optimize
- * @todo TODO: Decide if a struct is needed
*/
static int bitplane_decoding(uint8_t* data, int *raw_flag, VC1Context *v)
{
}
if(width & 1) decode_colskip(data, 1, height, stride, &v->s.gb);
} else { // 3x2
+ planep += (height & 1) * stride;
for(y = height & 1; y < height; y += 2) {
for(x = width % 3; x < width; x += 3) {
code = get_vlc2(gb, vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
v->dqbilevel = get_bits(gb, 1);
default: break; //Forbidden ?
}
- if (!v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS)
+ if (v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS)
{
pqdiff = get_bits(gb, 3);
if (pqdiff == 7) v->altpq = get_bits(gb, 5);
return 0;
}
-
-/** Do inverse transform
- */
-static void vc1_inv_trans(DCTELEM block[64], int M, int N)
-{
- int i;
- register int t1,t2,t3,t4,t5,t6,t7,t8;
- DCTELEM *src, *dst;
-
- src = block;
- dst = block;
- if(M==4){
- for(i = 0; i < N; i++){
- t1 = 17 * (src[0] + src[2]);
- t2 = 17 * (src[0] - src[2]);
- t3 = 22 * src[1];
- t4 = 22 * src[3];
- t5 = 10 * src[1];
- t6 = 10 * src[3];
-
- dst[0] = (t1 + t3 + t6 + 4) >> 3;
- dst[1] = (t2 - t4 + t5 + 4) >> 3;
- dst[2] = (t2 + t4 - t5 + 4) >> 3;
- dst[3] = (t1 - t3 - t6 + 4) >> 3;
-
- src += 8;
- dst += 8;
- }
- }else{
- for(i = 0; i < N; i++){
- t1 = 12 * (src[0] + src[4]);
- t2 = 12 * (src[0] - src[4]);
- t3 = 16 * src[2] + 6 * src[6];
- t4 = 6 * src[2] - 16 * src[6];
-
- t5 = t1 + t3;
- t6 = t2 + t4;
- t7 = t2 - t4;
- t8 = t1 - t3;
-
- t1 = 16 * src[1] + 15 * src[3] + 9 * src[5] + 4 * src[7];
- t2 = 15 * src[1] - 4 * src[3] - 16 * src[5] - 9 * src[7];
- t3 = 9 * src[1] - 16 * src[3] + 4 * src[5] + 15 * src[7];
- t4 = 4 * src[1] - 9 * src[3] + 15 * src[5] - 16 * src[7];
-
- dst[0] = (t5 + t1 + 4) >> 3;
- dst[1] = (t6 + t2 + 4) >> 3;
- dst[2] = (t7 + t3 + 4) >> 3;
- dst[3] = (t8 + t4 + 4) >> 3;
- dst[4] = (t8 - t4 + 4) >> 3;
- dst[5] = (t7 - t3 + 4) >> 3;
- dst[6] = (t6 - t2 + 4) >> 3;
- dst[7] = (t5 - t1 + 4) >> 3;
-
- src += 8;
- dst += 8;
- }
- }
-
- src = block;
- dst = block;
- if(N==4){
- for(i = 0; i < M; i++){
- t1 = 17 * (src[ 0] + src[16]);
- t2 = 17 * (src[ 0] - src[16]);
- t3 = 22 * src[ 8];
- t4 = 22 * src[24];
- t5 = 10 * src[ 8];
- t6 = 10 * src[24];
-
- dst[ 0] = (t1 + t3 + t6 + 64) >> 7;
- dst[ 8] = (t2 - t4 + t5 + 64) >> 7;
- dst[16] = (t2 + t4 - t5 + 64) >> 7;
- dst[24] = (t1 - t3 - t6 + 64) >> 7;
-
- src ++;
- dst ++;
- }
- }else{
- for(i = 0; i < M; i++){
- t1 = 12 * (src[ 0] + src[32]);
- t2 = 12 * (src[ 0] - src[32]);
- t3 = 16 * src[16] + 6 * src[48];
- t4 = 6 * src[16] - 16 * src[48];
-
- t5 = t1 + t3;
- t6 = t2 + t4;
- t7 = t2 - t4;
- t8 = t1 - t3;
-
- t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
- t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
- t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
- t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
-
- dst[ 0] = (t5 + t1 + 64) >> 7;
- dst[ 8] = (t6 + t2 + 64) >> 7;
- dst[16] = (t7 + t3 + 64) >> 7;
- dst[24] = (t8 + t4 + 64) >> 7;
- dst[32] = (t8 - t4 + 64 + 1) >> 7;
- dst[40] = (t7 - t3 + 64 + 1) >> 7;
- dst[48] = (t6 - t2 + 64 + 1) >> 7;
- dst[56] = (t5 - t1 + 64 + 1) >> 7;
-
- src++;
- dst++;
- }
- }
-}
-
-/** Apply overlap transform
- * @todo optimize
- * @todo move to DSPContext
- */
-static void vc1_overlap_block(MpegEncContext *s, DCTELEM block[64], int n, int do_hor, int do_vert)
-{
- int i;
-
- if(do_hor) { //TODO
- }
- if(do_vert) { //TODO
- }
-
- for(i = 0; i < 64; i++)
- block[i] += 128;
-}
-
-
-static void vc1_v_overlap(uint8_t* src, int stride)
-{
- int i;
- int a, b, c, d;
- for(i = 0; i < 8; i++) {
- a = src[-2*stride];
- b = src[-stride];
- c = src[0];
- d = src[stride];
-
- src[-2*stride] = (7*a + d) >> 3;
- src[-stride] = (-a + 7*b + c + d) >> 3;
- src[0] = (a + b + 7*c - d) >> 3;
- src[stride] = (a + 7*d) >> 3;
- src++;
- }
-}
-
-static void vc1_h_overlap(uint8_t* src, int stride)
-{
- int i;
- int a, b, c, d;
- for(i = 0; i < 8; i++) {
- a = src[-2];
- b = src[-1];
- c = src[0];
- d = src[1];
-
- src[-2] = (7*a + d) >> 3;
- src[-1] = (-a + 7*b + c + d) >> 3;
- src[0] = (a + b + 7*c - d) >> 3;
- src[1] = (a + 7*d) >> 3;
- src += stride;
- }
-}
-
/** Put block onto picture
- * @todo move to DSPContext
*/
static void vc1_put_block(VC1Context *v, DCTELEM block[6][64])
{
int ys, us, vs;
DSPContext *dsp = &v->s.dsp;
+ if(v->rangeredfrm) {
+ int i, j, k;
+ for(k = 0; k < 6; k++)
+ for(j = 0; j < 8; j++)
+ for(i = 0; i < 8; i++)
+ block[k][i + j*8] = ((block[k][i + j*8] - 128) << 1) + 128;
+
+ }
ys = v->s.current_picture.linesize[0];
us = v->s.current_picture.linesize[1];
vs = v->s.current_picture.linesize[2];
dsp->put_pixels_clamped(block[2], Y, ys);
dsp->put_pixels_clamped(block[3], Y + 8, ys);
- dsp->put_pixels_clamped(block[4], v->s.dest[1], us);
- dsp->put_pixels_clamped(block[5], v->s.dest[2], vs);
+ if(!(v->s.flags & CODEC_FLAG_GRAY)) {
+ dsp->put_pixels_clamped(block[4], v->s.dest[1], us);
+ dsp->put_pixels_clamped(block[5], v->s.dest[2], vs);
+ }
}
-/* clip motion vector as specified in 8.3.6.5 */
-#define CLIP_RANGE(mv, src, lim, bs) \
- if(mv < -bs) mv = -bs - src * bs; \
- if(mv > lim) mv = lim - src * bs;
-
/** Do motion compensation over 1 macroblock
* Mostly adapted hpel_motion and qpel_motion from mpegvideo.c
*/
-static void vc1_mc_1mv(VC1Context *v)
+static void vc1_mc_1mv(VC1Context *v, int dir)
{
MpegEncContext *s = &v->s;
DSPContext *dsp = &v->s.dsp;
if(!v->s.last_picture.data[0])return;
- mx = s->mv[0][0][0];
- my = s->mv[0][0][1];
+ mx = s->mv[dir][0][0];
+ my = s->mv[dir][0][1];
+
+ // store motion vectors for further use in B frames
+ if(s->pict_type == P_TYPE) {
+ s->current_picture.motion_val[1][s->block_index[0]][0] = mx;
+ s->current_picture.motion_val[1][s->block_index[0]][1] = my;
+ }
uvmx = (mx + ((mx & 3) == 3)) >> 1;
uvmy = (my + ((my & 3) == 3)) >> 1;
- srcY = s->last_picture.data[0];
- srcU = s->last_picture.data[1];
- srcV = s->last_picture.data[2];
-
- if(v->fastuvmc) { // XXX: 8.3.5.4.5 specifies something different
- uvmx = (uvmx + 1) >> 1;
- uvmy = (uvmy + 1) >> 1;
+ if(!dir) {
+ srcY = s->last_picture.data[0];
+ srcU = s->last_picture.data[1];
+ srcV = s->last_picture.data[2];
+ } else {
+ srcY = s->next_picture.data[0];
+ srcU = s->next_picture.data[1];
+ srcV = s->next_picture.data[2];
}
src_x = s->mb_x * 16 + (mx >> 2);
uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
- CLIP_RANGE( src_x, s->mb_x, s->mb_width * 16, 16);
- CLIP_RANGE( src_y, s->mb_y, s->mb_height * 16, 16);
- CLIP_RANGE(uvsrc_x, s->mb_x, s->mb_width * 8, 8);
- CLIP_RANGE(uvsrc_y, s->mb_y, s->mb_height * 8, 8);
+ src_x = clip( src_x, -16, s->mb_width * 16);
+ src_y = clip( src_y, -16, s->mb_height * 16);
+ uvsrc_x = clip(uvsrc_x, -8, s->mb_width * 8);
+ uvsrc_y = clip(uvsrc_y, -8, s->mb_height * 8);
srcY += src_y * s->linesize + src_x;
srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
- if((unsigned)src_x > s->h_edge_pos - (mx&3) - 16
- || (unsigned)src_y > s->v_edge_pos - (my&3) - 16){
- uint8_t *uvbuf= s->edge_emu_buffer + 18 * s->linesize;
+ /* for grayscale we should not try to read from unknown area */
+ if(s->flags & CODEC_FLAG_GRAY) {
+ srcU = s->edge_emu_buffer + 18 * s->linesize;
+ srcV = s->edge_emu_buffer + 18 * s->linesize;
+ }
+
+ if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
+ || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 16 - s->mspel*3
+ || (unsigned)(src_y - s->mspel) > s->v_edge_pos - (my&3) - 16 - s->mspel*3){
+ uint8_t *uvbuf= s->edge_emu_buffer + 19 * s->linesize;
- ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 16+1, 16+1,
- src_x, src_y, s->h_edge_pos, s->v_edge_pos);
+ srcY -= s->mspel * (1 + s->linesize);
+ ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 17+s->mspel*2, 17+s->mspel*2,
+ src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
srcY = s->edge_emu_buffer;
ff_emulated_edge_mc(uvbuf , srcU, s->uvlinesize, 8+1, 8+1,
uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
srcU = uvbuf;
srcV = uvbuf + 16;
+ /* if we deal with range reduction we need to scale source blocks */
+ if(v->rangeredfrm) {
+ int i, j;
+ uint8_t *src, *src2;
+
+ src = srcY;
+ for(j = 0; j < 17 + s->mspel*2; j++) {
+ for(i = 0; i < 17 + s->mspel*2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
+ src += s->linesize;
+ }
+ src = srcU; src2 = srcV;
+ for(j = 0; j < 9; j++) {
+ for(i = 0; i < 9; i++) {
+ src[i] = ((src[i] - 128) >> 1) + 128;
+ src2[i] = ((src2[i] - 128) >> 1) + 128;
+ }
+ src += s->uvlinesize;
+ src2 += s->uvlinesize;
+ }
+ }
+ /* if we deal with intensity compensation we need to scale source blocks */
+ if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
+ int i, j;
+ uint8_t *src, *src2;
+
+ src = srcY;
+ for(j = 0; j < 17 + s->mspel*2; j++) {
+ for(i = 0; i < 17 + s->mspel*2; i++) src[i] = v->luty[src[i]];
+ src += s->linesize;
+ }
+ src = srcU; src2 = srcV;
+ for(j = 0; j < 9; j++) {
+ for(i = 0; i < 9; i++) {
+ src[i] = v->lutuv[src[i]];
+ src2[i] = v->lutuv[src2[i]];
+ }
+ src += s->uvlinesize;
+ src2 += s->uvlinesize;
+ }
+ }
+ srcY += s->mspel * (1 + s->linesize);
}
- if(!s->quarter_sample) { // hpel mc
- mx >>= 1;
- my >>= 1;
- uvmx >>= 1;
- uvmy >>= 1;
- dxy = ((my & 1) << 1) | (mx & 1);
- uvdxy = 0;
+ if(v->fastuvmc) {
+ uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
+ uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
+ }
- dsp->put_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
- } else {
+ if(s->mspel) {
+ dxy = ((my & 3) << 2) | (mx & 3);
+ dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] , srcY , s->linesize, v->rnd);
+ dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8, srcY + 8, s->linesize, v->rnd);
+ srcY += s->linesize * 8;
+ dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize , srcY , s->linesize, v->rnd);
+ dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize + 8, srcY + 8, s->linesize, v->rnd);
+ } else { // hpel mc - always used for luma
+ dxy = (my & 2) | ((mx & 2) >> 1);
+
+ if(!v->rnd)
+ dsp->put_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
+ else
+ dsp->put_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
+ }
+
+ if(s->flags & CODEC_FLAG_GRAY) return;
+ /* Chroma MC always uses qpel bilinear */
+ uvdxy = ((uvmy & 3) << 2) | (uvmx & 3);
+ uvmx = (uvmx&3)<<1;
+ uvmy = (uvmy&3)<<1;
+ if(!v->rnd){
+ dsp->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
+ dsp->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
+ }else{
+ dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
+ dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
+ }
+}
+
+/** Do motion compensation for 4-MV macroblock - luminance block
+ */
+static void vc1_mc_4mv_luma(VC1Context *v, int n)
+{
+ MpegEncContext *s = &v->s;
+ DSPContext *dsp = &v->s.dsp;
+ uint8_t *srcY;
+ int dxy, mx, my, src_x, src_y;
+ int off;
+
+ if(!v->s.last_picture.data[0])return;
+ mx = s->mv[0][n][0];
+ my = s->mv[0][n][1];
+ srcY = s->last_picture.data[0];
+
+ off = s->linesize * 4 * (n&2) + (n&1) * 8;
+
+ src_x = s->mb_x * 16 + (n&1) * 8 + (mx >> 2);
+ src_y = s->mb_y * 16 + (n&2) * 4 + (my >> 2);
+
+ src_x = clip( src_x, -16, s->mb_width * 16);
+ src_y = clip( src_y, -16, s->mb_height * 16);
+
+ srcY += src_y * s->linesize + src_x;
+
+ if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
+ || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 8 - s->mspel*2
+ || (unsigned)(src_y - s->mspel) > s->v_edge_pos - (my&3) - 8 - s->mspel*2){
+ srcY -= s->mspel * (1 + s->linesize);
+ ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 9+s->mspel*2, 9+s->mspel*2,
+ src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
+ srcY = s->edge_emu_buffer;
+ /* if we deal with range reduction we need to scale source blocks */
+ if(v->rangeredfrm) {
+ int i, j;
+ uint8_t *src;
+
+ src = srcY;
+ for(j = 0; j < 9 + s->mspel*2; j++) {
+ for(i = 0; i < 9 + s->mspel*2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
+ src += s->linesize;
+ }
+ }
+ /* if we deal with intensity compensation we need to scale source blocks */
+ if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
+ int i, j;
+ uint8_t *src;
+
+ src = srcY;
+ for(j = 0; j < 9 + s->mspel*2; j++) {
+ for(i = 0; i < 9 + s->mspel*2; i++) src[i] = v->luty[src[i]];
+ src += s->linesize;
+ }
+ }
+ srcY += s->mspel * (1 + s->linesize);
+ }
+
+ if(s->mspel) {
dxy = ((my & 3) << 2) | (mx & 3);
- uvdxy = ((uvmy & 1) << 1) | (uvmx & 1);
+ dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize, v->rnd);
+ } else { // hpel mc - always used for luma
+ dxy = (my & 2) | ((mx & 2) >> 1);
+ if(!v->rnd)
+ dsp->put_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8);
+ else
+ dsp->put_no_rnd_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8);
+ }
+}
+
+static inline int median4(int a, int b, int c, int d)
+{
+ if(a < b) {
+ if(c < d) return (FFMIN(b, d) + FFMAX(a, c)) / 2;
+ else return (FFMIN(b, c) + FFMAX(a, d)) / 2;
+ } else {
+ if(c < d) return (FFMIN(a, d) + FFMAX(b, c)) / 2;
+ else return (FFMIN(a, c) + FFMAX(b, d)) / 2;
+ }
+}
+
+
+/** Do motion compensation for 4-MV macroblock - both chroma blocks
+ */
+static void vc1_mc_4mv_chroma(VC1Context *v)
+{
+ MpegEncContext *s = &v->s;
+ DSPContext *dsp = &v->s.dsp;
+ uint8_t *srcU, *srcV;
+ int uvdxy, uvmx, uvmy, uvsrc_x, uvsrc_y;
+ int i, idx, tx = 0, ty = 0;
+ int mvx[4], mvy[4], intra[4];
+ static const int count[16] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
+
+ if(!v->s.last_picture.data[0])return;
+ if(s->flags & CODEC_FLAG_GRAY) return;
+
+ for(i = 0; i < 4; i++) {
+ mvx[i] = s->mv[0][i][0];
+ mvy[i] = s->mv[0][i][1];
+ intra[i] = v->mb_type[0][s->block_index[i]];
+ }
+
+ /* calculate chroma MV vector from four luma MVs */
+ idx = (intra[3] << 3) | (intra[2] << 2) | (intra[1] << 1) | intra[0];
+ if(!idx) { // all blocks are inter
+ tx = median4(mvx[0], mvx[1], mvx[2], mvx[3]);
+ ty = median4(mvy[0], mvy[1], mvy[2], mvy[3]);
+ } else if(count[idx] == 1) { // 3 inter blocks
+ switch(idx) {
+ case 0x1:
+ tx = mid_pred(mvx[1], mvx[2], mvx[3]);
+ ty = mid_pred(mvy[1], mvy[2], mvy[3]);
+ break;
+ case 0x2:
+ tx = mid_pred(mvx[0], mvx[2], mvx[3]);
+ ty = mid_pred(mvy[0], mvy[2], mvy[3]);
+ break;
+ case 0x4:
+ tx = mid_pred(mvx[0], mvx[1], mvx[3]);
+ ty = mid_pred(mvy[0], mvy[1], mvy[3]);
+ break;
+ case 0x8:
+ tx = mid_pred(mvx[0], mvx[1], mvx[2]);
+ ty = mid_pred(mvy[0], mvy[1], mvy[2]);
+ break;
+ }
+ } else if(count[idx] == 2) {
+ int t1 = 0, t2 = 0;
+ for(i=0; i<3;i++) if(!intra[i]) {t1 = i; break;}
+ for(i= t1+1; i<4; i++)if(!intra[i]) {t2 = i; break;}
+ tx = (mvx[t1] + mvx[t2]) / 2;
+ ty = (mvy[t1] + mvy[t2]) / 2;
+ } else
+ return; //no need to do MC for inter blocks
+
+ s->current_picture.motion_val[1][s->block_index[0]][0] = tx;
+ s->current_picture.motion_val[1][s->block_index[0]][1] = ty;
+ uvmx = (tx + ((tx&3) == 3)) >> 1;
+ uvmy = (ty + ((ty&3) == 3)) >> 1;
+
+ uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
+ uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
+
+ uvsrc_x = clip(uvsrc_x, -8, s->mb_width * 8);
+ uvsrc_y = clip(uvsrc_y, -8, s->mb_height * 8);
+ srcU = s->last_picture.data[1] + uvsrc_y * s->uvlinesize + uvsrc_x;
+ srcV = s->last_picture.data[2] + uvsrc_y * s->uvlinesize + uvsrc_x;
+ if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
+ || (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9
+ || (unsigned)uvsrc_y > (s->v_edge_pos >> 1) - 9){
+ ff_emulated_edge_mc(s->edge_emu_buffer , srcU, s->uvlinesize, 8+1, 8+1,
+ uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
+ ff_emulated_edge_mc(s->edge_emu_buffer + 16, srcV, s->uvlinesize, 8+1, 8+1,
+ uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
+ srcU = s->edge_emu_buffer;
+ srcV = s->edge_emu_buffer + 16;
+
+ /* if we deal with range reduction we need to scale source blocks */
+ if(v->rangeredfrm) {
+ int i, j;
+ uint8_t *src, *src2;
+
+ src = srcU; src2 = srcV;
+ for(j = 0; j < 9; j++) {
+ for(i = 0; i < 9; i++) {
+ src[i] = ((src[i] - 128) >> 1) + 128;
+ src2[i] = ((src2[i] - 128) >> 1) + 128;
+ }
+ src += s->uvlinesize;
+ src2 += s->uvlinesize;
+ }
+ }
+ /* if we deal with intensity compensation we need to scale source blocks */
+ if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
+ int i, j;
+ uint8_t *src, *src2;
+
+ src = srcU; src2 = srcV;
+ for(j = 0; j < 9; j++) {
+ for(i = 0; i < 9; i++) {
+ src[i] = v->lutuv[src[i]];
+ src2[i] = v->lutuv[src2[i]];
+ }
+ src += s->uvlinesize;
+ src2 += s->uvlinesize;
+ }
+ }
+ }
+
+ if(v->fastuvmc) {
+ uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
+ uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
+ }
- dsp->put_no_rnd_qpel_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize);
+ /* Chroma MC always uses qpel bilinear */
+ uvdxy = ((uvmy & 3) << 2) | (uvmx & 3);
+ uvmx = (uvmx&3)<<1;
+ uvmy = (uvmy&3)<<1;
+ if(!v->rnd){
+ dsp->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
+ dsp->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
+ }else{
+ dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
+ dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
}
- dsp->put_mspel_pixels_tab[uvdxy](s->dest[1], srcU, s->uvlinesize);
- dsp->put_mspel_pixels_tab[uvdxy](s->dest[2], srcV, s->uvlinesize);
}
+static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb);
+
/**
* Decode Simple/Main Profiles sequence header
* @see Figure 7-8, p16-17
{
VC1Context *v = avctx->priv_data;
- av_log(avctx, AV_LOG_INFO, "Header: %0X\n", show_bits(gb, 32));
+ av_log(avctx, AV_LOG_DEBUG, "Header: %0X\n", show_bits(gb, 32));
v->profile = get_bits(gb, 2);
if (v->profile == 2)
{
if (v->profile == PROFILE_ADVANCED)
{
- v->level = get_bits(gb, 3);
- if(v->level >= 5)
- {
- av_log(avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);
- }
- v->chromaformat = get_bits(gb, 2);
- if (v->chromaformat != 1)
- {
- av_log(avctx, AV_LOG_ERROR,
- "Only 4:2:0 chroma format supported\n");
- return -1;
- }
+ return decode_sequence_header_adv(v, gb);
}
else
{
"LOOPFILTER shell not be enabled in simple profile\n");
}
- if (v->profile < PROFILE_ADVANCED)
+ v->res_x8 = get_bits(gb, 1); //reserved
+ if (v->res_x8)
{
- v->res_x8 = get_bits(gb, 1); //reserved
- if (v->res_x8)
- {
- av_log(avctx, AV_LOG_ERROR,
- "1 for reserved RES_X8 is forbidden\n");
- //return -1;
- }
- v->multires = get_bits(gb, 1);
- v->res_fasttx = get_bits(gb, 1);
- if (!v->res_fasttx)
- {
- av_log(avctx, AV_LOG_ERROR,
- "0 for reserved RES_FASTTX is forbidden\n");
- //return -1;
- }
+ av_log(avctx, AV_LOG_ERROR,
+ "1 for reserved RES_X8 is forbidden\n");
+ //return -1;
+ }
+ v->multires = get_bits(gb, 1);
+ v->res_fasttx = get_bits(gb, 1);
+ if (!v->res_fasttx)
+ {
+ av_log(avctx, AV_LOG_ERROR,
+ "0 for reserved RES_FASTTX is forbidden\n");
+ //return -1;
}
v->fastuvmc = get_bits(gb, 1); //common
v->dquant = get_bits(gb, 2); //common
v->vstransform = get_bits(gb, 1); //common
- if (v->profile < PROFILE_ADVANCED)
+ v->res_transtab = get_bits(gb, 1);
+ if (v->res_transtab)
{
- v->res_transtab = get_bits(gb, 1);
- if (v->res_transtab)
- {
- av_log(avctx, AV_LOG_ERROR,
- "1 for reserved RES_TRANSTAB is forbidden\n");
- return -1;
- }
+ av_log(avctx, AV_LOG_ERROR,
+ "1 for reserved RES_TRANSTAB is forbidden\n");
+ return -1;
}
v->overlap = get_bits(gb, 1); //common
- if (v->profile < PROFILE_ADVANCED)
+ v->s.resync_marker = get_bits(gb, 1);
+ v->rangered = get_bits(gb, 1);
+ if (v->rangered && v->profile == PROFILE_SIMPLE)
{
- v->s.resync_marker = get_bits(gb, 1);
- v->rangered = get_bits(gb, 1);
- if (v->rangered && v->profile == PROFILE_SIMPLE)
- {
- av_log(avctx, AV_LOG_INFO,
- "RANGERED should be set to 0 in simple profile\n");
- }
+ av_log(avctx, AV_LOG_INFO,
+ "RANGERED should be set to 0 in simple profile\n");
}
v->s.max_b_frames = avctx->max_b_frames = get_bits(gb, 3); //common
v->quantizer_mode = get_bits(gb, 2); //common
- if (v->profile < PROFILE_ADVANCED)
+ v->finterpflag = get_bits(gb, 1); //common
+ v->res_rtm_flag = get_bits(gb, 1); //reserved
+ if (!v->res_rtm_flag)
{
- v->finterpflag = get_bits(gb, 1); //common
- v->res_rtm_flag = get_bits(gb, 1); //reserved
- if (!v->res_rtm_flag)
- {
- av_log(avctx, AV_LOG_ERROR,
- "0 for reserved RES_RTM_FLAG is forbidden\n");
- //return -1;
- }
- av_log(avctx, AV_LOG_DEBUG,
+// av_log(avctx, AV_LOG_ERROR,
+// "0 for reserved RES_RTM_FLAG is forbidden\n");
+ av_log(avctx, AV_LOG_ERROR,
+ "Old WMV3 version detected, only I-frames will be decoded\n");
+ //return -1;
+ }
+ av_log(avctx, AV_LOG_DEBUG,
"Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
- "LoopFilter=%i, MultiRes=%i, FastUVMV=%i, Extended MV=%i\n"
+ "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
"Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
"DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",
v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
v->rangered, v->vstransform, v->overlap, v->s.resync_marker,
v->dquant, v->quantizer_mode, avctx->max_b_frames
);
- return 0;
+ return 0;
+}
+
+static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
+{
+ v->res_rtm_flag = 1;
+ v->level = get_bits(gb, 3);
+ if(v->level >= 5)
+ {
+ av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);
}
- return -1;
+ v->chromaformat = get_bits(gb, 2);
+ if (v->chromaformat != 1)
+ {
+ av_log(v->s.avctx, AV_LOG_ERROR,
+ "Only 4:2:0 chroma format supported\n");
+ return -1;
+ }
+
+ // (fps-2)/4 (->30)
+ v->frmrtq_postproc = get_bits(gb, 3); //common
+ // (bitrate-32kbps)/64kbps
+ v->bitrtq_postproc = get_bits(gb, 5); //common
+ v->postprocflag = get_bits(gb, 1); //common
+
+ v->s.avctx->coded_width = (get_bits(gb, 12) + 1) << 1;
+ v->s.avctx->coded_height = (get_bits(gb, 12) + 1) << 1;
+ v->broadcast = get_bits1(gb);
+ v->interlace = get_bits1(gb);
+ v->tfcntrflag = get_bits1(gb);
+ v->finterpflag = get_bits1(gb);
+ get_bits1(gb); // reserved
+ v->psf = get_bits1(gb);
+ if(v->psf) { //PsF, 6.1.13
+ av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");
+ return -1;
+ }
+ if(get_bits1(gb)) { //Display Info - decoding is not affected by it
+ int w, h, ar = 0;
+ av_log(v->s.avctx, AV_LOG_INFO, "Display extended info:\n");
+ w = get_bits(gb, 14);
+ h = get_bits(gb, 14);
+ av_log(v->s.avctx, AV_LOG_INFO, "Display dimensions: %ix%i\n", w, h);
+ //TODO: store aspect ratio in AVCodecContext
+ if(get_bits1(gb))
+ ar = get_bits(gb, 4);
+ if(ar == 15) {
+ w = get_bits(gb, 8);
+ h = get_bits(gb, 8);
+ }
+
+ if(get_bits1(gb)){ //framerate stuff
+ if(get_bits1(gb)) {
+ get_bits(gb, 16);
+ } else {
+ get_bits(gb, 8);
+ get_bits(gb, 4);
+ }
+ }
+
+ if(get_bits1(gb)){
+ v->color_prim = get_bits(gb, 8);
+ v->transfer_char = get_bits(gb, 8);
+ v->matrix_coef = get_bits(gb, 8);
+ }
+ }
+
+ v->hrd_param_flag = get_bits1(gb);
+ if(v->hrd_param_flag) {
+ int i;
+ v->hrd_num_leaky_buckets = get_bits(gb, 5);
+ get_bits(gb, 4); //bitrate exponent
+ get_bits(gb, 4); //buffer size exponent
+ for(i = 0; i < v->hrd_num_leaky_buckets; i++) {
+ get_bits(gb, 16); //hrd_rate[n]
+ get_bits(gb, 16); //hrd_buffer[n]
+ }
+ }
+ return 0;
}
+static int decode_entry_point(AVCodecContext *avctx, GetBitContext *gb)
+{
+ VC1Context *v = avctx->priv_data;
+ int i;
+
+ av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
+ get_bits1(gb); // broken link
+ avctx->max_b_frames = 1 - get_bits1(gb); // 'closed entry' also signalize possible B-frames
+ v->panscanflag = get_bits1(gb);
+ get_bits1(gb); // refdist flag
+ v->s.loop_filter = get_bits1(gb);
+ v->fastuvmc = get_bits1(gb);
+ v->extended_mv = get_bits1(gb);
+ v->dquant = get_bits(gb, 2);
+ v->vstransform = get_bits1(gb);
+ v->overlap = get_bits1(gb);
+ v->quantizer_mode = get_bits(gb, 2);
+
+ if(v->hrd_param_flag){
+ for(i = 0; i < v->hrd_num_leaky_buckets; i++) {
+ get_bits(gb, 8); //hrd_full[n]
+ }
+ }
+
+ if(get_bits1(gb)){
+ avctx->coded_width = (get_bits(gb, 12)+1)<<1;
+ avctx->coded_height = (get_bits(gb, 12)+1)<<1;
+ }
+ if(v->extended_mv)
+ v->extended_dmv = get_bits1(gb);
+ if(get_bits1(gb)) {
+ av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");
+ skip_bits(gb, 3); // Y range, ignored for now
+ }
+ if(get_bits1(gb)) {
+ av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");
+ skip_bits(gb, 3); // UV range, ignored for now
+ }
+
+ return 0;
+}
static int vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
{
} else v->s.pict_type = P_TYPE;
} else v->s.pict_type = v->s.pict_type ? P_TYPE : I_TYPE;
- if(v->s.pict_type == I_TYPE)
+ v->bi_type = 0;
+ if(v->s.pict_type == B_TYPE) {
+ v->bfraction = get_vlc2(gb, vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
+ v->bfraction = vc1_bfraction_lut[v->bfraction];
+ if(v->bfraction == 0) {
+ v->s.pict_type = BI_TYPE;
+ }
+ }
+ if(v->s.pict_type == I_TYPE || v->s.pict_type == BI_TYPE)
get_bits(gb, 7); // skip buffer fullness
+ /* calculate RND */
+ if(v->s.pict_type == I_TYPE || v->s.pict_type == BI_TYPE)
+ v->rnd = 1;
+ if(v->s.pict_type == P_TYPE)
+ v->rnd ^= 1;
+
/* Quantizer stuff */
pqindex = get_bits(gb, 5);
if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
v->pq = pquant_table[0][pqindex];
else
- v->pq = pquant_table[v->quantizer_mode-1][pqindex];
+ v->pq = pquant_table[1][pqindex];
+ v->pquantizer = 1;
if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
v->pquantizer = pqindex < 9;
- if (v->quantizer_mode == QUANT_UNIFORM || v->quantizer_mode == QUANT_NON_UNIFORM)
- v->pquantizer = v->quantizer_mode == QUANT_UNIFORM;
+ if (v->quantizer_mode == QUANT_NON_UNIFORM)
+ v->pquantizer = 0;
v->pqindex = pqindex;
if (pqindex < 9) v->halfpq = get_bits(gb, 1);
else v->halfpq = 0;
if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
v->pquantizer = get_bits(gb, 1);
v->dquantfrm = 0;
+ if (v->extended_mv == 1) v->mvrange = get_prefix(gb, 0, 3);
+ v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
+ v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
+ v->range_x = 1 << (v->k_x - 1);
+ v->range_y = 1 << (v->k_y - 1);
+ if (v->profile == PROFILE_ADVANCED)
+ {
+ if (v->postprocflag) v->postproc = get_bits(gb, 1);
+ }
+ else
+ if (v->multires && v->s.pict_type != B_TYPE) v->respic = get_bits(gb, 2);
//av_log(v->s.avctx, AV_LOG_INFO, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
// (v->s.pict_type == P_TYPE) ? 'P' : ((v->s.pict_type == I_TYPE) ? 'I' : 'B'), pqindex, v->pq, v->halfpq, v->rangeredfrm);
- //TODO: complete parsing for P/B/BI frames
+ if(v->s.pict_type == I_TYPE || v->s.pict_type == P_TYPE) v->use_ic = 0;
+
switch(v->s.pict_type) {
case P_TYPE:
if (v->pq < 5) v->tt_index = 0;
else if(v->pq < 13) v->tt_index = 1;
else v->tt_index = 2;
- if (v->extended_mv == 1) v->mvrange = get_prefix(gb, 0, 3);
- v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
- v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
- v->range_x = 1 << (v->k_x - 1);
- v->range_y = 1 << (v->k_y - 1);
- if (v->profile == PROFILE_ADVANCED)
- {
- if (v->postprocflag) v->postproc = get_bits(gb, 1);
- }
- else
- if (v->multires) v->respic = get_bits(gb, 2);
lowquant = (v->pq > 12) ? 0 : 1;
v->mv_mode = mv_pmode_table[lowquant][get_prefix(gb, 1, 4)];
if (v->mv_mode == MV_PMODE_INTENSITY_COMP)
{
- v->mv_mode2 = mv_pmode_table[lowquant][get_prefix(gb, 1, 3)];
+ int scale, shift, i;
+ v->mv_mode2 = mv_pmode_table2[lowquant][get_prefix(gb, 1, 3)];
v->lumscale = get_bits(gb, 6);
v->lumshift = get_bits(gb, 6);
+ v->use_ic = 1;
+ /* fill lookup tables for intensity compensation */
+ if(!v->lumscale) {
+ scale = -64;
+ shift = (255 - v->lumshift * 2) << 6;
+ if(v->lumshift > 31)
+ shift += 128 << 6;
+ } else {
+ scale = v->lumscale + 32;
+ if(v->lumshift > 31)
+ shift = (v->lumshift - 64) << 6;
+ else
+ shift = v->lumshift << 6;
+ }
+ for(i = 0; i < 256; i++) {
+ v->luty[i] = clip_uint8((scale * i + shift + 32) >> 6);
+ v->lutuv[i] = clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
+ }
}
if(v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
v->s.quarter_sample = 0;
- else
+ else if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
+ if(v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
+ v->s.quarter_sample = 0;
+ else
+ v->s.quarter_sample = 1;
+ } else
v->s.quarter_sample = 1;
+ v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || (v->mv_mode == MV_PMODE_INTENSITY_COMP && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
-if(v->mv_mode != MV_PMODE_1MV && v->mv_mode != MV_PMODE_1MV_HPEL && v->mv_mode != MV_PMODE_1MV_HPEL_BILIN) {
- av_log(v->s.avctx, AV_LOG_ERROR, "Only 1MV P-frames are supported by now\n");
- return -1;
-}
if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
v->mv_mode2 == MV_PMODE_MIXED_MV)
|| v->mv_mode == MV_PMODE_MIXED_MV)
v->mv_type_is_raw = 0;
memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
}
- status = bitplane_decoding(v->skip_mb_plane, &v->skip_is_raw, v);
+ status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
if (status < 0) return -1;
av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
"Imode: %i, Invert: %i\n", status>>1, status&1);
v->ttmbf = get_bits(gb, 1);
if (v->ttmbf)
{
- v->ttfrm = get_bits(gb, 2);
+ v->ttfrm = ttfrm_to_tt[get_bits(gb, 2)];
}
+ } else {
+ v->ttmbf = 1;
+ v->ttfrm = TT_8X8;
}
break;
case B_TYPE:
+ if (v->pq < 5) v->tt_index = 0;
+ else if(v->pq < 13) v->tt_index = 1;
+ else v->tt_index = 2;
+
+ lowquant = (v->pq > 12) ? 0 : 1;
+ v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
+ v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
+ v->s.mspel = v->s.quarter_sample;
+
+ status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
+ if (status < 0) return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
+ if (status < 0) return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+
+ v->s.mv_table_index = get_bits(gb, 2);
+ v->cbpcy_vlc = &vc1_cbpcy_p_vlc[get_bits(gb, 2)];
+
+ if (v->dquant)
+ {
+ av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
+ vop_dquant_decoding(v);
+ }
+
+ v->ttfrm = 0;
+ if (v->vstransform)
+ {
+ v->ttmbf = get_bits(gb, 1);
+ if (v->ttmbf)
+ {
+ v->ttfrm = ttfrm_to_tt[get_bits(gb, 2)];
+ }
+ } else {
+ v->ttmbf = 1;
+ v->ttfrm = TT_8X8;
+ }
break;
}
/* DC Syntax */
v->s.dc_table_index = get_bits(gb, 1);
+ if(v->s.pict_type == BI_TYPE) {
+ v->s.pict_type = B_TYPE;
+ v->bi_type = 1;
+ }
return 0;
}
-/***********************************************************************/
-/**
- * @defgroup block VC-1 Block-level functions
- * @see 7.1.4, p91 and 8.1.1.7, p(1)04
- * @todo TODO: Integrate to MpegEncContext facilities
+static int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
+{
+ int fcm;
+ int pqindex, lowquant;
+ int status;
+
+ v->p_frame_skipped = 0;
+
+ if(v->interlace)
+ fcm = decode012(gb);
+ switch(get_prefix(gb, 0, 4)) {
+ case 0:
+ v->s.pict_type = P_TYPE;
+ break;
+ case 1:
+ v->s.pict_type = B_TYPE;
+ return -1;
+// break;
+ case 2:
+ v->s.pict_type = I_TYPE;
+ break;
+ case 3:
+ v->s.pict_type = BI_TYPE;
+ break;
+ case 4:
+ v->s.pict_type = P_TYPE; // skipped pic
+ v->p_frame_skipped = 1;
+ return 0;
+ }
+ if(v->tfcntrflag)
+ get_bits(gb, 8);
+ if(v->broadcast) {
+ if(!v->interlace || v->panscanflag) {
+ get_bits(gb, 2);
+ } else {
+ get_bits1(gb);
+ get_bits1(gb);
+ }
+ }
+ if(v->panscanflag) {
+ //...
+ }
+ v->rnd = get_bits1(gb);
+ if(v->interlace)
+ v->uvsamp = get_bits1(gb);
+ if(v->finterpflag) v->interpfrm = get_bits(gb, 1);
+ pqindex = get_bits(gb, 5);
+ v->pqindex = pqindex;
+ if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
+ v->pq = pquant_table[0][pqindex];
+ else
+ v->pq = pquant_table[1][pqindex];
+
+ v->pquantizer = 1;
+ if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
+ v->pquantizer = pqindex < 9;
+ if (v->quantizer_mode == QUANT_NON_UNIFORM)
+ v->pquantizer = 0;
+ v->pqindex = pqindex;
+ if (pqindex < 9) v->halfpq = get_bits(gb, 1);
+ else v->halfpq = 0;
+ if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
+ v->pquantizer = get_bits(gb, 1);
+
+ switch(v->s.pict_type) {
+ case I_TYPE:
+ case BI_TYPE:
+ status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);
+ if (status < 0) return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ v->condover = CONDOVER_NONE;
+ if(v->overlap && v->pq <= 8) {
+ v->condover = decode012(gb);
+ if(v->condover == CONDOVER_SELECT) {
+ status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);
+ if (status < 0) return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ }
+ }
+ break;
+ case P_TYPE:
+ if(v->postprocflag)
+ v->postproc = get_bits1(gb);
+ if (v->extended_mv) v->mvrange = get_prefix(gb, 0, 3);
+ else v->mvrange = 0;
+ v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
+ v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
+ v->range_x = 1 << (v->k_x - 1);
+ v->range_y = 1 << (v->k_y - 1);
+
+ if (v->pq < 5) v->tt_index = 0;
+ else if(v->pq < 13) v->tt_index = 1;
+ else v->tt_index = 2;
+
+ lowquant = (v->pq > 12) ? 0 : 1;
+ v->mv_mode = mv_pmode_table[lowquant][get_prefix(gb, 1, 4)];
+ if (v->mv_mode == MV_PMODE_INTENSITY_COMP)
+ {
+ int scale, shift, i;
+ v->mv_mode2 = mv_pmode_table2[lowquant][get_prefix(gb, 1, 3)];
+ v->lumscale = get_bits(gb, 6);
+ v->lumshift = get_bits(gb, 6);
+ /* fill lookup tables for intensity compensation */
+ if(!v->lumscale) {
+ scale = -64;
+ shift = (255 - v->lumshift * 2) << 6;
+ if(v->lumshift > 31)
+ shift += 128 << 6;
+ } else {
+ scale = v->lumscale + 32;
+ if(v->lumshift > 31)
+ shift = (v->lumshift - 64) << 6;
+ else
+ shift = v->lumshift << 6;
+ }
+ for(i = 0; i < 256; i++) {
+ v->luty[i] = clip_uint8((scale * i + shift + 32) >> 6);
+ v->lutuv[i] = clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
+ }
+ }
+ if(v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
+ v->s.quarter_sample = 0;
+ else if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
+ if(v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
+ v->s.quarter_sample = 0;
+ else
+ v->s.quarter_sample = 1;
+ } else
+ v->s.quarter_sample = 1;
+ v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || (v->mv_mode == MV_PMODE_INTENSITY_COMP && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
+
+ if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
+ v->mv_mode2 == MV_PMODE_MIXED_MV)
+ || v->mv_mode == MV_PMODE_MIXED_MV)
+ {
+ status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
+ if (status < 0) return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+ } else {
+ v->mv_type_is_raw = 0;
+ memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
+ }
+ status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
+ if (status < 0) return -1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
+ "Imode: %i, Invert: %i\n", status>>1, status&1);
+
+ /* Hopefully this is correct for P frames */
+ v->s.mv_table_index = get_bits(gb, 2); //but using vc1_ tables
+ v->cbpcy_vlc = &vc1_cbpcy_p_vlc[get_bits(gb, 2)];
+ if (v->dquant)
+ {
+ av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
+ vop_dquant_decoding(v);
+ }
+
+ v->ttfrm = 0; //FIXME Is that so ?
+ if (v->vstransform)
+ {
+ v->ttmbf = get_bits(gb, 1);
+ if (v->ttmbf)
+ {
+ v->ttfrm = ttfrm_to_tt[get_bits(gb, 2)];
+ }
+ } else {
+ v->ttmbf = 1;
+ v->ttfrm = TT_8X8;
+ }
+ break;
+ }
+
+ /* AC Syntax */
+ v->c_ac_table_index = decode012(gb);
+ if (v->s.pict_type == I_TYPE || v->s.pict_type == BI_TYPE)
+ {
+ v->y_ac_table_index = decode012(gb);
+ }
+ /* DC Syntax */
+ v->s.dc_table_index = get_bits(gb, 1);
+ if (v->s.pict_type == I_TYPE && v->dquant) {
+ av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
+ vop_dquant_decoding(v);
+ }
+
+ v->bi_type = 0;
+ if(v->s.pict_type == BI_TYPE) {
+ v->s.pict_type = B_TYPE;
+ v->bi_type = 1;
+ }
+ return 0;
+}
+
+/***********************************************************************/
+/**
+ * @defgroup block VC-1 Block-level functions
+ * @see 7.1.4, p91 and 8.1.1.7, p(1)04
* @{
*/
/**
* @def GET_MQUANT
* @brief Get macroblock-level quantizer scale
- * @warning XXX: qdiff to the frame quant, not previous quant ?
- * @fixme XXX: Don't know how to initialize mquant otherwise in last case
*/
#define GET_MQUANT() \
if (v->dquantfrm) \
{ \
+ int edges = 0; \
if (v->dqprofile == DQPROFILE_ALL_MBS) \
{ \
if (v->dqbilevel) \
{ \
- mquant = (get_bits(gb, 1)) ? v->pq : v->altpq; \
+ mquant = (get_bits(gb, 1)) ? v->altpq : v->pq; \
} \
else \
{ \
else mquant = get_bits(gb, 5); \
} \
} \
- else mquant = v->pq; \
+ if(v->dqprofile == DQPROFILE_SINGLE_EDGE) \
+ edges = 1 << v->dqsbedge; \
+ else if(v->dqprofile == DQPROFILE_DOUBLE_EDGES) \
+ edges = (3 << v->dqsbedge) % 15; \
+ else if(v->dqprofile == DQPROFILE_FOUR_EDGES) \
+ edges = 15; \
+ if((edges&1) && !s->mb_x) \
+ mquant = v->altpq; \
+ if((edges&2) && s->first_slice_line) \
+ mquant = v->altpq; \
+ if((edges&4) && s->mb_x == (s->mb_width - 1)) \
+ mquant = v->altpq; \
+ if((edges&8) && s->mb_y == (s->mb_height - 1)) \
+ mquant = v->altpq; \
}
/**
* @see MVDATA decoding from 8.3.5.2, p(1)20
* @param _dmv_x Horizontal differential for decoded MV
* @param _dmv_y Vertical differential for decoded MV
- * @todo TODO: Use MpegEncContext arrays to store them
*/
#define GET_MVDATA(_dmv_x, _dmv_y) \
index = 1 + get_vlc2(gb, vc1_mv_diff_vlc[s->mv_table_index].table,\
/** Predict and set motion vector
*/
-static inline void vc1_pred_mv(MpegEncContext *s, int dmv_x, int dmv_y, int mv1, int r_x, int r_y)
+static inline void vc1_pred_mv(MpegEncContext *s, int n, int dmv_x, int dmv_y, int mv1, int r_x, int r_y, uint8_t* is_intra)
{
- int xy, wrap, off;
+ int xy, wrap, off = 0;
int16_t *A, *B, *C;
int px, py;
int sum;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
/* scale MV difference to be quad-pel */
dmv_x <<= 1 - s->quarter_sample;
dmv_y <<= 1 - s->quarter_sample;
wrap = s->b8_stride;
- xy = s->block_index[0];
+ xy = s->block_index[n];
- C = s->current_picture.motion_val[0][xy - (1 << mv1)];
- A = s->current_picture.motion_val[0][xy - (wrap << mv1)];
- off = (s->mb_x == (s->mb_width - 1)) ? -1 : 1;
- B = s->current_picture.motion_val[0][xy + ((off - wrap) << mv1)];
+ if(s->mb_intra){
+ s->mv[0][n][0] = s->current_picture.motion_val[0][xy][0] = 0;
+ s->mv[0][n][1] = s->current_picture.motion_val[0][xy][1] = 0;
+ if(mv1) { /* duplicate motion data for 1-MV block */
+ s->current_picture.motion_val[0][xy + 1][0] = 0;
+ s->current_picture.motion_val[0][xy + 1][1] = 0;
+ s->current_picture.motion_val[0][xy + wrap][0] = 0;
+ s->current_picture.motion_val[0][xy + wrap][1] = 0;
+ s->current_picture.motion_val[0][xy + wrap + 1][0] = 0;
+ s->current_picture.motion_val[0][xy + wrap + 1][1] = 0;
+ }
+ return;
+ }
+
+ C = s->current_picture.motion_val[0][xy - 1];
+ A = s->current_picture.motion_val[0][xy - wrap];
+ if(mv1)
+ off = (s->mb_x == (s->mb_width - 1)) ? -1 : 2;
+ else {
+ //in 4-MV mode different blocks have different B predictor position
+ switch(n){
+ case 0:
+ off = (s->mb_x > 0) ? -1 : 1;
+ break;
+ case 1:
+ off = (s->mb_x == (s->mb_width - 1)) ? -1 : 1;
+ break;
+ case 2:
+ off = 1;
+ break;
+ case 3:
+ off = -1;
+ }
+ }
+ B = s->current_picture.motion_val[0][xy - wrap + off];
- if(!s->first_slice_line) { // predictor A is not out of bounds
+ if(!s->first_slice_line || (n==2 || n==3)) { // predictor A is not out of bounds
if(s->mb_width == 1) {
px = A[0];
py = A[1];
px = mid_pred(A[0], B[0], C[0]);
py = mid_pred(A[1], B[1], C[1]);
}
- } else if(s->mb_x) { // predictor C is not out of bounds
+ } else if(s->mb_x || (n==1 || n==3)) { // predictor C is not out of bounds
px = C[0];
py = C[1];
} else {
px = py = 0;
}
- if(s->mb_intra) px = py = 0;
-
/* Pullback MV as specified in 8.3.5.3.4 */
{
int qx, qy, X, Y;
- qx = s->mb_x << 6; //FIXME: add real block coords for 4MV mode
- qy = s->mb_y << 6;
+ qx = (s->mb_x << 6) + ((n==1 || n==3) ? 32 : 0);
+ qy = (s->mb_y << 6) + ((n==2 || n==3) ? 32 : 0);
X = (s->mb_width << 6) - 4;
Y = (s->mb_height << 6) - 4;
if(mv1) {
if(qy + py > Y) py = Y - qy;
}
/* Calculate hybrid prediction as specified in 8.3.5.3.5 */
- if(!s->mb_intra && !s->first_slice_line && s->mb_x) {
- if(IS_INTRA(s->current_picture.mb_type[mb_pos - s->mb_stride]))
+ if((!s->first_slice_line || (n==2 || n==3)) && (s->mb_x || (n==1 || n==3))) {
+ if(is_intra[xy - wrap])
sum = ABS(px) + ABS(py);
else
sum = ABS(px - A[0]) + ABS(py - A[1]);
py = C[1];
}
} else {
- if(IS_INTRA(s->current_picture.mb_type[mb_pos - 1]))
+ if(is_intra[xy - 1])
sum = ABS(px) + ABS(py);
else
sum = ABS(px - C[0]) + ABS(py - C[1]);
}
}
/* store MV using signed modulus of MV range defined in 4.11 */
- s->mv[0][0][0] = s->current_picture.motion_val[0][xy][0] = ((px + dmv_x + r_x) & ((r_x << 1) - 1)) - r_x;
- s->mv[0][0][1] = s->current_picture.motion_val[0][xy][1] = ((py + dmv_y + r_y) & ((r_y << 1) - 1)) - r_y;
+ s->mv[0][n][0] = s->current_picture.motion_val[0][xy][0] = ((px + dmv_x + r_x) & ((r_x << 1) - 1)) - r_x;
+ s->mv[0][n][1] = s->current_picture.motion_val[0][xy][1] = ((py + dmv_y + r_y) & ((r_y << 1) - 1)) - r_y;
+ if(mv1) { /* duplicate motion data for 1-MV block */
+ s->current_picture.motion_val[0][xy + 1][0] = s->current_picture.motion_val[0][xy][0];
+ s->current_picture.motion_val[0][xy + 1][1] = s->current_picture.motion_val[0][xy][1];
+ s->current_picture.motion_val[0][xy + wrap][0] = s->current_picture.motion_val[0][xy][0];
+ s->current_picture.motion_val[0][xy + wrap][1] = s->current_picture.motion_val[0][xy][1];
+ s->current_picture.motion_val[0][xy + wrap + 1][0] = s->current_picture.motion_val[0][xy][0];
+ s->current_picture.motion_val[0][xy + wrap + 1][1] = s->current_picture.motion_val[0][xy][1];
+ }
+}
+
+/** Motion compensation for direct or interpolated blocks in B-frames
+ */
+static void vc1_interp_mc(VC1Context *v)
+{
+ MpegEncContext *s = &v->s;
+ DSPContext *dsp = &v->s.dsp;
+ uint8_t *srcY, *srcU, *srcV;
+ int dxy, uvdxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
+
+ if(!v->s.next_picture.data[0])return;
+
+ mx = s->mv[1][0][0];
+ my = s->mv[1][0][1];
+ uvmx = (mx + ((mx & 3) == 3)) >> 1;
+ uvmy = (my + ((my & 3) == 3)) >> 1;
+ srcY = s->next_picture.data[0];
+ srcU = s->next_picture.data[1];
+ srcV = s->next_picture.data[2];
+
+ src_x = s->mb_x * 16 + (mx >> 2);
+ src_y = s->mb_y * 16 + (my >> 2);
+ uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
+ uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
+
+ src_x = clip( src_x, -16, s->mb_width * 16);
+ src_y = clip( src_y, -16, s->mb_height * 16);
+ uvsrc_x = clip(uvsrc_x, -8, s->mb_width * 8);
+ uvsrc_y = clip(uvsrc_y, -8, s->mb_height * 8);
+
+ srcY += src_y * s->linesize + src_x;
+ srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
+ srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
+
+ /* for grayscale we should not try to read from unknown area */
+ if(s->flags & CODEC_FLAG_GRAY) {
+ srcU = s->edge_emu_buffer + 18 * s->linesize;
+ srcV = s->edge_emu_buffer + 18 * s->linesize;
+ }
+
+ if(v->rangeredfrm
+ || (unsigned)src_x > s->h_edge_pos - (mx&3) - 16
+ || (unsigned)src_y > s->v_edge_pos - (my&3) - 16){
+ uint8_t *uvbuf= s->edge_emu_buffer + 19 * s->linesize;
+
+ srcY -= s->mspel * (1 + s->linesize);
+ ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 17+s->mspel*2, 17+s->mspel*2,
+ src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
+ srcY = s->edge_emu_buffer;
+ ff_emulated_edge_mc(uvbuf , srcU, s->uvlinesize, 8+1, 8+1,
+ uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
+ ff_emulated_edge_mc(uvbuf + 16, srcV, s->uvlinesize, 8+1, 8+1,
+ uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
+ srcU = uvbuf;
+ srcV = uvbuf + 16;
+ /* if we deal with range reduction we need to scale source blocks */
+ if(v->rangeredfrm) {
+ int i, j;
+ uint8_t *src, *src2;
+
+ src = srcY;
+ for(j = 0; j < 17 + s->mspel*2; j++) {
+ for(i = 0; i < 17 + s->mspel*2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
+ src += s->linesize;
+ }
+ src = srcU; src2 = srcV;
+ for(j = 0; j < 9; j++) {
+ for(i = 0; i < 9; i++) {
+ src[i] = ((src[i] - 128) >> 1) + 128;
+ src2[i] = ((src2[i] - 128) >> 1) + 128;
+ }
+ src += s->uvlinesize;
+ src2 += s->uvlinesize;
+ }
+ }
+ srcY += s->mspel * (1 + s->linesize);
+ }
+
+ if(v->fastuvmc) {
+ uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
+ uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
+ }
+
+ mx >>= 1;
+ my >>= 1;
+ dxy = ((my & 1) << 1) | (mx & 1);
+
+ dsp->avg_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
+
+ if(s->flags & CODEC_FLAG_GRAY) return;
+ /* Chroma MC always uses qpel blilinear */
+ uvdxy = ((uvmy & 3) << 2) | (uvmx & 3);
+ uvmx = (uvmx&3)<<1;
+ uvmy = (uvmy&3)<<1;
+ dsp->avg_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
+ dsp->avg_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
+}
+
+static always_inline int scale_mv(int value, int bfrac, int inv, int qs)
+{
+ int n = bfrac;
+
+#if B_FRACTION_DEN==256
+ if(inv)
+ n -= 256;
+ if(!qs)
+ return 2 * ((value * n + 255) >> 9);
+ return (value * n + 128) >> 8;
+#else
+ if(inv)
+ n -= B_FRACTION_DEN;
+ if(!qs)
+ return 2 * ((value * n + B_FRACTION_DEN - 1) / (2 * B_FRACTION_DEN));
+ return (value * n + B_FRACTION_DEN/2) / B_FRACTION_DEN;
+#endif
+}
+
+/** Reconstruct motion vector for B-frame and do motion compensation
+ */
+static inline void vc1_b_mc(VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mode)
+{
+ int t;
+
+ if(v->use_ic) {
+ v->mv_mode2 = v->mv_mode;
+ v->mv_mode = MV_PMODE_INTENSITY_COMP;
+ }
+ if(direct) {
+ vc1_mc_1mv(v, 0);
+ vc1_interp_mc(v);
+ if(v->use_ic) v->mv_mode = v->mv_mode2;
+ return;
+ }
+ if(mode == BMV_TYPE_INTERPOLATED) {
+ vc1_mc_1mv(v, 0);
+ vc1_interp_mc(v);
+ if(v->use_ic) v->mv_mode = v->mv_mode2;
+ return;
+ }
+
+ if(v->use_ic && (mode == BMV_TYPE_BACKWARD)) v->mv_mode = v->mv_mode2;
+ vc1_mc_1mv(v, (mode == BMV_TYPE_BACKWARD));
+ if(v->use_ic) v->mv_mode = v->mv_mode2;
+}
+
+static inline void vc1_pred_b_mv(VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mvtype)
+{
+ MpegEncContext *s = &v->s;
+ int xy, wrap, off = 0;
+ int16_t *A, *B, *C;
+ int px, py;
+ int sum;
+ int r_x, r_y;
+ const uint8_t *is_intra = v->mb_type[0];
+
+ r_x = v->range_x;
+ r_y = v->range_y;
+ /* scale MV difference to be quad-pel */
+ dmv_x[0] <<= 1 - s->quarter_sample;
+ dmv_y[0] <<= 1 - s->quarter_sample;
+ dmv_x[1] <<= 1 - s->quarter_sample;
+ dmv_y[1] <<= 1 - s->quarter_sample;
+
+ wrap = s->b8_stride;
+ xy = s->block_index[0];
+
+ if(s->mb_intra) {
+ s->current_picture.motion_val[0][xy][0] =
+ s->current_picture.motion_val[0][xy][1] =
+ s->current_picture.motion_val[1][xy][0] =
+ s->current_picture.motion_val[1][xy][1] = 0;
+ return;
+ }
+ s->mv[0][0][0] = scale_mv(s->next_picture.motion_val[1][xy][0], v->bfraction, 0, s->quarter_sample);
+ s->mv[0][0][1] = scale_mv(s->next_picture.motion_val[1][xy][1], v->bfraction, 0, s->quarter_sample);
+ s->mv[1][0][0] = scale_mv(s->next_picture.motion_val[1][xy][0], v->bfraction, 1, s->quarter_sample);
+ s->mv[1][0][1] = scale_mv(s->next_picture.motion_val[1][xy][1], v->bfraction, 1, s->quarter_sample);
+ if(direct) {
+ s->current_picture.motion_val[0][xy][0] = s->mv[0][0][0];
+ s->current_picture.motion_val[0][xy][1] = s->mv[0][0][1];
+ s->current_picture.motion_val[1][xy][0] = s->mv[1][0][0];
+ s->current_picture.motion_val[1][xy][1] = s->mv[1][0][1];
+ return;
+ }
+
+ if((mvtype == BMV_TYPE_FORWARD) || (mvtype == BMV_TYPE_INTERPOLATED)) {
+ C = s->current_picture.motion_val[0][xy - 2];
+ A = s->current_picture.motion_val[0][xy - wrap*2];
+ off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2;
+ B = s->current_picture.motion_val[0][xy - wrap*2 + off];
+
+ if(!s->first_slice_line) { // predictor A is not out of bounds
+ if(s->mb_width == 1) {
+ px = A[0];
+ py = A[1];
+ } else {
+ px = mid_pred(A[0], B[0], C[0]);
+ py = mid_pred(A[1], B[1], C[1]);
+ }
+ } else if(s->mb_x) { // predictor C is not out of bounds
+ px = C[0];
+ py = C[1];
+ } else {
+ px = py = 0;
+ }
+ /* Pullback MV as specified in 8.3.5.3.4 */
+ {
+ int qx, qy, X, Y;
+ if(v->profile < PROFILE_ADVANCED) {
+ qx = (s->mb_x << 5);
+ qy = (s->mb_y << 5);
+ X = (s->mb_width << 5) - 4;
+ Y = (s->mb_height << 5) - 4;
+ if(qx + px < -28) px = -28 - qx;
+ if(qy + py < -28) py = -28 - qy;
+ if(qx + px > X) px = X - qx;
+ if(qy + py > Y) py = Y - qy;
+ } else {
+ qx = (s->mb_x << 6);
+ qy = (s->mb_y << 6);
+ X = (s->mb_width << 6) - 4;
+ Y = (s->mb_height << 6) - 4;
+ if(qx + px < -60) px = -60 - qx;
+ if(qy + py < -60) py = -60 - qy;
+ if(qx + px > X) px = X - qx;
+ if(qy + py > Y) py = Y - qy;
+ }
+ }
+ /* Calculate hybrid prediction as specified in 8.3.5.3.5 */
+ if(0 && !s->first_slice_line && s->mb_x) {
+ if(is_intra[xy - wrap])
+ sum = ABS(px) + ABS(py);
+ else
+ sum = ABS(px - A[0]) + ABS(py - A[1]);
+ if(sum > 32) {
+ if(get_bits1(&s->gb)) {
+ px = A[0];
+ py = A[1];
+ } else {
+ px = C[0];
+ py = C[1];
+ }
+ } else {
+ if(is_intra[xy - 2])
+ sum = ABS(px) + ABS(py);
+ else
+ sum = ABS(px - C[0]) + ABS(py - C[1]);
+ if(sum > 32) {
+ if(get_bits1(&s->gb)) {
+ px = A[0];
+ py = A[1];
+ } else {
+ px = C[0];
+ py = C[1];
+ }
+ }
+ }
+ }
+ /* store MV using signed modulus of MV range defined in 4.11 */
+ s->mv[0][0][0] = ((px + dmv_x[0] + r_x) & ((r_x << 1) - 1)) - r_x;
+ s->mv[0][0][1] = ((py + dmv_y[0] + r_y) & ((r_y << 1) - 1)) - r_y;
+ }
+ if((mvtype == BMV_TYPE_BACKWARD) || (mvtype == BMV_TYPE_INTERPOLATED)) {
+ C = s->current_picture.motion_val[1][xy - 2];
+ A = s->current_picture.motion_val[1][xy - wrap*2];
+ off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2;
+ B = s->current_picture.motion_val[1][xy - wrap*2 + off];
+
+ if(!s->first_slice_line) { // predictor A is not out of bounds
+ if(s->mb_width == 1) {
+ px = A[0];
+ py = A[1];
+ } else {
+ px = mid_pred(A[0], B[0], C[0]);
+ py = mid_pred(A[1], B[1], C[1]);
+ }
+ } else if(s->mb_x) { // predictor C is not out of bounds
+ px = C[0];
+ py = C[1];
+ } else {
+ px = py = 0;
+ }
+ /* Pullback MV as specified in 8.3.5.3.4 */
+ {
+ int qx, qy, X, Y;
+ if(v->profile < PROFILE_ADVANCED) {
+ qx = (s->mb_x << 5);
+ qy = (s->mb_y << 5);
+ X = (s->mb_width << 5) - 4;
+ Y = (s->mb_height << 5) - 4;
+ if(qx + px < -28) px = -28 - qx;
+ if(qy + py < -28) py = -28 - qy;
+ if(qx + px > X) px = X - qx;
+ if(qy + py > Y) py = Y - qy;
+ } else {
+ qx = (s->mb_x << 6);
+ qy = (s->mb_y << 6);
+ X = (s->mb_width << 6) - 4;
+ Y = (s->mb_height << 6) - 4;
+ if(qx + px < -60) px = -60 - qx;
+ if(qy + py < -60) py = -60 - qy;
+ if(qx + px > X) px = X - qx;
+ if(qy + py > Y) py = Y - qy;
+ }
+ }
+ /* Calculate hybrid prediction as specified in 8.3.5.3.5 */
+ if(0 && !s->first_slice_line && s->mb_x) {
+ if(is_intra[xy - wrap])
+ sum = ABS(px) + ABS(py);
+ else
+ sum = ABS(px - A[0]) + ABS(py - A[1]);
+ if(sum > 32) {
+ if(get_bits1(&s->gb)) {
+ px = A[0];
+ py = A[1];
+ } else {
+ px = C[0];
+ py = C[1];
+ }
+ } else {
+ if(is_intra[xy - 2])
+ sum = ABS(px) + ABS(py);
+ else
+ sum = ABS(px - C[0]) + ABS(py - C[1]);
+ if(sum > 32) {
+ if(get_bits1(&s->gb)) {
+ px = A[0];
+ py = A[1];
+ } else {
+ px = C[0];
+ py = C[1];
+ }
+ }
+ }
+ }
+ /* store MV using signed modulus of MV range defined in 4.11 */
+
+ s->mv[1][0][0] = ((px + dmv_x[1] + r_x) & ((r_x << 1) - 1)) - r_x;
+ s->mv[1][0][1] = ((py + dmv_y[1] + r_y) & ((r_y << 1) - 1)) - r_y;
+ }
+ s->current_picture.motion_val[0][xy][0] = s->mv[0][0][0];
+ s->current_picture.motion_val[0][xy][1] = s->mv[0][0][1];
+ s->current_picture.motion_val[1][xy][0] = s->mv[1][0][0];
+ s->current_picture.motion_val[1][xy][1] = s->mv[1][0][1];
}
/** Get predicted DC value for I-frames only
if (pq < 9 || !overlap)
{
/* Set outer values */
- if (!s->mb_y && (n!=2 && n!=3)) b=a=dcpred[scale];
+ if (s->first_slice_line && (n!=2 && n!=3)) b=a=dcpred[scale];
if (s->mb_x == 0 && (n!=1 && n!=3)) b=c=dcpred[scale];
}
else
{
/* Set outer values */
- if (!s->mb_y && (n!=2 && n!=3)) b=a=0;
+ if (s->first_slice_line && (n!=2 && n!=3)) b=a=0;
if (s->mb_x == 0 && (n!=1 && n!=3)) b=c=0;
}
int a, b, c, wrap, pred, scale;
int16_t *dc_val;
int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- int mb_pos2, q1, q2;
+ int q1, q2 = 0;
/* find prediction - wmv3_dc_scale always used here in fact */
if (n < 4) scale = s->y_dc_scale;
c = dc_val[ - 1];
b = dc_val[ - 1 - wrap];
a = dc_val[ - wrap];
+ /* scale predictors if needed */
+ q1 = s->current_picture.qscale_table[mb_pos];
+ if(c_avail && (n!= 1 && n!=3)) {
+ q2 = s->current_picture.qscale_table[mb_pos - 1];
+ if(q2 && q2 != q1)
+ c = (c * s->y_dc_scale_table[q2] * vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
+ }
+ if(a_avail && (n!= 2 && n!=3)) {
+ q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
+ if(q2 && q2 != q1)
+ a = (a * s->y_dc_scale_table[q2] * vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
+ }
+ if(a_avail && c_avail && (n!=3)) {
+ int off = mb_pos;
+ if(n != 1) off--;
+ if(n != 2) off -= s->mb_stride;
+ q2 = s->current_picture.qscale_table[off];
+ if(q2 && q2 != q1)
+ b = (b * s->y_dc_scale_table[q2] * vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
+ }
if(a_avail && c_avail) {
if(abs(a - b) <= abs(b - c)) {
*dir_ptr = 1;//left
}
- /* scale coeffs if needed */
- mb_pos2 = mb_pos - *dir_ptr - (1 - *dir_ptr) * s->mb_stride;
- q1 = s->current_picture.qscale_table[mb_pos];
- q2 = s->current_picture.qscale_table[mb_pos2];
- if(0 && q1 && q2 && q1 != q2) {
- q1 = s->y_dc_scale_table[q1];
- q2 = s->y_dc_scale_table[q2];
- pred = (pred * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
-
/* update predictor */
*dc_val_ptr = &dc_val[0];
return pred;
/**
* @defgroup std_mb VC1 Macroblock-level functions in Simple/Main Profiles
* @see 7.1.4, p91 and 8.1.1.7, p(1)04
- * @todo TODO: Integrate to MpegEncContext facilities
* @{
*/
*dc_val = dcdiff;
/* Store the quantized DC coeff, used for prediction */
-
if (n < 4) {
block[0] = dcdiff * s->y_dc_scale;
} else {
if(dc_pred_dir) { //left
for(k = 1; k < 8; k++) {
block[k << 3] = ac_val[k] * scale;
- if(!v->pquantizer)
+ if(!v->pquantizer && block[k << 3])
block[k << 3] += (block[k << 3] < 0) ? -v->pq : v->pq;
}
} else { //top
for(k = 1; k < 8; k++) {
block[k] = ac_val[k + 8] * scale;
- if(!v->pquantizer)
+ if(!v->pquantizer && block[k])
block[k] += (block[k] < 0) ? -v->pq : v->pq;
}
}
return 0;
}
+/** Decode intra block in intra frames - should be faster than decode_intra_block
+ * @param v VC1Context
+ * @param block block to decode
+ * @param coded are AC coeffs present or not
+ * @param codingset set of VLC to decode data
+ */
+static int vc1_decode_i_block_adv(VC1Context *v, DCTELEM block[64], int n, int coded, int codingset, int mquant)
+{
+ GetBitContext *gb = &v->s.gb;
+ MpegEncContext *s = &v->s;
+ int dc_pred_dir = 0; /* Direction of the DC prediction used */
+ int run_diff, i;
+ int16_t *dc_val;
+ int16_t *ac_val, *ac_val2;
+ int dcdiff;
+ int a_avail = v->a_avail, c_avail = v->c_avail;
+ int use_pred = s->ac_pred;
+ int scale;
+ int q1, q2 = 0;
+ int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
+
+ /* Get DC differential */
+ if (n < 4) {
+ dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
+ } else {
+ dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
+ }
+ if (dcdiff < 0){
+ av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n");
+ return -1;
+ }
+ if (dcdiff)
+ {
+ if (dcdiff == 119 /* ESC index value */)
+ {
+ /* TODO: Optimize */
+ if (mquant == 1) dcdiff = get_bits(gb, 10);
+ else if (mquant == 2) dcdiff = get_bits(gb, 9);
+ else dcdiff = get_bits(gb, 8);
+ }
+ else
+ {
+ if (mquant == 1)
+ dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3;
+ else if (mquant == 2)
+ dcdiff = (dcdiff<<1) + get_bits(gb, 1) - 1;
+ }
+ if (get_bits(gb, 1))
+ dcdiff = -dcdiff;
+ }
+
+ /* Prediction */
+ dcdiff += vc1_pred_dc(&v->s, v->overlap, mquant, n, v->a_avail, v->c_avail, &dc_val, &dc_pred_dir);
+ *dc_val = dcdiff;
+
+ /* Store the quantized DC coeff, used for prediction */
+ if (n < 4) {
+ block[0] = dcdiff * s->y_dc_scale;
+ } else {
+ block[0] = dcdiff * s->c_dc_scale;
+ }
+ /* Skip ? */
+ run_diff = 0;
+ i = 0;
+
+ //AC Decoding
+ i = 1;
+
+ /* check if AC is needed at all and adjust direction if needed */
+ if(!a_avail) dc_pred_dir = 1;
+ if(!c_avail) dc_pred_dir = 0;
+ if(!a_avail && !c_avail) use_pred = 0;
+ ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
+ ac_val2 = ac_val;
+
+ scale = mquant * 2 + v->halfpq;
+
+ if(dc_pred_dir) //left
+ ac_val -= 16;
+ else //top
+ ac_val -= 16 * s->block_wrap[n];
+
+ q1 = s->current_picture.qscale_table[mb_pos];
+ if(dc_pred_dir && c_avail) q2 = s->current_picture.qscale_table[mb_pos - 1];
+ if(!dc_pred_dir && a_avail) q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
+ if(n && n<4) q2 = q1;
+
+ if(coded) {
+ int last = 0, skip, value;
+ const int8_t *zz_table;
+ int k;
+
+ if(v->s.ac_pred) {
+ if(!dc_pred_dir)
+ zz_table = vc1_horizontal_zz;
+ else
+ zz_table = vc1_vertical_zz;
+ } else
+ zz_table = vc1_normal_zz;
+
+ while (!last) {
+ vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
+ i += skip;
+ if(i > 63)
+ break;
+ block[zz_table[i++]] = value;
+ }
+
+ /* apply AC prediction if needed */
+ if(use_pred) {
+ /* scale predictors if needed*/
+ if(q2 && q1!=q2) {
+ q1 = q1 * 2 - 1;
+ q2 = q2 * 2 - 1;
+
+ if(dc_pred_dir) { //left
+ for(k = 1; k < 8; k++)
+ block[k << 3] += (ac_val[k] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
+ } else { //top
+ for(k = 1; k < 8; k++)
+ block[k] += (ac_val[k + 8] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
+ }
+ } else {
+ if(dc_pred_dir) { //left
+ for(k = 1; k < 8; k++)
+ block[k << 3] += ac_val[k];
+ } else { //top
+ for(k = 1; k < 8; k++)
+ block[k] += ac_val[k + 8];
+ }
+ }
+ }
+ /* save AC coeffs for further prediction */
+ for(k = 1; k < 8; k++) {
+ ac_val2[k] = block[k << 3];
+ ac_val2[k + 8] = block[k];
+ }
+
+ /* scale AC coeffs */
+ for(k = 1; k < 64; k++)
+ if(block[k]) {
+ block[k] *= scale;
+ if(!v->pquantizer)
+ block[k] += (block[k] < 0) ? -mquant : mquant;
+ }
+
+ if(use_pred) i = 63;
+ } else { // no AC coeffs
+ int k;
+
+ memset(ac_val2, 0, 16 * 2);
+ if(dc_pred_dir) {//left
+ if(use_pred) {
+ memcpy(ac_val2, ac_val, 8 * 2);
+ if(q2 && q1!=q2) {
+ q1 = q1 * 2 - 1;
+ q2 = q2 * 2 - 1;
+ for(k = 1; k < 8; k++)
+ ac_val2[k] = (ac_val2[k] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
+ }
+ }
+ } else {//top
+ if(use_pred) {
+ memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
+ if(q2 && q1!=q2) {
+ q1 = q1 * 2 - 1;
+ q2 = q2 * 2 - 1;
+ for(k = 1; k < 8; k++)
+ ac_val2[k + 8] = (ac_val2[k + 8] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
+ }
+ }
+ }
+
+ /* apply AC prediction if needed */
+ if(use_pred) {
+ if(dc_pred_dir) { //left
+ for(k = 1; k < 8; k++) {
+ block[k << 3] = ac_val2[k] * scale;
+ if(!v->pquantizer && block[k << 3])
+ block[k << 3] += (block[k << 3] < 0) ? -mquant : mquant;
+ }
+ } else { //top
+ for(k = 1; k < 8; k++) {
+ block[k] = ac_val2[k + 8] * scale;
+ if(!v->pquantizer && block[k])
+ block[k] += (block[k] < 0) ? -mquant : mquant;
+ }
+ }
+ i = 63;
+ }
+ }
+ s->block_last_index[n] = i;
+
+ return 0;
+}
+
/** Decode intra block in inter frames - more generic version than vc1_decode_i_block
* @param v VC1Context
* @param block block to decode
int dcdiff;
int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
int a_avail = v->a_avail, c_avail = v->c_avail;
+ int use_pred = s->ac_pred;
+ int scale;
+ int q1, q2 = 0;
/* XXX: Guard against dumb values of mquant */
mquant = (mquant < 1) ? 0 : ( (mquant>31) ? 31 : mquant );
/* Skip ? */
run_diff = 0;
i = 0;
- if (!coded) {
- goto not_coded;
- }
//AC Decoding
i = 1;
- {
+ /* check if AC is needed at all and adjust direction if needed */
+ if(!a_avail) dc_pred_dir = 1;
+ if(!c_avail) dc_pred_dir = 0;
+ if(!a_avail && !c_avail) use_pred = 0;
+ ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
+ ac_val2 = ac_val;
+
+ scale = mquant * 2 + v->halfpq;
+
+ if(dc_pred_dir) //left
+ ac_val -= 16;
+ else //top
+ ac_val -= 16 * s->block_wrap[n];
+
+ q1 = s->current_picture.qscale_table[mb_pos];
+ if(dc_pred_dir && c_avail) q2 = s->current_picture.qscale_table[mb_pos - 1];
+ if(!dc_pred_dir && a_avail) q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
+ if(n && n<4) q2 = q1;
+
+ if(coded) {
int last = 0, skip, value;
const int8_t *zz_table;
- int scale;
int k;
- scale = mquant * 2;
-
zz_table = vc1_simple_progressive_8x8_zz;
- ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
- ac_val2 = ac_val;
- if(dc_pred_dir) //left
- ac_val -= 16;
- else //top
- ac_val -= 16 * s->block_wrap[n];
-
while (!last) {
vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
i += skip;
}
/* apply AC prediction if needed */
- if(s->ac_pred && (v->a_avail || v->c_avail)) {
+ if(use_pred) {
/* scale predictors if needed*/
- int mb_pos2, q1, q2;
-
- mb_pos2 = mb_pos - dc_pred_dir - (1 - dc_pred_dir) * s->mb_stride;
- q1 = s->current_picture.qscale_table[mb_pos];
- q2 = s->current_picture.qscale_table[mb_pos2];
-
- if(!c_avail) {
- memset(ac_val, 0, 8 * sizeof(ac_val[0]));
- dc_pred_dir = 0;
- }
- if(!a_avail) {
- memset(ac_val + 8, 0, 8 * sizeof(ac_val[0]));
- dc_pred_dir = 1;
- }
- if(q2 && q1 != q2) {
+ if(q2 && q1!=q2) {
q1 = q1 * 2 - 1;
q2 = q2 * 2 - 1;
block[k] += (block[k] < 0) ? -mquant : mquant;
}
- if(s->ac_pred) i = 63;
- }
-
-not_coded:
- if(!coded) {
- int k, scale;
- ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
- ac_val2 = ac_val;
-
- if(!c_avail) {
- memset(ac_val, 0, 8 * sizeof(ac_val[0]));
- dc_pred_dir = 0;
- }
- if(!a_avail) {
- memset(ac_val + 8, 0, 8 * sizeof(ac_val[0]));
- dc_pred_dir = 1;
- }
+ if(use_pred) i = 63;
+ } else { // no AC coeffs
+ int k;
- scale = mquant * 2;
memset(ac_val2, 0, 16 * 2);
if(dc_pred_dir) {//left
- ac_val -= 16;
- if(s->ac_pred && (v->a_avail || v->c_avail))
+ if(use_pred) {
memcpy(ac_val2, ac_val, 8 * 2);
+ if(q2 && q1!=q2) {
+ q1 = q1 * 2 - 1;
+ q2 = q2 * 2 - 1;
+ for(k = 1; k < 8; k++)
+ ac_val2[k] = (ac_val2[k] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
+ }
+ }
} else {//top
- ac_val -= 16 * s->block_wrap[n];
- if(s->ac_pred && (v->a_avail || v->c_avail))
+ if(use_pred) {
memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
+ if(q2 && q1!=q2) {
+ q1 = q1 * 2 - 1;
+ q2 = q2 * 2 - 1;
+ for(k = 1; k < 8; k++)
+ ac_val2[k + 8] = (ac_val2[k + 8] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
+ }
+ }
}
/* apply AC prediction if needed */
- if(s->ac_pred && (v->a_avail || v->c_avail)) {
+ if(use_pred) {
if(dc_pred_dir) { //left
for(k = 1; k < 8; k++) {
- block[k << 3] = ac_val[k] * scale;
- if(!v->pquantizer)
+ block[k << 3] = ac_val2[k] * scale;
+ if(!v->pquantizer && block[k << 3])
block[k << 3] += (block[k << 3] < 0) ? -mquant : mquant;
}
} else { //top
for(k = 1; k < 8; k++) {
- block[k] = ac_val[k + 8] * scale;
- if(!v->pquantizer)
+ block[k] = ac_val2[k + 8] * scale;
+ if(!v->pquantizer && block[k])
block[k] += (block[k] < 0) ? -mquant : mquant;
}
}
if(ttblk == TT_8X4_TOP || ttblk == TT_8X4_BOTTOM) ttblk = TT_8X4;
if(ttblk == TT_4X8_RIGHT || ttblk == TT_4X8_LEFT) ttblk = TT_4X8;
}
- scale = 2 * mquant;
+ scale = 2 * mquant + v->halfpq;
// convert transforms like 8X4_TOP to generic TT and SUBBLKPAT
if(ttblk == TT_8X4_TOP || ttblk == TT_8X4_BOTTOM) {
- ttblk = TT_8X4;
subblkpat = 2 - (ttblk == TT_8X4_TOP);
+ ttblk = TT_8X4;
}
if(ttblk == TT_4X8_RIGHT || ttblk == TT_4X8_LEFT) {
- ttblk = TT_4X8;
subblkpat = 2 - (ttblk == TT_4X8_LEFT);
+ ttblk = TT_4X8;
}
switch(ttblk) {
case TT_8X8:
break;
idx = vc1_simple_progressive_8x8_zz[i++];
block[idx] = value * scale;
+ if(!v->pquantizer)
+ block[idx] += (block[idx] < 0) ? -mquant : mquant;
}
- vc1_inv_trans(block, 8, 8);
+ s->dsp.vc1_inv_trans_8x8(block);
break;
case TT_4X4:
for(j = 0; j < 4; j++) {
break;
idx = vc1_simple_progressive_4x4_zz[i++];
block[idx + off] = value * scale;
+ if(!v->pquantizer)
+ block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant;
}
if(!(subblkpat & (1 << (3 - j))))
- vc1_inv_trans(block + off, 4, 4);
+ s->dsp.vc1_inv_trans_4x4(block, j);
}
break;
case TT_8X4:
i += skip;
if(i > 31)
break;
- idx = vc1_simple_progressive_8x4_zz[i++];
+ if(v->profile < PROFILE_ADVANCED)
+ idx = vc1_simple_progressive_8x4_zz[i++];
+ else
+ idx = vc1_adv_progressive_8x4_zz[i++];
block[idx + off] = value * scale;
+ if(!v->pquantizer)
+ block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant;
}
if(!(subblkpat & (1 << (1 - j))))
- vc1_inv_trans(block + off, 8, 4);
+ s->dsp.vc1_inv_trans_8x4(block, j);
}
break;
case TT_4X8:
i += skip;
if(i > 31)
break;
- idx = vc1_simple_progressive_4x8_zz[i++];
+ if(v->profile < PROFILE_ADVANCED)
+ idx = vc1_simple_progressive_4x8_zz[i++];
+ else
+ idx = vc1_adv_progressive_4x8_zz[i++];
block[idx + off] = value * scale;
+ if(!v->pquantizer)
+ block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant;
}
if(!(subblkpat & (1 << (1 - j))))
- vc1_inv_trans(block + off, 4, 8);
+ s->dsp.vc1_inv_trans_4x8(block, j);
}
break;
}
/** Decode one P-frame MB (in Simple/Main profile)
- * @todo TODO: Extend to AP
- * @fixme FIXME: DC value for inter blocks not set
*/
-static int vc1_decode_p_mb(VC1Context *v, DCTELEM block[6][64])
+static int vc1_decode_p_mb(VC1Context *v)
{
MpegEncContext *s = &v->s;
GetBitContext *gb = &s->gb;
int i, j;
int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
int cbp; /* cbp decoding stuff */
- int hybrid_pred; /* Prediction types */
int mqdiff, mquant; /* MB quantization */
- int ttmb = v->ttmb; /* MB Transform type */
+ int ttmb = v->ttfrm; /* MB Transform type */
int status;
static const int size_table[6] = { 0, 2, 3, 4, 5, 8 },
if (v->skip_is_raw)
skipped = get_bits1(gb);
else
- skipped = v->skip_mb_plane[mb_pos];
+ skipped = v->s.mbskip_table[mb_pos];
+
+ s->dsp.clear_blocks(s->block[0]);
if (!fourmv) /* 1MV mode */
{
{
GET_MVDATA(dmv_x, dmv_y);
+ if (s->mb_intra) {
+ s->current_picture.motion_val[1][s->block_index[0]][0] = 0;
+ s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
+ }
s->current_picture.mb_type[mb_pos] = s->mb_intra ? MB_TYPE_INTRA : MB_TYPE_16x16;
- vc1_pred_mv(s, dmv_x, dmv_y, 1, v->range_x, v->range_y);
+ vc1_pred_mv(s, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0]);
/* FIXME Set DC val for inter block ? */
if (s->mb_intra && !mb_has_coeffs)
if (!v->ttmbf && !s->mb_intra && mb_has_coeffs)
ttmb = get_vlc2(gb, vc1_ttmb_vlc[v->tt_index].table,
VC1_TTMB_VLC_BITS, 2);
- s->dsp.clear_blocks(block[0]);
- vc1_mc_1mv(v);
+ if(!s->mb_intra) vc1_mc_1mv(v, 0);
dst_idx = 0;
for (i=0; i<6; i++)
{
dst_idx += i >> 2;
val = ((cbp >> (5 - i)) & 1);
off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
+ v->mb_type[0][s->block_index[i]] = s->mb_intra;
if(s->mb_intra) {
/* check if prediction blocks A and C are available */
v->a_avail = v->c_avail = 0;
- if((i == 2 || i == 3) || (s->mb_y && IS_INTRA(s->current_picture.mb_type[mb_pos - s->mb_stride])))
- v->a_avail = 1;
- if((i == 1 || i == 3) || (s->mb_x && IS_INTRA(s->current_picture.mb_type[mb_pos - 1])))
- v->c_avail = 1;
-
- vc1_decode_intra_block(v, block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
- vc1_inv_trans(block[i], 8, 8);
- for(j = 0; j < 64; j++) block[i][j] += 128;
- s->dsp.put_pixels_clamped(block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
- /* TODO: proper loop filtering */
+ if(i == 2 || i == 3 || !s->first_slice_line)
+ v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];
+ if(i == 1 || i == 3 || s->mb_x)
+ v->c_avail = v->mb_type[0][s->block_index[i] - 1];
+
+ vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
+ if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
+ s->dsp.vc1_inv_trans_8x8(s->block[i]);
+ if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
+ for(j = 0; j < 64; j++) s->block[i][j] += 128;
+ s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
if(v->pq >= 9 && v->overlap) {
if(v->a_avail)
- s->dsp.h263_v_loop_filter(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), s->y_dc_scale);
+ s->dsp.vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), (i<4) ? ((i&1)>>1) : (s->mb_y&1));
if(v->c_avail)
- s->dsp.h263_h_loop_filter(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), s->y_dc_scale);
+ s->dsp.vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), (i<4) ? (i&1) : (s->mb_x&1));
}
} else if(val) {
- vc1_decode_p_block(v, block[i], i, mquant, ttmb, first_block);
+ vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block);
if(!v->ttmbf && ttmb < 8) ttmb = -1;
first_block = 0;
- s->dsp.add_pixels_clamped(block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
+ if((i<4) || !(s->flags & CODEC_FLAG_GRAY))
+ s->dsp.add_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
}
}
}
else //Skipped
{
s->mb_intra = 0;
+ for(i = 0; i < 6; i++) {
+ v->mb_type[0][s->block_index[i]] = 0;
+ s->dc_val[0][s->block_index[i]] = 0;
+ }
s->current_picture.mb_type[mb_pos] = MB_TYPE_SKIP;
- vc1_pred_mv(s, 0, 0, 1, v->range_x, v->range_y);
- vc1_mc_1mv(v);
+ s->current_picture.qscale_table[mb_pos] = 0;
+ vc1_pred_mv(s, 0, 0, 0, 1, v->range_x, v->range_y, v->mb_type[0]);
+ vc1_mc_1mv(v, 0);
return 0;
}
} //1MV mode
else //4MV mode
- {//FIXME: looks not conforming to standard and is not even theoretically complete
+ {
if (!skipped /* unskipped MB */)
{
- int blk_intra[4], blk_coded[4];
+ int intra_count = 0, coded_inter = 0;
+ int is_intra[6], is_coded[6];
/* Get CBPCY */
cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
- for (i=0; i<4; i++)
+ for (i=0; i<6; i++)
{
val = ((cbp >> (5 - i)) & 1);
- blk_intra[i] = 0;
- blk_coded[i] = val;
- if(val) {
- GET_MVDATA(dmv_x, dmv_y);
- blk_intra[i] = s->mb_intra;
+ s->dc_val[0][s->block_index[i]] = 0;
+ s->mb_intra = 0;
+ if(i < 4) {
+ dmv_x = dmv_y = 0;
+ s->mb_intra = 0;
+ mb_has_coeffs = 0;
+ if(val) {
+ GET_MVDATA(dmv_x, dmv_y);
+ }
+ vc1_pred_mv(s, i, dmv_x, dmv_y, 0, v->range_x, v->range_y, v->mb_type[0]);
+ if(!s->mb_intra) vc1_mc_4mv_luma(v, i);
+ intra_count += s->mb_intra;
+ is_intra[i] = s->mb_intra;
+ is_coded[i] = mb_has_coeffs;
+ }
+ if(i&4){
+ is_intra[i] = (intra_count >= 3);
+ is_coded[i] = val;
}
- if (v->mv_mode == MV_PMODE_MIXED_MV /* Hybrid pred */)
- hybrid_pred = get_bits(gb, 1);
+ if(i == 4) vc1_mc_4mv_chroma(v);
+ v->mb_type[0][s->block_index[i]] = is_intra[i];
+ if(!coded_inter) coded_inter = !is_intra[i] & is_coded[i];
+ }
+ // if there are no coded blocks then don't do anything more
+ if(!intra_count && !coded_inter) return 0;
+ dst_idx = 0;
+ GET_MQUANT();
+ s->current_picture.qscale_table[mb_pos] = mquant;
+ /* test if block is intra and has pred */
+ {
+ int intrapred = 0;
+ for(i=0; i<6; i++)
+ if(is_intra[i]) {
+ if(((!s->first_slice_line || (i==2 || i==3)) && v->mb_type[0][s->block_index[i] - s->block_wrap[i]])
+ || ((s->mb_x || (i==1 || i==3)) && v->mb_type[0][s->block_index[i] - 1])) {
+ intrapred = 1;
+ break;
+ }
+ }
+ if(intrapred)s->ac_pred = get_bits(gb, 1);
+ else s->ac_pred = 0;
}
- if((blk_intra[0] | blk_intra[1] | blk_intra[2] | blk_intra[3]) ||
- (blk_coded[0] | blk_coded[1] | blk_coded[2] | blk_coded[3])) {
- GET_MQUANT();
-
- if (s->mb_intra /* One of the 4 blocks is intra */
- /* non-zero pred for that block */)
- s->ac_pred = get_bits(gb, 1);
- if (!v->ttmbf)
- ttmb = get_vlc2(gb, vc1_ttmb_vlc[v->tt_index].table,
- VC1_TTMB_VLC_BITS, 12);
- for(i = 0; i < 6; i++) {
- val = ((cbp >> (5 - i)) & 1);
- if(i & 4 || blk_intra[i] || val) {
- if(i < 4 && blk_intra[i])
- status = vc1_decode_intra_block(v, block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
- else
- status = vc1_decode_p_block(v, block[i], i, mquant, ttmb, 0);
+ if (!v->ttmbf && coded_inter)
+ ttmb = get_vlc2(gb, vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
+ for (i=0; i<6; i++)
+ {
+ dst_idx += i >> 2;
+ off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
+ s->mb_intra = is_intra[i];
+ if (is_intra[i]) {
+ /* check if prediction blocks A and C are available */
+ v->a_avail = v->c_avail = 0;
+ if(i == 2 || i == 3 || !s->first_slice_line)
+ v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];
+ if(i == 1 || i == 3 || s->mb_x)
+ v->c_avail = v->mb_type[0][s->block_index[i] - 1];
+
+ vc1_decode_intra_block(v, s->block[i], i, is_coded[i], mquant, (i&4)?v->codingset2:v->codingset);
+ if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
+ s->dsp.vc1_inv_trans_8x8(s->block[i]);
+ if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
+ for(j = 0; j < 64; j++) s->block[i][j] += 128;
+ s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
+ if(v->pq >= 9 && v->overlap) {
+ if(v->a_avail)
+ s->dsp.vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), (i<4) ? ((i&1)>>1) : (s->mb_y&1));
+ if(v->c_avail)
+ s->dsp.vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2), (i<4) ? (i&1) : (s->mb_x&1));
}
+ } else if(is_coded[i]) {
+ status = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block);
+ if(!v->ttmbf && ttmb < 8) ttmb = -1;
+ first_block = 0;
+ if((i<4) || !(s->flags & CODEC_FLAG_GRAY))
+ s->dsp.add_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
}
}
return status;
}
else //Skipped MB
{
- /* XXX: Skipped => cbp=0 and mquant doesn't matter ? */
+ s->mb_intra = 0;
+ s->current_picture.qscale_table[mb_pos] = 0;
+ for (i=0; i<6; i++) {
+ v->mb_type[0][s->block_index[i]] = 0;
+ s->dc_val[0][s->block_index[i]] = 0;
+ }
for (i=0; i<4; i++)
{
- if (v->mv_mode == MV_PMODE_MIXED_MV /* Hybrid pred */)
- hybrid_pred = get_bits(gb, 1);
+ vc1_pred_mv(s, i, 0, 0, 0, v->range_x, v->range_y, v->mb_type[0]);
+ vc1_mc_4mv_luma(v, i);
}
- /* TODO: blah */
+ vc1_mc_4mv_chroma(v);
+ s->current_picture.qscale_table[mb_pos] = 0;
return 0;
}
}
return -1;
}
+/** Decode one B-frame MB (in Main profile)
+ */
+static void vc1_decode_b_mb(VC1Context *v)
+{
+ MpegEncContext *s = &v->s;
+ GetBitContext *gb = &s->gb;
+ int i, j;
+ int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
+ int cbp = 0; /* cbp decoding stuff */
+ int mqdiff, mquant; /* MB quantization */
+ int ttmb = v->ttfrm; /* MB Transform type */
+
+ static const int size_table[6] = { 0, 2, 3, 4, 5, 8 },
+ offset_table[6] = { 0, 1, 3, 7, 15, 31 };
+ int mb_has_coeffs = 0; /* last_flag */
+ int index, index1; /* LUT indices */
+ int val, sign; /* temp values */
+ int first_block = 1;
+ int dst_idx, off;
+ int skipped, direct;
+ int dmv_x[2], dmv_y[2];
+ int bmvtype = BMV_TYPE_BACKWARD;
+
+ mquant = v->pq; /* Loosy initialization */
+ s->mb_intra = 0;
+
+ if (v->dmb_is_raw)
+ direct = get_bits1(gb);
+ else
+ direct = v->direct_mb_plane[mb_pos];
+ if (v->skip_is_raw)
+ skipped = get_bits1(gb);
+ else
+ skipped = v->s.mbskip_table[mb_pos];
+
+ s->dsp.clear_blocks(s->block[0]);
+ dmv_x[0] = dmv_x[1] = dmv_y[0] = dmv_y[1] = 0;
+ for(i = 0; i < 6; i++) {
+ v->mb_type[0][s->block_index[i]] = 0;
+ s->dc_val[0][s->block_index[i]] = 0;
+ }
+ s->current_picture.qscale_table[mb_pos] = 0;
+
+ if (!direct) {
+ if (!skipped) {
+ GET_MVDATA(dmv_x[0], dmv_y[0]);
+ dmv_x[1] = dmv_x[0];
+ dmv_y[1] = dmv_y[0];
+ }
+ if(skipped || !s->mb_intra) {
+ bmvtype = decode012(gb);
+ switch(bmvtype) {
+ case 0:
+ bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_BACKWARD : BMV_TYPE_FORWARD;
+ break;
+ case 1:
+ bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_FORWARD : BMV_TYPE_BACKWARD;
+ break;
+ case 2:
+ bmvtype = BMV_TYPE_INTERPOLATED;
+ dmv_x[0] = dmv_y[0] = 0;
+ }
+ }
+ }
+ for(i = 0; i < 6; i++)
+ v->mb_type[0][s->block_index[i]] = s->mb_intra;
+
+ if (skipped) {
+ if(direct) bmvtype = BMV_TYPE_INTERPOLATED;
+ vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
+ vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
+ return;
+ }
+ if (direct) {
+ cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
+ GET_MQUANT();
+ s->mb_intra = 0;
+ mb_has_coeffs = 0;
+ s->current_picture.qscale_table[mb_pos] = mquant;
+ if(!v->ttmbf)
+ ttmb = get_vlc2(gb, vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
+ dmv_x[0] = dmv_y[0] = dmv_x[1] = dmv_y[1] = 0;
+ vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
+ vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
+ } else {
+ if(!mb_has_coeffs && !s->mb_intra) {
+ /* no coded blocks - effectively skipped */
+ vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
+ vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
+ return;
+ }
+ if(s->mb_intra && !mb_has_coeffs) {
+ GET_MQUANT();
+ s->current_picture.qscale_table[mb_pos] = mquant;
+ s->ac_pred = get_bits1(gb);
+ cbp = 0;
+ vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
+ } else {
+ if(bmvtype == BMV_TYPE_INTERPOLATED) {
+ GET_MVDATA(dmv_x[0], dmv_y[0]);
+ if(!mb_has_coeffs) {
+ /* interpolated skipped block */
+ vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
+ vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
+ return;
+ }
+ }
+ vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
+ if(!s->mb_intra) {
+ vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
+ }
+ if(s->mb_intra)
+ s->ac_pred = get_bits1(gb);
+ cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
+ GET_MQUANT();
+ s->current_picture.qscale_table[mb_pos] = mquant;
+ if(!v->ttmbf && !s->mb_intra && mb_has_coeffs)
+ ttmb = get_vlc2(gb, vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
+ }
+ }
+ dst_idx = 0;
+ for (i=0; i<6; i++)
+ {
+ s->dc_val[0][s->block_index[i]] = 0;
+ dst_idx += i >> 2;
+ val = ((cbp >> (5 - i)) & 1);
+ off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
+ v->mb_type[0][s->block_index[i]] = s->mb_intra;
+ if(s->mb_intra) {
+ /* check if prediction blocks A and C are available */
+ v->a_avail = v->c_avail = 0;
+ if(i == 2 || i == 3 || !s->first_slice_line)
+ v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];
+ if(i == 1 || i == 3 || s->mb_x)
+ v->c_avail = v->mb_type[0][s->block_index[i] - 1];
+
+ vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
+ if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
+ s->dsp.vc1_inv_trans_8x8(s->block[i]);
+ if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
+ for(j = 0; j < 64; j++) s->block[i][j] += 128;
+ s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
+ } else if(val) {
+ vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block);
+ if(!v->ttmbf && ttmb < 8) ttmb = -1;
+ first_block = 0;
+ if((i<4) || !(s->flags & CODEC_FLAG_GRAY))
+ s->dsp.add_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
+ }
+ }
+}
+
/** Decode blocks of I-frame
*/
static void vc1_decode_i_blocks(VC1Context *v)
{
- int k;
+ int k, j;
MpegEncContext *s = &v->s;
int cbp, val;
uint8_t *coded_val;
//do frame decode
s->mb_x = s->mb_y = 0;
s->mb_intra = 1;
+ s->first_slice_line = 1;
ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) {
mb_pos = s->mb_x + s->mb_y * s->mb_width;
s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA;
s->current_picture.qscale_table[mb_pos] = v->pq;
+ s->current_picture.motion_val[1][s->block_index[0]][0] = 0;
+ s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
// do actual MB decoding and displaying
cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
vc1_decode_i_block(v, s->block[k], k, val, (k<4)? v->codingset : v->codingset2);
- vc1_inv_trans(s->block[k], 8, 8);
+ s->dsp.vc1_inv_trans_8x8(s->block[k]);
if(v->pq >= 9 && v->overlap) {
- vc1_overlap_block(s, s->block[k], k, (s->mb_y || k>1), (s->mb_x || (k != 0 && k != 2)));
+ for(j = 0; j < 64; j++) s->block[k][j] += 128;
+ }
+ }
+
+ vc1_put_block(v, s->block);
+ if(v->pq >= 9 && v->overlap) {
+ if(!s->first_slice_line) {
+ s->dsp.vc1_v_overlap(s->dest[0], s->linesize, 0);
+ s->dsp.vc1_v_overlap(s->dest[0] + 8, s->linesize, 0);
+ if(!(s->flags & CODEC_FLAG_GRAY)) {
+ s->dsp.vc1_v_overlap(s->dest[1], s->uvlinesize, s->mb_y&1);
+ s->dsp.vc1_v_overlap(s->dest[2], s->uvlinesize, s->mb_y&1);
+ }
+ }
+ s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize, 1);
+ s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize, 1);
+ if(s->mb_x) {
+ s->dsp.vc1_h_overlap(s->dest[0], s->linesize, 0);
+ s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize, 0);
+ if(!(s->flags & CODEC_FLAG_GRAY)) {
+ s->dsp.vc1_h_overlap(s->dest[1], s->uvlinesize, s->mb_x&1);
+ s->dsp.vc1_h_overlap(s->dest[2], s->uvlinesize, s->mb_x&1);
+ }
+ }
+ s->dsp.vc1_h_overlap(s->dest[0] + 8, s->linesize, 1);
+ s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize, 1);
+ }
+
+ if(get_bits_count(&s->gb) > v->bits) {
+ av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i\n", get_bits_count(&s->gb), v->bits);
+ return;
+ }
+ }
+ ff_draw_horiz_band(s, s->mb_y * 16, 16);
+ s->first_slice_line = 0;
+ }
+}
+
+/** Decode blocks of I-frame for advanced profile
+ */
+static void vc1_decode_i_blocks_adv(VC1Context *v)
+{
+ int k, j;
+ MpegEncContext *s = &v->s;
+ int cbp, val;
+ uint8_t *coded_val;
+ int mb_pos;
+ int mquant = v->pq;
+ int mqdiff;
+ int overlap;
+ GetBitContext *gb = &s->gb;
+
+ /* select codingmode used for VLC tables selection */
+ switch(v->y_ac_table_index){
+ case 0:
+ v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
+ break;
+ case 1:
+ v->codingset = CS_HIGH_MOT_INTRA;
+ break;
+ case 2:
+ v->codingset = CS_MID_RATE_INTRA;
+ break;
+ }
+
+ switch(v->c_ac_table_index){
+ case 0:
+ v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
+ break;
+ case 1:
+ v->codingset2 = CS_HIGH_MOT_INTER;
+ break;
+ case 2:
+ v->codingset2 = CS_MID_RATE_INTER;
+ break;
+ }
+
+ /* Set DC scale - y and c use the same */
+ s->y_dc_scale = s->y_dc_scale_table[v->pq];
+ s->c_dc_scale = s->c_dc_scale_table[v->pq];
+
+ //do frame decode
+ s->mb_x = s->mb_y = 0;
+ s->mb_intra = 1;
+ s->first_slice_line = 1;
+ ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
+ for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
+ for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) {
+ ff_init_block_index(s);
+ ff_update_block_index(s);
+ s->dsp.clear_blocks(s->block[0]);
+ mb_pos = s->mb_x + s->mb_y * s->mb_stride;
+ s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA;
+ s->current_picture.motion_val[1][s->block_index[0]][0] = 0;
+ s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
+
+ // do actual MB decoding and displaying
+ cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
+ if(v->acpred_is_raw)
+ v->s.ac_pred = get_bits(&v->s.gb, 1);
+ else
+ v->s.ac_pred = v->acpred_plane[mb_pos];
+
+ if(v->condover == CONDOVER_SELECT) {
+ if(v->overflg_is_raw)
+ overlap = get_bits(&v->s.gb, 1);
+ else
+ overlap = v->over_flags_plane[mb_pos];
+ } else
+ overlap = (v->condover == CONDOVER_ALL);
+
+ GET_MQUANT();
+
+ s->current_picture.qscale_table[mb_pos] = mquant;
+
+ for(k = 0; k < 6; k++) {
+ val = ((cbp >> (5 - k)) & 1);
+
+ if (k < 4) {
+ int pred = vc1_coded_block_pred(&v->s, k, &coded_val);
+ val = val ^ pred;
+ *coded_val = val;
}
+ cbp |= val << (5 - k);
+
+ v->a_avail = !s->first_slice_line || (k==2 || k==3);
+ v->c_avail = !!s->mb_x || (k==1 || k==3);
+
+ vc1_decode_i_block_adv(v, s->block[k], k, val, (k<4)? v->codingset : v->codingset2, mquant);
+
+ s->dsp.vc1_inv_trans_8x8(s->block[k]);
+ for(j = 0; j < 64; j++) s->block[k][j] += 128;
}
vc1_put_block(v, s->block);
- if(v->pq >= 9 && v->overlap) { /* XXX: do proper overlapping insted of loop filter */
- if(s->mb_y) {
- s->dsp.h263_v_loop_filter(s->dest[0], s->linesize, s->y_dc_scale);
- s->dsp.h263_v_loop_filter(s->dest[0] + 8, s->linesize, s->y_dc_scale);
- s->dsp.h263_v_loop_filter(s->dest[1], s->uvlinesize, s->y_dc_scale);
- s->dsp.h263_v_loop_filter(s->dest[2], s->uvlinesize, s->y_dc_scale);
+ if(overlap) {
+ if(!s->first_slice_line) {
+ s->dsp.vc1_v_overlap(s->dest[0], s->linesize, 0);
+ s->dsp.vc1_v_overlap(s->dest[0] + 8, s->linesize, 0);
+ if(!(s->flags & CODEC_FLAG_GRAY)) {
+ s->dsp.vc1_v_overlap(s->dest[1], s->uvlinesize, s->mb_y&1);
+ s->dsp.vc1_v_overlap(s->dest[2], s->uvlinesize, s->mb_y&1);
+ }
}
- s->dsp.h263_v_loop_filter(s->dest[0] + 8 * s->linesize, s->linesize, s->y_dc_scale);
- s->dsp.h263_v_loop_filter(s->dest[0] + 8 * s->linesize + 8, s->linesize, s->y_dc_scale);
+ s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize, 1);
+ s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize, 1);
if(s->mb_x) {
- s->dsp.h263_h_loop_filter(s->dest[0], s->linesize, s->y_dc_scale);
- s->dsp.h263_h_loop_filter(s->dest[0] + 8 * s->linesize, s->linesize, s->y_dc_scale);
- s->dsp.h263_h_loop_filter(s->dest[1], s->uvlinesize, s->y_dc_scale);
- s->dsp.h263_h_loop_filter(s->dest[2], s->uvlinesize, s->y_dc_scale);
+ s->dsp.vc1_h_overlap(s->dest[0], s->linesize, 0);
+ s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize, 0);
+ if(!(s->flags & CODEC_FLAG_GRAY)) {
+ s->dsp.vc1_h_overlap(s->dest[1], s->uvlinesize, s->mb_x&1);
+ s->dsp.vc1_h_overlap(s->dest[2], s->uvlinesize, s->mb_x&1);
+ }
}
- s->dsp.h263_h_loop_filter(s->dest[0] + 8, s->linesize, s->y_dc_scale);
- s->dsp.h263_h_loop_filter(s->dest[0] + 8 * s->linesize + 8, s->linesize, s->y_dc_scale);
+ s->dsp.vc1_h_overlap(s->dest[0] + 8, s->linesize, 1);
+ s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize, 1);
}
if(get_bits_count(&s->gb) > v->bits) {
}
}
ff_draw_horiz_band(s, s->mb_y * 16, 16);
+ s->first_slice_line = 0;
}
}
ff_update_block_index(s);
s->dsp.clear_blocks(s->block[0]);
- vc1_decode_p_mb(v, s->block);
+ vc1_decode_p_mb(v);
+ if(get_bits_count(&s->gb) > v->bits || get_bits_count(&s->gb) < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i at %ix%i\n", get_bits_count(&s->gb), v->bits,s->mb_x,s->mb_y);
+ return;
+ }
+ }
+ ff_draw_horiz_band(s, s->mb_y * 16, 16);
+ s->first_slice_line = 0;
+ }
+}
+
+static void vc1_decode_b_blocks(VC1Context *v)
+{
+ MpegEncContext *s = &v->s;
+
+ /* select codingmode used for VLC tables selection */
+ switch(v->c_ac_table_index){
+ case 0:
+ v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
+ break;
+ case 1:
+ v->codingset = CS_HIGH_MOT_INTRA;
+ break;
+ case 2:
+ v->codingset = CS_MID_RATE_INTRA;
+ break;
+ }
+
+ switch(v->c_ac_table_index){
+ case 0:
+ v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
+ break;
+ case 1:
+ v->codingset2 = CS_HIGH_MOT_INTER;
+ break;
+ case 2:
+ v->codingset2 = CS_MID_RATE_INTER;
+ break;
+ }
+
+ ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
+ s->first_slice_line = 1;
+ for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
+ for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) {
+ ff_init_block_index(s);
+ ff_update_block_index(s);
+ s->dsp.clear_blocks(s->block[0]);
+
+ vc1_decode_b_mb(v);
if(get_bits_count(&s->gb) > v->bits || get_bits_count(&s->gb) < 0) {
av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i at %ix%i\n", get_bits_count(&s->gb), v->bits,s->mb_x,s->mb_y);
return;
}
}
+static void vc1_decode_skip_blocks(VC1Context *v)
+{
+ MpegEncContext *s = &v->s;
+
+ ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
+ s->first_slice_line = 1;
+ for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
+ s->mb_x = 0;
+ ff_init_block_index(s);
+ ff_update_block_index(s);
+ memcpy(s->dest[0], s->last_picture.data[0] + s->mb_y * 16 * s->linesize, s->linesize * 16);
+ memcpy(s->dest[1], s->last_picture.data[1] + s->mb_y * 8 * s->uvlinesize, s->uvlinesize * 8);
+ memcpy(s->dest[2], s->last_picture.data[2] + s->mb_y * 8 * s->uvlinesize, s->uvlinesize * 8);
+ ff_draw_horiz_band(s, s->mb_y * 16, 16);
+ s->first_slice_line = 0;
+ }
+ s->pict_type = P_TYPE;
+}
+
static void vc1_decode_blocks(VC1Context *v)
{
switch(v->s.pict_type) {
case I_TYPE:
- vc1_decode_i_blocks(v);
+ if(v->profile == PROFILE_ADVANCED)
+ vc1_decode_i_blocks_adv(v);
+ else
+ vc1_decode_i_blocks(v);
break;
case P_TYPE:
- vc1_decode_p_blocks(v);
+ if(v->p_frame_skipped)
+ vc1_decode_skip_blocks(v);
+ else
+ vc1_decode_p_blocks(v);
+ break;
+ case B_TYPE:
+ if(v->bi_type)
+ vc1_decode_i_blocks(v);
+ else
+ vc1_decode_b_blocks(v);
break;
}
}
GetBitContext gb;
if (!avctx->extradata_size || !avctx->extradata) return -1;
- avctx->pix_fmt = PIX_FMT_YUV420P;
+ if (!(avctx->flags & CODEC_FLAG_GRAY))
+ avctx->pix_fmt = PIX_FMT_YUV420P;
+ else
+ avctx->pix_fmt = PIX_FMT_GRAY8;
v->s.avctx = avctx;
avctx->flags |= CODEC_FLAG_EMU_EDGE;
v->s.flags |= CODEC_FLAG_EMU_EDGE;
return -1;
if (vc1_init_common(v) < 0) return -1;
- av_log(avctx, AV_LOG_INFO, "This decoder is not supposed to produce picture. Dont report this as a bug!\n");
- av_log(avctx, AV_LOG_INFO, "If you see a picture, don't believe your eyes.\n");
-
avctx->coded_width = avctx->width;
avctx->coded_height = avctx->height;
if (avctx->codec_id == CODEC_ID_WMV3)
{
av_log(avctx, AV_LOG_INFO, "Read %i bits in overflow\n", -count);
}
+ } else { // VC1/WVC1
+ int edata_size = avctx->extradata_size;
+ uint8_t *edata = avctx->extradata;
+
+ if(avctx->extradata_size < 16) {
+ av_log(avctx, AV_LOG_ERROR, "Extradata size too small: %i\n", edata_size);
+ return -1;
+ }
+ while(edata_size > 8) {
+ // test if we've found header
+ if(BE_32(edata) == 0x0000010F) {
+ edata += 4;
+ edata_size -= 4;
+ break;
+ }
+ edata_size--;
+ edata++;
+ }
+
+ init_get_bits(&gb, edata, edata_size*8);
+
+ if (decode_sequence_header(avctx, &gb) < 0)
+ return -1;
+
+ while(edata_size > 8) {
+ // test if we've found entry point
+ if(BE_32(edata) == 0x0000010E) {
+ edata += 4;
+ edata_size -= 4;
+ break;
+ }
+ edata_size--;
+ edata++;
+ }
+
+ init_get_bits(&gb, edata, edata_size*8);
+
+ if (decode_entry_point(avctx, &gb) < 0)
+ return -1;
}
avctx->has_b_frames= !!(avctx->max_b_frames);
+ s->low_delay = !avctx->has_b_frames;
s->mb_width = (avctx->coded_width+15)>>4;
s->mb_height = (avctx->coded_height+15)>>4;
/* Allocate mb bitplanes */
v->mv_type_mb_plane = av_malloc(s->mb_stride * s->mb_height);
- v->skip_mb_plane = av_malloc(s->mb_stride * s->mb_height);
+ v->direct_mb_plane = av_malloc(s->mb_stride * s->mb_height);
+ v->acpred_plane = av_malloc(s->mb_stride * s->mb_height);
+ v->over_flags_plane = av_malloc(s->mb_stride * s->mb_height);
- /* For predictors */
- v->previous_line_cbpcy = (uint8_t *)av_malloc(s->mb_stride*4);
- if (!v->previous_line_cbpcy) return -1;
+ /* allocate block type info in that way so it could be used with s->block_index[] */
+ v->mb_type_base = av_malloc(s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2);
+ v->mb_type[0] = v->mb_type_base + s->b8_stride + 1;
+ v->mb_type[1] = v->mb_type_base + s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride + 1;
+ v->mb_type[2] = v->mb_type[1] + s->mb_stride * (s->mb_height + 1);
/* Init coded blocks info */
if (v->profile == PROFILE_ADVANCED)
/** Decode a VC1/WMV3 frame
* @todo TODO: Handle VC-1 IDUs (Transport level?)
- * @warning Initial try at using MpegEncContext stuff
*/
static int vc1_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
VC1Context *v = avctx->priv_data;
MpegEncContext *s = &v->s;
AVFrame *pict = data;
+ uint8_t *buf2 = NULL;
/* no supplementary picture */
if (buf_size == 0) {
s->current_picture_ptr= &s->picture[i];
}
- avctx->has_b_frames= !s->low_delay;
-
- init_get_bits(&s->gb, buf, buf_size*8);
+ //for advanced profile we need to unescape buffer
+ if (avctx->codec_id == CODEC_ID_VC1) {
+ int i, buf_size2;
+ buf2 = av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+ buf_size2 = 0;
+ for(i = 0; i < buf_size; i++) {
+ if(buf[i] == 3 && i >= 2 && !buf[i-1] && !buf[i-2] && i < buf_size-1 && buf[i+1] < 4) {
+ buf2[buf_size2++] = buf[i+1];
+ i++;
+ } else
+ buf2[buf_size2++] = buf[i];
+ }
+ init_get_bits(&s->gb, buf2, buf_size2*8);
+ } else
+ init_get_bits(&s->gb, buf, buf_size*8);
// do parse frame header
- if(vc1_parse_frame_header(v, &s->gb) == -1)
- return -1;
+ if(v->profile < PROFILE_ADVANCED) {
+ if(vc1_parse_frame_header(v, &s->gb) == -1) {
+ av_free(buf2);
+ return -1;
+ }
+ } else {
+ if(vc1_parse_frame_header_adv(v, &s->gb) == -1) {
+ av_free(buf2);
+ return -1;
+ }
+ }
- if(s->pict_type != I_TYPE && s->pict_type != P_TYPE)return -1;
+ if(s->pict_type != I_TYPE && !v->res_rtm_flag){
+ av_free(buf2);
+ return -1;
+ }
// for hurry_up==5
s->current_picture.pict_type= s->pict_type;
s->current_picture.key_frame= s->pict_type == I_TYPE;
/* skip B-frames if we don't have reference frames */
- if(s->last_picture_ptr==NULL && (s->pict_type==B_TYPE || s->dropable)) return -1;//buf_size;
+ if(s->last_picture_ptr==NULL && (s->pict_type==B_TYPE || s->dropable)){
+ av_free(buf2);
+ return -1;//buf_size;
+ }
/* skip b frames if we are in a hurry */
if(avctx->hurry_up && s->pict_type==B_TYPE) return -1;//buf_size;
if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==B_TYPE)
|| (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=I_TYPE)
- || avctx->skip_frame >= AVDISCARD_ALL)
+ || avctx->skip_frame >= AVDISCARD_ALL) {
+ av_free(buf2);
return buf_size;
+ }
/* skip everything if we are in a hurry>=5 */
- if(avctx->hurry_up>=5) return -1;//buf_size;
+ if(avctx->hurry_up>=5) {
+ av_free(buf2);
+ return -1;//buf_size;
+ }
if(s->next_p_frame_damaged){
if(s->pict_type==B_TYPE)
s->next_p_frame_damaged=0;
}
- if(MPV_frame_start(s, avctx) < 0)
+ if(MPV_frame_start(s, avctx) < 0) {
+ av_free(buf2);
return -1;
+ }
ff_er_frame_start(s);
/* we substract 1 because it is added on utils.c */
avctx->frame_number = s->picture_number - 1;
+ av_free(buf2);
return buf_size;
}
av_freep(&v->hrd_buffer);
MPV_common_end(&v->s);
av_freep(&v->mv_type_mb_plane);
- av_freep(&v->skip_mb_plane);
+ av_freep(&v->direct_mb_plane);
+ av_freep(&v->acpred_plane);
+ av_freep(&v->over_flags_plane);
+ av_freep(&v->mb_type_base);
return 0;
}
projects / ffmpeg / blobdiff