/*
* VC-1 and WMV3 decoder
- * Copyright (c) 2006 Konstantin Shishkov
+ * Copyright (c) 2006-2007 Konstantin Shishkov
* Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#define AC_VLC_BITS 9
static const uint16_t table_mb_intra[64][2];
+/** Markers used if VC-1 AP frame data */
+//@{
+enum VC1Code{
+ VC1_CODE_RES0 = 0x00000100,
+ VC1_CODE_ENDOFSEQ = 0x0000010A,
+ VC1_CODE_SLICE,
+ VC1_CODE_FIELD,
+ VC1_CODE_FRAME,
+ VC1_CODE_ENTRYPOINT,
+ VC1_CODE_SEQHDR,
+};
+//@}
/** Available Profiles */
//@{
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 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)
{
}
/** Put block onto picture
- * @todo move to DSPContext
*/
static void vc1_put_block(VC1Context *v, DCTELEM block[6][64])
{
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;
+ if(v->fastuvmc) {
+ uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
+ uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
+ }
if(!dir) {
srcY = s->last_picture.data[0];
srcU = s->last_picture.data[1];
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);
+ if(v->profile != PROFILE_ADVANCED){
+ src_x = av_clip( src_x, -16, s->mb_width * 16);
+ src_y = av_clip( src_y, -16, s->mb_height * 16);
+ uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
+ uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
+ }else{
+ src_x = av_clip( src_x, -17, s->avctx->coded_width);
+ src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
+ uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
+ uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
+ }
srcY += src_y * s->linesize + src_x;
srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
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));
- }
-
if(s->mspel) {
dxy = ((my & 3) << 2) | (mx & 3);
dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] , srcY , 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 if(!s->quarter_sample) { // hpel mc
- mx >>= 1;
- my >>= 1;
- dxy = ((my & 1) << 1) | (mx & 1);
+ } 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);
- } else {
- dxy = ((my & 3) << 2) | (mx & 3);
-
- if(!v->rnd)
- dsp->put_qpel_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize);
- else
- dsp->put_no_rnd_qpel_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize);
}
if(s->flags & CODEC_FLAG_GRAY) return;
- /* Chroma MC always uses qpel blilinear */
+ /* 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_qpel_pixels_tab[1][uvdxy](s->dest[1], srcU, s->uvlinesize);
- dsp->put_qpel_pixels_tab[1][uvdxy](s->dest[2], srcV, s->uvlinesize);
+ 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_qpel_pixels_tab[1][uvdxy](s->dest[1], srcU, s->uvlinesize);
- dsp->put_no_rnd_qpel_pixels_tab[1][uvdxy](s->dest[2], srcV, s->uvlinesize);
+ 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);
}
}
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);
+ if(v->profile != PROFILE_ADVANCED){
+ src_x = av_clip( src_x, -16, s->mb_width * 16);
+ src_y = av_clip( src_y, -16, s->mb_height * 16);
+ }else{
+ src_x = av_clip( src_x, -17, s->avctx->coded_width);
+ src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
+ }
srcY += src_y * s->linesize + src_x;
if(s->mspel) {
dxy = ((my & 3) << 2) | (mx & 3);
dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize, v->rnd);
- } else if(!s->quarter_sample) { // hpel mc
- mx >>= 1;
- my >>= 1;
- dxy = ((my & 1) << 1) | (mx & 1);
-
+ } 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);
- } else {
- dxy = ((my & 3) << 2) | (mx & 3);
-
- if(!v->rnd)
- dsp->put_qpel_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize);
- else
- dsp->put_no_rnd_qpel_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize);
}
}
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
+ } else {
+ s->current_picture.motion_val[1][s->block_index[0]][0] = 0;
+ s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
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;
+ if(v->fastuvmc) {
+ uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
+ uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&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);
+ if(v->profile != PROFILE_ADVANCED){
+ uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
+ uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
+ }else{
+ uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
+ uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
+ }
+
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)
}
}
- if(v->fastuvmc) {
- uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
- uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
- }
-
- /* Chroma MC always uses qpel blilinear */
+ /* 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_qpel_pixels_tab[1][uvdxy](s->dest[1], srcU, s->uvlinesize);
- dsp->put_qpel_pixels_tab[1][uvdxy](s->dest[2], srcV, s->uvlinesize);
+ 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_qpel_pixels_tab[1][uvdxy](s->dest[1], srcU, s->uvlinesize);
- dsp->put_no_rnd_qpel_pixels_tab[1][uvdxy](s->dest[2], srcV, s->uvlinesize);
+ 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);
}
}
+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_COMPLEX)
{
- av_log(avctx, AV_LOG_ERROR, "Profile value 2 is forbidden (and WMV3 Complex Profile is unsupported)\n");
- return -1;
+ av_log(avctx, AV_LOG_ERROR, "WMV3 Complex Profile is not fully supported\n");
}
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");
- 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,
+ av_log(avctx, AV_LOG_ERROR,
+ "Old WMV3 version detected, only I-frames will be decoded\n");
+ //return -1;
+ }
+ //TODO: figure out what they mean (always 0x402F)
+ if(!v->res_fasttx) skip_bits(gb, 16);
+ av_log(avctx, AV_LOG_DEBUG,
"Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
"LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
"Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
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->s.avctx->width = v->s.avctx->coded_width;
+ v->s.avctx->height = v->s.avctx->coded_height;
+ 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->s.h_edge_pos = v->s.avctx->coded_width;
+ v->s.v_edge_pos = v->s.avctx->coded_height;
+
+ av_log(v->s.avctx, AV_LOG_DEBUG,
+ "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
+ "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
+ "TFCTRflag=%i, FINTERPflag=%i\n",
+ v->level, v->frmrtq_postproc, v->bitrtq_postproc,
+ v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,
+ v->tfcntrflag, v->finterpflag
+ );
+
+ 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;
+ }
+ v->s.max_b_frames = v->s.avctx->max_b_frames = 7;
+ if(get_bits1(gb)) { //Display Info - decoding is not affected by it
+ int w, h, ar = 0;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");
+ v->s.avctx->width = v->s.width = w = get_bits(gb, 14) + 1;
+ v->s.avctx->height = v->s.height = h = get_bits(gb, 14) + 1;
+ av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);
+ if(get_bits1(gb))
+ ar = get_bits(gb, 4);
+ if(ar && ar < 14){
+ v->s.avctx->sample_aspect_ratio = vc1_pixel_aspect[ar];
+ }else if(ar == 15){
+ w = get_bits(gb, 8);
+ h = get_bits(gb, 8);
+ v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
+ }
+
+ if(get_bits1(gb)){ //framerate stuff
+ if(get_bits1(gb)) {
+ v->s.avctx->time_base.num = 32;
+ v->s.avctx->time_base.den = get_bits(gb, 16) + 1;
+ } else {
+ int nr, dr;
+ nr = get_bits(gb, 8);
+ dr = get_bits(gb, 4);
+ if(nr && nr < 8 && dr && dr < 3){
+ v->s.avctx->time_base.num = fps_dr[dr - 1];
+ v->s.avctx->time_base.den = fps_nr[nr - 1] * 1000;
+ }
+ }
+ }
+
+ 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, blink, clentry, refdist;
+
+ av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
+ blink = get_bits1(gb); // broken link
+ clentry = get_bits1(gb); // closed entry
+ v->panscanflag = get_bits1(gb);
+ refdist = 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
+ }
+
+ av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"
+ "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"
+ "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"
+ "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
+ blink, clentry, v->panscanflag, refdist, v->s.loop_filter,
+ v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
+
+ 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)
- get_bits(gb, 7); // skip buffer fullness
+ 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 == -1) {
+ 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)
+ 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;
else
if (v->multires && v->s.pict_type != B_TYPE) v->respic = get_bits(gb, 2);
+ if(v->res_x8 && (v->s.pict_type == I_TYPE || v->s.pict_type == BI_TYPE)){
+ if(get_bits1(gb))return -1;
+ }
//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;
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 = 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);
+ v->luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6);
+ v->lutuv[i] = av_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)
/* 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
- * @{
- */
-
-/**
- * @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->altpq : v->pq; \
- } \
- else \
- { \
- mqdiff = get_bits(gb, 3); \
- if (mqdiff != 7) mquant = v->pq + mqdiff; \
- else mquant = get_bits(gb, 5); \
- } \
- } \
- 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; \
- }
-
-/**
- * @def GET_MVDATA(_dmv_x, _dmv_y)
- * @brief Get MV differentials
- * @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,\
- VC1_MV_DIFF_VLC_BITS, 2); \
- if (index > 36) \
- { \
- mb_has_coeffs = 1; \
- index -= 37; \
- } \
- else mb_has_coeffs = 0; \
- s->mb_intra = 0; \
- if (!index) { _dmv_x = _dmv_y = 0; } \
- else if (index == 35) \
- { \
- _dmv_x = get_bits(gb, v->k_x - 1 + s->quarter_sample); \
- _dmv_y = get_bits(gb, v->k_y - 1 + s->quarter_sample); \
- } \
- else if (index == 36) \
- { \
- _dmv_x = 0; \
- _dmv_y = 0; \
- s->mb_intra = 1; \
- } \
- else \
- { \
- index1 = index%6; \
- if (!s->quarter_sample && index1 == 5) val = 1; \
- else val = 0; \
- if(size_table[index1] - val > 0) \
- val = get_bits(gb, size_table[index1] - val); \
- else val = 0; \
- sign = 0 - (val&1); \
- _dmv_x = (sign ^ ((val>>1) + offset_table[index1])) - sign; \
- \
- index1 = index/6; \
- if (!s->quarter_sample && index1 == 5) val = 1; \
- else val = 0; \
- if(size_table[index1] - val > 0) \
- val = get_bits(gb, size_table[index1] - val); \
- else val = 0; \
- sign = 0 - (val&1); \
- _dmv_y = (sign ^ ((val>>1) + offset_table[index1])) - sign; \
- }
-
-/** Predict and set motion vector
- */
-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)
+static int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
{
- int xy, wrap, off = 0;
- int16_t *A, *B, *C;
- int px, py;
- int sum;
-
- /* scale MV difference to be quad-pel */
- dmv_x <<= 1 - s->quarter_sample;
- dmv_y <<= 1 - s->quarter_sample;
+ int pqindex, lowquant;
+ int status;
- wrap = s->b8_stride;
- xy = s->block_index[n];
+ v->p_frame_skipped = 0;
- 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;
+ if(v->interlace){
+ v->fcm = decode012(gb);
+ if(v->fcm) return -1; // interlaced frames/fields are not implemented
}
-
- C = s->current_picture.motion_val[0][xy - 1];
- A = s->current_picture.motion_val[0][xy - wrap];
+ switch(get_prefix(gb, 0, 4)) {
+ case 0:
+ v->s.pict_type = P_TYPE;
+ break;
+ case 1:
+ v->s.pict_type = B_TYPE;
+ 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->psf) {
+ v->rptfrm = get_bits(gb, 2);
+ } else {
+ v->tff = get_bits1(gb);
+ v->rptfrm = 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);
+ 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; /* XXX: should not happen here */
+ }
+ }
+ 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);
+
+ if(v->s.pict_type == I_TYPE || v->s.pict_type == P_TYPE) v->use_ic = 0;
+
+ 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] = av_clip_uint8((scale * i + shift + 32) >> 6);
+ v->lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
+ }
+ v->use_ic = 1;
+ }
+ 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;
+ case B_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 = 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;
+ }
+
+ /* 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->s.pict_type == BI_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
+ */
+#define GET_MQUANT() \
+ if (v->dquantfrm) \
+ { \
+ int edges = 0; \
+ if (v->dqprofile == DQPROFILE_ALL_MBS) \
+ { \
+ if (v->dqbilevel) \
+ { \
+ mquant = (get_bits(gb, 1)) ? v->altpq : v->pq; \
+ } \
+ else \
+ { \
+ mqdiff = get_bits(gb, 3); \
+ if (mqdiff != 7) mquant = v->pq + mqdiff; \
+ else mquant = get_bits(gb, 5); \
+ } \
+ } \
+ 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; \
+ }
+
+/**
+ * @def GET_MVDATA(_dmv_x, _dmv_y)
+ * @brief Get MV differentials
+ * @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
+ */
+#define GET_MVDATA(_dmv_x, _dmv_y) \
+ index = 1 + get_vlc2(gb, vc1_mv_diff_vlc[s->mv_table_index].table,\
+ VC1_MV_DIFF_VLC_BITS, 2); \
+ if (index > 36) \
+ { \
+ mb_has_coeffs = 1; \
+ index -= 37; \
+ } \
+ else mb_has_coeffs = 0; \
+ s->mb_intra = 0; \
+ if (!index) { _dmv_x = _dmv_y = 0; } \
+ else if (index == 35) \
+ { \
+ _dmv_x = get_bits(gb, v->k_x - 1 + s->quarter_sample); \
+ _dmv_y = get_bits(gb, v->k_y - 1 + s->quarter_sample); \
+ } \
+ else if (index == 36) \
+ { \
+ _dmv_x = 0; \
+ _dmv_y = 0; \
+ s->mb_intra = 1; \
+ } \
+ else \
+ { \
+ index1 = index%6; \
+ if (!s->quarter_sample && index1 == 5) val = 1; \
+ else val = 0; \
+ if(size_table[index1] - val > 0) \
+ val = get_bits(gb, size_table[index1] - val); \
+ else val = 0; \
+ sign = 0 - (val&1); \
+ _dmv_x = (sign ^ ((val>>1) + offset_table[index1])) - sign; \
+ \
+ index1 = index/6; \
+ if (!s->quarter_sample && index1 == 5) val = 1; \
+ else val = 0; \
+ if(size_table[index1] - val > 0) \
+ val = get_bits(gb, size_table[index1] - val); \
+ else val = 0; \
+ sign = 0 - (val&1); \
+ _dmv_y = (sign ^ ((val>>1) + offset_table[index1])) - sign; \
+ }
+
+/** Predict and set motion vector
+ */
+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 = 0;
+ int16_t *A, *B, *C;
+ int px, py;
+ int sum;
+
+ /* 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[n];
+
+ 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;
+ s->current_picture.motion_val[1][xy][0] = 0;
+ s->current_picture.motion_val[1][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;
+ s->current_picture.motion_val[1][xy + 1][0] = 0;
+ s->current_picture.motion_val[1][xy + 1][1] = 0;
+ s->current_picture.motion_val[1][xy + wrap][0] = 0;
+ s->current_picture.motion_val[1][xy + wrap][1] = 0;
+ s->current_picture.motion_val[1][xy + wrap + 1][0] = 0;
+ s->current_picture.motion_val[1][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 {
/* Calculate hybrid prediction as specified in 8.3.5.3.5 */
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);
+ sum = FFABS(px) + FFABS(py);
else
- sum = ABS(px - A[0]) + ABS(py - A[1]);
+ sum = FFABS(px - A[0]) + FFABS(py - A[1]);
if(sum > 32) {
if(get_bits1(&s->gb)) {
px = A[0];
}
} else {
if(is_intra[xy - 1])
- sum = ABS(px) + ABS(py);
+ sum = FFABS(px) + FFABS(py);
else
- sum = ABS(px - C[0]) + ABS(py - C[1]);
+ sum = FFABS(px - C[0]) + FFABS(py - C[1]);
if(sum > 32) {
if(get_bits1(&s->gb)) {
px = A[0];
my = s->mv[1][0][1];
uvmx = (mx + ((mx & 3) == 3)) >> 1;
uvmy = (my + ((my & 3) == 3)) >> 1;
+ if(v->fastuvmc) {
+ uvmx = uvmx + ((uvmx<0)?-(uvmx&1):(uvmx&1));
+ uvmy = uvmy + ((uvmy<0)?-(uvmy&1):(uvmy&1));
+ }
srcY = s->next_picture.data[0];
srcU = s->next_picture.data[1];
srcV = s->next_picture.data[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);
+ if(v->profile != PROFILE_ADVANCED){
+ src_x = av_clip( src_x, -16, s->mb_width * 16);
+ src_y = av_clip( src_y, -16, s->mb_height * 16);
+ uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
+ uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
+ }else{
+ src_x = av_clip( src_x, -17, s->avctx->coded_width);
+ src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
+ uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
+ uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
+ }
srcY += src_y * s->linesize + src_x;
srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
|| (unsigned)src_y > s->v_edge_pos - (my&3) - 16){
uint8_t *uvbuf= s->edge_emu_buffer + 19 * s->linesize;
- ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 17, 17,
+ 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,
uint8_t *src, *src2;
src = srcY;
- for(j = 0; j < 17; j++) {
- for(i = 0; i < 17; i++) src[i] = ((src[i] - 128) >> 1) + 128;
+ 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;
src[i] = ((src[i] - 128) >> 1) + 128;
src2[i] = ((src2[i] - 128) >> 1) + 128;
}
- 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));
+ src += s->uvlinesize;
+ src2 += s->uvlinesize;
+ }
+ }
+ srcY += s->mspel * (1 + s->linesize);
}
- if(!s->quarter_sample) { // hpel mc
- mx >>= 1;
- my >>= 1;
- dxy = ((my & 1) << 1) | (mx & 1);
-
- dsp->avg_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
- } else {
- dxy = ((my & 3) << 2) | (mx & 3);
+ mx >>= 1;
+ my >>= 1;
+ dxy = ((my & 1) << 1) | (mx & 1);
- dsp->avg_qpel_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize);
- }
+ 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);
- dsp->avg_qpel_pixels_tab[1][uvdxy](s->dest[1], srcU, s->uvlinesize);
- dsp->avg_qpel_pixels_tab[1][uvdxy](s->dest[2], srcV, s->uvlinesize);
+ 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 av_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)
+{
+ 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 mx[4], my[4], mv_x, mv_y;
- int i;
+ 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;
- if(direct) {
- for(i = 0; i < 4; i++) {
- mx[i] = s->last_picture.motion_val[0][s->block_index[i]][0];
- my[i] = s->last_picture.motion_val[0][s->block_index[i]][1];
- }
- mv_x = median4(mx[0], mx[1], mx[2], mx[3]);
- mv_y = median4(my[0], my[1], my[2], my[3]);
- s->mv[0][0][0] = (mv_x * v->bfraction + B_FRACTION_DEN/2) / B_FRACTION_DEN;
- s->mv[0][0][1] = (mv_y * v->bfraction + B_FRACTION_DEN/2) / B_FRACTION_DEN;
- vc1_mc_1mv(v, 0);
+ wrap = s->b8_stride;
+ xy = s->block_index[0];
- for(i = 0; i < 4; i++) {
- mx[i] = s->next_picture.motion_val[0][s->block_index[i]][0];
- my[i] = s->next_picture.motion_val[0][s->block_index[i]][1];
- }
- mv_x = median4(mx[0], mx[1], mx[2], mx[3]);
- mv_y = median4(my[0], my[1], my[2], my[3]);
- s->mv[1][0][0] = (mv_x * (B_FRACTION_DEN - v->bfraction) + B_FRACTION_DEN/2) / B_FRACTION_DEN;
- s->mv[1][0][1] = (mv_y * (B_FRACTION_DEN - v->bfraction) + B_FRACTION_DEN/2) / B_FRACTION_DEN;
- vc1_interp_mc(v);
+ 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;
}
- if(mode == BMV_TYPE_INTERPOLATED) {
- s->mv[0][0][0] = dmv_x[0];
- s->mv[0][0][1] = dmv_y[0];
- vc1_mc_1mv(v, 0);
- s->mv[1][0][0] = dmv_x[1];
- s->mv[1][0][1] = dmv_y[1];
- vc1_interp_mc(v);
+ 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(mode == BMV_TYPE_BACKWARD) {
- for(i = 0; i < 4; i++) {
- mx[i] = s->last_picture.motion_val[0][s->block_index[i]][0];
- my[i] = s->last_picture.motion_val[0][s->block_index[i]][1];
+ 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->mb_x) C[0] = C[1] = 0;
+ 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;
}
- } else {
- for(i = 0; i < 4; i++) {
- mx[i] = s->next_picture.motion_val[0][s->block_index[i]][0];
- my[i] = s->next_picture.motion_val[0][s->block_index[i]][1];
+ /* 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 = FFABS(px) + FFABS(py);
+ else
+ sum = FFABS(px - A[0]) + FFABS(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 = FFABS(px) + FFABS(py);
+ else
+ sum = FFABS(px - C[0]) + FFABS(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->mb_x) C[0] = C[1] = 0;
+ 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 = FFABS(px) + FFABS(py);
+ else
+ sum = FFABS(px - A[0]) + FFABS(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 = FFABS(px) + FFABS(py);
+ else
+ sum = FFABS(px - C[0]) + FFABS(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 */
- /* XXX: not right but how to determine 4-MV intra/inter in another frame? */
- mv_x = median4(mx[0], mx[1], mx[2], mx[3]);
- mv_y = median4(my[0], my[1], my[2], my[3]);
- s->mv[0][0][0] = mv_x;
- s->mv[0][0][1] = mv_y;
-
- vc1_mc_1mv(v, (mode == BMV_TYPE_FORWARD));
+ 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
/**
* @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
* @{
*/
if(block[k]) {
block[k] *= scale;
if(!v->pquantizer)
- block[k] += (block[k] < 0) ? -v->pq : v->pq;
+ block[k] += (block[k] < 0) ? -v->pq : v->pq;
+ }
+
+ 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;
+
+ scale = v->pq * 2 + v->halfpq;
+ memset(ac_val2, 0, 16 * 2);
+ if(dc_pred_dir) {//left
+ ac_val -= 16;
+ if(s->ac_pred)
+ memcpy(ac_val2, ac_val, 8 * 2);
+ } else {//top
+ ac_val -= 16 * s->block_wrap[n];
+ if(s->ac_pred)
+ memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
+ }
+
+ /* apply AC prediction if needed */
+ if(s->ac_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])
+ 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 && block[k])
+ block[k] += (block[k] < 0) ? -v->pq : v->pq;
+ }
+ }
+ i = 63;
+ }
+ }
+ s->block_last_index[n] = i;
+
+ 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 && mb_pos) q2 = s->current_picture.qscale_table[mb_pos - 1];
+ if(!dc_pred_dir && a_avail && mb_pos >= s->mb_stride) q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
+ if(dc_pred_dir && n==1) q2 = q1;
+ if(!dc_pred_dir && n==2) q2 = q1;
+ if(n==3) 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 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
+ q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 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(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(use_pred) i = 63;
+ } else { // no AC coeffs
+ int k;
- scale = v->pq * 2 + v->halfpq;
memset(ac_val2, 0, 16 * 2);
if(dc_pred_dir) {//left
- ac_val -= 16;
- if(s->ac_pred)
+ if(use_pred) {
memcpy(ac_val2, ac_val, 8 * 2);
+ if(q2 && q1!=q2) {
+ q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
+ q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 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)
+ if(use_pred) {
memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
+ if(q2 && q1!=q2) {
+ q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
+ q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 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) {
+ if(use_pred) {
if(dc_pred_dir) { //left
for(k = 1; k < 8; k++) {
- block[k << 3] = ac_val[k] * scale;
+ block[k << 3] = ac_val2[k] * scale;
if(!v->pquantizer && block[k << 3])
- block[k << 3] += (block[k << 3] < 0) ? -v->pq : v->pq;
+ block[k << 3] += (block[k << 3] < 0) ? -mquant : mquant;
}
} else { //top
for(k = 1; k < 8; k++) {
- block[k] = ac_val[k + 8] * scale;
+ block[k] = ac_val2[k + 8] * scale;
if(!v->pquantizer && block[k])
- block[k] += (block[k] < 0) ? -v->pq : v->pq;
+ block[k] += (block[k] < 0) ? -mquant : mquant;
}
}
i = 63;
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(dc_pred_dir && c_avail && mb_pos) q2 = s->current_picture.qscale_table[mb_pos - 1];
+ if(!dc_pred_dir && a_avail && mb_pos >= s->mb_stride) q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
+ if(dc_pred_dir && n==1) q2 = q1;
+ if(!dc_pred_dir && n==2) q2 = q1;
+ if(n==3) q2 = q1;
if(coded) {
int last = 0, skip, value;
if(use_pred) {
/* scale predictors if needed*/
if(q2 && q1!=q2) {
- q1 = q1 * 2 - 1;
- q2 = q2 * 2 - 1;
+ q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
+ q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
if(dc_pred_dir) { //left
for(k = 1; k < 8; k++)
if(use_pred) {
memcpy(ac_val2, ac_val, 8 * 2);
if(q2 && q1!=q2) {
- q1 = q1 * 2 - 1;
- q2 = q2 * 2 - 1;
+ q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
+ q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
for(k = 1; k < 8; k++)
ac_val2[k] = (ac_val2[k] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
}
if(use_pred) {
memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
if(q2 && q1!=q2) {
- q1 = q1 * 2 - 1;
- q2 = q2 * 2 - 1;
+ q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
+ q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
for(k = 1; k < 8; k++)
ac_val2[k + 8] = (ac_val2[k + 8] * q2 * vc1_dqscale[q1 - 1] + 0x20000) >> 18;
}
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;
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;
/** 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)
{
{
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, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0]);
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;
+ if(!v->res_fasttx && v->res_x8) for(j = 0; j < 64; j++) s->block[i][j] += 16;
s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
- /* TODO: proper loop filtering */
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));
+ s->dsp.vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
+ if(v->a_avail)
+ s->dsp.vc1_v_overlap(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);
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;
+ if(!v->res_fasttx && v->res_x8) for(j = 0; j < 64; j++) s->block[i][j] += 16;
s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
- /* TODO: proper loop filtering */
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));
+ s->dsp.vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
+ if(v->a_avail)
+ s->dsp.vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
}
} else if(is_coded[i]) {
status = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block);
int dst_idx, off;
int skipped, direct;
int dmv_x[2], dmv_y[2];
- int bmvtype = BMV_TYPE_BACKWARD; /* XXX: is it so? */
+ int bmvtype = BMV_TYPE_BACKWARD;
mquant = v->pq; /* Loosy initialization */
s->mb_intra = 0;
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;
}
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;
}
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[1], dmv_y[1]);
+ 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;
}
}
- if(!s->mb_intra)
+ 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);
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);
s->dsp.vc1_inv_trans_8x8(s->block[k]);
+ if(!v->res_fasttx && !v->res_x8) for(j = 0; j < 64; j++) s->block[k][j] -= 16;
if(v->pq >= 9 && v->overlap) {
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(v->pq >= 9 && v->overlap) {
+ if(s->mb_x) {
+ s->dsp.vc1_h_overlap(s->dest[0], s->linesize);
+ s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
+ if(!(s->flags & CODEC_FLAG_GRAY)) {
+ s->dsp.vc1_h_overlap(s->dest[1], s->uvlinesize);
+ s->dsp.vc1_h_overlap(s->dest[2], s->uvlinesize);
+ }
+ }
+ s->dsp.vc1_h_overlap(s->dest[0] + 8, s->linesize);
+ s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
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);
+ s->dsp.vc1_v_overlap(s->dest[0], s->linesize);
+ s->dsp.vc1_v_overlap(s->dest[0] + 8, s->linesize);
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[1], s->uvlinesize);
+ s->dsp.vc1_v_overlap(s->dest[2], s->uvlinesize);
}
}
- 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);
+ s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
+ s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
+ }
+
+ 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;
+ }
+
+ //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;
+ /* Set DC scale - y and c use the same */
+ s->y_dc_scale = s->y_dc_scale_table[mquant];
+ s->c_dc_scale = s->c_dc_scale_table[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(overlap) {
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);
+ s->dsp.vc1_h_overlap(s->dest[0], s->linesize);
+ s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
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[1], s->uvlinesize);
+ s->dsp.vc1_h_overlap(s->dest[2], s->uvlinesize);
}
}
- 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);
+ s->dsp.vc1_h_overlap(s->dest[0] + 8, s->linesize);
+ s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
+ if(!s->first_slice_line) {
+ s->dsp.vc1_v_overlap(s->dest[0], s->linesize);
+ s->dsp.vc1_v_overlap(s->dest[0] + 8, s->linesize);
+ if(!(s->flags & CODEC_FLAG_GRAY)) {
+ s->dsp.vc1_v_overlap(s->dest[1], s->uvlinesize);
+ s->dsp.vc1_v_overlap(s->dest[2], s->uvlinesize);
+ }
+ }
+ s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
+ s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
}
if(get_bits_count(&s->gb) > v->bits) {
}
}
+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:
- vc1_decode_b_blocks(v);
+ if(v->bi_type){
+ if(v->profile == PROFILE_ADVANCED)
+ vc1_decode_i_blocks_adv(v);
+ else
+ vc1_decode_i_blocks(v);
+ }else
+ vc1_decode_b_blocks(v);
break;
}
}
+#define IS_MARKER(x) (((x) & ~0xFF) == VC1_CODE_RES0)
+
+/** Find VC-1 marker in buffer
+ * @return position where next marker starts or end of buffer if no marker found
+ */
+static av_always_inline uint8_t* find_next_marker(uint8_t *src, uint8_t *end)
+{
+ uint32_t mrk = 0xFFFFFFFF;
+
+ if(end-src < 4) return end;
+ while(src < end){
+ mrk = (mrk << 8) | *src++;
+ if(IS_MARKER(mrk))
+ return src-4;
+ }
+ return end;
+}
+
+static av_always_inline int vc1_unescape_buffer(uint8_t *src, int size, uint8_t *dst)
+{
+ int dsize = 0, i;
+
+ if(size < 4){
+ for(dsize = 0; dsize < size; dsize++) *dst++ = *src++;
+ return size;
+ }
+ for(i = 0; i < size; i++, src++) {
+ if(src[0] == 3 && i >= 2 && !src[-1] && !src[-2] && i < size-1 && src[1] < 4) {
+ dst[dsize++] = src[1];
+ src++;
+ i++;
+ } else
+ dst[dsize++] = *src;
+ }
+ return dsize;
+}
/** Initialize a VC1/WMV3 decoder
* @todo TODO: Handle VC-1 IDUs (Transport level?)
{
av_log(avctx, AV_LOG_INFO, "Read %i bits in overflow\n", -count);
}
+ } else { // VC1/WVC1
+ uint8_t *start = avctx->extradata, *end = avctx->extradata + avctx->extradata_size;
+ uint8_t *next; int size, buf2_size;
+ uint8_t *buf2 = NULL;
+ int seq_inited = 0, ep_inited = 0;
+
+ if(avctx->extradata_size < 16) {
+ av_log(avctx, AV_LOG_ERROR, "Extradata size too small: %i\n", avctx->extradata_size);
+ return -1;
+ }
+
+ buf2 = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+ if(start[0]) start++; // in WVC1 extradata first byte is its size
+ next = start;
+ for(; next < end; start = next){
+ next = find_next_marker(start + 4, end);
+ size = next - start - 4;
+ if(size <= 0) continue;
+ buf2_size = vc1_unescape_buffer(start + 4, size, buf2);
+ init_get_bits(&gb, buf2, buf2_size * 8);
+ switch(AV_RB32(start)){
+ case VC1_CODE_SEQHDR:
+ if(decode_sequence_header(avctx, &gb) < 0){
+ av_free(buf2);
+ return -1;
+ }
+ seq_inited = 1;
+ break;
+ case VC1_CODE_ENTRYPOINT:
+ if(decode_entry_point(avctx, &gb) < 0){
+ av_free(buf2);
+ return -1;
+ }
+ ep_inited = 1;
+ break;
+ }
+ }
+ av_free(buf2);
+ if(!seq_inited || !ep_inited){
+ av_log(avctx, AV_LOG_ERROR, "Incomplete extradata\n");
+ 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->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);
/* 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);
/** 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;
+ //for advanced profile we may need to parse and unescape data
+ if (avctx->codec_id == CODEC_ID_VC1) {
+ int buf_size2 = 0;
+ buf2 = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
+
+ if(IS_MARKER(AV_RB32(buf))){ /* frame starts with marker and needs to be parsed */
+ uint8_t *dst = buf2, *start, *end, *next;
+ int size;
+
+ next = buf;
+ for(start = buf, end = buf + buf_size; next < end; start = next){
+ next = find_next_marker(start + 4, end);
+ size = next - start - 4;
+ if(size <= 0) continue;
+ switch(AV_RB32(start)){
+ case VC1_CODE_FRAME:
+ buf_size2 = vc1_unescape_buffer(start + 4, size, buf2);
+ break;
+ case VC1_CODE_ENTRYPOINT: /* it should be before frame data */
+ buf_size2 = vc1_unescape_buffer(start + 4, size, buf2);
+ init_get_bits(&s->gb, buf2, buf_size2*8);
+ decode_entry_point(avctx, &s->gb);
+ break;
+ case VC1_CODE_SLICE:
+ av_log(avctx, AV_LOG_ERROR, "Sliced decoding is not implemented (yet)\n");
+ av_free(buf2);
+ return -1;
+ }
+ }
+ }else if(v->interlace && ((buf[0] & 0xC0) == 0xC0)){ /* WVC1 interlaced stores both fields divided by marker */
+ uint8_t *divider;
+
+ divider = find_next_marker(buf, buf + buf_size);
+ if((divider == (buf + buf_size)) || AV_RB32(divider) != VC1_CODE_FIELD){
+ av_log(avctx, AV_LOG_ERROR, "Error in WVC1 interlaced frame\n");
+ return -1;
+ }
- init_get_bits(&s->gb, buf, buf_size*8);
+ buf_size2 = vc1_unescape_buffer(buf, divider - buf, buf2);
+ // TODO
+ av_free(buf2);return -1;
+ }else{
+ buf_size2 = vc1_unescape_buffer(buf, buf_size, buf2);
+ }
+ 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 && !v->res_rtm_flag)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;
}
MPV_common_end(&v->s);
av_freep(&v->mv_type_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;
}
CODEC_CAP_DELAY,
NULL
};
+
+#ifdef CONFIG_VC1_PARSER
+/**
+ * finds the end of the current frame in the bitstream.
+ * @return the position of the first byte of the next frame, or -1
+ */
+static int vc1_find_frame_end(ParseContext *pc, const uint8_t *buf,
+ int buf_size) {
+ int pic_found, i;
+ uint32_t state;
+
+ pic_found= pc->frame_start_found;
+ state= pc->state;
+
+ i=0;
+ if(!pic_found){
+ for(i=0; i<buf_size; i++){
+ state= (state<<8) | buf[i];
+ if(state == VC1_CODE_FRAME || state == VC1_CODE_FIELD){
+ i++;
+ pic_found=1;
+ break;
+ }
+ }
+ }
+
+ if(pic_found){
+ /* EOF considered as end of frame */
+ if (buf_size == 0)
+ return 0;
+ for(; i<buf_size; i++){
+ state= (state<<8) | buf[i];
+ if(IS_MARKER(state) && state != VC1_CODE_FIELD && state != VC1_CODE_SLICE){
+ pc->frame_start_found=0;
+ pc->state=-1;
+ return i-3;
+ }
+ }
+ }
+ pc->frame_start_found= pic_found;
+ pc->state= state;
+ return END_NOT_FOUND;
+}
+
+static int vc1_parse(AVCodecParserContext *s,
+ AVCodecContext *avctx,
+ uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size)
+{
+ ParseContext *pc = s->priv_data;
+ int next;
+
+ if(s->flags & PARSER_FLAG_COMPLETE_FRAMES){
+ next= buf_size;
+ }else{
+ next= vc1_find_frame_end(pc, buf, buf_size);
+
+ if (ff_combine_frame(pc, next, (uint8_t **)&buf, &buf_size) < 0) {
+ *poutbuf = NULL;
+ *poutbuf_size = 0;
+ return buf_size;
+ }
+ }
+ *poutbuf = (uint8_t *)buf;
+ *poutbuf_size = buf_size;
+ return next;
+}
+
+static int vc1_split(AVCodecContext *avctx,
+ const uint8_t *buf, int buf_size)
+{
+ int i;
+ uint32_t state= -1;
+
+ for(i=0; i<buf_size; i++){
+ state= (state<<8) | buf[i];
+ if(IS_MARKER(state) && state != VC1_CODE_SEQHDR && state != VC1_CODE_ENTRYPOINT)
+ return i-3;
+ }
+ return 0;
+}
+
+AVCodecParser vc1_parser = {
+ { CODEC_ID_VC1 },
+ sizeof(ParseContext1),
+ NULL,
+ vc1_parse,
+ ff_parse1_close,
+ vc1_split,
+};
+#endif /* CONFIG_VC1_PARSER */
projects / ffmpeg / blobdiff