diff options
author | Diego Biurrun <diego@biurrun.de> | 2008-11-22 19:36:50 +0300 |
---|---|---|
committer | Diego Biurrun <diego@biurrun.de> | 2008-11-22 19:36:50 +0300 |
commit | 76de302dd854f460ea1a22cfe768d11dde85fa6b (patch) | |
tree | ab5b37352ecaa902ebbe760905b1403d513272a8 /libavcodec/svq3.c | |
parent | 7f8205da4cc6dd7a03502ffa14ae6288f803426c (diff) |
cosmetics: indentation, prettyprinting
Originally committed as revision 15908 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/svq3.c')
-rw-r--r-- | libavcodec/svq3.c | 1536 |
1 files changed, 768 insertions, 768 deletions
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c index f20f72e87d..a2f533c01f 100644 --- a/libavcodec/svq3.c +++ b/libavcodec/svq3.c @@ -65,95 +65,96 @@ / o-->o-->o-->o */ -static const uint8_t svq3_scan[16]={ - 0+0*4, 1+0*4, 2+0*4, 2+1*4, - 2+2*4, 3+0*4, 3+1*4, 3+2*4, - 0+1*4, 0+2*4, 1+1*4, 1+2*4, - 0+3*4, 1+3*4, 2+3*4, 3+3*4, +static const uint8_t svq3_scan[16] = { + 0+0*4, 1+0*4, 2+0*4, 2+1*4, + 2+2*4, 3+0*4, 3+1*4, 3+2*4, + 0+1*4, 0+2*4, 1+1*4, 1+2*4, + 0+3*4, 1+3*4, 2+3*4, 3+3*4, }; static const uint8_t svq3_pred_0[25][2] = { - { 0, 0 }, - { 1, 0 }, { 0, 1 }, - { 0, 2 }, { 1, 1 }, { 2, 0 }, - { 3, 0 }, { 2, 1 }, { 1, 2 }, { 0, 3 }, - { 0, 4 }, { 1, 3 }, { 2, 2 }, { 3, 1 }, { 4, 0 }, - { 4, 1 }, { 3, 2 }, { 2, 3 }, { 1, 4 }, - { 2, 4 }, { 3, 3 }, { 4, 2 }, - { 4, 3 }, { 3, 4 }, - { 4, 4 } + { 0, 0 }, + { 1, 0 }, { 0, 1 }, + { 0, 2 }, { 1, 1 }, { 2, 0 }, + { 3, 0 }, { 2, 1 }, { 1, 2 }, { 0, 3 }, + { 0, 4 }, { 1, 3 }, { 2, 2 }, { 3, 1 }, { 4, 0 }, + { 4, 1 }, { 3, 2 }, { 2, 3 }, { 1, 4 }, + { 2, 4 }, { 3, 3 }, { 4, 2 }, + { 4, 3 }, { 3, 4 }, + { 4, 4 } }; static const int8_t svq3_pred_1[6][6][5] = { - { { 2,-1,-1,-1,-1 }, { 2, 1,-1,-1,-1 }, { 1, 2,-1,-1,-1 }, - { 2, 1,-1,-1,-1 }, { 1, 2,-1,-1,-1 }, { 1, 2,-1,-1,-1 } }, - { { 0, 2,-1,-1,-1 }, { 0, 2, 1, 4, 3 }, { 0, 1, 2, 4, 3 }, - { 0, 2, 1, 4, 3 }, { 2, 0, 1, 3, 4 }, { 0, 4, 2, 1, 3 } }, - { { 2, 0,-1,-1,-1 }, { 2, 1, 0, 4, 3 }, { 1, 2, 4, 0, 3 }, - { 2, 1, 0, 4, 3 }, { 2, 1, 4, 3, 0 }, { 1, 2, 4, 0, 3 } }, - { { 2, 0,-1,-1,-1 }, { 2, 0, 1, 4, 3 }, { 1, 2, 0, 4, 3 }, - { 2, 1, 0, 4, 3 }, { 2, 1, 3, 4, 0 }, { 2, 4, 1, 0, 3 } }, - { { 0, 2,-1,-1,-1 }, { 0, 2, 1, 3, 4 }, { 1, 2, 3, 0, 4 }, - { 2, 0, 1, 3, 4 }, { 2, 1, 3, 0, 4 }, { 2, 0, 4, 3, 1 } }, - { { 0, 2,-1,-1,-1 }, { 0, 2, 4, 1, 3 }, { 1, 4, 2, 0, 3 }, - { 4, 2, 0, 1, 3 }, { 2, 0, 1, 4, 3 }, { 4, 2, 1, 0, 3 } }, + { { 2,-1,-1,-1,-1 }, { 2, 1,-1,-1,-1 }, { 1, 2,-1,-1,-1 }, + { 2, 1,-1,-1,-1 }, { 1, 2,-1,-1,-1 }, { 1, 2,-1,-1,-1 } }, + { { 0, 2,-1,-1,-1 }, { 0, 2, 1, 4, 3 }, { 0, 1, 2, 4, 3 }, + { 0, 2, 1, 4, 3 }, { 2, 0, 1, 3, 4 }, { 0, 4, 2, 1, 3 } }, + { { 2, 0,-1,-1,-1 }, { 2, 1, 0, 4, 3 }, { 1, 2, 4, 0, 3 }, + { 2, 1, 0, 4, 3 }, { 2, 1, 4, 3, 0 }, { 1, 2, 4, 0, 3 } }, + { { 2, 0,-1,-1,-1 }, { 2, 0, 1, 4, 3 }, { 1, 2, 0, 4, 3 }, + { 2, 1, 0, 4, 3 }, { 2, 1, 3, 4, 0 }, { 2, 4, 1, 0, 3 } }, + { { 0, 2,-1,-1,-1 }, { 0, 2, 1, 3, 4 }, { 1, 2, 3, 0, 4 }, + { 2, 0, 1, 3, 4 }, { 2, 1, 3, 0, 4 }, { 2, 0, 4, 3, 1 } }, + { { 0, 2,-1,-1,-1 }, { 0, 2, 4, 1, 3 }, { 1, 4, 2, 0, 3 }, + { 4, 2, 0, 1, 3 }, { 2, 0, 1, 4, 3 }, { 4, 2, 1, 0, 3 } }, }; static const struct { uint8_t run; uint8_t level; } svq3_dct_tables[2][16] = { - { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 2, 1 }, { 0, 2 }, { 3, 1 }, { 4, 1 }, { 5, 1 }, - { 0, 3 }, { 1, 2 }, { 2, 2 }, { 6, 1 }, { 7, 1 }, { 8, 1 }, { 9, 1 }, { 0, 4 } }, - { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 0, 2 }, { 2, 1 }, { 0, 3 }, { 0, 4 }, { 0, 5 }, - { 3, 1 }, { 4, 1 }, { 1, 2 }, { 1, 3 }, { 0, 6 }, { 0, 7 }, { 0, 8 }, { 0, 9 } } + { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 2, 1 }, { 0, 2 }, { 3, 1 }, { 4, 1 }, { 5, 1 }, + { 0, 3 }, { 1, 2 }, { 2, 2 }, { 6, 1 }, { 7, 1 }, { 8, 1 }, { 9, 1 }, { 0, 4 } }, + { { 0, 0 }, { 0, 1 }, { 1, 1 }, { 0, 2 }, { 2, 1 }, { 0, 3 }, { 0, 4 }, { 0, 5 }, + { 3, 1 }, { 4, 1 }, { 1, 2 }, { 1, 3 }, { 0, 6 }, { 0, 7 }, { 0, 8 }, { 0, 9 } } }; static const uint32_t svq3_dequant_coeff[32] = { - 3881, 4351, 4890, 5481, 6154, 6914, 7761, 8718, - 9781, 10987, 12339, 13828, 15523, 17435, 19561, 21873, - 24552, 27656, 30847, 34870, 38807, 43747, 49103, 54683, - 61694, 68745, 77615, 89113,100253,109366,126635,141533 + 3881, 4351, 4890, 5481, 6154, 6914, 7761, 8718, + 9781, 10987, 12339, 13828, 15523, 17435, 19561, 21873, + 24552, 27656, 30847, 34870, 38807, 43747, 49103, 54683, + 61694, 68745, 77615, 89113,100253,109366,126635,141533 }; static void svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp) { - const int qmul= svq3_dequant_coeff[qp]; + const int qmul = svq3_dequant_coeff[qp]; #define stride 16 int i; int temp[16]; - static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride}; - static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride}; - - for(i=0; i<4; i++){ - const int offset= y_offset[i]; - const int z0= 13*(block[offset+stride*0] + block[offset+stride*4]); - const int z1= 13*(block[offset+stride*0] - block[offset+stride*4]); - const int z2= 7* block[offset+stride*1] - 17*block[offset+stride*5]; - const int z3= 17* block[offset+stride*1] + 7*block[offset+stride*5]; - - temp[4*i+0]= z0+z3; - temp[4*i+1]= z1+z2; - temp[4*i+2]= z1-z2; - temp[4*i+3]= z0-z3; + static const int x_offset[4] = {0, 1*stride, 4* stride, 5*stride}; + static const int y_offset[4] = {0, 2*stride, 8* stride, 10*stride}; + + for (i = 0; i < 4; i++){ + const int offset = y_offset[i]; + const int z0 = 13*(block[offset+stride*0] + block[offset+stride*4]); + const int z1 = 13*(block[offset+stride*0] - block[offset+stride*4]); + const int z2 = 7* block[offset+stride*1] - 17*block[offset+stride*5]; + const int z3 = 17* block[offset+stride*1] + 7*block[offset+stride*5]; + + temp[4*i+0] = z0+z3; + temp[4*i+1] = z1+z2; + temp[4*i+2] = z1-z2; + temp[4*i+3] = z0-z3; } - for(i=0; i<4; i++){ - const int offset= x_offset[i]; - const int z0= 13*(temp[4*0+i] + temp[4*2+i]); - const int z1= 13*(temp[4*0+i] - temp[4*2+i]); - const int z2= 7* temp[4*1+i] - 17*temp[4*3+i]; - const int z3= 17* temp[4*1+i] + 7*temp[4*3+i]; - - block[stride*0 +offset]= ((z0 + z3)*qmul + 0x80000)>>20; - block[stride*2 +offset]= ((z1 + z2)*qmul + 0x80000)>>20; - block[stride*8 +offset]= ((z1 - z2)*qmul + 0x80000)>>20; - block[stride*10+offset]= ((z0 - z3)*qmul + 0x80000)>>20; + for (i = 0; i < 4; i++){ + const int offset = x_offset[i]; + const int z0 = 13*(temp[4*0+i] + temp[4*2+i]); + const int z1 = 13*(temp[4*0+i] - temp[4*2+i]); + const int z2 = 7* temp[4*1+i] - 17*temp[4*3+i]; + const int z3 = 17* temp[4*1+i] + 7*temp[4*3+i]; + + block[stride*0 +offset] = ((z0 + z3)*qmul + 0x80000) >> 20; + block[stride*2 +offset] = ((z1 + z2)*qmul + 0x80000) >> 20; + block[stride*8 +offset] = ((z1 - z2)*qmul + 0x80000) >> 20; + block[stride*10+offset] = ((z0 - z3)*qmul + 0x80000) >> 20; } } #undef stride -static void svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc) +static void svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, + int dc) { - const int qmul= svq3_dequant_coeff[qp]; + const int qmul = svq3_dequant_coeff[qp]; int i; uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; @@ -162,87 +163,87 @@ static void svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, in block[0] = 0; } - for (i=0; i < 4; i++) { - const int z0= 13*(block[0 + 4*i] + block[2 + 4*i]); - const int z1= 13*(block[0 + 4*i] - block[2 + 4*i]); - const int z2= 7* block[1 + 4*i] - 17*block[3 + 4*i]; - const int z3= 17* block[1 + 4*i] + 7*block[3 + 4*i]; + for (i = 0; i < 4; i++) { + const int z0 = 13*(block[0 + 4*i] + block[2 + 4*i]); + const int z1 = 13*(block[0 + 4*i] - block[2 + 4*i]); + const int z2 = 7* block[1 + 4*i] - 17*block[3 + 4*i]; + const int z3 = 17* block[1 + 4*i] + 7*block[3 + 4*i]; - block[0 + 4*i]= z0 + z3; - block[1 + 4*i]= z1 + z2; - block[2 + 4*i]= z1 - z2; - block[3 + 4*i]= z0 - z3; + block[0 + 4*i] = z0 + z3; + block[1 + 4*i] = z1 + z2; + block[2 + 4*i] = z1 - z2; + block[3 + 4*i] = z0 - z3; } - for (i=0; i < 4; i++) { - const int z0= 13*(block[i + 4*0] + block[i + 4*2]); - const int z1= 13*(block[i + 4*0] - block[i + 4*2]); - const int z2= 7* block[i + 4*1] - 17*block[i + 4*3]; - const int z3= 17* block[i + 4*1] + 7*block[i + 4*3]; - const int rr= (dc + 0x80000); - - dst[i + stride*0]= cm[ dst[i + stride*0] + (((z0 + z3)*qmul + rr) >> 20) ]; - dst[i + stride*1]= cm[ dst[i + stride*1] + (((z1 + z2)*qmul + rr) >> 20) ]; - dst[i + stride*2]= cm[ dst[i + stride*2] + (((z1 - z2)*qmul + rr) >> 20) ]; - dst[i + stride*3]= cm[ dst[i + stride*3] + (((z0 - z3)*qmul + rr) >> 20) ]; + for (i = 0; i < 4; i++) { + const int z0 = 13*(block[i + 4*0] + block[i + 4*2]); + const int z1 = 13*(block[i + 4*0] - block[i + 4*2]); + const int z2 = 7* block[i + 4*1] - 17*block[i + 4*3]; + const int z3 = 17* block[i + 4*1] + 7*block[i + 4*3]; + const int rr = (dc + 0x80000); + + dst[i + stride*0] = cm[ dst[i + stride*0] + (((z0 + z3)*qmul + rr) >> 20) ]; + dst[i + stride*1] = cm[ dst[i + stride*1] + (((z1 + z2)*qmul + rr) >> 20) ]; + dst[i + stride*2] = cm[ dst[i + stride*2] + (((z1 - z2)*qmul + rr) >> 20) ]; + dst[i + stride*3] = cm[ dst[i + stride*3] + (((z0 - z3)*qmul + rr) >> 20) ]; } } static inline int svq3_decode_block(GetBitContext *gb, DCTELEM *block, int index, const int type) { - static const uint8_t *const scan_patterns[4] = - { luma_dc_zigzag_scan, zigzag_scan, svq3_scan, chroma_dc_scan }; + static const uint8_t *const scan_patterns[4] = + { luma_dc_zigzag_scan, zigzag_scan, svq3_scan, chroma_dc_scan }; - int run, level, sign, vlc, limit; - const int intra = (3 * type) >> 2; - const uint8_t *const scan = scan_patterns[type]; + int run, level, sign, vlc, limit; + const int intra = (3 * type) >> 2; + const uint8_t *const scan = scan_patterns[type]; - for (limit=(16 >> intra); index < 16; index=limit, limit+=8) { - for (; (vlc = svq3_get_ue_golomb (gb)) != 0; index++) { + for (limit = (16 >> intra); index < 16; index = limit, limit += 8) { + for (; (vlc = svq3_get_ue_golomb(gb)) != 0; index++) { - if (vlc == INVALID_VLC) - return -1; - - sign = (vlc & 0x1) - 1; - vlc = (vlc + 1) >> 1; + if (vlc == INVALID_VLC) + return -1; - if (type == 3) { - if (vlc < 3) { - run = 0; - level = vlc; - } else if (vlc < 4) { - run = 1; - level = 1; - } else { - run = (vlc & 0x3); - level = ((vlc + 9) >> 2) - run; - } - } else { - if (vlc < 16) { - run = svq3_dct_tables[intra][vlc].run; - level = svq3_dct_tables[intra][vlc].level; - } else if (intra) { - run = (vlc & 0x7); - level = (vlc >> 3) + ((run == 0) ? 8 : ((run < 2) ? 2 : ((run < 5) ? 0 : -1))); - } else { - run = (vlc & 0xF); - level = (vlc >> 4) + ((run == 0) ? 4 : ((run < 3) ? 2 : ((run < 10) ? 1 : 0))); - } - } + sign = (vlc & 0x1) - 1; + vlc = (vlc + 1) >> 1; + + if (type == 3) { + if (vlc < 3) { + run = 0; + level = vlc; + } else if (vlc < 4) { + run = 1; + level = 1; + } else { + run = (vlc & 0x3); + level = ((vlc + 9) >> 2) - run; + } + } else { + if (vlc < 16) { + run = svq3_dct_tables[intra][vlc].run; + level = svq3_dct_tables[intra][vlc].level; + } else if (intra) { + run = (vlc & 0x7); + level = (vlc >> 3) + ((run == 0) ? 8 : ((run < 2) ? 2 : ((run < 5) ? 0 : -1))); + } else { + run = (vlc & 0xF); + level = (vlc >> 4) + ((run == 0) ? 4 : ((run < 3) ? 2 : ((run < 10) ? 1 : 0))); + } + } - if ((index += run) >= limit) - return -1; + if ((index += run) >= limit) + return -1; - block[scan[index]] = (level ^ sign) - sign; - } + block[scan[index]] = (level ^ sign) - sign; + } - if (type != 2) { - break; + if (type != 2) { + break; + } } - } - return 0; + return 0; } static inline void svq3_mc_dir_part(MpegEncContext *s, @@ -250,778 +251,777 @@ static inline void svq3_mc_dir_part(MpegEncContext *s, int mx, int my, int dxy, int thirdpel, int dir, int avg) { - const Picture *pic = (dir == 0) ? &s->last_picture : &s->next_picture; - uint8_t *src, *dest; - int i, emu = 0; - int blocksize= 2 - (width>>3); //16->0, 8->1, 4->2 + const Picture *pic = (dir == 0) ? &s->last_picture : &s->next_picture; + uint8_t *src, *dest; + int i, emu = 0; + int blocksize = 2 - (width>>3); //16->0, 8->1, 4->2 + + mx += x; + my += y; - mx += x; - my += y; + if (mx < 0 || mx >= (s->h_edge_pos - width - 1) || + my < 0 || my >= (s->v_edge_pos - height - 1)) { - if (mx < 0 || mx >= (s->h_edge_pos - width - 1) || - my < 0 || my >= (s->v_edge_pos - height - 1)) { + if ((s->flags & CODEC_FLAG_EMU_EDGE)) { + emu = 1; + } - if ((s->flags & CODEC_FLAG_EMU_EDGE)) { - emu = 1; + mx = av_clip (mx, -16, (s->h_edge_pos - width + 15)); + my = av_clip (my, -16, (s->v_edge_pos - height + 15)); } - mx = av_clip (mx, -16, (s->h_edge_pos - width + 15)); - my = av_clip (my, -16, (s->v_edge_pos - height + 15)); - } - - /* form component predictions */ - dest = s->current_picture.data[0] + x + y*s->linesize; - src = pic->data[0] + mx + my*s->linesize; - - if (emu) { - ff_emulated_edge_mc (s->edge_emu_buffer, src, s->linesize, (width + 1), (height + 1), - mx, my, s->h_edge_pos, s->v_edge_pos); - src = s->edge_emu_buffer; - } - if(thirdpel) - (avg ? s->dsp.avg_tpel_pixels_tab : s->dsp.put_tpel_pixels_tab)[dxy](dest, src, s->linesize, width, height); - else - (avg ? s->dsp.avg_pixels_tab : s->dsp.put_pixels_tab)[blocksize][dxy](dest, src, s->linesize, height); - - if (!(s->flags & CODEC_FLAG_GRAY)) { - mx = (mx + (mx < (int) x)) >> 1; - my = (my + (my < (int) y)) >> 1; - width = (width >> 1); - height = (height >> 1); - blocksize++; - - for (i=1; i < 3; i++) { - dest = s->current_picture.data[i] + (x >> 1) + (y >> 1)*s->uvlinesize; - src = pic->data[i] + mx + my*s->uvlinesize; - - if (emu) { - ff_emulated_edge_mc (s->edge_emu_buffer, src, s->uvlinesize, (width + 1), (height + 1), - mx, my, (s->h_edge_pos >> 1), (s->v_edge_pos >> 1)); + /* form component predictions */ + dest = s->current_picture.data[0] + x + y*s->linesize; + src = pic->data[0] + mx + my*s->linesize; + + if (emu) { + ff_emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, (width + 1), (height + 1), + mx, my, s->h_edge_pos, s->v_edge_pos); src = s->edge_emu_buffer; - } - if(thirdpel) - (avg ? s->dsp.avg_tpel_pixels_tab : s->dsp.put_tpel_pixels_tab)[dxy](dest, src, s->uvlinesize, width, height); - else - (avg ? s->dsp.avg_pixels_tab : s->dsp.put_pixels_tab)[blocksize][dxy](dest, src, s->uvlinesize, height); } - } + if (thirdpel) + (avg ? s->dsp.avg_tpel_pixels_tab : s->dsp.put_tpel_pixels_tab)[dxy](dest, src, s->linesize, width, height); + else + (avg ? s->dsp.avg_pixels_tab : s->dsp.put_pixels_tab)[blocksize][dxy](dest, src, s->linesize, height); + + if (!(s->flags & CODEC_FLAG_GRAY)) { + mx = (mx + (mx < (int) x)) >> 1; + my = (my + (my < (int) y)) >> 1; + width = (width >> 1); + height = (height >> 1); + blocksize++; + + for (i = 1; i < 3; i++) { + dest = s->current_picture.data[i] + (x >> 1) + (y >> 1)*s->uvlinesize; + src = pic->data[i] + mx + my*s->uvlinesize; + + if (emu) { + ff_emulated_edge_mc(s->edge_emu_buffer, src, s->uvlinesize, (width + 1), (height + 1), + mx, my, (s->h_edge_pos >> 1), (s->v_edge_pos >> 1)); + src = s->edge_emu_buffer; + } + if (thirdpel) + (avg ? s->dsp.avg_tpel_pixels_tab : s->dsp.put_tpel_pixels_tab)[dxy](dest, src, s->uvlinesize, width, height); + else + (avg ? s->dsp.avg_pixels_tab : s->dsp.put_pixels_tab)[blocksize][dxy](dest, src, s->uvlinesize, height); + } + } } static inline int svq3_mc_dir(H264Context *h, int size, int mode, int dir, int avg) { - int i, j, k, mx, my, dx, dy, x, y; - MpegEncContext *const s = (MpegEncContext *) h; - const int part_width = ((size & 5) == 4) ? 4 : 16 >> (size & 1); - const int part_height = 16 >> ((unsigned) (size + 1) / 3); - const int extra_width = (mode == PREDICT_MODE) ? -16*6 : 0; - const int h_edge_pos = 6*(s->h_edge_pos - part_width ) - extra_width; - const int v_edge_pos = 6*(s->v_edge_pos - part_height) - extra_width; - - for (i=0; i < 16; i+=part_height) { - for (j=0; j < 16; j+=part_width) { - const int b_xy = (4*s->mb_x+(j>>2)) + (4*s->mb_y+(i>>2))*h->b_stride; - int dxy; - x = 16*s->mb_x + j; - y = 16*s->mb_y + i; - k = ((j>>2)&1) + ((i>>1)&2) + ((j>>1)&4) + (i&8); - - if (mode != PREDICT_MODE) { - pred_motion (h, k, (part_width >> 2), dir, 1, &mx, &my); - } else { - mx = s->next_picture.motion_val[0][b_xy][0]<<1; - my = s->next_picture.motion_val[0][b_xy][1]<<1; - - if (dir == 0) { - mx = ((mx * h->frame_num_offset) / h->prev_frame_num_offset + 1)>>1; - my = ((my * h->frame_num_offset) / h->prev_frame_num_offset + 1)>>1; - } else { - mx = ((mx * (h->frame_num_offset - h->prev_frame_num_offset)) / h->prev_frame_num_offset + 1)>>1; - my = ((my * (h->frame_num_offset - h->prev_frame_num_offset)) / h->prev_frame_num_offset + 1)>>1; - } - } - - /* clip motion vector prediction to frame border */ - mx = av_clip (mx, extra_width - 6*x, h_edge_pos - 6*x); - my = av_clip (my, extra_width - 6*y, v_edge_pos - 6*y); - - /* get (optional) motion vector differential */ - if (mode == PREDICT_MODE) { - dx = dy = 0; - } else { - dy = svq3_get_se_golomb (&s->gb); - dx = svq3_get_se_golomb (&s->gb); - - if (dx == INVALID_VLC || dy == INVALID_VLC) { - av_log(h->s.avctx, AV_LOG_ERROR, "invalid MV vlc\n"); - return -1; - } - } - - /* compute motion vector */ - if (mode == THIRDPEL_MODE) { - int fx, fy; - mx = ((mx + 1)>>1) + dx; - my = ((my + 1)>>1) + dy; - fx= ((unsigned)(mx + 0x3000))/3 - 0x1000; - fy= ((unsigned)(my + 0x3000))/3 - 0x1000; - dxy= (mx - 3*fx) + 4*(my - 3*fy); - - svq3_mc_dir_part (s, x, y, part_width, part_height, fx, fy, dxy, 1, dir, avg); - mx += mx; - my += my; - } else if (mode == HALFPEL_MODE || mode == PREDICT_MODE) { - mx = ((unsigned)(mx + 1 + 0x3000))/3 + dx - 0x1000; - my = ((unsigned)(my + 1 + 0x3000))/3 + dy - 0x1000; - dxy= (mx&1) + 2*(my&1); - - svq3_mc_dir_part (s, x, y, part_width, part_height, mx>>1, my>>1, dxy, 0, dir, avg); - mx *= 3; - my *= 3; - } else { - mx = ((unsigned)(mx + 3 + 0x6000))/6 + dx - 0x1000; - my = ((unsigned)(my + 3 + 0x6000))/6 + dy - 0x1000; - - svq3_mc_dir_part (s, x, y, part_width, part_height, mx, my, 0, 0, dir, avg); - mx *= 6; - my *= 6; - } - - /* update mv_cache */ - if (mode != PREDICT_MODE) { - int32_t mv = pack16to32(mx,my); - - if (part_height == 8 && i < 8) { - *(int32_t *) h->mv_cache[dir][scan8[k] + 1*8] = mv; - - if (part_width == 8 && j < 8) { - *(int32_t *) h->mv_cache[dir][scan8[k] + 1 + 1*8] = mv; - } - } - if (part_width == 8 && j < 8) { - *(int32_t *) h->mv_cache[dir][scan8[k] + 1] = mv; + int i, j, k, mx, my, dx, dy, x, y; + MpegEncContext *const s = (MpegEncContext *) h; + const int part_width = ((size & 5) == 4) ? 4 : 16 >> (size & 1); + const int part_height = 16 >> ((unsigned) (size + 1) / 3); + const int extra_width = (mode == PREDICT_MODE) ? -16*6 : 0; + const int h_edge_pos = 6*(s->h_edge_pos - part_width ) - extra_width; + const int v_edge_pos = 6*(s->v_edge_pos - part_height) - extra_width; + + for (i = 0; i < 16; i += part_height) { + for (j = 0; j < 16; j += part_width) { + const int b_xy = (4*s->mb_x + (j >> 2)) + (4*s->mb_y + (i >> 2))*h->b_stride; + int dxy; + x = 16*s->mb_x + j; + y = 16*s->mb_y + i; + k = ((j >> 2) & 1) + ((i >> 1) & 2) + ((j >> 1) & 4) + (i & 8); + + if (mode != PREDICT_MODE) { + pred_motion(h, k, (part_width >> 2), dir, 1, &mx, &my); + } else { + mx = s->next_picture.motion_val[0][b_xy][0]<<1; + my = s->next_picture.motion_val[0][b_xy][1]<<1; + + if (dir == 0) { + mx = ((mx * h->frame_num_offset) / h->prev_frame_num_offset + 1) >> 1; + my = ((my * h->frame_num_offset) / h->prev_frame_num_offset + 1) >> 1; + } else { + mx = ((mx * (h->frame_num_offset - h->prev_frame_num_offset)) / h->prev_frame_num_offset + 1) >> 1; + my = ((my * (h->frame_num_offset - h->prev_frame_num_offset)) / h->prev_frame_num_offset + 1) >> 1; + } + } + + /* clip motion vector prediction to frame border */ + mx = av_clip(mx, extra_width - 6*x, h_edge_pos - 6*x); + my = av_clip(my, extra_width - 6*y, v_edge_pos - 6*y); + + /* get (optional) motion vector differential */ + if (mode == PREDICT_MODE) { + dx = dy = 0; + } else { + dy = svq3_get_se_golomb(&s->gb); + dx = svq3_get_se_golomb(&s->gb); + + if (dx == INVALID_VLC || dy == INVALID_VLC) { + av_log(h->s.avctx, AV_LOG_ERROR, "invalid MV vlc\n"); + return -1; + } + } + + /* compute motion vector */ + if (mode == THIRDPEL_MODE) { + int fx, fy; + mx = ((mx + 1)>>1) + dx; + my = ((my + 1)>>1) + dy; + fx = ((unsigned)(mx + 0x3000))/3 - 0x1000; + fy = ((unsigned)(my + 0x3000))/3 - 0x1000; + dxy = (mx - 3*fx) + 4*(my - 3*fy); + + svq3_mc_dir_part(s, x, y, part_width, part_height, fx, fy, dxy, 1, dir, avg); + mx += mx; + my += my; + } else if (mode == HALFPEL_MODE || mode == PREDICT_MODE) { + mx = ((unsigned)(mx + 1 + 0x3000))/3 + dx - 0x1000; + my = ((unsigned)(my + 1 + 0x3000))/3 + dy - 0x1000; + dxy = (mx&1) + 2*(my&1); + + svq3_mc_dir_part(s, x, y, part_width, part_height, mx>>1, my>>1, dxy, 0, dir, avg); + mx *= 3; + my *= 3; + } else { + mx = ((unsigned)(mx + 3 + 0x6000))/6 + dx - 0x1000; + my = ((unsigned)(my + 3 + 0x6000))/6 + dy - 0x1000; + + svq3_mc_dir_part(s, x, y, part_width, part_height, mx, my, 0, 0, dir, avg); + mx *= 6; + my *= 6; + } + + /* update mv_cache */ + if (mode != PREDICT_MODE) { + int32_t mv = pack16to32(mx,my); + + if (part_height == 8 && i < 8) { + *(int32_t *) h->mv_cache[dir][scan8[k] + 1*8] = mv; + + if (part_width == 8 && j < 8) { + *(int32_t *) h->mv_cache[dir][scan8[k] + 1 + 1*8] = mv; + } + } + if (part_width == 8 && j < 8) { + *(int32_t *) h->mv_cache[dir][scan8[k] + 1] = mv; + } + if (part_width == 4 || part_height == 4) { + *(int32_t *) h->mv_cache[dir][scan8[k]] = mv; + } + } + + /* write back motion vectors */ + fill_rectangle(s->current_picture.motion_val[dir][b_xy], part_width>>2, part_height>>2, h->b_stride, pack16to32(mx,my), 4); } - if (part_width == 4 || part_height == 4) { - *(int32_t *) h->mv_cache[dir][scan8[k]] = mv; - } - } - - /* write back motion vectors */ - fill_rectangle(s->current_picture.motion_val[dir][b_xy], part_width>>2, part_height>>2, h->b_stride, pack16to32(mx,my), 4); } - } - return 0; + return 0; } static int svq3_decode_mb(H264Context *h, unsigned int mb_type) { - int i, j, k, m, dir, mode; - int cbp = 0; - uint32_t vlc; - int8_t *top, *left; - MpegEncContext *const s = (MpegEncContext *) h; - const int mb_xy = h->mb_xy; - const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride; - - h->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF; - h->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF; - h->topright_samples_available = 0xFFFF; - - if (mb_type == 0) { /* SKIP */ - if (s->pict_type == FF_P_TYPE || s->next_picture.mb_type[mb_xy] == -1) { - svq3_mc_dir_part (s, 16*s->mb_x, 16*s->mb_y, 16, 16, 0, 0, 0, 0, 0, 0); - - if (s->pict_type == FF_B_TYPE) { - svq3_mc_dir_part (s, 16*s->mb_x, 16*s->mb_y, 16, 16, 0, 0, 0, 0, 1, 1); - } - - mb_type = MB_TYPE_SKIP; - } else { - mb_type= FFMIN(s->next_picture.mb_type[mb_xy], 6); - if(svq3_mc_dir (h, mb_type, PREDICT_MODE, 0, 0) < 0) - return -1; - if(svq3_mc_dir (h, mb_type, PREDICT_MODE, 1, 1) < 0) - return -1; - - mb_type = MB_TYPE_16x16; - } - } else if (mb_type < 8) { /* INTER */ - if (h->thirdpel_flag && h->halfpel_flag == !get_bits1 (&s->gb)) { - mode = THIRDPEL_MODE; - } else if (h->halfpel_flag && h->thirdpel_flag == !get_bits1 (&s->gb)) { - mode = HALFPEL_MODE; - } else { - mode = FULLPEL_MODE; - } + int i, j, k, m, dir, mode; + int cbp = 0; + uint32_t vlc; + int8_t *top, *left; + MpegEncContext *const s = (MpegEncContext *) h; + const int mb_xy = h->mb_xy; + const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride; + + h->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF; + h->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF; + h->topright_samples_available = 0xFFFF; + + if (mb_type == 0) { /* SKIP */ + if (s->pict_type == FF_P_TYPE || s->next_picture.mb_type[mb_xy] == -1) { + svq3_mc_dir_part(s, 16*s->mb_x, 16*s->mb_y, 16, 16, 0, 0, 0, 0, 0, 0); + + if (s->pict_type == FF_B_TYPE) { + svq3_mc_dir_part(s, 16*s->mb_x, 16*s->mb_y, 16, 16, 0, 0, 0, 0, 1, 1); + } + + mb_type = MB_TYPE_SKIP; + } else { + mb_type = FFMIN(s->next_picture.mb_type[mb_xy], 6); + if (svq3_mc_dir(h, mb_type, PREDICT_MODE, 0, 0) < 0) + return -1; + if (svq3_mc_dir(h, mb_type, PREDICT_MODE, 1, 1) < 0) + return -1; - /* fill caches */ - /* note ref_cache should contain here: - ???????? - ???11111 - N??11111 - N??11111 - N??11111 - */ - - for (m=0; m < 2; m++) { - if (s->mb_x > 0 && h->intra4x4_pred_mode[mb_xy - 1][0] != -1) { - for (i=0; i < 4; i++) { - *(uint32_t *) h->mv_cache[m][scan8[0] - 1 + i*8] = *(uint32_t *) s->current_picture.motion_val[m][b_xy - 1 + i*h->b_stride]; + mb_type = MB_TYPE_16x16; } - } else { - for (i=0; i < 4; i++) { - *(uint32_t *) h->mv_cache[m][scan8[0] - 1 + i*8] = 0; + } else if (mb_type < 8) { /* INTER */ + if (h->thirdpel_flag && h->halfpel_flag == !get_bits1 (&s->gb)) { + mode = THIRDPEL_MODE; + } else if (h->halfpel_flag && h->thirdpel_flag == !get_bits1 (&s->gb)) { + mode = HALFPEL_MODE; + } else { + mode = FULLPEL_MODE; } - } - if (s->mb_y > 0) { - memcpy (h->mv_cache[m][scan8[0] - 1*8], s->current_picture.motion_val[m][b_xy - h->b_stride], 4*2*sizeof(int16_t)); - memset (&h->ref_cache[m][scan8[0] - 1*8], (h->intra4x4_pred_mode[mb_xy - s->mb_stride][4] == -1) ? PART_NOT_AVAILABLE : 1, 4); - - if (s->mb_x < (s->mb_width - 1)) { - *(uint32_t *) h->mv_cache[m][scan8[0] + 4 - 1*8] = *(uint32_t *) s->current_picture.motion_val[m][b_xy - h->b_stride + 4]; - h->ref_cache[m][scan8[0] + 4 - 1*8] = - (h->intra4x4_pred_mode[mb_xy - s->mb_stride + 1][0] == -1 || - h->intra4x4_pred_mode[mb_xy - s->mb_stride][4] == -1) ? PART_NOT_AVAILABLE : 1; - }else - h->ref_cache[m][scan8[0] + 4 - 1*8] = PART_NOT_AVAILABLE; - if (s->mb_x > 0) { - *(uint32_t *) h->mv_cache[m][scan8[0] - 1 - 1*8] = *(uint32_t *) s->current_picture.motion_val[m][b_xy - h->b_stride - 1]; - h->ref_cache[m][scan8[0] - 1 - 1*8] = (h->intra4x4_pred_mode[mb_xy - s->mb_stride - 1][3] == -1) ? PART_NOT_AVAILABLE : 1; - }else - h->ref_cache[m][scan8[0] - 1 - 1*8] = PART_NOT_AVAILABLE; - }else - memset (&h->ref_cache[m][scan8[0] - 1*8 - 1], PART_NOT_AVAILABLE, 8); - - if (s->pict_type != FF_B_TYPE) - break; - } - /* decode motion vector(s) and form prediction(s) */ - if (s->pict_type == FF_P_TYPE) { - if(svq3_mc_dir (h, (mb_type - 1), mode, 0, 0) < 0) - return -1; - } else { /* FF_B_TYPE */ - if (mb_type != 2) { - if(svq3_mc_dir (h, 0, mode, 0, 0) < 0) - return -1; - } else { - for (i=0; i < 4; i++) { - memset (s->current_picture.motion_val[0][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t)); - } - } - if (mb_type != 1) { - if(svq3_mc_dir (h, 0, mode, 1, (mb_type == 3)) < 0) - return -1; - } else { - for (i=0; i < 4; i++) { - memset (s->current_picture.motion_val[1][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t)); + /* fill caches */ + /* note ref_cache should contain here: + ???????? + ???11111 + N??11111 + N??11111 + N??11111 + */ + + for (m = 0; m < 2; m++) { + if (s->mb_x > 0 && h->intra4x4_pred_mode[mb_xy - 1][0] != -1) { + for (i = 0; i < 4; i++) { + *(uint32_t *) h->mv_cache[m][scan8[0] - 1 + i*8] = *(uint32_t *) s->current_picture.motion_val[m][b_xy - 1 + i*h->b_stride]; + } + } else { + for (i = 0; i < 4; i++) { + *(uint32_t *) h->mv_cache[m][scan8[0] - 1 + i*8] = 0; + } + } + if (s->mb_y > 0) { + memcpy(h->mv_cache[m][scan8[0] - 1*8], s->current_picture.motion_val[m][b_xy - h->b_stride], 4*2*sizeof(int16_t)); + memset(&h->ref_cache[m][scan8[0] - 1*8], (h->intra4x4_pred_mode[mb_xy - s->mb_stride][4] == -1) ? PART_NOT_AVAILABLE : 1, 4); + + if (s->mb_x < (s->mb_width - 1)) { + *(uint32_t *) h->mv_cache[m][scan8[0] + 4 - 1*8] = *(uint32_t *) s->current_picture.motion_val[m][b_xy - h->b_stride + 4]; + h->ref_cache[m][scan8[0] + 4 - 1*8] = + (h->intra4x4_pred_mode[mb_xy - s->mb_stride + 1][0] == -1 || + h->intra4x4_pred_mode[mb_xy - s->mb_stride ][4] == -1) ? PART_NOT_AVAILABLE : 1; + }else + h->ref_cache[m][scan8[0] + 4 - 1*8] = PART_NOT_AVAILABLE; + if (s->mb_x > 0) { + *(uint32_t *) h->mv_cache[m][scan8[0] - 1 - 1*8] = *(uint32_t *) s->current_picture.motion_val[m][b_xy - h->b_stride - 1]; + h->ref_cache[m][scan8[0] - 1 - 1*8] = (h->intra4x4_pred_mode[mb_xy - s->mb_stride - 1][3] == -1) ? PART_NOT_AVAILABLE : 1; + }else + h->ref_cache[m][scan8[0] - 1 - 1*8] = PART_NOT_AVAILABLE; + }else + memset(&h->ref_cache[m][scan8[0] - 1*8 - 1], PART_NOT_AVAILABLE, 8); + + if (s->pict_type != FF_B_TYPE) + break; } - } - } - - mb_type = MB_TYPE_16x16; - } else if (mb_type == 8 || mb_type == 33) { /* INTRA4x4 */ - memset (h->intra4x4_pred_mode_cache, -1, 8*5*sizeof(int8_t)); - if (mb_type == 8) { - if (s->mb_x > 0) { - for (i=0; i < 4; i++) { - h->intra4x4_pred_mode_cache[scan8[0] - 1 + i*8] = h->intra4x4_pred_mode[mb_xy - 1][i]; - } - if (h->intra4x4_pred_mode_cache[scan8[0] - 1] == -1) { - h->left_samples_available = 0x5F5F; - } - } - if (s->mb_y > 0) { - h->intra4x4_pred_mode_cache[4+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][4]; - h->intra4x4_pred_mode_cache[5+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][5]; - h->intra4x4_pred_mode_cache[6+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][6]; - h->intra4x4_pred_mode_cache[7+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][3]; - - if (h->intra4x4_pred_mode_cache[4+8*0] == -1) { - h->top_samples_available = 0x33FF; + /* decode motion vector(s) and form prediction(s) */ + if (s->pict_type == FF_P_TYPE) { + if (svq3_mc_dir(h, (mb_type - 1), mode, 0, 0) < 0) + return -1; + } else { /* FF_B_TYPE */ + if (mb_type != 2) { + if (svq3_mc_dir(h, 0, mode, 0, 0) < 0) + return -1; + } else { + for (i = 0; i < 4; i++) { + memset(s->current_picture.motion_val[0][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t)); + } + } + if (mb_type != 1) { + if (svq3_mc_dir(h, 0, mode, 1, (mb_type == 3)) < 0) + return -1; + } else { + for (i = 0; i < 4; i++) { + memset(s->current_picture.motion_val[1][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t)); + } + } } - } - /* decode prediction codes for luma blocks */ - for (i=0; i < 16; i+=2) { - vlc = svq3_get_ue_golomb (&s->gb); - - if (vlc >= 25){ - av_log(h->s.avctx, AV_LOG_ERROR, "luma prediction:%d\n", vlc); - return -1; + mb_type = MB_TYPE_16x16; + } else if (mb_type == 8 || mb_type == 33) { /* INTRA4x4 */ + memset(h->intra4x4_pred_mode_cache, -1, 8*5*sizeof(int8_t)); + + if (mb_type == 8) { + if (s->mb_x > 0) { + for (i = 0; i < 4; i++) { + h->intra4x4_pred_mode_cache[scan8[0] - 1 + i*8] = h->intra4x4_pred_mode[mb_xy - 1][i]; + } + if (h->intra4x4_pred_mode_cache[scan8[0] - 1] == -1) { + h->left_samples_available = 0x5F5F; + } + } + if (s->mb_y > 0) { + h->intra4x4_pred_mode_cache[4+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][4]; + h->intra4x4_pred_mode_cache[5+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][5]; + h->intra4x4_pred_mode_cache[6+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][6]; + h->intra4x4_pred_mode_cache[7+8*0] = h->intra4x4_pred_mode[mb_xy - s->mb_stride][3]; + + if (h->intra4x4_pred_mode_cache[4+8*0] == -1) { + h->top_samples_available = 0x33FF; + } + } + + /* decode prediction codes for luma blocks */ + for (i = 0; i < 16; i+=2) { + vlc = svq3_get_ue_golomb(&s->gb); + + if (vlc >= 25){ + av_log(h->s.avctx, AV_LOG_ERROR, "luma prediction:%d\n", vlc); + return -1; + } + + left = &h->intra4x4_pred_mode_cache[scan8[i] - 1]; + top = &h->intra4x4_pred_mode_cache[scan8[i] - 8]; + + left[1] = svq3_pred_1[top[0] + 1][left[0] + 1][svq3_pred_0[vlc][0]]; + left[2] = svq3_pred_1[top[1] + 1][left[1] + 1][svq3_pred_0[vlc][1]]; + + if (left[1] == -1 || left[2] == -1){ + av_log(h->s.avctx, AV_LOG_ERROR, "weird prediction\n"); + return -1; + } + } + } else { /* mb_type == 33, DC_128_PRED block type */ + for (i = 0; i < 4; i++) { + memset(&h->intra4x4_pred_mode_cache[scan8[0] + 8*i], DC_PRED, 4); + } } - left = &h->intra4x4_pred_mode_cache[scan8[i] - 1]; - top = &h->intra4x4_pred_mode_cache[scan8[i] - 8]; - - left[1] = svq3_pred_1[top[0] + 1][left[0] + 1][svq3_pred_0[vlc][0]]; - left[2] = svq3_pred_1[top[1] + 1][left[1] + 1][svq3_pred_0[vlc][1]]; - - if (left[1] == -1 || left[2] == -1){ - av_log(h->s.avctx, AV_LOG_ERROR, "weird prediction\n"); - return -1; - } - } - } else { /* mb_type == 33, DC_128_PRED block type */ - for (i=0; i < 4; i++) { - memset (&h->intra4x4_pred_mode_cache[scan8[0] + 8*i], DC_PRED, 4); - } - } + write_back_intra_pred_mode(h); - write_back_intra_pred_mode (h); + if (mb_type == 8) { + check_intra4x4_pred_mode(h); - if (mb_type == 8) { - check_intra4x4_pred_mode (h); + h->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF; + h->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF; + } else { + for (i = 0; i < 4; i++) { + memset(&h->intra4x4_pred_mode_cache[scan8[0] + 8*i], DC_128_PRED, 4); + } - h->top_samples_available = (s->mb_y == 0) ? 0x33FF : 0xFFFF; - h->left_samples_available = (s->mb_x == 0) ? 0x5F5F : 0xFFFF; - } else { - for (i=0; i < 4; i++) { - memset (&h->intra4x4_pred_mode_cache[scan8[0] + 8*i], DC_128_PRED, 4); - } + h->top_samples_available = 0x33FF; + h->left_samples_available = 0x5F5F; + } - h->top_samples_available = 0x33FF; - h->left_samples_available = 0x5F5F; - } + mb_type = MB_TYPE_INTRA4x4; + } else { /* INTRA16x16 */ + dir = i_mb_type_info[mb_type - 8].pred_mode; + dir = (dir >> 1) ^ 3*(dir & 1) ^ 1; - mb_type = MB_TYPE_INTRA4x4; - } else { /* INTRA16x16 */ - dir = i_mb_type_info[mb_type - 8].pred_mode; - dir = (dir >> 1) ^ 3*(dir & 1) ^ 1; + if ((h->intra16x16_pred_mode = check_intra_pred_mode(h, dir)) == -1){ + av_log(h->s.avctx, AV_LOG_ERROR, "check_intra_pred_mode = -1\n"); + return -1; + } - if ((h->intra16x16_pred_mode = check_intra_pred_mode (h, dir)) == -1){ - av_log(h->s.avctx, AV_LOG_ERROR, "check_intra_pred_mode = -1\n"); - return -1; + cbp = i_mb_type_info[mb_type - 8].cbp; + mb_type = MB_TYPE_INTRA16x16; } - cbp = i_mb_type_info[mb_type - 8].cbp; - mb_type = MB_TYPE_INTRA16x16; - } - - if (!IS_INTER(mb_type) && s->pict_type != FF_I_TYPE) { - for (i=0; i < 4; i++) { - memset (s->current_picture.motion_val[0][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t)); + if (!IS_INTER(mb_type) && s->pict_type != FF_I_TYPE) { + for (i = 0; i < 4; i++) { + memset(s->current_picture.motion_val[0][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t)); + } + if (s->pict_type == FF_B_TYPE) { + for (i = 0; i < 4; i++) { + memset(s->current_picture.motion_val[1][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t)); + } + } } - if (s->pict_type == FF_B_TYPE) { - for (i=0; i < 4; i++) { - memset (s->current_picture.motion_val[1][b_xy + i*h->b_stride], 0, 4*2*sizeof(int16_t)); - } + if (!IS_INTRA4x4(mb_type)) { + memset(h->intra4x4_pred_mode[mb_xy], DC_PRED, 8); } - } - if (!IS_INTRA4x4(mb_type)) { - memset (h->intra4x4_pred_mode[mb_xy], DC_PRED, 8); - } - if (!IS_SKIP(mb_type) || s->pict_type == FF_B_TYPE) { - memset (h->non_zero_count_cache + 8, 0, 4*9*sizeof(uint8_t)); - s->dsp.clear_blocks(h->mb); - } - - if (!IS_INTRA16x16(mb_type) && (!IS_SKIP(mb_type) || s->pict_type == FF_B_TYPE)) { - if ((vlc = svq3_get_ue_golomb (&s->gb)) >= 48){ - av_log(h->s.avctx, AV_LOG_ERROR, "cbp_vlc=%d\n", vlc); - return -1; + if (!IS_SKIP(mb_type) || s->pict_type == FF_B_TYPE) { + memset(h->non_zero_count_cache + 8, 0, 4*9*sizeof(uint8_t)); + s->dsp.clear_blocks(h->mb); } - cbp = IS_INTRA(mb_type) ? golomb_to_intra4x4_cbp[vlc] : golomb_to_inter_cbp[vlc]; - } - if (IS_INTRA16x16(mb_type) || (s->pict_type != FF_I_TYPE && s->adaptive_quant && cbp)) { - s->qscale += svq3_get_se_golomb (&s->gb); + if (!IS_INTRA16x16(mb_type) && (!IS_SKIP(mb_type) || s->pict_type == FF_B_TYPE)) { + if ((vlc = svq3_get_ue_golomb(&s->gb)) >= 48){ + av_log(h->s.avctx, AV_LOG_ERROR, "cbp_vlc=%d\n", vlc); + return -1; + } - if (s->qscale > 31){ - av_log(h->s.avctx, AV_LOG_ERROR, "qscale:%d\n", s->qscale); - return -1; - } - } - if (IS_INTRA16x16(mb_type)) { - if (svq3_decode_block (&s->gb, h->mb, 0, 0)){ - av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding intra luma dc\n"); - return -1; + cbp = IS_INTRA(mb_type) ? golomb_to_intra4x4_cbp[vlc] : golomb_to_inter_cbp[vlc]; } - } - - if (cbp) { - const int index = IS_INTRA16x16(mb_type) ? 1 : 0; - const int type = ((s->qscale < 24 && IS_INTRA4x4(mb_type)) ? 2 : 1); - - for (i=0; i < 4; i++) { - if ((cbp & (1 << i))) { - for (j=0; j < 4; j++) { - k = index ? ((j&1) + 2*(i&1) + 2*(j&2) + 4*(i&2)) : (4*i + j); - h->non_zero_count_cache[ scan8[k] ] = 1; + if (IS_INTRA16x16(mb_type) || (s->pict_type != FF_I_TYPE && s->adaptive_quant && cbp)) { + s->qscale += svq3_get_se_golomb(&s->gb); - if (svq3_decode_block (&s->gb, &h->mb[16*k], index, type)){ - av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding block\n"); + if (s->qscale > 31){ + av_log(h->s.avctx, AV_LOG_ERROR, "qscale:%d\n", s->qscale); return -1; - } } - } } - - if ((cbp & 0x30)) { - for (i=0; i < 2; ++i) { - if (svq3_decode_block (&s->gb, &h->mb[16*(16 + 4*i)], 0, 3)){ - av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding chroma dc block\n"); - return -1; + if (IS_INTRA16x16(mb_type)) { + if (svq3_decode_block(&s->gb, h->mb, 0, 0)){ + av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding intra luma dc\n"); + return -1; } - } + } - if ((cbp & 0x20)) { - for (i=0; i < 8; i++) { - h->non_zero_count_cache[ scan8[16+i] ] = 1; + if (cbp) { + const int index = IS_INTRA16x16(mb_type) ? 1 : 0; + const int type = ((s->qscale < 24 && IS_INTRA4x4(mb_type)) ? 2 : 1); + + for (i = 0; i < 4; i++) { + if ((cbp & (1 << i))) { + for (j = 0; j < 4; j++) { + k = index ? ((j&1) + 2*(i&1) + 2*(j&2) + 4*(i&2)) : (4*i + j); + h->non_zero_count_cache[ scan8[k] ] = 1; + + if (svq3_decode_block(&s->gb, &h->mb[16*k], index, type)){ + av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding block\n"); + return -1; + } + } + } + } - if (svq3_decode_block (&s->gb, &h->mb[16*(16 + i)], 1, 1)){ - av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding chroma ac block\n"); - return -1; - } + if ((cbp & 0x30)) { + for (i = 0; i < 2; ++i) { + if (svq3_decode_block(&s->gb, &h->mb[16*(16 + 4*i)], 0, 3)){ + av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding chroma dc block\n"); + return -1; + } + } + + if ((cbp & 0x20)) { + for (i = 0; i < 8; i++) { + h->non_zero_count_cache[ scan8[16+i] ] = 1; + + if (svq3_decode_block(&s->gb, &h->mb[16*(16 + i)], 1, 1)){ + av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding chroma ac block\n"); + return -1; + } + } + } } - } } - } - s->current_picture.mb_type[mb_xy] = mb_type; + s->current_picture.mb_type[mb_xy] = mb_type; - if (IS_INTRA(mb_type)) { - h->chroma_pred_mode = check_intra_pred_mode (h, DC_PRED8x8); - } + if (IS_INTRA(mb_type)) { + h->chroma_pred_mode = check_intra_pred_mode(h, DC_PRED8x8); + } - return 0; + return 0; } static int svq3_decode_slice_header(H264Context *h) { - MpegEncContext *const s = (MpegEncContext *) h; - const int mb_xy = h->mb_xy; - int i, header; + MpegEncContext *const s = (MpegEncContext *) h; + const int mb_xy = h->mb_xy; + int i, header; - header = get_bits (&s->gb, 8); + header = get_bits(&s->gb, 8); - if (((header & 0x9F) != 1 && (header & 0x9F) != 2) || (header & 0x60) == 0) { - /* TODO: what? */ - av_log(h->s.avctx, AV_LOG_ERROR, "unsupported slice header (%02X)\n", header); - return -1; - } else { - int length = (header >> 5) & 3; + if (((header & 0x9F) != 1 && (header & 0x9F) != 2) || (header & 0x60) == 0) { + /* TODO: what? */ + av_log(h->s.avctx, AV_LOG_ERROR, "unsupported slice header (%02X)\n", header); + return -1; + } else { + int length = (header >> 5) & 3; - h->next_slice_index = get_bits_count(&s->gb) + 8*show_bits (&s->gb, 8*length) + 8*length; + h->next_slice_index = get_bits_count(&s->gb) + 8*show_bits(&s->gb, 8*length) + 8*length; - if (h->next_slice_index > s->gb.size_in_bits){ - av_log(h->s.avctx, AV_LOG_ERROR, "slice after bitstream end\n"); - return -1; + if (h->next_slice_index > s->gb.size_in_bits) { + av_log(h->s.avctx, AV_LOG_ERROR, "slice after bitstream end\n"); + return -1; } - s->gb.size_in_bits = h->next_slice_index - 8*(length - 1); - skip_bits(&s->gb, 8); + s->gb.size_in_bits = h->next_slice_index - 8*(length - 1); + skip_bits(&s->gb, 8); - if (h->svq3_watermark_key) { - uint32_t header = AV_RL32(&s->gb.buffer[(get_bits_count(&s->gb)>>3)+1]); - AV_WL32(&s->gb.buffer[(get_bits_count(&s->gb)>>3)+1], header ^ h->svq3_watermark_key); - } - if (length > 0) { - memcpy ((uint8_t *) &s->gb.buffer[get_bits_count(&s->gb) >> 3], - &s->gb.buffer[s->gb.size_in_bits >> 3], (length - 1)); + if (h->svq3_watermark_key) { + uint32_t header = AV_RL32(&s->gb.buffer[(get_bits_count(&s->gb)>>3)+1]); + AV_WL32(&s->gb.buffer[(get_bits_count(&s->gb)>>3)+1], header ^ h->svq3_watermark_key); + } + if (length > 0) { + memcpy((uint8_t *) &s->gb.buffer[get_bits_count(&s->gb) >> 3], + &s->gb.buffer[s->gb.size_in_bits >> 3], (length - 1)); + } } - } - if ((i = svq3_get_ue_golomb (&s->gb)) == INVALID_VLC || i >= 3){ - av_log(h->s.avctx, AV_LOG_ERROR, "illegal slice type %d \n", i); - return -1; - } - - h->slice_type = golomb_to_pict_type[i]; + if ((i = svq3_get_ue_golomb(&s->gb)) == INVALID_VLC || i >= 3){ + av_log(h->s.avctx, AV_LOG_ERROR, "illegal slice type %d \n", i); + return -1; + } - if ((header & 0x9F) == 2) { - i = (s->mb_num < 64) ? 6 : (1 + av_log2 (s->mb_num - 1)); - s->mb_skip_run = get_bits (&s->gb, i) - (s->mb_x + (s->mb_y * s->mb_width)); - } else { - skip_bits1 (&s->gb); - s->mb_skip_run = 0; - } + h->slice_type = golomb_to_pict_type[i]; - h->slice_num = get_bits (&s->gb, 8); - s->qscale = get_bits (&s->gb, 5); - s->adaptive_quant = get_bits1 (&s->gb); + if ((header & 0x9F) == 2) { + i = (s->mb_num < 64) ? 6 : (1 + av_log2 (s->mb_num - 1)); + s->mb_skip_run = get_bits(&s->gb, i) - (s->mb_x + (s->mb_y * s->mb_width)); + } else { + skip_bits1(&s->gb); + s->mb_skip_run = 0; + } - /* unknown fields */ - skip_bits1 (&s->gb); + h->slice_num = get_bits(&s->gb, 8); + s->qscale = get_bits(&s->gb, 5); + s->adaptive_quant = get_bits1(&s->gb); - if (h->unknown_svq3_flag) { - skip_bits1 (&s->gb); - } + /* unknown fields */ + skip_bits1(&s->gb); - skip_bits1 (&s->gb); - skip_bits (&s->gb, 2); + if (h->unknown_svq3_flag) { + skip_bits1(&s->gb); + } - while (get_bits1 (&s->gb)) { - skip_bits (&s->gb, 8); - } + skip_bits1(&s->gb); + skip_bits(&s->gb, 2); - /* reset intra predictors and invalidate motion vector references */ - if (s->mb_x > 0) { - memset (h->intra4x4_pred_mode[mb_xy - 1], -1, 4*sizeof(int8_t)); - memset (h->intra4x4_pred_mode[mb_xy - s->mb_x], -1, 8*sizeof(int8_t)*s->mb_x); - } - if (s->mb_y > 0) { - memset (h->intra4x4_pred_mode[mb_xy - s->mb_stride], -1, 8*sizeof(int8_t)*(s->mb_width - s->mb_x)); + while (get_bits1(&s->gb)) { + skip_bits(&s->gb, 8); + } + /* reset intra predictors and invalidate motion vector references */ if (s->mb_x > 0) { - h->intra4x4_pred_mode[mb_xy - s->mb_stride - 1][3] = -1; + memset(h->intra4x4_pred_mode[mb_xy - 1], -1, 4*sizeof(int8_t)); + memset(h->intra4x4_pred_mode[mb_xy - s->mb_x], -1, 8*sizeof(int8_t)*s->mb_x); + } + if (s->mb_y > 0) { + memset(h->intra4x4_pred_mode[mb_xy - s->mb_stride], -1, 8*sizeof(int8_t)*(s->mb_width - s->mb_x)); + + if (s->mb_x > 0) { + h->intra4x4_pred_mode[mb_xy - s->mb_stride - 1][3] = -1; + } } - } - return 0; + return 0; } static int svq3_decode_frame(AVCodecContext *avctx, void *data, int *data_size, const uint8_t *buf, int buf_size) { - MpegEncContext *const s = avctx->priv_data; - H264Context *const h = avctx->priv_data; - int m, mb_type; - unsigned char *extradata; - unsigned int size; - - s->flags = avctx->flags; - s->flags2 = avctx->flags2; - s->unrestricted_mv = 1; - - if (!s->context_initialized) { - s->width = avctx->width; - s->height = avctx->height; - h->halfpel_flag = 1; - h->thirdpel_flag = 1; - h->unknown_svq3_flag = 0; - h->chroma_qp[0] = h->chroma_qp[1] = 4; - - if (MPV_common_init (s) < 0) - return -1; - - h->b_stride = 4*s->mb_width; - - alloc_tables (h); - - /* prowl for the "SEQH" marker in the extradata */ - extradata = (unsigned char *)avctx->extradata; - for (m = 0; m < avctx->extradata_size; m++) { - if (!memcmp (extradata, "SEQH", 4)) - break; - extradata++; - } + MpegEncContext *const s = avctx->priv_data; + H264Context *const h = avctx->priv_data; + int m, mb_type; + unsigned char *extradata; + unsigned int size; + + s->flags = avctx->flags; + s->flags2 = avctx->flags2; + s->unrestricted_mv = 1; + + if (!s->context_initialized) { + s->width = avctx->width; + s->height = avctx->height; + h->halfpel_flag = 1; + h->thirdpel_flag = 1; + h->unknown_svq3_flag = 0; + h->chroma_qp[0] = h->chroma_qp[1] = 4; + + if (MPV_common_init(s) < 0) + return -1; - /* if a match was found, parse the extra data */ - if (extradata && !memcmp (extradata, "SEQH", 4)) { + h->b_stride = 4*s->mb_width; - GetBitContext gb; + alloc_tables(h); - size = AV_RB32(&extradata[4]); - init_get_bits (&gb, extradata + 8, size*8); + /* prowl for the "SEQH" marker in the extradata */ + extradata = (unsigned char *)avctx->extradata; + for (m = 0; m < avctx->extradata_size; m++) { + if (!memcmp(extradata, "SEQH", 4)) + break; + extradata++; + } - /* 'frame size code' and optional 'width, height' */ - if (get_bits (&gb, 3) == 7) { - skip_bits (&gb, 12); - skip_bits (&gb, 12); - } + /* if a match was found, parse the extra data */ + if (extradata && !memcmp(extradata, "SEQH", 4)) { - h->halfpel_flag = get_bits1 (&gb); - h->thirdpel_flag = get_bits1 (&gb); + GetBitContext gb; - /* unknown fields */ - skip_bits1 (&gb); - skip_bits1 (&gb); - skip_bits1 (&gb); - skip_bits1 (&gb); + size = AV_RB32(&extradata[4]); + init_get_bits(&gb, extradata + 8, size*8); - s->low_delay = get_bits1 (&gb); + /* 'frame size code' and optional 'width, height' */ + if (get_bits(&gb, 3) == 7) { + skip_bits(&gb, 12); + skip_bits(&gb, 12); + } - /* unknown field */ - skip_bits1 (&gb); + h->halfpel_flag = get_bits1(&gb); + h->thirdpel_flag = get_bits1(&gb); - while (get_bits1 (&gb)) { - skip_bits (&gb, 8); - } + /* unknown fields */ + skip_bits1(&gb); + skip_bits1(&gb); + skip_bits1(&gb); + skip_bits1(&gb); - h->unknown_svq3_flag = get_bits1 (&gb); - avctx->has_b_frames = !s->low_delay; - if (h->unknown_svq3_flag) { -#ifdef CONFIG_ZLIB - unsigned watermark_width = svq3_get_ue_golomb(&gb); - unsigned watermark_height = svq3_get_ue_golomb(&gb); - int u1 = svq3_get_ue_golomb(&gb); - int u2 = get_bits(&gb, 8); - int u3 = get_bits(&gb, 2); - int u4 = svq3_get_ue_golomb(&gb); - unsigned buf_len = watermark_width*watermark_height*4; - int offset = (get_bits_count(&gb)+7)>>3; - uint8_t *buf; - - if ((uint64_t)watermark_width*4 > UINT_MAX/watermark_height) - return -1; + s->low_delay = get_bits1(&gb); - buf = av_malloc(buf_len); - av_log(avctx, AV_LOG_DEBUG, "watermark size: %dx%d\n", watermark_width, watermark_height); - av_log(avctx, AV_LOG_DEBUG, "u1: %x u2: %x u3: %x compressed data size: %d offset: %d\n", u1, u2, u3, u4, offset); - if (uncompress(buf, (uLong*)&buf_len, extradata + 8 + offset, size - offset) != Z_OK) { - av_log(avctx, AV_LOG_ERROR, "could not uncompress watermark logo\n"); - av_free(buf); - return -1; - } - h->svq3_watermark_key = ff_svq1_packet_checksum(buf, buf_len, 0); - h->svq3_watermark_key = h->svq3_watermark_key << 16 | h->svq3_watermark_key; - av_log(avctx, AV_LOG_DEBUG, "watermark key %#x\n", h->svq3_watermark_key); - av_free(buf); + /* unknown field */ + skip_bits1(&gb); + + while (get_bits1(&gb)) { + skip_bits(&gb, 8); + } + + h->unknown_svq3_flag = get_bits1(&gb); + avctx->has_b_frames = !s->low_delay; + if (h->unknown_svq3_flag) { +#ifdef CONFIG_ZLIB + unsigned watermark_width = svq3_get_ue_golomb(&gb); + unsigned watermark_height = svq3_get_ue_golomb(&gb); + int u1 = svq3_get_ue_golomb(&gb); + int u2 = get_bits(&gb, 8); + int u3 = get_bits(&gb, 2); + int u4 = svq3_get_ue_golomb(&gb); + unsigned buf_len = watermark_width*watermark_height*4; + int offset = (get_bits_count(&gb)+7)>>3; + uint8_t *buf; + + if ((uint64_t)watermark_width*4 > UINT_MAX/watermark_height) + return -1; + + buf = av_malloc(buf_len); + av_log(avctx, AV_LOG_DEBUG, "watermark size: %dx%d\n", watermark_width, watermark_height); + av_log(avctx, AV_LOG_DEBUG, "u1: %x u2: %x u3: %x compressed data size: %d offset: %d\n", u1, u2, u3, u4, offset); + if (uncompress(buf, (uLong*)&buf_len, extradata + 8 + offset, size - offset) != Z_OK) { + av_log(avctx, AV_LOG_ERROR, "could not uncompress watermark logo\n"); + av_free(buf); + return -1; + } + h->svq3_watermark_key = ff_svq1_packet_checksum(buf, buf_len, 0); + h->svq3_watermark_key = h->svq3_watermark_key << 16 | h->svq3_watermark_key; + av_log(avctx, AV_LOG_DEBUG, "watermark key %#x\n", h->svq3_watermark_key); + av_free(buf); #else - av_log(avctx, AV_LOG_ERROR, "this svq3 file contains watermark which need zlib support compiled in\n"); - return -1; + av_log(avctx, AV_LOG_ERROR, "this svq3 file contains watermark which need zlib support compiled in\n"); + return -1; #endif - } + } + } } - } - - /* special case for last picture */ - if (buf_size == 0) { - if (s->next_picture_ptr && !s->low_delay) { - *(AVFrame *) data = *(AVFrame *) &s->next_picture; - s->next_picture_ptr= NULL; - *data_size = sizeof(AVFrame); + + /* special case for last picture */ + if (buf_size == 0) { + if (s->next_picture_ptr && !s->low_delay) { + *(AVFrame *) data = *(AVFrame *) &s->next_picture; + s->next_picture_ptr = NULL; + *data_size = sizeof(AVFrame); + } + return 0; } - return 0; - } - init_get_bits (&s->gb, buf, 8*buf_size); + init_get_bits (&s->gb, buf, 8*buf_size); - s->mb_x = s->mb_y = h->mb_xy = 0; + s->mb_x = s->mb_y = h->mb_xy = 0; - if (svq3_decode_slice_header (h)) - return -1; + if (svq3_decode_slice_header(h)) + return -1; - s->pict_type = h->slice_type; - s->picture_number = h->slice_num; + s->pict_type = h->slice_type; + s->picture_number = h->slice_num; - if(avctx->debug&FF_DEBUG_PICT_INFO){ - av_log(h->s.avctx, AV_LOG_DEBUG, "%c hpel:%d, tpel:%d aqp:%d qp:%d, slice_num:%02X\n", - av_get_pict_type_char(s->pict_type), h->halfpel_flag, h->thirdpel_flag, - s->adaptive_quant, s->qscale, h->slice_num - ); - } + if (avctx->debug&FF_DEBUG_PICT_INFO){ + av_log(h->s.avctx, AV_LOG_DEBUG, "%c hpel:%d, tpel:%d aqp:%d qp:%d, slice_num:%02X\n", + av_get_pict_type_char(s->pict_type), h->halfpel_flag, h->thirdpel_flag, + s->adaptive_quant, s->qscale, h->slice_num); + } - /* for hurry_up==5 */ - s->current_picture.pict_type = s->pict_type; - s->current_picture.key_frame = (s->pict_type == FF_I_TYPE); + /* for hurry_up == 5 */ + s->current_picture.pict_type = s->pict_type; + s->current_picture.key_frame = (s->pict_type == FF_I_TYPE); + + /* Skip B-frames if we do not have reference frames. */ + if (s->last_picture_ptr == NULL && s->pict_type == FF_B_TYPE) + return 0; + /* Skip B-frames if we are in a hurry. */ + if (avctx->hurry_up && s->pict_type == FF_B_TYPE) + return 0; + /* Skip everything if we are in a hurry >= 5. */ + if (avctx->hurry_up >= 5) + return 0; + if ( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type == FF_B_TYPE) + ||(avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type != FF_I_TYPE) + || avctx->skip_frame >= AVDISCARD_ALL) + return 0; + + if (s->next_p_frame_damaged) { + if (s->pict_type == FF_B_TYPE) + return 0; + else + s->next_p_frame_damaged = 0; + } - /* Skip B-frames if we do not have reference frames. */ - if (s->last_picture_ptr == NULL && s->pict_type == FF_B_TYPE) - return 0; - /* Skip B-frames if we are in a hurry. */ - if (avctx->hurry_up && s->pict_type == FF_B_TYPE) - return 0; - /* Skip everything if we are in a hurry >= 5. */ - if (avctx->hurry_up >= 5) - return 0; - if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==FF_B_TYPE) - ||(avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=FF_I_TYPE) - || avctx->skip_frame >= AVDISCARD_ALL) - return 0; - - if (s->next_p_frame_damaged) { - if (s->pict_type == FF_B_TYPE) - return 0; - else - s->next_p_frame_damaged = 0; - } + if (frame_start(h) < 0) + return -1; - if (frame_start (h) < 0) - return -1; + if (s->pict_type == FF_B_TYPE) { + h->frame_num_offset = (h->slice_num - h->prev_frame_num); - if (s->pict_type == FF_B_TYPE) { - h->frame_num_offset = (h->slice_num - h->prev_frame_num); + if (h->frame_num_offset < 0) { + h->frame_num_offset += 256; + } + if (h->frame_num_offset == 0 || h->frame_num_offset >= h->prev_frame_num_offset) { + av_log(h->s.avctx, AV_LOG_ERROR, "error in B-frame picture id\n"); + return -1; + } + } else { + h->prev_frame_num = h->frame_num; + h->frame_num = h->slice_num; + h->prev_frame_num_offset = (h->frame_num - h->prev_frame_num); - if (h->frame_num_offset < 0) { - h->frame_num_offset += 256; - } - if (h->frame_num_offset == 0 || h->frame_num_offset >= h->prev_frame_num_offset) { - av_log(h->s.avctx, AV_LOG_ERROR, "error in B-frame picture id\n"); - return -1; + if (h->prev_frame_num_offset < 0) { + h->prev_frame_num_offset += 256; + } } - } else { - h->prev_frame_num = h->frame_num; - h->frame_num = h->slice_num; - h->prev_frame_num_offset = (h->frame_num - h->prev_frame_num); - if (h->prev_frame_num_offset < 0) { - h->prev_frame_num_offset += 256; + for (m = 0; m < 2; m++){ + int i; + for (i = 0; i < 4; i++){ + int j; + for (j = -1; j < 4; j++) + h->ref_cache[m][scan8[0] + 8*i + j]= 1; + if (i < 3) + h->ref_cache[m][scan8[0] + 8*i + j]= PART_NOT_AVAILABLE; + } } - } - for(m=0; m<2; m++){ - int i; - for(i=0; i<4; i++){ - int j; - for(j=-1; j<4; j++) - h->ref_cache[m][scan8[0] + 8*i + j]= 1; - if(i<3) - h->ref_cache[m][scan8[0] + 8*i + j]= PART_NOT_AVAILABLE; - } - } + 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++) { + h->mb_xy = s->mb_x + s->mb_y*s->mb_stride; - 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++) { - h->mb_xy = s->mb_x + s->mb_y*s->mb_stride; + if ( (get_bits_count(&s->gb) + 7) >= s->gb.size_in_bits && + ((get_bits_count(&s->gb) & 7) == 0 || show_bits(&s->gb, (-get_bits_count(&s->gb) & 7)) == 0)) { - if ( (get_bits_count(&s->gb) + 7) >= s->gb.size_in_bits && - ((get_bits_count(&s->gb) & 7) == 0 || show_bits (&s->gb, (-get_bits_count(&s->gb) & 7)) == 0)) { + skip_bits(&s->gb, h->next_slice_index - get_bits_count(&s->gb)); + s->gb.size_in_bits = 8*buf_size; - skip_bits(&s->gb, h->next_slice_index - get_bits_count(&s->gb)); - s->gb.size_in_bits = 8*buf_size; + if (svq3_decode_slice_header(h)) + return -1; - if (svq3_decode_slice_header (h)) - return -1; + /* TODO: support s->mb_skip_run */ + } - /* TODO: support s->mb_skip_run */ - } + mb_type = svq3_get_ue_golomb(&s->gb); - mb_type = svq3_get_ue_golomb (&s->gb); + if (s->pict_type == FF_I_TYPE) { + mb_type += 8; + } else if (s->pict_type == FF_B_TYPE && mb_type >= 4) { + mb_type += 4; + } + if (mb_type > 33 || svq3_decode_mb(h, mb_type)) { + av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y); + return -1; + } - if (s->pict_type == FF_I_TYPE) { - mb_type += 8; - } else if (s->pict_type == FF_B_TYPE && mb_type >= 4) { - mb_type += 4; - } - if (mb_type > 33 || svq3_decode_mb (h, mb_type)) { - av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y); - return -1; - } + if (mb_type != 0) { + hl_decode_mb (h); + } - if (mb_type != 0) { - hl_decode_mb (h); - } + if (s->pict_type != FF_B_TYPE && !s->low_delay) { + s->current_picture.mb_type[s->mb_x + s->mb_y*s->mb_stride] = + (s->pict_type == FF_P_TYPE && mb_type < 8) ? (mb_type - 1) : -1; + } + } - if (s->pict_type != FF_B_TYPE && !s->low_delay) { - s->current_picture.mb_type[s->mb_x + s->mb_y*s->mb_stride] = - (s->pict_type == FF_P_TYPE && mb_type < 8) ? (mb_type - 1) : -1; - } + ff_draw_horiz_band(s, 16*s->mb_y, 16); } - ff_draw_horiz_band(s, 16*s->mb_y, 16); - } + MPV_frame_end(s); - MPV_frame_end(s); - - if (s->pict_type == FF_B_TYPE || s->low_delay) { - *(AVFrame *) data = *(AVFrame *) &s->current_picture; - } else { - *(AVFrame *) data = *(AVFrame *) &s->last_picture; - } + if (s->pict_type == FF_B_TYPE || s->low_delay) { + *(AVFrame *) data = *(AVFrame *) &s->current_picture; + } else { + *(AVFrame *) data = *(AVFrame *) &s->last_picture; + } - avctx->frame_number = s->picture_number - 1; + avctx->frame_number = s->picture_number - 1; - /* Do not output the last pic after seeking. */ - if (s->last_picture_ptr || s->low_delay) { - *data_size = sizeof(AVFrame); - } + /* Do not output the last pic after seeking. */ + if (s->last_picture_ptr || s->low_delay) { + *data_size = sizeof(AVFrame); + } - return buf_size; + return buf_size; } |