Libav 0.7.1
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00001 /* 00002 * VC-1 HW decode acceleration through VA API 00003 * 00004 * Copyright (C) 2008-2009 Splitted-Desktop Systems 00005 * 00006 * This file is part of Libav. 00007 * 00008 * Libav is free software; you can redistribute it and/or 00009 * modify it under the terms of the GNU Lesser General Public 00010 * License as published by the Free Software Foundation; either 00011 * version 2.1 of the License, or (at your option) any later version. 00012 * 00013 * Libav is distributed in the hope that it will be useful, 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00016 * Lesser General Public License for more details. 00017 * 00018 * You should have received a copy of the GNU Lesser General Public 00019 * License along with Libav; if not, write to the Free Software 00020 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00021 */ 00022 00023 #include "vaapi_internal.h" 00024 #include "vc1.h" 00025 #include "vc1data.h" 00026 00028 static int get_VAMvModeVC1(enum MVModes mv_mode) 00029 { 00030 switch (mv_mode) { 00031 case MV_PMODE_1MV_HPEL_BILIN: return VAMvMode1MvHalfPelBilinear; 00032 case MV_PMODE_1MV: return VAMvMode1Mv; 00033 case MV_PMODE_1MV_HPEL: return VAMvMode1MvHalfPel; 00034 case MV_PMODE_MIXED_MV: return VAMvModeMixedMv; 00035 case MV_PMODE_INTENSITY_COMP: return VAMvModeIntensityCompensation; 00036 } 00037 return 0; 00038 } 00039 00041 static inline int vc1_has_MVTYPEMB_bitplane(VC1Context *v) 00042 { 00043 if (v->mv_type_is_raw) 00044 return 0; 00045 return (v->s.pict_type == AV_PICTURE_TYPE_P && 00046 (v->mv_mode == MV_PMODE_MIXED_MV || 00047 (v->mv_mode == MV_PMODE_INTENSITY_COMP && 00048 v->mv_mode2 == MV_PMODE_MIXED_MV))); 00049 } 00050 00052 static inline int vc1_has_SKIPMB_bitplane(VC1Context *v) 00053 { 00054 if (v->skip_is_raw) 00055 return 0; 00056 return (v->s.pict_type == AV_PICTURE_TYPE_P || 00057 (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type)); 00058 } 00059 00061 static inline int vc1_has_DIRECTMB_bitplane(VC1Context *v) 00062 { 00063 if (v->dmb_is_raw) 00064 return 0; 00065 return v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type; 00066 } 00067 00069 static inline int vc1_has_ACPRED_bitplane(VC1Context *v) 00070 { 00071 if (v->acpred_is_raw) 00072 return 0; 00073 return (v->profile == PROFILE_ADVANCED && 00074 (v->s.pict_type == AV_PICTURE_TYPE_I || 00075 (v->s.pict_type == AV_PICTURE_TYPE_B && v->bi_type))); 00076 } 00077 00079 static inline int vc1_has_OVERFLAGS_bitplane(VC1Context *v) 00080 { 00081 if (v->overflg_is_raw) 00082 return 0; 00083 return (v->profile == PROFILE_ADVANCED && 00084 (v->s.pict_type == AV_PICTURE_TYPE_I || 00085 (v->s.pict_type == AV_PICTURE_TYPE_B && v->bi_type)) && 00086 (v->overlap && v->pq <= 8) && 00087 v->condover == CONDOVER_SELECT); 00088 } 00089 00091 static int vc1_get_PTYPE(VC1Context *v) 00092 { 00093 MpegEncContext * const s = &v->s; 00094 switch (s->pict_type) { 00095 case AV_PICTURE_TYPE_I: return 0; 00096 case AV_PICTURE_TYPE_P: return v->p_frame_skipped ? 4 : 1; 00097 case AV_PICTURE_TYPE_B: return v->bi_type ? 3 : 2; 00098 } 00099 return 0; 00100 } 00101 00103 static inline VAMvModeVC1 vc1_get_MVMODE(VC1Context *v) 00104 { 00105 if (v->s.pict_type == AV_PICTURE_TYPE_P || 00106 (v->s.pict_type == AV_PICTURE_TYPE_B && !v->bi_type)) 00107 return get_VAMvModeVC1(v->mv_mode); 00108 return 0; 00109 } 00110 00112 static inline VAMvModeVC1 vc1_get_MVMODE2(VC1Context *v) 00113 { 00114 if (v->s.pict_type == AV_PICTURE_TYPE_P && v->mv_mode == MV_PMODE_INTENSITY_COMP) 00115 return get_VAMvModeVC1(v->mv_mode2); 00116 return 0; 00117 } 00118 00120 static inline void vc1_pack_bitplanes(uint8_t *bitplane, int n, const uint8_t *ff_bp[3], int x, int y, int stride) 00121 { 00122 const int bitplane_index = n / 2; 00123 const int ff_bp_index = y * stride + x; 00124 uint8_t v = 0; 00125 if (ff_bp[0]) 00126 v = ff_bp[0][ff_bp_index]; 00127 if (ff_bp[1]) 00128 v |= ff_bp[1][ff_bp_index] << 1; 00129 if (ff_bp[2]) 00130 v |= ff_bp[2][ff_bp_index] << 2; 00131 bitplane[bitplane_index] = (bitplane[bitplane_index] << 4) | v; 00132 } 00133 00134 static int vaapi_vc1_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size) 00135 { 00136 VC1Context * const v = avctx->priv_data; 00137 MpegEncContext * const s = &v->s; 00138 struct vaapi_context * const vactx = avctx->hwaccel_context; 00139 VAPictureParameterBufferVC1 *pic_param; 00140 00141 av_dlog(avctx, "vaapi_vc1_start_frame()\n"); 00142 00143 vactx->slice_param_size = sizeof(VASliceParameterBufferVC1); 00144 00145 /* Fill in VAPictureParameterBufferVC1 */ 00146 pic_param = ff_vaapi_alloc_pic_param(vactx, sizeof(VAPictureParameterBufferVC1)); 00147 if (!pic_param) 00148 return -1; 00149 pic_param->forward_reference_picture = VA_INVALID_ID; 00150 pic_param->backward_reference_picture = VA_INVALID_ID; 00151 pic_param->inloop_decoded_picture = VA_INVALID_ID; 00152 pic_param->sequence_fields.value = 0; /* reset all bits */ 00153 pic_param->sequence_fields.bits.pulldown = v->broadcast; 00154 pic_param->sequence_fields.bits.interlace = v->interlace; 00155 pic_param->sequence_fields.bits.tfcntrflag = v->tfcntrflag; 00156 pic_param->sequence_fields.bits.finterpflag = v->finterpflag; 00157 pic_param->sequence_fields.bits.psf = v->psf; 00158 pic_param->sequence_fields.bits.multires = v->multires; 00159 pic_param->sequence_fields.bits.overlap = v->overlap; 00160 pic_param->sequence_fields.bits.syncmarker = s->resync_marker; 00161 pic_param->sequence_fields.bits.rangered = v->rangered; 00162 pic_param->sequence_fields.bits.max_b_frames = s->avctx->max_b_frames; 00163 #if VA_CHECK_VERSION(0,32,0) 00164 pic_param->sequence_fields.bits.profile = v->profile; 00165 #endif 00166 pic_param->coded_width = s->avctx->coded_width; 00167 pic_param->coded_height = s->avctx->coded_height; 00168 pic_param->entrypoint_fields.value = 0; /* reset all bits */ 00169 pic_param->entrypoint_fields.bits.broken_link = v->broken_link; 00170 pic_param->entrypoint_fields.bits.closed_entry = v->closed_entry; 00171 pic_param->entrypoint_fields.bits.panscan_flag = v->panscanflag; 00172 pic_param->entrypoint_fields.bits.loopfilter = s->loop_filter; 00173 pic_param->conditional_overlap_flag = v->condover; 00174 pic_param->fast_uvmc_flag = v->fastuvmc; 00175 pic_param->range_mapping_fields.value = 0; /* reset all bits */ 00176 pic_param->range_mapping_fields.bits.luma_flag = v->range_mapy_flag; 00177 pic_param->range_mapping_fields.bits.luma = v->range_mapy; 00178 pic_param->range_mapping_fields.bits.chroma_flag = v->range_mapuv_flag; 00179 pic_param->range_mapping_fields.bits.chroma = v->range_mapuv; 00180 pic_param->b_picture_fraction = v->bfraction_lut_index; 00181 pic_param->cbp_table = v->cbpcy_vlc ? v->cbpcy_vlc - ff_vc1_cbpcy_p_vlc : 0; 00182 pic_param->mb_mode_table = 0; /* XXX: interlaced frame */ 00183 pic_param->range_reduction_frame = v->rangeredfrm; 00184 pic_param->rounding_control = v->rnd; 00185 pic_param->post_processing = v->postproc; 00186 pic_param->picture_resolution_index = v->respic; 00187 pic_param->luma_scale = v->lumscale; 00188 pic_param->luma_shift = v->lumshift; 00189 pic_param->picture_fields.value = 0; /* reset all bits */ 00190 pic_param->picture_fields.bits.picture_type = vc1_get_PTYPE(v); 00191 pic_param->picture_fields.bits.frame_coding_mode = v->fcm; 00192 pic_param->picture_fields.bits.top_field_first = v->tff; 00193 pic_param->picture_fields.bits.is_first_field = v->fcm == 0; /* XXX: interlaced frame */ 00194 pic_param->picture_fields.bits.intensity_compensation = v->mv_mode == MV_PMODE_INTENSITY_COMP; 00195 pic_param->raw_coding.value = 0; /* reset all bits */ 00196 pic_param->raw_coding.flags.mv_type_mb = v->mv_type_is_raw; 00197 pic_param->raw_coding.flags.direct_mb = v->dmb_is_raw; 00198 pic_param->raw_coding.flags.skip_mb = v->skip_is_raw; 00199 pic_param->raw_coding.flags.field_tx = 0; /* XXX: interlaced frame */ 00200 pic_param->raw_coding.flags.forward_mb = 0; /* XXX: interlaced frame */ 00201 pic_param->raw_coding.flags.ac_pred = v->acpred_is_raw; 00202 pic_param->raw_coding.flags.overflags = v->overflg_is_raw; 00203 pic_param->bitplane_present.value = 0; /* reset all bits */ 00204 pic_param->bitplane_present.flags.bp_mv_type_mb = vc1_has_MVTYPEMB_bitplane(v); 00205 pic_param->bitplane_present.flags.bp_direct_mb = vc1_has_DIRECTMB_bitplane(v); 00206 pic_param->bitplane_present.flags.bp_skip_mb = vc1_has_SKIPMB_bitplane(v); 00207 pic_param->bitplane_present.flags.bp_field_tx = 0; /* XXX: interlaced frame */ 00208 pic_param->bitplane_present.flags.bp_forward_mb = 0; /* XXX: interlaced frame */ 00209 pic_param->bitplane_present.flags.bp_ac_pred = vc1_has_ACPRED_bitplane(v); 00210 pic_param->bitplane_present.flags.bp_overflags = vc1_has_OVERFLAGS_bitplane(v); 00211 pic_param->reference_fields.value = 0; /* reset all bits */ 00212 pic_param->reference_fields.bits.reference_distance_flag = v->refdist_flag; 00213 pic_param->reference_fields.bits.reference_distance = 0; /* XXX: interlaced frame */ 00214 pic_param->reference_fields.bits.num_reference_pictures = 0; /* XXX: interlaced frame */ 00215 pic_param->reference_fields.bits.reference_field_pic_indicator = 0; /* XXX: interlaced frame */ 00216 pic_param->mv_fields.value = 0; /* reset all bits */ 00217 pic_param->mv_fields.bits.mv_mode = vc1_get_MVMODE(v); 00218 pic_param->mv_fields.bits.mv_mode2 = vc1_get_MVMODE2(v); 00219 pic_param->mv_fields.bits.mv_table = s->mv_table_index; 00220 pic_param->mv_fields.bits.two_mv_block_pattern_table = 0; /* XXX: interlaced frame */ 00221 pic_param->mv_fields.bits.four_mv_switch = 0; /* XXX: interlaced frame */ 00222 pic_param->mv_fields.bits.four_mv_block_pattern_table = 0; /* XXX: interlaced frame */ 00223 pic_param->mv_fields.bits.extended_mv_flag = v->extended_mv; 00224 pic_param->mv_fields.bits.extended_mv_range = v->mvrange; 00225 pic_param->mv_fields.bits.extended_dmv_flag = v->extended_dmv; 00226 pic_param->mv_fields.bits.extended_dmv_range = 0; /* XXX: interlaced frame */ 00227 pic_param->pic_quantizer_fields.value = 0; /* reset all bits */ 00228 pic_param->pic_quantizer_fields.bits.dquant = v->dquant; 00229 pic_param->pic_quantizer_fields.bits.quantizer = v->quantizer_mode; 00230 pic_param->pic_quantizer_fields.bits.half_qp = v->halfpq; 00231 pic_param->pic_quantizer_fields.bits.pic_quantizer_scale = v->pq; 00232 pic_param->pic_quantizer_fields.bits.pic_quantizer_type = v->pquantizer; 00233 pic_param->pic_quantizer_fields.bits.dq_frame = v->dquantfrm; 00234 pic_param->pic_quantizer_fields.bits.dq_profile = v->dqprofile; 00235 pic_param->pic_quantizer_fields.bits.dq_sb_edge = v->dqprofile == DQPROFILE_SINGLE_EDGE ? v->dqsbedge : 0; 00236 pic_param->pic_quantizer_fields.bits.dq_db_edge = v->dqprofile == DQPROFILE_DOUBLE_EDGES ? v->dqsbedge : 0; 00237 pic_param->pic_quantizer_fields.bits.dq_binary_level = v->dqbilevel; 00238 pic_param->pic_quantizer_fields.bits.alt_pic_quantizer = v->altpq; 00239 pic_param->transform_fields.value = 0; /* reset all bits */ 00240 pic_param->transform_fields.bits.variable_sized_transform_flag = v->vstransform; 00241 pic_param->transform_fields.bits.mb_level_transform_type_flag = v->ttmbf; 00242 pic_param->transform_fields.bits.frame_level_transform_type = v->ttfrm; 00243 pic_param->transform_fields.bits.transform_ac_codingset_idx1 = v->c_ac_table_index; 00244 pic_param->transform_fields.bits.transform_ac_codingset_idx2 = v->y_ac_table_index; 00245 pic_param->transform_fields.bits.intra_transform_dc_table = v->s.dc_table_index; 00246 00247 switch (s->pict_type) { 00248 case AV_PICTURE_TYPE_B: 00249 pic_param->backward_reference_picture = ff_vaapi_get_surface_id(&s->next_picture); 00250 // fall-through 00251 case AV_PICTURE_TYPE_P: 00252 pic_param->forward_reference_picture = ff_vaapi_get_surface_id(&s->last_picture); 00253 break; 00254 } 00255 00256 if (pic_param->bitplane_present.value) { 00257 uint8_t *bitplane; 00258 const uint8_t *ff_bp[3]; 00259 int x, y, n; 00260 00261 switch (s->pict_type) { 00262 case AV_PICTURE_TYPE_P: 00263 ff_bp[0] = pic_param->bitplane_present.flags.bp_direct_mb ? v->direct_mb_plane : NULL; 00264 ff_bp[1] = pic_param->bitplane_present.flags.bp_skip_mb ? s->mbskip_table : NULL; 00265 ff_bp[2] = pic_param->bitplane_present.flags.bp_mv_type_mb ? v->mv_type_mb_plane : NULL; 00266 break; 00267 case AV_PICTURE_TYPE_B: 00268 if (!v->bi_type) { 00269 ff_bp[0] = pic_param->bitplane_present.flags.bp_direct_mb ? v->direct_mb_plane : NULL; 00270 ff_bp[1] = pic_param->bitplane_present.flags.bp_skip_mb ? s->mbskip_table : NULL; 00271 ff_bp[2] = NULL; /* XXX: interlaced frame (FORWARD plane) */ 00272 break; 00273 } 00274 /* fall-through (BI-type) */ 00275 case AV_PICTURE_TYPE_I: 00276 ff_bp[0] = NULL; /* XXX: interlaced frame (FIELDTX plane) */ 00277 ff_bp[1] = pic_param->bitplane_present.flags.bp_ac_pred ? v->acpred_plane : NULL; 00278 ff_bp[2] = pic_param->bitplane_present.flags.bp_overflags ? v->over_flags_plane : NULL; 00279 break; 00280 default: 00281 ff_bp[0] = NULL; 00282 ff_bp[1] = NULL; 00283 ff_bp[2] = NULL; 00284 break; 00285 } 00286 00287 bitplane = ff_vaapi_alloc_bitplane(vactx, (s->mb_width * s->mb_height + 1) / 2); 00288 if (!bitplane) 00289 return -1; 00290 00291 n = 0; 00292 for (y = 0; y < s->mb_height; y++) 00293 for (x = 0; x < s->mb_width; x++, n++) 00294 vc1_pack_bitplanes(bitplane, n, ff_bp, x, y, s->mb_stride); 00295 if (n & 1) /* move last nibble to the high order */ 00296 bitplane[n/2] <<= 4; 00297 } 00298 return 0; 00299 } 00300 00301 static int vaapi_vc1_end_frame(AVCodecContext *avctx) 00302 { 00303 VC1Context * const v = avctx->priv_data; 00304 00305 return ff_vaapi_common_end_frame(&v->s); 00306 } 00307 00308 static int vaapi_vc1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size) 00309 { 00310 VC1Context * const v = avctx->priv_data; 00311 MpegEncContext * const s = &v->s; 00312 VASliceParameterBufferVC1 *slice_param; 00313 00314 av_dlog(avctx, "vaapi_vc1_decode_slice(): buffer %p, size %d\n", buffer, size); 00315 00316 /* Current bit buffer is beyond any marker for VC-1, so skip it */ 00317 if (avctx->codec_id == CODEC_ID_VC1 && IS_MARKER(AV_RB32(buffer))) { 00318 buffer += 4; 00319 size -= 4; 00320 } 00321 00322 /* Fill in VASliceParameterBufferVC1 */ 00323 slice_param = (VASliceParameterBufferVC1 *)ff_vaapi_alloc_slice(avctx->hwaccel_context, buffer, size); 00324 if (!slice_param) 00325 return -1; 00326 slice_param->macroblock_offset = get_bits_count(&s->gb); 00327 slice_param->slice_vertical_position = s->mb_y; 00328 return 0; 00329 } 00330 00331 #if CONFIG_WMV3_VAAPI_HWACCEL 00332 AVHWAccel ff_wmv3_vaapi_hwaccel = { 00333 .name = "wmv3_vaapi", 00334 .type = AVMEDIA_TYPE_VIDEO, 00335 .id = CODEC_ID_WMV3, 00336 .pix_fmt = PIX_FMT_VAAPI_VLD, 00337 .capabilities = 0, 00338 .start_frame = vaapi_vc1_start_frame, 00339 .end_frame = vaapi_vc1_end_frame, 00340 .decode_slice = vaapi_vc1_decode_slice, 00341 .priv_data_size = 0, 00342 }; 00343 #endif 00344 00345 AVHWAccel ff_vc1_vaapi_hwaccel = { 00346 .name = "vc1_vaapi", 00347 .type = AVMEDIA_TYPE_VIDEO, 00348 .id = CODEC_ID_VC1, 00349 .pix_fmt = PIX_FMT_VAAPI_VLD, 00350 .capabilities = 0, 00351 .start_frame = vaapi_vc1_start_frame, 00352 .end_frame = vaapi_vc1_end_frame, 00353 .decode_slice = vaapi_vc1_decode_slice, 00354 .priv_data_size = 0, 00355 };