diff options
Diffstat (limited to 'ffmpeg1/libavcodec/vp8.c')
| -rw-r--r-- | ffmpeg1/libavcodec/vp8.c | 2110 |
1 files changed, 0 insertions, 2110 deletions
diff --git a/ffmpeg1/libavcodec/vp8.c b/ffmpeg1/libavcodec/vp8.c deleted file mode 100644 index ac929d0..0000000 --- a/ffmpeg1/libavcodec/vp8.c +++ /dev/null @@ -1,2110 +0,0 @@ -/* - * VP8 compatible video decoder - * - * Copyright (C) 2010 David Conrad - * Copyright (C) 2010 Ronald S. Bultje - * Copyright (C) 2010 Jason Garrett-Glaser - * Copyright (C) 2012 Daniel Kang - * - * 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 2.1 of the License, or (at your option) any later version. - * - * 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 FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "libavutil/imgutils.h" -#include "avcodec.h" -#include "internal.h" -#include "vp8.h" -#include "vp8data.h" -#include "rectangle.h" -#include "thread.h" - -#if ARCH_ARM -# include "arm/vp8.h" -#endif - -static void free_buffers(VP8Context *s) -{ - int i; - if (s->thread_data) - for (i = 0; i < MAX_THREADS; i++) { - av_freep(&s->thread_data[i].filter_strength); - av_freep(&s->thread_data[i].edge_emu_buffer); - } - av_freep(&s->thread_data); - av_freep(&s->macroblocks_base); - av_freep(&s->intra4x4_pred_mode_top); - av_freep(&s->top_nnz); - av_freep(&s->top_border); - - s->macroblocks = NULL; -} - -static int vp8_alloc_frame(VP8Context *s, VP8Frame *f, int ref) -{ - int ret; - if ((ret = ff_thread_get_buffer(s->avctx, &f->tf, - ref ? AV_GET_BUFFER_FLAG_REF : 0)) < 0) - return ret; - if (!(f->seg_map = av_buffer_allocz(s->mb_width * s->mb_height))) { - ff_thread_release_buffer(s->avctx, &f->tf); - return AVERROR(ENOMEM); - } - return 0; -} - -static void vp8_release_frame(VP8Context *s, VP8Frame *f) -{ - av_buffer_unref(&f->seg_map); - ff_thread_release_buffer(s->avctx, &f->tf); -} - -static int vp8_ref_frame(VP8Context *s, VP8Frame *dst, VP8Frame *src) -{ - int ret; - - vp8_release_frame(s, dst); - - if ((ret = ff_thread_ref_frame(&dst->tf, &src->tf)) < 0) - return ret; - if (src->seg_map && - !(dst->seg_map = av_buffer_ref(src->seg_map))) { - vp8_release_frame(s, dst); - return AVERROR(ENOMEM); - } - - return 0; -} - - -static void vp8_decode_flush_impl(AVCodecContext *avctx, int free_mem) -{ - VP8Context *s = avctx->priv_data; - int i; - - for (i = 0; i < FF_ARRAY_ELEMS(s->frames); i++) - vp8_release_frame(s, &s->frames[i]); - memset(s->framep, 0, sizeof(s->framep)); - - if (free_mem) - free_buffers(s); -} - -static void vp8_decode_flush(AVCodecContext *avctx) -{ - vp8_decode_flush_impl(avctx, 0); -} - -static int update_dimensions(VP8Context *s, int width, int height) -{ - AVCodecContext *avctx = s->avctx; - int i; - - if (width != s->avctx->width || ((width+15)/16 != s->mb_width || (height+15)/16 != s->mb_height) && s->macroblocks_base || - height != s->avctx->height) { - if (av_image_check_size(width, height, 0, s->avctx)) - return AVERROR_INVALIDDATA; - - vp8_decode_flush_impl(s->avctx, 1); - - avcodec_set_dimensions(s->avctx, width, height); - } - - s->mb_width = (s->avctx->coded_width +15) / 16; - s->mb_height = (s->avctx->coded_height+15) / 16; - - s->mb_layout = (avctx->active_thread_type == FF_THREAD_SLICE) && (FFMIN(s->num_coeff_partitions, avctx->thread_count) > 1); - if (!s->mb_layout) { // Frame threading and one thread - s->macroblocks_base = av_mallocz((s->mb_width+s->mb_height*2+1)*sizeof(*s->macroblocks)); - s->intra4x4_pred_mode_top = av_mallocz(s->mb_width*4); - } - else // Sliced threading - s->macroblocks_base = av_mallocz((s->mb_width+2)*(s->mb_height+2)*sizeof(*s->macroblocks)); - s->top_nnz = av_mallocz(s->mb_width*sizeof(*s->top_nnz)); - s->top_border = av_mallocz((s->mb_width+1)*sizeof(*s->top_border)); - s->thread_data = av_mallocz(MAX_THREADS*sizeof(VP8ThreadData)); - - for (i = 0; i < MAX_THREADS; i++) { - s->thread_data[i].filter_strength = av_mallocz(s->mb_width*sizeof(*s->thread_data[0].filter_strength)); -#if HAVE_THREADS - pthread_mutex_init(&s->thread_data[i].lock, NULL); - pthread_cond_init(&s->thread_data[i].cond, NULL); -#endif - } - - if (!s->macroblocks_base || !s->top_nnz || !s->top_border || - (!s->intra4x4_pred_mode_top && !s->mb_layout)) - return AVERROR(ENOMEM); - - s->macroblocks = s->macroblocks_base + 1; - - return 0; -} - -static void parse_segment_info(VP8Context *s) -{ - VP56RangeCoder *c = &s->c; - int i; - - s->segmentation.update_map = vp8_rac_get(c); - - if (vp8_rac_get(c)) { // update segment feature data - s->segmentation.absolute_vals = vp8_rac_get(c); - - for (i = 0; i < 4; i++) - s->segmentation.base_quant[i] = vp8_rac_get_sint(c, 7); - - for (i = 0; i < 4; i++) - s->segmentation.filter_level[i] = vp8_rac_get_sint(c, 6); - } - if (s->segmentation.update_map) - for (i = 0; i < 3; i++) - s->prob->segmentid[i] = vp8_rac_get(c) ? vp8_rac_get_uint(c, 8) : 255; -} - -static void update_lf_deltas(VP8Context *s) -{ - VP56RangeCoder *c = &s->c; - int i; - - for (i = 0; i < 4; i++) { - if (vp8_rac_get(c)) { - s->lf_delta.ref[i] = vp8_rac_get_uint(c, 6); - - if (vp8_rac_get(c)) - s->lf_delta.ref[i] = -s->lf_delta.ref[i]; - } - } - - for (i = MODE_I4x4; i <= VP8_MVMODE_SPLIT; i++) { - if (vp8_rac_get(c)) { - s->lf_delta.mode[i] = vp8_rac_get_uint(c, 6); - - if (vp8_rac_get(c)) - s->lf_delta.mode[i] = -s->lf_delta.mode[i]; - } - } -} - -static int setup_partitions(VP8Context *s, const uint8_t *buf, int buf_size) -{ - const uint8_t *sizes = buf; - int i; - - s->num_coeff_partitions = 1 << vp8_rac_get_uint(&s->c, 2); - - buf += 3*(s->num_coeff_partitions-1); - buf_size -= 3*(s->num_coeff_partitions-1); - if (buf_size < 0) - return -1; - - for (i = 0; i < s->num_coeff_partitions-1; i++) { - int size = AV_RL24(sizes + 3*i); - if (buf_size - size < 0) - return -1; - - ff_vp56_init_range_decoder(&s->coeff_partition[i], buf, size); - buf += size; - buf_size -= size; - } - ff_vp56_init_range_decoder(&s->coeff_partition[i], buf, buf_size); - - return 0; -} - -static void get_quants(VP8Context *s) -{ - VP56RangeCoder *c = &s->c; - int i, base_qi; - - int yac_qi = vp8_rac_get_uint(c, 7); - int ydc_delta = vp8_rac_get_sint(c, 4); - int y2dc_delta = vp8_rac_get_sint(c, 4); - int y2ac_delta = vp8_rac_get_sint(c, 4); - int uvdc_delta = vp8_rac_get_sint(c, 4); - int uvac_delta = vp8_rac_get_sint(c, 4); - - for (i = 0; i < 4; i++) { - if (s->segmentation.enabled) { - base_qi = s->segmentation.base_quant[i]; - if (!s->segmentation.absolute_vals) - base_qi += yac_qi; - } else - base_qi = yac_qi; - - s->qmat[i].luma_qmul[0] = vp8_dc_qlookup[av_clip_uintp2(base_qi + ydc_delta , 7)]; - s->qmat[i].luma_qmul[1] = vp8_ac_qlookup[av_clip_uintp2(base_qi , 7)]; - s->qmat[i].luma_dc_qmul[0] = 2 * vp8_dc_qlookup[av_clip_uintp2(base_qi + y2dc_delta, 7)]; - /* 101581>>16 is equivalent to 155/100 */ - s->qmat[i].luma_dc_qmul[1] = (101581 * vp8_ac_qlookup[av_clip_uintp2(base_qi + y2ac_delta, 7)]) >> 16; - s->qmat[i].chroma_qmul[0] = vp8_dc_qlookup[av_clip_uintp2(base_qi + uvdc_delta, 7)]; - s->qmat[i].chroma_qmul[1] = vp8_ac_qlookup[av_clip_uintp2(base_qi + uvac_delta, 7)]; - - s->qmat[i].luma_dc_qmul[1] = FFMAX(s->qmat[i].luma_dc_qmul[1], 8); - s->qmat[i].chroma_qmul[0] = FFMIN(s->qmat[i].chroma_qmul[0], 132); - } -} - -/** - * Determine which buffers golden and altref should be updated with after this frame. - * The spec isn't clear here, so I'm going by my understanding of what libvpx does - * - * Intra frames update all 3 references - * Inter frames update VP56_FRAME_PREVIOUS if the update_last flag is set - * If the update (golden|altref) flag is set, it's updated with the current frame - * if update_last is set, and VP56_FRAME_PREVIOUS otherwise. - * If the flag is not set, the number read means: - * 0: no update - * 1: VP56_FRAME_PREVIOUS - * 2: update golden with altref, or update altref with golden - */ -static VP56Frame ref_to_update(VP8Context *s, int update, VP56Frame ref) -{ - VP56RangeCoder *c = &s->c; - - if (update) - return VP56_FRAME_CURRENT; - - switch (vp8_rac_get_uint(c, 2)) { - case 1: - return VP56_FRAME_PREVIOUS; - case 2: - return (ref == VP56_FRAME_GOLDEN) ? VP56_FRAME_GOLDEN2 : VP56_FRAME_GOLDEN; - } - return VP56_FRAME_NONE; -} - -static void update_refs(VP8Context *s) -{ - VP56RangeCoder *c = &s->c; - - int update_golden = vp8_rac_get(c); - int update_altref = vp8_rac_get(c); - - s->update_golden = ref_to_update(s, update_golden, VP56_FRAME_GOLDEN); - s->update_altref = ref_to_update(s, update_altref, VP56_FRAME_GOLDEN2); -} - -static int decode_frame_header(VP8Context *s, const uint8_t *buf, int buf_size) -{ - VP56RangeCoder *c = &s->c; - int header_size, hscale, vscale, i, j, k, l, m, ret; - int width = s->avctx->width; - int height = s->avctx->height; - - s->keyframe = !(buf[0] & 1); - s->profile = (buf[0]>>1) & 7; - s->invisible = !(buf[0] & 0x10); - header_size = AV_RL24(buf) >> 5; - buf += 3; - buf_size -= 3; - - if (s->profile > 3) - av_log(s->avctx, AV_LOG_WARNING, "Unknown profile %d\n", s->profile); - - if (!s->profile) - memcpy(s->put_pixels_tab, s->vp8dsp.put_vp8_epel_pixels_tab, sizeof(s->put_pixels_tab)); - else // profile 1-3 use bilinear, 4+ aren't defined so whatever - memcpy(s->put_pixels_tab, s->vp8dsp.put_vp8_bilinear_pixels_tab, sizeof(s->put_pixels_tab)); - - if (header_size > buf_size - 7*s->keyframe) { - av_log(s->avctx, AV_LOG_ERROR, "Header size larger than data provided\n"); - return AVERROR_INVALIDDATA; - } - - if (s->keyframe) { - if (AV_RL24(buf) != 0x2a019d) { - av_log(s->avctx, AV_LOG_ERROR, "Invalid start code 0x%x\n", AV_RL24(buf)); - return AVERROR_INVALIDDATA; - } - width = AV_RL16(buf+3) & 0x3fff; - height = AV_RL16(buf+5) & 0x3fff; - hscale = buf[4] >> 6; - vscale = buf[6] >> 6; - buf += 7; - buf_size -= 7; - - if (hscale || vscale) - avpriv_request_sample(s->avctx, "Upscaling"); - - s->update_golden = s->update_altref = VP56_FRAME_CURRENT; - for (i = 0; i < 4; i++) - for (j = 0; j < 16; j++) - memcpy(s->prob->token[i][j], vp8_token_default_probs[i][vp8_coeff_band[j]], - sizeof(s->prob->token[i][j])); - memcpy(s->prob->pred16x16, vp8_pred16x16_prob_inter, sizeof(s->prob->pred16x16)); - memcpy(s->prob->pred8x8c , vp8_pred8x8c_prob_inter , sizeof(s->prob->pred8x8c)); - memcpy(s->prob->mvc , vp8_mv_default_prob , sizeof(s->prob->mvc)); - memset(&s->segmentation, 0, sizeof(s->segmentation)); - memset(&s->lf_delta, 0, sizeof(s->lf_delta)); - } - - ff_vp56_init_range_decoder(c, buf, header_size); - buf += header_size; - buf_size -= header_size; - - if (s->keyframe) { - if (vp8_rac_get(c)) - av_log(s->avctx, AV_LOG_WARNING, "Unspecified colorspace\n"); - vp8_rac_get(c); // whether we can skip clamping in dsp functions - } - - if ((s->segmentation.enabled = vp8_rac_get(c))) - parse_segment_info(s); - else - s->segmentation.update_map = 0; // FIXME: move this to some init function? - - s->filter.simple = vp8_rac_get(c); - s->filter.level = vp8_rac_get_uint(c, 6); - s->filter.sharpness = vp8_rac_get_uint(c, 3); - - if ((s->lf_delta.enabled = vp8_rac_get(c))) - if (vp8_rac_get(c)) - update_lf_deltas(s); - - if (setup_partitions(s, buf, buf_size)) { - av_log(s->avctx, AV_LOG_ERROR, "Invalid partitions\n"); - return AVERROR_INVALIDDATA; - } - - if (!s->macroblocks_base || /* first frame */ - width != s->avctx->width || height != s->avctx->height || (width+15)/16 != s->mb_width || (height+15)/16 != s->mb_height) { - if ((ret = update_dimensions(s, width, height)) < 0) - return ret; - } - - get_quants(s); - - if (!s->keyframe) { - update_refs(s); - s->sign_bias[VP56_FRAME_GOLDEN] = vp8_rac_get(c); - s->sign_bias[VP56_FRAME_GOLDEN2 /* altref */] = vp8_rac_get(c); - } - - // if we aren't saving this frame's probabilities for future frames, - // make a copy of the current probabilities - if (!(s->update_probabilities = vp8_rac_get(c))) - s->prob[1] = s->prob[0]; - - s->update_last = s->keyframe || vp8_rac_get(c); - - for (i = 0; i < 4; i++) - for (j = 0; j < 8; j++) - for (k = 0; k < 3; k++) - for (l = 0; l < NUM_DCT_TOKENS-1; l++) - if (vp56_rac_get_prob_branchy(c, vp8_token_update_probs[i][j][k][l])) { - int prob = vp8_rac_get_uint(c, 8); - for (m = 0; vp8_coeff_band_indexes[j][m] >= 0; m++) - s->prob->token[i][vp8_coeff_band_indexes[j][m]][k][l] = prob; - } - - if ((s->mbskip_enabled = vp8_rac_get(c))) - s->prob->mbskip = vp8_rac_get_uint(c, 8); - - if (!s->keyframe) { - s->prob->intra = vp8_rac_get_uint(c, 8); - s->prob->last = vp8_rac_get_uint(c, 8); - s->prob->golden = vp8_rac_get_uint(c, 8); - - if (vp8_rac_get(c)) - for (i = 0; i < 4; i++) - s->prob->pred16x16[i] = vp8_rac_get_uint(c, 8); - if (vp8_rac_get(c)) - for (i = 0; i < 3; i++) - s->prob->pred8x8c[i] = vp8_rac_get_uint(c, 8); - - // 17.2 MV probability update - for (i = 0; i < 2; i++) - for (j = 0; j < 19; j++) - if (vp56_rac_get_prob_branchy(c, vp8_mv_update_prob[i][j])) - s->prob->mvc[i][j] = vp8_rac_get_nn(c); - } - - return 0; -} - -static av_always_inline void clamp_mv(VP8Context *s, VP56mv *dst, const VP56mv *src) -{ - dst->x = av_clip(src->x, s->mv_min.x, s->mv_max.x); - dst->y = av_clip(src->y, s->mv_min.y, s->mv_max.y); -} - -/** - * Motion vector coding, 17.1. - */ -static int read_mv_component(VP56RangeCoder *c, const uint8_t *p) -{ - int bit, x = 0; - - if (vp56_rac_get_prob_branchy(c, p[0])) { - int i; - - for (i = 0; i < 3; i++) - x += vp56_rac_get_prob(c, p[9 + i]) << i; - for (i = 9; i > 3; i--) - x += vp56_rac_get_prob(c, p[9 + i]) << i; - if (!(x & 0xFFF0) || vp56_rac_get_prob(c, p[12])) - x += 8; - } else { - // small_mvtree - const uint8_t *ps = p+2; - bit = vp56_rac_get_prob(c, *ps); - ps += 1 + 3*bit; - x += 4*bit; - bit = vp56_rac_get_prob(c, *ps); - ps += 1 + bit; - x += 2*bit; - x += vp56_rac_get_prob(c, *ps); - } - - return (x && vp56_rac_get_prob(c, p[1])) ? -x : x; -} - -static av_always_inline -const uint8_t *get_submv_prob(uint32_t left, uint32_t top) -{ - if (left == top) - return vp8_submv_prob[4-!!left]; - if (!top) - return vp8_submv_prob[2]; - return vp8_submv_prob[1-!!left]; -} - -/** - * Split motion vector prediction, 16.4. - * @returns the number of motion vectors parsed (2, 4 or 16) - */ -static av_always_inline -int decode_splitmvs(VP8Context *s, VP56RangeCoder *c, VP8Macroblock *mb, int layout) -{ - int part_idx; - int n, num; - VP8Macroblock *top_mb; - VP8Macroblock *left_mb = &mb[-1]; - const uint8_t *mbsplits_left = vp8_mbsplits[left_mb->partitioning], - *mbsplits_top, - *mbsplits_cur, *firstidx; - VP56mv *top_mv; - VP56mv *left_mv = left_mb->bmv; - VP56mv *cur_mv = mb->bmv; - - if (!layout) // layout is inlined, s->mb_layout is not - top_mb = &mb[2]; - else - top_mb = &mb[-s->mb_width-1]; - mbsplits_top = vp8_mbsplits[top_mb->partitioning]; - top_mv = top_mb->bmv; - - if (vp56_rac_get_prob_branchy(c, vp8_mbsplit_prob[0])) { - if (vp56_rac_get_prob_branchy(c, vp8_mbsplit_prob[1])) { - part_idx = VP8_SPLITMVMODE_16x8 + vp56_rac_get_prob(c, vp8_mbsplit_prob[2]); - } else { - part_idx = VP8_SPLITMVMODE_8x8; - } - } else { - part_idx = VP8_SPLITMVMODE_4x4; - } - - num = vp8_mbsplit_count[part_idx]; - mbsplits_cur = vp8_mbsplits[part_idx], - firstidx = vp8_mbfirstidx[part_idx]; - mb->partitioning = part_idx; - - for (n = 0; n < num; n++) { - int k = firstidx[n]; - uint32_t left, above; - const uint8_t *submv_prob; - - if (!(k & 3)) - left = AV_RN32A(&left_mv[mbsplits_left[k + 3]]); - else - left = AV_RN32A(&cur_mv[mbsplits_cur[k - 1]]); - if (k <= 3) - above = AV_RN32A(&top_mv[mbsplits_top[k + 12]]); - else - above = AV_RN32A(&cur_mv[mbsplits_cur[k - 4]]); - - submv_prob = get_submv_prob(left, above); - - if (vp56_rac_get_prob_branchy(c, submv_prob[0])) { - if (vp56_rac_get_prob_branchy(c, submv_prob[1])) { - if (vp56_rac_get_prob_branchy(c, submv_prob[2])) { - mb->bmv[n].y = mb->mv.y + read_mv_component(c, s->prob->mvc[0]); - mb->bmv[n].x = mb->mv.x + read_mv_component(c, s->prob->mvc[1]); - } else { - AV_ZERO32(&mb->bmv[n]); - } - } else { - AV_WN32A(&mb->bmv[n], above); - } - } else { - AV_WN32A(&mb->bmv[n], left); - } - } - - return num; -} - -static av_always_inline -void decode_mvs(VP8Context *s, VP8Macroblock *mb, int mb_x, int mb_y, int layout) -{ - VP8Macroblock *mb_edge[3] = { 0 /* top */, - mb - 1 /* left */, - 0 /* top-left */ }; - enum { CNT_ZERO, CNT_NEAREST, CNT_NEAR, CNT_SPLITMV }; - enum { VP8_EDGE_TOP, VP8_EDGE_LEFT, VP8_EDGE_TOPLEFT }; - int idx = CNT_ZERO; - int cur_sign_bias = s->sign_bias[mb->ref_frame]; - int8_t *sign_bias = s->sign_bias; - VP56mv near_mv[4]; - uint8_t cnt[4] = { 0 }; - VP56RangeCoder *c = &s->c; - - if (!layout) { // layout is inlined (s->mb_layout is not) - mb_edge[0] = mb + 2; - mb_edge[2] = mb + 1; - } - else { - mb_edge[0] = mb - s->mb_width-1; - mb_edge[2] = mb - s->mb_width-2; - } - - AV_ZERO32(&near_mv[0]); - AV_ZERO32(&near_mv[1]); - AV_ZERO32(&near_mv[2]); - - /* Process MB on top, left and top-left */ - #define MV_EDGE_CHECK(n)\ - {\ - VP8Macroblock *edge = mb_edge[n];\ - int edge_ref = edge->ref_frame;\ - if (edge_ref != VP56_FRAME_CURRENT) {\ - uint32_t mv = AV_RN32A(&edge->mv);\ - if (mv) {\ - if (cur_sign_bias != sign_bias[edge_ref]) {\ - /* SWAR negate of the values in mv. */\ - mv = ~mv;\ - mv = ((mv&0x7fff7fff) + 0x00010001) ^ (mv&0x80008000);\ - }\ - if (!n || mv != AV_RN32A(&near_mv[idx]))\ - AV_WN32A(&near_mv[++idx], mv);\ - cnt[idx] += 1 + (n != 2);\ - } else\ - cnt[CNT_ZERO] += 1 + (n != 2);\ - }\ - } - - MV_EDGE_CHECK(0) - MV_EDGE_CHECK(1) - MV_EDGE_CHECK(2) - - mb->partitioning = VP8_SPLITMVMODE_NONE; - if (vp56_rac_get_prob_branchy(c, vp8_mode_contexts[cnt[CNT_ZERO]][0])) { - mb->mode = VP8_MVMODE_MV; - - /* If we have three distinct MVs, merge first and last if they're the same */ - if (cnt[CNT_SPLITMV] && AV_RN32A(&near_mv[1 + VP8_EDGE_TOP]) == AV_RN32A(&near_mv[1 + VP8_EDGE_TOPLEFT])) - cnt[CNT_NEAREST] += 1; - - /* Swap near and nearest if necessary */ - if (cnt[CNT_NEAR] > cnt[CNT_NEAREST]) { - FFSWAP(uint8_t, cnt[CNT_NEAREST], cnt[CNT_NEAR]); - FFSWAP( VP56mv, near_mv[CNT_NEAREST], near_mv[CNT_NEAR]); - } - - if (vp56_rac_get_prob_branchy(c, vp8_mode_contexts[cnt[CNT_NEAREST]][1])) { - if (vp56_rac_get_prob_branchy(c, vp8_mode_contexts[cnt[CNT_NEAR]][2])) { - - /* Choose the best mv out of 0,0 and the nearest mv */ - clamp_mv(s, &mb->mv, &near_mv[CNT_ZERO + (cnt[CNT_NEAREST] >= cnt[CNT_ZERO])]); - cnt[CNT_SPLITMV] = ((mb_edge[VP8_EDGE_LEFT]->mode == VP8_MVMODE_SPLIT) + - (mb_edge[VP8_EDGE_TOP]->mode == VP8_MVMODE_SPLIT)) * 2 + - (mb_edge[VP8_EDGE_TOPLEFT]->mode == VP8_MVMODE_SPLIT); - - if (vp56_rac_get_prob_branchy(c, vp8_mode_contexts[cnt[CNT_SPLITMV]][3])) { - mb->mode = VP8_MVMODE_SPLIT; - mb->mv = mb->bmv[decode_splitmvs(s, c, mb, layout) - 1]; - } else { - mb->mv.y += read_mv_component(c, s->prob->mvc[0]); - mb->mv.x += read_mv_component(c, s->prob->mvc[1]); - mb->bmv[0] = mb->mv; - } - } else { - clamp_mv(s, &mb->mv, &near_mv[CNT_NEAR]); - mb->bmv[0] = mb->mv; - } - } else { - clamp_mv(s, &mb->mv, &near_mv[CNT_NEAREST]); - mb->bmv[0] = mb->mv; - } - } else { - mb->mode = VP8_MVMODE_ZERO; - AV_ZERO32(&mb->mv); - mb->bmv[0] = mb->mv; - } -} - -static av_always_inline -void decode_intra4x4_modes(VP8Context *s, VP56RangeCoder *c, VP8Macroblock *mb, - int mb_x, int keyframe, int layout) -{ - uint8_t *intra4x4 = mb->intra4x4_pred_mode_mb; - - if (layout == 1) { - VP8Macroblock *mb_top = mb - s->mb_width - 1; - memcpy(mb->intra4x4_pred_mode_top, mb_top->intra4x4_pred_mode_top, 4); - } - if (keyframe) { - int x, y; - uint8_t* top; - uint8_t* const left = s->intra4x4_pred_mode_left; - if (layout == 1) - top = mb->intra4x4_pred_mode_top; - else - top = s->intra4x4_pred_mode_top + 4 * mb_x; - for (y = 0; y < 4; y++) { - for (x = 0; x < 4; x++) { - const uint8_t *ctx; - ctx = vp8_pred4x4_prob_intra[top[x]][left[y]]; - *intra4x4 = vp8_rac_get_tree(c, vp8_pred4x4_tree, ctx); - left[y] = top[x] = *intra4x4; - intra4x4++; - } - } - } else { - int i; - for (i = 0; i < 16; i++) - intra4x4[i] = vp8_rac_get_tree(c, vp8_pred4x4_tree, vp8_pred4x4_prob_inter); - } -} - -static av_always_inline -void decode_mb_mode(VP8Context *s, VP8Macroblock *mb, int mb_x, int mb_y, - uint8_t *segment, uint8_t *ref, int layout) -{ - VP56RangeCoder *c = &s->c; - - if (s->segmentation.update_map) { - int bit = vp56_rac_get_prob(c, s->prob->segmentid[0]); - *segment = vp56_rac_get_prob(c, s->prob->segmentid[1+bit]) + 2*bit; - } else if (s->segmentation.enabled) - *segment = ref ? *ref : *segment; - mb->segment = *segment; - - mb->skip = s->mbskip_enabled ? vp56_rac_get_prob(c, s->prob->mbskip) : 0; - - if (s->keyframe) { - mb->mode = vp8_rac_get_tree(c, vp8_pred16x16_tree_intra, vp8_pred16x16_prob_intra); - - if (mb->mode == MODE_I4x4) { - decode_intra4x4_modes(s, c, mb, mb_x, 1, layout); - } else { - const uint32_t modes = vp8_pred4x4_mode[mb->mode] * 0x01010101u; - if (s->mb_layout == 1) - AV_WN32A(mb->intra4x4_pred_mode_top, modes); - else - AV_WN32A(s->intra4x4_pred_mode_top + 4 * mb_x, modes); - AV_WN32A( s->intra4x4_pred_mode_left, modes); - } - - mb->chroma_pred_mode = vp8_rac_get_tree(c, vp8_pred8x8c_tree, vp8_pred8x8c_prob_intra); - mb->ref_frame = VP56_FRAME_CURRENT; - } else if (vp56_rac_get_prob_branchy(c, s->prob->intra)) { - // inter MB, 16.2 - if (vp56_rac_get_prob_branchy(c, s->prob->last)) - mb->ref_frame = vp56_rac_get_prob(c, s->prob->golden) ? - VP56_FRAME_GOLDEN2 /* altref */ : VP56_FRAME_GOLDEN; - else - mb->ref_frame = VP56_FRAME_PREVIOUS; - s->ref_count[mb->ref_frame-1]++; - - // motion vectors, 16.3 - decode_mvs(s, mb, mb_x, mb_y, layout); - } else { - // intra MB, 16.1 - mb->mode = vp8_rac_get_tree(c, vp8_pred16x16_tree_inter, s->prob->pred16x16); - - if (mb->mode == MODE_I4x4) - decode_intra4x4_modes(s, c, mb, mb_x, 0, layout); - - mb->chroma_pred_mode = vp8_rac_get_tree(c, vp8_pred8x8c_tree, s->prob->pred8x8c); - mb->ref_frame = VP56_FRAME_CURRENT; - mb->partitioning = VP8_SPLITMVMODE_NONE; - AV_ZERO32(&mb->bmv[0]); - } -} - -#ifndef decode_block_coeffs_internal -/** - * @param r arithmetic bitstream reader context - * @param block destination for block coefficients - * @param probs probabilities to use when reading trees from the bitstream - * @param i initial coeff index, 0 unless a separate DC block is coded - * @param qmul array holding the dc/ac dequant factor at position 0/1 - * @return 0 if no coeffs were decoded - * otherwise, the index of the last coeff decoded plus one - */ -static int decode_block_coeffs_internal(VP56RangeCoder *r, int16_t block[16], - uint8_t probs[16][3][NUM_DCT_TOKENS-1], - int i, uint8_t *token_prob, int16_t qmul[2]) -{ - VP56RangeCoder c = *r; - goto skip_eob; - do { - int coeff; - if (!vp56_rac_get_prob_branchy(&c, token_prob[0])) // DCT_EOB - break; - -skip_eob: - if (!vp56_rac_get_prob_branchy(&c, token_prob[1])) { // DCT_0 - if (++i == 16) - break; // invalid input; blocks should end with EOB - token_prob = probs[i][0]; - goto skip_eob; - } - - if (!vp56_rac_get_prob_branchy(&c, token_prob[2])) { // DCT_1 - coeff = 1; - token_prob = probs[i+1][1]; - } else { - if (!vp56_rac_get_prob_branchy(&c, token_prob[3])) { // DCT 2,3,4 - coeff = vp56_rac_get_prob_branchy(&c, token_prob[4]); - if (coeff) - coeff += vp56_rac_get_prob(&c, token_prob[5]); - coeff += 2; - } else { - // DCT_CAT* - if (!vp56_rac_get_prob_branchy(&c, token_prob[6])) { - if (!vp56_rac_get_prob_branchy(&c, token_prob[7])) { // DCT_CAT1 - coeff = 5 + vp56_rac_get_prob(&c, vp8_dct_cat1_prob[0]); - } else { // DCT_CAT2 - coeff = 7; - coeff += vp56_rac_get_prob(&c, vp8_dct_cat2_prob[0]) << 1; - coeff += vp56_rac_get_prob(&c, vp8_dct_cat2_prob[1]); - } - } else { // DCT_CAT3 and up - int a = vp56_rac_get_prob(&c, token_prob[8]); - int b = vp56_rac_get_prob(&c, token_prob[9+a]); - int cat = (a<<1) + b; - coeff = 3 + (8<<cat); - coeff += vp8_rac_get_coeff(&c, ff_vp8_dct_cat_prob[cat]); - } - } - token_prob = probs[i+1][2]; - } - block[zigzag_scan[i]] = (vp8_rac_get(&c) ? -coeff : coeff) * qmul[!!i]; - } while (++i < 16); - - *r = c; - return i; -} -#endif - -/** - * @param c arithmetic bitstream reader context - * @param block destination for block coefficients - * @param probs probabilities to use when reading trees from the bitstream - * @param i initial coeff index, 0 unless a separate DC block is coded - * @param zero_nhood the initial prediction context for number of surrounding - * all-zero blocks (only left/top, so 0-2) - * @param qmul array holding the dc/ac dequant factor at position 0/1 - * @return 0 if no coeffs were decoded - * otherwise, the index of the last coeff decoded plus one - */ -static av_always_inline -int decode_block_coeffs(VP56RangeCoder *c, int16_t block[16], - uint8_t probs[16][3][NUM_DCT_TOKENS-1], - int i, int zero_nhood, int16_t qmul[2]) -{ - uint8_t *token_prob = probs[i][zero_nhood]; - if (!vp56_rac_get_prob_branchy(c, token_prob[0])) // DCT_EOB - return 0; - return decode_block_coeffs_internal(c, block, probs, i, token_prob, qmul); -} - -static av_always_inline -void decode_mb_coeffs(VP8Context *s, VP8ThreadData *td, VP56RangeCoder *c, VP8Macroblock *mb, - uint8_t t_nnz[9], uint8_t l_nnz[9]) -{ - int i, x, y, luma_start = 0, luma_ctx = 3; - int nnz_pred, nnz, nnz_total = 0; - int segment = mb->segment; - int block_dc = 0; - - if (mb->mode != MODE_I4x4 && mb->mode != VP8_MVMODE_SPLIT) { - nnz_pred = t_nnz[8] + l_nnz[8]; - - // decode DC values and do hadamard - nnz = decode_block_coeffs(c, td->block_dc, s->prob->token[1], 0, nnz_pred, - s->qmat[segment].luma_dc_qmul); - l_nnz[8] = t_nnz[8] = !!nnz; - if (nnz) { - nnz_total += nnz; - block_dc = 1; - if (nnz == 1) - s->vp8dsp.vp8_luma_dc_wht_dc(td->block, td->block_dc); - else - s->vp8dsp.vp8_luma_dc_wht(td->block, td->block_dc); - } - luma_start = 1; - luma_ctx = 0; - } - - // luma blocks - for (y = 0; y < 4; y++) - for (x = 0; x < 4; x++) { - nnz_pred = l_nnz[y] + t_nnz[x]; - nnz = decode_block_coeffs(c, td->block[y][x], s->prob->token[luma_ctx], luma_start, - nnz_pred, s->qmat[segment].luma_qmul); - // nnz+block_dc may be one more than the actual last index, but we don't care - td->non_zero_count_cache[y][x] = nnz + block_dc; - t_nnz[x] = l_nnz[y] = !!nnz; - nnz_total += nnz; - } - - // chroma blocks - // TODO: what to do about dimensions? 2nd dim for luma is x, - // but for chroma it's (y<<1)|x - for (i = 4; i < 6; i++) - for (y = 0; y < 2; y++) - for (x = 0; x < 2; x++) { - nnz_pred = l_nnz[i+2*y] + t_nnz[i+2*x]; - nnz = decode_block_coeffs(c, td->block[i][(y<<1)+x], s->prob->token[2], 0, - nnz_pred, s->qmat[segment].chroma_qmul); - td->non_zero_count_cache[i][(y<<1)+x] = nnz; - t_nnz[i+2*x] = l_nnz[i+2*y] = !!nnz; - nnz_total += nnz; - } - - // if there were no coded coeffs despite the macroblock not being marked skip, - // we MUST not do the inner loop filter and should not do IDCT - // Since skip isn't used for bitstream prediction, just manually set it. - if (!nnz_total) - mb->skip = 1; -} - -static av_always_inline -void backup_mb_border(uint8_t *top_border, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, - int linesize, int uvlinesize, int simple) -{ - AV_COPY128(top_border, src_y + 15*linesize); - if (!simple) { - AV_COPY64(top_border+16, src_cb + 7*uvlinesize); - AV_COPY64(top_border+24, src_cr + 7*uvlinesize); - } -} - -static av_always_inline -void xchg_mb_border(uint8_t *top_border, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, - int linesize, int uvlinesize, int mb_x, int mb_y, int mb_width, - int simple, int xchg) -{ - uint8_t *top_border_m1 = top_border-32; // for TL prediction - src_y -= linesize; - src_cb -= uvlinesize; - src_cr -= uvlinesize; - -#define XCHG(a,b,xchg) do { \ - if (xchg) AV_SWAP64(b,a); \ - else AV_COPY64(b,a); \ - } while (0) - - XCHG(top_border_m1+8, src_y-8, xchg); - XCHG(top_border, src_y, xchg); - XCHG(top_border+8, src_y+8, 1); - if (mb_x < mb_width-1) - XCHG(top_border+32, src_y+16, 1); - - // only copy chroma for normal loop filter - // or to initialize the top row to 127 - if (!simple || !mb_y) { - XCHG(top_border_m1+16, src_cb-8, xchg); - XCHG(top_border_m1+24, src_cr-8, xchg); - XCHG(top_border+16, src_cb, 1); - XCHG(top_border+24, src_cr, 1); - } -} - -static av_always_inline -int check_dc_pred8x8_mode(int mode, int mb_x, int mb_y) -{ - if (!mb_x) { - return mb_y ? TOP_DC_PRED8x8 : DC_128_PRED8x8; - } else { - return mb_y ? mode : LEFT_DC_PRED8x8; - } -} - -static av_always_inline -int check_tm_pred8x8_mode(int mode, int mb_x, int mb_y) -{ - if (!mb_x) { - return mb_y ? VERT_PRED8x8 : DC_129_PRED8x8; - } else { - return mb_y ? mode : HOR_PRED8x8; - } -} - -static av_always_inline -int check_intra_pred8x8_mode(int mode, int mb_x, int mb_y) -{ - if (mode == DC_PRED8x8) { - return check_dc_pred8x8_mode(mode, mb_x, mb_y); - } else { - return mode; - } -} - -static av_always_inline -int check_intra_pred8x8_mode_emuedge(int mode, int mb_x, int mb_y) -{ - switch (mode) { - case DC_PRED8x8: - return check_dc_pred8x8_mode(mode, mb_x, mb_y); - case VERT_PRED8x8: - return !mb_y ? DC_127_PRED8x8 : mode; - case HOR_PRED8x8: - return !mb_x ? DC_129_PRED8x8 : mode; - case PLANE_PRED8x8 /*TM*/: - return check_tm_pred8x8_mode(mode, mb_x, mb_y); - } - return mode; -} - -static av_always_inline -int check_tm_pred4x4_mode(int mode, int mb_x, int mb_y) -{ - if (!mb_x) { - return mb_y ? VERT_VP8_PRED : DC_129_PRED; - } else { - return mb_y ? mode : HOR_VP8_PRED; - } -} - -static av_always_inline -int check_intra_pred4x4_mode_emuedge(int mode, int mb_x, int mb_y, int *copy_buf) -{ - switch (mode) { - case VERT_PRED: - if (!mb_x && mb_y) { - *copy_buf = 1; - return mode; - } - /* fall-through */ - case DIAG_DOWN_LEFT_PRED: - case VERT_LEFT_PRED: - return !mb_y ? DC_127_PRED : mode; - case HOR_PRED: - if (!mb_y) { - *copy_buf = 1; - return mode; - } - /* fall-through */ - case HOR_UP_PRED: - return !mb_x ? DC_129_PRED : mode; - case TM_VP8_PRED: - return check_tm_pred4x4_mode(mode, mb_x, mb_y); - case DC_PRED: // 4x4 DC doesn't use the same "H.264-style" exceptions as 16x16/8x8 DC - case DIAG_DOWN_RIGHT_PRED: - case VERT_RIGHT_PRED: - case HOR_DOWN_PRED: - if (!mb_y || !mb_x) - *copy_buf = 1; - return mode; - } - return mode; -} - -static av_always_inline -void intra_predict(VP8Context *s, VP8ThreadData *td, uint8_t *dst[3], - VP8Macroblock *mb, int mb_x, int mb_y) -{ - AVCodecContext *avctx = s->avctx; - int x, y, mode, nnz; - uint32_t tr; - - // for the first row, we need to run xchg_mb_border to init the top edge to 127 - // otherwise, skip it if we aren't going to deblock - if (!(avctx->flags & CODEC_FLAG_EMU_EDGE && !mb_y) && (s->deblock_filter || !mb_y) && td->thread_nr == 0) - xchg_mb_border(s->top_border[mb_x+1], dst[0], dst[1], dst[2], - s->linesize, s->uvlinesize, mb_x, mb_y, s->mb_width, - s->filter.simple, 1); - - if (mb->mode < MODE_I4x4) { - if (avctx->flags & CODEC_FLAG_EMU_EDGE) { // tested - mode = check_intra_pred8x8_mode_emuedge(mb->mode, mb_x, mb_y); - } else { - mode = check_intra_pred8x8_mode(mb->mode, mb_x, mb_y); - } - s->hpc.pred16x16[mode](dst[0], s->linesize); - } else { - uint8_t *ptr = dst[0]; - uint8_t *intra4x4 = mb->intra4x4_pred_mode_mb; - uint8_t tr_top[4] = { 127, 127, 127, 127 }; - - // all blocks on the right edge of the macroblock use bottom edge - // the top macroblock for their topright edge - uint8_t *tr_right = ptr - s->linesize + 16; - - // if we're on the right edge of the frame, said edge is extended - // from the top macroblock - if (!(!mb_y && avctx->flags & CODEC_FLAG_EMU_EDGE) && - mb_x == s->mb_width-1) { - tr = tr_right[-1]*0x01010101u; - tr_right = (uint8_t *)&tr; - } - - if (mb->skip) - AV_ZERO128(td->non_zero_count_cache); - - for (y = 0; y < 4; y++) { - uint8_t *topright = ptr + 4 - s->linesize; - for (x = 0; x < 4; x++) { - int copy = 0, linesize = s->linesize; - uint8_t *dst = ptr+4*x; - DECLARE_ALIGNED(4, uint8_t, copy_dst)[5*8]; - - if ((y == 0 || x == 3) && mb_y == 0 && avctx->flags & CODEC_FLAG_EMU_EDGE) { - topright = tr_top; - } else if (x == 3) - topright = tr_right; - - if (avctx->flags & CODEC_FLAG_EMU_EDGE) { // mb_x+x or mb_y+y is a hack but works - mode = check_intra_pred4x4_mode_emuedge(intra4x4[x], mb_x + x, mb_y + y, ©); - if (copy) { - dst = copy_dst + 12; - linesize = 8; - if (!(mb_y + y)) { - copy_dst[3] = 127U; - AV_WN32A(copy_dst+4, 127U * 0x01010101U); - } else { - AV_COPY32(copy_dst+4, ptr+4*x-s->linesize); - if (!(mb_x + x)) { - copy_dst[3] = 129U; - } else { - copy_dst[3] = ptr[4*x-s->linesize-1]; - } - } - if (!(mb_x + x)) { - copy_dst[11] = - copy_dst[19] = - copy_dst[27] = - copy_dst[35] = 129U; - } else { - copy_dst[11] = ptr[4*x -1]; - copy_dst[19] = ptr[4*x+s->linesize -1]; - copy_dst[27] = ptr[4*x+s->linesize*2-1]; - copy_dst[35] = ptr[4*x+s->linesize*3-1]; - } - } - } else { - mode = intra4x4[x]; - } - s->hpc.pred4x4[mode](dst, topright, linesize); - if (copy) { - AV_COPY32(ptr+4*x , copy_dst+12); - AV_COPY32(ptr+4*x+s->linesize , copy_dst+20); - AV_COPY32(ptr+4*x+s->linesize*2, copy_dst+28); - AV_COPY32(ptr+4*x+s->linesize*3, copy_dst+36); - } - - nnz = td->non_zero_count_cache[y][x]; - if (nnz) { - if (nnz == 1) - s->vp8dsp.vp8_idct_dc_add(ptr+4*x, td->block[y][x], s->linesize); - else - s->vp8dsp.vp8_idct_add(ptr+4*x, td->block[y][x], s->linesize); - } - topright += 4; - } - - ptr += 4*s->linesize; - intra4x4 += 4; - } - } - - if (avctx->flags & CODEC_FLAG_EMU_EDGE) { - mode = check_intra_pred8x8_mode_emuedge(mb->chroma_pred_mode, mb_x, mb_y); - } else { - mode = check_intra_pred8x8_mode(mb->chroma_pred_mode, mb_x, mb_y); - } - s->hpc.pred8x8[mode](dst[1], s->uvlinesize); - s->hpc.pred8x8[mode](dst[2], s->uvlinesize); - - if (!(avctx->flags & CODEC_FLAG_EMU_EDGE && !mb_y) && (s->deblock_filter || !mb_y) && td->thread_nr == 0) - xchg_mb_border(s->top_border[mb_x+1], dst[0], dst[1], dst[2], - s->linesize, s->uvlinesize, mb_x, mb_y, s->mb_width, - s->filter.simple, 0); -} - -static const uint8_t subpel_idx[3][8] = { - { 0, 1, 2, 1, 2, 1, 2, 1 }, // nr. of left extra pixels, - // also function pointer index - { 0, 3, 5, 3, 5, 3, 5, 3 }, // nr. of extra pixels required - { 0, 2, 3, 2, 3, 2, 3, 2 }, // nr. of right extra pixels -}; - -/** - * luma MC function - * - * @param s VP8 decoding context - * @param dst target buffer for block data at block position - * @param ref reference picture buffer at origin (0, 0) - * @param mv motion vector (relative to block position) to get pixel data from - * @param x_off horizontal position of block from origin (0, 0) - * @param y_off vertical position of block from origin (0, 0) - * @param block_w width of block (16, 8 or 4) - * @param block_h height of block (always same as block_w) - * @param width width of src/dst plane data - * @param height height of src/dst plane data - * @param linesize size of a single line of plane data, including padding - * @param mc_func motion compensation function pointers (bilinear or sixtap MC) - */ -static av_always_inline -void vp8_mc_luma(VP8Context *s, VP8ThreadData *td, uint8_t *dst, - ThreadFrame *ref, const VP56mv *mv, - int x_off, int y_off, int block_w, int block_h, - int width, int height, int linesize, - vp8_mc_func mc_func[3][3]) -{ - uint8_t *src = ref->f->data[0]; - - if (AV_RN32A(mv)) { - - int mx = (mv->x << 1)&7, mx_idx = subpel_idx[0][mx]; - int my = (mv->y << 1)&7, my_idx = subpel_idx[0][my]; - - x_off += mv->x >> 2; - y_off += mv->y >> 2; - - // edge emulation - ff_thread_await_progress(ref, (3 + y_off + block_h + subpel_idx[2][my]) >> 4, 0); - src += y_off * linesize + x_off; - if (x_off < mx_idx || x_off >= width - block_w - subpel_idx[2][mx] || - y_off < my_idx || y_off >= height - block_h - subpel_idx[2][my]) { - s->vdsp.emulated_edge_mc(td->edge_emu_buffer, src - my_idx * linesize - mx_idx, linesize, - block_w + subpel_idx[1][mx], block_h + subpel_idx[1][my], - x_off - mx_idx, y_off - my_idx, width, height); - src = td->edge_emu_buffer + mx_idx + linesize * my_idx; - } - mc_func[my_idx][mx_idx](dst, linesize, src, linesize, block_h, mx, my); - } else { - ff_thread_await_progress(ref, (3 + y_off + block_h) >> 4, 0); - mc_func[0][0](dst, linesize, src + y_off * linesize + x_off, linesize, block_h, 0, 0); - } -} - -/** - * chroma MC function - * - * @param s VP8 decoding context - * @param dst1 target buffer for block data at block position (U plane) - * @param dst2 target buffer for block data at block position (V plane) - * @param ref reference picture buffer at origin (0, 0) - * @param mv motion vector (relative to block position) to get pixel data from - * @param x_off horizontal position of block from origin (0, 0) - * @param y_off vertical position of block from origin (0, 0) - * @param block_w width of block (16, 8 or 4) - * @param block_h height of block (always same as block_w) - * @param width width of src/dst plane data - * @param height height of src/dst plane data - * @param linesize size of a single line of plane data, including padding - * @param mc_func motion compensation function pointers (bilinear or sixtap MC) - */ -static av_always_inline -void vp8_mc_chroma(VP8Context *s, VP8ThreadData *td, uint8_t *dst1, uint8_t *dst2, - ThreadFrame *ref, const VP56mv *mv, int x_off, int y_off, - int block_w, int block_h, int width, int height, int linesize, - vp8_mc_func mc_func[3][3]) -{ - uint8_t *src1 = ref->f->data[1], *src2 = ref->f->data[2]; - - if (AV_RN32A(mv)) { - int mx = mv->x&7, mx_idx = subpel_idx[0][mx]; - int my = mv->y&7, my_idx = subpel_idx[0][my]; - - x_off += mv->x >> 3; - y_off += mv->y >> 3; - - // edge emulation - src1 += y_off * linesize + x_off; - src2 += y_off * linesize + x_off; - ff_thread_await_progress(ref, (3 + y_off + block_h + subpel_idx[2][my]) >> 3, 0); - if (x_off < mx_idx || x_off >= width - block_w - subpel_idx[2][mx] || - y_off < my_idx || y_off >= height - block_h - subpel_idx[2][my]) { - s->vdsp.emulated_edge_mc(td->edge_emu_buffer, src1 - my_idx * linesize - mx_idx, linesize, - block_w + subpel_idx[1][mx], block_h + subpel_idx[1][my], - x_off - mx_idx, y_off - my_idx, width, height); - src1 = td->edge_emu_buffer + mx_idx + linesize * my_idx; - mc_func[my_idx][mx_idx](dst1, linesize, src1, linesize, block_h, mx, my); - - s->vdsp.emulated_edge_mc(td->edge_emu_buffer, src2 - my_idx * linesize - mx_idx, linesize, - block_w + subpel_idx[1][mx], block_h + subpel_idx[1][my], - x_off - mx_idx, y_off - my_idx, width, height); - src2 = td->edge_emu_buffer + mx_idx + linesize * my_idx; - mc_func[my_idx][mx_idx](dst2, linesize, src2, linesize, block_h, mx, my); - } else { - mc_func[my_idx][mx_idx](dst1, linesize, src1, linesize, block_h, mx, my); - mc_func[my_idx][mx_idx](dst2, linesize, src2, linesize, block_h, mx, my); - } - } else { - ff_thread_await_progress(ref, (3 + y_off + block_h) >> 3, 0); - mc_func[0][0](dst1, linesize, src1 + y_off * linesize + x_off, linesize, block_h, 0, 0); - mc_func[0][0](dst2, linesize, src2 + y_off * linesize + x_off, linesize, block_h, 0, 0); - } -} - -static av_always_inline -void vp8_mc_part(VP8Context *s, VP8ThreadData *td, uint8_t *dst[3], - ThreadFrame *ref_frame, int x_off, int y_off, - int bx_off, int by_off, - int block_w, int block_h, - int width, int height, VP56mv *mv) -{ - VP56mv uvmv = *mv; - - /* Y */ - vp8_mc_luma(s, td, dst[0] + by_off * s->linesize + bx_off, - ref_frame, mv, x_off + bx_off, y_off + by_off, - block_w, block_h, width, height, s->linesize, - s->put_pixels_tab[block_w == 8]); - - /* U/V */ - if (s->profile == 3) { - uvmv.x &= ~7; - uvmv.y &= ~7; - } - x_off >>= 1; y_off >>= 1; - bx_off >>= 1; by_off >>= 1; - width >>= 1; height >>= 1; - block_w >>= 1; block_h >>= 1; - vp8_mc_chroma(s, td, dst[1] + by_off * s->uvlinesize + bx_off, - dst[2] + by_off * s->uvlinesize + bx_off, ref_frame, - &uvmv, x_off + bx_off, y_off + by_off, - block_w, block_h, width, height, s->uvlinesize, - s->put_pixels_tab[1 + (block_w == 4)]); -} - -/* Fetch pixels for estimated mv 4 macroblocks ahead. - * Optimized for 64-byte cache lines. Inspired by ffh264 prefetch_motion. */ -static av_always_inline void prefetch_motion(VP8Context *s, VP8Macroblock *mb, int mb_x, int mb_y, int mb_xy, int ref) -{ - /* Don't prefetch refs that haven't been used very often this frame. */ - if (s->ref_count[ref-1] > (mb_xy >> 5)) { - int x_off = mb_x << 4, y_off = mb_y << 4; - int mx = (mb->mv.x>>2) + x_off + 8; - int my = (mb->mv.y>>2) + y_off; - uint8_t **src= s->framep[ref]->tf.f->data; - int off= mx + (my + (mb_x&3)*4)*s->linesize + 64; - /* For threading, a ff_thread_await_progress here might be useful, but - * it actually slows down the decoder. Since a bad prefetch doesn't - * generate bad decoder output, we don't run it here. */ - s->vdsp.prefetch(src[0]+off, s->linesize, 4); - off= (mx>>1) + ((my>>1) + (mb_x&7))*s->uvlinesize + 64; - s->vdsp.prefetch(src[1]+off, src[2]-src[1], 2); - } -} - -/** - * Apply motion vectors to prediction buffer, chapter 18. - */ -static av_always_inline -void inter_predict(VP8Context *s, VP8ThreadData *td, uint8_t *dst[3], - VP8Macroblock *mb, int mb_x, int mb_y) -{ - int x_off = mb_x << 4, y_off = mb_y << 4; - int width = 16*s->mb_width, height = 16*s->mb_height; - ThreadFrame *ref = &s->framep[mb->ref_frame]->tf; - VP56mv *bmv = mb->bmv; - - switch (mb->partitioning) { - case VP8_SPLITMVMODE_NONE: - vp8_mc_part(s, td, dst, ref, x_off, y_off, - 0, 0, 16, 16, width, height, &mb->mv); - break; - case VP8_SPLITMVMODE_4x4: { - int x, y; - VP56mv uvmv; - - /* Y */ - for (y = 0; y < 4; y++) { - for (x = 0; x < 4; x++) { - vp8_mc_luma(s, td, dst[0] + 4*y*s->linesize + x*4, - ref, &bmv[4*y + x], - 4*x + x_off, 4*y + y_off, 4, 4, - width, height, s->linesize, - s->put_pixels_tab[2]); - } - } - - /* U/V */ - x_off >>= 1; y_off >>= 1; width >>= 1; height >>= 1; - for (y = 0; y < 2; y++) { - for (x = 0; x < 2; x++) { - uvmv.x = mb->bmv[ 2*y * 4 + 2*x ].x + - mb->bmv[ 2*y * 4 + 2*x+1].x + - mb->bmv[(2*y+1) * 4 + 2*x ].x + - mb->bmv[(2*y+1) * 4 + 2*x+1].x; - uvmv.y = mb->bmv[ 2*y * 4 + 2*x ].y + - mb->bmv[ 2*y * 4 + 2*x+1].y + - mb->bmv[(2*y+1) * 4 + 2*x ].y + - mb->bmv[(2*y+1) * 4 + 2*x+1].y; - uvmv.x = (uvmv.x + 2 + (uvmv.x >> (INT_BIT-1))) >> 2; - uvmv.y = (uvmv.y + 2 + (uvmv.y >> (INT_BIT-1))) >> 2; - if (s->profile == 3) { - uvmv.x &= ~7; - uvmv.y &= ~7; - } - vp8_mc_chroma(s, td, dst[1] + 4*y*s->uvlinesize + x*4, - dst[2] + 4*y*s->uvlinesize + x*4, ref, &uvmv, - 4*x + x_off, 4*y + y_off, 4, 4, - width, height, s->uvlinesize, - s->put_pixels_tab[2]); - } - } - break; - } - case VP8_SPLITMVMODE_16x8: - vp8_mc_part(s, td, dst, ref, x_off, y_off, - 0, 0, 16, 8, width, height, &bmv[0]); - vp8_mc_part(s, td, dst, ref, x_off, y_off, - 0, 8, 16, 8, width, height, &bmv[1]); - break; - case VP8_SPLITMVMODE_8x16: - vp8_mc_part(s, td, dst, ref, x_off, y_off, - 0, 0, 8, 16, width, height, &bmv[0]); - vp8_mc_part(s, td, dst, ref, x_off, y_off, - 8, 0, 8, 16, width, height, &bmv[1]); - break; - case VP8_SPLITMVMODE_8x8: - vp8_mc_part(s, td, dst, ref, x_off, y_off, - 0, 0, 8, 8, width, height, &bmv[0]); - vp8_mc_part(s, td, dst, ref, x_off, y_off, - 8, 0, 8, 8, width, height, &bmv[1]); - vp8_mc_part(s, td, dst, ref, x_off, y_off, - 0, 8, 8, 8, width, height, &bmv[2]); - vp8_mc_part(s, td, dst, ref, x_off, y_off, - 8, 8, 8, 8, width, height, &bmv[3]); - break; - } -} - -static av_always_inline void idct_mb(VP8Context *s, VP8ThreadData *td, - uint8_t *dst[3], VP8Macroblock *mb) -{ - int x, y, ch; - - if (mb->mode != MODE_I4x4) { - uint8_t *y_dst = dst[0]; - for (y = 0; y < 4; y++) { - uint32_t nnz4 = AV_RL32(td->non_zero_count_cache[y]); - if (nnz4) { - if (nnz4&~0x01010101) { - for (x = 0; x < 4; x++) { - if ((uint8_t)nnz4 == 1) - s->vp8dsp.vp8_idct_dc_add(y_dst+4*x, td->block[y][x], s->linesize); - else if((uint8_t)nnz4 > 1) - s->vp8dsp.vp8_idct_add(y_dst+4*x, td->block[y][x], s->linesize); - nnz4 >>= 8; - if (!nnz4) - break; - } - } else { - s->vp8dsp.vp8_idct_dc_add4y(y_dst, td->block[y], s->linesize); - } - } - y_dst += 4*s->linesize; - } - } - - for (ch = 0; ch < 2; ch++) { - uint32_t nnz4 = AV_RL32(td->non_zero_count_cache[4+ch]); - if (nnz4) { - uint8_t *ch_dst = dst[1+ch]; - if (nnz4&~0x01010101) { - for (y = 0; y < 2; y++) { - for (x = 0; x < 2; x++) { - if ((uint8_t)nnz4 == 1) - s->vp8dsp.vp8_idct_dc_add(ch_dst+4*x, td->block[4+ch][(y<<1)+x], s->uvlinesize); - else if((uint8_t)nnz4 > 1) - s->vp8dsp.vp8_idct_add(ch_dst+4*x, td->block[4+ch][(y<<1)+x], s->uvlinesize); - nnz4 >>= 8; - if (!nnz4) - goto chroma_idct_end; - } - ch_dst += 4*s->uvlinesize; - } - } else { - s->vp8dsp.vp8_idct_dc_add4uv(ch_dst, td->block[4+ch], s->uvlinesize); - } - } -chroma_idct_end: ; - } -} - -static av_always_inline void filter_level_for_mb(VP8Context *s, VP8Macroblock *mb, VP8FilterStrength *f ) -{ - int interior_limit, filter_level; - - if (s->segmentation.enabled) { - filter_level = s->segmentation.filter_level[mb->segment]; - if (!s->segmentation.absolute_vals) - filter_level += s->filter.level; - } else - filter_level = s->filter.level; - - if (s->lf_delta.enabled) { - filter_level += s->lf_delta.ref[mb->ref_frame]; - filter_level += s->lf_delta.mode[mb->mode]; - } - - filter_level = av_clip_uintp2(filter_level, 6); - - interior_limit = filter_level; - if (s->filter.sharpness) { - interior_limit >>= (s->filter.sharpness + 3) >> 2; - interior_limit = FFMIN(interior_limit, 9 - s->filter.sharpness); - } - interior_limit = FFMAX(interior_limit, 1); - - f->filter_level = filter_level; - f->inner_limit = interior_limit; - f->inner_filter = !mb->skip || mb->mode == MODE_I4x4 || mb->mode == VP8_MVMODE_SPLIT; -} - -static av_always_inline void filter_mb(VP8Context *s, uint8_t *dst[3], VP8FilterStrength *f, int mb_x, int mb_y) -{ - int mbedge_lim, bedge_lim, hev_thresh; - int filter_level = f->filter_level; - int inner_limit = f->inner_limit; - int inner_filter = f->inner_filter; - int linesize = s->linesize; - int uvlinesize = s->uvlinesize; - static const uint8_t hev_thresh_lut[2][64] = { - { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, - 3, 3, 3, 3 }, - { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2 } - }; - - if (!filter_level) - return; - - bedge_lim = 2*filter_level + inner_limit; - mbedge_lim = bedge_lim + 4; - - hev_thresh = hev_thresh_lut[s->keyframe][filter_level]; - - if (mb_x) { - s->vp8dsp.vp8_h_loop_filter16y(dst[0], linesize, - mbedge_lim, inner_limit, hev_thresh); - s->vp8dsp.vp8_h_loop_filter8uv(dst[1], dst[2], uvlinesize, - mbedge_lim, inner_limit, hev_thresh); - } - - if (inner_filter) { - s->vp8dsp.vp8_h_loop_filter16y_inner(dst[0]+ 4, linesize, bedge_lim, - inner_limit, hev_thresh); - s->vp8dsp.vp8_h_loop_filter16y_inner(dst[0]+ 8, linesize, bedge_lim, - inner_limit, hev_thresh); - s->vp8dsp.vp8_h_loop_filter16y_inner(dst[0]+12, linesize, bedge_lim, - inner_limit, hev_thresh); - s->vp8dsp.vp8_h_loop_filter8uv_inner(dst[1] + 4, dst[2] + 4, - uvlinesize, bedge_lim, - inner_limit, hev_thresh); - } - - if (mb_y) { - s->vp8dsp.vp8_v_loop_filter16y(dst[0], linesize, - mbedge_lim, inner_limit, hev_thresh); - s->vp8dsp.vp8_v_loop_filter8uv(dst[1], dst[2], uvlinesize, - mbedge_lim, inner_limit, hev_thresh); - } - - if (inner_filter) { - s->vp8dsp.vp8_v_loop_filter16y_inner(dst[0]+ 4*linesize, - linesize, bedge_lim, - inner_limit, hev_thresh); - s->vp8dsp.vp8_v_loop_filter16y_inner(dst[0]+ 8*linesize, - linesize, bedge_lim, - inner_limit, hev_thresh); - s->vp8dsp.vp8_v_loop_filter16y_inner(dst[0]+12*linesize, - linesize, bedge_lim, - inner_limit, hev_thresh); - s->vp8dsp.vp8_v_loop_filter8uv_inner(dst[1] + 4 * uvlinesize, - dst[2] + 4 * uvlinesize, - uvlinesize, bedge_lim, - inner_limit, hev_thresh); - } -} - -static av_always_inline void filter_mb_simple(VP8Context *s, uint8_t *dst, VP8FilterStrength *f, int mb_x, int mb_y) -{ - int mbedge_lim, bedge_lim; - int filter_level = f->filter_level; - int inner_limit = f->inner_limit; - int inner_filter = f->inner_filter; - int linesize = s->linesize; - - if (!filter_level) - return; - - bedge_lim = 2*filter_level + inner_limit; - mbedge_lim = bedge_lim + 4; - - if (mb_x) - s->vp8dsp.vp8_h_loop_filter_simple(dst, linesize, mbedge_lim); - if (inner_filter) { - s->vp8dsp.vp8_h_loop_filter_simple(dst+ 4, linesize, bedge_lim); - s->vp8dsp.vp8_h_loop_filter_simple(dst+ 8, linesize, bedge_lim); - s->vp8dsp.vp8_h_loop_filter_simple(dst+12, linesize, bedge_lim); - } - - if (mb_y) - s->vp8dsp.vp8_v_loop_filter_simple(dst, linesize, mbedge_lim); - if (inner_filter) { - s->vp8dsp.vp8_v_loop_filter_simple(dst+ 4*linesize, linesize, bedge_lim); - s->vp8dsp.vp8_v_loop_filter_simple(dst+ 8*linesize, linesize, bedge_lim); - s->vp8dsp.vp8_v_loop_filter_simple(dst+12*linesize, linesize, bedge_lim); - } -} - -#define MARGIN (16 << 2) -static void vp8_decode_mv_mb_modes(AVCodecContext *avctx, VP8Frame *curframe, - VP8Frame *prev_frame) -{ - VP8Context *s = avctx->priv_data; - int mb_x, mb_y; - - s->mv_min.y = -MARGIN; - s->mv_max.y = ((s->mb_height - 1) << 6) + MARGIN; - for (mb_y = 0; mb_y < s->mb_height; mb_y++) { - VP8Macroblock *mb = s->macroblocks_base + ((s->mb_width+1)*(mb_y + 1) + 1); - int mb_xy = mb_y*s->mb_width; - - AV_WN32A(s->intra4x4_pred_mode_left, DC_PRED*0x01010101); - - s->mv_min.x = -MARGIN; - s->mv_max.x = ((s->mb_width - 1) << 6) + MARGIN; - for (mb_x = 0; mb_x < s->mb_width; mb_x++, mb_xy++, mb++) { - if (mb_y == 0) - AV_WN32A((mb-s->mb_width-1)->intra4x4_pred_mode_top, DC_PRED*0x01010101); - decode_mb_mode(s, mb, mb_x, mb_y, curframe->seg_map->data + mb_xy, - prev_frame && prev_frame->seg_map ? - prev_frame->seg_map->data + mb_xy : NULL, 1); - s->mv_min.x -= 64; - s->mv_max.x -= 64; - } - s->mv_min.y -= 64; - s->mv_max.y -= 64; - } -} - -#if HAVE_THREADS -#define check_thread_pos(td, otd, mb_x_check, mb_y_check)\ - do {\ - int tmp = (mb_y_check << 16) | (mb_x_check & 0xFFFF);\ - if (otd->thread_mb_pos < tmp) {\ - pthread_mutex_lock(&otd->lock);\ - td->wait_mb_pos = tmp;\ - do {\ - if (otd->thread_mb_pos >= tmp)\ - break;\ - pthread_cond_wait(&otd->cond, &otd->lock);\ - } while (1);\ - td->wait_mb_pos = INT_MAX;\ - pthread_mutex_unlock(&otd->lock);\ - }\ - } while(0); - -#define update_pos(td, mb_y, mb_x)\ - do {\ - int pos = (mb_y << 16) | (mb_x & 0xFFFF);\ - int sliced_threading = (avctx->active_thread_type == FF_THREAD_SLICE) && (num_jobs > 1);\ - int is_null = (next_td == NULL) || (prev_td == NULL);\ - int pos_check = (is_null) ? 1 :\ - (next_td != td && pos >= next_td->wait_mb_pos) ||\ - (prev_td != td && pos >= prev_td->wait_mb_pos);\ - td->thread_mb_pos = pos;\ - if (sliced_threading && pos_check) {\ - pthread_mutex_lock(&td->lock);\ - pthread_cond_broadcast(&td->cond);\ - pthread_mutex_unlock(&td->lock);\ - }\ - } while(0); -#else -#define check_thread_pos(td, otd, mb_x_check, mb_y_check) -#define update_pos(td, mb_y, mb_x) -#endif - -static void vp8_decode_mb_row_no_filter(AVCodecContext *avctx, void *tdata, - int jobnr, int threadnr) -{ - VP8Context *s = avctx->priv_data; - VP8ThreadData *prev_td, *next_td, *td = &s->thread_data[threadnr]; - int mb_y = td->thread_mb_pos>>16; - int i, y, mb_x, mb_xy = mb_y*s->mb_width; - int num_jobs = s->num_jobs; - VP8Frame *curframe = s->curframe, *prev_frame = s->prev_frame; - VP56RangeCoder *c = &s->coeff_partition[mb_y & (s->num_coeff_partitions-1)]; - VP8Macroblock *mb; - uint8_t *dst[3] = { - curframe->tf.f->data[0] + 16*mb_y*s->linesize, - curframe->tf.f->data[1] + 8*mb_y*s->uvlinesize, - curframe->tf.f->data[2] + 8*mb_y*s->uvlinesize - }; - if (mb_y == 0) prev_td = td; - else prev_td = &s->thread_data[(jobnr + num_jobs - 1)%num_jobs]; - if (mb_y == s->mb_height-1) next_td = td; - else next_td = &s->thread_data[(jobnr + 1)%num_jobs]; - if (s->mb_layout == 1) - mb = s->macroblocks_base + ((s->mb_width+1)*(mb_y + 1) + 1); - else { - mb = s->macroblocks + (s->mb_height - mb_y - 1)*2; - memset(mb - 1, 0, sizeof(*mb)); // zero left macroblock - AV_WN32A(s->intra4x4_pred_mode_left, DC_PRED*0x01010101); - } - - memset(td->left_nnz, 0, sizeof(td->left_nnz)); - // left edge of 129 for intra prediction - if (!(avctx->flags & CODEC_FLAG_EMU_EDGE)) { - for (i = 0; i < 3; i++) - for (y = 0; y < 16>>!!i; y++) - dst[i][y*curframe->tf.f->linesize[i]-1] = 129; - if (mb_y == 1) { - s->top_border[0][15] = s->top_border[0][23] = s->top_border[0][31] = 129; - } - } - - s->mv_min.x = -MARGIN; - s->mv_max.x = ((s->mb_width - 1) << 6) + MARGIN; - - for (mb_x = 0; mb_x < s->mb_width; mb_x++, mb_xy++, mb++) { - // Wait for previous thread to read mb_x+2, and reach mb_y-1. - if (prev_td != td) { - if (threadnr != 0) { - check_thread_pos(td, prev_td, mb_x+1, mb_y-1); - } else { - check_thread_pos(td, prev_td, (s->mb_width+3) + (mb_x+1), mb_y-1); - } - } - - s->vdsp.prefetch(dst[0] + (mb_x&3)*4*s->linesize + 64, s->linesize, 4); - s->vdsp.prefetch(dst[1] + (mb_x&7)*s->uvlinesize + 64, dst[2] - dst[1], 2); - - if (!s->mb_layout) - decode_mb_mode(s, mb, mb_x, mb_y, curframe->seg_map->data + mb_xy, - prev_frame && prev_frame->seg_map ? - prev_frame->seg_map->data + mb_xy : NULL, 0); - - prefetch_motion(s, mb, mb_x, mb_y, mb_xy, VP56_FRAME_PREVIOUS); - - if (!mb->skip) - decode_mb_coeffs(s, td, c, mb, s->top_nnz[mb_x], td->left_nnz); - - if (mb->mode <= MODE_I4x4) - intra_predict(s, td, dst, mb, mb_x, mb_y); - else - inter_predict(s, td, dst, mb, mb_x, mb_y); - - prefetch_motion(s, mb, mb_x, mb_y, mb_xy, VP56_FRAME_GOLDEN); - - if (!mb->skip) { - idct_mb(s, td, dst, mb); - } else { - AV_ZERO64(td->left_nnz); - AV_WN64(s->top_nnz[mb_x], 0); // array of 9, so unaligned - - // Reset DC block predictors if they would exist if the mb had coefficients - if (mb->mode != MODE_I4x4 && mb->mode != VP8_MVMODE_SPLIT) { - td->left_nnz[8] = 0; - s->top_nnz[mb_x][8] = 0; - } - } - - if (s->deblock_filter) - filter_level_for_mb(s, mb, &td->filter_strength[mb_x]); - - if (s->deblock_filter && num_jobs != 1 && threadnr == num_jobs-1) { - if (s->filter.simple) - backup_mb_border(s->top_border[mb_x+1], dst[0], NULL, NULL, s->linesize, 0, 1); - else - backup_mb_border(s->top_border[mb_x+1], dst[0], dst[1], dst[2], s->linesize, s->uvlinesize, 0); - } - - prefetch_motion(s, mb, mb_x, mb_y, mb_xy, VP56_FRAME_GOLDEN2); - - dst[0] += 16; - dst[1] += 8; - dst[2] += 8; - s->mv_min.x -= 64; - s->mv_max.x -= 64; - - if (mb_x == s->mb_width+1) { - update_pos(td, mb_y, s->mb_width+3); - } else { - update_pos(td, mb_y, mb_x); - } - } -} - -static void vp8_filter_mb_row(AVCodecContext *avctx, void *tdata, - int jobnr, int threadnr) -{ - VP8Context *s = avctx->priv_data; - VP8ThreadData *td = &s->thread_data[threadnr]; - int mb_x, mb_y = td->thread_mb_pos>>16, num_jobs = s->num_jobs; - AVFrame *curframe = s->curframe->tf.f; - VP8Macroblock *mb; - VP8ThreadData *prev_td, *next_td; - uint8_t *dst[3] = { - curframe->data[0] + 16*mb_y*s->linesize, - curframe->data[1] + 8*mb_y*s->uvlinesize, - curframe->data[2] + 8*mb_y*s->uvlinesize - }; - - if (s->mb_layout == 1) - mb = s->macroblocks_base + ((s->mb_width+1)*(mb_y + 1) + 1); - else - mb = s->macroblocks + (s->mb_height - mb_y - 1)*2; - - if (mb_y == 0) prev_td = td; - else prev_td = &s->thread_data[(jobnr + num_jobs - 1)%num_jobs]; - if (mb_y == s->mb_height-1) next_td = td; - else next_td = &s->thread_data[(jobnr + 1)%num_jobs]; - - for (mb_x = 0; mb_x < s->mb_width; mb_x++, mb++) { - VP8FilterStrength *f = &td->filter_strength[mb_x]; - if (prev_td != td) { - check_thread_pos(td, prev_td, (mb_x+1) + (s->mb_width+3), mb_y-1); - } - if (next_td != td) - if (next_td != &s->thread_data[0]) { - check_thread_pos(td, next_td, mb_x+1, mb_y+1); - } - - if (num_jobs == 1) { - if (s->filter.simple) - backup_mb_border(s->top_border[mb_x+1], dst[0], NULL, NULL, s->linesize, 0, 1); - else - backup_mb_border(s->top_border[mb_x+1], dst[0], dst[1], dst[2], s->linesize, s->uvlinesize, 0); - } - - if (s->filter.simple) - filter_mb_simple(s, dst[0], f, mb_x, mb_y); - else - filter_mb(s, dst, f, mb_x, mb_y); - dst[0] += 16; - dst[1] += 8; - dst[2] += 8; - - update_pos(td, mb_y, (s->mb_width+3) + mb_x); - } -} - -static int vp8_decode_mb_row_sliced(AVCodecContext *avctx, void *tdata, - int jobnr, int threadnr) -{ - VP8Context *s = avctx->priv_data; - VP8ThreadData *td = &s->thread_data[jobnr]; - VP8ThreadData *next_td = NULL, *prev_td = NULL; - VP8Frame *curframe = s->curframe; - int mb_y, num_jobs = s->num_jobs; - td->thread_nr = threadnr; - for (mb_y = jobnr; mb_y < s->mb_height; mb_y += num_jobs) { - if (mb_y >= s->mb_height) break; - td->thread_mb_pos = mb_y<<16; - vp8_decode_mb_row_no_filter(avctx, tdata, jobnr, threadnr); - if (s->deblock_filter) - vp8_filter_mb_row(avctx, tdata, jobnr, threadnr); - update_pos(td, mb_y, INT_MAX & 0xFFFF); - - s->mv_min.y -= 64; - s->mv_max.y -= 64; - - if (avctx->active_thread_type == FF_THREAD_FRAME) - ff_thread_report_progress(&curframe->tf, mb_y, 0); - } - - return 0; -} - -static int vp8_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, - AVPacket *avpkt) -{ - VP8Context *s = avctx->priv_data; - int ret, i, referenced, num_jobs; - enum AVDiscard skip_thresh; - VP8Frame *av_uninit(curframe), *prev_frame; - - if ((ret = decode_frame_header(s, avpkt->data, avpkt->size)) < 0) - goto err; - - prev_frame = s->framep[VP56_FRAME_CURRENT]; - - referenced = s->update_last || s->update_golden == VP56_FRAME_CURRENT - || s->update_altref == VP56_FRAME_CURRENT; - - skip_thresh = !referenced ? AVDISCARD_NONREF : - !s->keyframe ? AVDISCARD_NONKEY : AVDISCARD_ALL; - - if (avctx->skip_frame >= skip_thresh) { - s->invisible = 1; - memcpy(&s->next_framep[0], &s->framep[0], sizeof(s->framep[0]) * 4); - goto skip_decode; - } - s->deblock_filter = s->filter.level && avctx->skip_loop_filter < skip_thresh; - - // release no longer referenced frames - for (i = 0; i < 5; i++) - if (s->frames[i].tf.f->data[0] && - &s->frames[i] != prev_frame && - &s->frames[i] != s->framep[VP56_FRAME_PREVIOUS] && - &s->frames[i] != s->framep[VP56_FRAME_GOLDEN] && - &s->frames[i] != s->framep[VP56_FRAME_GOLDEN2]) - vp8_release_frame(s, &s->frames[i]); - - // find a free buffer - for (i = 0; i < 5; i++) - if (&s->frames[i] != prev_frame && - &s->frames[i] != s->framep[VP56_FRAME_PREVIOUS] && - &s->frames[i] != s->framep[VP56_FRAME_GOLDEN] && - &s->frames[i] != s->framep[VP56_FRAME_GOLDEN2]) { - curframe = s->framep[VP56_FRAME_CURRENT] = &s->frames[i]; - break; - } - if (i == 5) { - av_log(avctx, AV_LOG_FATAL, "Ran out of free frames!\n"); - abort(); - } - if (curframe->tf.f->data[0]) - vp8_release_frame(s, curframe); - - // Given that arithmetic probabilities are updated every frame, it's quite likely - // that the values we have on a random interframe are complete junk if we didn't - // start decode on a keyframe. So just don't display anything rather than junk. - if (!s->keyframe && (!s->framep[VP56_FRAME_PREVIOUS] || - !s->framep[VP56_FRAME_GOLDEN] || - !s->framep[VP56_FRAME_GOLDEN2])) { - av_log(avctx, AV_LOG_WARNING, "Discarding interframe without a prior keyframe!\n"); - ret = AVERROR_INVALIDDATA; - goto err; - } - - curframe->tf.f->key_frame = s->keyframe; - curframe->tf.f->pict_type = s->keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P; - if ((ret = vp8_alloc_frame(s, curframe, referenced)) < 0) - goto err; - - // check if golden and altref are swapped - if (s->update_altref != VP56_FRAME_NONE) { - s->next_framep[VP56_FRAME_GOLDEN2] = s->framep[s->update_altref]; - } else { - s->next_framep[VP56_FRAME_GOLDEN2] = s->framep[VP56_FRAME_GOLDEN2]; - } - if (s->update_golden != VP56_FRAME_NONE) { - s->next_framep[VP56_FRAME_GOLDEN] = s->framep[s->update_golden]; - } else { - s->next_framep[VP56_FRAME_GOLDEN] = s->framep[VP56_FRAME_GOLDEN]; - } - if (s->update_last) { - s->next_framep[VP56_FRAME_PREVIOUS] = curframe; - } else { - s->next_framep[VP56_FRAME_PREVIOUS] = s->framep[VP56_FRAME_PREVIOUS]; - } - s->next_framep[VP56_FRAME_CURRENT] = curframe; - - ff_thread_finish_setup(avctx); - - s->linesize = curframe->tf.f->linesize[0]; - s->uvlinesize = curframe->tf.f->linesize[1]; - - if (!s->thread_data[0].edge_emu_buffer) - for (i = 0; i < MAX_THREADS; i++) - s->thread_data[i].edge_emu_buffer = av_malloc(21*s->linesize); - - memset(s->top_nnz, 0, s->mb_width*sizeof(*s->top_nnz)); - /* Zero macroblock structures for top/top-left prediction from outside the frame. */ - if (!s->mb_layout) - memset(s->macroblocks + s->mb_height*2 - 1, 0, (s->mb_width+1)*sizeof(*s->macroblocks)); - if (!s->mb_layout && s->keyframe) - memset(s->intra4x4_pred_mode_top, DC_PRED, s->mb_width*4); - - // top edge of 127 for intra prediction - if (!(avctx->flags & CODEC_FLAG_EMU_EDGE)) { - s->top_border[0][15] = s->top_border[0][23] = 127; - s->top_border[0][31] = 127; - memset(s->top_border[1], 127, s->mb_width*sizeof(*s->top_border)); - } - memset(s->ref_count, 0, sizeof(s->ref_count)); - - - // Make sure the previous frame has read its segmentation map, - // if we re-use the same map. - if (prev_frame && s->segmentation.enabled && !s->segmentation.update_map) - ff_thread_await_progress(&prev_frame->tf, 1, 0); - - if (s->mb_layout == 1) - vp8_decode_mv_mb_modes(avctx, curframe, prev_frame); - - if (avctx->active_thread_type == FF_THREAD_FRAME) - num_jobs = 1; - else - num_jobs = FFMIN(s->num_coeff_partitions, avctx->thread_count); - s->num_jobs = num_jobs; - s->curframe = curframe; - s->prev_frame = prev_frame; - s->mv_min.y = -MARGIN; - s->mv_max.y = ((s->mb_height - 1) << 6) + MARGIN; - for (i = 0; i < MAX_THREADS; i++) { - s->thread_data[i].thread_mb_pos = 0; - s->thread_data[i].wait_mb_pos = INT_MAX; - } - avctx->execute2(avctx, vp8_decode_mb_row_sliced, s->thread_data, NULL, num_jobs); - - ff_thread_report_progress(&curframe->tf, INT_MAX, 0); - memcpy(&s->framep[0], &s->next_framep[0], sizeof(s->framep[0]) * 4); - -skip_decode: - // if future frames don't use the updated probabilities, - // reset them to the values we saved - if (!s->update_probabilities) - s->prob[0] = s->prob[1]; - - if (!s->invisible) { - if ((ret = av_frame_ref(data, curframe->tf.f)) < 0) - return ret; - *got_frame = 1; - } - - return avpkt->size; -err: - memcpy(&s->next_framep[0], &s->framep[0], sizeof(s->framep[0]) * 4); - return ret; -} - -static av_cold int vp8_decode_free(AVCodecContext *avctx) -{ - VP8Context *s = avctx->priv_data; - int i; - - vp8_decode_flush_impl(avctx, 1); - for (i = 0; i < FF_ARRAY_ELEMS(s->frames); i++) - av_frame_free(&s->frames[i].tf.f); - - return 0; -} - -static av_cold int vp8_init_frames(VP8Context *s) -{ - int i; - for (i = 0; i < FF_ARRAY_ELEMS(s->frames); i++) { - s->frames[i].tf.f = av_frame_alloc(); - if (!s->frames[i].tf.f) - return AVERROR(ENOMEM); - } - return 0; -} - -static av_cold int vp8_decode_init(AVCodecContext *avctx) -{ - VP8Context *s = avctx->priv_data; - int ret; - - s->avctx = avctx; - avctx->pix_fmt = AV_PIX_FMT_YUV420P; - avctx->internal->allocate_progress = 1; - - ff_videodsp_init(&s->vdsp, 8); - ff_h264_pred_init(&s->hpc, AV_CODEC_ID_VP8, 8, 1); - ff_vp8dsp_init(&s->vp8dsp); - - if ((ret = vp8_init_frames(s)) < 0) { - vp8_decode_free(avctx); - return ret; - } - - return 0; -} - -static av_cold int vp8_decode_init_thread_copy(AVCodecContext *avctx) -{ - VP8Context *s = avctx->priv_data; - int ret; - - s->avctx = avctx; - - if ((ret = vp8_init_frames(s)) < 0) { - vp8_decode_free(avctx); - return ret; - } - - return 0; -} - -#define REBASE(pic) \ - pic ? pic - &s_src->frames[0] + &s->frames[0] : NULL - -static int vp8_decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src) -{ - VP8Context *s = dst->priv_data, *s_src = src->priv_data; - int i; - - if (s->macroblocks_base && - (s_src->mb_width != s->mb_width || s_src->mb_height != s->mb_height)) { - free_buffers(s); - s->mb_width = s_src->mb_width; - s->mb_height = s_src->mb_height; - } - - s->prob[0] = s_src->prob[!s_src->update_probabilities]; - s->segmentation = s_src->segmentation; - s->lf_delta = s_src->lf_delta; - memcpy(s->sign_bias, s_src->sign_bias, sizeof(s->sign_bias)); - - for (i = 0; i < FF_ARRAY_ELEMS(s_src->frames); i++) { - if (s_src->frames[i].tf.f->data[0]) { - int ret = vp8_ref_frame(s, &s->frames[i], &s_src->frames[i]); - if (ret < 0) - return ret; - } - } - - s->framep[0] = REBASE(s_src->next_framep[0]); - s->framep[1] = REBASE(s_src->next_framep[1]); - s->framep[2] = REBASE(s_src->next_framep[2]); - s->framep[3] = REBASE(s_src->next_framep[3]); - - return 0; -} - -AVCodec ff_vp8_decoder = { - .name = "vp8", - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_VP8, - .priv_data_size = sizeof(VP8Context), - .init = vp8_decode_init, - .close = vp8_decode_free, - .decode = vp8_decode_frame, - .capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS | CODEC_CAP_SLICE_THREADS, - .flush = vp8_decode_flush, - .long_name = NULL_IF_CONFIG_SMALL("On2 VP8"), - .init_thread_copy = ONLY_IF_THREADS_ENABLED(vp8_decode_init_thread_copy), - .update_thread_context = ONLY_IF_THREADS_ENABLED(vp8_decode_update_thread_context), -}; |