From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- media/ffvpx/libavcodec/vp9.c | 1914 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1914 insertions(+) create mode 100644 media/ffvpx/libavcodec/vp9.c (limited to 'media/ffvpx/libavcodec/vp9.c') diff --git a/media/ffvpx/libavcodec/vp9.c b/media/ffvpx/libavcodec/vp9.c new file mode 100644 index 0000000000..7c0a246446 --- /dev/null +++ b/media/ffvpx/libavcodec/vp9.c @@ -0,0 +1,1914 @@ +/* + * VP9 compatible video decoder + * + * Copyright (C) 2013 Ronald S. Bultje + * Copyright (C) 2013 Clément Bœsch + * + * 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 "config_components.h" + +#include "avcodec.h" +#include "codec_internal.h" +#include "decode.h" +#include "get_bits.h" +#include "hwconfig.h" +#include "profiles.h" +#include "thread.h" +#include "threadframe.h" +#include "pthread_internal.h" + +#include "videodsp.h" +#include "vp89_rac.h" +#include "vp9.h" +#include "vp9data.h" +#include "vp9dec.h" +#include "vpx_rac.h" +#include "libavutil/avassert.h" +#include "libavutil/pixdesc.h" +#include "libavutil/video_enc_params.h" + +#define VP9_SYNCCODE 0x498342 + +#if HAVE_THREADS +DEFINE_OFFSET_ARRAY(VP9Context, vp9_context, pthread_init_cnt, + (offsetof(VP9Context, progress_mutex)), + (offsetof(VP9Context, progress_cond))); + +static int vp9_alloc_entries(AVCodecContext *avctx, int n) { + VP9Context *s = avctx->priv_data; + int i; + + if (avctx->active_thread_type & FF_THREAD_SLICE) { + if (s->entries) + av_freep(&s->entries); + + s->entries = av_malloc_array(n, sizeof(atomic_int)); + if (!s->entries) + return AVERROR(ENOMEM); + + for (i = 0; i < n; i++) + atomic_init(&s->entries[i], 0); + } + return 0; +} + +static void vp9_report_tile_progress(VP9Context *s, int field, int n) { + pthread_mutex_lock(&s->progress_mutex); + atomic_fetch_add_explicit(&s->entries[field], n, memory_order_release); + pthread_cond_signal(&s->progress_cond); + pthread_mutex_unlock(&s->progress_mutex); +} + +static void vp9_await_tile_progress(VP9Context *s, int field, int n) { + if (atomic_load_explicit(&s->entries[field], memory_order_acquire) >= n) + return; + + pthread_mutex_lock(&s->progress_mutex); + while (atomic_load_explicit(&s->entries[field], memory_order_relaxed) != n) + pthread_cond_wait(&s->progress_cond, &s->progress_mutex); + pthread_mutex_unlock(&s->progress_mutex); +} +#else +static int vp9_alloc_entries(AVCodecContext *avctx, int n) { return 0; } +#endif + +static void vp9_tile_data_free(VP9TileData *td) +{ + av_freep(&td->b_base); + av_freep(&td->block_base); + av_freep(&td->block_structure); +} + +static void vp9_frame_unref(AVCodecContext *avctx, VP9Frame *f) +{ + ff_thread_release_ext_buffer(avctx, &f->tf); + av_buffer_unref(&f->extradata); + av_buffer_unref(&f->hwaccel_priv_buf); + f->segmentation_map = NULL; + f->hwaccel_picture_private = NULL; +} + +static int vp9_frame_alloc(AVCodecContext *avctx, VP9Frame *f) +{ + VP9Context *s = avctx->priv_data; + int ret, sz; + + ret = ff_thread_get_ext_buffer(avctx, &f->tf, AV_GET_BUFFER_FLAG_REF); + if (ret < 0) + return ret; + + sz = 64 * s->sb_cols * s->sb_rows; + if (sz != s->frame_extradata_pool_size) { + av_buffer_pool_uninit(&s->frame_extradata_pool); + s->frame_extradata_pool = av_buffer_pool_init(sz * (1 + sizeof(VP9mvrefPair)), NULL); + if (!s->frame_extradata_pool) { + s->frame_extradata_pool_size = 0; + goto fail; + } + s->frame_extradata_pool_size = sz; + } + f->extradata = av_buffer_pool_get(s->frame_extradata_pool); + if (!f->extradata) { + goto fail; + } + memset(f->extradata->data, 0, f->extradata->size); + + f->segmentation_map = f->extradata->data; + f->mv = (VP9mvrefPair *) (f->extradata->data + sz); + + if (avctx->hwaccel) { + const AVHWAccel *hwaccel = avctx->hwaccel; + av_assert0(!f->hwaccel_picture_private); + if (hwaccel->frame_priv_data_size) { + f->hwaccel_priv_buf = av_buffer_allocz(hwaccel->frame_priv_data_size); + if (!f->hwaccel_priv_buf) + goto fail; + f->hwaccel_picture_private = f->hwaccel_priv_buf->data; + } + } + + return 0; + +fail: + vp9_frame_unref(avctx, f); + return AVERROR(ENOMEM); +} + +static int vp9_frame_ref(AVCodecContext *avctx, VP9Frame *dst, VP9Frame *src) +{ + int ret; + + ret = ff_thread_ref_frame(&dst->tf, &src->tf); + if (ret < 0) + return ret; + + dst->extradata = av_buffer_ref(src->extradata); + if (!dst->extradata) + goto fail; + + dst->segmentation_map = src->segmentation_map; + dst->mv = src->mv; + dst->uses_2pass = src->uses_2pass; + + if (src->hwaccel_picture_private) { + dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf); + if (!dst->hwaccel_priv_buf) + goto fail; + dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data; + } + + return 0; + +fail: + vp9_frame_unref(avctx, dst); + return AVERROR(ENOMEM); +} + +static int update_size(AVCodecContext *avctx, int w, int h) +{ +#define HWACCEL_MAX (CONFIG_VP9_DXVA2_HWACCEL + \ + CONFIG_VP9_D3D11VA_HWACCEL * 2 + \ + CONFIG_VP9_NVDEC_HWACCEL + \ + CONFIG_VP9_VAAPI_HWACCEL + \ + CONFIG_VP9_VDPAU_HWACCEL + \ + CONFIG_VP9_VIDEOTOOLBOX_HWACCEL) + enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmtp = pix_fmts; + VP9Context *s = avctx->priv_data; + uint8_t *p; + int bytesperpixel = s->bytesperpixel, ret, cols, rows; + int lflvl_len, i; + + av_assert0(w > 0 && h > 0); + + if (!(s->pix_fmt == s->gf_fmt && w == s->w && h == s->h)) { + if ((ret = ff_set_dimensions(avctx, w, h)) < 0) + return ret; + + switch (s->pix_fmt) { + case AV_PIX_FMT_YUV420P: + case AV_PIX_FMT_YUV420P10: +#if CONFIG_VP9_DXVA2_HWACCEL + *fmtp++ = AV_PIX_FMT_DXVA2_VLD; +#endif +#if CONFIG_VP9_D3D11VA_HWACCEL + *fmtp++ = AV_PIX_FMT_D3D11VA_VLD; + *fmtp++ = AV_PIX_FMT_D3D11; +#endif +#if CONFIG_VP9_NVDEC_HWACCEL + *fmtp++ = AV_PIX_FMT_CUDA; +#endif +#if CONFIG_VP9_VAAPI_HWACCEL + *fmtp++ = AV_PIX_FMT_VAAPI; +#endif +#if CONFIG_VP9_VDPAU_HWACCEL + *fmtp++ = AV_PIX_FMT_VDPAU; +#endif +#if CONFIG_VP9_VIDEOTOOLBOX_HWACCEL + *fmtp++ = AV_PIX_FMT_VIDEOTOOLBOX; +#endif + break; + case AV_PIX_FMT_YUV420P12: +#if CONFIG_VP9_NVDEC_HWACCEL + *fmtp++ = AV_PIX_FMT_CUDA; +#endif +#if CONFIG_VP9_VAAPI_HWACCEL + *fmtp++ = AV_PIX_FMT_VAAPI; +#endif +#if CONFIG_VP9_VDPAU_HWACCEL + *fmtp++ = AV_PIX_FMT_VDPAU; +#endif + break; + case AV_PIX_FMT_YUV444P: + case AV_PIX_FMT_YUV444P10: + case AV_PIX_FMT_YUV444P12: +#if CONFIG_VP9_VAAPI_HWACCEL + *fmtp++ = AV_PIX_FMT_VAAPI; +#endif + break; + } + + *fmtp++ = s->pix_fmt; + *fmtp = AV_PIX_FMT_NONE; + + ret = ff_thread_get_format(avctx, pix_fmts); + if (ret < 0) + return ret; + + avctx->pix_fmt = ret; + s->gf_fmt = s->pix_fmt; + s->w = w; + s->h = h; + } + + cols = (w + 7) >> 3; + rows = (h + 7) >> 3; + + if (s->intra_pred_data[0] && cols == s->cols && rows == s->rows && s->pix_fmt == s->last_fmt) + return 0; + + s->last_fmt = s->pix_fmt; + s->sb_cols = (w + 63) >> 6; + s->sb_rows = (h + 63) >> 6; + s->cols = (w + 7) >> 3; + s->rows = (h + 7) >> 3; + lflvl_len = avctx->active_thread_type == FF_THREAD_SLICE ? s->sb_rows : 1; + +#define assign(var, type, n) var = (type) p; p += s->sb_cols * (n) * sizeof(*var) + av_freep(&s->intra_pred_data[0]); + // FIXME we slightly over-allocate here for subsampled chroma, but a little + // bit of padding shouldn't affect performance... + p = av_malloc(s->sb_cols * (128 + 192 * bytesperpixel + + lflvl_len * sizeof(*s->lflvl) + 16 * sizeof(*s->above_mv_ctx))); + if (!p) + return AVERROR(ENOMEM); + assign(s->intra_pred_data[0], uint8_t *, 64 * bytesperpixel); + assign(s->intra_pred_data[1], uint8_t *, 64 * bytesperpixel); + assign(s->intra_pred_data[2], uint8_t *, 64 * bytesperpixel); + assign(s->above_y_nnz_ctx, uint8_t *, 16); + assign(s->above_mode_ctx, uint8_t *, 16); + assign(s->above_mv_ctx, VP9mv(*)[2], 16); + assign(s->above_uv_nnz_ctx[0], uint8_t *, 16); + assign(s->above_uv_nnz_ctx[1], uint8_t *, 16); + assign(s->above_partition_ctx, uint8_t *, 8); + assign(s->above_skip_ctx, uint8_t *, 8); + assign(s->above_txfm_ctx, uint8_t *, 8); + assign(s->above_segpred_ctx, uint8_t *, 8); + assign(s->above_intra_ctx, uint8_t *, 8); + assign(s->above_comp_ctx, uint8_t *, 8); + assign(s->above_ref_ctx, uint8_t *, 8); + assign(s->above_filter_ctx, uint8_t *, 8); + assign(s->lflvl, VP9Filter *, lflvl_len); +#undef assign + + if (s->td) { + for (i = 0; i < s->active_tile_cols; i++) + vp9_tile_data_free(&s->td[i]); + } + + if (s->s.h.bpp != s->last_bpp) { + ff_vp9dsp_init(&s->dsp, s->s.h.bpp, avctx->flags & AV_CODEC_FLAG_BITEXACT); + ff_videodsp_init(&s->vdsp, s->s.h.bpp); + s->last_bpp = s->s.h.bpp; + } + + return 0; +} + +static int update_block_buffers(AVCodecContext *avctx) +{ + int i; + VP9Context *s = avctx->priv_data; + int chroma_blocks, chroma_eobs, bytesperpixel = s->bytesperpixel; + VP9TileData *td = &s->td[0]; + + if (td->b_base && td->block_base && s->block_alloc_using_2pass == s->s.frames[CUR_FRAME].uses_2pass) + return 0; + + vp9_tile_data_free(td); + chroma_blocks = 64 * 64 >> (s->ss_h + s->ss_v); + chroma_eobs = 16 * 16 >> (s->ss_h + s->ss_v); + if (s->s.frames[CUR_FRAME].uses_2pass) { + int sbs = s->sb_cols * s->sb_rows; + + td->b_base = av_malloc_array(s->cols * s->rows, sizeof(VP9Block)); + td->block_base = av_mallocz(((64 * 64 + 2 * chroma_blocks) * bytesperpixel * sizeof(int16_t) + + 16 * 16 + 2 * chroma_eobs) * sbs); + if (!td->b_base || !td->block_base) + return AVERROR(ENOMEM); + td->uvblock_base[0] = td->block_base + sbs * 64 * 64 * bytesperpixel; + td->uvblock_base[1] = td->uvblock_base[0] + sbs * chroma_blocks * bytesperpixel; + td->eob_base = (uint8_t *) (td->uvblock_base[1] + sbs * chroma_blocks * bytesperpixel); + td->uveob_base[0] = td->eob_base + 16 * 16 * sbs; + td->uveob_base[1] = td->uveob_base[0] + chroma_eobs * sbs; + + if (avctx->export_side_data & AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS) { + td->block_structure = av_malloc_array(s->cols * s->rows, sizeof(*td->block_structure)); + if (!td->block_structure) + return AVERROR(ENOMEM); + } + } else { + for (i = 1; i < s->active_tile_cols; i++) + vp9_tile_data_free(&s->td[i]); + + for (i = 0; i < s->active_tile_cols; i++) { + s->td[i].b_base = av_malloc(sizeof(VP9Block)); + s->td[i].block_base = av_mallocz((64 * 64 + 2 * chroma_blocks) * bytesperpixel * sizeof(int16_t) + + 16 * 16 + 2 * chroma_eobs); + if (!s->td[i].b_base || !s->td[i].block_base) + return AVERROR(ENOMEM); + s->td[i].uvblock_base[0] = s->td[i].block_base + 64 * 64 * bytesperpixel; + s->td[i].uvblock_base[1] = s->td[i].uvblock_base[0] + chroma_blocks * bytesperpixel; + s->td[i].eob_base = (uint8_t *) (s->td[i].uvblock_base[1] + chroma_blocks * bytesperpixel); + s->td[i].uveob_base[0] = s->td[i].eob_base + 16 * 16; + s->td[i].uveob_base[1] = s->td[i].uveob_base[0] + chroma_eobs; + + if (avctx->export_side_data & AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS) { + s->td[i].block_structure = av_malloc_array(s->cols * s->rows, sizeof(*td->block_structure)); + if (!s->td[i].block_structure) + return AVERROR(ENOMEM); + } + } + } + s->block_alloc_using_2pass = s->s.frames[CUR_FRAME].uses_2pass; + + return 0; +} + +// The sign bit is at the end, not the start, of a bit sequence +static av_always_inline int get_sbits_inv(GetBitContext *gb, int n) +{ + int v = get_bits(gb, n); + return get_bits1(gb) ? -v : v; +} + +static av_always_inline int inv_recenter_nonneg(int v, int m) +{ + if (v > 2 * m) + return v; + if (v & 1) + return m - ((v + 1) >> 1); + return m + (v >> 1); +} + +// differential forward probability updates +static int update_prob(VPXRangeCoder *c, int p) +{ + static const uint8_t inv_map_table[255] = { + 7, 20, 33, 46, 59, 72, 85, 98, 111, 124, 137, 150, 163, 176, + 189, 202, 215, 228, 241, 254, 1, 2, 3, 4, 5, 6, 8, 9, + 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, + 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 53, 54, + 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, + 70, 71, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, + 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 99, 100, + 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 112, 113, 114, 115, + 116, 117, 118, 119, 120, 121, 122, 123, 125, 126, 127, 128, 129, 130, + 131, 132, 133, 134, 135, 136, 138, 139, 140, 141, 142, 143, 144, 145, + 146, 147, 148, 149, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, + 161, 162, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, + 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 190, 191, + 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 203, 204, 205, 206, + 207, 208, 209, 210, 211, 212, 213, 214, 216, 217, 218, 219, 220, 221, + 222, 223, 224, 225, 226, 227, 229, 230, 231, 232, 233, 234, 235, 236, + 237, 238, 239, 240, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, + 252, 253, 253, + }; + int d; + + /* This code is trying to do a differential probability update. For a + * current probability A in the range [1, 255], the difference to a new + * probability of any value can be expressed differentially as 1-A, 255-A + * where some part of this (absolute range) exists both in positive as + * well as the negative part, whereas another part only exists in one + * half. We're trying to code this shared part differentially, i.e. + * times two where the value of the lowest bit specifies the sign, and + * the single part is then coded on top of this. This absolute difference + * then again has a value of [0, 254], but a bigger value in this range + * indicates that we're further away from the original value A, so we + * can code this as a VLC code, since higher values are increasingly + * unlikely. The first 20 values in inv_map_table[] allow 'cheap, rough' + * updates vs. the 'fine, exact' updates further down the range, which + * adds one extra dimension to this differential update model. */ + + if (!vp89_rac_get(c)) { + d = vp89_rac_get_uint(c, 4) + 0; + } else if (!vp89_rac_get(c)) { + d = vp89_rac_get_uint(c, 4) + 16; + } else if (!vp89_rac_get(c)) { + d = vp89_rac_get_uint(c, 5) + 32; + } else { + d = vp89_rac_get_uint(c, 7); + if (d >= 65) + d = (d << 1) - 65 + vp89_rac_get(c); + d += 64; + av_assert2(d < FF_ARRAY_ELEMS(inv_map_table)); + } + + return p <= 128 ? 1 + inv_recenter_nonneg(inv_map_table[d], p - 1) : + 255 - inv_recenter_nonneg(inv_map_table[d], 255 - p); +} + +static int read_colorspace_details(AVCodecContext *avctx) +{ + static const enum AVColorSpace colorspaces[8] = { + AVCOL_SPC_UNSPECIFIED, AVCOL_SPC_BT470BG, AVCOL_SPC_BT709, AVCOL_SPC_SMPTE170M, + AVCOL_SPC_SMPTE240M, AVCOL_SPC_BT2020_NCL, AVCOL_SPC_RESERVED, AVCOL_SPC_RGB, + }; + VP9Context *s = avctx->priv_data; + int bits = avctx->profile <= 1 ? 0 : 1 + get_bits1(&s->gb); // 0:8, 1:10, 2:12 + + s->bpp_index = bits; + s->s.h.bpp = 8 + bits * 2; + s->bytesperpixel = (7 + s->s.h.bpp) >> 3; + avctx->colorspace = colorspaces[get_bits(&s->gb, 3)]; + if (avctx->colorspace == AVCOL_SPC_RGB) { // RGB = profile 1 + static const enum AVPixelFormat pix_fmt_rgb[3] = { + AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12 + }; + s->ss_h = s->ss_v = 0; + avctx->color_range = AVCOL_RANGE_JPEG; + s->pix_fmt = pix_fmt_rgb[bits]; + if (avctx->profile & 1) { + if (get_bits1(&s->gb)) { + av_log(avctx, AV_LOG_ERROR, "Reserved bit set in RGB\n"); + return AVERROR_INVALIDDATA; + } + } else { + av_log(avctx, AV_LOG_ERROR, "RGB not supported in profile %d\n", + avctx->profile); + return AVERROR_INVALIDDATA; + } + } else { + static const enum AVPixelFormat pix_fmt_for_ss[3][2 /* v */][2 /* h */] = { + { { AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P }, + { AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV420P } }, + { { AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV422P10 }, + { AV_PIX_FMT_YUV440P10, AV_PIX_FMT_YUV420P10 } }, + { { AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12 }, + { AV_PIX_FMT_YUV440P12, AV_PIX_FMT_YUV420P12 } } + }; + avctx->color_range = get_bits1(&s->gb) ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG; + if (avctx->profile & 1) { + s->ss_h = get_bits1(&s->gb); + s->ss_v = get_bits1(&s->gb); + s->pix_fmt = pix_fmt_for_ss[bits][s->ss_v][s->ss_h]; + if (s->pix_fmt == AV_PIX_FMT_YUV420P) { + av_log(avctx, AV_LOG_ERROR, "YUV 4:2:0 not supported in profile %d\n", + avctx->profile); + return AVERROR_INVALIDDATA; + } else if (get_bits1(&s->gb)) { + av_log(avctx, AV_LOG_ERROR, "Profile %d color details reserved bit set\n", + avctx->profile); + return AVERROR_INVALIDDATA; + } + } else { + s->ss_h = s->ss_v = 1; + s->pix_fmt = pix_fmt_for_ss[bits][1][1]; + } + } + + return 0; +} + +static int decode_frame_header(AVCodecContext *avctx, + const uint8_t *data, int size, int *ref) +{ + VP9Context *s = avctx->priv_data; + int c, i, j, k, l, m, n, w, h, max, size2, ret, sharp; + int last_invisible; + const uint8_t *data2; + + /* general header */ + if ((ret = init_get_bits8(&s->gb, data, size)) < 0) { + av_log(avctx, AV_LOG_ERROR, "Failed to initialize bitstream reader\n"); + return ret; + } + if (get_bits(&s->gb, 2) != 0x2) { // frame marker + av_log(avctx, AV_LOG_ERROR, "Invalid frame marker\n"); + return AVERROR_INVALIDDATA; + } + avctx->profile = get_bits1(&s->gb); + avctx->profile |= get_bits1(&s->gb) << 1; + if (avctx->profile == 3) avctx->profile += get_bits1(&s->gb); + if (avctx->profile > 3) { + av_log(avctx, AV_LOG_ERROR, "Profile %d is not yet supported\n", avctx->profile); + return AVERROR_INVALIDDATA; + } + s->s.h.profile = avctx->profile; + if (get_bits1(&s->gb)) { + *ref = get_bits(&s->gb, 3); + return 0; + } + + s->last_keyframe = s->s.h.keyframe; + s->s.h.keyframe = !get_bits1(&s->gb); + + last_invisible = s->s.h.invisible; + s->s.h.invisible = !get_bits1(&s->gb); + s->s.h.errorres = get_bits1(&s->gb); + s->s.h.use_last_frame_mvs = !s->s.h.errorres && !last_invisible; + + if (s->s.h.keyframe) { + if (get_bits(&s->gb, 24) != VP9_SYNCCODE) { // synccode + av_log(avctx, AV_LOG_ERROR, "Invalid sync code\n"); + return AVERROR_INVALIDDATA; + } + if ((ret = read_colorspace_details(avctx)) < 0) + return ret; + // for profile 1, here follows the subsampling bits + s->s.h.refreshrefmask = 0xff; + w = get_bits(&s->gb, 16) + 1; + h = get_bits(&s->gb, 16) + 1; + if (get_bits1(&s->gb)) // display size + skip_bits(&s->gb, 32); + } else { + s->s.h.intraonly = s->s.h.invisible ? get_bits1(&s->gb) : 0; + s->s.h.resetctx = s->s.h.errorres ? 0 : get_bits(&s->gb, 2); + if (s->s.h.intraonly) { + if (get_bits(&s->gb, 24) != VP9_SYNCCODE) { // synccode + av_log(avctx, AV_LOG_ERROR, "Invalid sync code\n"); + return AVERROR_INVALIDDATA; + } + if (avctx->profile >= 1) { + if ((ret = read_colorspace_details(avctx)) < 0) + return ret; + } else { + s->ss_h = s->ss_v = 1; + s->s.h.bpp = 8; + s->bpp_index = 0; + s->bytesperpixel = 1; + s->pix_fmt = AV_PIX_FMT_YUV420P; + avctx->colorspace = AVCOL_SPC_BT470BG; + avctx->color_range = AVCOL_RANGE_MPEG; + } + s->s.h.refreshrefmask = get_bits(&s->gb, 8); + w = get_bits(&s->gb, 16) + 1; + h = get_bits(&s->gb, 16) + 1; + if (get_bits1(&s->gb)) // display size + skip_bits(&s->gb, 32); + } else { + s->s.h.refreshrefmask = get_bits(&s->gb, 8); + s->s.h.refidx[0] = get_bits(&s->gb, 3); + s->s.h.signbias[0] = get_bits1(&s->gb) && !s->s.h.errorres; + s->s.h.refidx[1] = get_bits(&s->gb, 3); + s->s.h.signbias[1] = get_bits1(&s->gb) && !s->s.h.errorres; + s->s.h.refidx[2] = get_bits(&s->gb, 3); + s->s.h.signbias[2] = get_bits1(&s->gb) && !s->s.h.errorres; + if (!s->s.refs[s->s.h.refidx[0]].f->buf[0] || + !s->s.refs[s->s.h.refidx[1]].f->buf[0] || + !s->s.refs[s->s.h.refidx[2]].f->buf[0]) { + av_log(avctx, AV_LOG_ERROR, "Not all references are available\n"); + return AVERROR_INVALIDDATA; + } + if (get_bits1(&s->gb)) { + w = s->s.refs[s->s.h.refidx[0]].f->width; + h = s->s.refs[s->s.h.refidx[0]].f->height; + } else if (get_bits1(&s->gb)) { + w = s->s.refs[s->s.h.refidx[1]].f->width; + h = s->s.refs[s->s.h.refidx[1]].f->height; + } else if (get_bits1(&s->gb)) { + w = s->s.refs[s->s.h.refidx[2]].f->width; + h = s->s.refs[s->s.h.refidx[2]].f->height; + } else { + w = get_bits(&s->gb, 16) + 1; + h = get_bits(&s->gb, 16) + 1; + } + // Note that in this code, "CUR_FRAME" is actually before we + // have formally allocated a frame, and thus actually represents + // the _last_ frame + s->s.h.use_last_frame_mvs &= s->s.frames[CUR_FRAME].tf.f->width == w && + s->s.frames[CUR_FRAME].tf.f->height == h; + if (get_bits1(&s->gb)) // display size + skip_bits(&s->gb, 32); + s->s.h.highprecisionmvs = get_bits1(&s->gb); + s->s.h.filtermode = get_bits1(&s->gb) ? FILTER_SWITCHABLE : + get_bits(&s->gb, 2); + s->s.h.allowcompinter = s->s.h.signbias[0] != s->s.h.signbias[1] || + s->s.h.signbias[0] != s->s.h.signbias[2]; + if (s->s.h.allowcompinter) { + if (s->s.h.signbias[0] == s->s.h.signbias[1]) { + s->s.h.fixcompref = 2; + s->s.h.varcompref[0] = 0; + s->s.h.varcompref[1] = 1; + } else if (s->s.h.signbias[0] == s->s.h.signbias[2]) { + s->s.h.fixcompref = 1; + s->s.h.varcompref[0] = 0; + s->s.h.varcompref[1] = 2; + } else { + s->s.h.fixcompref = 0; + s->s.h.varcompref[0] = 1; + s->s.h.varcompref[1] = 2; + } + } + } + } + s->s.h.refreshctx = s->s.h.errorres ? 0 : get_bits1(&s->gb); + s->s.h.parallelmode = s->s.h.errorres ? 1 : get_bits1(&s->gb); + s->s.h.framectxid = c = get_bits(&s->gb, 2); + if (s->s.h.keyframe || s->s.h.intraonly) + s->s.h.framectxid = 0; // BUG: libvpx ignores this field in keyframes + + /* loopfilter header data */ + if (s->s.h.keyframe || s->s.h.errorres || s->s.h.intraonly) { + // reset loopfilter defaults + s->s.h.lf_delta.ref[0] = 1; + s->s.h.lf_delta.ref[1] = 0; + s->s.h.lf_delta.ref[2] = -1; + s->s.h.lf_delta.ref[3] = -1; + s->s.h.lf_delta.mode[0] = 0; + s->s.h.lf_delta.mode[1] = 0; + memset(s->s.h.segmentation.feat, 0, sizeof(s->s.h.segmentation.feat)); + } + s->s.h.filter.level = get_bits(&s->gb, 6); + sharp = get_bits(&s->gb, 3); + // if sharpness changed, reinit lim/mblim LUTs. if it didn't change, keep + // the old cache values since they are still valid + if (s->s.h.filter.sharpness != sharp) { + for (i = 1; i <= 63; i++) { + int limit = i; + + if (sharp > 0) { + limit >>= (sharp + 3) >> 2; + limit = FFMIN(limit, 9 - sharp); + } + limit = FFMAX(limit, 1); + + s->filter_lut.lim_lut[i] = limit; + s->filter_lut.mblim_lut[i] = 2 * (i + 2) + limit; + } + } + s->s.h.filter.sharpness = sharp; + if ((s->s.h.lf_delta.enabled = get_bits1(&s->gb))) { + if ((s->s.h.lf_delta.updated = get_bits1(&s->gb))) { + for (i = 0; i < 4; i++) + if (get_bits1(&s->gb)) + s->s.h.lf_delta.ref[i] = get_sbits_inv(&s->gb, 6); + for (i = 0; i < 2; i++) + if (get_bits1(&s->gb)) + s->s.h.lf_delta.mode[i] = get_sbits_inv(&s->gb, 6); + } + } + + /* quantization header data */ + s->s.h.yac_qi = get_bits(&s->gb, 8); + s->s.h.ydc_qdelta = get_bits1(&s->gb) ? get_sbits_inv(&s->gb, 4) : 0; + s->s.h.uvdc_qdelta = get_bits1(&s->gb) ? get_sbits_inv(&s->gb, 4) : 0; + s->s.h.uvac_qdelta = get_bits1(&s->gb) ? get_sbits_inv(&s->gb, 4) : 0; + s->s.h.lossless = s->s.h.yac_qi == 0 && s->s.h.ydc_qdelta == 0 && + s->s.h.uvdc_qdelta == 0 && s->s.h.uvac_qdelta == 0; + if (s->s.h.lossless) + avctx->properties |= FF_CODEC_PROPERTY_LOSSLESS; + + /* segmentation header info */ + if ((s->s.h.segmentation.enabled = get_bits1(&s->gb))) { + if ((s->s.h.segmentation.update_map = get_bits1(&s->gb))) { + for (i = 0; i < 7; i++) + s->s.h.segmentation.prob[i] = get_bits1(&s->gb) ? + get_bits(&s->gb, 8) : 255; + if ((s->s.h.segmentation.temporal = get_bits1(&s->gb))) + for (i = 0; i < 3; i++) + s->s.h.segmentation.pred_prob[i] = get_bits1(&s->gb) ? + get_bits(&s->gb, 8) : 255; + } + + if (get_bits1(&s->gb)) { + s->s.h.segmentation.absolute_vals = get_bits1(&s->gb); + for (i = 0; i < 8; i++) { + if ((s->s.h.segmentation.feat[i].q_enabled = get_bits1(&s->gb))) + s->s.h.segmentation.feat[i].q_val = get_sbits_inv(&s->gb, 8); + if ((s->s.h.segmentation.feat[i].lf_enabled = get_bits1(&s->gb))) + s->s.h.segmentation.feat[i].lf_val = get_sbits_inv(&s->gb, 6); + if ((s->s.h.segmentation.feat[i].ref_enabled = get_bits1(&s->gb))) + s->s.h.segmentation.feat[i].ref_val = get_bits(&s->gb, 2); + s->s.h.segmentation.feat[i].skip_enabled = get_bits1(&s->gb); + } + } + } + + // set qmul[] based on Y/UV, AC/DC and segmentation Q idx deltas + for (i = 0; i < (s->s.h.segmentation.enabled ? 8 : 1); i++) { + int qyac, qydc, quvac, quvdc, lflvl, sh; + + if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[i].q_enabled) { + if (s->s.h.segmentation.absolute_vals) + qyac = av_clip_uintp2(s->s.h.segmentation.feat[i].q_val, 8); + else + qyac = av_clip_uintp2(s->s.h.yac_qi + s->s.h.segmentation.feat[i].q_val, 8); + } else { + qyac = s->s.h.yac_qi; + } + qydc = av_clip_uintp2(qyac + s->s.h.ydc_qdelta, 8); + quvdc = av_clip_uintp2(qyac + s->s.h.uvdc_qdelta, 8); + quvac = av_clip_uintp2(qyac + s->s.h.uvac_qdelta, 8); + qyac = av_clip_uintp2(qyac, 8); + + s->s.h.segmentation.feat[i].qmul[0][0] = ff_vp9_dc_qlookup[s->bpp_index][qydc]; + s->s.h.segmentation.feat[i].qmul[0][1] = ff_vp9_ac_qlookup[s->bpp_index][qyac]; + s->s.h.segmentation.feat[i].qmul[1][0] = ff_vp9_dc_qlookup[s->bpp_index][quvdc]; + s->s.h.segmentation.feat[i].qmul[1][1] = ff_vp9_ac_qlookup[s->bpp_index][quvac]; + + sh = s->s.h.filter.level >= 32; + if (s->s.h.segmentation.enabled && s->s.h.segmentation.feat[i].lf_enabled) { + if (s->s.h.segmentation.absolute_vals) + lflvl = av_clip_uintp2(s->s.h.segmentation.feat[i].lf_val, 6); + else + lflvl = av_clip_uintp2(s->s.h.filter.level + s->s.h.segmentation.feat[i].lf_val, 6); + } else { + lflvl = s->s.h.filter.level; + } + if (s->s.h.lf_delta.enabled) { + s->s.h.segmentation.feat[i].lflvl[0][0] = + s->s.h.segmentation.feat[i].lflvl[0][1] = + av_clip_uintp2(lflvl + (s->s.h.lf_delta.ref[0] * (1 << sh)), 6); + for (j = 1; j < 4; j++) { + s->s.h.segmentation.feat[i].lflvl[j][0] = + av_clip_uintp2(lflvl + ((s->s.h.lf_delta.ref[j] + + s->s.h.lf_delta.mode[0]) * (1 << sh)), 6); + s->s.h.segmentation.feat[i].lflvl[j][1] = + av_clip_uintp2(lflvl + ((s->s.h.lf_delta.ref[j] + + s->s.h.lf_delta.mode[1]) * (1 << sh)), 6); + } + } else { + memset(s->s.h.segmentation.feat[i].lflvl, lflvl, + sizeof(s->s.h.segmentation.feat[i].lflvl)); + } + } + + /* tiling info */ + if ((ret = update_size(avctx, w, h)) < 0) { + av_log(avctx, AV_LOG_ERROR, "Failed to initialize decoder for %dx%d @ %d\n", + w, h, s->pix_fmt); + return ret; + } + for (s->s.h.tiling.log2_tile_cols = 0; + s->sb_cols > (64 << s->s.h.tiling.log2_tile_cols); + s->s.h.tiling.log2_tile_cols++) ; + for (max = 0; (s->sb_cols >> max) >= 4; max++) ; + max = FFMAX(0, max - 1); + while (max > s->s.h.tiling.log2_tile_cols) { + if (get_bits1(&s->gb)) + s->s.h.tiling.log2_tile_cols++; + else + break; + } + s->s.h.tiling.log2_tile_rows = decode012(&s->gb); + s->s.h.tiling.tile_rows = 1 << s->s.h.tiling.log2_tile_rows; + if (s->s.h.tiling.tile_cols != (1 << s->s.h.tiling.log2_tile_cols)) { + int n_range_coders; + VPXRangeCoder *rc; + + if (s->td) { + for (i = 0; i < s->active_tile_cols; i++) + vp9_tile_data_free(&s->td[i]); + av_freep(&s->td); + } + + s->s.h.tiling.tile_cols = 1 << s->s.h.tiling.log2_tile_cols; + s->active_tile_cols = avctx->active_thread_type == FF_THREAD_SLICE ? + s->s.h.tiling.tile_cols : 1; + vp9_alloc_entries(avctx, s->sb_rows); + if (avctx->active_thread_type == FF_THREAD_SLICE) { + n_range_coders = 4; // max_tile_rows + } else { + n_range_coders = s->s.h.tiling.tile_cols; + } + s->td = av_calloc(s->active_tile_cols, sizeof(VP9TileData) + + n_range_coders * sizeof(VPXRangeCoder)); + if (!s->td) + return AVERROR(ENOMEM); + rc = (VPXRangeCoder *) &s->td[s->active_tile_cols]; + for (i = 0; i < s->active_tile_cols; i++) { + s->td[i].s = s; + s->td[i].c_b = rc; + rc += n_range_coders; + } + } + + /* check reference frames */ + if (!s->s.h.keyframe && !s->s.h.intraonly) { + int valid_ref_frame = 0; + for (i = 0; i < 3; i++) { + AVFrame *ref = s->s.refs[s->s.h.refidx[i]].f; + int refw = ref->width, refh = ref->height; + + if (ref->format != avctx->pix_fmt) { + av_log(avctx, AV_LOG_ERROR, + "Ref pixfmt (%s) did not match current frame (%s)", + av_get_pix_fmt_name(ref->format), + av_get_pix_fmt_name(avctx->pix_fmt)); + return AVERROR_INVALIDDATA; + } else if (refw == w && refh == h) { + s->mvscale[i][0] = s->mvscale[i][1] = 0; + } else { + /* Check to make sure at least one of frames that */ + /* this frame references has valid dimensions */ + if (w * 2 < refw || h * 2 < refh || w > 16 * refw || h > 16 * refh) { + av_log(avctx, AV_LOG_WARNING, + "Invalid ref frame dimensions %dx%d for frame size %dx%d\n", + refw, refh, w, h); + s->mvscale[i][0] = s->mvscale[i][1] = REF_INVALID_SCALE; + continue; + } + s->mvscale[i][0] = (refw << 14) / w; + s->mvscale[i][1] = (refh << 14) / h; + s->mvstep[i][0] = 16 * s->mvscale[i][0] >> 14; + s->mvstep[i][1] = 16 * s->mvscale[i][1] >> 14; + } + valid_ref_frame++; + } + if (!valid_ref_frame) { + av_log(avctx, AV_LOG_ERROR, "No valid reference frame is found, bitstream not supported\n"); + return AVERROR_INVALIDDATA; + } + } + + if (s->s.h.keyframe || s->s.h.errorres || (s->s.h.intraonly && s->s.h.resetctx == 3)) { + s->prob_ctx[0].p = s->prob_ctx[1].p = s->prob_ctx[2].p = + s->prob_ctx[3].p = ff_vp9_default_probs; + memcpy(s->prob_ctx[0].coef, ff_vp9_default_coef_probs, + sizeof(ff_vp9_default_coef_probs)); + memcpy(s->prob_ctx[1].coef, ff_vp9_default_coef_probs, + sizeof(ff_vp9_default_coef_probs)); + memcpy(s->prob_ctx[2].coef, ff_vp9_default_coef_probs, + sizeof(ff_vp9_default_coef_probs)); + memcpy(s->prob_ctx[3].coef, ff_vp9_default_coef_probs, + sizeof(ff_vp9_default_coef_probs)); + } else if (s->s.h.intraonly && s->s.h.resetctx == 2) { + s->prob_ctx[c].p = ff_vp9_default_probs; + memcpy(s->prob_ctx[c].coef, ff_vp9_default_coef_probs, + sizeof(ff_vp9_default_coef_probs)); + } + + // next 16 bits is size of the rest of the header (arith-coded) + s->s.h.compressed_header_size = size2 = get_bits(&s->gb, 16); + s->s.h.uncompressed_header_size = (get_bits_count(&s->gb) + 7) / 8; + + data2 = align_get_bits(&s->gb); + if (size2 > size - (data2 - data)) { + av_log(avctx, AV_LOG_ERROR, "Invalid compressed header size\n"); + return AVERROR_INVALIDDATA; + } + ret = ff_vpx_init_range_decoder(&s->c, data2, size2); + if (ret < 0) + return ret; + + if (vpx_rac_get_prob_branchy(&s->c, 128)) { // marker bit + av_log(avctx, AV_LOG_ERROR, "Marker bit was set\n"); + return AVERROR_INVALIDDATA; + } + + for (i = 0; i < s->active_tile_cols; i++) { + if (s->s.h.keyframe || s->s.h.intraonly) { + memset(s->td[i].counts.coef, 0, sizeof(s->td[0].counts.coef)); + memset(s->td[i].counts.eob, 0, sizeof(s->td[0].counts.eob)); + } else { + memset(&s->td[i].counts, 0, sizeof(s->td[0].counts)); + } + s->td[i].nb_block_structure = 0; + } + + /* FIXME is it faster to not copy here, but do it down in the fw updates + * as explicit copies if the fw update is missing (and skip the copy upon + * fw update)? */ + s->prob.p = s->prob_ctx[c].p; + + // txfm updates + if (s->s.h.lossless) { + s->s.h.txfmmode = TX_4X4; + } else { + s->s.h.txfmmode = vp89_rac_get_uint(&s->c, 2); + if (s->s.h.txfmmode == 3) + s->s.h.txfmmode += vp89_rac_get(&s->c); + + if (s->s.h.txfmmode == TX_SWITCHABLE) { + for (i = 0; i < 2; i++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.tx8p[i] = update_prob(&s->c, s->prob.p.tx8p[i]); + for (i = 0; i < 2; i++) + for (j = 0; j < 2; j++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.tx16p[i][j] = + update_prob(&s->c, s->prob.p.tx16p[i][j]); + for (i = 0; i < 2; i++) + for (j = 0; j < 3; j++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.tx32p[i][j] = + update_prob(&s->c, s->prob.p.tx32p[i][j]); + } + } + + // coef updates + for (i = 0; i < 4; i++) { + uint8_t (*ref)[2][6][6][3] = s->prob_ctx[c].coef[i]; + if (vp89_rac_get(&s->c)) { + for (j = 0; j < 2; j++) + for (k = 0; k < 2; k++) + for (l = 0; l < 6; l++) + for (m = 0; m < 6; m++) { + uint8_t *p = s->prob.coef[i][j][k][l][m]; + uint8_t *r = ref[j][k][l][m]; + if (m >= 3 && l == 0) // dc only has 3 pt + break; + for (n = 0; n < 3; n++) { + if (vpx_rac_get_prob_branchy(&s->c, 252)) + p[n] = update_prob(&s->c, r[n]); + else + p[n] = r[n]; + } + memcpy(&p[3], ff_vp9_model_pareto8[p[2]], 8); + } + } else { + for (j = 0; j < 2; j++) + for (k = 0; k < 2; k++) + for (l = 0; l < 6; l++) + for (m = 0; m < 6; m++) { + uint8_t *p = s->prob.coef[i][j][k][l][m]; + uint8_t *r = ref[j][k][l][m]; + if (m > 3 && l == 0) // dc only has 3 pt + break; + memcpy(p, r, 3); + memcpy(&p[3], ff_vp9_model_pareto8[p[2]], 8); + } + } + if (s->s.h.txfmmode == i) + break; + } + + // mode updates + for (i = 0; i < 3; i++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.skip[i] = update_prob(&s->c, s->prob.p.skip[i]); + if (!s->s.h.keyframe && !s->s.h.intraonly) { + for (i = 0; i < 7; i++) + for (j = 0; j < 3; j++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.mv_mode[i][j] = + update_prob(&s->c, s->prob.p.mv_mode[i][j]); + + if (s->s.h.filtermode == FILTER_SWITCHABLE) + for (i = 0; i < 4; i++) + for (j = 0; j < 2; j++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.filter[i][j] = + update_prob(&s->c, s->prob.p.filter[i][j]); + + for (i = 0; i < 4; i++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.intra[i] = update_prob(&s->c, s->prob.p.intra[i]); + + if (s->s.h.allowcompinter) { + s->s.h.comppredmode = vp89_rac_get(&s->c); + if (s->s.h.comppredmode) + s->s.h.comppredmode += vp89_rac_get(&s->c); + if (s->s.h.comppredmode == PRED_SWITCHABLE) + for (i = 0; i < 5; i++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.comp[i] = + update_prob(&s->c, s->prob.p.comp[i]); + } else { + s->s.h.comppredmode = PRED_SINGLEREF; + } + + if (s->s.h.comppredmode != PRED_COMPREF) { + for (i = 0; i < 5; i++) { + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.single_ref[i][0] = + update_prob(&s->c, s->prob.p.single_ref[i][0]); + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.single_ref[i][1] = + update_prob(&s->c, s->prob.p.single_ref[i][1]); + } + } + + if (s->s.h.comppredmode != PRED_SINGLEREF) { + for (i = 0; i < 5; i++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.comp_ref[i] = + update_prob(&s->c, s->prob.p.comp_ref[i]); + } + + for (i = 0; i < 4; i++) + for (j = 0; j < 9; j++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.y_mode[i][j] = + update_prob(&s->c, s->prob.p.y_mode[i][j]); + + for (i = 0; i < 4; i++) + for (j = 0; j < 4; j++) + for (k = 0; k < 3; k++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.partition[3 - i][j][k] = + update_prob(&s->c, + s->prob.p.partition[3 - i][j][k]); + + // mv fields don't use the update_prob subexp model for some reason + for (i = 0; i < 3; i++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.mv_joint[i] = (vp89_rac_get_uint(&s->c, 7) << 1) | 1; + + for (i = 0; i < 2; i++) { + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.mv_comp[i].sign = + (vp89_rac_get_uint(&s->c, 7) << 1) | 1; + + for (j = 0; j < 10; j++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.mv_comp[i].classes[j] = + (vp89_rac_get_uint(&s->c, 7) << 1) | 1; + + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.mv_comp[i].class0 = + (vp89_rac_get_uint(&s->c, 7) << 1) | 1; + + for (j = 0; j < 10; j++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.mv_comp[i].bits[j] = + (vp89_rac_get_uint(&s->c, 7) << 1) | 1; + } + + for (i = 0; i < 2; i++) { + for (j = 0; j < 2; j++) + for (k = 0; k < 3; k++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.mv_comp[i].class0_fp[j][k] = + (vp89_rac_get_uint(&s->c, 7) << 1) | 1; + + for (j = 0; j < 3; j++) + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.mv_comp[i].fp[j] = + (vp89_rac_get_uint(&s->c, 7) << 1) | 1; + } + + if (s->s.h.highprecisionmvs) { + for (i = 0; i < 2; i++) { + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.mv_comp[i].class0_hp = + (vp89_rac_get_uint(&s->c, 7) << 1) | 1; + + if (vpx_rac_get_prob_branchy(&s->c, 252)) + s->prob.p.mv_comp[i].hp = + (vp89_rac_get_uint(&s->c, 7) << 1) | 1; + } + } + } + + return (data2 - data) + size2; +} + +static void decode_sb(VP9TileData *td, int row, int col, VP9Filter *lflvl, + ptrdiff_t yoff, ptrdiff_t uvoff, enum BlockLevel bl) +{ + const VP9Context *s = td->s; + int c = ((s->above_partition_ctx[col] >> (3 - bl)) & 1) | + (((td->left_partition_ctx[row & 0x7] >> (3 - bl)) & 1) << 1); + const uint8_t *p = s->s.h.keyframe || s->s.h.intraonly ? ff_vp9_default_kf_partition_probs[bl][c] : + s->prob.p.partition[bl][c]; + enum BlockPartition bp; + ptrdiff_t hbs = 4 >> bl; + AVFrame *f = s->s.frames[CUR_FRAME].tf.f; + ptrdiff_t y_stride = f->linesize[0], uv_stride = f->linesize[1]; + int bytesperpixel = s->bytesperpixel; + + if (bl == BL_8X8) { + bp = vp89_rac_get_tree(td->c, ff_vp9_partition_tree, p); + ff_vp9_decode_block(td, row, col, lflvl, yoff, uvoff, bl, bp); + } else if (col + hbs < s->cols) { // FIXME why not <=? + if (row + hbs < s->rows) { // FIXME why not <=? + bp = vp89_rac_get_tree(td->c, ff_vp9_partition_tree, p); + switch (bp) { + case PARTITION_NONE: + ff_vp9_decode_block(td, row, col, lflvl, yoff, uvoff, bl, bp); + break; + case PARTITION_H: + ff_vp9_decode_block(td, row, col, lflvl, yoff, uvoff, bl, bp); + yoff += hbs * 8 * y_stride; + uvoff += hbs * 8 * uv_stride >> s->ss_v; + ff_vp9_decode_block(td, row + hbs, col, lflvl, yoff, uvoff, bl, bp); + break; + case PARTITION_V: + ff_vp9_decode_block(td, row, col, lflvl, yoff, uvoff, bl, bp); + yoff += hbs * 8 * bytesperpixel; + uvoff += hbs * 8 * bytesperpixel >> s->ss_h; + ff_vp9_decode_block(td, row, col + hbs, lflvl, yoff, uvoff, bl, bp); + break; + case PARTITION_SPLIT: + decode_sb(td, row, col, lflvl, yoff, uvoff, bl + 1); + decode_sb(td, row, col + hbs, lflvl, + yoff + 8 * hbs * bytesperpixel, + uvoff + (8 * hbs * bytesperpixel >> s->ss_h), bl + 1); + yoff += hbs * 8 * y_stride; + uvoff += hbs * 8 * uv_stride >> s->ss_v; + decode_sb(td, row + hbs, col, lflvl, yoff, uvoff, bl + 1); + decode_sb(td, row + hbs, col + hbs, lflvl, + yoff + 8 * hbs * bytesperpixel, + uvoff + (8 * hbs * bytesperpixel >> s->ss_h), bl + 1); + break; + default: + av_assert0(0); + } + } else if (vpx_rac_get_prob_branchy(td->c, p[1])) { + bp = PARTITION_SPLIT; + decode_sb(td, row, col, lflvl, yoff, uvoff, bl + 1); + decode_sb(td, row, col + hbs, lflvl, + yoff + 8 * hbs * bytesperpixel, + uvoff + (8 * hbs * bytesperpixel >> s->ss_h), bl + 1); + } else { + bp = PARTITION_H; + ff_vp9_decode_block(td, row, col, lflvl, yoff, uvoff, bl, bp); + } + } else if (row + hbs < s->rows) { // FIXME why not <=? + if (vpx_rac_get_prob_branchy(td->c, p[2])) { + bp = PARTITION_SPLIT; + decode_sb(td, row, col, lflvl, yoff, uvoff, bl + 1); + yoff += hbs * 8 * y_stride; + uvoff += hbs * 8 * uv_stride >> s->ss_v; + decode_sb(td, row + hbs, col, lflvl, yoff, uvoff, bl + 1); + } else { + bp = PARTITION_V; + ff_vp9_decode_block(td, row, col, lflvl, yoff, uvoff, bl, bp); + } + } else { + bp = PARTITION_SPLIT; + decode_sb(td, row, col, lflvl, yoff, uvoff, bl + 1); + } + td->counts.partition[bl][c][bp]++; +} + +static void decode_sb_mem(VP9TileData *td, int row, int col, VP9Filter *lflvl, + ptrdiff_t yoff, ptrdiff_t uvoff, enum BlockLevel bl) +{ + const VP9Context *s = td->s; + VP9Block *b = td->b; + ptrdiff_t hbs = 4 >> bl; + AVFrame *f = s->s.frames[CUR_FRAME].tf.f; + ptrdiff_t y_stride = f->linesize[0], uv_stride = f->linesize[1]; + int bytesperpixel = s->bytesperpixel; + + if (bl == BL_8X8) { + av_assert2(b->bl == BL_8X8); + ff_vp9_decode_block(td, row, col, lflvl, yoff, uvoff, b->bl, b->bp); + } else if (td->b->bl == bl) { + ff_vp9_decode_block(td, row, col, lflvl, yoff, uvoff, b->bl, b->bp); + if (b->bp == PARTITION_H && row + hbs < s->rows) { + yoff += hbs * 8 * y_stride; + uvoff += hbs * 8 * uv_stride >> s->ss_v; + ff_vp9_decode_block(td, row + hbs, col, lflvl, yoff, uvoff, b->bl, b->bp); + } else if (b->bp == PARTITION_V && col + hbs < s->cols) { + yoff += hbs * 8 * bytesperpixel; + uvoff += hbs * 8 * bytesperpixel >> s->ss_h; + ff_vp9_decode_block(td, row, col + hbs, lflvl, yoff, uvoff, b->bl, b->bp); + } + } else { + decode_sb_mem(td, row, col, lflvl, yoff, uvoff, bl + 1); + if (col + hbs < s->cols) { // FIXME why not <=? + if (row + hbs < s->rows) { + decode_sb_mem(td, row, col + hbs, lflvl, yoff + 8 * hbs * bytesperpixel, + uvoff + (8 * hbs * bytesperpixel >> s->ss_h), bl + 1); + yoff += hbs * 8 * y_stride; + uvoff += hbs * 8 * uv_stride >> s->ss_v; + decode_sb_mem(td, row + hbs, col, lflvl, yoff, uvoff, bl + 1); + decode_sb_mem(td, row + hbs, col + hbs, lflvl, + yoff + 8 * hbs * bytesperpixel, + uvoff + (8 * hbs * bytesperpixel >> s->ss_h), bl + 1); + } else { + yoff += hbs * 8 * bytesperpixel; + uvoff += hbs * 8 * bytesperpixel >> s->ss_h; + decode_sb_mem(td, row, col + hbs, lflvl, yoff, uvoff, bl + 1); + } + } else if (row + hbs < s->rows) { + yoff += hbs * 8 * y_stride; + uvoff += hbs * 8 * uv_stride >> s->ss_v; + decode_sb_mem(td, row + hbs, col, lflvl, yoff, uvoff, bl + 1); + } + } +} + +static void set_tile_offset(int *start, int *end, int idx, int log2_n, int n) +{ + int sb_start = ( idx * n) >> log2_n; + int sb_end = ((idx + 1) * n) >> log2_n; + *start = FFMIN(sb_start, n) << 3; + *end = FFMIN(sb_end, n) << 3; +} + +static void free_buffers(VP9Context *s) +{ + int i; + + av_freep(&s->intra_pred_data[0]); + for (i = 0; i < s->active_tile_cols; i++) + vp9_tile_data_free(&s->td[i]); +} + +static av_cold int vp9_decode_free(AVCodecContext *avctx) +{ + VP9Context *s = avctx->priv_data; + int i; + + for (i = 0; i < 3; i++) { + vp9_frame_unref(avctx, &s->s.frames[i]); + av_frame_free(&s->s.frames[i].tf.f); + } + av_buffer_pool_uninit(&s->frame_extradata_pool); + for (i = 0; i < 8; i++) { + ff_thread_release_ext_buffer(avctx, &s->s.refs[i]); + av_frame_free(&s->s.refs[i].f); + ff_thread_release_ext_buffer(avctx, &s->next_refs[i]); + av_frame_free(&s->next_refs[i].f); + } + + free_buffers(s); +#if HAVE_THREADS + av_freep(&s->entries); + ff_pthread_free(s, vp9_context_offsets); +#endif + av_freep(&s->td); + return 0; +} + +static int decode_tiles(AVCodecContext *avctx, + const uint8_t *data, int size) +{ + VP9Context *s = avctx->priv_data; + VP9TileData *td = &s->td[0]; + int row, col, tile_row, tile_col, ret; + int bytesperpixel; + int tile_row_start, tile_row_end, tile_col_start, tile_col_end; + AVFrame *f; + ptrdiff_t yoff, uvoff, ls_y, ls_uv; + + f = s->s.frames[CUR_FRAME].tf.f; + ls_y = f->linesize[0]; + ls_uv =f->linesize[1]; + bytesperpixel = s->bytesperpixel; + + yoff = uvoff = 0; + for (tile_row = 0; tile_row < s->s.h.tiling.tile_rows; tile_row++) { + set_tile_offset(&tile_row_start, &tile_row_end, + tile_row, s->s.h.tiling.log2_tile_rows, s->sb_rows); + + for (tile_col = 0; tile_col < s->s.h.tiling.tile_cols; tile_col++) { + int64_t tile_size; + + if (tile_col == s->s.h.tiling.tile_cols - 1 && + tile_row == s->s.h.tiling.tile_rows - 1) { + tile_size = size; + } else { + tile_size = AV_RB32(data); + data += 4; + size -= 4; + } + if (tile_size > size) + return AVERROR_INVALIDDATA; + ret = ff_vpx_init_range_decoder(&td->c_b[tile_col], data, tile_size); + if (ret < 0) + return ret; + if (vpx_rac_get_prob_branchy(&td->c_b[tile_col], 128)) // marker bit + return AVERROR_INVALIDDATA; + data += tile_size; + size -= tile_size; + } + + for (row = tile_row_start; row < tile_row_end; + row += 8, yoff += ls_y * 64, uvoff += ls_uv * 64 >> s->ss_v) { + VP9Filter *lflvl_ptr = s->lflvl; + ptrdiff_t yoff2 = yoff, uvoff2 = uvoff; + + for (tile_col = 0; tile_col < s->s.h.tiling.tile_cols; tile_col++) { + set_tile_offset(&tile_col_start, &tile_col_end, + tile_col, s->s.h.tiling.log2_tile_cols, s->sb_cols); + td->tile_col_start = tile_col_start; + if (s->pass != 2) { + memset(td->left_partition_ctx, 0, 8); + memset(td->left_skip_ctx, 0, 8); + if (s->s.h.keyframe || s->s.h.intraonly) { + memset(td->left_mode_ctx, DC_PRED, 16); + } else { + memset(td->left_mode_ctx, NEARESTMV, 8); + } + memset(td->left_y_nnz_ctx, 0, 16); + memset(td->left_uv_nnz_ctx, 0, 32); + memset(td->left_segpred_ctx, 0, 8); + + td->c = &td->c_b[tile_col]; + } + + for (col = tile_col_start; + col < tile_col_end; + col += 8, yoff2 += 64 * bytesperpixel, + uvoff2 += 64 * bytesperpixel >> s->ss_h, lflvl_ptr++) { + // FIXME integrate with lf code (i.e. zero after each + // use, similar to invtxfm coefficients, or similar) + if (s->pass != 1) { + memset(lflvl_ptr->mask, 0, sizeof(lflvl_ptr->mask)); + } + + if (s->pass == 2) { + decode_sb_mem(td, row, col, lflvl_ptr, + yoff2, uvoff2, BL_64X64); + } else { + if (vpx_rac_is_end(td->c)) { + return AVERROR_INVALIDDATA; + } + decode_sb(td, row, col, lflvl_ptr, + yoff2, uvoff2, BL_64X64); + } + } + } + + if (s->pass == 1) + continue; + + // backup pre-loopfilter reconstruction data for intra + // prediction of next row of sb64s + if (row + 8 < s->rows) { + memcpy(s->intra_pred_data[0], + f->data[0] + yoff + 63 * ls_y, + 8 * s->cols * bytesperpixel); + memcpy(s->intra_pred_data[1], + f->data[1] + uvoff + ((64 >> s->ss_v) - 1) * ls_uv, + 8 * s->cols * bytesperpixel >> s->ss_h); + memcpy(s->intra_pred_data[2], + f->data[2] + uvoff + ((64 >> s->ss_v) - 1) * ls_uv, + 8 * s->cols * bytesperpixel >> s->ss_h); + } + + // loopfilter one row + if (s->s.h.filter.level) { + yoff2 = yoff; + uvoff2 = uvoff; + lflvl_ptr = s->lflvl; + for (col = 0; col < s->cols; + col += 8, yoff2 += 64 * bytesperpixel, + uvoff2 += 64 * bytesperpixel >> s->ss_h, lflvl_ptr++) { + ff_vp9_loopfilter_sb(avctx, lflvl_ptr, row, col, + yoff2, uvoff2); + } + } + + // FIXME maybe we can make this more finegrained by running the + // loopfilter per-block instead of after each sbrow + // In fact that would also make intra pred left preparation easier? + ff_thread_report_progress(&s->s.frames[CUR_FRAME].tf, row >> 3, 0); + } + } + return 0; +} + +#if HAVE_THREADS +static av_always_inline +int decode_tiles_mt(AVCodecContext *avctx, void *tdata, int jobnr, + int threadnr) +{ + VP9Context *s = avctx->priv_data; + VP9TileData *td = &s->td[jobnr]; + ptrdiff_t uvoff, yoff, ls_y, ls_uv; + int bytesperpixel = s->bytesperpixel, row, col, tile_row; + unsigned tile_cols_len; + int tile_row_start, tile_row_end, tile_col_start, tile_col_end; + VP9Filter *lflvl_ptr_base; + AVFrame *f; + + f = s->s.frames[CUR_FRAME].tf.f; + ls_y = f->linesize[0]; + ls_uv =f->linesize[1]; + + set_tile_offset(&tile_col_start, &tile_col_end, + jobnr, s->s.h.tiling.log2_tile_cols, s->sb_cols); + td->tile_col_start = tile_col_start; + uvoff = (64 * bytesperpixel >> s->ss_h)*(tile_col_start >> 3); + yoff = (64 * bytesperpixel)*(tile_col_start >> 3); + lflvl_ptr_base = s->lflvl+(tile_col_start >> 3); + + for (tile_row = 0; tile_row < s->s.h.tiling.tile_rows; tile_row++) { + set_tile_offset(&tile_row_start, &tile_row_end, + tile_row, s->s.h.tiling.log2_tile_rows, s->sb_rows); + + td->c = &td->c_b[tile_row]; + for (row = tile_row_start; row < tile_row_end; + row += 8, yoff += ls_y * 64, uvoff += ls_uv * 64 >> s->ss_v) { + ptrdiff_t yoff2 = yoff, uvoff2 = uvoff; + VP9Filter *lflvl_ptr = lflvl_ptr_base+s->sb_cols*(row >> 3); + + memset(td->left_partition_ctx, 0, 8); + memset(td->left_skip_ctx, 0, 8); + if (s->s.h.keyframe || s->s.h.intraonly) { + memset(td->left_mode_ctx, DC_PRED, 16); + } else { + memset(td->left_mode_ctx, NEARESTMV, 8); + } + memset(td->left_y_nnz_ctx, 0, 16); + memset(td->left_uv_nnz_ctx, 0, 32); + memset(td->left_segpred_ctx, 0, 8); + + for (col = tile_col_start; + col < tile_col_end; + col += 8, yoff2 += 64 * bytesperpixel, + uvoff2 += 64 * bytesperpixel >> s->ss_h, lflvl_ptr++) { + // FIXME integrate with lf code (i.e. zero after each + // use, similar to invtxfm coefficients, or similar) + memset(lflvl_ptr->mask, 0, sizeof(lflvl_ptr->mask)); + decode_sb(td, row, col, lflvl_ptr, + yoff2, uvoff2, BL_64X64); + } + + // backup pre-loopfilter reconstruction data for intra + // prediction of next row of sb64s + tile_cols_len = tile_col_end - tile_col_start; + if (row + 8 < s->rows) { + memcpy(s->intra_pred_data[0] + (tile_col_start * 8 * bytesperpixel), + f->data[0] + yoff + 63 * ls_y, + 8 * tile_cols_len * bytesperpixel); + memcpy(s->intra_pred_data[1] + (tile_col_start * 8 * bytesperpixel >> s->ss_h), + f->data[1] + uvoff + ((64 >> s->ss_v) - 1) * ls_uv, + 8 * tile_cols_len * bytesperpixel >> s->ss_h); + memcpy(s->intra_pred_data[2] + (tile_col_start * 8 * bytesperpixel >> s->ss_h), + f->data[2] + uvoff + ((64 >> s->ss_v) - 1) * ls_uv, + 8 * tile_cols_len * bytesperpixel >> s->ss_h); + } + + vp9_report_tile_progress(s, row >> 3, 1); + } + } + return 0; +} + +static av_always_inline +int loopfilter_proc(AVCodecContext *avctx) +{ + VP9Context *s = avctx->priv_data; + ptrdiff_t uvoff, yoff, ls_y, ls_uv; + VP9Filter *lflvl_ptr; + int bytesperpixel = s->bytesperpixel, col, i; + AVFrame *f; + + f = s->s.frames[CUR_FRAME].tf.f; + ls_y = f->linesize[0]; + ls_uv =f->linesize[1]; + + for (i = 0; i < s->sb_rows; i++) { + vp9_await_tile_progress(s, i, s->s.h.tiling.tile_cols); + + if (s->s.h.filter.level) { + yoff = (ls_y * 64)*i; + uvoff = (ls_uv * 64 >> s->ss_v)*i; + lflvl_ptr = s->lflvl+s->sb_cols*i; + for (col = 0; col < s->cols; + col += 8, yoff += 64 * bytesperpixel, + uvoff += 64 * bytesperpixel >> s->ss_h, lflvl_ptr++) { + ff_vp9_loopfilter_sb(avctx, lflvl_ptr, i << 3, col, + yoff, uvoff); + } + } + } + return 0; +} +#endif + +static int vp9_export_enc_params(VP9Context *s, VP9Frame *frame) +{ + AVVideoEncParams *par; + unsigned int tile, nb_blocks = 0; + + if (s->s.h.segmentation.enabled) { + for (tile = 0; tile < s->active_tile_cols; tile++) + nb_blocks += s->td[tile].nb_block_structure; + } + + par = av_video_enc_params_create_side_data(frame->tf.f, + AV_VIDEO_ENC_PARAMS_VP9, nb_blocks); + if (!par) + return AVERROR(ENOMEM); + + par->qp = s->s.h.yac_qi; + par->delta_qp[0][0] = s->s.h.ydc_qdelta; + par->delta_qp[1][0] = s->s.h.uvdc_qdelta; + par->delta_qp[2][0] = s->s.h.uvdc_qdelta; + par->delta_qp[1][1] = s->s.h.uvac_qdelta; + par->delta_qp[2][1] = s->s.h.uvac_qdelta; + + if (nb_blocks) { + unsigned int block = 0; + unsigned int tile, block_tile; + + for (tile = 0; tile < s->active_tile_cols; tile++) { + VP9TileData *td = &s->td[tile]; + + for (block_tile = 0; block_tile < td->nb_block_structure; block_tile++) { + AVVideoBlockParams *b = av_video_enc_params_block(par, block++); + unsigned int row = td->block_structure[block_tile].row; + unsigned int col = td->block_structure[block_tile].col; + uint8_t seg_id = frame->segmentation_map[row * 8 * s->sb_cols + col]; + + b->src_x = col * 8; + b->src_y = row * 8; + b->w = 1 << (3 + td->block_structure[block_tile].block_size_idx_x); + b->h = 1 << (3 + td->block_structure[block_tile].block_size_idx_y); + + if (s->s.h.segmentation.feat[seg_id].q_enabled) { + b->delta_qp = s->s.h.segmentation.feat[seg_id].q_val; + if (s->s.h.segmentation.absolute_vals) + b->delta_qp -= par->qp; + } + } + } + } + + return 0; +} + +static int vp9_decode_frame(AVCodecContext *avctx, AVFrame *frame, + int *got_frame, AVPacket *pkt) +{ + const uint8_t *data = pkt->data; + int size = pkt->size; + VP9Context *s = avctx->priv_data; + int ret, i, j, ref; + int retain_segmap_ref = s->s.frames[REF_FRAME_SEGMAP].segmentation_map && + (!s->s.h.segmentation.enabled || !s->s.h.segmentation.update_map); + AVFrame *f; + + if ((ret = decode_frame_header(avctx, data, size, &ref)) < 0) { + return ret; + } else if (ret == 0) { + if (!s->s.refs[ref].f->buf[0]) { + av_log(avctx, AV_LOG_ERROR, "Requested reference %d not available\n", ref); + return AVERROR_INVALIDDATA; + } + if ((ret = av_frame_ref(frame, s->s.refs[ref].f)) < 0) + return ret; + frame->pts = pkt->pts; + frame->pkt_dts = pkt->dts; + for (i = 0; i < 8; i++) { + if (s->next_refs[i].f->buf[0]) + ff_thread_release_ext_buffer(avctx, &s->next_refs[i]); + if (s->s.refs[i].f->buf[0] && + (ret = ff_thread_ref_frame(&s->next_refs[i], &s->s.refs[i])) < 0) + return ret; + } + *got_frame = 1; + return pkt->size; + } + data += ret; + size -= ret; + + if (!retain_segmap_ref || s->s.h.keyframe || s->s.h.intraonly) { + if (s->s.frames[REF_FRAME_SEGMAP].tf.f->buf[0]) + vp9_frame_unref(avctx, &s->s.frames[REF_FRAME_SEGMAP]); + if (!s->s.h.keyframe && !s->s.h.intraonly && !s->s.h.errorres && s->s.frames[CUR_FRAME].tf.f->buf[0] && + (ret = vp9_frame_ref(avctx, &s->s.frames[REF_FRAME_SEGMAP], &s->s.frames[CUR_FRAME])) < 0) + return ret; + } + if (s->s.frames[REF_FRAME_MVPAIR].tf.f->buf[0]) + vp9_frame_unref(avctx, &s->s.frames[REF_FRAME_MVPAIR]); + if (!s->s.h.intraonly && !s->s.h.keyframe && !s->s.h.errorres && s->s.frames[CUR_FRAME].tf.f->buf[0] && + (ret = vp9_frame_ref(avctx, &s->s.frames[REF_FRAME_MVPAIR], &s->s.frames[CUR_FRAME])) < 0) + return ret; + if (s->s.frames[CUR_FRAME].tf.f->buf[0]) + vp9_frame_unref(avctx, &s->s.frames[CUR_FRAME]); + if ((ret = vp9_frame_alloc(avctx, &s->s.frames[CUR_FRAME])) < 0) + return ret; + f = s->s.frames[CUR_FRAME].tf.f; + f->key_frame = s->s.h.keyframe; + f->pict_type = (s->s.h.keyframe || s->s.h.intraonly) ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P; + + if (s->s.frames[REF_FRAME_SEGMAP].tf.f->buf[0] && + (s->s.frames[REF_FRAME_MVPAIR].tf.f->width != s->s.frames[CUR_FRAME].tf.f->width || + s->s.frames[REF_FRAME_MVPAIR].tf.f->height != s->s.frames[CUR_FRAME].tf.f->height)) { + vp9_frame_unref(avctx, &s->s.frames[REF_FRAME_SEGMAP]); + } + + // ref frame setup + for (i = 0; i < 8; i++) { + if (s->next_refs[i].f->buf[0]) + ff_thread_release_ext_buffer(avctx, &s->next_refs[i]); + if (s->s.h.refreshrefmask & (1 << i)) { + ret = ff_thread_ref_frame(&s->next_refs[i], &s->s.frames[CUR_FRAME].tf); + } else if (s->s.refs[i].f->buf[0]) { + ret = ff_thread_ref_frame(&s->next_refs[i], &s->s.refs[i]); + } + if (ret < 0) + return ret; + } + + if (avctx->hwaccel) { + ret = avctx->hwaccel->start_frame(avctx, NULL, 0); + if (ret < 0) + return ret; + ret = avctx->hwaccel->decode_slice(avctx, pkt->data, pkt->size); + if (ret < 0) + return ret; + ret = avctx->hwaccel->end_frame(avctx); + if (ret < 0) + return ret; + goto finish; + } + + // main tile decode loop + memset(s->above_partition_ctx, 0, s->cols); + memset(s->above_skip_ctx, 0, s->cols); + if (s->s.h.keyframe || s->s.h.intraonly) { + memset(s->above_mode_ctx, DC_PRED, s->cols * 2); + } else { + memset(s->above_mode_ctx, NEARESTMV, s->cols); + } + memset(s->above_y_nnz_ctx, 0, s->sb_cols * 16); + memset(s->above_uv_nnz_ctx[0], 0, s->sb_cols * 16 >> s->ss_h); + memset(s->above_uv_nnz_ctx[1], 0, s->sb_cols * 16 >> s->ss_h); + memset(s->above_segpred_ctx, 0, s->cols); + s->pass = s->s.frames[CUR_FRAME].uses_2pass = + avctx->active_thread_type == FF_THREAD_FRAME && s->s.h.refreshctx && !s->s.h.parallelmode; + if ((ret = update_block_buffers(avctx)) < 0) { + av_log(avctx, AV_LOG_ERROR, + "Failed to allocate block buffers\n"); + return ret; + } + if (s->s.h.refreshctx && s->s.h.parallelmode) { + int j, k, l, m; + + for (i = 0; i < 4; i++) { + for (j = 0; j < 2; j++) + for (k = 0; k < 2; k++) + for (l = 0; l < 6; l++) + for (m = 0; m < 6; m++) + memcpy(s->prob_ctx[s->s.h.framectxid].coef[i][j][k][l][m], + s->prob.coef[i][j][k][l][m], 3); + if (s->s.h.txfmmode == i) + break; + } + s->prob_ctx[s->s.h.framectxid].p = s->prob.p; + ff_thread_finish_setup(avctx); + } else if (!s->s.h.refreshctx) { + ff_thread_finish_setup(avctx); + } + +#if HAVE_THREADS + if (avctx->active_thread_type & FF_THREAD_SLICE) { + for (i = 0; i < s->sb_rows; i++) + atomic_store(&s->entries[i], 0); + } +#endif + + do { + for (i = 0; i < s->active_tile_cols; i++) { + s->td[i].b = s->td[i].b_base; + s->td[i].block = s->td[i].block_base; + s->td[i].uvblock[0] = s->td[i].uvblock_base[0]; + s->td[i].uvblock[1] = s->td[i].uvblock_base[1]; + s->td[i].eob = s->td[i].eob_base; + s->td[i].uveob[0] = s->td[i].uveob_base[0]; + s->td[i].uveob[1] = s->td[i].uveob_base[1]; + s->td[i].error_info = 0; + } + +#if HAVE_THREADS + if (avctx->active_thread_type == FF_THREAD_SLICE) { + int tile_row, tile_col; + + av_assert1(!s->pass); + + for (tile_row = 0; tile_row < s->s.h.tiling.tile_rows; tile_row++) { + for (tile_col = 0; tile_col < s->s.h.tiling.tile_cols; tile_col++) { + int64_t tile_size; + + if (tile_col == s->s.h.tiling.tile_cols - 1 && + tile_row == s->s.h.tiling.tile_rows - 1) { + tile_size = size; + } else { + tile_size = AV_RB32(data); + data += 4; + size -= 4; + } + if (tile_size > size) + return AVERROR_INVALIDDATA; + ret = ff_vpx_init_range_decoder(&s->td[tile_col].c_b[tile_row], data, tile_size); + if (ret < 0) + return ret; + if (vpx_rac_get_prob_branchy(&s->td[tile_col].c_b[tile_row], 128)) // marker bit + return AVERROR_INVALIDDATA; + data += tile_size; + size -= tile_size; + } + } + + ff_slice_thread_execute_with_mainfunc(avctx, decode_tiles_mt, loopfilter_proc, s->td, NULL, s->s.h.tiling.tile_cols); + } else +#endif + { + ret = decode_tiles(avctx, data, size); + if (ret < 0) { + ff_thread_report_progress(&s->s.frames[CUR_FRAME].tf, INT_MAX, 0); + return ret; + } + } + + // Sum all counts fields into td[0].counts for tile threading + if (avctx->active_thread_type == FF_THREAD_SLICE) + for (i = 1; i < s->s.h.tiling.tile_cols; i++) + for (j = 0; j < sizeof(s->td[i].counts) / sizeof(unsigned); j++) + ((unsigned *)&s->td[0].counts)[j] += ((unsigned *)&s->td[i].counts)[j]; + + if (s->pass < 2 && s->s.h.refreshctx && !s->s.h.parallelmode) { + ff_vp9_adapt_probs(s); + ff_thread_finish_setup(avctx); + } + } while (s->pass++ == 1); + ff_thread_report_progress(&s->s.frames[CUR_FRAME].tf, INT_MAX, 0); + + if (s->td->error_info < 0) { + av_log(avctx, AV_LOG_ERROR, "Failed to decode tile data\n"); + s->td->error_info = 0; + return AVERROR_INVALIDDATA; + } + if (avctx->export_side_data & AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS) { + ret = vp9_export_enc_params(s, &s->s.frames[CUR_FRAME]); + if (ret < 0) + return ret; + } + +finish: + // ref frame setup + for (i = 0; i < 8; i++) { + if (s->s.refs[i].f->buf[0]) + ff_thread_release_ext_buffer(avctx, &s->s.refs[i]); + if (s->next_refs[i].f->buf[0] && + (ret = ff_thread_ref_frame(&s->s.refs[i], &s->next_refs[i])) < 0) + return ret; + } + + if (!s->s.h.invisible) { + if ((ret = av_frame_ref(frame, s->s.frames[CUR_FRAME].tf.f)) < 0) + return ret; + *got_frame = 1; + } + + return pkt->size; +} + +static void vp9_decode_flush(AVCodecContext *avctx) +{ + VP9Context *s = avctx->priv_data; + int i; + + for (i = 0; i < 3; i++) + vp9_frame_unref(avctx, &s->s.frames[i]); + for (i = 0; i < 8; i++) + ff_thread_release_ext_buffer(avctx, &s->s.refs[i]); +} + +static av_cold int vp9_decode_init(AVCodecContext *avctx) +{ + VP9Context *s = avctx->priv_data; + int ret; + + s->last_bpp = 0; + s->s.h.filter.sharpness = -1; + +#if HAVE_THREADS + if (avctx->active_thread_type & FF_THREAD_SLICE) { + ret = ff_pthread_init(s, vp9_context_offsets); + if (ret < 0) + return ret; + } +#endif + + for (int i = 0; i < 3; i++) { + s->s.frames[i].tf.f = av_frame_alloc(); + if (!s->s.frames[i].tf.f) + return AVERROR(ENOMEM); + } + for (int i = 0; i < 8; i++) { + s->s.refs[i].f = av_frame_alloc(); + s->next_refs[i].f = av_frame_alloc(); + if (!s->s.refs[i].f || !s->next_refs[i].f) + return AVERROR(ENOMEM); + } + return 0; +} + +#if HAVE_THREADS +static int vp9_decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src) +{ + int i, ret; + VP9Context *s = dst->priv_data, *ssrc = src->priv_data; + + for (i = 0; i < 3; i++) { + if (s->s.frames[i].tf.f->buf[0]) + vp9_frame_unref(dst, &s->s.frames[i]); + if (ssrc->s.frames[i].tf.f->buf[0]) { + if ((ret = vp9_frame_ref(dst, &s->s.frames[i], &ssrc->s.frames[i])) < 0) + return ret; + } + } + for (i = 0; i < 8; i++) { + if (s->s.refs[i].f->buf[0]) + ff_thread_release_ext_buffer(dst, &s->s.refs[i]); + if (ssrc->next_refs[i].f->buf[0]) { + if ((ret = ff_thread_ref_frame(&s->s.refs[i], &ssrc->next_refs[i])) < 0) + return ret; + } + } + + s->s.h.invisible = ssrc->s.h.invisible; + s->s.h.keyframe = ssrc->s.h.keyframe; + s->s.h.intraonly = ssrc->s.h.intraonly; + s->ss_v = ssrc->ss_v; + s->ss_h = ssrc->ss_h; + s->s.h.segmentation.enabled = ssrc->s.h.segmentation.enabled; + s->s.h.segmentation.update_map = ssrc->s.h.segmentation.update_map; + s->s.h.segmentation.absolute_vals = ssrc->s.h.segmentation.absolute_vals; + s->bytesperpixel = ssrc->bytesperpixel; + s->gf_fmt = ssrc->gf_fmt; + s->w = ssrc->w; + s->h = ssrc->h; + s->s.h.bpp = ssrc->s.h.bpp; + s->bpp_index = ssrc->bpp_index; + s->pix_fmt = ssrc->pix_fmt; + memcpy(&s->prob_ctx, &ssrc->prob_ctx, sizeof(s->prob_ctx)); + memcpy(&s->s.h.lf_delta, &ssrc->s.h.lf_delta, sizeof(s->s.h.lf_delta)); + memcpy(&s->s.h.segmentation.feat, &ssrc->s.h.segmentation.feat, + sizeof(s->s.h.segmentation.feat)); + + return 0; +} +#endif + +const FFCodec ff_vp9_decoder = { + .p.name = "vp9", + CODEC_LONG_NAME("Google VP9"), + .p.type = AVMEDIA_TYPE_VIDEO, + .p.id = AV_CODEC_ID_VP9, + .priv_data_size = sizeof(VP9Context), + .init = vp9_decode_init, + .close = vp9_decode_free, + FF_CODEC_DECODE_CB(vp9_decode_frame), + .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS | AV_CODEC_CAP_SLICE_THREADS, + .caps_internal = FF_CODEC_CAP_INIT_CLEANUP | + FF_CODEC_CAP_SLICE_THREAD_HAS_MF | + FF_CODEC_CAP_ALLOCATE_PROGRESS, + .flush = vp9_decode_flush, + UPDATE_THREAD_CONTEXT(vp9_decode_update_thread_context), + .p.profiles = NULL_IF_CONFIG_SMALL(ff_vp9_profiles), + .bsfs = "vp9_superframe_split", + .hw_configs = (const AVCodecHWConfigInternal *const []) { +#if CONFIG_VP9_DXVA2_HWACCEL + HWACCEL_DXVA2(vp9), +#endif +#if CONFIG_VP9_D3D11VA_HWACCEL + HWACCEL_D3D11VA(vp9), +#endif +#if CONFIG_VP9_D3D11VA2_HWACCEL + HWACCEL_D3D11VA2(vp9), +#endif +#if CONFIG_VP9_NVDEC_HWACCEL + HWACCEL_NVDEC(vp9), +#endif +#if CONFIG_VP9_VAAPI_HWACCEL + HWACCEL_VAAPI(vp9), +#endif +#if CONFIG_VP9_VDPAU_HWACCEL + HWACCEL_VDPAU(vp9), +#endif +#if CONFIG_VP9_VIDEOTOOLBOX_HWACCEL + HWACCEL_VIDEOTOOLBOX(vp9), +#endif + NULL + }, +}; 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