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Diffstat (limited to 'media/ffvpx/libavcodec/vp9.c')
-rw-r--r--media/ffvpx/libavcodec/vp9.c1923
1 files changed, 1923 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/vp9.c b/media/ffvpx/libavcodec/vp9.c
new file mode 100644
index 0000000000..855936cdc1
--- /dev/null
+++ b/media/ffvpx/libavcodec/vp9.c
@@ -0,0 +1,1923 @@
+/*
+ * VP9 compatible video decoder
+ *
+ * Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com>
+ * Copyright (C) 2013 Clément Bœsch <u pkh me>
+ *
+ * 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 "hwaccel_internal.h"
+#include "hwconfig.h"
+#include "profiles.h"
+#include "refstruct.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(VP9Frame *f)
+{
+ ff_thread_release_ext_buffer(&f->tf);
+ ff_refstruct_unref(&f->extradata);
+ ff_refstruct_unref(&f->hwaccel_picture_private);
+ f->segmentation_map = 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) {
+ ff_refstruct_pool_uninit(&s->frame_extradata_pool);
+ s->frame_extradata_pool = ff_refstruct_pool_alloc(sz * (1 + sizeof(VP9mvrefPair)),
+ FF_REFSTRUCT_POOL_FLAG_ZERO_EVERY_TIME);
+ if (!s->frame_extradata_pool) {
+ s->frame_extradata_pool_size = 0;
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ s->frame_extradata_pool_size = sz;
+ }
+ f->extradata = ff_refstruct_pool_get(s->frame_extradata_pool);
+ if (!f->extradata) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ f->segmentation_map = f->extradata;
+ f->mv = (VP9mvrefPair *) ((char*)f->extradata + sz);
+
+ ret = ff_hwaccel_frame_priv_alloc(avctx, &f->hwaccel_picture_private);
+ if (ret < 0)
+ goto fail;
+
+ return 0;
+
+fail:
+ vp9_frame_unref(f);
+ return ret;
+}
+
+static int vp9_frame_ref(VP9Frame *dst, VP9Frame *src)
+{
+ int ret;
+
+ ret = ff_thread_ref_frame(&dst->tf, &src->tf);
+ if (ret < 0)
+ return ret;
+
+ dst->extradata = ff_refstruct_ref(src->extradata);
+
+ dst->segmentation_map = src->segmentation_map;
+ dst->mv = src->mv;
+ dst->uses_2pass = src->uses_2pass;
+
+ ff_refstruct_replace(&dst->hwaccel_picture_private,
+ src->hwaccel_picture_private);
+
+ return 0;
+}
+
+static int update_size(AVCodecContext *avctx, int w, int h)
+{
+#define HWACCEL_MAX (CONFIG_VP9_DXVA2_HWACCEL + \
+ CONFIG_VP9_D3D11VA_HWACCEL * 2 + \
+ CONFIG_VP9_D3D12VA_HWACCEL + \
+ 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_D3D12VA_HWACCEL
+ *fmtp++ = AV_PIX_FMT_D3D12;
+#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;
+ case AV_PIX_FMT_GBRP:
+ case AV_PIX_FMT_GBRP10:
+ case AV_PIX_FMT_GBRP12:
+#if CONFIG_VP9_VAAPI_HWACCEL
+ *fmtp++ = AV_PIX_FMT_VAAPI;
+#endif
+ break;
+ }
+
+ *fmtp++ = s->pix_fmt;
+ *fmtp = AV_PIX_FMT_NONE;
+
+ ret = ff_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(&s->s.frames[i]);
+ av_frame_free(&s->s.frames[i].tf.f);
+ }
+ ff_refstruct_pool_uninit(&s->frame_extradata_pool);
+ for (i = 0; i < 8; i++) {
+ ff_thread_release_ext_buffer(&s->s.refs[i]);
+ av_frame_free(&s->s.refs[i].f);
+ ff_thread_release_ext_buffer(&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(&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(&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(&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(&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(&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(&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;
+ if (s->s.h.keyframe)
+ f->flags |= AV_FRAME_FLAG_KEY;
+ else
+ f->flags &= ~AV_FRAME_FLAG_KEY;
+ 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(&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(&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) {
+ const FFHWAccel *hwaccel = ffhwaccel(avctx->hwaccel);
+ ret = hwaccel->start_frame(avctx, NULL, 0);
+ if (ret < 0)
+ return ret;
+ ret = hwaccel->decode_slice(avctx, pkt->data, pkt->size);
+ if (ret < 0)
+ return ret;
+ ret = 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(&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(&s->s.frames[i]);
+ for (i = 0; i < 8; i++)
+ ff_thread_release_ext_buffer(&s->s.refs[i]);
+
+ if (FF_HW_HAS_CB(avctx, flush))
+ FF_HW_SIMPLE_CALL(avctx, flush);
+}
+
+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(&s->s.frames[i]);
+ if (ssrc->s.frames[i].tf.f->buf[0]) {
+ if ((ret = vp9_frame_ref(&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(&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;
+ }
+ }
+ ff_refstruct_replace(&s->frame_extradata_pool, ssrc->frame_extradata_pool);
+ s->frame_extradata_pool_size = ssrc->frame_extradata_pool_size;
+
+ 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_D3D12VA_HWACCEL
+ HWACCEL_D3D12VA(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
+ },
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 10:50:28 +0000