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Diffstat (limited to 'chromium/third_party/ffmpeg/libavcodec/h264_slice.c')
-rw-r--r--chromium/third_party/ffmpeg/libavcodec/h264_slice.c2565
1 files changed, 2565 insertions, 0 deletions
diff --git a/chromium/third_party/ffmpeg/libavcodec/h264_slice.c b/chromium/third_party/ffmpeg/libavcodec/h264_slice.c
new file mode 100644
index 00000000000..a9500432d95
--- /dev/null
+++ b/chromium/third_party/ffmpeg/libavcodec/h264_slice.c
@@ -0,0 +1,2565 @@
+/*
+ * H.26L/H.264/AVC/JVT/14496-10/... decoder
+ * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * H.264 / AVC / MPEG4 part10 codec.
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "libavutil/avassert.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/timer.h"
+#include "internal.h"
+#include "cabac.h"
+#include "cabac_functions.h"
+#include "dsputil.h"
+#include "error_resilience.h"
+#include "avcodec.h"
+#include "h264.h"
+#include "h264data.h"
+#include "h264chroma.h"
+#include "h264_mvpred.h"
+#include "golomb.h"
+#include "mathops.h"
+#include "mpegutils.h"
+#include "rectangle.h"
+#include "thread.h"
+
+
+static const uint8_t rem6[QP_MAX_NUM + 1] = {
+ 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2,
+ 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5,
+ 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2,
+ 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5,
+ 0, 1, 2, 3,
+};
+
+static const uint8_t div6[QP_MAX_NUM + 1] = {
+ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3,
+ 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6,
+ 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10,
+ 10,10,10,11,11,11,11,11,11,12,12,12,12,12,12,13,13,13, 13, 13, 13,
+ 14,14,14,14,
+};
+
+static const uint8_t field_scan[16+1] = {
+ 0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4,
+ 0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4,
+ 2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4,
+ 3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4,
+};
+
+static const uint8_t field_scan8x8[64+1] = {
+ 0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8,
+ 1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8,
+ 2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8,
+ 0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8,
+ 2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8,
+ 2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8,
+ 2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8,
+ 3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8,
+ 3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8,
+ 4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8,
+ 4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8,
+ 5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8,
+ 5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8,
+ 7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8,
+ 6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8,
+ 7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8,
+};
+
+static const uint8_t field_scan8x8_cavlc[64+1] = {
+ 0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8,
+ 2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8,
+ 3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8,
+ 5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8,
+ 0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8,
+ 1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8,
+ 3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8,
+ 5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8,
+ 0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8,
+ 1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8,
+ 3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8,
+ 5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8,
+ 1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8,
+ 1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8,
+ 3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8,
+ 6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8,
+};
+
+// zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]
+static const uint8_t zigzag_scan8x8_cavlc[64+1] = {
+ 0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8,
+ 4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8,
+ 3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8,
+ 2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8,
+ 1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8,
+ 3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8,
+ 2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8,
+ 3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8,
+ 0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8,
+ 2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8,
+ 1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8,
+ 4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8,
+ 0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8,
+ 1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8,
+ 0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8,
+ 5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8,
+};
+
+static const uint8_t dequant4_coeff_init[6][3] = {
+ { 10, 13, 16 },
+ { 11, 14, 18 },
+ { 13, 16, 20 },
+ { 14, 18, 23 },
+ { 16, 20, 25 },
+ { 18, 23, 29 },
+};
+
+static const uint8_t dequant8_coeff_init_scan[16] = {
+ 0, 3, 4, 3, 3, 1, 5, 1, 4, 5, 2, 5, 3, 1, 5, 1
+};
+
+static const uint8_t dequant8_coeff_init[6][6] = {
+ { 20, 18, 32, 19, 25, 24 },
+ { 22, 19, 35, 21, 28, 26 },
+ { 26, 23, 42, 24, 33, 31 },
+ { 28, 25, 45, 26, 35, 33 },
+ { 32, 28, 51, 30, 40, 38 },
+ { 36, 32, 58, 34, 46, 43 },
+};
+
+static const enum AVPixelFormat h264_hwaccel_pixfmt_list_420[] = {
+#if CONFIG_H264_DXVA2_HWACCEL
+ AV_PIX_FMT_DXVA2_VLD,
+#endif
+#if CONFIG_H264_VAAPI_HWACCEL
+ AV_PIX_FMT_VAAPI_VLD,
+#endif
+#if CONFIG_H264_VDA_HWACCEL
+ AV_PIX_FMT_VDA_VLD,
+ AV_PIX_FMT_VDA,
+#endif
+#if CONFIG_H264_VDPAU_HWACCEL
+ AV_PIX_FMT_VDPAU,
+#endif
+ AV_PIX_FMT_YUV420P,
+ AV_PIX_FMT_NONE
+};
+
+static const enum AVPixelFormat h264_hwaccel_pixfmt_list_jpeg_420[] = {
+#if CONFIG_H264_DXVA2_HWACCEL
+ AV_PIX_FMT_DXVA2_VLD,
+#endif
+#if CONFIG_H264_VAAPI_HWACCEL
+ AV_PIX_FMT_VAAPI_VLD,
+#endif
+#if CONFIG_H264_VDA_HWACCEL
+ AV_PIX_FMT_VDA_VLD,
+ AV_PIX_FMT_VDA,
+#endif
+#if CONFIG_H264_VDPAU_HWACCEL
+ AV_PIX_FMT_VDPAU,
+#endif
+ AV_PIX_FMT_YUVJ420P,
+ AV_PIX_FMT_NONE
+};
+
+
+static void release_unused_pictures(H264Context *h, int remove_current)
+{
+ int i;
+
+ /* release non reference frames */
+ for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
+ if (h->DPB[i].f.buf[0] && !h->DPB[i].reference &&
+ (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
+ ff_h264_unref_picture(h, &h->DPB[i]);
+ }
+ }
+}
+
+static int alloc_scratch_buffers(H264Context *h, int linesize)
+{
+ int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
+
+ if (h->bipred_scratchpad)
+ return 0;
+
+ h->bipred_scratchpad = av_malloc(16 * 6 * alloc_size);
+ // edge emu needs blocksize + filter length - 1
+ // (= 21x21 for h264)
+ h->edge_emu_buffer = av_mallocz(alloc_size * 2 * 21);
+
+ if (!h->bipred_scratchpad || !h->edge_emu_buffer) {
+ av_freep(&h->bipred_scratchpad);
+ av_freep(&h->edge_emu_buffer);
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+static int init_table_pools(H264Context *h)
+{
+ const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1;
+ const int mb_array_size = h->mb_stride * h->mb_height;
+ const int b4_stride = h->mb_width * 4 + 1;
+ const int b4_array_size = b4_stride * h->mb_height * 4;
+
+ h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride,
+ av_buffer_allocz);
+ h->mb_type_pool = av_buffer_pool_init((big_mb_num + h->mb_stride) *
+ sizeof(uint32_t), av_buffer_allocz);
+ h->motion_val_pool = av_buffer_pool_init(2 * (b4_array_size + 4) *
+ sizeof(int16_t), av_buffer_allocz);
+ h->ref_index_pool = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz);
+
+ if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
+ !h->ref_index_pool) {
+ av_buffer_pool_uninit(&h->qscale_table_pool);
+ av_buffer_pool_uninit(&h->mb_type_pool);
+ av_buffer_pool_uninit(&h->motion_val_pool);
+ av_buffer_pool_uninit(&h->ref_index_pool);
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+static int alloc_picture(H264Context *h, H264Picture *pic)
+{
+ int i, ret = 0;
+
+ av_assert0(!pic->f.data[0]);
+
+ pic->tf.f = &pic->f;
+ ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ?
+ AV_GET_BUFFER_FLAG_REF : 0);
+ if (ret < 0)
+ goto fail;
+
+ h->linesize = pic->f.linesize[0];
+ h->uvlinesize = pic->f.linesize[1];
+ pic->crop = h->sps.crop;
+ pic->crop_top = h->sps.crop_top;
+ pic->crop_left= h->sps.crop_left;
+
+ if (h->avctx->hwaccel) {
+ const AVHWAccel *hwaccel = h->avctx->hwaccel;
+ av_assert0(!pic->hwaccel_picture_private);
+ if (hwaccel->frame_priv_data_size) {
+ pic->hwaccel_priv_buf = av_buffer_allocz(hwaccel->frame_priv_data_size);
+ if (!pic->hwaccel_priv_buf)
+ return AVERROR(ENOMEM);
+ pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
+ }
+ }
+ if (!h->avctx->hwaccel && CONFIG_GRAY && h->flags & CODEC_FLAG_GRAY && pic->f.data[2]) {
+ int h_chroma_shift, v_chroma_shift;
+ av_pix_fmt_get_chroma_sub_sample(pic->f.format,
+ &h_chroma_shift, &v_chroma_shift);
+
+ for(i=0; i<FF_CEIL_RSHIFT(h->avctx->height, v_chroma_shift); i++) {
+ memset(pic->f.data[1] + pic->f.linesize[1]*i,
+ 0x80, FF_CEIL_RSHIFT(h->avctx->width, h_chroma_shift));
+ memset(pic->f.data[2] + pic->f.linesize[2]*i,
+ 0x80, FF_CEIL_RSHIFT(h->avctx->width, h_chroma_shift));
+ }
+ }
+
+ if (!h->qscale_table_pool) {
+ ret = init_table_pools(h);
+ if (ret < 0)
+ goto fail;
+ }
+
+ pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool);
+ pic->mb_type_buf = av_buffer_pool_get(h->mb_type_pool);
+ if (!pic->qscale_table_buf || !pic->mb_type_buf)
+ goto fail;
+
+ pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1;
+ pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1;
+
+ for (i = 0; i < 2; i++) {
+ pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool);
+ pic->ref_index_buf[i] = av_buffer_pool_get(h->ref_index_pool);
+ if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
+ goto fail;
+
+ pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
+ pic->ref_index[i] = pic->ref_index_buf[i]->data;
+ }
+
+ return 0;
+fail:
+ ff_h264_unref_picture(h, pic);
+ return (ret < 0) ? ret : AVERROR(ENOMEM);
+}
+
+static inline int pic_is_unused(H264Context *h, H264Picture *pic)
+{
+ if (!pic->f.buf[0])
+ return 1;
+ if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
+ return 1;
+ return 0;
+}
+
+static int find_unused_picture(H264Context *h)
+{
+ int i;
+
+ for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
+ if (pic_is_unused(h, &h->DPB[i]))
+ break;
+ }
+ if (i == H264_MAX_PICTURE_COUNT)
+ return AVERROR_INVALIDDATA;
+
+ if (h->DPB[i].needs_realloc) {
+ h->DPB[i].needs_realloc = 0;
+ ff_h264_unref_picture(h, &h->DPB[i]);
+ }
+
+ return i;
+}
+
+
+static void init_dequant8_coeff_table(H264Context *h)
+{
+ int i, j, q, x;
+ const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8);
+
+ for (i = 0; i < 6; i++) {
+ h->dequant8_coeff[i] = h->dequant8_buffer[i];
+ for (j = 0; j < i; j++)
+ if (!memcmp(h->pps.scaling_matrix8[j], h->pps.scaling_matrix8[i],
+ 64 * sizeof(uint8_t))) {
+ h->dequant8_coeff[i] = h->dequant8_buffer[j];
+ break;
+ }
+ if (j < i)
+ continue;
+
+ for (q = 0; q < max_qp + 1; q++) {
+ int shift = div6[q];
+ int idx = rem6[q];
+ for (x = 0; x < 64; x++)
+ h->dequant8_coeff[i][q][(x >> 3) | ((x & 7) << 3)] =
+ ((uint32_t)dequant8_coeff_init[idx][dequant8_coeff_init_scan[((x >> 1) & 12) | (x & 3)]] *
+ h->pps.scaling_matrix8[i][x]) << shift;
+ }
+ }
+}
+
+static void init_dequant4_coeff_table(H264Context *h)
+{
+ int i, j, q, x;
+ const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8);
+ for (i = 0; i < 6; i++) {
+ h->dequant4_coeff[i] = h->dequant4_buffer[i];
+ for (j = 0; j < i; j++)
+ if (!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i],
+ 16 * sizeof(uint8_t))) {
+ h->dequant4_coeff[i] = h->dequant4_buffer[j];
+ break;
+ }
+ if (j < i)
+ continue;
+
+ for (q = 0; q < max_qp + 1; q++) {
+ int shift = div6[q] + 2;
+ int idx = rem6[q];
+ for (x = 0; x < 16; x++)
+ h->dequant4_coeff[i][q][(x >> 2) | ((x << 2) & 0xF)] =
+ ((uint32_t)dequant4_coeff_init[idx][(x & 1) + ((x >> 2) & 1)] *
+ h->pps.scaling_matrix4[i][x]) << shift;
+ }
+ }
+}
+
+void h264_init_dequant_tables(H264Context *h)
+{
+ int i, x;
+ init_dequant4_coeff_table(h);
+ memset(h->dequant8_coeff, 0, sizeof(h->dequant8_coeff));
+
+ if (h->pps.transform_8x8_mode)
+ init_dequant8_coeff_table(h);
+ if (h->sps.transform_bypass) {
+ for (i = 0; i < 6; i++)
+ for (x = 0; x < 16; x++)
+ h->dequant4_coeff[i][0][x] = 1 << 6;
+ if (h->pps.transform_8x8_mode)
+ for (i = 0; i < 6; i++)
+ for (x = 0; x < 64; x++)
+ h->dequant8_coeff[i][0][x] = 1 << 6;
+ }
+}
+
+/**
+ * Mimic alloc_tables(), but for every context thread.
+ */
+static void clone_tables(H264Context *dst, H264Context *src, int i)
+{
+ dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i * 8 * 2 * src->mb_stride;
+ dst->non_zero_count = src->non_zero_count;
+ dst->slice_table = src->slice_table;
+ dst->cbp_table = src->cbp_table;
+ dst->mb2b_xy = src->mb2b_xy;
+ dst->mb2br_xy = src->mb2br_xy;
+ dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
+ dst->mvd_table[0] = src->mvd_table[0] + i * 8 * 2 * src->mb_stride;
+ dst->mvd_table[1] = src->mvd_table[1] + i * 8 * 2 * src->mb_stride;
+ dst->direct_table = src->direct_table;
+ dst->list_counts = src->list_counts;
+ dst->DPB = src->DPB;
+ dst->cur_pic_ptr = src->cur_pic_ptr;
+ dst->cur_pic = src->cur_pic;
+ dst->bipred_scratchpad = NULL;
+ dst->edge_emu_buffer = NULL;
+ ff_h264_pred_init(&dst->hpc, src->avctx->codec_id, src->sps.bit_depth_luma,
+ src->sps.chroma_format_idc);
+}
+
+#define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b) + (size))))
+#undef REBASE_PICTURE
+#define REBASE_PICTURE(pic, new_ctx, old_ctx) \
+ ((pic && pic >= old_ctx->DPB && \
+ pic < old_ctx->DPB + H264_MAX_PICTURE_COUNT) ? \
+ &new_ctx->DPB[pic - old_ctx->DPB] : NULL)
+
+static void copy_picture_range(H264Picture **to, H264Picture **from, int count,
+ H264Context *new_base,
+ H264Context *old_base)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
+ IN_RANGE(from[i], old_base->DPB,
+ sizeof(H264Picture) * H264_MAX_PICTURE_COUNT) ||
+ !from[i]));
+ to[i] = REBASE_PICTURE(from[i], new_base, old_base);
+ }
+}
+
+static int copy_parameter_set(void **to, void **from, int count, int size)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ if (to[i] && !from[i]) {
+ av_freep(&to[i]);
+ } else if (from[i] && !to[i]) {
+ to[i] = av_malloc(size);
+ if (!to[i])
+ return AVERROR(ENOMEM);
+ }
+
+ if (from[i])
+ memcpy(to[i], from[i], size);
+ }
+
+ return 0;
+}
+
+#define copy_fields(to, from, start_field, end_field) \
+ memcpy(&to->start_field, &from->start_field, \
+ (char *)&to->end_field - (char *)&to->start_field)
+
+static int h264_slice_header_init(H264Context *h, int reinit);
+
+int ff_h264_update_thread_context(AVCodecContext *dst,
+ const AVCodecContext *src)
+{
+ H264Context *h = dst->priv_data, *h1 = src->priv_data;
+ int inited = h->context_initialized, err = 0;
+ int context_reinitialized = 0;
+ int i, ret;
+
+ if (dst == src)
+ return 0;
+
+ if (inited &&
+ (h->width != h1->width ||
+ h->height != h1->height ||
+ h->mb_width != h1->mb_width ||
+ h->mb_height != h1->mb_height ||
+ h->sps.bit_depth_luma != h1->sps.bit_depth_luma ||
+ h->sps.chroma_format_idc != h1->sps.chroma_format_idc ||
+ h->sps.colorspace != h1->sps.colorspace)) {
+
+ /* set bits_per_raw_sample to the previous value. the check for changed
+ * bit depth in h264_set_parameter_from_sps() uses it and sets it to
+ * the current value */
+ h->avctx->bits_per_raw_sample = h->sps.bit_depth_luma;
+
+ av_freep(&h->bipred_scratchpad);
+
+ h->width = h1->width;
+ h->height = h1->height;
+ h->mb_height = h1->mb_height;
+ h->mb_width = h1->mb_width;
+ h->mb_num = h1->mb_num;
+ h->mb_stride = h1->mb_stride;
+ h->b_stride = h1->b_stride;
+ // SPS/PPS
+ if ((ret = copy_parameter_set((void **)h->sps_buffers,
+ (void **)h1->sps_buffers,
+ MAX_SPS_COUNT, sizeof(SPS))) < 0)
+ return ret;
+ h->sps = h1->sps;
+ if ((ret = copy_parameter_set((void **)h->pps_buffers,
+ (void **)h1->pps_buffers,
+ MAX_PPS_COUNT, sizeof(PPS))) < 0)
+ return ret;
+ h->pps = h1->pps;
+
+ if ((err = h264_slice_header_init(h, 1)) < 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
+ return err;
+ }
+ context_reinitialized = 1;
+
+#if 0
+ h264_set_parameter_from_sps(h);
+ //Note we set context_reinitialized which will cause h264_set_parameter_from_sps to be reexecuted
+ h->cur_chroma_format_idc = h1->cur_chroma_format_idc;
+#endif
+ }
+ /* update linesize on resize for h264. The h264 decoder doesn't
+ * necessarily call ff_MPV_frame_start in the new thread */
+ h->linesize = h1->linesize;
+ h->uvlinesize = h1->uvlinesize;
+
+ /* copy block_offset since frame_start may not be called */
+ memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
+
+ if (!inited) {
+ for (i = 0; i < MAX_SPS_COUNT; i++)
+ av_freep(h->sps_buffers + i);
+
+ for (i = 0; i < MAX_PPS_COUNT; i++)
+ av_freep(h->pps_buffers + i);
+
+ av_freep(&h->rbsp_buffer[0]);
+ av_freep(&h->rbsp_buffer[1]);
+ memcpy(h, h1, offsetof(H264Context, intra_pcm_ptr));
+ memcpy(&h->cabac, &h1->cabac,
+ sizeof(H264Context) - offsetof(H264Context, cabac));
+ av_assert0((void*)&h->cabac == &h->mb_padding + 1);
+
+ memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
+ memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
+
+ memset(&h->er, 0, sizeof(h->er));
+ memset(&h->mb, 0, sizeof(h->mb));
+ memset(&h->mb_luma_dc, 0, sizeof(h->mb_luma_dc));
+ memset(&h->mb_padding, 0, sizeof(h->mb_padding));
+ memset(&h->cur_pic, 0, sizeof(h->cur_pic));
+
+ h->avctx = dst;
+ h->DPB = NULL;
+ h->qscale_table_pool = NULL;
+ h->mb_type_pool = NULL;
+ h->ref_index_pool = NULL;
+ h->motion_val_pool = NULL;
+ for (i = 0; i < 2; i++) {
+ h->rbsp_buffer[i] = NULL;
+ h->rbsp_buffer_size[i] = 0;
+ }
+
+ if (h1->context_initialized) {
+ h->context_initialized = 0;
+
+ memset(&h->cur_pic, 0, sizeof(h->cur_pic));
+ av_frame_unref(&h->cur_pic.f);
+ h->cur_pic.tf.f = &h->cur_pic.f;
+
+ ret = ff_h264_alloc_tables(h);
+ if (ret < 0) {
+ av_log(dst, AV_LOG_ERROR, "Could not allocate memory\n");
+ return ret;
+ }
+ ret = ff_h264_context_init(h);
+ if (ret < 0) {
+ av_log(dst, AV_LOG_ERROR, "context_init() failed.\n");
+ return ret;
+ }
+ }
+
+ h->bipred_scratchpad = NULL;
+ h->edge_emu_buffer = NULL;
+
+ h->thread_context[0] = h;
+ h->context_initialized = h1->context_initialized;
+ }
+
+ h->avctx->coded_height = h1->avctx->coded_height;
+ h->avctx->coded_width = h1->avctx->coded_width;
+ h->avctx->width = h1->avctx->width;
+ h->avctx->height = h1->avctx->height;
+ h->coded_picture_number = h1->coded_picture_number;
+ h->first_field = h1->first_field;
+ h->picture_structure = h1->picture_structure;
+ h->qscale = h1->qscale;
+ h->droppable = h1->droppable;
+ h->low_delay = h1->low_delay;
+
+ for (i = 0; h->DPB && i < H264_MAX_PICTURE_COUNT; i++) {
+ ff_h264_unref_picture(h, &h->DPB[i]);
+ if (h1->DPB && h1->DPB[i].f.buf[0] &&
+ (ret = ff_h264_ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0)
+ return ret;
+ }
+
+ h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
+ ff_h264_unref_picture(h, &h->cur_pic);
+ if (h1->cur_pic.f.buf[0] && (ret = ff_h264_ref_picture(h, &h->cur_pic, &h1->cur_pic)) < 0)
+ return ret;
+
+ h->workaround_bugs = h1->workaround_bugs;
+ h->low_delay = h1->low_delay;
+ h->droppable = h1->droppable;
+
+ // extradata/NAL handling
+ h->is_avc = h1->is_avc;
+
+ // SPS/PPS
+ if ((ret = copy_parameter_set((void **)h->sps_buffers,
+ (void **)h1->sps_buffers,
+ MAX_SPS_COUNT, sizeof(SPS))) < 0)
+ return ret;
+ h->sps = h1->sps;
+ if ((ret = copy_parameter_set((void **)h->pps_buffers,
+ (void **)h1->pps_buffers,
+ MAX_PPS_COUNT, sizeof(PPS))) < 0)
+ return ret;
+ h->pps = h1->pps;
+
+ // Dequantization matrices
+ // FIXME these are big - can they be only copied when PPS changes?
+ copy_fields(h, h1, dequant4_buffer, dequant4_coeff);
+
+ for (i = 0; i < 6; i++)
+ h->dequant4_coeff[i] = h->dequant4_buffer[0] +
+ (h1->dequant4_coeff[i] - h1->dequant4_buffer[0]);
+
+ for (i = 0; i < 6; i++)
+ h->dequant8_coeff[i] = h->dequant8_buffer[0] +
+ (h1->dequant8_coeff[i] - h1->dequant8_buffer[0]);
+
+ h->dequant_coeff_pps = h1->dequant_coeff_pps;
+
+ // POC timing
+ copy_fields(h, h1, poc_lsb, redundant_pic_count);
+
+ // reference lists
+ copy_fields(h, h1, short_ref, cabac_init_idc);
+
+ copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
+ copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
+ copy_picture_range(h->delayed_pic, h1->delayed_pic,
+ MAX_DELAYED_PIC_COUNT + 2, h, h1);
+
+ h->frame_recovered = h1->frame_recovered;
+
+ if (context_reinitialized)
+ ff_h264_set_parameter_from_sps(h);
+
+ if (!h->cur_pic_ptr)
+ return 0;
+
+ if (!h->droppable) {
+ err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
+ h->prev_poc_msb = h->poc_msb;
+ h->prev_poc_lsb = h->poc_lsb;
+ }
+ h->prev_frame_num_offset = h->frame_num_offset;
+ h->prev_frame_num = h->frame_num;
+ h->outputed_poc = h->next_outputed_poc;
+
+ h->recovery_frame = h1->recovery_frame;
+
+ return err;
+}
+
+static int h264_frame_start(H264Context *h)
+{
+ H264Picture *pic;
+ int i, ret;
+ const int pixel_shift = h->pixel_shift;
+ int c[4] = {
+ 1<<(h->sps.bit_depth_luma-1),
+ 1<<(h->sps.bit_depth_chroma-1),
+ 1<<(h->sps.bit_depth_chroma-1),
+ -1
+ };
+
+ if (!ff_thread_can_start_frame(h->avctx)) {
+ av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
+ return -1;
+ }
+
+ release_unused_pictures(h, 1);
+ h->cur_pic_ptr = NULL;
+
+ i = find_unused_picture(h);
+ if (i < 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
+ return i;
+ }
+ pic = &h->DPB[i];
+
+ pic->reference = h->droppable ? 0 : h->picture_structure;
+ pic->f.coded_picture_number = h->coded_picture_number++;
+ pic->field_picture = h->picture_structure != PICT_FRAME;
+
+ /*
+ * Zero key_frame here; IDR markings per slice in frame or fields are ORed
+ * in later.
+ * See decode_nal_units().
+ */
+ pic->f.key_frame = 0;
+ pic->mmco_reset = 0;
+ pic->recovered = 0;
+ pic->invalid_gap = 0;
+ pic->sei_recovery_frame_cnt = h->sei_recovery_frame_cnt;
+
+ if ((ret = alloc_picture(h, pic)) < 0)
+ return ret;
+ if(!h->frame_recovered && !h->avctx->hwaccel &&
+ !(h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU))
+ avpriv_color_frame(&pic->f, c);
+
+ h->cur_pic_ptr = pic;
+ ff_h264_unref_picture(h, &h->cur_pic);
+ if (CONFIG_ERROR_RESILIENCE) {
+ ff_h264_set_erpic(&h->er.cur_pic, NULL);
+ }
+
+ if ((ret = ff_h264_ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0)
+ return ret;
+
+ if (CONFIG_ERROR_RESILIENCE) {
+ ff_er_frame_start(&h->er);
+ ff_h264_set_erpic(&h->er.last_pic, NULL);
+ ff_h264_set_erpic(&h->er.next_pic, NULL);
+ }
+
+ assert(h->linesize && h->uvlinesize);
+
+ for (i = 0; i < 16; i++) {
+ h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * h->linesize * ((scan8[i] - scan8[0]) >> 3);
+ h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * h->linesize * ((scan8[i] - scan8[0]) >> 3);
+ }
+ for (i = 0; i < 16; i++) {
+ h->block_offset[16 + i] =
+ h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3);
+ h->block_offset[48 + 16 + i] =
+ h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3);
+ }
+
+ /* We mark the current picture as non-reference after allocating it, so
+ * that if we break out due to an error it can be released automatically
+ * in the next ff_MPV_frame_start().
+ */
+ h->cur_pic_ptr->reference = 0;
+
+ h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
+
+ h->next_output_pic = NULL;
+
+ assert(h->cur_pic_ptr->long_ref == 0);
+
+ return 0;
+}
+
+static av_always_inline void backup_mb_border(H264Context *h, uint8_t *src_y,
+ uint8_t *src_cb, uint8_t *src_cr,
+ int linesize, int uvlinesize,
+ int simple)
+{
+ uint8_t *top_border;
+ int top_idx = 1;
+ const int pixel_shift = h->pixel_shift;
+ int chroma444 = CHROMA444(h);
+ int chroma422 = CHROMA422(h);
+
+ src_y -= linesize;
+ src_cb -= uvlinesize;
+ src_cr -= uvlinesize;
+
+ if (!simple && FRAME_MBAFF(h)) {
+ if (h->mb_y & 1) {
+ if (!MB_MBAFF(h)) {
+ top_border = h->top_borders[0][h->mb_x];
+ AV_COPY128(top_border, src_y + 15 * linesize);
+ if (pixel_shift)
+ AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
+ if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
+ if (chroma444) {
+ if (pixel_shift) {
+ AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
+ AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
+ AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
+ AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
+ } else {
+ AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
+ AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
+ }
+ } else if (chroma422) {
+ if (pixel_shift) {
+ AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
+ AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
+ } else {
+ AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
+ AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
+ }
+ } else {
+ if (pixel_shift) {
+ AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
+ AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
+ } else {
+ AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
+ AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
+ }
+ }
+ }
+ }
+ } else if (MB_MBAFF(h)) {
+ top_idx = 0;
+ } else
+ return;
+ }
+
+ top_border = h->top_borders[top_idx][h->mb_x];
+ /* There are two lines saved, the line above the top macroblock
+ * of a pair, and the line above the bottom macroblock. */
+ AV_COPY128(top_border, src_y + 16 * linesize);
+ if (pixel_shift)
+ AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
+
+ if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
+ if (chroma444) {
+ if (pixel_shift) {
+ AV_COPY128(top_border + 32, src_cb + 16 * linesize);
+ AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
+ AV_COPY128(top_border + 64, src_cr + 16 * linesize);
+ AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
+ } else {
+ AV_COPY128(top_border + 16, src_cb + 16 * linesize);
+ AV_COPY128(top_border + 32, src_cr + 16 * linesize);
+ }
+ } else if (chroma422) {
+ if (pixel_shift) {
+ AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
+ AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
+ } else {
+ AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
+ AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
+ }
+ } else {
+ if (pixel_shift) {
+ AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
+ AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
+ } else {
+ AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
+ AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
+ }
+ }
+ }
+}
+
+/**
+ * Initialize implicit_weight table.
+ * @param field 0/1 initialize the weight for interlaced MBAFF
+ * -1 initializes the rest
+ */
+static void implicit_weight_table(H264Context *h, int field)
+{
+ int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
+
+ for (i = 0; i < 2; i++) {
+ h->luma_weight_flag[i] = 0;
+ h->chroma_weight_flag[i] = 0;
+ }
+
+ if (field < 0) {
+ if (h->picture_structure == PICT_FRAME) {
+ cur_poc = h->cur_pic_ptr->poc;
+ } else {
+ cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
+ }
+ if (h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
+ h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2 * cur_poc) {
+ h->use_weight = 0;
+ h->use_weight_chroma = 0;
+ return;
+ }
+ ref_start = 0;
+ ref_count0 = h->ref_count[0];
+ ref_count1 = h->ref_count[1];
+ } else {
+ cur_poc = h->cur_pic_ptr->field_poc[field];
+ ref_start = 16;
+ ref_count0 = 16 + 2 * h->ref_count[0];
+ ref_count1 = 16 + 2 * h->ref_count[1];
+ }
+
+ h->use_weight = 2;
+ h->use_weight_chroma = 2;
+ h->luma_log2_weight_denom = 5;
+ h->chroma_log2_weight_denom = 5;
+
+ for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
+ int poc0 = h->ref_list[0][ref0].poc;
+ for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
+ int w = 32;
+ if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) {
+ int poc1 = h->ref_list[1][ref1].poc;
+ int td = av_clip(poc1 - poc0, -128, 127);
+ if (td) {
+ int tb = av_clip(cur_poc - poc0, -128, 127);
+ int tx = (16384 + (FFABS(td) >> 1)) / td;
+ int dist_scale_factor = (tb * tx + 32) >> 8;
+ if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
+ w = 64 - dist_scale_factor;
+ }
+ }
+ if (field < 0) {
+ h->implicit_weight[ref0][ref1][0] =
+ h->implicit_weight[ref0][ref1][1] = w;
+ } else {
+ h->implicit_weight[ref0][ref1][field] = w;
+ }
+ }
+ }
+}
+
+/**
+ * initialize scan tables
+ */
+static void init_scan_tables(H264Context *h)
+{
+ int i;
+ for (i = 0; i < 16; i++) {
+#define TRANSPOSE(x) (x >> 2) | ((x << 2) & 0xF)
+ h->zigzag_scan[i] = TRANSPOSE(zigzag_scan[i]);
+ h->field_scan[i] = TRANSPOSE(field_scan[i]);
+#undef TRANSPOSE
+ }
+ for (i = 0; i < 64; i++) {
+#define TRANSPOSE(x) (x >> 3) | ((x & 7) << 3)
+ h->zigzag_scan8x8[i] = TRANSPOSE(ff_zigzag_direct[i]);
+ h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
+ h->field_scan8x8[i] = TRANSPOSE(field_scan8x8[i]);
+ h->field_scan8x8_cavlc[i] = TRANSPOSE(field_scan8x8_cavlc[i]);
+#undef TRANSPOSE
+ }
+ if (h->sps.transform_bypass) { // FIXME same ugly
+ memcpy(h->zigzag_scan_q0 , zigzag_scan , sizeof(h->zigzag_scan_q0 ));
+ memcpy(h->zigzag_scan8x8_q0 , ff_zigzag_direct , sizeof(h->zigzag_scan8x8_q0 ));
+ memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
+ memcpy(h->field_scan_q0 , field_scan , sizeof(h->field_scan_q0 ));
+ memcpy(h->field_scan8x8_q0 , field_scan8x8 , sizeof(h->field_scan8x8_q0 ));
+ memcpy(h->field_scan8x8_cavlc_q0 , field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 ));
+ } else {
+ memcpy(h->zigzag_scan_q0 , h->zigzag_scan , sizeof(h->zigzag_scan_q0 ));
+ memcpy(h->zigzag_scan8x8_q0 , h->zigzag_scan8x8 , sizeof(h->zigzag_scan8x8_q0 ));
+ memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
+ memcpy(h->field_scan_q0 , h->field_scan , sizeof(h->field_scan_q0 ));
+ memcpy(h->field_scan8x8_q0 , h->field_scan8x8 , sizeof(h->field_scan8x8_q0 ));
+ memcpy(h->field_scan8x8_cavlc_q0 , h->field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 ));
+ }
+}
+
+/**
+ * Replicate H264 "master" context to thread contexts.
+ */
+static int clone_slice(H264Context *dst, H264Context *src)
+{
+ memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
+ dst->cur_pic_ptr = src->cur_pic_ptr;
+ dst->cur_pic = src->cur_pic;
+ dst->linesize = src->linesize;
+ dst->uvlinesize = src->uvlinesize;
+ dst->first_field = src->first_field;
+
+ dst->prev_poc_msb = src->prev_poc_msb;
+ dst->prev_poc_lsb = src->prev_poc_lsb;
+ dst->prev_frame_num_offset = src->prev_frame_num_offset;
+ dst->prev_frame_num = src->prev_frame_num;
+ dst->short_ref_count = src->short_ref_count;
+
+ memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
+ memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
+ memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
+
+ memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
+ memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
+
+ return 0;
+}
+
+static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback)
+{
+ switch (h->sps.bit_depth_luma) {
+ case 9:
+ if (CHROMA444(h)) {
+ if (h->avctx->colorspace == AVCOL_SPC_RGB) {
+ return AV_PIX_FMT_GBRP9;
+ } else
+ return AV_PIX_FMT_YUV444P9;
+ } else if (CHROMA422(h))
+ return AV_PIX_FMT_YUV422P9;
+ else
+ return AV_PIX_FMT_YUV420P9;
+ break;
+ case 10:
+ if (CHROMA444(h)) {
+ if (h->avctx->colorspace == AVCOL_SPC_RGB) {
+ return AV_PIX_FMT_GBRP10;
+ } else
+ return AV_PIX_FMT_YUV444P10;
+ } else if (CHROMA422(h))
+ return AV_PIX_FMT_YUV422P10;
+ else
+ return AV_PIX_FMT_YUV420P10;
+ break;
+ case 12:
+ if (CHROMA444(h)) {
+ if (h->avctx->colorspace == AVCOL_SPC_RGB) {
+ return AV_PIX_FMT_GBRP12;
+ } else
+ return AV_PIX_FMT_YUV444P12;
+ } else if (CHROMA422(h))
+ return AV_PIX_FMT_YUV422P12;
+ else
+ return AV_PIX_FMT_YUV420P12;
+ break;
+ case 14:
+ if (CHROMA444(h)) {
+ if (h->avctx->colorspace == AVCOL_SPC_RGB) {
+ return AV_PIX_FMT_GBRP14;
+ } else
+ return AV_PIX_FMT_YUV444P14;
+ } else if (CHROMA422(h))
+ return AV_PIX_FMT_YUV422P14;
+ else
+ return AV_PIX_FMT_YUV420P14;
+ break;
+ case 8:
+ if (CHROMA444(h)) {
+ if (h->avctx->colorspace == AVCOL_SPC_RGB) {
+ av_log(h->avctx, AV_LOG_DEBUG, "Detected GBR colorspace.\n");
+ return AV_PIX_FMT_GBR24P;
+ } else if (h->avctx->colorspace == AVCOL_SPC_YCGCO) {
+ av_log(h->avctx, AV_LOG_WARNING, "Detected unsupported YCgCo colorspace.\n");
+ }
+ return h->avctx->color_range == AVCOL_RANGE_JPEG ? AV_PIX_FMT_YUVJ444P
+ : AV_PIX_FMT_YUV444P;
+ } else if (CHROMA422(h)) {
+ return h->avctx->color_range == AVCOL_RANGE_JPEG ? AV_PIX_FMT_YUVJ422P
+ : AV_PIX_FMT_YUV422P;
+ } else {
+ int i;
+ const enum AVPixelFormat * fmt = h->avctx->codec->pix_fmts ?
+ h->avctx->codec->pix_fmts :
+ h->avctx->color_range == AVCOL_RANGE_JPEG ?
+ h264_hwaccel_pixfmt_list_jpeg_420 :
+ h264_hwaccel_pixfmt_list_420;
+
+ for (i=0; fmt[i] != AV_PIX_FMT_NONE; i++)
+ if (fmt[i] == h->avctx->pix_fmt && !force_callback)
+ return fmt[i];
+ return ff_thread_get_format(h->avctx, fmt);
+ }
+ break;
+ default:
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Unsupported bit depth %d\n", h->sps.bit_depth_luma);
+ return AVERROR_INVALIDDATA;
+ }
+}
+
+/* export coded and cropped frame dimensions to AVCodecContext */
+static int init_dimensions(H264Context *h)
+{
+ int width = h->width - (h->sps.crop_right + h->sps.crop_left);
+ int height = h->height - (h->sps.crop_top + h->sps.crop_bottom);
+ av_assert0(h->sps.crop_right + h->sps.crop_left < (unsigned)h->width);
+ av_assert0(h->sps.crop_top + h->sps.crop_bottom < (unsigned)h->height);
+
+ /* handle container cropping */
+ if (!h->sps.crop &&
+ FFALIGN(h->avctx->width, 16) == h->width &&
+ FFALIGN(h->avctx->height, 16) == h->height) {
+ width = h->avctx->width;
+ height = h->avctx->height;
+ }
+
+ if (width <= 0 || height <= 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "Invalid cropped dimensions: %dx%d.\n",
+ width, height);
+ if (h->avctx->err_recognition & AV_EF_EXPLODE)
+ return AVERROR_INVALIDDATA;
+
+ av_log(h->avctx, AV_LOG_WARNING, "Ignoring cropping information.\n");
+ h->sps.crop_bottom = h->sps.crop_top = h->sps.crop_right = h->sps.crop_left = 0;
+ h->sps.crop = 0;
+
+ width = h->width;
+ height = h->height;
+ }
+
+ h->avctx->coded_width = h->width;
+ h->avctx->coded_height = h->height;
+ h->avctx->width = width;
+ h->avctx->height = height;
+
+ return 0;
+}
+
+static int h264_slice_header_init(H264Context *h, int reinit)
+{
+ int nb_slices = (HAVE_THREADS &&
+ h->avctx->active_thread_type & FF_THREAD_SLICE) ?
+ h->avctx->thread_count : 1;
+ int i, ret;
+
+ h->avctx->sample_aspect_ratio = h->sps.sar;
+ av_assert0(h->avctx->sample_aspect_ratio.den);
+ av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
+ &h->chroma_x_shift, &h->chroma_y_shift);
+
+ if (h->sps.timing_info_present_flag) {
+ int64_t den = h->sps.time_scale;
+ if (h->x264_build < 44U)
+ den *= 2;
+ av_reduce(&h->avctx->time_base.num, &h->avctx->time_base.den,
+ h->sps.num_units_in_tick, den, 1 << 30);
+ }
+
+ if (reinit)
+ ff_h264_free_tables(h, 0);
+ h->first_field = 0;
+ h->prev_interlaced_frame = 1;
+
+ init_scan_tables(h);
+ ret = ff_h264_alloc_tables(h);
+ if (ret < 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
+ return ret;
+ }
+
+ if (nb_slices > H264_MAX_THREADS || (nb_slices > h->mb_height && h->mb_height)) {
+ int max_slices;
+ if (h->mb_height)
+ max_slices = FFMIN(H264_MAX_THREADS, h->mb_height);
+ else
+ max_slices = H264_MAX_THREADS;
+ av_log(h->avctx, AV_LOG_WARNING, "too many threads/slices %d,"
+ " reducing to %d\n", nb_slices, max_slices);
+ nb_slices = max_slices;
+ }
+ h->slice_context_count = nb_slices;
+
+ if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
+ ret = ff_h264_context_init(h);
+ if (ret < 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
+ return ret;
+ }
+ } else {
+ for (i = 1; i < h->slice_context_count; i++) {
+ H264Context *c;
+ c = h->thread_context[i] = av_mallocz(sizeof(H264Context));
+ if (!c)
+ return AVERROR(ENOMEM);
+ c->avctx = h->avctx;
+ if (CONFIG_ERROR_RESILIENCE) {
+ c->dsp = h->dsp;
+ }
+ c->vdsp = h->vdsp;
+ c->h264dsp = h->h264dsp;
+ c->h264qpel = h->h264qpel;
+ c->h264chroma = h->h264chroma;
+ c->sps = h->sps;
+ c->pps = h->pps;
+ c->pixel_shift = h->pixel_shift;
+ c->cur_chroma_format_idc = h->cur_chroma_format_idc;
+ c->width = h->width;
+ c->height = h->height;
+ c->linesize = h->linesize;
+ c->uvlinesize = h->uvlinesize;
+ c->chroma_x_shift = h->chroma_x_shift;
+ c->chroma_y_shift = h->chroma_y_shift;
+ c->qscale = h->qscale;
+ c->droppable = h->droppable;
+ c->data_partitioning = h->data_partitioning;
+ c->low_delay = h->low_delay;
+ c->mb_width = h->mb_width;
+ c->mb_height = h->mb_height;
+ c->mb_stride = h->mb_stride;
+ c->mb_num = h->mb_num;
+ c->flags = h->flags;
+ c->workaround_bugs = h->workaround_bugs;
+ c->pict_type = h->pict_type;
+
+ init_scan_tables(c);
+ clone_tables(c, h, i);
+ c->context_initialized = 1;
+ }
+
+ for (i = 0; i < h->slice_context_count; i++)
+ if ((ret = ff_h264_context_init(h->thread_context[i])) < 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
+ return ret;
+ }
+ }
+
+ h->context_initialized = 1;
+
+ return 0;
+}
+
+static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
+{
+ switch (a) {
+ case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P;
+ case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P;
+ case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P;
+ default:
+ return a;
+ }
+}
+
+/**
+ * Decode a slice header.
+ * This will (re)intialize the decoder and call h264_frame_start() as needed.
+ *
+ * @param h h264context
+ * @param h0 h264 master context (differs from 'h' when doing sliced based
+ * parallel decoding)
+ *
+ * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
+ */
+int ff_h264_decode_slice_header(H264Context *h, H264Context *h0)
+{
+ unsigned int first_mb_in_slice;
+ unsigned int pps_id;
+ int ret;
+ unsigned int slice_type, tmp, i, j;
+ int last_pic_structure, last_pic_droppable;
+ int must_reinit;
+ int needs_reinit = 0;
+ int field_pic_flag, bottom_field_flag;
+
+ h->qpel_put = h->h264qpel.put_h264_qpel_pixels_tab;
+ h->qpel_avg = h->h264qpel.avg_h264_qpel_pixels_tab;
+
+ first_mb_in_slice = get_ue_golomb_long(&h->gb);
+
+ if (first_mb_in_slice == 0) { // FIXME better field boundary detection
+ if (h0->current_slice && h->cur_pic_ptr && FIELD_PICTURE(h)) {
+ ff_h264_field_end(h, 1);
+ }
+
+ h0->current_slice = 0;
+ if (!h0->first_field) {
+ if (h->cur_pic_ptr && !h->droppable) {
+ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
+ h->picture_structure == PICT_BOTTOM_FIELD);
+ }
+ h->cur_pic_ptr = NULL;
+ }
+ }
+
+ slice_type = get_ue_golomb_31(&h->gb);
+ if (slice_type > 9) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "slice type %d too large at %d %d\n",
+ slice_type, h->mb_x, h->mb_y);
+ return AVERROR_INVALIDDATA;
+ }
+ if (slice_type > 4) {
+ slice_type -= 5;
+ h->slice_type_fixed = 1;
+ } else
+ h->slice_type_fixed = 0;
+
+ slice_type = golomb_to_pict_type[slice_type];
+ h->slice_type = slice_type;
+ h->slice_type_nos = slice_type & 3;
+
+ if (h->nal_unit_type == NAL_IDR_SLICE &&
+ h->slice_type_nos != AV_PICTURE_TYPE_I) {
+ av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ // to make a few old functions happy, it's wrong though
+ h->pict_type = h->slice_type;
+
+ pps_id = get_ue_golomb(&h->gb);
+ if (pps_id >= MAX_PPS_COUNT) {
+ av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", pps_id);
+ return AVERROR_INVALIDDATA;
+ }
+ if (!h0->pps_buffers[pps_id]) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "non-existing PPS %u referenced\n",
+ pps_id);
+ return AVERROR_INVALIDDATA;
+ }
+ if (h0->au_pps_id >= 0 && pps_id != h0->au_pps_id) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "PPS change from %d to %d forbidden\n",
+ h0->au_pps_id, pps_id);
+ return AVERROR_INVALIDDATA;
+ }
+ h->pps = *h0->pps_buffers[pps_id];
+
+ if (!h0->sps_buffers[h->pps.sps_id]) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "non-existing SPS %u referenced\n",
+ h->pps.sps_id);
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (h->pps.sps_id != h->sps.sps_id ||
+ h->pps.sps_id != h->current_sps_id ||
+ h0->sps_buffers[h->pps.sps_id]->new) {
+
+ h->sps = *h0->sps_buffers[h->pps.sps_id];
+
+ if (h->mb_width != h->sps.mb_width ||
+ h->mb_height != h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag) ||
+ h->avctx->bits_per_raw_sample != h->sps.bit_depth_luma ||
+ h->cur_chroma_format_idc != h->sps.chroma_format_idc
+ )
+ needs_reinit = 1;
+
+ if (h->bit_depth_luma != h->sps.bit_depth_luma ||
+ h->chroma_format_idc != h->sps.chroma_format_idc) {
+ h->bit_depth_luma = h->sps.bit_depth_luma;
+ h->chroma_format_idc = h->sps.chroma_format_idc;
+ needs_reinit = 1;
+ }
+ if ((ret = ff_h264_set_parameter_from_sps(h)) < 0)
+ return ret;
+ }
+
+ h->avctx->profile = ff_h264_get_profile(&h->sps);
+ h->avctx->level = h->sps.level_idc;
+ h->avctx->refs = h->sps.ref_frame_count;
+
+ must_reinit = (h->context_initialized &&
+ ( 16*h->sps.mb_width != h->avctx->coded_width
+ || 16*h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag) != h->avctx->coded_height
+ || h->avctx->bits_per_raw_sample != h->sps.bit_depth_luma
+ || h->cur_chroma_format_idc != h->sps.chroma_format_idc
+ || av_cmp_q(h->sps.sar, h->avctx->sample_aspect_ratio)
+ || h->mb_width != h->sps.mb_width
+ || h->mb_height != h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag)
+ ));
+ if (non_j_pixfmt(h0->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h0, 0)))
+ must_reinit = 1;
+
+ h->mb_width = h->sps.mb_width;
+ h->mb_height = h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);
+ h->mb_num = h->mb_width * h->mb_height;
+ h->mb_stride = h->mb_width + 1;
+
+ h->b_stride = h->mb_width * 4;
+
+ h->chroma_y_shift = h->sps.chroma_format_idc <= 1; // 400 uses yuv420p
+
+ h->width = 16 * h->mb_width;
+ h->height = 16 * h->mb_height;
+
+ ret = init_dimensions(h);
+ if (ret < 0)
+ return ret;
+
+ if (h->sps.video_signal_type_present_flag) {
+ h->avctx->color_range = h->sps.full_range>0 ? AVCOL_RANGE_JPEG
+ : AVCOL_RANGE_MPEG;
+ if (h->sps.colour_description_present_flag) {
+ if (h->avctx->colorspace != h->sps.colorspace)
+ needs_reinit = 1;
+ h->avctx->color_primaries = h->sps.color_primaries;
+ h->avctx->color_trc = h->sps.color_trc;
+ h->avctx->colorspace = h->sps.colorspace;
+ }
+ }
+
+ if (h->context_initialized &&
+ (must_reinit || needs_reinit)) {
+ if (h != h0) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "changing width %d -> %d / height %d -> %d on "
+ "slice %d\n",
+ h->width, h->avctx->coded_width,
+ h->height, h->avctx->coded_height,
+ h0->current_slice + 1);
+ return AVERROR_INVALIDDATA;
+ }
+
+ ff_h264_flush_change(h);
+
+ if ((ret = get_pixel_format(h, 1)) < 0)
+ return ret;
+ h->avctx->pix_fmt = ret;
+
+ av_log(h->avctx, AV_LOG_INFO, "Reinit context to %dx%d, "
+ "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt));
+
+ if ((ret = h264_slice_header_init(h, 1)) < 0) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "h264_slice_header_init() failed\n");
+ return ret;
+ }
+ }
+ if (!h->context_initialized) {
+ if (h != h0) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Cannot (re-)initialize context during parallel decoding.\n");
+ return AVERROR_PATCHWELCOME;
+ }
+
+ if ((ret = get_pixel_format(h, 1)) < 0)
+ return ret;
+ h->avctx->pix_fmt = ret;
+
+ if ((ret = h264_slice_header_init(h, 0)) < 0) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "h264_slice_header_init() failed\n");
+ return ret;
+ }
+ }
+
+ if (h == h0 && h->dequant_coeff_pps != pps_id) {
+ h->dequant_coeff_pps = pps_id;
+ h264_init_dequant_tables(h);
+ }
+
+ h->frame_num = get_bits(&h->gb, h->sps.log2_max_frame_num);
+
+ h->mb_mbaff = 0;
+ h->mb_aff_frame = 0;
+ last_pic_structure = h0->picture_structure;
+ last_pic_droppable = h0->droppable;
+ h->droppable = h->nal_ref_idc == 0;
+ if (h->sps.frame_mbs_only_flag) {
+ h->picture_structure = PICT_FRAME;
+ } else {
+ if (!h->sps.direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
+ av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
+ return -1;
+ }
+ field_pic_flag = get_bits1(&h->gb);
+ if (field_pic_flag) {
+ bottom_field_flag = get_bits1(&h->gb);
+ h->picture_structure = PICT_TOP_FIELD + bottom_field_flag;
+ } else {
+ h->picture_structure = PICT_FRAME;
+ h->mb_aff_frame = h->sps.mb_aff;
+ }
+ }
+ h->mb_field_decoding_flag = h->picture_structure != PICT_FRAME;
+
+ if (h0->current_slice != 0) {
+ if (last_pic_structure != h->picture_structure ||
+ last_pic_droppable != h->droppable) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Changing field mode (%d -> %d) between slices is not allowed\n",
+ last_pic_structure, h->picture_structure);
+ h->picture_structure = last_pic_structure;
+ h->droppable = last_pic_droppable;
+ return AVERROR_INVALIDDATA;
+ } else if (!h0->cur_pic_ptr) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "unset cur_pic_ptr on slice %d\n",
+ h0->current_slice + 1);
+ return AVERROR_INVALIDDATA;
+ }
+ } else {
+ /* Shorten frame num gaps so we don't have to allocate reference
+ * frames just to throw them away */
+ if (h->frame_num != h->prev_frame_num) {
+ int unwrap_prev_frame_num = h->prev_frame_num;
+ int max_frame_num = 1 << h->sps.log2_max_frame_num;
+
+ if (unwrap_prev_frame_num > h->frame_num)
+ unwrap_prev_frame_num -= max_frame_num;
+
+ if ((h->frame_num - unwrap_prev_frame_num) > h->sps.ref_frame_count) {
+ unwrap_prev_frame_num = (h->frame_num - h->sps.ref_frame_count) - 1;
+ if (unwrap_prev_frame_num < 0)
+ unwrap_prev_frame_num += max_frame_num;
+
+ h->prev_frame_num = unwrap_prev_frame_num;
+ }
+ }
+
+ /* See if we have a decoded first field looking for a pair...
+ * Here, we're using that to see if we should mark previously
+ * decode frames as "finished".
+ * We have to do that before the "dummy" in-between frame allocation,
+ * since that can modify h->cur_pic_ptr. */
+ if (h0->first_field) {
+ assert(h0->cur_pic_ptr);
+ assert(h0->cur_pic_ptr->f.buf[0]);
+ assert(h0->cur_pic_ptr->reference != DELAYED_PIC_REF);
+
+ /* Mark old field/frame as completed */
+ if (h0->cur_pic_ptr->tf.owner == h0->avctx) {
+ ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX,
+ last_pic_structure == PICT_BOTTOM_FIELD);
+ }
+
+ /* figure out if we have a complementary field pair */
+ if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
+ /* Previous field is unmatched. Don't display it, but let it
+ * remain for reference if marked as such. */
+ if (last_pic_structure != PICT_FRAME) {
+ ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX,
+ last_pic_structure == PICT_TOP_FIELD);
+ }
+ } else {
+ if (h0->cur_pic_ptr->frame_num != h->frame_num) {
+ /* This and previous field were reference, but had
+ * different frame_nums. Consider this field first in
+ * pair. Throw away previous field except for reference
+ * purposes. */
+ if (last_pic_structure != PICT_FRAME) {
+ ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX,
+ last_pic_structure == PICT_TOP_FIELD);
+ }
+ } else {
+ /* Second field in complementary pair */
+ if (!((last_pic_structure == PICT_TOP_FIELD &&
+ h->picture_structure == PICT_BOTTOM_FIELD) ||
+ (last_pic_structure == PICT_BOTTOM_FIELD &&
+ h->picture_structure == PICT_TOP_FIELD))) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Invalid field mode combination %d/%d\n",
+ last_pic_structure, h->picture_structure);
+ h->picture_structure = last_pic_structure;
+ h->droppable = last_pic_droppable;
+ return AVERROR_INVALIDDATA;
+ } else if (last_pic_droppable != h->droppable) {
+ avpriv_request_sample(h->avctx,
+ "Found reference and non-reference fields in the same frame, which");
+ h->picture_structure = last_pic_structure;
+ h->droppable = last_pic_droppable;
+ return AVERROR_PATCHWELCOME;
+ }
+ }
+ }
+ }
+
+ while (h->frame_num != h->prev_frame_num && !h0->first_field &&
+ h->frame_num != (h->prev_frame_num + 1) % (1 << h->sps.log2_max_frame_num)) {
+ H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
+ av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
+ h->frame_num, h->prev_frame_num);
+ if (!h->sps.gaps_in_frame_num_allowed_flag)
+ for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++)
+ h->last_pocs[i] = INT_MIN;
+ ret = h264_frame_start(h);
+ if (ret < 0) {
+ h0->first_field = 0;
+ return ret;
+ }
+
+ h->prev_frame_num++;
+ h->prev_frame_num %= 1 << h->sps.log2_max_frame_num;
+ h->cur_pic_ptr->frame_num = h->prev_frame_num;
+ h->cur_pic_ptr->invalid_gap = !h->sps.gaps_in_frame_num_allowed_flag;
+ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
+ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
+ ret = ff_generate_sliding_window_mmcos(h, 1);
+ if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
+ return ret;
+ ret = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
+ if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
+ return ret;
+ /* Error concealment: If a ref is missing, copy the previous ref
+ * in its place.
+ * FIXME: Avoiding a memcpy would be nice, but ref handling makes
+ * many assumptions about there being no actual duplicates.
+ * FIXME: This does not copy padding for out-of-frame motion
+ * vectors. Given we are concealing a lost frame, this probably
+ * is not noticeable by comparison, but it should be fixed. */
+ if (h->short_ref_count) {
+ if (prev) {
+ av_image_copy(h->short_ref[0]->f.data,
+ h->short_ref[0]->f.linesize,
+ (const uint8_t **)prev->f.data,
+ prev->f.linesize,
+ h->avctx->pix_fmt,
+ h->mb_width * 16,
+ h->mb_height * 16);
+ h->short_ref[0]->poc = prev->poc + 2;
+ }
+ h->short_ref[0]->frame_num = h->prev_frame_num;
+ }
+ }
+
+ /* See if we have a decoded first field looking for a pair...
+ * We're using that to see whether to continue decoding in that
+ * frame, or to allocate a new one. */
+ if (h0->first_field) {
+ assert(h0->cur_pic_ptr);
+ assert(h0->cur_pic_ptr->f.buf[0]);
+ assert(h0->cur_pic_ptr->reference != DELAYED_PIC_REF);
+
+ /* figure out if we have a complementary field pair */
+ if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
+ /* Previous field is unmatched. Don't display it, but let it
+ * remain for reference if marked as such. */
+ h0->cur_pic_ptr = NULL;
+ h0->first_field = FIELD_PICTURE(h);
+ } else {
+ if (h0->cur_pic_ptr->frame_num != h->frame_num) {
+ ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX,
+ h0->picture_structure==PICT_BOTTOM_FIELD);
+ /* This and the previous field had different frame_nums.
+ * Consider this field first in pair. Throw away previous
+ * one except for reference purposes. */
+ h0->first_field = 1;
+ h0->cur_pic_ptr = NULL;
+ } else {
+ /* Second field in complementary pair */
+ h0->first_field = 0;
+ }
+ }
+ } else {
+ /* Frame or first field in a potentially complementary pair */
+ h0->first_field = FIELD_PICTURE(h);
+ }
+
+ if (!FIELD_PICTURE(h) || h0->first_field) {
+ if (h264_frame_start(h) < 0) {
+ h0->first_field = 0;
+ return AVERROR_INVALIDDATA;
+ }
+ } else {
+ release_unused_pictures(h, 0);
+ }
+ /* Some macroblocks can be accessed before they're available in case
+ * of lost slices, MBAFF or threading. */
+ if (FIELD_PICTURE(h)) {
+ for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++)
+ memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));
+ } else {
+ memset(h->slice_table, -1,
+ (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
+ }
+ h0->last_slice_type = -1;
+ }
+ if (h != h0 && (ret = clone_slice(h, h0)) < 0)
+ return ret;
+
+ /* can't be in alloc_tables because linesize isn't known there.
+ * FIXME: redo bipred weight to not require extra buffer? */
+ for (i = 0; i < h->slice_context_count; i++)
+ if (h->thread_context[i]) {
+ ret = alloc_scratch_buffers(h->thread_context[i], h->linesize);
+ if (ret < 0)
+ return ret;
+ }
+
+ h->cur_pic_ptr->frame_num = h->frame_num; // FIXME frame_num cleanup
+
+ av_assert1(h->mb_num == h->mb_width * h->mb_height);
+ if (first_mb_in_slice << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
+ first_mb_in_slice >= h->mb_num) {
+ av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
+ return AVERROR_INVALIDDATA;
+ }
+ h->resync_mb_x = h->mb_x = first_mb_in_slice % h->mb_width;
+ h->resync_mb_y = h->mb_y = (first_mb_in_slice / h->mb_width) <<
+ FIELD_OR_MBAFF_PICTURE(h);
+ if (h->picture_structure == PICT_BOTTOM_FIELD)
+ h->resync_mb_y = h->mb_y = h->mb_y + 1;
+ av_assert1(h->mb_y < h->mb_height);
+
+ if (h->picture_structure == PICT_FRAME) {
+ h->curr_pic_num = h->frame_num;
+ h->max_pic_num = 1 << h->sps.log2_max_frame_num;
+ } else {
+ h->curr_pic_num = 2 * h->frame_num + 1;
+ h->max_pic_num = 1 << (h->sps.log2_max_frame_num + 1);
+ }
+
+ if (h->nal_unit_type == NAL_IDR_SLICE)
+ get_ue_golomb(&h->gb); /* idr_pic_id */
+
+ if (h->sps.poc_type == 0) {
+ h->poc_lsb = get_bits(&h->gb, h->sps.log2_max_poc_lsb);
+
+ if (h->pps.pic_order_present == 1 && h->picture_structure == PICT_FRAME)
+ h->delta_poc_bottom = get_se_golomb(&h->gb);
+ }
+
+ if (h->sps.poc_type == 1 && !h->sps.delta_pic_order_always_zero_flag) {
+ h->delta_poc[0] = get_se_golomb(&h->gb);
+
+ if (h->pps.pic_order_present == 1 && h->picture_structure == PICT_FRAME)
+ h->delta_poc[1] = get_se_golomb(&h->gb);
+ }
+
+ ff_init_poc(h, h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc);
+
+ if (h->pps.redundant_pic_cnt_present)
+ h->redundant_pic_count = get_ue_golomb(&h->gb);
+
+ ret = ff_set_ref_count(h);
+ if (ret < 0)
+ return ret;
+
+ if (slice_type != AV_PICTURE_TYPE_I &&
+ (h0->current_slice == 0 ||
+ slice_type != h0->last_slice_type ||
+ memcmp(h0->last_ref_count, h0->ref_count, sizeof(h0->ref_count)))) {
+
+ ff_h264_fill_default_ref_list(h);
+ }
+
+ if (h->slice_type_nos != AV_PICTURE_TYPE_I) {
+ ret = ff_h264_decode_ref_pic_list_reordering(h);
+ if (ret < 0) {
+ h->ref_count[1] = h->ref_count[0] = 0;
+ return ret;
+ }
+ }
+
+ if ((h->pps.weighted_pred && h->slice_type_nos == AV_PICTURE_TYPE_P) ||
+ (h->pps.weighted_bipred_idc == 1 &&
+ h->slice_type_nos == AV_PICTURE_TYPE_B))
+ ff_pred_weight_table(h);
+ else if (h->pps.weighted_bipred_idc == 2 &&
+ h->slice_type_nos == AV_PICTURE_TYPE_B) {
+ implicit_weight_table(h, -1);
+ } else {
+ h->use_weight = 0;
+ for (i = 0; i < 2; i++) {
+ h->luma_weight_flag[i] = 0;
+ h->chroma_weight_flag[i] = 0;
+ }
+ }
+
+ // If frame-mt is enabled, only update mmco tables for the first slice
+ // in a field. Subsequent slices can temporarily clobber h->mmco_index
+ // or h->mmco, which will cause ref list mix-ups and decoding errors
+ // further down the line. This may break decoding if the first slice is
+ // corrupt, thus we only do this if frame-mt is enabled.
+ if (h->nal_ref_idc) {
+ ret = ff_h264_decode_ref_pic_marking(h0, &h->gb,
+ !(h->avctx->active_thread_type & FF_THREAD_FRAME) ||
+ h0->current_slice == 0);
+ if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (FRAME_MBAFF(h)) {
+ ff_h264_fill_mbaff_ref_list(h);
+
+ if (h->pps.weighted_bipred_idc == 2 && h->slice_type_nos == AV_PICTURE_TYPE_B) {
+ implicit_weight_table(h, 0);
+ implicit_weight_table(h, 1);
+ }
+ }
+
+ if (h->slice_type_nos == AV_PICTURE_TYPE_B && !h->direct_spatial_mv_pred)
+ ff_h264_direct_dist_scale_factor(h);
+ ff_h264_direct_ref_list_init(h);
+
+ if (h->slice_type_nos != AV_PICTURE_TYPE_I && h->pps.cabac) {
+ tmp = get_ue_golomb_31(&h->gb);
+ if (tmp > 2) {
+ av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
+ return AVERROR_INVALIDDATA;
+ }
+ h->cabac_init_idc = tmp;
+ }
+
+ h->last_qscale_diff = 0;
+ tmp = h->pps.init_qp + get_se_golomb(&h->gb);
+ if (tmp > 51 + 6 * (h->sps.bit_depth_luma - 8)) {
+ av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
+ return AVERROR_INVALIDDATA;
+ }
+ h->qscale = tmp;
+ h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale);
+ h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale);
+ // FIXME qscale / qp ... stuff
+ if (h->slice_type == AV_PICTURE_TYPE_SP)
+ get_bits1(&h->gb); /* sp_for_switch_flag */
+ if (h->slice_type == AV_PICTURE_TYPE_SP ||
+ h->slice_type == AV_PICTURE_TYPE_SI)
+ get_se_golomb(&h->gb); /* slice_qs_delta */
+
+ h->deblocking_filter = 1;
+ h->slice_alpha_c0_offset = 0;
+ h->slice_beta_offset = 0;
+ if (h->pps.deblocking_filter_parameters_present) {
+ tmp = get_ue_golomb_31(&h->gb);
+ if (tmp > 2) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "deblocking_filter_idc %u out of range\n", tmp);
+ return AVERROR_INVALIDDATA;
+ }
+ h->deblocking_filter = tmp;
+ if (h->deblocking_filter < 2)
+ h->deblocking_filter ^= 1; // 1<->0
+
+ if (h->deblocking_filter) {
+ h->slice_alpha_c0_offset = get_se_golomb(&h->gb) * 2;
+ h->slice_beta_offset = get_se_golomb(&h->gb) * 2;
+ if (h->slice_alpha_c0_offset > 12 ||
+ h->slice_alpha_c0_offset < -12 ||
+ h->slice_beta_offset > 12 ||
+ h->slice_beta_offset < -12) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "deblocking filter parameters %d %d out of range\n",
+ h->slice_alpha_c0_offset, h->slice_beta_offset);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ }
+
+ if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
+ (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
+ h->slice_type_nos != AV_PICTURE_TYPE_I) ||
+ (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR &&
+ h->slice_type_nos == AV_PICTURE_TYPE_B) ||
+ (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
+ h->nal_ref_idc == 0))
+ h->deblocking_filter = 0;
+
+ if (h->deblocking_filter == 1 && h0->max_contexts > 1) {
+ if (h->avctx->flags2 & CODEC_FLAG2_FAST) {
+ /* Cheat slightly for speed:
+ * Do not bother to deblock across slices. */
+ h->deblocking_filter = 2;
+ } else {
+ h0->max_contexts = 1;
+ if (!h0->single_decode_warning) {
+ av_log(h->avctx, AV_LOG_INFO,
+ "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
+ h0->single_decode_warning = 1;
+ }
+ if (h != h0) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Deblocking switched inside frame.\n");
+ return 1;
+ }
+ }
+ }
+ h->qp_thresh = 15 -
+ FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset) -
+ FFMAX3(0,
+ h->pps.chroma_qp_index_offset[0],
+ h->pps.chroma_qp_index_offset[1]) +
+ 6 * (h->sps.bit_depth_luma - 8);
+
+ h0->last_slice_type = slice_type;
+ memcpy(h0->last_ref_count, h0->ref_count, sizeof(h0->last_ref_count));
+ h->slice_num = ++h0->current_slice;
+
+ if (h->slice_num)
+ h0->slice_row[(h->slice_num-1)&(MAX_SLICES-1)]= h->resync_mb_y;
+ if ( h0->slice_row[h->slice_num&(MAX_SLICES-1)] + 3 >= h->resync_mb_y
+ && h0->slice_row[h->slice_num&(MAX_SLICES-1)] <= h->resync_mb_y
+ && h->slice_num >= MAX_SLICES) {
+ //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case
+ av_log(h->avctx, AV_LOG_WARNING, "Possibly too many slices (%d >= %d), increase MAX_SLICES and recompile if there are artifacts\n", h->slice_num, MAX_SLICES);
+ }
+
+ for (j = 0; j < 2; j++) {
+ int id_list[16];
+ int *ref2frm = h->ref2frm[h->slice_num & (MAX_SLICES - 1)][j];
+ for (i = 0; i < 16; i++) {
+ id_list[i] = 60;
+ if (j < h->list_count && i < h->ref_count[j] &&
+ h->ref_list[j][i].f.buf[0]) {
+ int k;
+ AVBuffer *buf = h->ref_list[j][i].f.buf[0]->buffer;
+ for (k = 0; k < h->short_ref_count; k++)
+ if (h->short_ref[k]->f.buf[0]->buffer == buf) {
+ id_list[i] = k;
+ break;
+ }
+ for (k = 0; k < h->long_ref_count; k++)
+ if (h->long_ref[k] && h->long_ref[k]->f.buf[0]->buffer == buf) {
+ id_list[i] = h->short_ref_count + k;
+ break;
+ }
+ }
+ }
+
+ ref2frm[0] =
+ ref2frm[1] = -1;
+ for (i = 0; i < 16; i++)
+ ref2frm[i + 2] = 4 * id_list[i] + (h->ref_list[j][i].reference & 3);
+ ref2frm[18 + 0] =
+ ref2frm[18 + 1] = -1;
+ for (i = 16; i < 48; i++)
+ ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
+ (h->ref_list[j][i].reference & 3);
+ }
+
+#if CONFIG_ERROR_RESILIENCE
+ if (h->ref_count[0]) ff_h264_set_erpic(&h->er.last_pic, &h->ref_list[0][0]);
+ if (h->ref_count[1]) ff_h264_set_erpic(&h->er.next_pic, &h->ref_list[1][0]);
+#endif
+
+ h->er.ref_count = h->ref_count[0];
+ h0->au_pps_id = pps_id;
+ h->sps.new =
+ h0->sps_buffers[h->pps.sps_id]->new = 0;
+ h->current_sps_id = h->pps.sps_id;
+
+ if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
+ av_log(h->avctx, AV_LOG_DEBUG,
+ "slice:%d %s mb:%d %c%s%s pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n",
+ h->slice_num,
+ (h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"),
+ first_mb_in_slice,
+ av_get_picture_type_char(h->slice_type),
+ h->slice_type_fixed ? " fix" : "",
+ h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "",
+ pps_id, h->frame_num,
+ h->cur_pic_ptr->field_poc[0],
+ h->cur_pic_ptr->field_poc[1],
+ h->ref_count[0], h->ref_count[1],
+ h->qscale,
+ h->deblocking_filter,
+ h->slice_alpha_c0_offset, h->slice_beta_offset,
+ h->use_weight,
+ h->use_weight == 1 && h->use_weight_chroma ? "c" : "",
+ h->slice_type == AV_PICTURE_TYPE_B ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
+ }
+
+ return 0;
+}
+
+int ff_h264_get_slice_type(const H264Context *h)
+{
+ switch (h->slice_type) {
+ case AV_PICTURE_TYPE_P:
+ return 0;
+ case AV_PICTURE_TYPE_B:
+ return 1;
+ case AV_PICTURE_TYPE_I:
+ return 2;
+ case AV_PICTURE_TYPE_SP:
+ return 3;
+ case AV_PICTURE_TYPE_SI:
+ return 4;
+ default:
+ return AVERROR_INVALIDDATA;
+ }
+}
+
+static av_always_inline void fill_filter_caches_inter(H264Context *h,
+ int mb_type, int top_xy,
+ int left_xy[LEFT_MBS],
+ int top_type,
+ int left_type[LEFT_MBS],
+ int mb_xy, int list)
+{
+ int b_stride = h->b_stride;
+ int16_t(*mv_dst)[2] = &h->mv_cache[list][scan8[0]];
+ int8_t *ref_cache = &h->ref_cache[list][scan8[0]];
+ if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
+ if (USES_LIST(top_type, list)) {
+ const int b_xy = h->mb2b_xy[top_xy] + 3 * b_stride;
+ const int b8_xy = 4 * top_xy + 2;
+ int (*ref2frm)[64] = (void*)(h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2));
+ AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
+ ref_cache[0 - 1 * 8] =
+ ref_cache[1 - 1 * 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 0]];
+ ref_cache[2 - 1 * 8] =
+ ref_cache[3 - 1 * 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 1]];
+ } else {
+ AV_ZERO128(mv_dst - 1 * 8);
+ AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
+ }
+
+ if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
+ if (USES_LIST(left_type[LTOP], list)) {
+ const int b_xy = h->mb2b_xy[left_xy[LTOP]] + 3;
+ const int b8_xy = 4 * left_xy[LTOP] + 1;
+ int (*ref2frm)[64] =(void*)( h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2));
+ AV_COPY32(mv_dst - 1 + 0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
+ AV_COPY32(mv_dst - 1 + 8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
+ AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
+ AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
+ ref_cache[-1 + 0] =
+ ref_cache[-1 + 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
+ ref_cache[-1 + 16] =
+ ref_cache[-1 + 24] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
+ } else {
+ AV_ZERO32(mv_dst - 1 + 0);
+ AV_ZERO32(mv_dst - 1 + 8);
+ AV_ZERO32(mv_dst - 1 + 16);
+ AV_ZERO32(mv_dst - 1 + 24);
+ ref_cache[-1 + 0] =
+ ref_cache[-1 + 8] =
+ ref_cache[-1 + 16] =
+ ref_cache[-1 + 24] = LIST_NOT_USED;
+ }
+ }
+ }
+
+ if (!USES_LIST(mb_type, list)) {
+ fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
+ AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
+ AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
+ AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
+ AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
+ return;
+ }
+
+ {
+ int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
+ int (*ref2frm)[64] = (void*)(h->ref2frm[h->slice_num & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2));
+ uint32_t ref01 = (pack16to32(ref2frm[list][ref[0]], ref2frm[list][ref[1]]) & 0x00FF00FF) * 0x0101;
+ uint32_t ref23 = (pack16to32(ref2frm[list][ref[2]], ref2frm[list][ref[3]]) & 0x00FF00FF) * 0x0101;
+ AV_WN32A(&ref_cache[0 * 8], ref01);
+ AV_WN32A(&ref_cache[1 * 8], ref01);
+ AV_WN32A(&ref_cache[2 * 8], ref23);
+ AV_WN32A(&ref_cache[3 * 8], ref23);
+ }
+
+ {
+ int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * h->mb_x + 4 * h->mb_y * b_stride];
+ AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
+ AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
+ AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
+ AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
+ }
+}
+
+/**
+ *
+ * @return non zero if the loop filter can be skipped
+ */
+static int fill_filter_caches(H264Context *h, int mb_type)
+{
+ const int mb_xy = h->mb_xy;
+ int top_xy, left_xy[LEFT_MBS];
+ int top_type, left_type[LEFT_MBS];
+ uint8_t *nnz;
+ uint8_t *nnz_cache;
+
+ top_xy = mb_xy - (h->mb_stride << MB_FIELD(h));
+
+ /* Wow, what a mess, why didn't they simplify the interlacing & intra
+ * stuff, I can't imagine that these complex rules are worth it. */
+
+ left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
+ if (FRAME_MBAFF(h)) {
+ const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
+ const int curr_mb_field_flag = IS_INTERLACED(mb_type);
+ if (h->mb_y & 1) {
+ if (left_mb_field_flag != curr_mb_field_flag)
+ left_xy[LTOP] -= h->mb_stride;
+ } else {
+ if (curr_mb_field_flag)
+ top_xy += h->mb_stride &
+ (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
+ if (left_mb_field_flag != curr_mb_field_flag)
+ left_xy[LBOT] += h->mb_stride;
+ }
+ }
+
+ h->top_mb_xy = top_xy;
+ h->left_mb_xy[LTOP] = left_xy[LTOP];
+ h->left_mb_xy[LBOT] = left_xy[LBOT];
+ {
+ /* For sufficiently low qp, filtering wouldn't do anything.
+ * This is a conservative estimate: could also check beta_offset
+ * and more accurate chroma_qp. */
+ int qp_thresh = h->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
+ int qp = h->cur_pic.qscale_table[mb_xy];
+ if (qp <= qp_thresh &&
+ (left_xy[LTOP] < 0 ||
+ ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
+ (top_xy < 0 ||
+ ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
+ if (!FRAME_MBAFF(h))
+ return 1;
+ if ((left_xy[LTOP] < 0 ||
+ ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
+ (top_xy < h->mb_stride ||
+ ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
+ return 1;
+ }
+ }
+
+ top_type = h->cur_pic.mb_type[top_xy];
+ left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
+ left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
+ if (h->deblocking_filter == 2) {
+ if (h->slice_table[top_xy] != h->slice_num)
+ top_type = 0;
+ if (h->slice_table[left_xy[LBOT]] != h->slice_num)
+ left_type[LTOP] = left_type[LBOT] = 0;
+ } else {
+ if (h->slice_table[top_xy] == 0xFFFF)
+ top_type = 0;
+ if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
+ left_type[LTOP] = left_type[LBOT] = 0;
+ }
+ h->top_type = top_type;
+ h->left_type[LTOP] = left_type[LTOP];
+ h->left_type[LBOT] = left_type[LBOT];
+
+ if (IS_INTRA(mb_type))
+ return 0;
+
+ fill_filter_caches_inter(h, mb_type, top_xy, left_xy,
+ top_type, left_type, mb_xy, 0);
+ if (h->list_count == 2)
+ fill_filter_caches_inter(h, mb_type, top_xy, left_xy,
+ top_type, left_type, mb_xy, 1);
+
+ nnz = h->non_zero_count[mb_xy];
+ nnz_cache = h->non_zero_count_cache;
+ AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
+ AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
+ AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
+ AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
+ h->cbp = h->cbp_table[mb_xy];
+
+ if (top_type) {
+ nnz = h->non_zero_count[top_xy];
+ AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
+ }
+
+ if (left_type[LTOP]) {
+ nnz = h->non_zero_count[left_xy[LTOP]];
+ nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
+ nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
+ nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
+ nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
+ }
+
+ /* CAVLC 8x8dct requires NNZ values for residual decoding that differ
+ * from what the loop filter needs */
+ if (!CABAC(h) && h->pps.transform_8x8_mode) {
+ if (IS_8x8DCT(top_type)) {
+ nnz_cache[4 + 8 * 0] =
+ nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
+ nnz_cache[6 + 8 * 0] =
+ nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
+ }
+ if (IS_8x8DCT(left_type[LTOP])) {
+ nnz_cache[3 + 8 * 1] =
+ nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
+ }
+ if (IS_8x8DCT(left_type[LBOT])) {
+ nnz_cache[3 + 8 * 3] =
+ nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
+ }
+
+ if (IS_8x8DCT(mb_type)) {
+ nnz_cache[scan8[0]] =
+ nnz_cache[scan8[1]] =
+ nnz_cache[scan8[2]] =
+ nnz_cache[scan8[3]] = (h->cbp & 0x1000) >> 12;
+
+ nnz_cache[scan8[0 + 4]] =
+ nnz_cache[scan8[1 + 4]] =
+ nnz_cache[scan8[2 + 4]] =
+ nnz_cache[scan8[3 + 4]] = (h->cbp & 0x2000) >> 12;
+
+ nnz_cache[scan8[0 + 8]] =
+ nnz_cache[scan8[1 + 8]] =
+ nnz_cache[scan8[2 + 8]] =
+ nnz_cache[scan8[3 + 8]] = (h->cbp & 0x4000) >> 12;
+
+ nnz_cache[scan8[0 + 12]] =
+ nnz_cache[scan8[1 + 12]] =
+ nnz_cache[scan8[2 + 12]] =
+ nnz_cache[scan8[3 + 12]] = (h->cbp & 0x8000) >> 12;
+ }
+ }
+
+ return 0;
+}
+
+static void loop_filter(H264Context *h, int start_x, int end_x)
+{
+ uint8_t *dest_y, *dest_cb, *dest_cr;
+ int linesize, uvlinesize, mb_x, mb_y;
+ const int end_mb_y = h->mb_y + FRAME_MBAFF(h);
+ const int old_slice_type = h->slice_type;
+ const int pixel_shift = h->pixel_shift;
+ const int block_h = 16 >> h->chroma_y_shift;
+
+ if (h->deblocking_filter) {
+ for (mb_x = start_x; mb_x < end_x; mb_x++)
+ for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
+ int mb_xy, mb_type;
+ mb_xy = h->mb_xy = mb_x + mb_y * h->mb_stride;
+ h->slice_num = h->slice_table[mb_xy];
+ mb_type = h->cur_pic.mb_type[mb_xy];
+ h->list_count = h->list_counts[mb_xy];
+
+ if (FRAME_MBAFF(h))
+ h->mb_mbaff =
+ h->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
+
+ h->mb_x = mb_x;
+ h->mb_y = mb_y;
+ dest_y = h->cur_pic.f.data[0] +
+ ((mb_x << pixel_shift) + mb_y * h->linesize) * 16;
+ dest_cb = h->cur_pic.f.data[1] +
+ (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
+ mb_y * h->uvlinesize * block_h;
+ dest_cr = h->cur_pic.f.data[2] +
+ (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
+ mb_y * h->uvlinesize * block_h;
+ // FIXME simplify above
+
+ if (MB_FIELD(h)) {
+ linesize = h->mb_linesize = h->linesize * 2;
+ uvlinesize = h->mb_uvlinesize = h->uvlinesize * 2;
+ if (mb_y & 1) { // FIXME move out of this function?
+ dest_y -= h->linesize * 15;
+ dest_cb -= h->uvlinesize * (block_h - 1);
+ dest_cr -= h->uvlinesize * (block_h - 1);
+ }
+ } else {
+ linesize = h->mb_linesize = h->linesize;
+ uvlinesize = h->mb_uvlinesize = h->uvlinesize;
+ }
+ backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize,
+ uvlinesize, 0);
+ if (fill_filter_caches(h, mb_type))
+ continue;
+ h->chroma_qp[0] = get_chroma_qp(h, 0, h->cur_pic.qscale_table[mb_xy]);
+ h->chroma_qp[1] = get_chroma_qp(h, 1, h->cur_pic.qscale_table[mb_xy]);
+
+ if (FRAME_MBAFF(h)) {
+ ff_h264_filter_mb(h, mb_x, mb_y, dest_y, dest_cb, dest_cr,
+ linesize, uvlinesize);
+ } else {
+ ff_h264_filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb,
+ dest_cr, linesize, uvlinesize);
+ }
+ }
+ }
+ h->slice_type = old_slice_type;
+ h->mb_x = end_x;
+ h->mb_y = end_mb_y - FRAME_MBAFF(h);
+ h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale);
+ h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale);
+}
+
+static void predict_field_decoding_flag(H264Context *h)
+{
+ const int mb_xy = h->mb_x + h->mb_y * h->mb_stride;
+ int mb_type = (h->slice_table[mb_xy - 1] == h->slice_num) ?
+ h->cur_pic.mb_type[mb_xy - 1] :
+ (h->slice_table[mb_xy - h->mb_stride] == h->slice_num) ?
+ h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
+ h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
+}
+
+/**
+ * Draw edges and report progress for the last MB row.
+ */
+static void decode_finish_row(H264Context *h)
+{
+ int top = 16 * (h->mb_y >> FIELD_PICTURE(h));
+ int pic_height = 16 * h->mb_height >> FIELD_PICTURE(h);
+ int height = 16 << FRAME_MBAFF(h);
+ int deblock_border = (16 + 4) << FRAME_MBAFF(h);
+
+ if (h->deblocking_filter) {
+ if ((top + height) >= pic_height)
+ height += deblock_border;
+ top -= deblock_border;
+ }
+
+ if (top >= pic_height || (top + height) < 0)
+ return;
+
+ height = FFMIN(height, pic_height - top);
+ if (top < 0) {
+ height = top + height;
+ top = 0;
+ }
+
+ ff_h264_draw_horiz_band(h, top, height);
+
+ if (h->droppable || h->er.error_occurred)
+ return;
+
+ ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
+ h->picture_structure == PICT_BOTTOM_FIELD);
+}
+
+static void er_add_slice(H264Context *h, int startx, int starty,
+ int endx, int endy, int status)
+{
+ if (CONFIG_ERROR_RESILIENCE) {
+ ERContext *er = &h->er;
+
+ ff_er_add_slice(er, startx, starty, endx, endy, status);
+ }
+}
+
+static int decode_slice(struct AVCodecContext *avctx, void *arg)
+{
+ H264Context *h = *(void **)arg;
+ int lf_x_start = h->mb_x;
+
+ h->mb_skip_run = -1;
+
+ av_assert0(h->block_offset[15] == (4 * ((scan8[15] - scan8[0]) & 7) << h->pixel_shift) + 4 * h->linesize * ((scan8[15] - scan8[0]) >> 3));
+
+ h->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
+ avctx->codec_id != AV_CODEC_ID_H264 ||
+ (CONFIG_GRAY && (h->flags & CODEC_FLAG_GRAY));
+
+ if (!(h->avctx->active_thread_type & FF_THREAD_SLICE) && h->picture_structure == PICT_FRAME && h->er.error_status_table) {
+ const int start_i = av_clip(h->resync_mb_x + h->resync_mb_y * h->mb_width, 0, h->mb_num - 1);
+ if (start_i) {
+ int prev_status = h->er.error_status_table[h->er.mb_index2xy[start_i - 1]];
+ prev_status &= ~ VP_START;
+ if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END))
+ h->er.error_occurred = 1;
+ }
+ }
+
+ if (h->pps.cabac) {
+ /* realign */
+ align_get_bits(&h->gb);
+
+ /* init cabac */
+ ff_init_cabac_decoder(&h->cabac,
+ h->gb.buffer + get_bits_count(&h->gb) / 8,
+ (get_bits_left(&h->gb) + 7) / 8);
+
+ ff_h264_init_cabac_states(h);
+
+ for (;;) {
+ // START_TIMER
+ int ret = ff_h264_decode_mb_cabac(h);
+ int eos;
+ // STOP_TIMER("decode_mb_cabac")
+
+ if (ret >= 0)
+ ff_h264_hl_decode_mb(h);
+
+ // FIXME optimal? or let mb_decode decode 16x32 ?
+ if (ret >= 0 && FRAME_MBAFF(h)) {
+ h->mb_y++;
+
+ ret = ff_h264_decode_mb_cabac(h);
+
+ if (ret >= 0)
+ ff_h264_hl_decode_mb(h);
+ h->mb_y--;
+ }
+ eos = get_cabac_terminate(&h->cabac);
+
+ if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
+ h->cabac.bytestream > h->cabac.bytestream_end + 2) {
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1,
+ h->mb_y, ER_MB_END);
+ if (h->mb_x >= lf_x_start)
+ loop_filter(h, lf_x_start, h->mb_x + 1);
+ return 0;
+ }
+ if (h->cabac.bytestream > h->cabac.bytestream_end + 2 )
+ av_log(h->avctx, AV_LOG_DEBUG, "bytestream overread %"PTRDIFF_SPECIFIER"\n", h->cabac.bytestream_end - h->cabac.bytestream);
+ if (ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 4) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "error while decoding MB %d %d, bytestream %"PTRDIFF_SPECIFIER"\n",
+ h->mb_x, h->mb_y,
+ h->cabac.bytestream_end - h->cabac.bytestream);
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
+ h->mb_y, ER_MB_ERROR);
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (++h->mb_x >= h->mb_width) {
+ loop_filter(h, lf_x_start, h->mb_x);
+ h->mb_x = lf_x_start = 0;
+ decode_finish_row(h);
+ ++h->mb_y;
+ if (FIELD_OR_MBAFF_PICTURE(h)) {
+ ++h->mb_y;
+ if (FRAME_MBAFF(h) && h->mb_y < h->mb_height)
+ predict_field_decoding_flag(h);
+ }
+ }
+
+ if (eos || h->mb_y >= h->mb_height) {
+ tprintf(h->avctx, "slice end %d %d\n",
+ get_bits_count(&h->gb), h->gb.size_in_bits);
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1,
+ h->mb_y, ER_MB_END);
+ if (h->mb_x > lf_x_start)
+ loop_filter(h, lf_x_start, h->mb_x);
+ return 0;
+ }
+ }
+ } else {
+ for (;;) {
+ int ret = ff_h264_decode_mb_cavlc(h);
+
+ if (ret >= 0)
+ ff_h264_hl_decode_mb(h);
+
+ // FIXME optimal? or let mb_decode decode 16x32 ?
+ if (ret >= 0 && FRAME_MBAFF(h)) {
+ h->mb_y++;
+ ret = ff_h264_decode_mb_cavlc(h);
+
+ if (ret >= 0)
+ ff_h264_hl_decode_mb(h);
+ h->mb_y--;
+ }
+
+ if (ret < 0) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "error while decoding MB %d %d\n", h->mb_x, h->mb_y);
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
+ h->mb_y, ER_MB_ERROR);
+ return ret;
+ }
+
+ if (++h->mb_x >= h->mb_width) {
+ loop_filter(h, lf_x_start, h->mb_x);
+ h->mb_x = lf_x_start = 0;
+ decode_finish_row(h);
+ ++h->mb_y;
+ if (FIELD_OR_MBAFF_PICTURE(h)) {
+ ++h->mb_y;
+ if (FRAME_MBAFF(h) && h->mb_y < h->mb_height)
+ predict_field_decoding_flag(h);
+ }
+ if (h->mb_y >= h->mb_height) {
+ tprintf(h->avctx, "slice end %d %d\n",
+ get_bits_count(&h->gb), h->gb.size_in_bits);
+
+ if ( get_bits_left(&h->gb) == 0
+ || get_bits_left(&h->gb) > 0 && !(h->avctx->err_recognition & AV_EF_AGGRESSIVE)) {
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y,
+ h->mb_x - 1, h->mb_y,
+ ER_MB_END);
+
+ return 0;
+ } else {
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y,
+ h->mb_x, h->mb_y,
+ ER_MB_END);
+
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ }
+
+ if (get_bits_left(&h->gb) <= 0 && h->mb_skip_run <= 0) {
+ tprintf(h->avctx, "slice end %d %d\n",
+ get_bits_count(&h->gb), h->gb.size_in_bits);
+
+ if (get_bits_left(&h->gb) == 0) {
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y,
+ h->mb_x - 1, h->mb_y,
+ ER_MB_END);
+ if (h->mb_x > lf_x_start)
+ loop_filter(h, lf_x_start, h->mb_x);
+
+ return 0;
+ } else {
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
+ h->mb_y, ER_MB_ERROR);
+
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ }
+ }
+}
+
+/**
+ * Call decode_slice() for each context.
+ *
+ * @param h h264 master context
+ * @param context_count number of contexts to execute
+ */
+int ff_h264_execute_decode_slices(H264Context *h, unsigned context_count)
+{
+ AVCodecContext *const avctx = h->avctx;
+ H264Context *hx;
+ int i;
+
+ av_assert0(h->mb_y < h->mb_height);
+
+ if (h->avctx->hwaccel ||
+ h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
+ return 0;
+ if (context_count == 1) {
+ return decode_slice(avctx, &h);
+ } else {
+ av_assert0(context_count > 0);
+ for (i = 1; i < context_count; i++) {
+ hx = h->thread_context[i];
+ if (CONFIG_ERROR_RESILIENCE) {
+ hx->er.error_count = 0;
+ }
+ hx->x264_build = h->x264_build;
+ }
+
+ avctx->execute(avctx, decode_slice, h->thread_context,
+ NULL, context_count, sizeof(void *));
+
+ /* pull back stuff from slices to master context */
+ hx = h->thread_context[context_count - 1];
+ h->mb_x = hx->mb_x;
+ h->mb_y = hx->mb_y;
+ h->droppable = hx->droppable;
+ h->picture_structure = hx->picture_structure;
+ if (CONFIG_ERROR_RESILIENCE) {
+ for (i = 1; i < context_count; i++)
+ h->er.error_count += h->thread_context[i]->er.error_count;
+ }
+ }
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-07 20:32:03 +0000