2 * Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
12 #include "vpx_ports/config.h"
14 #include "vpx_mem/vpx_mem.h"
15 #include "onyxc_int.h"
16 #include "findnearmv.h"
17 #include "entropymode.h"
18 #include "systemdependent.h"
19 #include "vpxerrors.h"
22 extern void vp8_init_scan_order_mask();
24 void vp8_update_mode_info_border(MODE_INFO *mi, int rows, int cols)
27 vpx_memset(mi - cols - 2, 0, sizeof(MODE_INFO) * (cols + 1));
29 for (i = 0; i < rows; i++)
31 vpx_memset(&mi[i*cols-1], 0, sizeof(MODE_INFO));
35 void vp8_de_alloc_frame_buffers(VP8_COMMON *oci)
39 for (i = 0; i < NUM_YV12_BUFFERS; i++)
40 vp8_yv12_de_alloc_frame_buffer(&oci->yv12_fb[i]);
42 vp8_yv12_de_alloc_frame_buffer(&oci->temp_scale_frame);
43 vp8_yv12_de_alloc_frame_buffer(&oci->post_proc_buffer);
45 vpx_free(oci->above_context);
48 oci->above_context = 0;
53 int vp8_alloc_frame_buffers(VP8_COMMON *oci, int width, int height)
57 vp8_de_alloc_frame_buffers(oci);
59 // our internal buffers are always multiples of 16
60 if ((width & 0xf) != 0)
61 width += 16 - (width & 0xf);
63 if ((height & 0xf) != 0)
64 height += 16 - (height & 0xf);
67 for (i = 0; i < NUM_YV12_BUFFERS; i++)
69 oci->fb_idx_ref_cnt[0] = 0;
71 if (vp8_yv12_alloc_frame_buffer(&oci->yv12_fb[i], width, height, VP8BORDERINPIXELS) < 0)
73 vp8_de_alloc_frame_buffers(oci);
83 oci->fb_idx_ref_cnt[0] = 1;
84 oci->fb_idx_ref_cnt[1] = 1;
85 oci->fb_idx_ref_cnt[2] = 1;
86 oci->fb_idx_ref_cnt[3] = 1;
88 if (vp8_yv12_alloc_frame_buffer(&oci->temp_scale_frame, width, 16, VP8BORDERINPIXELS) < 0)
90 vp8_de_alloc_frame_buffers(oci);
94 if (vp8_yv12_alloc_frame_buffer(&oci->post_proc_buffer, width, height, VP8BORDERINPIXELS) < 0)
96 vp8_de_alloc_frame_buffers(oci);
100 oci->mb_rows = height >> 4;
101 oci->mb_cols = width >> 4;
102 oci->MBs = oci->mb_rows * oci->mb_cols;
103 oci->mode_info_stride = oci->mb_cols + 1;
104 oci->mip = vpx_calloc((oci->mb_cols + 1) * (oci->mb_rows + 1), sizeof(MODE_INFO));
108 vp8_de_alloc_frame_buffers(oci);
109 return ALLOC_FAILURE;
112 oci->mi = oci->mip + oci->mode_info_stride + 1;
115 oci->above_context = vpx_calloc(sizeof(ENTROPY_CONTEXT_PLANES) * oci->mb_cols, 1);
117 if (!oci->above_context)
119 vp8_de_alloc_frame_buffers(oci);
120 return ALLOC_FAILURE;
123 vp8_update_mode_info_border(oci->mi, oci->mb_rows, oci->mb_cols);
127 void vp8_setup_version(VP8_COMMON *cm)
129 if (cm->version & 0x4)
131 if (!CONFIG_EXPERIMENTAL)
132 vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
133 "Bitstream was created by an experimental "
135 cm->experimental = 1;
138 switch (cm->version & 0x3)
143 cm->use_bilinear_mc_filter = 0;
149 cm->use_bilinear_mc_filter = 1;
155 cm->use_bilinear_mc_filter = 1;
161 cm->use_bilinear_mc_filter = 1;
166 void vp8_create_common(VP8_COMMON *oci)
168 vp8_machine_specific_config(oci);
169 vp8_default_coef_probs(oci);
170 vp8_init_mbmode_probs(oci);
171 vp8_default_bmode_probs(oci->fc.bmode_prob);
173 oci->mb_no_coeff_skip = 1;
175 oci->simpler_lpf = 0;
176 oci->use_bilinear_mc_filter = 0;
178 oci->multi_token_partition = ONE_PARTITION;
179 oci->clr_type = REG_YUV;
180 oci->clamp_type = RECON_CLAMP_REQUIRED;
182 // Initialise reference frame sign bias structure to defaults
183 vpx_memset(oci->ref_frame_sign_bias, 0, sizeof(oci->ref_frame_sign_bias));
185 // Default disable buffer to buffer copying
186 oci->copy_buffer_to_gf = 0;
187 oci->copy_buffer_to_arf = 0;
190 void vp8_remove_common(VP8_COMMON *oci)
192 vp8_de_alloc_frame_buffers(oci);
195 void vp8_initialize_common()
197 vp8_coef_tree_initialize();
199 vp8_entropy_mode_init();
201 vp8_init_scan_order_mask();