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Diffstat (limited to 'media/libaom/src/aom_scale/yv12config.h')
| -rw-r--r-- | media/libaom/src/aom_scale/yv12config.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/media/libaom/src/aom_scale/yv12config.h b/media/libaom/src/aom_scale/yv12config.h new file mode 100644 index 000000000..2fb81acd7 --- /dev/null +++ b/media/libaom/src/aom_scale/yv12config.h @@ -0,0 +1,143 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#ifndef AOM_AOM_SCALE_YV12CONFIG_H_ +#define AOM_AOM_SCALE_YV12CONFIG_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "config/aom_config.h" + +#include "aom/aom_codec.h" +#include "aom/aom_frame_buffer.h" +#include "aom/aom_integer.h" + +#define AOMINNERBORDERINPIXELS 160 +#define AOM_INTERP_EXTEND 4 + +// TODO(jingning): Use unified inter predictor for encoder and +// decoder during the development process. Revisit the frame border +// to improve the decoder performance. +#if CONFIG_REDUCED_ENCODER_BORDER +#define AOM_BORDER_IN_PIXELS 160 +#else +#define AOM_BORDER_IN_PIXELS 288 +#endif // CONFIG_REDUCED_ENCODER_BORDER + +typedef struct yv12_buffer_config { + union { + struct { + int y_width; + int uv_width; + int alpha_width; + }; + int widths[3]; + }; + union { + struct { + int y_height; + int uv_height; + int alpha_height; + }; + int heights[3]; + }; + union { + struct { + int y_crop_width; + int uv_crop_width; + }; + int crop_widths[2]; + }; + union { + struct { + int y_crop_height; + int uv_crop_height; + }; + int crop_heights[2]; + }; + union { + struct { + int y_stride; + int uv_stride; + int alpha_stride; + }; + int strides[3]; + }; + union { + struct { + uint8_t *y_buffer; + uint8_t *u_buffer; + uint8_t *v_buffer; + uint8_t *alpha_buffer; + }; + uint8_t *buffers[4]; + }; + + // Indicate whether y_buffer, u_buffer, and v_buffer points to the internally + // allocated memory or external buffers. + int use_external_reference_buffers; + // This is needed to store y_buffer, u_buffer, and v_buffer when set reference + // uses an external refernece, and restore those buffer pointers after the + // external reference frame is no longer used. + uint8_t *store_buf_adr[3]; + + // If the frame is stored in a 16-bit buffer, this stores an 8-bit version + // for use in global motion detection. It is allocated on-demand. + uint8_t *y_buffer_8bit; + int buf_8bit_valid; + + uint8_t *buffer_alloc; + size_t buffer_alloc_sz; + int border; + size_t frame_size; + int subsampling_x; + int subsampling_y; + unsigned int bit_depth; + aom_color_primaries_t color_primaries; + aom_transfer_characteristics_t transfer_characteristics; + aom_matrix_coefficients_t matrix_coefficients; + int monochrome; + aom_chroma_sample_position_t chroma_sample_position; + aom_color_range_t color_range; + int render_width; + int render_height; + + int corrupted; + int flags; +} YV12_BUFFER_CONFIG; + +#define YV12_FLAG_HIGHBITDEPTH 8 + +int aom_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height, + int ss_x, int ss_y, int use_highbitdepth, int border, + int byte_alignment); + +// Updates the yv12 buffer config with the frame buffer. |byte_alignment| must +// be a power of 2, from 32 to 1024. 0 sets legacy alignment. If cb is not +// NULL, then libaom is using the frame buffer callbacks to handle memory. +// If cb is not NULL, libaom will call cb with minimum size in bytes needed +// to decode the current frame. If cb is NULL, libaom will allocate memory +// internally to decode the current frame. Returns 0 on success. Returns < 0 +// on failure. +int aom_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height, + int ss_x, int ss_y, int use_highbitdepth, + int border, int byte_alignment, + aom_codec_frame_buffer_t *fb, + aom_get_frame_buffer_cb_fn_t cb, void *cb_priv); +int aom_free_frame_buffer(YV12_BUFFER_CONFIG *ybf); + +#ifdef __cplusplus +} +#endif + +#endif // AOM_AOM_SCALE_YV12CONFIG_H_ |