123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147 |
- /*
- * 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.
- */
- /*!\defgroup aom AOM
- * \ingroup codecs
- * AOM is aom's newest video compression algorithm that uses motion
- * compensated prediction, Discrete Cosine Transform (DCT) coding of the
- * prediction error signal and context dependent entropy coding techniques
- * based on arithmetic principles. It features:
- * - YUV 4:2:0 image format
- * - Macro-block based coding (16x16 luma plus two 8x8 chroma)
- * - 1/4 (1/8) pixel accuracy motion compensated prediction
- * - 4x4 DCT transform
- * - 128 level linear quantizer
- * - In loop deblocking filter
- * - Context-based entropy coding
- *
- * @{
- */
- /*!\file
- * \brief Provides controls common to both the AOM encoder and decoder.
- */
- #ifndef AOM_AOM_H_
- #define AOM_AOM_H_
- #include "aom/aom_codec.h"
- #include "aom/aom_image.h"
- #ifdef __cplusplus
- extern "C" {
- #endif
- /*!\brief Control functions
- *
- * The set of macros define the control functions of AOM interface
- */
- enum aom_com_control_id {
- /*!\brief pass in an external frame into decoder to be used as reference frame
- */
- AOM_SET_POSTPROC = 3, /**< set the decoder's post processing settings */
- AOM_SET_DBG_COLOR_REF_FRAME =
- 4, /**< set the reference frames to color for each macroblock */
- AOM_SET_DBG_COLOR_MB_MODES = 5, /**< set which macro block modes to color */
- AOM_SET_DBG_COLOR_B_MODES = 6, /**< set which blocks modes to color */
- AOM_SET_DBG_DISPLAY_MV = 7, /**< set which motion vector modes to draw */
- /* TODO(jkoleszar): The encoder incorrectly reuses some of these values (5+)
- * for its control ids. These should be migrated to something like the
- * AOM_DECODER_CTRL_ID_START range next time we're ready to break the ABI.
- */
- AV1_GET_REFERENCE = 128, /**< get a pointer to a reference frame */
- AV1_SET_REFERENCE = 129, /**< write a frame into a reference buffer */
- AV1_COPY_REFERENCE =
- 130, /**< get a copy of reference frame from the decoder */
- AOM_COMMON_CTRL_ID_MAX,
- AV1_GET_NEW_FRAME_IMAGE = 192, /**< get a pointer to the new frame */
- AV1_COPY_NEW_FRAME_IMAGE =
- 193, /**< copy the new frame to an external buffer */
- AOM_DECODER_CTRL_ID_START = 256
- };
- /*!\brief post process flags
- *
- * The set of macros define AOM decoder post processing flags
- */
- enum aom_postproc_level {
- AOM_NOFILTERING = 0,
- AOM_DEBLOCK = 1 << 0,
- AOM_DEMACROBLOCK = 1 << 1,
- AOM_ADDNOISE = 1 << 2,
- AOM_DEBUG_TXT_FRAME_INFO = 1 << 3, /**< print frame information */
- AOM_DEBUG_TXT_MBLK_MODES =
- 1 << 4, /**< print macro block modes over each macro block */
- AOM_DEBUG_TXT_DC_DIFF = 1 << 5, /**< print dc diff for each macro block */
- AOM_DEBUG_TXT_RATE_INFO = 1 << 6, /**< print video rate info (encoder only) */
- AOM_MFQE = 1 << 10
- };
- /*!\brief post process flags
- *
- * This define a structure that describe the post processing settings. For
- * the best objective measure (using the PSNR metric) set post_proc_flag
- * to AOM_DEBLOCK and deblocking_level to 1.
- */
- typedef struct aom_postproc_cfg {
- /*!\brief the types of post processing to be done, should be combination of
- * "aom_postproc_level" */
- int post_proc_flag;
- int deblocking_level; /**< the strength of deblocking, valid range [0, 16] */
- int noise_level; /**< the strength of additive noise, valid range [0, 16] */
- } aom_postproc_cfg_t;
- /*!\brief AV1 specific reference frame data struct
- *
- * Define the data struct to access av1 reference frames.
- */
- typedef struct av1_ref_frame {
- int idx; /**< frame index to get (input) */
- int use_external_ref; /**< Directly use external ref buffer(decoder only) */
- aom_image_t img; /**< img structure to populate (output) */
- } av1_ref_frame_t;
- /*!\cond */
- /*!\brief aom decoder control function parameter type
- *
- * defines the data type for each of AOM decoder control function requires
- */
- AOM_CTRL_USE_TYPE(AOM_SET_POSTPROC, aom_postproc_cfg_t *)
- #define AOM_CTRL_AOM_SET_POSTPROC
- AOM_CTRL_USE_TYPE(AOM_SET_DBG_COLOR_REF_FRAME, int)
- #define AOM_CTRL_AOM_SET_DBG_COLOR_REF_FRAME
- AOM_CTRL_USE_TYPE(AOM_SET_DBG_COLOR_MB_MODES, int)
- #define AOM_CTRL_AOM_SET_DBG_COLOR_MB_MODES
- AOM_CTRL_USE_TYPE(AOM_SET_DBG_COLOR_B_MODES, int)
- #define AOM_CTRL_AOM_SET_DBG_COLOR_B_MODES
- AOM_CTRL_USE_TYPE(AOM_SET_DBG_DISPLAY_MV, int)
- #define AOM_CTRL_AOM_SET_DBG_DISPLAY_MV
- AOM_CTRL_USE_TYPE(AV1_GET_REFERENCE, av1_ref_frame_t *)
- #define AOM_CTRL_AV1_GET_REFERENCE
- AOM_CTRL_USE_TYPE(AV1_SET_REFERENCE, av1_ref_frame_t *)
- #define AOM_CTRL_AV1_SET_REFERENCE
- AOM_CTRL_USE_TYPE(AV1_COPY_REFERENCE, av1_ref_frame_t *)
- #define AOM_CTRL_AV1_COPY_REFERENCE
- AOM_CTRL_USE_TYPE(AV1_GET_NEW_FRAME_IMAGE, aom_image_t *)
- #define AOM_CTRL_AV1_GET_NEW_FRAME_IMAGE
- AOM_CTRL_USE_TYPE(AV1_COPY_NEW_FRAME_IMAGE, aom_image_t *)
- #define AOM_CTRL_AV1_COPY_NEW_FRAME_IMAGE
- /*!\endcond */
- /*! @} - end defgroup aom */
- #ifdef __cplusplus
- } // extern "C"
- #endif
- #endif // AOM_AOM_H_
|