Update to 8.5.0

TMessagesProj/jni/ffmpeg/include/libvpx/vp8.h

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+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+/*!\defgroup vp8 VP8
+ * \ingroup codecs
+ * VP8 is a 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 VP8 encoder and decoder.
+ */
+#ifndef VPX_VPX_VP8_H_
+#define VPX_VPX_VP8_H_
+
+#include "./vpx_codec.h"
+#include "./vpx_image.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*!\brief Control functions
+ *
+ * The set of macros define the control functions of VP8 interface
+ */
+enum vp8_com_control_id {
+  /*!\brief pass in an external frame into decoder to be used as reference frame
+   */
+  VP8_SET_REFERENCE = 1,
+  VP8_COPY_REFERENCE = 2, /**< get a copy of reference frame from the decoder */
+  VP8_SET_POSTPROC = 3,   /**< set the decoder's post processing settings  */
+
+  /* TODO(jkoleszar): The encoder incorrectly reuses some of these values (5+)
+   * for its control ids. These should be migrated to something like the
+   * VP8_DECODER_CTRL_ID_START range next time we're ready to break the ABI.
+   */
+  VP9_GET_REFERENCE = 128, /**< get a pointer to a reference frame */
+  VP8_COMMON_CTRL_ID_MAX,
+  VP8_DECODER_CTRL_ID_START = 256
+};
+
+/*!\brief post process flags
+ *
+ * The set of macros define VP8 decoder post processing flags
+ */
+enum vp8_postproc_level {
+  VP8_NOFILTERING = 0,
+  VP8_DEBLOCK = 1 << 0,
+  VP8_DEMACROBLOCK = 1 << 1,
+  VP8_ADDNOISE = 1 << 2,
+  VP8_MFQE = 1 << 3
+};
+
+/*!\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 VP8_DEBLOCK and deblocking_level to 1.
+ */
+
+typedef struct vp8_postproc_cfg {
+  /*!\brief the types of post processing to be done, should be combination of
+   * "vp8_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] */
+} vp8_postproc_cfg_t;
+
+/*!\brief reference frame type
+ *
+ * The set of macros define the type of VP8 reference frames
+ */
+typedef enum vpx_ref_frame_type {
+  VP8_LAST_FRAME = 1,
+  VP8_GOLD_FRAME = 2,
+  VP8_ALTR_FRAME = 4
+} vpx_ref_frame_type_t;
+
+/*!\brief reference frame data struct
+ *
+ * Define the data struct to access vp8 reference frames.
+ */
+typedef struct vpx_ref_frame {
+  vpx_ref_frame_type_t frame_type; /**< which reference frame */
+  vpx_image_t img;                 /**< reference frame data in image format */
+} vpx_ref_frame_t;
+
+/*!\brief VP9 specific reference frame data struct
+ *
+ * Define the data struct to access vp9 reference frames.
+ */
+typedef struct vp9_ref_frame {
+  int idx;         /**< frame index to get (input) */
+  vpx_image_t img; /**< img structure to populate (output) */
+} vp9_ref_frame_t;
+
+/*!\cond */
+/*!\brief vp8 decoder control function parameter type
+ *
+ * defines the data type for each of VP8 decoder control function requires
+ */
+VPX_CTRL_USE_TYPE(VP8_SET_REFERENCE, vpx_ref_frame_t *)
+#define VPX_CTRL_VP8_SET_REFERENCE
+VPX_CTRL_USE_TYPE(VP8_COPY_REFERENCE, vpx_ref_frame_t *)
+#define VPX_CTRL_VP8_COPY_REFERENCE
+VPX_CTRL_USE_TYPE(VP8_SET_POSTPROC, vp8_postproc_cfg_t *)
+#define VPX_CTRL_VP8_SET_POSTPROC
+VPX_CTRL_USE_TYPE(VP9_GET_REFERENCE, vp9_ref_frame_t *)
+#define VPX_CTRL_VP9_GET_REFERENCE
+
+/*!\endcond */
+/*! @} - end defgroup vp8 */
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VPX_VPX_VP8_H_