path: root/vpx/vp8cx.h

/*
 *  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.
 */
#ifndef VPX_VPX_VP8CX_H_
#define VPX_VPX_VP8CX_H_

/*!\defgroup vp8_encoder WebM VP8/VP9 Encoder
 * \ingroup vp8
 *
 * @{
 */
#include "./vp8.h"
#include "./vpx_encoder.h"
#include "./vpx_ext_ratectrl.h"

/*!\file
 * \brief Provides definitions for using VP8 or VP9 encoder algorithm within the
 *        vpx Codec Interface.
 */

#ifdef __cplusplus
extern "C" {
#endif

/*!\name Algorithm interface for VP8
 *
 * This interface provides the capability to encode raw VP8 streams.
 * @{
 */

/*!\brief A single instance of the VP8 encoder.
 *\deprecated This access mechanism is provided for backwards compatibility;
 * prefer vpx_codec_vp8_cx().
 */
extern vpx_codec_iface_t vpx_codec_vp8_cx_algo;

/*!\brief The interface to the VP8 encoder.
 */
extern vpx_codec_iface_t *vpx_codec_vp8_cx(void);
/*!@} - end algorithm interface member group*/

/*!\name Algorithm interface for VP9
 *
 * This interface provides the capability to encode raw VP9 streams.
 * @{
 */

/*!\brief A single instance of the VP9 encoder.
 *\deprecated This access mechanism is provided for backwards compatibility;
 * prefer vpx_codec_vp9_cx().
 */
extern vpx_codec_iface_t vpx_codec_vp9_cx_algo;

/*!\brief The interface to the VP9 encoder.
 */
extern vpx_codec_iface_t *vpx_codec_vp9_cx(void);
/*!@} - end algorithm interface member group*/

/*
 * Algorithm Flags
 */

/*!\brief Don't reference the last frame
 *
 * When this flag is set, the encoder will not use the last frame as a
 * predictor. When not set, the encoder will choose whether to use the
 * last frame or not automatically.
 */
#define VP8_EFLAG_NO_REF_LAST (1 << 16)

/*!\brief Don't reference the golden frame
 *
 * When this flag is set, the encoder will not use the golden frame as a
 * predictor. When not set, the encoder will choose whether to use the
 * golden frame or not automatically.
 */
#define VP8_EFLAG_NO_REF_GF (1 << 17)

/*!\brief Don't reference the alternate reference frame
 *
 * When this flag is set, the encoder will not use the alt ref frame as a
 * predictor. When not set, the encoder will choose whether to use the
 * alt ref frame or not automatically.
 */
#define VP8_EFLAG_NO_REF_ARF (1 << 21)

/*!\brief Don't update the last frame
 *
 * When this flag is set, the encoder will not update the last frame with
 * the contents of the current frame.
 */
#define VP8_EFLAG_NO_UPD_LAST (1 << 18)

/*!\brief Don't update the golden frame
 *
 * When this flag is set, the encoder will not update the golden frame with
 * the contents of the current frame.
 */
#define VP8_EFLAG_NO_UPD_GF (1 << 22)

/*!\brief Don't update the alternate reference frame
 *
 * When this flag is set, the encoder will not update the alt ref frame with
 * the contents of the current frame.
 */
#define VP8_EFLAG_NO_UPD_ARF (1 << 23)

/*!\brief Force golden frame update
 *
 * When this flag is set, the encoder copy the contents of the current frame
 * to the golden frame buffer.
 */
#define VP8_EFLAG_FORCE_GF (1 << 19)

/*!\brief Force alternate reference frame update
 *
 * When this flag is set, the encoder copy the contents of the current frame
 * to the alternate reference frame buffer.
 */
#define VP8_EFLAG_FORCE_ARF (1 << 24)

/*!\brief Disable entropy update
 *
 * When this flag is set, the encoder will not update its internal entropy
 * model based on the entropy of this frame.
 */
#define VP8_EFLAG_NO_UPD_ENTROPY (1 << 20)

/*!\brief VPx encoder control functions
 *
 * This set of macros define the control functions available for VPx
 * encoder interface.
 *
 * \sa #vpx_codec_control
 */
enum vp8e_enc_control_id {
  /*!\brief Codec control function to pass an ROI map to encoder.
   *
   * Supported in codecs: VP8
   */
  VP8E_SET_ROI_MAP = 8,

  /*!\brief Codec control function to pass an Active map to encoder.
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_SET_ACTIVEMAP,

  /*!\brief Codec control function to set encoder scaling mode.
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_SET_SCALEMODE = 11,

  /*!\brief Codec control function to set encoder internal speed settings.
   *
   * Changes in this value influences, among others, the encoder's selection
   * of motion estimation methods. Values greater than 0 will increase encoder
   * speed at the expense of quality.
   *
   * \note Valid range for VP8: -16..16
   * \note Valid range for VP9: -9..9
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_SET_CPUUSED = 13,

  /*!\brief Codec control function to enable automatic use of arf frames.
   *
   * \note Valid range for VP8: 0..1
   * \note Valid range for VP9: 0..6
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_SET_ENABLEAUTOALTREF,

  /*!\brief control function to set noise sensitivity
   *
   * 0: off, 1: OnYOnly, 2: OnYUV,
   * 3: OnYUVAggressive, 4: Adaptive
   *
   * Supported in codecs: VP8
   */
  VP8E_SET_NOISE_SENSITIVITY,

  /*!\brief Codec control function to set higher sharpness at the expense
   * of a lower PSNR.
   *
   * \note Valid range: 0..7
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_SET_SHARPNESS,

  /*!\brief Codec control function to set the threshold for MBs treated static.
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_SET_STATIC_THRESHOLD,

  /*!\brief Codec control function to set the number of token partitions.
   *
   * Supported in codecs: VP8
   */
  VP8E_SET_TOKEN_PARTITIONS,

  /*!\brief Codec control function to get last quantizer chosen by the encoder.
   *
   * Return value uses internal quantizer scale defined by the codec.
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_GET_LAST_QUANTIZER,

  /*!\brief Codec control function to get last quantizer chosen by the encoder.
   *
   * Return value uses the 0..63 scale as used by the rc_*_quantizer config
   * parameters.
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_GET_LAST_QUANTIZER_64,

  /*!\brief Codec control function to set the max no of frames to create arf.
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_SET_ARNR_MAXFRAMES,

  /*!\brief Codec control function to set the filter strength for the arf.
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_SET_ARNR_STRENGTH,

  /*!\deprecated control function to set the filter type to use for the arf. */
  VP8E_SET_ARNR_TYPE,

  /*!\brief Codec control function to set visual tuning.
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_SET_TUNING,

  /*!\brief Codec control function to set constrained / constant quality level.
   *
   * \attention For this value to be used vpx_codec_enc_cfg_t::rc_end_usage must
   *            be set to #VPX_CQ or #VPX_Q
   * \note Valid range: 0..63
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_SET_CQ_LEVEL,

  /*!\brief Codec control function to set Max data rate for Intra frames.
   *
   * This value controls additional clamping on the maximum size of a
   * keyframe. It is expressed as a percentage of the average
   * per-frame bitrate, with the special (and default) value 0 meaning
   * unlimited, or no additional clamping beyond the codec's built-in
   * algorithm.
   *
   * For example, to allocate no more than 4.5 frames worth of bitrate
   * to a keyframe, set this to 450.
   *
   * Supported in codecs: VP8, VP9
   */
  VP8E_SET_MAX_INTRA_BITRATE_PCT,

  /*!\brief Codec control function to set reference and update frame flags.
   *
   *  Supported in codecs: VP8
   */
  VP8E_SET_FRAME_FLAGS,

  /*!\brief Codec control function to set max data rate for Inter frames.
   *
   * This value controls additional clamping on the maximum size of an
   * inter frame. It is expressed as a percentage of the average
   * per-frame bitrate, with the special (and default) value 0 meaning
   * unlimited, or no additional clamping beyond the codec's built-in
   * algorithm.
   *
   * For example, to allow no more than 4.5 frames worth of bitrate
   * to an inter frame, set this to 450.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_MAX_INTER_BITRATE_PCT,

  /*!\brief Boost percentage for Golden Frame in CBR mode.
   *
   * This value controls the amount of boost given to Golden Frame in
   * CBR mode. It is expressed as a percentage of the average
   * per-frame bitrate, with the special (and default) value 0 meaning
   * the feature is off, i.e., no golden frame boost in CBR mode and
   * average bitrate target is used.
   *
   * For example, to allow 100% more bits, i.e, 2X, in a golden frame
   * than average frame, set this to 100.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_GF_CBR_BOOST_PCT,

  /*!\brief Codec control function to set the temporal layer id.
   *
   * For temporal scalability: this control allows the application to set the
   * layer id for each frame to be encoded. Note that this control must be set
   * for every frame prior to encoding. The usage of this control function
   * supersedes the internal temporal pattern counter, which is now deprecated.
   *
   * Supported in codecs: VP8
   */
  VP8E_SET_TEMPORAL_LAYER_ID,

  /*!\brief Codec control function to set encoder screen content mode.
   *
   * 0: off, 1: On, 2: On with more aggressive rate control.
   *
   * Supported in codecs: VP8
   */
  VP8E_SET_SCREEN_CONTENT_MODE,

  /*!\brief Codec control function to set lossless encoding mode.
   *
   * VP9 can operate in lossless encoding mode, in which the bitstream
   * produced will be able to decode and reconstruct a perfect copy of
   * input source. This control function provides a mean to switch encoder
   * into lossless coding mode(1) or normal coding mode(0) that may be lossy.
   *                          0 = lossy coding mode
   *                          1 = lossless coding mode
   *
   *  By default, encoder operates in normal coding mode (maybe lossy).
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_LOSSLESS,

  /*!\brief Codec control function to set number of tile columns.
   *
   * In encoding and decoding, VP9 allows an input image frame be partitioned
   * into separated vertical tile columns, which can be encoded or decoded
   * independently. This enables easy implementation of parallel encoding and
   * decoding. This control requests the encoder to use column tiles in
   * encoding an input frame, with number of tile columns (in Log2 unit) as
   * the parameter:
   *             0 = 1 tile column
   *             1 = 2 tile columns
   *             2 = 4 tile columns
   *             .....
   *             n = 2**n tile columns
   * The requested tile columns will be capped by the encoder based on image
   * size limitations (The minimum width of a tile column is 256 pixels, the
   * maximum is 4096).
   *
   * By default, the value is 6, i.e., the maximum number of tiles supported by
   * the resolution.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_TILE_COLUMNS,

  /*!\brief Codec control function to set number of tile rows.
   *
   * In encoding and decoding, VP9 allows an input image frame be partitioned
   * into separated horizontal tile rows. Tile rows are encoded or decoded
   * sequentially. Even though encoding/decoding of later tile rows depends on
   * earlier ones, this allows the encoder to output data packets for tile rows
   * prior to completely processing all tile rows in a frame, thereby reducing
   * the latency in processing between input and output. The parameter
   * for this control describes the number of tile rows, which has a valid
   * range [0, 2]:
   *            0 = 1 tile row
   *            1 = 2 tile rows
   *            2 = 4 tile rows
   *
   * By default, the value is 0, i.e. one single row tile for entire image.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_TILE_ROWS,

  /*!\brief Codec control function to enable frame parallel decoding feature.
   *
   * VP9 has a bitstream feature to reduce decoding dependency between frames
   * by turning off backward update of probability context used in encoding
   * and decoding. This allows staged parallel processing of more than one
   * video frame in the decoder. This control function provides a means to
   * turn this feature on or off for bitstreams produced by encoder.
   *
   * By default, this feature is on.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_FRAME_PARALLEL_DECODING,

  /*!\brief Codec control function to set adaptive quantization mode.
   *
   * VP9 has a segment based feature that allows encoder to adaptively change
   * quantization parameter for each segment within a frame to improve the
   * subjective quality. This control makes encoder operate in one of the
   * several AQ_modes supported.
   *
   * By default, encoder operates with AQ_Mode 0(adaptive quantization off).
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_AQ_MODE,

  /*!\brief Codec control function to enable/disable periodic Q boost.
   *
   * One VP9 encoder speed feature is to enable quality boost by lowering
   * frame level Q periodically. This control function provides a mean to
   * turn on/off this feature.
   *               0 = off
   *               1 = on
   *
   * By default, the encoder is allowed to use this feature for appropriate
   * encoding modes.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_FRAME_PERIODIC_BOOST,

  /*!\brief Codec control function to set noise sensitivity.
   *
   *  0: off, 1: On(YOnly), 2: For SVC only, on top two spatial layers(YOnly)
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_NOISE_SENSITIVITY,

  /*!\brief Codec control function to turn on/off SVC in encoder.
   * \note Return value is VPX_CODEC_INVALID_PARAM if the encoder does not
   *       support SVC in its current encoding mode
   *  0: off, 1: on
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_SVC,

  /*!\brief Codec control function to pass an ROI map to encoder.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_ROI_MAP,

  /*!\brief Codec control function to set parameters for SVC.
   * \note Parameters contain min_q, max_q, scaling factor for each of the
   *       SVC layers.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_SVC_PARAMETERS,

  /*!\brief Codec control function to set svc layer for spatial and temporal.
   * \note Valid ranges: 0..#vpx_codec_enc_cfg::ss_number_layers for spatial
   *                     layer and 0..#vpx_codec_enc_cfg::ts_number_layers for
   *                     temporal layer.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_SVC_LAYER_ID,

  /*!\brief Codec control function to set content type.
   * \note Valid parameter range:
   *              VP9E_CONTENT_DEFAULT = Regular video content (Default)
   *              VP9E_CONTENT_SCREEN  = Screen capture content
   *              VP9E_CONTENT_FILM    = Film content: improves grain retention
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_TUNE_CONTENT,

  /*!\brief Codec control function to get svc layer ID.
   * \note The layer ID returned is for the data packet from the registered
   *       callback function.
   *
   * Supported in codecs: VP9
   */
  VP9E_GET_SVC_LAYER_ID,

  /*!\brief Codec control function to register callback to get per layer packet.
   * \note Parameter for this control function is a structure with a callback
   *       function and a pointer to private data used by the callback.
   *
   * Supported in codecs: VP9
   */
  VP9E_REGISTER_CX_CALLBACK,

  /*!\brief Codec control function to set color space info.
   * \note Valid ranges: 0..7, default is "UNKNOWN".
   *                     0 = UNKNOWN,
   *                     1 = BT_601
   *                     2 = BT_709
   *                     3 = SMPTE_170
   *                     4 = SMPTE_240
   *                     5 = BT_2020
   *                     6 = RESERVED
   *                     7 = SRGB
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_COLOR_SPACE,

  /*!\brief Codec control function to set minimum interval between GF/ARF frames
   *
   * By default the value is set as 4.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_MIN_GF_INTERVAL = 48,

  /*!\brief Codec control function to set minimum interval between GF/ARF frames
   *
   * By default the value is set as 16.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_MAX_GF_INTERVAL,

  /*!\brief Codec control function to get an Active map back from the encoder.
   *
   * Supported in codecs: VP9
   */
  VP9E_GET_ACTIVEMAP,

  /*!\brief Codec control function to set color range bit.
   * \note Valid ranges: 0..1, default is 0
   *                     0 = Limited range (16..235 or HBD equivalent)
   *                     1 = Full range (0..255 or HBD equivalent)
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_COLOR_RANGE,

  /*!\brief Codec control function to set the frame flags and buffer indices
   * for spatial layers. The frame flags and buffer indices are set using the
   * struct #vpx_svc_ref_frame_config defined below.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_SVC_REF_FRAME_CONFIG,

  /*!\brief Codec control function to set intended rendering image size.
   *
   * By default, this is identical to the image size in pixels.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_RENDER_SIZE,

  /*!\brief Codec control function to set target level.
   *
   * 255: off (default); 0: only keep level stats; 10: target for level 1.0;
   * 11: target for level 1.1; ... 62: target for level 6.2
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_TARGET_LEVEL,

  /*!\brief Codec control function to set row level multi-threading.
   *
   * 0 : off, 1 : on
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_ROW_MT,

  /*!\brief Codec control function to get bitstream level.
   *
   * Supported in codecs: VP9
   */
  VP9E_GET_LEVEL,

  /*!\brief Codec control function to enable/disable special mode for altref
   *        adaptive quantization. You can use it with --aq-mode concurrently.
   *
   * Enable special adaptive quantization for altref frames based on their
   * expected prediction quality for the future frames.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_ALT_REF_AQ,

  /*!\brief Boost percentage for Golden Frame in CBR mode.
   *
   * This value controls the amount of boost given to Golden Frame in
   * CBR mode. It is expressed as a percentage of the average
   * per-frame bitrate, with the special (and default) value 0 meaning
   * the feature is off, i.e., no golden frame boost in CBR mode and
   * average bitrate target is used.
   *
   * For example, to allow 100% more bits, i.e, 2X, in a golden frame
   * than average frame, set this to 100.
   *
   * Supported in codecs: VP8
   */
  VP8E_SET_GF_CBR_BOOST_PCT,

  /*!\brief Codec control function to enable the extreme motion vector unit test
   * in VP9. Please note that this is only used in motion vector unit test.
   *
   * 0 : off, 1 : MAX_EXTREME_MV, 2 : MIN_EXTREME_MV
   *
   * Supported in codecs: VP9
   */
  VP9E_ENABLE_MOTION_VECTOR_UNIT_TEST,

  /*!\brief Codec control function to constrain the inter-layer prediction
   * (prediction of lower spatial resolution) in VP9 SVC.
   *
   * 0 : inter-layer prediction on, 1 : off, 2 : off only on non-key frames
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_SVC_INTER_LAYER_PRED,

  /*!\brief Codec control function to set mode and thresholds for frame
   *  dropping in SVC. Drop frame thresholds are set per-layer. Mode is set as:
   * 0 : layer-dependent dropping, 1 : constrained dropping, current layer drop
   * forces drop on all upper layers. Default mode is 0.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_SVC_FRAME_DROP_LAYER,

  /*!\brief Codec control function to get the refresh and reference flags and
   * the buffer indices, up to the last encoded spatial layer.
   *
   * Supported in codecs: VP9
   */
  VP9E_GET_SVC_REF_FRAME_CONFIG,

  /*!\brief Codec control function to enable/disable use of golden reference as
   * a second temporal reference for SVC. Only used when inter-layer prediction
   * is disabled on INTER frames.
   *
   * 0: Off, 1: Enabled (default)
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_SVC_GF_TEMPORAL_REF,

  /*!\brief Codec control function to enable spatial layer sync frame, for any
   * spatial layer. Enabling it for layer k means spatial layer k will disable
   * all temporal prediction, but keep the inter-layer prediction. It will
   * refresh any temporal reference buffer for that layer, and reset the
   * temporal layer for the superframe to 0. Setting the layer sync for base
   * spatial layer forces a key frame. Default is off (0) for all spatial
   * layers. Spatial layer sync flag is reset to 0 after each encoded layer,
   * so when control is invoked it is only used for the current superframe.
   *
   * 0: Off (default), 1: Enabled
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_SVC_SPATIAL_LAYER_SYNC,

  /*!\brief Codec control function to enable temporal dependency model.
   *
   * Vp9 allows the encoder to run temporal dependency model and use it to
   * improve the compression performance. To enable, set this parameter to be
   * 1. The default value is set to be 1.
   */
  VP9E_SET_TPL,

  /*!\brief Codec control function to enable postencode frame drop.
   *
   * This will allow encoder to drop frame after it's encoded.
   *
   * 0: Off (default), 1: Enabled
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_POSTENCODE_DROP,

  /*!\brief Codec control function to set delta q for uv.
   *
   * Cap it at +/-15.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_DELTA_Q_UV,

  /*!\brief Codec control function to disable increase Q on overshoot in CBR.
   *
   * 0: On (default), 1: Disable.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_DISABLE_OVERSHOOT_MAXQ_CBR,

  /*!\brief Codec control function to disable loopfilter.
   *
   * 0: Loopfilter on all frames, 1: Disable on non reference frames.
   * 2: Disable on all frames.
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_DISABLE_LOOPFILTER,

  /*!\brief Codec control function to enable external rate control library.
   *
   * args[0]: path of the rate control library
   *
   * args[1]: private config of the rate control library
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_EXTERNAL_RATE_CONTROL,

  /*!\brief Codec control to disable internal features in rate control.
   *
   * This will do 3 things, only for 1 pass:
   *  - Turn off low motion computation
   *  - Turn off gf update constraint on key frame frequency
   *  - Turn off content mode for cyclic refresh
   *
   * With those, the rate control is expected to work exactly the same as the
   * interface provided in ratectrl_rtc.cc/h
   *
   * Supported in codecs: VP9
   */
  VP9E_SET_RTC_EXTERNAL_RATECTRL,

  /*!\brief Codec control function to get loopfilter level in the encoder.
   *
   * Supported in codecs: VP9
   */
  VP9E_GET_LOOPFILTER_LEVEL,

  /*!\brief Codec control to get last quantizers for all spatial layers.
   *
   * Return value uses an array of internal quantizers scale defined by the
   * codec, for all spatial layers.
   * The size of the array passed in should be #VPX_SS_MAX_LAYERS.
   *
   * Supported in codecs: VP9
   */
  VP9E_GET_LAST_QUANTIZER_SVC_LAYERS,

  /*!\brief Codec control to disable internal features in rate control.
   *
   * This will turn off cyclic refresh for vp8.
   *
   * With this, the rate control is expected to work exactly the same as the
   * interface provided in vp8_ratectrl_rtc.cc/h
   *
   * Supported in codecs: VP8
   */
  VP8E_SET_RTC_EXTERNAL_RATECTRL,

  /*!\brief Codec control to set quantizer for the next frame.
   *
   * This will turn off cyclic refresh. Only applicable to 1-pass without
   * spatial layers.
   *
   * Supported in codecs: VP9
   *
   */
  VP9E_SET_QUANTIZER_ONE_PASS,
};

/*!\brief vpx 1-D scaling mode
 *
 * This set of constants define 1-D vpx scaling modes
 */
typedef enum vpx_scaling_mode_1d {
  VP8E_NORMAL = 0,
  VP8E_FOURFIVE = 1,
  VP8E_THREEFIVE = 2,
  VP8E_ONETWO = 3
} VPX_SCALING_MODE;

/*!\brief Temporal layering mode enum for VP9 SVC.
 *
 * This set of macros define the different temporal layering modes.
 * Supported codecs: VP9 (in SVC mode)
 *
 */
typedef enum vp9e_temporal_layering_mode {
  /*!\brief No temporal layering.
   * Used when only spatial layering is used.
   */
  VP9E_TEMPORAL_LAYERING_MODE_NOLAYERING = 0,

  /*!\brief Bypass mode.
   * Used when application needs to control temporal layering.
   * This will only work when the number of spatial layers equals 1.
   */
  VP9E_TEMPORAL_LAYERING_MODE_BYPASS = 1,

  /*!\brief 0-1-0-1... temporal layering scheme with two temporal layers.
   */
  VP9E_TEMPORAL_LAYERING_MODE_0101 = 2,

  /*!\brief 0-2-1-2... temporal layering scheme with three temporal layers.
   */
  VP9E_TEMPORAL_LAYERING_MODE_0212 = 3
} VP9E_TEMPORAL_LAYERING_MODE;

/*!\brief  vpx region of interest map
 *
 * These defines the data structures for the region of interest map
 *
 */

typedef struct vpx_roi_map {
  /*! If ROI is enabled. */
  uint8_t enabled;
  /*! An id between 0-3 (0-7 for vp9) for each 16x16 (8x8 for VP9)
   * region within a frame. */
  unsigned char *roi_map;
  unsigned int rows; /**< Number of rows. */
  unsigned int cols; /**< Number of columns. */
  /*! VP8 only uses the first 4 segments. VP9 uses 8 segments. */
  int delta_q[8];  /**< Quantizer deltas. Valid range: [-63, 63].*/
  int delta_lf[8]; /**< Loop filter deltas. Valid range: [-63, 63].*/
  /*! skip and ref frame segment is only used in VP9. */
  int skip[8];      /**< Skip this block. */
  int ref_frame[8]; /**< Reference frame for this block. */
  /*! Static breakout threshold for each segment. Only used in VP8. */
  unsigned int static_threshold[4];
} vpx_roi_map_t;

/*!\brief  vpx active region map
 *
 * These defines the data structures for active region map
 *
 */

typedef struct vpx_active_map {
  /*!\brief specify an on (1) or off (0) each 16x16 region within a frame */
  unsigned char *active_map;
  unsigned int rows; /**< number of rows */
  unsigned int cols; /**< number of cols */
} vpx_active_map_t;

/*!\brief  vpx image scaling mode
 *
 * This defines the data structure for image scaling mode
 *
 */
typedef struct vpx_scaling_mode {
  VPX_SCALING_MODE h_scaling_mode; /**< horizontal scaling mode */
  VPX_SCALING_MODE v_scaling_mode; /**< vertical scaling mode   */
} vpx_scaling_mode_t;

/*!\brief VP8 token partition mode
 *
 * This defines VP8 partitioning mode for compressed data, i.e., the number of
 * sub-streams in the bitstream. Used for parallelized decoding.
 *
 */

typedef enum {
  VP8_ONE_TOKENPARTITION = 0,
  VP8_TWO_TOKENPARTITION = 1,
  VP8_FOUR_TOKENPARTITION = 2,
  VP8_EIGHT_TOKENPARTITION = 3
} vp8e_token_partitions;

/*!brief VP9 encoder content type */
typedef enum {
  VP9E_CONTENT_DEFAULT,
  VP9E_CONTENT_SCREEN,
  VP9E_CONTENT_FILM,
  VP9E_CONTENT_INVALID
} vp9e_tune_content;

/*!\brief VP8 model tuning parameters
 *
 * Changes the encoder to tune for certain types of input material.
 *
 */
typedef enum { VP8_TUNE_PSNR, VP8_TUNE_SSIM } vp8e_tuning;

/*!\brief  vp9 svc layer parameters
 *
 * This defines the spatial and temporal layer id numbers for svc encoding.
 * This is used with the #VP9E_SET_SVC_LAYER_ID control to set the spatial and
 * temporal layer id for the current frame.
 *
 */
typedef struct vpx_svc_layer_id {
  int spatial_layer_id; /**< First spatial layer to start encoding. */
  // TODO(jianj): Deprecated, to be removed.
  int temporal_layer_id; /**< Temporal layer id number. */
  int temporal_layer_id_per_spatial[VPX_SS_MAX_LAYERS]; /**< Temp layer id. */
} vpx_svc_layer_id_t;

/*!\brief vp9 svc frame flag parameters.
 *
 * This defines the frame flags and buffer indices for each spatial layer for
 * svc encoding.
 * This is used with the #VP9E_SET_SVC_REF_FRAME_CONFIG control to set frame
 * flags and buffer indices for each spatial layer for the current (super)frame.
 *
 */
typedef struct vpx_svc_ref_frame_config {
  int lst_fb_idx[VPX_SS_MAX_LAYERS];         /**< Last buffer index. */
  int gld_fb_idx[VPX_SS_MAX_LAYERS];         /**< Golden buffer index. */
  int alt_fb_idx[VPX_SS_MAX_LAYERS];         /**< Altref buffer index. */
  int update_buffer_slot[VPX_SS_MAX_LAYERS]; /**< Update reference frames. */
  // TODO(jianj): Remove update_last/golden/alt_ref, these are deprecated.
  int update_last[VPX_SS_MAX_LAYERS];       /**< Update last. */
  int update_golden[VPX_SS_MAX_LAYERS];     /**< Update golden. */
  int update_alt_ref[VPX_SS_MAX_LAYERS];    /**< Update altref. */
  int reference_last[VPX_SS_MAX_LAYERS];    /**< Last as reference. */
  int reference_golden[VPX_SS_MAX_LAYERS];  /**< Golden as reference. */
  int reference_alt_ref[VPX_SS_MAX_LAYERS]; /**< Altref as reference. */
  int64_t duration[VPX_SS_MAX_LAYERS];      /**< Duration per spatial layer. */
} vpx_svc_ref_frame_config_t;

/*!\brief VP9 svc frame dropping mode.
 *
 * This defines the frame drop mode for SVC.
 *
 */
typedef enum {
  CONSTRAINED_LAYER_DROP,
  /**< Upper layers are constrained to drop if current layer drops. */
  LAYER_DROP,           /**< Any spatial layer can drop. */
  FULL_SUPERFRAME_DROP, /**< Only full superframe can drop. */
  CONSTRAINED_FROM_ABOVE_DROP,
  /**< Lower layers are constrained to drop if current layer drops. */
} SVC_LAYER_DROP_MODE;

/*!\brief vp9 svc frame dropping parameters.
 *
 * This defines the frame drop thresholds for each spatial layer, and
 * the frame dropping mode: 0 = layer based frame dropping (default),
 * 1 = constrained dropping where current layer drop forces all upper
 * spatial layers to drop.
 */
typedef struct vpx_svc_frame_drop {
  int framedrop_thresh[VPX_SS_MAX_LAYERS]; /**< Frame drop thresholds */
  SVC_LAYER_DROP_MODE
  framedrop_mode;      /**< Layer-based or constrained dropping. */
  int max_consec_drop; /**< Maximum consecutive drops, for any layer. */
} vpx_svc_frame_drop_t;

/*!\brief vp9 svc spatial layer sync parameters.
 *
 * This defines the spatial layer sync flag, defined per spatial layer.
 *
 */
typedef struct vpx_svc_spatial_layer_sync {
  int spatial_layer_sync[VPX_SS_MAX_LAYERS]; /**< Sync layer flags */
  int base_layer_intra_only; /**< Flag for setting Intra-only frame on base */
} vpx_svc_spatial_layer_sync_t;

/*!\cond */
/*!\brief VP8 encoder control function parameter type
 *
 * Defines the data types that VP8E control functions take. Note that
 * additional common controls are defined in vp8.h
 *
 */

VPX_CTRL_USE_TYPE(VP8E_SET_ROI_MAP, vpx_roi_map_t *)
#define VPX_CTRL_VP8E_SET_ROI_MAP
VPX_CTRL_USE_TYPE(VP8E_SET_ACTIVEMAP, vpx_active_map_t *)
#define VPX_CTRL_VP8E_SET_ACTIVEMAP
VPX_CTRL_USE_TYPE(VP8E_SET_SCALEMODE, vpx_scaling_mode_t *)
#define VPX_CTRL_VP8E_SET_SCALEMODE
VPX_CTRL_USE_TYPE(VP8E_SET_CPUUSED, int)
#define VPX_CTRL_VP8E_SET_CPUUSED
VPX_CTRL_USE_TYPE(VP8E_SET_ENABLEAUTOALTREF, unsigned int)
#define VPX_CTRL_VP8E_SET_ENABLEAUTOALTREF
VPX_CTRL_USE_TYPE(VP8E_SET_NOISE_SENSITIVITY, unsigned int)
#define VPX_CTRL_VP8E_SET_NOISE_SENSITIVITY
VPX_CTRL_USE_TYPE(VP8E_SET_SHARPNESS, unsigned int)
#define VPX_CTRL_VP8E_SET_SHARPNESS
VPX_CTRL_USE_TYPE(VP8E_SET_STATIC_THRESHOLD, unsigned int)
#define VPX_CTRL_VP8E_SET_STATIC_THRESHOLD
VPX_CTRL_USE_TYPE(VP8E_SET_TOKEN_PARTITIONS, int) /* vp8e_token_partitions */
#define VPX_CTRL_VP8E_SET_TOKEN_PARTITIONS
VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER, int *)
#define VPX_CTRL_VP8E_GET_LAST_QUANTIZER
VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER_64, int *)
#define VPX_CTRL_VP8E_GET_LAST_QUANTIZER_64
VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_MAXFRAMES, unsigned int)
#define VPX_CTRL_VP8E_SET_ARNR_MAXFRAMES
VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_STRENGTH, unsigned int)
#define VPX_CTRL_VP8E_SET_ARNR_STRENGTH
VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_SET_ARNR_TYPE, unsigned int)
#define VPX_CTRL_VP8E_SET_ARNR_TYPE
VPX_CTRL_USE_TYPE(VP8E_SET_TUNING, int) /* vp8e_tuning */
#define VPX_CTRL_VP8E_SET_TUNING
VPX_CTRL_USE_TYPE(VP8E_SET_CQ_LEVEL, unsigned int)
#define VPX_CTRL_VP8E_SET_CQ_LEVEL
VPX_CTRL_USE_TYPE(VP8E_SET_MAX_INTRA_BITRATE_PCT, unsigned int)
#define VPX_CTRL_VP8E_SET_MAX_INTRA_BITRATE_PCT
VPX_CTRL_USE_TYPE(VP8E_SET_FRAME_FLAGS, int)
#define VPX_CTRL_VP8E_SET_FRAME_FLAGS
VPX_CTRL_USE_TYPE(VP9E_SET_MAX_INTER_BITRATE_PCT, unsigned int)
#define VPX_CTRL_VP9E_SET_MAX_INTER_BITRATE_PCT
VPX_CTRL_USE_TYPE(VP9E_SET_GF_CBR_BOOST_PCT, unsigned int)
#define VPX_CTRL_VP9E_SET_GF_CBR_BOOST_PCT
VPX_CTRL_USE_TYPE(VP8E_SET_TEMPORAL_LAYER_ID, int)
#define VPX_CTRL_VP8E_SET_TEMPORAL_LAYER_ID
VPX_CTRL_USE_TYPE(VP8E_SET_SCREEN_CONTENT_MODE, unsigned int)
#define VPX_CTRL_VP8E_SET_SCREEN_CONTENT_MODE
VPX_CTRL_USE_TYPE(VP9E_SET_LOSSLESS, unsigned int)
#define VPX_CTRL_VP9E_SET_LOSSLESS
VPX_CTRL_USE_TYPE(VP9E_SET_TILE_COLUMNS, int)
#define VPX_CTRL_VP9E_SET_TILE_COLUMNS
VPX_CTRL_USE_TYPE(VP9E_SET_TILE_ROWS, int)
#define VPX_CTRL_VP9E_SET_TILE_ROWS
VPX_CTRL_USE_TYPE(VP9E_SET_FRAME_PARALLEL_DECODING, unsigned int)
#define VPX_CTRL_VP9E_SET_FRAME_PARALLEL_DECODING
VPX_CTRL_USE_TYPE(VP9E_SET_AQ_MODE, unsigned int)
#define VPX_CTRL_VP9E_SET_AQ_MODE
VPX_CTRL_USE_TYPE(VP9E_SET_FRAME_PERIODIC_BOOST, unsigned int)
#define VPX_CTRL_VP9E_SET_FRAME_PERIODIC_BOOST
VPX_CTRL_USE_TYPE(VP9E_SET_NOISE_SENSITIVITY, unsigned int)
#define VPX_CTRL_VP9E_SET_NOISE_SENSITIVITY
VPX_CTRL_USE_TYPE(VP9E_SET_SVC, int)
#define VPX_CTRL_VP9E_SET_SVC
VPX_CTRL_USE_TYPE(VP9E_SET_ROI_MAP, vpx_roi_map_t *)
#define VPX_CTRL_VP9E_SET_ROI_MAP
VPX_CTRL_USE_TYPE(VP9E_SET_SVC_PARAMETERS, void *)
#define VPX_CTRL_VP9E_SET_SVC_PARAMETERS
VPX_CTRL_USE_TYPE(VP9E_SET_SVC_LAYER_ID, vpx_svc_layer_id_t *)
#define VPX_CTRL_VP9E_SET_SVC_LAYER_ID
VPX_CTRL_USE_TYPE(VP9E_SET_TUNE_CONTENT, int) /* vp9e_tune_content */
#define VPX_CTRL_VP9E_SET_TUNE_CONTENT
VPX_CTRL_USE_TYPE(VP9E_GET_SVC_LAYER_ID, vpx_svc_layer_id_t *)
#define VPX_CTRL_VP9E_GET_SVC_LAYER_ID
VPX_CTRL_USE_TYPE(VP9E_REGISTER_CX_CALLBACK, void *)
#define VPX_CTRL_VP9E_REGISTER_CX_CALLBACK
VPX_CTRL_USE_TYPE(VP9E_SET_COLOR_SPACE, int)
#define VPX_CTRL_VP9E_SET_COLOR_SPACE
VPX_CTRL_USE_TYPE(VP9E_SET_MIN_GF_INTERVAL, unsigned int)
#define VPX_CTRL_VP9E_SET_MIN_GF_INTERVAL
VPX_CTRL_USE_TYPE(VP9E_SET_MAX_GF_INTERVAL, unsigned int)
#define VPX_CTRL_VP9E_SET_MAX_GF_INTERVAL
VPX_CTRL_USE_TYPE(VP9E_GET_ACTIVEMAP, vpx_active_map_t *)
#define VPX_CTRL_VP9E_GET_ACTIVEMAP
VPX_CTRL_USE_TYPE(VP9E_SET_COLOR_RANGE, int)
#define VPX_CTRL_VP9E_SET_COLOR_RANGE
VPX_CTRL_USE_TYPE(VP9E_SET_SVC_REF_FRAME_CONFIG, vpx_svc_ref_frame_config_t *)
#define VPX_CTRL_VP9E_SET_SVC_REF_FRAME_CONFIG
VPX_CTRL_USE_TYPE(VP9E_SET_RENDER_SIZE, int *)
#define VPX_CTRL_VP9E_SET_RENDER_SIZE
VPX_CTRL_USE_TYPE(VP9E_SET_TARGET_LEVEL, unsigned int)
#define VPX_CTRL_VP9E_SET_TARGET_LEVEL
VPX_CTRL_USE_TYPE(VP9E_SET_ROW_MT, unsigned int)
#define VPX_CTRL_VP9E_SET_ROW_MT
VPX_CTRL_USE_TYPE(VP9E_GET_LEVEL, int *)
#define VPX_CTRL_VP9E_GET_LEVEL
VPX_CTRL_USE_TYPE(VP9E_SET_ALT_REF_AQ, int)
#define VPX_CTRL_VP9E_SET_ALT_REF_AQ
VPX_CTRL_USE_TYPE(VP8E_SET_GF_CBR_BOOST_PCT, unsigned int)
#define VPX_CTRL_VP8E_SET_GF_CBR_BOOST_PCT
VPX_CTRL_USE_TYPE(VP9E_ENABLE_MOTION_VECTOR_UNIT_TEST, unsigned int)
#define VPX_CTRL_VP9E_ENABLE_MOTION_VECTOR_UNIT_TEST
VPX_CTRL_USE_TYPE(VP9E_SET_SVC_INTER_LAYER_PRED, unsigned int)
#define VPX_CTRL_VP9E_SET_SVC_INTER_LAYER_PRED
VPX_CTRL_USE_TYPE(VP9E_SET_SVC_FRAME_DROP_LAYER, vpx_svc_frame_drop_t *)
#define VPX_CTRL_VP9E_SET_SVC_FRAME_DROP_LAYER
VPX_CTRL_USE_TYPE(VP9E_GET_SVC_REF_FRAME_CONFIG, vpx_svc_ref_frame_config_t *)
#define VPX_CTRL_VP9E_GET_SVC_REF_FRAME_CONFIG
VPX_CTRL_USE_TYPE(VP9E_SET_SVC_GF_TEMPORAL_REF, unsigned int)
#define VPX_CTRL_VP9E_SET_SVC_GF_TEMPORAL_REF
VPX_CTRL_USE_TYPE(VP9E_SET_SVC_SPATIAL_LAYER_SYNC,
                  vpx_svc_spatial_layer_sync_t *)
#define VPX_CTRL_VP9E_SET_SVC_SPATIAL_LAYER_SYNC
VPX_CTRL_USE_TYPE(VP9E_SET_TPL, int)
#define VPX_CTRL_VP9E_SET_TPL
VPX_CTRL_USE_TYPE(VP9E_SET_POSTENCODE_DROP, unsigned int)
#define VPX_CTRL_VP9E_SET_POSTENCODE_DROP
VPX_CTRL_USE_TYPE(VP9E_SET_DELTA_Q_UV, int)
#define VPX_CTRL_VP9E_SET_DELTA_Q_UV
VPX_CTRL_USE_TYPE(VP9E_SET_DISABLE_OVERSHOOT_MAXQ_CBR, int)
#define VPX_CTRL_VP9E_SET_DISABLE_OVERSHOOT_MAXQ_CBR
VPX_CTRL_USE_TYPE(VP9E_SET_DISABLE_LOOPFILTER, int)
#define VPX_CTRL_VP9E_SET_DISABLE_LOOPFILTER
VPX_CTRL_USE_TYPE(VP9E_SET_EXTERNAL_RATE_CONTROL, vpx_rc_funcs_t *)
#define VPX_CTRL_VP9E_SET_EXTERNAL_RATE_CONTROL
VPX_CTRL_USE_TYPE(VP9E_SET_RTC_EXTERNAL_RATECTRL, int)
#define VPX_CTRL_VP9E_SET_RTC_EXTERNAL_RATECTRL
VPX_CTRL_USE_TYPE(VP9E_GET_LOOPFILTER_LEVEL, int *)
#define VPX_CTRL_VP9E_GET_LOOPFILTER_LEVEL
VPX_CTRL_USE_TYPE(VP9E_GET_LAST_QUANTIZER_SVC_LAYERS, int *)
#define VPX_CTRL_VP9E_GET_LAST_QUANTIZER_SVC_LAYERS
VPX_CTRL_USE_TYPE(VP8E_SET_RTC_EXTERNAL_RATECTRL, int)
#define VPX_CTRL_VP8E_SET_RTC_EXTERNAL_RATECTRL
VPX_CTRL_USE_TYPE(VP9E_SET_QUANTIZER_ONE_PASS, int)
#define VPX_CTRL_VP9E_SET_QUANTIZER_ONE_PASS

/*!\endcond */
/*! @} - end defgroup vp8_encoder */
#ifdef __cplusplus
}  // extern "C"
#endif

#endif  // VPX_VPX_VP8CX_H_