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      1 /*
      2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
      3  *
      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.
      9  */
     10 #ifndef VPX_VPX_VP8CX_H_
     11 #define VPX_VPX_VP8CX_H_
     12 
     13 /*!\defgroup vp8_encoder WebM VP8/VP9 Encoder
     14  * \ingroup vp8
     15  *
     16  * @{
     17  */
     18 #include "./vp8.h"
     19 #include "./vpx_encoder.h"
     20 
     21 /*!\file
     22  * \brief Provides definitions for using VP8 or VP9 encoder algorithm within the
     23  *        vpx Codec Interface.
     24  */
     25 
     26 #ifdef __cplusplus
     27 extern "C" {
     28 #endif
     29 
     30 /*!\name Algorithm interface for VP8
     31  *
     32  * This interface provides the capability to encode raw VP8 streams.
     33  * @{
     34  */
     35 extern vpx_codec_iface_t vpx_codec_vp8_cx_algo;
     36 extern vpx_codec_iface_t *vpx_codec_vp8_cx(void);
     37 /*!@} - end algorithm interface member group*/
     38 
     39 /*!\name Algorithm interface for VP9
     40  *
     41  * This interface provides the capability to encode raw VP9 streams.
     42  * @{
     43  */
     44 extern vpx_codec_iface_t vpx_codec_vp9_cx_algo;
     45 extern vpx_codec_iface_t *vpx_codec_vp9_cx(void);
     46 /*!@} - end algorithm interface member group*/
     47 
     48 /*
     49  * Algorithm Flags
     50  */
     51 
     52 /*!\brief Don't reference the last frame
     53  *
     54  * When this flag is set, the encoder will not use the last frame as a
     55  * predictor. When not set, the encoder will choose whether to use the
     56  * last frame or not automatically.
     57  */
     58 #define VP8_EFLAG_NO_REF_LAST (1 << 16)
     59 
     60 /*!\brief Don't reference the golden frame
     61  *
     62  * When this flag is set, the encoder will not use the golden frame as a
     63  * predictor. When not set, the encoder will choose whether to use the
     64  * golden frame or not automatically.
     65  */
     66 #define VP8_EFLAG_NO_REF_GF (1 << 17)
     67 
     68 /*!\brief Don't reference the alternate reference frame
     69  *
     70  * When this flag is set, the encoder will not use the alt ref frame as a
     71  * predictor. When not set, the encoder will choose whether to use the
     72  * alt ref frame or not automatically.
     73  */
     74 #define VP8_EFLAG_NO_REF_ARF (1 << 21)
     75 
     76 /*!\brief Don't update the last frame
     77  *
     78  * When this flag is set, the encoder will not update the last frame with
     79  * the contents of the current frame.
     80  */
     81 #define VP8_EFLAG_NO_UPD_LAST (1 << 18)
     82 
     83 /*!\brief Don't update the golden frame
     84  *
     85  * When this flag is set, the encoder will not update the golden frame with
     86  * the contents of the current frame.
     87  */
     88 #define VP8_EFLAG_NO_UPD_GF (1 << 22)
     89 
     90 /*!\brief Don't update the alternate reference frame
     91  *
     92  * When this flag is set, the encoder will not update the alt ref frame with
     93  * the contents of the current frame.
     94  */
     95 #define VP8_EFLAG_NO_UPD_ARF (1 << 23)
     96 
     97 /*!\brief Force golden frame update
     98  *
     99  * When this flag is set, the encoder copy the contents of the current frame
    100  * to the golden frame buffer.
    101  */
    102 #define VP8_EFLAG_FORCE_GF (1 << 19)
    103 
    104 /*!\brief Force alternate reference frame update
    105  *
    106  * When this flag is set, the encoder copy the contents of the current frame
    107  * to the alternate reference frame buffer.
    108  */
    109 #define VP8_EFLAG_FORCE_ARF (1 << 24)
    110 
    111 /*!\brief Disable entropy update
    112  *
    113  * When this flag is set, the encoder will not update its internal entropy
    114  * model based on the entropy of this frame.
    115  */
    116 #define VP8_EFLAG_NO_UPD_ENTROPY (1 << 20)
    117 
    118 /*!\brief VPx encoder control functions
    119  *
    120  * This set of macros define the control functions available for VPx
    121  * encoder interface.
    122  *
    123  * \sa #vpx_codec_control
    124  */
    125 enum vp8e_enc_control_id {
    126   /*!\brief Codec control function to pass an ROI map to encoder.
    127    *
    128    * Supported in codecs: VP8
    129    */
    130   VP8E_SET_ROI_MAP = 8,
    131 
    132   /*!\brief Codec control function to pass an Active map to encoder.
    133    *
    134    * Supported in codecs: VP8, VP9
    135    */
    136   VP8E_SET_ACTIVEMAP,
    137 
    138   /*!\brief Codec control function to set encoder scaling mode.
    139    *
    140    * Supported in codecs: VP8, VP9
    141    */
    142   VP8E_SET_SCALEMODE = 11,
    143 
    144   /*!\brief Codec control function to set encoder internal speed settings.
    145    *
    146    * Changes in this value influences, among others, the encoder's selection
    147    * of motion estimation methods. Values greater than 0 will increase encoder
    148    * speed at the expense of quality.
    149    *
    150    * \note Valid range for VP8: -16..16
    151    * \note Valid range for VP9: -8..8
    152    *
    153    * Supported in codecs: VP8, VP9
    154    */
    155   VP8E_SET_CPUUSED = 13,
    156 
    157   /*!\brief Codec control function to enable automatic use of arf frames.
    158    *
    159    * Supported in codecs: VP8, VP9
    160    */
    161   VP8E_SET_ENABLEAUTOALTREF,
    162 
    163   /*!\brief control function to set noise sensitivity
    164    *
    165    * 0: off, 1: OnYOnly, 2: OnYUV,
    166    * 3: OnYUVAggressive, 4: Adaptive
    167    *
    168    * Supported in codecs: VP8
    169    */
    170   VP8E_SET_NOISE_SENSITIVITY,
    171 
    172   /*!\brief Codec control function to set higher sharpness at the expense
    173    * of a lower PSNR.
    174    *
    175    * \note Valid range: 0..7
    176    *
    177    * Supported in codecs: VP8, VP9
    178    */
    179   VP8E_SET_SHARPNESS,
    180 
    181   /*!\brief Codec control function to set the threshold for MBs treated static.
    182    *
    183    * Supported in codecs: VP8, VP9
    184    */
    185   VP8E_SET_STATIC_THRESHOLD,
    186 
    187   /*!\brief Codec control function to set the number of token partitions.
    188    *
    189    * Supported in codecs: VP8
    190    */
    191   VP8E_SET_TOKEN_PARTITIONS,
    192 
    193   /*!\brief Codec control function to get last quantizer chosen by the encoder.
    194    *
    195    * Return value uses internal quantizer scale defined by the codec.
    196    *
    197    * Supported in codecs: VP8, VP9
    198    */
    199   VP8E_GET_LAST_QUANTIZER,
    200 
    201   /*!\brief Codec control function to get last quantizer chosen by the encoder.
    202    *
    203    * Return value uses the 0..63 scale as used by the rc_*_quantizer config
    204    * parameters.
    205    *
    206    * Supported in codecs: VP8, VP9
    207    */
    208   VP8E_GET_LAST_QUANTIZER_64,
    209 
    210   /*!\brief Codec control function to set the max no of frames to create arf.
    211    *
    212    * Supported in codecs: VP8, VP9
    213    */
    214   VP8E_SET_ARNR_MAXFRAMES,
    215 
    216   /*!\brief Codec control function to set the filter strength for the arf.
    217    *
    218    * Supported in codecs: VP8, VP9
    219    */
    220   VP8E_SET_ARNR_STRENGTH,
    221 
    222   /*!\deprecated control function to set the filter type to use for the arf. */
    223   VP8E_SET_ARNR_TYPE,
    224 
    225   /*!\brief Codec control function to set visual tuning.
    226    *
    227    * Supported in codecs: VP8, VP9
    228    */
    229   VP8E_SET_TUNING,
    230 
    231   /*!\brief Codec control function to set constrained quality level.
    232    *
    233    * \attention For this value to be used vpx_codec_enc_cfg_t::rc_end_usage must
    234    *            be set to #VPX_CQ
    235    * \note Valid range: 0..63
    236    *
    237    * Supported in codecs: VP8, VP9
    238    */
    239   VP8E_SET_CQ_LEVEL,
    240 
    241   /*!\brief Codec control function to set Max data rate for Intra frames.
    242    *
    243    * This value controls additional clamping on the maximum size of a
    244    * keyframe. It is expressed as a percentage of the average
    245    * per-frame bitrate, with the special (and default) value 0 meaning
    246    * unlimited, or no additional clamping beyond the codec's built-in
    247    * algorithm.
    248    *
    249    * For example, to allocate no more than 4.5 frames worth of bitrate
    250    * to a keyframe, set this to 450.
    251    *
    252    * Supported in codecs: VP8, VP9
    253    */
    254   VP8E_SET_MAX_INTRA_BITRATE_PCT,
    255 
    256   /*!\brief Codec control function to set reference and update frame flags.
    257    *
    258    *  Supported in codecs: VP8
    259    */
    260   VP8E_SET_FRAME_FLAGS,
    261 
    262   /*!\brief Codec control function to set max data rate for Inter frames.
    263    *
    264    * This value controls additional clamping on the maximum size of an
    265    * inter frame. It is expressed as a percentage of the average
    266    * per-frame bitrate, with the special (and default) value 0 meaning
    267    * unlimited, or no additional clamping beyond the codec's built-in
    268    * algorithm.
    269    *
    270    * For example, to allow no more than 4.5 frames worth of bitrate
    271    * to an inter frame, set this to 450.
    272    *
    273    * Supported in codecs: VP9
    274    */
    275   VP9E_SET_MAX_INTER_BITRATE_PCT,
    276 
    277   /*!\brief Boost percentage for Golden Frame in CBR mode.
    278    *
    279    * This value controls the amount of boost given to Golden Frame in
    280    * CBR mode. It is expressed as a percentage of the average
    281    * per-frame bitrate, with the special (and default) value 0 meaning
    282    * the feature is off, i.e., no golden frame boost in CBR mode and
    283    * average bitrate target is used.
    284    *
    285    * For example, to allow 100% more bits, i.e, 2X, in a golden frame
    286    * than average frame, set this to 100.
    287    *
    288    * Supported in codecs: VP9
    289    */
    290   VP9E_SET_GF_CBR_BOOST_PCT,
    291 
    292   /*!\brief Codec control function to set the temporal layer id.
    293    *
    294    * For temporal scalability: this control allows the application to set the
    295    * layer id for each frame to be encoded. Note that this control must be set
    296    * for every frame prior to encoding. The usage of this control function
    297    * supersedes the internal temporal pattern counter, which is now deprecated.
    298    *
    299    * Supported in codecs: VP8
    300    */
    301   VP8E_SET_TEMPORAL_LAYER_ID,
    302 
    303   /*!\brief Codec control function to set encoder screen content mode.
    304    *
    305    * 0: off, 1: On, 2: On with more aggressive rate control.
    306    *
    307    * Supported in codecs: VP8
    308    */
    309   VP8E_SET_SCREEN_CONTENT_MODE,
    310 
    311   /*!\brief Codec control function to set lossless encoding mode.
    312    *
    313    * VP9 can operate in lossless encoding mode, in which the bitstream
    314    * produced will be able to decode and reconstruct a perfect copy of
    315    * input source. This control function provides a mean to switch encoder
    316    * into lossless coding mode(1) or normal coding mode(0) that may be lossy.
    317    *                          0 = lossy coding mode
    318    *                          1 = lossless coding mode
    319    *
    320    *  By default, encoder operates in normal coding mode (maybe lossy).
    321    *
    322    * Supported in codecs: VP9
    323    */
    324   VP9E_SET_LOSSLESS,
    325 
    326   /*!\brief Codec control function to set number of tile columns.
    327    *
    328    * In encoding and decoding, VP9 allows an input image frame be partitioned
    329    * into separated vertical tile columns, which can be encoded or decoded
    330    * independently. This enables easy implementation of parallel encoding and
    331    * decoding. This control requests the encoder to use column tiles in
    332    * encoding an input frame, with number of tile columns (in Log2 unit) as
    333    * the parameter:
    334    *             0 = 1 tile column
    335    *             1 = 2 tile columns
    336    *             2 = 4 tile columns
    337    *             .....
    338    *             n = 2**n tile columns
    339    * The requested tile columns will be capped by the encoder based on image
    340    * size limitations (The minimum width of a tile column is 256 pixels, the
    341    * maximum is 4096).
    342    *
    343    * By default, the value is 6, i.e., the maximum number of tiles supported by
    344    * the resolution.
    345    *
    346    * Supported in codecs: VP9
    347    */
    348   VP9E_SET_TILE_COLUMNS,
    349 
    350   /*!\brief Codec control function to set number of tile rows.
    351    *
    352    * In encoding and decoding, VP9 allows an input image frame be partitioned
    353    * into separated horizontal tile rows. Tile rows are encoded or decoded
    354    * sequentially. Even though encoding/decoding of later tile rows depends on
    355    * earlier ones, this allows the encoder to output data packets for tile rows
    356    * prior to completely processing all tile rows in a frame, thereby reducing
    357    * the latency in processing between input and output. The parameter
    358    * for this control describes the number of tile rows, which has a valid
    359    * range [0, 2]:
    360    *            0 = 1 tile row
    361    *            1 = 2 tile rows
    362    *            2 = 4 tile rows
    363    *
    364    * By default, the value is 0, i.e. one single row tile for entire image.
    365    *
    366    * Supported in codecs: VP9
    367    */
    368   VP9E_SET_TILE_ROWS,
    369 
    370   /*!\brief Codec control function to enable frame parallel decoding feature.
    371    *
    372    * VP9 has a bitstream feature to reduce decoding dependency between frames
    373    * by turning off backward update of probability context used in encoding
    374    * and decoding. This allows staged parallel processing of more than one
    375    * video frame in the decoder. This control function provides a means to
    376    * turn this feature on or off for bitstreams produced by encoder.
    377    *
    378    * By default, this feature is on.
    379    *
    380    * Supported in codecs: VP9
    381    */
    382   VP9E_SET_FRAME_PARALLEL_DECODING,
    383 
    384   /*!\brief Codec control function to set adaptive quantization mode.
    385    *
    386    * VP9 has a segment based feature that allows encoder to adaptively change
    387    * quantization parameter for each segment within a frame to improve the
    388    * subjective quality. This control makes encoder operate in one of the
    389    * several AQ_modes supported.
    390    *
    391    * By default, encoder operates with AQ_Mode 0(adaptive quantization off).
    392    *
    393    * Supported in codecs: VP9
    394    */
    395   VP9E_SET_AQ_MODE,
    396 
    397   /*!\brief Codec control function to enable/disable periodic Q boost.
    398    *
    399    * One VP9 encoder speed feature is to enable quality boost by lowering
    400    * frame level Q periodically. This control function provides a mean to
    401    * turn on/off this feature.
    402    *               0 = off
    403    *               1 = on
    404    *
    405    * By default, the encoder is allowed to use this feature for appropriate
    406    * encoding modes.
    407    *
    408    * Supported in codecs: VP9
    409    */
    410   VP9E_SET_FRAME_PERIODIC_BOOST,
    411 
    412   /*!\brief Codec control function to set noise sensitivity.
    413    *
    414    *  0: off, 1: On(YOnly), 2: For SVC only, on top two spatial layers(YOnly)
    415    *
    416    * Supported in codecs: VP9
    417    */
    418   VP9E_SET_NOISE_SENSITIVITY,
    419 
    420   /*!\brief Codec control function to turn on/off SVC in encoder.
    421    * \note Return value is VPX_CODEC_INVALID_PARAM if the encoder does not
    422    *       support SVC in its current encoding mode
    423    *  0: off, 1: on
    424    *
    425    * Supported in codecs: VP9
    426    */
    427   VP9E_SET_SVC,
    428 
    429   /*!\brief Codec control function to pass an ROI map to encoder.
    430    *
    431    * Supported in codecs: VP9
    432    */
    433   VP9E_SET_ROI_MAP,
    434 
    435   /*!\brief Codec control function to set parameters for SVC.
    436    * \note Parameters contain min_q, max_q, scaling factor for each of the
    437    *       SVC layers.
    438    *
    439    * Supported in codecs: VP9
    440    */
    441   VP9E_SET_SVC_PARAMETERS,
    442 
    443   /*!\brief Codec control function to set svc layer for spatial and temporal.
    444    * \note Valid ranges: 0..#vpx_codec_enc_cfg::ss_number_layers for spatial
    445    *                     layer and 0..#vpx_codec_enc_cfg::ts_number_layers for
    446    *                     temporal layer.
    447    *
    448    * Supported in codecs: VP9
    449    */
    450   VP9E_SET_SVC_LAYER_ID,
    451 
    452   /*!\brief Codec control function to set content type.
    453    * \note Valid parameter range:
    454    *              VP9E_CONTENT_DEFAULT = Regular video content (Default)
    455    *              VP9E_CONTENT_SCREEN  = Screen capture content
    456    *              VP9E_CONTENT_FILM    = Film content: improves grain retention
    457    *
    458    * Supported in codecs: VP9
    459    */
    460   VP9E_SET_TUNE_CONTENT,
    461 
    462   /*!\brief Codec control function to get svc layer ID.
    463    * \note The layer ID returned is for the data packet from the registered
    464    *       callback function.
    465    *
    466    * Supported in codecs: VP9
    467    */
    468   VP9E_GET_SVC_LAYER_ID,
    469 
    470   /*!\brief Codec control function to register callback to get per layer packet.
    471    * \note Parameter for this control function is a structure with a callback
    472    *       function and a pointer to private data used by the callback.
    473    *
    474    * Supported in codecs: VP9
    475    */
    476   VP9E_REGISTER_CX_CALLBACK,
    477 
    478   /*!\brief Codec control function to set color space info.
    479    * \note Valid ranges: 0..7, default is "UNKNOWN".
    480    *                     0 = UNKNOWN,
    481    *                     1 = BT_601
    482    *                     2 = BT_709
    483    *                     3 = SMPTE_170
    484    *                     4 = SMPTE_240
    485    *                     5 = BT_2020
    486    *                     6 = RESERVED
    487    *                     7 = SRGB
    488    *
    489    * Supported in codecs: VP9
    490    */
    491   VP9E_SET_COLOR_SPACE,
    492 
    493   /*!\brief Codec control function to set temporal layering mode.
    494    * \note Valid ranges: 0..3, default is "0"
    495    * (VP9E_TEMPORAL_LAYERING_MODE_NOLAYERING).
    496    *                     0 = VP9E_TEMPORAL_LAYERING_MODE_NOLAYERING
    497    *                     1 = VP9E_TEMPORAL_LAYERING_MODE_BYPASS
    498    *                     2 = VP9E_TEMPORAL_LAYERING_MODE_0101
    499    *                     3 = VP9E_TEMPORAL_LAYERING_MODE_0212
    500    *
    501    * Supported in codecs: VP9
    502    */
    503   VP9E_SET_TEMPORAL_LAYERING_MODE,
    504 
    505   /*!\brief Codec control function to set minimum interval between GF/ARF frames
    506    *
    507    * By default the value is set as 4.
    508    *
    509    * Supported in codecs: VP9
    510    */
    511   VP9E_SET_MIN_GF_INTERVAL,
    512 
    513   /*!\brief Codec control function to set minimum interval between GF/ARF frames
    514    *
    515    * By default the value is set as 16.
    516    *
    517    * Supported in codecs: VP9
    518    */
    519   VP9E_SET_MAX_GF_INTERVAL,
    520 
    521   /*!\brief Codec control function to get an Active map back from the encoder.
    522    *
    523    * Supported in codecs: VP9
    524    */
    525   VP9E_GET_ACTIVEMAP,
    526 
    527   /*!\brief Codec control function to set color range bit.
    528    * \note Valid ranges: 0..1, default is 0
    529    *                     0 = Limited range (16..235 or HBD equivalent)
    530    *                     1 = Full range (0..255 or HBD equivalent)
    531    *
    532    * Supported in codecs: VP9
    533    */
    534   VP9E_SET_COLOR_RANGE,
    535 
    536   /*!\brief Codec control function to set the frame flags and buffer indices
    537    * for spatial layers. The frame flags and buffer indices are set using the
    538    * struct #vpx_svc_ref_frame_config defined below.
    539    *
    540    * Supported in codecs: VP9
    541    */
    542   VP9E_SET_SVC_REF_FRAME_CONFIG,
    543 
    544   /*!\brief Codec control function to set intended rendering image size.
    545    *
    546    * By default, this is identical to the image size in pixels.
    547    *
    548    * Supported in codecs: VP9
    549    */
    550   VP9E_SET_RENDER_SIZE,
    551 
    552   /*!\brief Codec control function to set target level.
    553    *
    554    * 255: off (default); 0: only keep level stats; 10: target for level 1.0;
    555    * 11: target for level 1.1; ... 62: target for level 6.2
    556    *
    557    * Supported in codecs: VP9
    558    */
    559   VP9E_SET_TARGET_LEVEL,
    560 
    561   /*!\brief Codec control function to set row level multi-threading.
    562    *
    563    * 0 : off, 1 : on
    564    *
    565    * Supported in codecs: VP9
    566    */
    567   VP9E_SET_ROW_MT,
    568 
    569   /*!\brief Codec control function to get bitstream level.
    570    *
    571    * Supported in codecs: VP9
    572    */
    573   VP9E_GET_LEVEL,
    574 
    575   /*!\brief Codec control function to enable/disable special mode for altref
    576    *        adaptive quantization. You can use it with --aq-mode concurrently.
    577    *
    578    * Enable special adaptive quantization for altref frames based on their
    579    * expected prediction quality for the future frames.
    580    *
    581    * Supported in codecs: VP9
    582    */
    583   VP9E_SET_ALT_REF_AQ,
    584 
    585   /*!\brief Boost percentage for Golden Frame in CBR mode.
    586    *
    587    * This value controls the amount of boost given to Golden Frame in
    588    * CBR mode. It is expressed as a percentage of the average
    589    * per-frame bitrate, with the special (and default) value 0 meaning
    590    * the feature is off, i.e., no golden frame boost in CBR mode and
    591    * average bitrate target is used.
    592    *
    593    * For example, to allow 100% more bits, i.e, 2X, in a golden frame
    594    * than average frame, set this to 100.
    595    *
    596    * Supported in codecs: VP8
    597    */
    598   VP8E_SET_GF_CBR_BOOST_PCT,
    599 
    600   /*!\brief Codec control function to enable the extreme motion vector unit test
    601    * in VP9. Please note that this is only used in motion vector unit test.
    602    *
    603    * 0 : off, 1 : MAX_EXTREME_MV, 2 : MIN_EXTREME_MV
    604    *
    605    * Supported in codecs: VP9
    606    */
    607   VP9E_ENABLE_MOTION_VECTOR_UNIT_TEST,
    608 
    609   /*!\brief Codec control function to constrain the inter-layer prediction
    610    * (prediction of lower spatial resolution) in VP9 SVC.
    611    *
    612    * 0 : inter-layer prediction on, 1 : off, 2 : off only on non-key frames
    613    *
    614    * Supported in codecs: VP9
    615    */
    616   VP9E_SET_SVC_INTER_LAYER_PRED,
    617 
    618   /*!\brief Codec control function to set mode and thresholds for frame
    619    *  dropping in SVC. Drop frame thresholds are set per-layer. Mode is set as:
    620    * 0 : layer-dependent dropping, 1 : constrained dropping, current layer drop
    621    * forces drop on all upper layers. Default mode is 0.
    622    *
    623    * Supported in codecs: VP9
    624    */
    625   VP9E_SET_SVC_FRAME_DROP_LAYER,
    626 
    627   /*!\brief Codec control function to get the refresh and reference flags and
    628    * the buffer indices, up to the last encoded spatial layer.
    629    *
    630    * Supported in codecs: VP9
    631    */
    632   VP9E_GET_SVC_REF_FRAME_CONFIG,
    633 
    634   /*!\brief Codec control function to enable/disable use of golden reference as
    635    * a second temporal reference for SVC. Only used when inter-layer prediction
    636    * is disabled on INTER frames.
    637    *
    638    * 0: Off, 1: Enabled (default)
    639    *
    640    * Supported in codecs: VP9
    641    */
    642   VP9E_SET_SVC_GF_TEMPORAL_REF,
    643 
    644   /*!\brief Codec control function to enable spatial layer sync frame, for any
    645    * spatial layer. Enabling it for layer k means spatial layer k will disable
    646    * all temporal prediction, but keep the inter-layer prediction. It will
    647    * refresh any temporal reference buffer for that layer, and reset the
    648    * temporal layer for the superframe to 0. Setting the layer sync for base
    649    * spatial layer forces a key frame. Default is off (0) for all spatial
    650    * layers. Spatial layer sync flag is reset to 0 after each encoded layer,
    651    * so when control is invoked it is only used for the current superframe.
    652    *
    653    * 0: Off (default), 1: Enabled
    654    *
    655    * Supported in codecs: VP9
    656    */
    657   VP9E_SET_SVC_SPATIAL_LAYER_SYNC,
    658 
    659   /*!\brief Codec control function to enable temporal dependency model.
    660    *
    661    * Vp9 allows the encoder to run temporal dependency model and use it to
    662    * improve the compression performance. To enable, set this parameter to be
    663    * 1. The default value is set to be 1.
    664    */
    665   VP9E_SET_TPL,
    666 
    667   /*!\brief Codec control function to enable postencode frame drop.
    668    *
    669    * This will allow encoder to drop frame after it's encoded.
    670    *
    671    * 0: Off (default), 1: Enabled
    672    *
    673    * Supported in codecs: VP9
    674    */
    675   VP9E_SET_POSTENCODE_DROP,
    676 };
    677 
    678 /*!\brief vpx 1-D scaling mode
    679  *
    680  * This set of constants define 1-D vpx scaling modes
    681  */
    682 typedef enum vpx_scaling_mode_1d {
    683   VP8E_NORMAL = 0,
    684   VP8E_FOURFIVE = 1,
    685   VP8E_THREEFIVE = 2,
    686   VP8E_ONETWO = 3
    687 } VPX_SCALING_MODE;
    688 
    689 /*!\brief Temporal layering mode enum for VP9 SVC.
    690  *
    691  * This set of macros define the different temporal layering modes.
    692  * Supported codecs: VP9 (in SVC mode)
    693  *
    694  */
    695 typedef enum vp9e_temporal_layering_mode {
    696   /*!\brief No temporal layering.
    697    * Used when only spatial layering is used.
    698    */
    699   VP9E_TEMPORAL_LAYERING_MODE_NOLAYERING = 0,
    700 
    701   /*!\brief Bypass mode.
    702    * Used when application needs to control temporal layering.
    703    * This will only work when the number of spatial layers equals 1.
    704    */
    705   VP9E_TEMPORAL_LAYERING_MODE_BYPASS = 1,
    706 
    707   /*!\brief 0-1-0-1... temporal layering scheme with two temporal layers.
    708    */
    709   VP9E_TEMPORAL_LAYERING_MODE_0101 = 2,
    710 
    711   /*!\brief 0-2-1-2... temporal layering scheme with three temporal layers.
    712    */
    713   VP9E_TEMPORAL_LAYERING_MODE_0212 = 3
    714 } VP9E_TEMPORAL_LAYERING_MODE;
    715 
    716 /*!\brief  vpx region of interest map
    717  *
    718  * These defines the data structures for the region of interest map
    719  *
    720  */
    721 
    722 typedef struct vpx_roi_map {
    723   /*! If ROI is enabled. */
    724   uint8_t enabled;
    725   /*! An id between 0-3 (0-7 for vp9) for each 16x16 (8x8 for VP9)
    726    * region within a frame. */
    727   unsigned char *roi_map;
    728   unsigned int rows; /**< Number of rows. */
    729   unsigned int cols; /**< Number of columns. */
    730   /*! VP8 only uses the first 4 segments. VP9 uses 8 segments. */
    731   int delta_q[8];  /**< Quantizer deltas. */
    732   int delta_lf[8]; /**< Loop filter deltas. */
    733   /*! skip and ref frame segment is only used in VP9. */
    734   int skip[8];      /**< Skip this block. */
    735   int ref_frame[8]; /**< Reference frame for this block. */
    736   /*! Static breakout threshold for each segment. Only used in VP8. */
    737   unsigned int static_threshold[4];
    738 } vpx_roi_map_t;
    739 
    740 /*!\brief  vpx active region map
    741  *
    742  * These defines the data structures for active region map
    743  *
    744  */
    745 
    746 typedef struct vpx_active_map {
    747   /*!\brief specify an on (1) or off (0) each 16x16 region within a frame */
    748   unsigned char *active_map;
    749   unsigned int rows; /**< number of rows */
    750   unsigned int cols; /**< number of cols */
    751 } vpx_active_map_t;
    752 
    753 /*!\brief  vpx image scaling mode
    754  *
    755  * This defines the data structure for image scaling mode
    756  *
    757  */
    758 typedef struct vpx_scaling_mode {
    759   VPX_SCALING_MODE h_scaling_mode; /**< horizontal scaling mode */
    760   VPX_SCALING_MODE v_scaling_mode; /**< vertical scaling mode   */
    761 } vpx_scaling_mode_t;
    762 
    763 /*!\brief VP8 token partition mode
    764  *
    765  * This defines VP8 partitioning mode for compressed data, i.e., the number of
    766  * sub-streams in the bitstream. Used for parallelized decoding.
    767  *
    768  */
    769 
    770 typedef enum {
    771   VP8_ONE_TOKENPARTITION = 0,
    772   VP8_TWO_TOKENPARTITION = 1,
    773   VP8_FOUR_TOKENPARTITION = 2,
    774   VP8_EIGHT_TOKENPARTITION = 3
    775 } vp8e_token_partitions;
    776 
    777 /*!brief VP9 encoder content type */
    778 typedef enum {
    779   VP9E_CONTENT_DEFAULT,
    780   VP9E_CONTENT_SCREEN,
    781   VP9E_CONTENT_FILM,
    782   VP9E_CONTENT_INVALID
    783 } vp9e_tune_content;
    784 
    785 /*!\brief VP8 model tuning parameters
    786  *
    787  * Changes the encoder to tune for certain types of input material.
    788  *
    789  */
    790 typedef enum { VP8_TUNE_PSNR, VP8_TUNE_SSIM } vp8e_tuning;
    791 
    792 /*!\brief  vp9 svc layer parameters
    793  *
    794  * This defines the spatial and temporal layer id numbers for svc encoding.
    795  * This is used with the #VP9E_SET_SVC_LAYER_ID control to set the spatial and
    796  * temporal layer id for the current frame.
    797  *
    798  */
    799 typedef struct vpx_svc_layer_id {
    800   int spatial_layer_id; /**< First spatial layer to start encoding. */
    801   // TODO(jianj): Deprecated, to be removed.
    802   int temporal_layer_id; /**< Temporal layer id number. */
    803   int temporal_layer_id_per_spatial[VPX_SS_MAX_LAYERS]; /**< Temp layer id. */
    804 } vpx_svc_layer_id_t;
    805 
    806 /*!\brief vp9 svc frame flag parameters.
    807  *
    808  * This defines the frame flags and buffer indices for each spatial layer for
    809  * svc encoding.
    810  * This is used with the #VP9E_SET_SVC_REF_FRAME_CONFIG control to set frame
    811  * flags and buffer indices for each spatial layer for the current (super)frame.
    812  *
    813  */
    814 typedef struct vpx_svc_ref_frame_config {
    815   int lst_fb_idx[VPX_SS_MAX_LAYERS];         /**< Last buffer index. */
    816   int gld_fb_idx[VPX_SS_MAX_LAYERS];         /**< Golden buffer index. */
    817   int alt_fb_idx[VPX_SS_MAX_LAYERS];         /**< Altref buffer index. */
    818   int update_buffer_slot[VPX_SS_MAX_LAYERS]; /**< Update reference frames. */
    819   // TODO(jianj): Remove update_last/golden/alt_ref, these are deprecated.
    820   int update_last[VPX_SS_MAX_LAYERS];       /**< Update last. */
    821   int update_golden[VPX_SS_MAX_LAYERS];     /**< Update golden. */
    822   int update_alt_ref[VPX_SS_MAX_LAYERS];    /**< Update altref. */
    823   int reference_last[VPX_SS_MAX_LAYERS];    /**< Last as reference. */
    824   int reference_golden[VPX_SS_MAX_LAYERS];  /**< Golden as reference. */
    825   int reference_alt_ref[VPX_SS_MAX_LAYERS]; /**< Altref as reference. */
    826   int64_t duration[VPX_SS_MAX_LAYERS];      /**< Duration per spatial layer. */
    827 } vpx_svc_ref_frame_config_t;
    828 
    829 /*!\brief VP9 svc frame dropping mode.
    830  *
    831  * This defines the frame drop mode for SVC.
    832  *
    833  */
    834 typedef enum {
    835   CONSTRAINED_LAYER_DROP,
    836   /**< Upper layers are constrained to drop if current layer drops. */
    837   LAYER_DROP,           /**< Any spatial layer can drop. */
    838   FULL_SUPERFRAME_DROP, /**< Only full superframe can drop. */
    839 } SVC_LAYER_DROP_MODE;
    840 
    841 /*!\brief vp9 svc frame dropping parameters.
    842  *
    843  * This defines the frame drop thresholds for each spatial layer, and
    844  * the frame dropping mode: 0 = layer based frame dropping (default),
    845  * 1 = constrained dropping where current layer drop forces all upper
    846  * spatial layers to drop.
    847  */
    848 typedef struct vpx_svc_frame_drop {
    849   int framedrop_thresh[VPX_SS_MAX_LAYERS]; /**< Frame drop thresholds */
    850   SVC_LAYER_DROP_MODE
    851   framedrop_mode;      /**< Layer-based or constrained dropping. */
    852   int max_consec_drop; /**< Maximum consecutive drops, for any layer. */
    853 } vpx_svc_frame_drop_t;
    854 
    855 /*!\brief vp9 svc spatial layer sync parameters.
    856  *
    857  * This defines the spatial layer sync flag, defined per spatial layer.
    858  *
    859  */
    860 typedef struct vpx_svc_spatial_layer_sync {
    861   int spatial_layer_sync[VPX_SS_MAX_LAYERS]; /**< Sync layer flags */
    862   int base_layer_intra_only; /**< Flag for setting Intra-only frame on base */
    863 } vpx_svc_spatial_layer_sync_t;
    864 
    865 /*!\cond */
    866 /*!\brief VP8 encoder control function parameter type
    867  *
    868  * Defines the data types that VP8E control functions take. Note that
    869  * additional common controls are defined in vp8.h
    870  *
    871  */
    872 
    873 VPX_CTRL_USE_TYPE(VP8E_SET_FRAME_FLAGS, int)
    874 #define VPX_CTRL_VP8E_SET_FRAME_FLAGS
    875 VPX_CTRL_USE_TYPE(VP8E_SET_TEMPORAL_LAYER_ID, int)
    876 #define VPX_CTRL_VP8E_SET_TEMPORAL_LAYER_ID
    877 VPX_CTRL_USE_TYPE(VP8E_SET_ROI_MAP, vpx_roi_map_t *)
    878 #define VPX_CTRL_VP8E_SET_ROI_MAP
    879 VPX_CTRL_USE_TYPE(VP9E_SET_ROI_MAP, vpx_roi_map_t *)
    880 #define VPX_CTRL_VP9E_SET_ROI_MAP
    881 VPX_CTRL_USE_TYPE(VP8E_SET_ACTIVEMAP, vpx_active_map_t *)
    882 #define VPX_CTRL_VP8E_SET_ACTIVEMAP
    883 VPX_CTRL_USE_TYPE(VP8E_SET_SCALEMODE, vpx_scaling_mode_t *)
    884 #define VPX_CTRL_VP8E_SET_SCALEMODE
    885 
    886 VPX_CTRL_USE_TYPE(VP9E_SET_SVC, int)
    887 #define VPX_CTRL_VP9E_SET_SVC
    888 VPX_CTRL_USE_TYPE(VP9E_SET_SVC_PARAMETERS, void *)
    889 #define VPX_CTRL_VP9E_SET_SVC_PARAMETERS
    890 VPX_CTRL_USE_TYPE(VP9E_REGISTER_CX_CALLBACK, void *)
    891 #define VPX_CTRL_VP9E_REGISTER_CX_CALLBACK
    892 VPX_CTRL_USE_TYPE(VP9E_SET_SVC_LAYER_ID, vpx_svc_layer_id_t *)
    893 #define VPX_CTRL_VP9E_SET_SVC_LAYER_ID
    894 
    895 VPX_CTRL_USE_TYPE(VP8E_SET_CPUUSED, int)
    896 #define VPX_CTRL_VP8E_SET_CPUUSED
    897 VPX_CTRL_USE_TYPE(VP8E_SET_ENABLEAUTOALTREF, unsigned int)
    898 #define VPX_CTRL_VP8E_SET_ENABLEAUTOALTREF
    899 VPX_CTRL_USE_TYPE(VP8E_SET_NOISE_SENSITIVITY, unsigned int)
    900 #define VPX_CTRL_VP8E_SET_NOISE_SENSITIVITY
    901 VPX_CTRL_USE_TYPE(VP8E_SET_SHARPNESS, unsigned int)
    902 #define VPX_CTRL_VP8E_SET_SHARPNESS
    903 VPX_CTRL_USE_TYPE(VP8E_SET_STATIC_THRESHOLD, unsigned int)
    904 #define VPX_CTRL_VP8E_SET_STATIC_THRESHOLD
    905 VPX_CTRL_USE_TYPE(VP8E_SET_TOKEN_PARTITIONS, int) /* vp8e_token_partitions */
    906 #define VPX_CTRL_VP8E_SET_TOKEN_PARTITIONS
    907 
    908 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_MAXFRAMES, unsigned int)
    909 #define VPX_CTRL_VP8E_SET_ARNR_MAXFRAMES
    910 VPX_CTRL_USE_TYPE(VP8E_SET_ARNR_STRENGTH, unsigned int)
    911 #define VPX_CTRL_VP8E_SET_ARNR_STRENGTH
    912 VPX_CTRL_USE_TYPE_DEPRECATED(VP8E_SET_ARNR_TYPE, unsigned int)
    913 #define VPX_CTRL_VP8E_SET_ARNR_TYPE
    914 VPX_CTRL_USE_TYPE(VP8E_SET_TUNING, int) /* vp8e_tuning */
    915 #define VPX_CTRL_VP8E_SET_TUNING
    916 VPX_CTRL_USE_TYPE(VP8E_SET_CQ_LEVEL, unsigned int)
    917 #define VPX_CTRL_VP8E_SET_CQ_LEVEL
    918 
    919 VPX_CTRL_USE_TYPE(VP9E_SET_TILE_COLUMNS, int)
    920 #define VPX_CTRL_VP9E_SET_TILE_COLUMNS
    921 VPX_CTRL_USE_TYPE(VP9E_SET_TILE_ROWS, int)
    922 #define VPX_CTRL_VP9E_SET_TILE_ROWS
    923 
    924 VPX_CTRL_USE_TYPE(VP9E_SET_TPL, int)
    925 #define VPX_CTRL_VP9E_SET_TPL
    926 
    927 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER, int *)
    928 #define VPX_CTRL_VP8E_GET_LAST_QUANTIZER
    929 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER_64, int *)
    930 #define VPX_CTRL_VP8E_GET_LAST_QUANTIZER_64
    931 VPX_CTRL_USE_TYPE(VP9E_GET_SVC_LAYER_ID, vpx_svc_layer_id_t *)
    932 #define VPX_CTRL_VP9E_GET_SVC_LAYER_ID
    933 
    934 VPX_CTRL_USE_TYPE(VP8E_SET_MAX_INTRA_BITRATE_PCT, unsigned int)
    935 #define VPX_CTRL_VP8E_SET_MAX_INTRA_BITRATE_PCT
    936 VPX_CTRL_USE_TYPE(VP8E_SET_MAX_INTER_BITRATE_PCT, unsigned int)
    937 #define VPX_CTRL_VP8E_SET_MAX_INTER_BITRATE_PCT
    938 
    939 VPX_CTRL_USE_TYPE(VP8E_SET_GF_CBR_BOOST_PCT, unsigned int)
    940 #define VPX_CTRL_VP8E_SET_GF_CBR_BOOST_PCT
    941 
    942 VPX_CTRL_USE_TYPE(VP8E_SET_SCREEN_CONTENT_MODE, unsigned int)
    943 #define VPX_CTRL_VP8E_SET_SCREEN_CONTENT_MODE
    944 
    945 VPX_CTRL_USE_TYPE(VP9E_SET_GF_CBR_BOOST_PCT, unsigned int)
    946 #define VPX_CTRL_VP9E_SET_GF_CBR_BOOST_PCT
    947 
    948 VPX_CTRL_USE_TYPE(VP9E_SET_LOSSLESS, unsigned int)
    949 #define VPX_CTRL_VP9E_SET_LOSSLESS
    950 
    951 VPX_CTRL_USE_TYPE(VP9E_SET_FRAME_PARALLEL_DECODING, unsigned int)
    952 #define VPX_CTRL_VP9E_SET_FRAME_PARALLEL_DECODING
    953 
    954 VPX_CTRL_USE_TYPE(VP9E_SET_AQ_MODE, unsigned int)
    955 #define VPX_CTRL_VP9E_SET_AQ_MODE
    956 
    957 VPX_CTRL_USE_TYPE(VP9E_SET_ALT_REF_AQ, int)
    958 #define VPX_CTRL_VP9E_SET_ALT_REF_AQ
    959 
    960 VPX_CTRL_USE_TYPE(VP9E_SET_FRAME_PERIODIC_BOOST, unsigned int)
    961 #define VPX_CTRL_VP9E_SET_FRAME_PERIODIC_BOOST
    962 
    963 VPX_CTRL_USE_TYPE(VP9E_SET_NOISE_SENSITIVITY, unsigned int)
    964 #define VPX_CTRL_VP9E_SET_NOISE_SENSITIVITY
    965 
    966 VPX_CTRL_USE_TYPE(VP9E_SET_TUNE_CONTENT, int) /* vp9e_tune_content */
    967 #define VPX_CTRL_VP9E_SET_TUNE_CONTENT
    968 
    969 VPX_CTRL_USE_TYPE(VP9E_SET_COLOR_SPACE, int)
    970 #define VPX_CTRL_VP9E_SET_COLOR_SPACE
    971 
    972 VPX_CTRL_USE_TYPE(VP9E_SET_MIN_GF_INTERVAL, unsigned int)
    973 #define VPX_CTRL_VP9E_SET_MIN_GF_INTERVAL
    974 
    975 VPX_CTRL_USE_TYPE(VP9E_SET_MAX_GF_INTERVAL, unsigned int)
    976 #define VPX_CTRL_VP9E_SET_MAX_GF_INTERVAL
    977 
    978 VPX_CTRL_USE_TYPE(VP9E_GET_ACTIVEMAP, vpx_active_map_t *)
    979 #define VPX_CTRL_VP9E_GET_ACTIVEMAP
    980 
    981 VPX_CTRL_USE_TYPE(VP9E_SET_COLOR_RANGE, int)
    982 #define VPX_CTRL_VP9E_SET_COLOR_RANGE
    983 
    984 VPX_CTRL_USE_TYPE(VP9E_SET_SVC_REF_FRAME_CONFIG, vpx_svc_ref_frame_config_t *)
    985 #define VPX_CTRL_VP9E_SET_SVC_REF_FRAME_CONFIG
    986 
    987 VPX_CTRL_USE_TYPE(VP9E_SET_RENDER_SIZE, int *)
    988 #define VPX_CTRL_VP9E_SET_RENDER_SIZE
    989 
    990 VPX_CTRL_USE_TYPE(VP9E_SET_TARGET_LEVEL, unsigned int)
    991 #define VPX_CTRL_VP9E_SET_TARGET_LEVEL
    992 
    993 VPX_CTRL_USE_TYPE(VP9E_SET_ROW_MT, unsigned int)
    994 #define VPX_CTRL_VP9E_SET_ROW_MT
    995 
    996 VPX_CTRL_USE_TYPE(VP9E_GET_LEVEL, int *)
    997 #define VPX_CTRL_VP9E_GET_LEVEL
    998 
    999 VPX_CTRL_USE_TYPE(VP9E_ENABLE_MOTION_VECTOR_UNIT_TEST, unsigned int)
   1000 #define VPX_CTRL_VP9E_ENABLE_MOTION_VECTOR_UNIT_TEST
   1001 
   1002 VPX_CTRL_USE_TYPE(VP9E_SET_SVC_INTER_LAYER_PRED, unsigned int)
   1003 #define VPX_CTRL_VP9E_SET_SVC_INTER_LAYER_PRED
   1004 
   1005 VPX_CTRL_USE_TYPE(VP9E_SET_SVC_FRAME_DROP_LAYER, vpx_svc_frame_drop_t *)
   1006 #define VPX_CTRL_VP9E_SET_SVC_FRAME_DROP_LAYER
   1007 
   1008 VPX_CTRL_USE_TYPE(VP9E_GET_SVC_REF_FRAME_CONFIG, vpx_svc_ref_frame_config_t *)
   1009 #define VPX_CTRL_VP9E_GET_SVC_REF_FRAME_CONFIG
   1010 
   1011 VPX_CTRL_USE_TYPE(VP9E_SET_SVC_GF_TEMPORAL_REF, unsigned int)
   1012 #define VPX_CTRL_VP9E_SET_SVC_GF_TEMPORAL_REF
   1013 
   1014 VPX_CTRL_USE_TYPE(VP9E_SET_SVC_SPATIAL_LAYER_SYNC,
   1015                   vpx_svc_spatial_layer_sync_t *)
   1016 #define VPX_CTRL_VP9E_SET_SVC_SPATIAL_LAYER_SYNC
   1017 
   1018 VPX_CTRL_USE_TYPE(VP9E_SET_POSTENCODE_DROP, unsigned int)
   1019 #define VPX_CTRL_VP9E_SET_POSTENCODE_DROP
   1020 
   1021 /*!\endcond */
   1022 /*! @} - end defgroup vp8_encoder */
   1023 #ifdef __cplusplus
   1024 }  // extern "C"
   1025 #endif
   1026 
   1027 #endif  // VPX_VPX_VP8CX_H_
   1028