Removing -irefresh-type option from VP9 encoder (#98)

Force idr_flag on (VP9 does not appear to support cra in bitstreams)

Signed-off-by: Mark Feldman <mark.feldman@intel.com>

Author: intelmark

Config/Sample.cfg

@@ -44,7 +44,6 @@ BaseLayerSwitchMode             : 0             # 0 : Use B-frames in the base l
 PredStructure                   : 2             # 2: Random Access
 
 IntraPeriod                     : 47            # Period of I-Frame (-1 = only first, -2 = auto) [-2 - 255]
-IntraRefreshType                : 2             # Random Access 1:CRA, 2:IDR (when intra_period > 0) - [1-2]
 
 #====================== Quantization ===============================
 QP                              : 56            # Quantization parameter - [0-63]

Docs/svt-vp9_encoder_user_guide.md

@@ -60,7 +60,7 @@ The number of frames of the sequence to encode.  e.g. 100. If the input frame co
 
 >-intra-period integer **[Optional]**
 
-The intra period defines the interval of frames after which you insert an Intra refresh. It is strongly recommended to use (multiple of 8) -1 the closest to 1 second (e.g. 55, 47, 31, 23 should be used for 60, 50, 30, (24 or 25) respectively). When using closed gop (-irefresh-type 2) add 1 to the value above (e.g. 56 instead of 55).
+The intra period defines the interval of frames after which you insert an Intra refresh. It is strongly recommended to use (multiple of 8) -1 the closest to 1 second (e.g. 55, 47, 31, 23 should be used for 60, 50, 30, (24 or 25) respectively). Because all intra refreshes are closed gop add 1 to the value above (e.g. 56 instead of 55).
 
 >-rc integer **[Optional]**
 
@@ -102,7 +102,6 @@ The encoder parameters present in the Sample.cfg file are listed in this table b
 | **BaseLayerSwitchMode** | -base-layer-switch-mode | [0 - 1] | 0 | 0 = Use B-frames in the base layer pointing to the same past picture. <br>1 = Use P-frames in the base layer|
 | **PredStructure** | -pred-struct | [2] | 2 | 2 = Random Access.|
 | **IntraPeriod** | -intra-period | [-2 - 255] | -2 | Distance Between Intra Frame inserted. -1 denotes no intra update. -2 denotes auto. |
-| **IntraRefreshType** | -irefresh-type | [1 - 2] | 2 | 1 = CRA (Open GOP) <br>2 = IDR (Closed GOP) |
 | **QP** | -q | [0 - 63] | 50 | Initial quantization parameter for the Intra pictures used when RateControlMode 0 (CQP) |
 | **LoopFilter** | -loop-filter | [0 - 1] | 1 | Enables or disables the loop filter, <br>0 = OFF, 1 = ON |
 | **UseDefaultMeHme** | -use-default-me-hme | [0 - 1] | 1 | 0 = Overwrite Default ME HME parameters. <br>1 = Use default ME HME parameters, dependent on width and height |
@@ -117,7 +116,8 @@ The encoder parameters present in the Sample.cfg file are listed in this table b
 | **MinQpAllowed** | -min-qp | [0 - 63] | 10 | Minimum QP value allowed for rate control use. Only used when RateControlMode is set to 1. Has to be < MaxQpAllowed |
 | **AsmType** | -asm | [0 - 1] | 1 | Assembly instruction set (0 = C Only, 1 = Automatically select highest assembly instruction set supported) |
 | **LogicalProcessorNumber** | -lp | [0, total number of logical processor] | 0 | The number of logical processor which encoder threads run on.Refer to Appendix A.1 |
-| **TargetSocket** | -ss | [-1,1] | -1 | For dual socket systems, this can specify which socket the encoder runs on.Refer to Appendix A.1 || **SwitchThreadsToRtPriority** | -rt | [0 - 1] | 1 | Enables or disables threads to real time priority, 0 = OFF, 1 = ON (only works on Linux) |
+| **TargetSocket** | -ss | [-1,1] | -1 | For dual socket systems, this can specify which socket the encoder runs on.Refer to Appendix A.1 |
+| **SwitchThreadsToRtPriority** | -rt | [0 - 1] | 1 | Enables or disables threads to real time priority, 0 = OFF, 1 = ON (only works on Linux) |
 | **Profile** | -profile | [0] | 0 | 0 = 8-bit 4:2:0 |
 | **Level** | -level | [1, 2, 2.1,3, 3.1, 4, 4.1, 5, 5.1, 5.2, 6, 6.1, 6.2] | 0 | 0 to 6.2 [0 for auto determine Level] |
 

Source/API/EbSvtVp9Enc.h

@@ -153,12 +153,6 @@ typedef struct EbSvtVp9EncConfiguration
     * Deault is -2. */
     int32_t                  intra_period;
 
-    /* Random access.
-    * 1 = CRA, open GOP.
-    * 2 = IDR, closed GOP.
-    * Default is 1. */
-    uint32_t                 intra_refresh_type;
-
     /* Prediction structure used to construct GOP. There are two main structures
     * supported, which are: Low Delay (P or B) and Random Access.
     *

Source/App/EbAppConfig.c

@@ -47,7 +47,6 @@
 #define LEVEL_TOKEN                     "-level"
 #define INTERLACED_VIDEO_TOKEN          "-interlaced-video"
 #define SEPERATE_FILDS_TOKEN            "-separate-fields"
-#define INTRA_REFRESH_TYPE_TOKEN        "-irefresh-type" // no Eval
 #define LOOP_FILTER_TOKEN               "-loop-filter"
 #define USE_DEFAULT_ME_HME_TOKEN        "-use-default-me-hme"
 #define HME_ENABLE_TOKEN                "-hme"      // no Eval
@@ -145,7 +144,6 @@ static void set_encoder_bit_depth                      (const char *value, EbCon
 static void set_base_layer_switch_mode                 (const char *value, EbConfig *cfg) {cfg->base_layer_switch_mode              = (uint8_t) strtoul(value, NULL, 0);};
 static void set_enc_mode                               (const char *value, EbConfig *cfg) {cfg->enc_mode                            = (uint8_t)strtoul(value, NULL, 0);};
 static void set_cfg_intra_period                       (const char *value, EbConfig *cfg) {cfg->intra_period                        = strtol(value,  NULL, 0);};
-static void set_cfg_intra_refresh_type                 (const char *value, EbConfig *cfg) {cfg->intra_refresh_type                  = strtol(value,  NULL, 0);};
 static void set_cfg_pred_structure                     (const char *value, EbConfig *cfg) { cfg->pred_structure                     = strtol(value, NULL, 0); };
 static void set_cfg_qp                                 (const char *value, EbConfig *cfg) {cfg->qp                                  = strtoul(value, NULL, 0);};
 static void set_cfg_use_qp_file                        (const char *value, EbConfig *cfg) {cfg->use_qp_file                         = (uint8_t)strtol(value, NULL, 0); };
@@ -222,7 +220,6 @@ ConfigEntry config_entry[] = {
     { SINGLE_INPUT, BASE_LAYER_SWITCH_MODE_TOKEN, "BaseLayerSwitchMode", set_base_layer_switch_mode },
     { SINGLE_INPUT, ENCMODE_TOKEN, "EncoderMode", set_enc_mode},
     { SINGLE_INPUT, INTRA_PERIOD_TOKEN, "IntraPeriod", set_cfg_intra_period },
-    { SINGLE_INPUT, INTRA_REFRESH_TYPE_TOKEN, "IntraRefreshType", set_cfg_intra_refresh_type },
     { SINGLE_INPUT, FRAME_RATE_TOKEN, "FrameRate", set_frame_rate },
     { SINGLE_INPUT, FRAME_RATE_NUMERATOR_TOKEN, "FrameRateNumerator", set_frame_rate_numerator },
     { SINGLE_INPUT, FRAME_RATE_DENOMINATOR_TOKEN, "FrameRateDenominator", set_frame_rate_denominator },
@@ -311,7 +308,6 @@ void eb_config_ctor(EbConfig *config_ptr)
 
     config_ptr->enc_mode                                         = 9;
     config_ptr->intra_period                                     = -2;
-    config_ptr->intra_refresh_type                               = 2;
 
     config_ptr->pred_structure                                   = 2;
 

Source/App/EbAppConfig.h

@@ -220,7 +220,6 @@ typedef struct EbConfig
     uint32_t        base_layer_switch_mode;
     uint8_t         enc_mode;
     int32_t         intra_period;
-    uint32_t        intra_refresh_type;
     uint32_t        pred_structure;
 
     /****************************************

Source/App/EbAppContext.c

@@ -158,7 +158,6 @@ EbErrorType  copy_configuration_parameters(
     callback_data->eb_enc_parameters.source_width = config->source_width;
     callback_data->eb_enc_parameters.source_height = config->source_height;
     callback_data->eb_enc_parameters.intra_period = config->intra_period;
-    callback_data->eb_enc_parameters.intra_refresh_type = config->intra_refresh_type;
     callback_data->eb_enc_parameters.base_layer_switch_mode = config->base_layer_switch_mode;
     callback_data->eb_enc_parameters.enc_mode = (uint8_t)config->enc_mode;
     callback_data->eb_enc_parameters.frame_rate = config->frame_rate;

Source/Lib/Codec/EbDefinitions.h

@@ -320,15 +320,6 @@ typedef struct EbH265DynEncConfiguration {
     uint32_t available_target_bitrate;
 } EbH265DynEncConfiguration;
 
-/** The EbIntraRefreshType is used to describe the intra refresh type.
-*/
-typedef enum EbIntraRefreshType
-{
-    NO_REFRESH = 0,
-    CRA_REFRESH = 1,
-    IDR_REFRESH = 2
-} EbIntraRefreshType;
-
 #ifdef __GNUC__
 #define EB_ALIGN(n) __attribute__((__aligned__(n)))
 #elif defined(_MSC_VER)

Source/Lib/Codec/EbEncHandle.c

@@ -1669,7 +1669,6 @@ EbErrorType eb_vp9_svt_enc_init_parameter(
     config_ptr->base_layer_switch_mode = 0;
     config_ptr->enc_mode = 3;
     config_ptr->intra_period = 31;
-    config_ptr->intra_refresh_type = 1;
     config_ptr->pred_structure = EB_PRED_RANDOM_ACCESS;
     config_ptr->loop_filter = EB_TRUE;
     config_ptr->use_default_me_hme = EB_TRUE;
@@ -1915,9 +1914,6 @@ static int32_t compute_default_intra_period(
 
     intra_period = (ABS((fps - max_ip)) > ABS((fps - min_ip))) ? min_ip : max_ip;
 
-    if (config->intra_refresh_type == 1)
-        intra_period -= 1;
-
     return intra_period;
 }
 
@@ -1965,14 +1961,12 @@ void copy_api_from_app(
 
     // Coding Structure
     sequence_control_set_ptr->static_config.intra_period = ((EbSvtVp9EncConfiguration*)p_component_parameter_structure)->intra_period;
-    sequence_control_set_ptr->static_config.intra_refresh_type = ((EbSvtVp9EncConfiguration*)p_component_parameter_structure)->intra_refresh_type;
     sequence_control_set_ptr->static_config.pred_structure = ((EbSvtVp9EncConfiguration*)p_component_parameter_structure)->pred_structure;
     sequence_control_set_ptr->static_config.base_layer_switch_mode = ((EbSvtVp9EncConfiguration*)p_component_parameter_structure)->base_layer_switch_mode;
     sequence_control_set_ptr->static_config.tune = ((EbSvtVp9EncConfiguration*)p_component_parameter_structure)->tune;
     sequence_control_set_ptr->static_config.enc_mode = ((EbSvtVp9EncConfiguration*)p_component_parameter_structure)->enc_mode;
 
     sequence_control_set_ptr->intra_period = sequence_control_set_ptr->static_config.intra_period;
-    sequence_control_set_ptr->intra_refresh_type = sequence_control_set_ptr->static_config.intra_refresh_type;
     sequence_control_set_ptr->max_ref_count = 1;
 
     // Quantization
@@ -2279,10 +2273,6 @@ static EbErrorType  verify_settings(
         return_error = EB_ErrorBadParameter;
     }
 
-    if (config->intra_refresh_type > 2 || config->intra_refresh_type < 1) {
-        SVT_LOG("Error Instance %u: Invalid intra Refresh Type [1-2]\n", channel_number + 1);
-        return_error = EB_ErrorBadParameter;
-    }
     if (config->base_layer_switch_mode > 1) {
         SVT_LOG("Error Instance %u: Invalid Base Layer Switch Mode [0-1] \n", channel_number + 1);
         return_error = EB_ErrorBadParameter;
@@ -2475,10 +2465,9 @@ static void print_lib_params(
     SVT_LOG("\nSVT [config]: EncoderBitDepth \t\t\t\t\t\t\t: %d ", config->encoder_bit_depth);
     SVT_LOG("\nSVT [config]: SourceWidth / SourceHeight\t\t\t\t\t: %d / %d ", config->source_width, config->source_height);
     if (config->frame_rate_denominator != 0 && config->frame_rate_numerator != 0)
-        SVT_LOG("\nSVT [config]: Fps_Numerator / Fps_Denominator / Gop Size / IntraRefreshType \t: %d / %d / %d / %d", config->frame_rate_numerator > (1 << 16) ? config->frame_rate_numerator >> 16 : config->frame_rate_numerator,
+        SVT_LOG("\nSVT [config]: Fps_Numerator / Fps_Denominator / Gop Size\t\t: %d / %d / %d", config->frame_rate_numerator > (1 << 16) ? config->frame_rate_numerator >> 16 : config->frame_rate_numerator,
             config->frame_rate_denominator > (1 << 16) ? config->frame_rate_denominator >> 16 : config->frame_rate_denominator,
-            config->intra_period + 1,
-            config->intra_refresh_type);
+            config->intra_period + 1);
     else
         SVT_LOG("\nSVT [config]: FrameRate / Gop Size\t\t\t\t\t\t: %d / %d ", config->frame_rate > 1000 ? config->frame_rate >> 16 : config->frame_rate, config->intra_period + 1);
     SVT_LOG("\nSVT [config]: HierarchicalLevels / BaseLayerSwitchMode / PredStructure\t\t: %d / %d / %d ", scs->hierarchical_levels, config->base_layer_switch_mode, config->pred_structure);

Source/Lib/Codec/EbEncodeContext.c

@@ -168,7 +168,6 @@ EbErrorType eb_vp9_encode_context_ctor(
     encode_context_ptr->pred_struct_position                                = 0;
     encode_context_ptr->current_input_poc                                   = -1;
     encode_context_ptr->elapsed_non_idr_count                                = 0;
-    encode_context_ptr->elapsed_non_cra_count                                = 0;
     encode_context_ptr->initial_picture                                    = EB_TRUE;
 
     encode_context_ptr->last_idr_picture                                    = 0;

Source/Lib/Codec/EbEncodeContext.h

@@ -110,7 +110,6 @@ typedef struct EncodeContext
     uint32_t                            pred_struct_position;         // Current position within a prediction structure
 
     uint32_t                            elapsed_non_idr_count;
-    uint32_t                            elapsed_non_cra_count;
     int64_t                             current_input_poc;
     EB_BOOL                             initial_picture;