diff options
| -rw-r--r-- | va/va.h | 87 |
1 files changed, 86 insertions, 1 deletions
@@ -471,6 +471,15 @@ typedef enum * VAEncMiscParameterTypeROI. */ VAConfigAttribEncROI = 25, + /** + * \brief Encoding extended rate control attribute. Read-only. + * + * This attribute conveys whether the driver supports any extended rate control features + * The attribute value is partitioned into fields as defined in the + * VAConfigAttribValEncRateControlExt union. + */ + VAConfigAttribEncRateControlExt = 26, + /**@}*/ VAConfigAttribTypeMax } VAConfigAttribType; @@ -622,6 +631,47 @@ typedef union _VAConfigAttribValEncROI { unsigned int value; } VAConfigAttribValEncROI; +/** \brief Attribute value for VAConfigAttribEncRateControlExt */ +typedef union _VAConfigAttribValEncRateControlExt { + struct { + /** + * \brief The maximum number of temporal layers minus 1 + * + * \ref max_num_temporal_layers_minus1 plus 1 specifies the maximum number of temporal + * layers that supported by the underlying driver. \ref max_num_temporal_layers_minus1 + * equal to 0 implies the underlying driver doesn't support encoding with temporal layer. + */ + unsigned int max_num_temporal_layers_minus1 : 8; + + /** + * /brief support temporal layer bit-rate control flag + * + * \ref temporal_layer_bitrate_control_flag equal to 1 specifies the underlying driver + * can support bit-rate control per temporal layer when (#VAConfigAttribRateControl == #VA_RC_CBR || + * #VAConfigAttribRateControl == #VA_RC_VBR). + * + * The underlying driver must set \ref temporal_layer_bitrate_control_flag to 0 when + * \c max_num_temporal_layers_minus1 is equal to 0 + * + * To use bit-rate control per temporal layer, an application must send the right layer + * structure via #VAEncMiscParameterTemporalLayerStructure at the beginning of a coded sequence + * and then followed by #VAEncMiscParameterRateControl and #VAEncMiscParameterFrameRate structures + * for each layer, using the \c temporal_id field as the layer identifier. Otherwise + * the driver doesn't use bitrate control per temporal layer if an application doesn't send the + * layer structure via #VAEncMiscParameterTemporalLayerStructure to the driver. The driver returns + * VA_STATUS_ERROR_INVALID_PARAMETER if an application sends a wrong layer structure or doesn't send + * #VAEncMiscParameterRateControl and #VAEncMiscParameterFrameRate for each layer. + * + * The driver will ignore #VAEncMiscParameterTemporalLayerStructure and the \c temporal_id field + * in #VAEncMiscParameterRateControl and #VAEncMiscParameterFrameRate if + * \ref temporal_layer_bitrate_control_flag is equal to 0 or #VAConfigAttribRateControl == #VA_RC_CQP + */ + unsigned int temporal_layer_bitrate_control_flag : 1; + unsigned int reserved : 23; + } bits; + unsigned int value; +} VAConfigAttribValEncRateControlExt; + /** * if an attribute is not applicable for a given * profile/entrypoint pair, then set the value to the following @@ -1097,7 +1147,9 @@ typedef enum * rate control, when the user has externally skipped frames. */ VAEncMiscParameterTypeSkipFrame = 9, /** \brief Buffer type used for region-of-interest (ROI) parameters. */ - VAEncMiscParameterTypeROI = 10 + VAEncMiscParameterTypeROI = 10, + /** \brief Buffer type used for temporal layer structure */ + VAEncMiscParameterTypeTemporalLayerStructure = 12, } VAEncMiscParameterType; /** \brief Packed header type. */ @@ -1154,6 +1206,22 @@ typedef struct _VAEncMiscParameterBuffer unsigned int data[0]; } VAEncMiscParameterBuffer; +/** \brief Temporal layer Structure*/ +typedef struct _VAEncMiscParameterTemporalLayerStructure +{ + /** \brief The number of temporal layers */ + unsigned int number_of_layers; + /** \brief The length of the array defining frame layer membership. Should be 1-32 */ + unsigned int periodicity; + /** + * \brief The array indicating the layer id for each frame + * + * The layer id for the first frame in a coded sequence is always 0, so layer_id[] specifies the layer + * ids for frames starting from the 2nd frame. + */ + unsigned int layer_id[32]; +} VAEncMiscParameterTemporalLayerStructure; + /** \brief Rate control parameters */ typedef struct _VAEncMiscParameterRateControl @@ -1181,6 +1249,11 @@ typedef struct _VAEncMiscParameterRateControl unsigned int disable_frame_skip : 1; /* Disable frame skip in rate control mode */ unsigned int disable_bit_stuffing : 1; /* Disable bit stuffing in rate control mode */ unsigned int mb_rate_control : 4; /* Control VA_RC_MB 0: default, 1: enable, 2: disable, other: reserved*/ + /* + * The temporal layer that the rate control parameters are specified for. + */ + unsigned int temporal_id : 8; + unsigned int reserved : 17; } bits; unsigned int value; } rc_flags; @@ -1189,6 +1262,18 @@ typedef struct _VAEncMiscParameterRateControl typedef struct _VAEncMiscParameterFrameRate { unsigned int framerate; + union + { + struct + { + /* + * The temporal id the framerate parameters are specified for. + */ + unsigned int temporal_id : 8; + unsigned int reserved : 24; + } bits; + unsigned int value; + } framerate_flags; } VAEncMiscParameterFrameRate; /** |