static GstVaapiEncoderStatus
set_context_info (GstVaapiEncoder * base_encoder)
{
GstVaapiEncoderJpeg *encoder = GST_VAAPI_ENCODER_JPEG_CAST (base_encoder);
GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);
/* Maximum sizes for common headers (in bytes) */
enum
{
MAX_APP_HDR_SIZE = 20,
MAX_FRAME_HDR_SIZE = 19,
MAX_QUANT_TABLE_SIZE = 138,
MAX_HUFFMAN_TABLE_SIZE = 432,
MAX_SCAN_HDR_SIZE = 14
};
if (!ensure_hw_profile (encoder))
return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
base_encoder->num_ref_frames = 0;
/* Only YUV 4:2:0 formats are supported for now. */
base_encoder->codedbuf_size = GST_ROUND_UP_16 (vip->width) *
GST_ROUND_UP_16 (vip->height) * 3 / 2;
base_encoder->codedbuf_size += MAX_APP_HDR_SIZE + MAX_FRAME_HDR_SIZE +
MAX_QUANT_TABLE_SIZE + MAX_HUFFMAN_TABLE_SIZE + MAX_SCAN_HDR_SIZE;
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}
static GstVaapiEncoderStatus
set_context_info (GstVaapiEncoder * base_encoder)
{
GstVaapiEncoderMpeg2 *const encoder =
GST_VAAPI_ENCODER_MPEG2_CAST (base_encoder);
GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);
/* Maximum sizes for common headers (in bytes) */
enum
{
MAX_SEQ_HDR_SIZE = 140,
MAX_SEQ_EXT_SIZE = 10,
MAX_GOP_SIZE = 8,
MAX_PIC_HDR_SIZE = 10,
MAX_PIC_EXT_SIZE = 11,
MAX_SLICE_HDR_SIZE = 8,
};
if (!ensure_hw_profile (encoder))
return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
base_encoder->num_ref_frames = 2;
/* Only YUV 4:2:0 formats are supported for now. This means that we
have a limit of 4608 bits per macroblock. */
base_encoder->codedbuf_size = (GST_ROUND_UP_16 (vip->width) *
GST_ROUND_UP_16 (vip->height) / 256) * 576;
/* Account for Sequence, GOP, and Picture headers */
/* XXX: exclude unused Sequence Display Extension, Sequence Scalable
Extension, Quantization Matrix Extension, Picture Display Extension,
Picture Temporal Scalable Extension, Picture Spatial Scalable
Extension */
base_encoder->codedbuf_size += MAX_SEQ_HDR_SIZE + MAX_SEQ_EXT_SIZE +
MAX_GOP_SIZE + MAX_PIC_HDR_SIZE + MAX_PIC_EXT_SIZE;
/* Account for Slice headers. We use one slice per line of macroblock */
base_encoder->codedbuf_size += (GST_ROUND_UP_16 (vip->height) / 16) *
MAX_SLICE_HDR_SIZE;
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}
static GstVaapiEncoderStatus
set_context_info (GstVaapiEncoder * base_encoder)
{
GstVaapiEncoderVP8 *encoder = GST_VAAPI_ENCODER_VP8_CAST (base_encoder);
GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);
/* Maximum sizes for common headers (in bytes) */
enum
{
MAX_FRAME_TAG_SIZE = 10,
MAX_UPDATE_SEGMENTATION_SIZE = 13,
MAX_MB_LF_ADJUSTMENTS_SIZE = 9,
MAX_QUANT_INDICES_SIZE = 5,
MAX_TOKEN_PROB_UPDATE_SIZE = 1188,
MAX_MV_PROBE_UPDATE_SIZE = 38,
MAX_REST_OF_FRAME_HDR_SIZE = 15
};
if (!ensure_hw_profile (encoder))
return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
base_encoder->num_ref_frames = 3;
/* Only YUV 4:2:0 formats are supported for now. */
/* Assumig 4 times compression ratio */
base_encoder->codedbuf_size = GST_ROUND_UP_16 (vip->width) *
GST_ROUND_UP_16 (vip->height) * 12 / 4;
base_encoder->codedbuf_size +=
MAX_FRAME_TAG_SIZE + MAX_UPDATE_SEGMENTATION_SIZE +
MAX_MB_LF_ADJUSTMENTS_SIZE + MAX_QUANT_INDICES_SIZE +
MAX_TOKEN_PROB_UPDATE_SIZE + MAX_MV_PROBE_UPDATE_SIZE +
MAX_REST_OF_FRAME_HDR_SIZE;
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}