C++ (Cpp) ensure_hw_profile Examples

Example #1

File: gstvaapiencoder_jpeg.c Project: GStreamer/gstreamer-vaapi

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;
}

Example #2

File: gstvaapiencoder_mpeg2.c Project: GStreamer/gstreamer-vaapi

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;
}

Example #3

File: gstvaapiencoder_vp8.c Project: rexxster/gstreamer-vaapi

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;
}