Exemplos de GST_VAAPI_IQ_MATRIX_NEW em C++ (Cpp)

Exemplo n.º 1

Arquivo: gstvaapidecoder_vp8.c Projeto: ceyusa/gstreamer-vaapi

static GstVaapiDecoderStatus
ensure_quant_matrix (GstVaapiDecoderVp8 * decoder, GstVaapiPicture * picture)
{
  GstVaapiDecoderVp8Private *const priv = &decoder->priv;
  GstVp8FrameHdr *const frame_hdr = &priv->frame_hdr;
  GstVp8Segmentation *const seg = &priv->parser.segmentation;
  VAIQMatrixBufferVP8 *iq_matrix;
  const gint8 QI_MAX = 127;
  gint8 qi, qi_base;
  gint i;

  picture->iq_matrix = GST_VAAPI_IQ_MATRIX_NEW (VP8, decoder);
  if (!picture->iq_matrix) {
    GST_ERROR ("failed to allocate IQ matrix");
    return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
  }
  iq_matrix = picture->iq_matrix->param;

  /* Fill in VAIQMatrixBufferVP8 */
  for (i = 0; i < 4; i++) {
    if (seg->segmentation_enabled) {
      qi_base = seg->quantizer_update_value[i];
      if (!seg->segment_feature_mode)   // 0 means delta update
        qi_base += frame_hdr->quant_indices.y_ac_qi;
    } else
      qi_base = frame_hdr->quant_indices.y_ac_qi;

    qi = qi_base;
    iq_matrix->quantization_index[i][0] = CLAMP (qi, 0, QI_MAX);
    qi = qi_base + frame_hdr->quant_indices.y_dc_delta;
    iq_matrix->quantization_index[i][1] = CLAMP (qi, 0, QI_MAX);
    qi = qi_base + frame_hdr->quant_indices.y2_dc_delta;
    iq_matrix->quantization_index[i][2] = CLAMP (qi, 0, QI_MAX);
    qi = qi_base + frame_hdr->quant_indices.y2_ac_delta;
    iq_matrix->quantization_index[i][3] = CLAMP (qi, 0, QI_MAX);
    qi = qi_base + frame_hdr->quant_indices.uv_dc_delta;
    iq_matrix->quantization_index[i][4] = CLAMP (qi, 0, QI_MAX);
    qi = qi_base + frame_hdr->quant_indices.uv_ac_delta;
    iq_matrix->quantization_index[i][5] = CLAMP (qi, 0, QI_MAX);
  }
  return GST_VAAPI_DECODER_STATUS_SUCCESS;
}

Exemplo n.º 2

Arquivo: gstvaapidecoder_jpeg.c Projeto: ceyusa/gstreamer-vaapi

static GstVaapiDecoderStatus
fill_quantization_table (GstVaapiDecoderJpeg * decoder,
    GstVaapiPicture * picture)
{
  GstVaapiDecoderJpegPrivate *const priv = &decoder->priv;
  VAIQMatrixBufferJPEGBaseline *iq_matrix;
  guint i, j, num_tables;

  if (!VALID_STATE (decoder, GOT_IQ_TABLE))
    gst_jpeg_get_default_quantization_tables (&priv->quant_tables);

  picture->iq_matrix = GST_VAAPI_IQ_MATRIX_NEW (JPEGBaseline, decoder);
  if (!picture->iq_matrix) {
    GST_ERROR ("failed to allocate quantiser table");
    return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
  }
  iq_matrix = picture->iq_matrix->param;

  num_tables = MIN (G_N_ELEMENTS (iq_matrix->quantiser_table),
      GST_JPEG_MAX_QUANT_ELEMENTS);

  for (i = 0; i < num_tables; i++) {
    GstJpegQuantTable *const quant_table = &priv->quant_tables.quant_tables[i];

    iq_matrix->load_quantiser_table[i] = quant_table->valid;
    if (!iq_matrix->load_quantiser_table[i])
      continue;

    if (quant_table->quant_precision != 0) {
      // Only Baseline profile is supported, thus 8-bit Qk values
      GST_ERROR ("unsupported quantization table element precision");
      return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT;
    }

    for (j = 0; j < GST_JPEG_MAX_QUANT_ELEMENTS; j++)
      iq_matrix->quantiser_table[i][j] = quant_table->quant_table[j];
    iq_matrix->load_quantiser_table[i] = 1;
    quant_table->valid = FALSE;
  }
  return GST_VAAPI_DECODER_STATUS_SUCCESS;
}

Exemplo n.º 3

Arquivo: gstvaapidecoder_jpeg.c Projeto: cbetz421/gst-vaapi

static gboolean
fill_quantization_table(
    GstVaapiDecoderJpeg *decoder, 
    GstVaapiPicture     *picture
)
{
    GstVaapiDecoderJpegPrivate * const priv = decoder->priv;
    VAIQMatrixBufferJPEGBaseline *iq_matrix;
    guint i, j, num_tables;

    if (!priv->has_quant_table)
        gst_jpeg_get_default_quantization_tables(&priv->quant_tables);
    
    picture->iq_matrix = GST_VAAPI_IQ_MATRIX_NEW(JPEGBaseline, decoder);
    g_assert(picture->iq_matrix);
    iq_matrix = picture->iq_matrix->param;

    num_tables = MIN(G_N_ELEMENTS(iq_matrix->quantiser_table),
                     GST_JPEG_MAX_QUANT_ELEMENTS);

    for (i = 0; i < num_tables; i++) {
        GstJpegQuantTable * const quant_table =
            &priv->quant_tables.quant_tables[i];

        iq_matrix->load_quantiser_table[i] = quant_table->valid;
        if (!iq_matrix->load_quantiser_table[i])
            continue;

        g_assert(quant_table->quant_precision == 0);
        for (j = 0; j < GST_JPEG_MAX_QUANT_ELEMENTS; j++)
            iq_matrix->quantiser_table[i][j] = quant_table->quant_table[j];
        iq_matrix->load_quantiser_table[i] = 1;
        quant_table->valid = FALSE;
    }
    return TRUE;
}