コード例 #1
0
ファイル: jctrans.c プロジェクト: mhernando/SDL2_image
transencode_master_selection (j_compress_ptr cinfo,
			      jvirt_barray_ptr * coef_arrays)
{
  /* Initialize master control (includes parameter checking/processing) */
  jinit_c_master_control(cinfo, TRUE /* transcode only */);

  /* Entropy encoding: either Huffman or arithmetic coding. */
  if (cinfo->arith_code)
    jinit_arith_encoder(cinfo);
  else {
    jinit_huff_encoder(cinfo);
  }

  /* We need a special coefficient buffer controller. */
  transencode_coef_controller(cinfo, coef_arrays);

  jinit_marker_writer(cinfo);

  /* We can now tell the memory manager to allocate virtual arrays. */
  (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo);

  /* Write the datastream header (SOI, JFIF) immediately.
   * Frame and scan headers are postponed till later.
   * This lets application insert special markers after the SOI.
   */
  (*cinfo->marker->write_file_header) (cinfo);
}
コード例 #2
0
GLOBAL(void)jinit_compress_master(j_compress_ptr cinfo)
{
  /* Initialize master control (includes parameter checking/processing) */
  jinit_c_master_control(cinfo);

  /* Preprocessing */

  #ifndef JPEG_ENC_OPT
    /* Forward DCT */
    #ifndef DBUG_pk0157s
      jinit_forward_dct(cinfo);
    #endif 
  #endif 
  /* Entropy encoding: either Huffman or arithmetic coding. */

  #ifndef JPEG_ENC_OPT  //bmy 04.12.29 jpeg_enc_opt +    
    jinit_huff_encoder(cinfo);
  #endif //bmy 04.12.29 jpeg_enc_opt +  

  /* Need a full-image coefficient buffer in any multi-pass mode. */
  jinit_c_coef_controller(cinfo);



  /* We can now tell the memory manager to allocate virtual arrays. */
  // realize_virt_arrays ((j_common_ptr) cinfo);

  /* Write the datastream header (SOI) immediately.
   * Frame and scan headers are postponed till later.
   * This lets application insert special markers after the SOI.
   */
  write_file_header(cinfo);
}
コード例 #3
0
transencode_master_selection (j_compress_ptr cinfo,
			      jvirt_barray_ptr * coef_arrays)
{
  cinfo->data_unit = DCTSIZE;
  /* Although we don't actually use input_components for transcoding,
   * jcmaster.c's initial_setup will complain if input_components is 0.
   */
  cinfo->input_components = 1;
  /* Initialize master control (includes parameter checking/processing) */
  jinit_c_master_control(cinfo, TRUE /* transcode only */);

  /* We need a special compression codec. */
  transencode_codec(cinfo, coef_arrays);

  jinit_marker_writer(cinfo);

  /* We can now tell the memory manager to allocate virtual arrays. */
  (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo);

  /* Write the datastream header (SOI, JFIF) immediately.
   * Frame and scan headers are postponed till later.
   * This lets application insert special markers after the SOI.
   */
  (*cinfo->marker->write_file_header) (cinfo);
}
コード例 #4
0
ファイル: jcinit.c プロジェクト: 151706061/ClearCanvas
jinit_compress_master (j_compress_ptr cinfo)
{
  /* Initialize master control (includes parameter checking/processing) */
  jinit_c_master_control(cinfo, FALSE /* full compression */);

  /* Initialize compression codec */
  jinit_c_codec(cinfo);

  /* Preprocessing */
  if (! cinfo->raw_data_in) {
    jinit_color_converter(cinfo);
    jinit_downsampler(cinfo);
    jinit_c_prep_controller(cinfo, FALSE /* never need full buffer here */);
  }

  jinit_c_main_controller(cinfo, FALSE /* never need full buffer here */);

  jinit_marker_writer(cinfo);

  /* We can now tell the memory manager to allocate virtual arrays. */
  (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo);

  /* Write the datastream header (SOI) immediately.
   * Frame and scan headers are postponed till later.
   * This lets application insert special markers after the SOI.
   */
  (*cinfo->marker->write_file_header) (cinfo);
}
コード例 #5
0
ファイル: jcinit.c プロジェクト: 15521054523/fis3
jinit_compress_master (j_compress_ptr cinfo)
{
  /* Initialize master control (includes parameter checking/processing) */
  jinit_c_master_control(cinfo, FALSE /* full compression */);

  /* Preprocessing */
  if (! cinfo->raw_data_in) {
    jinit_color_converter(cinfo);
    jinit_downsampler(cinfo);
    jinit_c_prep_controller(cinfo, FALSE /* never need full buffer here */);
  }
  /* Forward DCT */
  jinit_forward_dct(cinfo);
  /* Entropy encoding: either Huffman or arithmetic coding. */
  if (cinfo->arith_code) {
#ifdef C_ARITH_CODING_SUPPORTED
    jinit_arith_encoder(cinfo);
#else
    ERREXIT(cinfo, JERR_ARITH_NOTIMPL);
#endif
  } else {
    if (cinfo->progressive_mode) {
#ifdef C_PROGRESSIVE_SUPPORTED
      jinit_phuff_encoder(cinfo);
#else
      ERREXIT(cinfo, JERR_NOT_COMPILED);
#endif
    } else
      jinit_huff_encoder(cinfo);
  }

  /* Need a full-image coefficient buffer in any multi-pass mode. */
  jinit_c_coef_controller(cinfo,
                (boolean) (cinfo->num_scans > 1 || cinfo->optimize_coding));
  jinit_c_main_controller(cinfo, FALSE /* never need full buffer here */);

  jinit_marker_writer(cinfo);

  /* We can now tell the memory manager to allocate virtual arrays. */
  (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo);

  /* Write the datastream header (SOI) immediately.
   * Frame and scan headers are postponed till later.
   * This lets application insert special markers after the SOI.
   */
  (*cinfo->marker->write_file_header) (cinfo);
}
コード例 #6
0
ファイル: jctrans.c プロジェクト: neurodebian/freesurfer
transencode_master_selection (j_compress_ptr cinfo,
                              jvirt_barray_ptr * coef_arrays)
{
  /* Although we don't actually use input_components for transcoding,
   * jcmaster.c's initial_setup will complain if input_components is 0.
   */
  cinfo->input_components = 1;
  /* Initialize master control (includes parameter checking/processing) */
  jinit_c_master_control(cinfo, TRUE /* transcode only */);

  /* Entropy encoding: either Huffman or arithmetic coding. */
  if (cinfo->arith_code)
  {
    ERREXIT(cinfo, JERR_ARITH_NOTIMPL);
  }
  else
  {
    if (cinfo->progressive_mode)
    {
#ifdef C_PROGRESSIVE_SUPPORTED
      jinit_phuff_encoder(cinfo);
#else
      ERREXIT(cinfo, JERR_NOT_COMPILED);
#endif
    }
    else
      jinit_huff_encoder(cinfo);
  }

  /* We need a special coefficient buffer controller. */
  transencode_coef_controller(cinfo, coef_arrays);

  jinit_marker_writer(cinfo);

  /* We can now tell the memory manager to allocate virtual arrays. */
  (*cinfo->mem->realize_virt_arrays) ((j_common_ptr) cinfo);

  /* Write the datastream header (SOI, JFIF) immediately.
   * Frame and scan headers are postponed till later.
   * This lets application insert special markers after the SOI.
   */
  (*cinfo->marker->write_file_header) (cinfo);
}