Esempi in C++ (Cpp) per opj_get_data_length_from_file

Esempio n. 1

File: jp2.c Progetto: dfelinto/blender

static opj_stream_t *opj_stream_create_from_file(const char *filepath,
                                                 OPJ_UINT32 p_size,
                                                 OPJ_BOOL p_is_read_stream,
                                                 FILE **r_file)
{
  FILE *p_file = BLI_fopen(filepath, p_is_read_stream ? "rb" : "wb");
  if (p_file == NULL) {
    return NULL;
  }

  opj_stream_t *l_stream = opj_stream_create(p_size, p_is_read_stream);
  if (l_stream == NULL) {
    fclose(p_file);
    return NULL;
  }

  opj_stream_set_user_data(l_stream, p_file, opj_free_from_file);
  opj_stream_set_user_data_length(l_stream, opj_get_data_length_from_file(p_file));
  opj_stream_set_write_function(l_stream, opj_write_from_file);
  opj_stream_set_read_function(l_stream, opj_read_from_file);
  opj_stream_set_skip_function(l_stream, opj_skip_from_file);
  opj_stream_set_seek_function(l_stream, opj_seek_from_file);

  if (r_file) {
    *r_file = p_file;
  }
  return l_stream;
}

Esempio n. 2

File: openjpeg.c Progetto: DCPTools/openjpeg2-cdist

opj_stream_t* OPJ_CALLCONV opj_stream_create_file_stream(
    const char *fname,
    OPJ_SIZE_T p_size,
    OPJ_BOOL p_is_read_stream)
{
    opj_stream_t* l_stream = 00;
    FILE *p_file;
    const char *mode;

    if (! fname) {
        return NULL;
    }

    if (p_is_read_stream) {
        mode = "rb";
    } else {
        mode = "wb";
    }

    p_file = fopen(fname, mode);

    if (! p_file) {
        return NULL;
    }

    l_stream = opj_stream_create(p_size, p_is_read_stream);
    if (! l_stream) {
        fclose(p_file);
        return NULL;
    }

    opj_stream_set_user_data(l_stream, p_file,
                             (opj_stream_free_user_data_fn) fclose);
    opj_stream_set_user_data_length(l_stream,
                                    opj_get_data_length_from_file(p_file));
    opj_stream_set_read_function(l_stream, (opj_stream_read_fn) opj_read_from_file);
    opj_stream_set_write_function(l_stream,
                                  (opj_stream_write_fn) opj_write_from_file);
    opj_stream_set_skip_function(l_stream, (opj_stream_skip_fn) opj_skip_from_file);
    opj_stream_set_seek_function(l_stream, (opj_stream_seek_fn) opj_seek_from_file);

    return l_stream;
}

Esempio n. 3

File: openjpeg.c Progetto: landryb/debian-pkg-openjpeg

opj_stream_t* OPJ_CALLCONV opj_stream_create_file_stream (	FILE * p_file, 
															OPJ_SIZE_T p_size, 
															OPJ_BOOL p_is_read_stream)
{
	opj_stream_t* l_stream = 00;

	if (! p_file) {
		return NULL;
	}

	l_stream = opj_stream_create(p_size,p_is_read_stream);
	if (! l_stream) {
		return NULL;
	}

	opj_stream_set_user_data(l_stream, p_file);
	opj_stream_set_user_data_length(l_stream, opj_get_data_length_from_file(p_file));
	opj_stream_set_read_function(l_stream, (opj_stream_read_fn) opj_read_from_file);
	opj_stream_set_write_function(l_stream, (opj_stream_write_fn) opj_write_from_file);
	opj_stream_set_skip_function(l_stream, (opj_stream_skip_fn) opj_skip_from_file);
	opj_stream_set_seek_function(l_stream, (opj_stream_seek_fn) opj_seek_from_file);

	return l_stream;
}