/*
* et_opus_read_file_info:
* @file: file to read info from
* @ETFileInfo: ET_File_Info to put information into
* @error: a GError or %NULL
*
* Read header information of an Opus file.
*
* Returns: %TRUE if successful otherwise %FALSE
*/
gboolean
et_opus_read_file_info (GFile *gfile, ET_File_Info *ETFileInfo,
GError **error)
{
OggOpusFile *file;
const OpusHead* head;
GFileInfo *info;
g_return_val_if_fail (gfile != NULL && ETFileInfo != NULL, FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
file = et_opus_open_file (gfile, error);
if (!file)
{
g_assert (error == NULL || *error != NULL);
return FALSE;
}
/* FIXME: Improve error-checking. */
head = op_head (file, -1);
/* TODO: Read the vendor string from the Vorbis comment? */
ETFileInfo->version = head->version;
ETFileInfo->bitrate = op_bitrate (file, -1) / 1000;
ETFileInfo->mode = head->channel_count;
/* All Opus audio is encoded at 48 kHz, but the input sample rate can
* differ, and then input_sample_rate will be set. */
if (head->input_sample_rate != 0)
{
ETFileInfo->samplerate = head->input_sample_rate;
}
else
{
ETFileInfo->samplerate = 48000;
}
ETFileInfo->duration = op_pcm_total (file, -1) / 48000;
op_free (file);
info = g_file_query_info (gfile, G_FILE_ATTRIBUTE_STANDARD_SIZE,
G_FILE_QUERY_INFO_NONE, NULL, NULL);
if (info)
{
ETFileInfo->size = g_file_info_get_size (info);
g_object_unref (info);
}
else
{
ETFileInfo->size = 0;
}
g_assert (error == NULL || *error == NULL);
return TRUE;
}
/*
* et_opus_tag_read_file_tag:
* @filename: file from which to read tags
* @FileTag: File_Tag to read tag into
* @error: a GError or %NULL
*
* Read file tags and store into File_Tag.
*
* Returns: %TRUE if successful otherwise %FALSE
*/
gboolean
et_opus_tag_read_file_tag (GFile *gfile, File_Tag *FileTag,
GError **error)
{
OggOpusFile *file;
const OpusTags *tags;
GFileInfo *info;
g_return_val_if_fail (gfile != NULL && FileTag != NULL, FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
file = et_opus_open_file (gfile, error);
if (!file)
{
g_assert (error == NULL || *error != NULL);
return FALSE;
}
tags = op_tags (file, 0);
info = g_file_query_info (gfile, G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME,
G_FILE_QUERY_INFO_NONE, NULL, error);
if (!info)
{
op_free (file);
g_assert (error == NULL || *error != NULL);
return FALSE;
}
/* The cast is safe according to the opusfile documentation. */
et_add_file_tags_from_vorbis_comments ((vorbis_comment *)tags, FileTag,
g_file_info_get_display_name (info));
g_object_unref (info);
op_free (file);
g_assert (error == NULL || *error == NULL);
return TRUE;
}
