static void
mp3_decode(struct decoder *decoder, struct input_stream *input_stream)
{
struct mp3_data data;
GError *error = NULL;
struct tag *tag = NULL;
struct audio_format audio_format;
if (!mp3_open(input_stream, &data, decoder, &tag)) {
if (decoder_get_command(decoder) == DECODE_COMMAND_NONE)
g_warning
("Input does not appear to be a mp3 bit stream.\n");
return;
}
if (!audio_format_init_checked(&audio_format,
data.frame.header.samplerate,
SAMPLE_FORMAT_S24_P32,
MAD_NCHANNELS(&data.frame.header),
&error)) {
g_warning("%s", error->message);
g_error_free(error);
if (tag != NULL)
tag_free(tag);
mp3_data_finish(&data);
return;
}
decoder_initialized(decoder, &audio_format,
data.input_stream->seekable, data.total_time);
if (tag != NULL) {
decoder_tag(decoder, input_stream, tag);
tag_free(tag);
}
while (mp3_read(&data)) ;
mp3_data_finish(&data);
}
static bool
mp3_open(struct input_stream *is, struct mp3_data *data,
struct decoder *decoder, struct tag **tag)
{
mp3_data_init(data, decoder, is);
*tag = NULL;
if (!mp3_decode_first_frame(data, tag)) {
mp3_data_finish(data);
if (tag && *tag)
tag_free(*tag);
return false;
}
return true;
}
/* this is primarily used for getting total time for tags */
static int
mad_decoder_total_file_time(struct input_stream *is)
{
struct mp3_data data;
int ret;
mp3_data_init(&data, NULL, is);
if (!mp3_decode_first_frame(&data, NULL))
ret = -1;
else
ret = data.total_time + 0.5;
mp3_data_finish(&data);
return ret;
}
/* this is primarily used for getting total time for tags */
static int mp3_total_file_time(const char *file)
{
struct input_stream input_stream;
struct mp3_data data;
int ret;
if (!input_stream_open(&input_stream, file))
return -1;
mp3_data_init(&data, NULL, &input_stream);
if (!mp3_decode_first_frame(&data, NULL, NULL))
ret = -1;
else
ret = data.total_time + 0.5;
mp3_data_finish(&data);
input_stream_close(&input_stream);
return ret;
}
static void
mp3_decode(struct decoder *decoder, struct input_stream *input_stream)
{
struct mp3_data data;
struct tag *tag = NULL;
struct replay_gain_info *replay_gain_info = NULL;
struct audio_format audio_format;
if (!mp3_open(input_stream, &data, decoder, &tag, &replay_gain_info)) {
if (decoder_get_command(decoder) == DECODE_COMMAND_NONE)
g_warning
("Input does not appear to be a mp3 bit stream.\n");
return;
}
mp3_audio_format(&data, &audio_format);
decoder_initialized(decoder, &audio_format,
data.input_stream->seekable, data.total_time);
if (tag != NULL) {
decoder_tag(decoder, input_stream, tag);
tag_free(tag);
}
while (mp3_read(&data, &replay_gain_info)) ;
if (replay_gain_info)
replay_gain_info_free(replay_gain_info);
if (decoder_get_command(decoder) == DECODE_COMMAND_SEEK &&
data.mute_frame == MUTEFRAME_SEEK)
decoder_command_finished(decoder);
mp3_data_finish(&data);
}