static gboolean
xmms_mad_init (xmms_xform_t *xform)
{
struct mad_frame frame;
struct mad_stream stream;
xmms_error_t err;
guchar buf[40960];
xmms_mad_data_t *data;
int len;
const gchar *metakey;
g_return_val_if_fail (xform, FALSE);
data = g_new0 (xmms_mad_data_t, 1);
mad_stream_init (&data->stream);
mad_frame_init (&data->frame);
mad_synth_init (&data->synth);
xmms_xform_private_data_set (xform, data);
data->buffer_length = 0;
data->synthpos = 0x7fffffff;
mad_stream_init (&stream);
mad_frame_init (&frame);
len = xmms_xform_peek (xform, buf, 40960, &err);
mad_stream_buffer (&stream, buf, len);
while (mad_frame_decode (&frame, &stream) == -1) {
if (!MAD_RECOVERABLE (stream.error)) {
XMMS_DBG ("couldn't decode %02x %02x %02x %02x",buf[0],buf[1],buf[2],buf[3]);
mad_frame_finish (&frame);
mad_stream_finish (&stream);
return FALSE;
}
}
data->channels = frame.header.mode == MAD_MODE_SINGLE_CHANNEL ? 1 : 2;
data->samplerate = frame.header.samplerate;
if (frame.header.flags & MAD_FLAG_PROTECTION) {
XMMS_DBG ("Frame has protection enabled");
if (stream.anc_ptr.byte > stream.buffer + 2) {
stream.anc_ptr.byte = stream.anc_ptr.byte - 2;
}
}
data->samples_to_play = -1;
data->xing = xmms_xing_parse (stream.anc_ptr);
if (data->xing) {
xmms_xing_lame_t *lame;
XMMS_DBG ("File with Xing header!");
metakey = XMMS_MEDIALIB_ENTRY_PROPERTY_IS_VBR;
xmms_xform_metadata_set_int (xform, metakey, 1);
if (xmms_xing_has_flag (data->xing, XMMS_XING_FRAMES)) {
guint duration;
mad_timer_t timer;
timer = frame.header.duration;
mad_timer_multiply (&timer, xmms_xing_get_frames (data->xing));
duration = mad_timer_count (timer, MAD_UNITS_MILLISECONDS);
XMMS_DBG ("XING duration %d", duration);
metakey = XMMS_MEDIALIB_ENTRY_PROPERTY_DURATION;
xmms_xform_metadata_set_int (xform, metakey, duration);
if (xmms_xing_has_flag (data->xing, XMMS_XING_BYTES) && duration) {
guint tmp;
tmp = xmms_xing_get_bytes (data->xing) * ((guint64)8000) / duration;
XMMS_DBG ("XING bitrate %d", tmp);
metakey = XMMS_MEDIALIB_ENTRY_PROPERTY_BITRATE;
xmms_xform_metadata_set_int (xform, metakey, tmp);
}
}
lame = xmms_xing_get_lame (data->xing);
if (lame) {
/* FIXME: add a check for ignore_lame_headers from the medialib */
data->frames_to_skip = 1;
data->samples_to_skip = lame->start_delay;
data->samples_to_play = ((guint64) xmms_xing_get_frames (data->xing) * 1152ULL) -
lame->start_delay - lame->end_padding;
XMMS_DBG ("Samples to skip in the beginning: %d, total: %" G_GINT64_FORMAT,
data->samples_to_skip, data->samples_to_play);
/*
metakey = XMMS_MEDIALIB_ENTRY_PROPERTY_GAIN_ALBUM;
xmms_xform_metadata_set_int (xform, metakey, lame->audiophile_gain);
metakey = XMMS_MEDIALIB_ENTRY_PROPERTY_PEAK_TRACK;
xmms_xform_metadata_set_int (xform, metakey, lame->peak_amplitude);
metakey = XMMS_MEDIALIB_ENTRY_PROPERTY_GAIN_TRACK;
xmms_xform_metadata_set_int (xform, metakey, lame->radio_gain);
*/
}
} else {
gint filesize;
metakey = XMMS_MEDIALIB_ENTRY_PROPERTY_BITRATE;
xmms_xform_metadata_set_int (xform, metakey, frame.header.bitrate);
metakey = XMMS_MEDIALIB_ENTRY_PROPERTY_DURATION;
if (!xmms_xform_metadata_get_int (xform, metakey, &filesize)) {
metakey = XMMS_MEDIALIB_ENTRY_PROPERTY_SIZE;
if (xmms_xform_metadata_get_int (xform, metakey, &filesize)) {
gint32 val;
val = (gint32) (filesize * (gdouble) 8000.0 / frame.header.bitrate);
metakey = XMMS_MEDIALIB_ENTRY_PROPERTY_DURATION;
xmms_xform_metadata_set_int (xform, metakey, val);
}
}
}
/* seeking needs bitrate */
data->bitrate = frame.header.bitrate;
if (xmms_id3v1_get_tags (xform) < 0) {
mad_stream_finish (&data->stream);
mad_frame_finish (&data->frame);
mad_synth_finish (&data->synth);
if (data->xing) {
xmms_xing_free (data->xing);
}
return FALSE;
}
xmms_xform_outdata_type_add (xform,
XMMS_STREAM_TYPE_MIMETYPE,
"audio/pcm",
XMMS_STREAM_TYPE_FMT_FORMAT,
XMMS_SAMPLE_FORMAT_S16,
XMMS_STREAM_TYPE_FMT_CHANNELS,
data->channels,
XMMS_STREAM_TYPE_FMT_SAMPLERATE,
data->samplerate,
XMMS_STREAM_TYPE_END);
mad_frame_finish (&frame);
mad_stream_finish (&stream);
return TRUE;
}
static gboolean
xmms_mpg123_init (xmms_xform_t *xform)
{
xmms_mpg123_data_t *data;
const long *rates;
size_t num_rates;
int encoding;
off_t length;
int i, result;
g_return_val_if_fail (xform, FALSE);
data = g_new0 (xmms_mpg123_data_t, 1);
xmms_xform_private_data_set (xform, data);
/* Get the total size of this stream and store it for later */
if (xmms_xform_metadata_get_int (xform,
XMMS_MEDIALIB_ENTRY_PROPERTY_SIZE,
&result)) {
data->filesize = result;
}
mpg123_rates (&rates, &num_rates);
data->param = mpg123_new_pars (&result);
g_return_val_if_fail (data->param, FALSE);
/* Create a quiet (stderr) decoder with auto choosen optimization.
* Stuff set here should be tunable via plugin config properties!
* You can also change some things during playback...
*/
mpg123_par (data->param, MPG123_ADD_FLAGS, MPG123_QUIET, 0);
mpg123_par (data->param, MPG123_ADD_FLAGS, MPG123_GAPLESS, 0);
/* choose: MPG123_RVA_OFF, MPG123_RVA_MIX, MPG123_RVA_ALBUM
* xmms2 has its own ReplayGain plugin to handle the RVA field */
mpg123_par (data->param, MPG123_RVA, MPG123_RVA_OFF, 0);
/* You could choose a decoder from the list provided by
* mpg123_supported_decoders () and give that as second parameter.
*/
data->decoder = mpg123_parnew (data->param, NULL, &result);
if (data->decoder == NULL) {
xmms_log_error ("%s", mpg123_plain_strerror (result));
goto bad;
}
/* Prepare for buffer input feeding. */
result = mpg123_open_feed (data->decoder);
if (result != MPG123_OK) {
goto mpg123_bad;
}
/* Let's always decode to signed 16bit for a start.
Any mpg123-supported sample rate is accepted. */
if (MPG123_OK != mpg123_format_none (data->decoder)) {
goto mpg123_bad;
}
for (i = 0; i < num_rates; i++) {
result = mpg123_format (data->decoder, rates[i],
MPG123_MONO | MPG123_STEREO,
MPG123_ENC_SIGNED_16);
if (result != MPG123_OK) {
goto mpg123_bad;
}
}
/* Fetch ID3v1 data from the end of file if possible */
result = xmms_id3v1_get_tags (xform);
if (result < 0) {
xmms_log_error ("Seeking error when reading ID3v1 tags");
goto bad;
} else if (data->filesize > result) {
/* Reduce the size of tag data from the filesize */
data->filesize -= result;
}
/* Read data from input until decoded data is available from decoder */
do {
/* Parse stream and get info. */
gint ret;
xmms_error_t err;
ret = xmms_xform_read (xform, data->buf, BUFSIZE, &err);
if (ret < 0) {
xmms_log_error ("Error when trying to find beginning of stream");
goto bad;
} else if (ret == 0) {
/* EOF reached before format was found, handled after loop */
break;
}
/* With zero output size nothing is actually outputted */
result = mpg123_decode (data->decoder, data->buf,
(size_t) ret, NULL, 0, NULL);
} while (result == MPG123_NEED_MORE); /* Keep feeding... */
if (result != MPG123_NEW_FORMAT) {
xmms_log_error ("Unable to find beginning of stream (%s)!",
result == MPG123_ERR ? mpg123_strerror (data->decoder)
: "unexpected EOF");
goto bad;
}
result = mpg123_getformat (data->decoder, &data->samplerate,
&data->channels, &encoding);
if (result != MPG123_OK) {
goto mpg123_bad;
}
/* Set the filesize so it can be used for duration estimation */
if (data->filesize > 0) {
mpg123_set_filesize (data->decoder, data->filesize);
}
/* Get duration in samples, convert to ms and save to xmms2 */
length = mpg123_length (data->decoder);
if (length > 0 &&
!xmms_xform_metadata_get_int (xform,
XMMS_MEDIALIB_ENTRY_PROPERTY_DURATION,
&i)) {
length = (off_t) ((gfloat) length / data->samplerate * 1000);
xmms_xform_metadata_set_int (xform,
XMMS_MEDIALIB_ENTRY_PROPERTY_DURATION,
(gint) length);
}
XMMS_DBG ("mpg123: got stream with %li Hz %i channels, encoding %i",
data->samplerate, data->channels, encoding);
xmms_xform_outdata_type_add (xform,
XMMS_STREAM_TYPE_MIMETYPE,
"audio/pcm",
XMMS_STREAM_TYPE_FMT_FORMAT,
XMMS_SAMPLE_FORMAT_S16,
XMMS_STREAM_TYPE_FMT_CHANNELS,
data->channels,
XMMS_STREAM_TYPE_FMT_SAMPLERATE,
(gint) data->samplerate,
XMMS_STREAM_TYPE_END);
return TRUE;
mpg123_bad:
xmms_log_error ("mpg123 error: %s", mpg123_strerror (data->decoder));
bad:
mpg123_delete (data->decoder);
mpg123_delete_pars (data->param);
g_free (data);
return FALSE;
}
