static gboolean
gst_timidity_src_query (GstPad * pad, GstQuery * query)
{
gboolean res = TRUE;
GstTimidity *timidity = GST_TIMIDITY (gst_pad_get_parent (pad));
GstFormat src_format, dst_format;
gint64 src_value, dst_value;
if (!timidity->song) {
gst_object_unref (timidity);
return FALSE;
}
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
gst_query_set_duration (query, GST_FORMAT_TIME,
GST_MSECOND * (gint64) mid_song_get_total_time (timidity->song));
break;
case GST_QUERY_POSITION:
gst_query_set_position (query, GST_FORMAT_TIME,
timidity->o_segment->last_stop * timidity->time_per_frame);
break;
case GST_QUERY_CONVERT:
gst_query_parse_convert (query, &src_format, &src_value,
&dst_format, NULL);
res =
gst_timidity_src_convert (timidity, src_format, src_value,
&dst_format, &dst_value);
if (res)
gst_query_set_convert (query, src_format, src_value, dst_format,
dst_value);
break;
case GST_QUERY_FORMATS:
gst_query_set_formats (query, 3,
GST_FORMAT_TIME, GST_FORMAT_BYTES, GST_FORMAT_DEFAULT);
break;
case GST_QUERY_SEGMENT:
gst_query_set_segment (query, timidity->o_segment->rate,
timidity->o_segment->format, timidity->o_segment->start,
timidity->o_segment->stop);
break;
case GST_QUERY_SEEKING:
gst_query_set_seeking (query, timidity->o_segment->format,
TRUE, 0, timidity->o_len);
break;
default:
res = FALSE;
break;
}
gst_object_unref (timidity);
return res;
}
static void timidity_info (const char *file_name, struct file_tags *info,
const int tags_sel)
{
struct timidity_data *data = make_timidity_data(file_name);
if(data->midisong==NULL)
return;
if(tags_sel & TAGS_TIME) {
info->time = mid_song_get_total_time(data->midisong) / 1000;
info->filled |= TAGS_TIME;
}
timidity_close(data);
}
static void *timidity_open (const char *file)
{
struct timidity_data *data = make_timidity_data(file);
if(data->midisong) {
data->length = mid_song_get_total_time(data->midisong);
}
if(data->midisong) {
debug ("Opened file %s", file);
mid_song_set_volume(data->midisong, options_get_int("TiMidity_Volume"));
mid_song_start(data->midisong);
}
return data;
}
void MidiDecoder::start()
{
if (!d->initialized)
{
QIODevice::open(QIODevice::ReadWrite | QIODevice::Unbuffered);
d->options.rate = d->outputInfo.frequency;
d->options.format = MID_AUDIO_S16LSB; // 16
d->options.channels = d->outputInfo.channels;
d->options.buffer_size = MIDI_BUFFER_SIZE / (16 * 2 / 8);
d->midiStream = mid_istream_open_callbacks(midiReadCallback,
midiCloseCallback,
this);
d->song = mid_song_load(d->midiStream, &d->options);
if (d->song != 0)
{
d->state = QtopiaMedia::Playing;
d->length = mid_song_get_total_time(d->song);
emit lengthChanged(d->length);
mid_song_set_volume(d->song, d->muted ? 0 : d->volume * 2);
mid_song_start(d->song);
d->initialized = true;
}
else {
qLog(Media) << "MidiDecoder::start(); Failed to load MIDI file";
d->state = QtopiaMedia::Error;
}
}
else
d->state = QtopiaMedia::Playing;
if (d->initialized) {
emit readyRead();
emit playerStateChanged(d->state);
}
}
void MusicDriver_LibTimidity::PlaySong(const char *filename)
{
this->StopSong();
_midi.stream = mid_istream_open_file(filename);
if (_midi.stream == NULL) {
DEBUG(driver, 0, "Could not open music file");
return;
}
_midi.song = mid_song_load(_midi.stream, &_midi.options);
mid_istream_close(_midi.stream);
_midi.song_length = mid_song_get_total_time(_midi.song);
if (_midi.song == NULL) {
DEBUG(driver, 1, "Invalid MIDI file");
return;
}
mid_song_start(_midi.song);
_midi.status = MIDI_PLAYING;
}
static void
gst_timidity_loop (GstPad * sinkpad)
{
GstTimidity *timidity = GST_TIMIDITY (GST_PAD_PARENT (sinkpad));
GstBuffer *out;
GstFlowReturn ret;
if (timidity->mididata_size == 0) {
if (!gst_timidity_get_upstream_size (timidity, &timidity->mididata_size)) {
GST_ELEMENT_ERROR (timidity, STREAM, DECODE, (NULL),
("Unable to get song length"));
goto paused;
}
if (timidity->mididata)
g_free (timidity->mididata);
timidity->mididata = g_malloc (timidity->mididata_size);
timidity->mididata_offset = 0;
return;
}
if (timidity->mididata_offset < timidity->mididata_size) {
GstBuffer *buffer;
gint64 size;
GST_DEBUG_OBJECT (timidity, "loading song");
ret =
gst_pad_pull_range (timidity->sinkpad, timidity->mididata_offset,
-1, &buffer);
if (ret != GST_FLOW_OK) {
GST_ELEMENT_ERROR (timidity, STREAM, DECODE, (NULL),
("Unable to load song"));
goto paused;
}
size = timidity->mididata_size - timidity->mididata_offset;
if (GST_BUFFER_SIZE (buffer) < size)
size = GST_BUFFER_SIZE (buffer);
memmove (timidity->mididata + timidity->mididata_offset,
GST_BUFFER_DATA (buffer), size);
gst_buffer_unref (buffer);
timidity->mididata_offset += size;
GST_DEBUG_OBJECT (timidity, "Song loaded");
return;
}
if (!timidity->song) {
MidIStream *stream;
GstTagList *tags = NULL;
gchar *text;
GST_DEBUG_OBJECT (timidity, "Parsing song");
stream =
mid_istream_open_mem (timidity->mididata, timidity->mididata_size, 0);
timidity->song = mid_song_load (stream, timidity->song_options);
mid_istream_close (stream);
if (!timidity->song) {
GST_ELEMENT_ERROR (timidity, STREAM, DECODE, (NULL),
("Unable to parse midi"));
goto paused;
}
mid_song_start (timidity->song);
timidity->o_len = (GST_MSECOND *
(GstClockTime) mid_song_get_total_time (timidity->song)) /
timidity->time_per_frame;
gst_segment_set_newsegment (timidity->o_segment, FALSE, 1.0,
GST_FORMAT_DEFAULT, 0, GST_CLOCK_TIME_NONE, 0);
gst_pad_push_event (timidity->srcpad,
gst_timidity_get_new_segment_event (timidity, GST_FORMAT_TIME, FALSE));
/* extract tags */
text = mid_song_get_meta (timidity->song, MID_SONG_TEXT);
if (text) {
tags = gst_tag_list_new ();
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND, GST_TAG_TITLE, text, NULL);
//g_free (text);
}
text = mid_song_get_meta (timidity->song, MID_SONG_COPYRIGHT);
if (text) {
if (tags == NULL)
tags = gst_tag_list_new ();
gst_tag_list_add (tags, GST_TAG_MERGE_APPEND,
GST_TAG_COPYRIGHT, text, NULL);
//g_free (text);
}
if (tags) {
gst_element_found_tags (GST_ELEMENT (timidity), tags);
}
GST_DEBUG_OBJECT (timidity, "Parsing song done");
return;
}
if (timidity->o_segment_changed) {
GstSegment *segment = gst_timidity_get_segment (timidity, GST_FORMAT_TIME,
!timidity->o_new_segment);
GST_LOG_OBJECT (timidity,
"sending newsegment from %" GST_TIME_FORMAT "-%" GST_TIME_FORMAT
", pos=%" GST_TIME_FORMAT, GST_TIME_ARGS ((guint64) segment->start),
GST_TIME_ARGS ((guint64) segment->stop),
GST_TIME_ARGS ((guint64) segment->time));
if (timidity->o_segment->flags & GST_SEEK_FLAG_SEGMENT) {
gst_element_post_message (GST_ELEMENT (timidity),
gst_message_new_segment_start (GST_OBJECT (timidity),
segment->format, segment->start));
}
gst_segment_free (segment);
timidity->o_segment_changed = FALSE;
return;
}
if (timidity->o_seek) {
/* perform a seek internally */
timidity->o_segment->last_stop = timidity->o_segment->time;
mid_song_seek (timidity->song,
(timidity->o_segment->last_stop * timidity->time_per_frame) /
GST_MSECOND);
}
out = gst_timidity_get_buffer (timidity);
if (!out) {
GST_LOG_OBJECT (timidity, "Song ended, generating eos");
gst_pad_push_event (timidity->srcpad, gst_event_new_eos ());
timidity->o_seek = FALSE;
goto paused;
}
if (timidity->o_seek) {
GST_BUFFER_FLAG_SET (out, GST_BUFFER_FLAG_DISCONT);
timidity->o_seek = FALSE;
}
gst_buffer_set_caps (out, timidity->out_caps);
ret = gst_pad_push (timidity->srcpad, out);
if (GST_FLOW_IS_FATAL (ret) || ret == GST_FLOW_NOT_LINKED)
goto error;
return;
paused:
{
GST_DEBUG_OBJECT (timidity, "pausing task");
gst_pad_pause_task (timidity->sinkpad);
return;
}
error:
{
GST_ELEMENT_ERROR (timidity, STREAM, FAILED,
("Internal data stream error"),
("Streaming stopped, reason %s", gst_flow_get_name (ret)));
gst_pad_push_event (timidity->srcpad, gst_event_new_eos ());
goto paused;
}
}
