static void
gst_bml_transform_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstBMLTransform *bml_transform = GST_BML_TRANSFORM (object);
GstBMLTransformClass *klass = GST_BML_TRANSFORM_GET_CLASS (bml_transform);
GstBML *bml = GST_BML (bml_transform);
GstBMLClass *bml_class = GST_BML_CLASS (klass);
bml (gstbml_set_property (bml, bml_class, prop_id, value, pspec));
}
static gboolean
gst_bml_preset_save_preset (GstPreset * preset, const gchar * name)
{
GstBMLTransform *bml_transform = GST_BML_TRANSFORM (preset);
GstBMLTransformClass *klass = GST_BML_TRANSFORM_GET_CLASS (bml_transform);
GstBML *bml = GST_BML (bml_transform);
GstBMLClass *bml_class = GST_BML_CLASS (klass);
return (gstbml_preset_save_preset (GST_OBJECT (preset), bml, bml_class,
name));
}
static gchar *
gst_bml_property_meta_describe_property (GstBtPropertyMeta * property_meta,
guint prop_id, const GValue * value)
{
GstBMLTransform *bml_transform = GST_BML_TRANSFORM (property_meta);
GstBML *bml = GST_BML (bml_transform);
GstBMLTransformClass *klass = GST_BML_TRANSFORM_GET_CLASS (bml_transform);
GstBMLClass *bml_class = GST_BML_CLASS (klass);
return (bml (gstbml_property_meta_describe_property (bml_class, bml,
prop_id, value)));
}
static void
gstbt_bml_src_set_context (GstElement * element, GstContext * context)
{
guint bpm, tpb, stpb;
if (gstbt_audio_tempo_context_get_tempo (context, &bpm, &tpb, &stpb)) {
GstBML *bml = GST_BML (GST_BML_TRANSFORM (element));
bml (gstbml_tempo_change_tempo (G_OBJECT (element), bml, bpm, tpb, stpb));
}
#if GST_CHECK_VERSION (1,8,0)
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
#else
if (GST_ELEMENT_CLASS (parent_class)->set_context) {
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
#endif
}
/* get notified of caps and reject unsupported ones */
static gboolean
gst_bml_transform_set_caps (GstBaseTransform * base, GstCaps * incaps,
GstCaps * outcaps)
{
GstBMLTransform *bml_transform = GST_BML_TRANSFORM (base);
GstBML *bml = GST_BML (bml_transform);
GstStructure *structure;
gboolean ret;
gint samplerate = bml->samplerate;
GST_DEBUG ("set_caps: in %" GST_PTR_FORMAT " out %" GST_PTR_FORMAT, incaps,
outcaps);
structure = gst_caps_get_structure (incaps, 0);
if ((ret = gst_structure_get_int (structure, "rate", &bml->samplerate))
&& (samplerate != bml->samplerate)) {
bml (set_master_info (bml->beats_per_minute, bml->ticks_per_beat,
bml->samplerate));
// TODO(ensonic): irks, this resets all parameter to their default
//bml(init(bml->bm,0,NULL));
}
return ret;
}
static GstFlowReturn
gst_bml_transform_transform_mono_to_stereo (GstBaseTransform * base,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstMapInfo infoi, infoo;
GstBMLTransform *bml_transform = GST_BML_TRANSFORM (base);
GstBMLTransformClass *klass = GST_BML_TRANSFORM_GET_CLASS (bml_transform);
GstBML *bml = GST_BML (bml_transform);
GstBMLClass *bml_class = GST_BML_CLASS (klass);
BMLData *datai, *datao, *seg_datai, *seg_datao;
gpointer bm = bml->bm;
guint todo, seg_size, samples_per_buffer;
gboolean has_data;
guint mode = 3; /*WM_READWRITE */
bml->running_time =
gst_segment_to_stream_time (&base->segment, GST_FORMAT_TIME,
GST_BUFFER_TIMESTAMP (inbuf));
if (GST_BUFFER_FLAG_IS_SET (outbuf, GST_BUFFER_FLAG_DISCONT)) {
bml->subtick_count = (!bml->reverse) ? bml->subticks_per_tick : 1;
}
if (bml->subtick_count >= bml->subticks_per_tick) {
bml (gstbml_reset_triggers (bml, bml_class));
bml (gstbml_sync_values (bml, bml_class, GST_BUFFER_TIMESTAMP (outbuf)));
bml (tick (bm));
bml->subtick_count = 1;
} else {
bml->subtick_count++;
}
/* don't process data in passthrough-mode */
if (gst_base_transform_is_passthrough (base)) {
// we would actually need to convert mono to stereo here
// but this is not even called
GST_WARNING_OBJECT (bml_transform, "m2s in passthrough mode");
//return GST_FLOW_OK;
}
if (!gst_buffer_map (inbuf, &infoi, GST_MAP_READ)) {
GST_WARNING_OBJECT (base, "unable to map input buffer for read");
return GST_FLOW_ERROR;
}
datai = (BMLData *) infoi.data;
samples_per_buffer = infoi.size / sizeof (BMLData);
if (!gst_buffer_map (outbuf, &infoo, GST_MAP_READ | GST_MAP_WRITE)) {
GST_WARNING_OBJECT (base, "unable to map output buffer for read & write");
return GST_FLOW_ERROR;
}
datao = (BMLData *) infoo.data;
// some buzzmachines expect a cleared buffer
//for(i=0;i<samples_per_buffer*2;i++) datao[i]=0.0f;
memset (datao, 0, samples_per_buffer * 2 * sizeof (BMLData));
/* if buffer has only silence process with different mode */
if (GST_BUFFER_FLAG_IS_SET (outbuf, GST_BUFFER_FLAG_GAP)) {
mode = 2; /* WM_WRITE */
} else {
gfloat fc = 32768.0;
orc_scalarmultiply_f32_ns (datai, datai, fc, samples_per_buffer);
}
GST_DEBUG_OBJECT (bml_transform, " calling work_m2s(%d,%d)",
samples_per_buffer, mode);
todo = samples_per_buffer;
seg_datai = datai;
seg_datao = datao;
has_data = FALSE;
while (todo) {
// 256 is MachineInterface.h::MAX_BUFFER_LENGTH
seg_size = (todo > 256) ? 256 : todo;
has_data |= bml (work_m2s (bm, seg_datai, seg_datao, (int) seg_size, mode));
seg_datai = &seg_datai[seg_size];
seg_datao = &seg_datao[seg_size * 2];
todo -= seg_size;
}
if (gstbml_fix_data ((GstElement *) bml_transform, &infoo, has_data)) {
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_GAP);
} else {
GST_BUFFER_FLAG_UNSET (outbuf, GST_BUFFER_FLAG_GAP);
}
gst_buffer_unmap (inbuf, &infoi);
gst_buffer_unmap (outbuf, &infoo);
return (GST_FLOW_OK);
}
static GstFlowReturn
gst_bml_transform_transform_ip_stereo (GstBaseTransform * base,
GstBuffer * outbuf)
{
GstMapInfo info;
GstBMLTransform *bml_transform = GST_BML_TRANSFORM (base);
GstBMLTransformClass *klass = GST_BML_TRANSFORM_GET_CLASS (bml_transform);
GstBML *bml = GST_BML (bml_transform);
GstBMLClass *bml_class = GST_BML_CLASS (klass);
BMLData *data, *seg_data;
gpointer bm = bml->bm;
guint todo, seg_size, samples_per_buffer;
gboolean has_data;
guint mode = 3; /*WM_READWRITE */
bml->running_time =
gst_segment_to_stream_time (&base->segment, GST_FORMAT_TIME,
GST_BUFFER_TIMESTAMP (outbuf));
if (GST_BUFFER_FLAG_IS_SET (outbuf, GST_BUFFER_FLAG_DISCONT)) {
bml->subtick_count = (!bml->reverse) ? bml->subticks_per_tick : 1;
}
/* TODO(ensonic): sync on subticks ? */
if (bml->subtick_count >= bml->subticks_per_tick) {
bml (gstbml_reset_triggers (bml, bml_class));
bml (gstbml_sync_values (bml, bml_class, GST_BUFFER_TIMESTAMP (outbuf)));
bml (tick (bm));
bml->subtick_count = 1;
} else {
bml->subtick_count++;
}
/* don't process data in passthrough-mode */
if (gst_base_transform_is_passthrough (base))
return GST_FLOW_OK;
if (!gst_buffer_map (outbuf, &info, GST_MAP_READ | GST_MAP_WRITE)) {
GST_WARNING_OBJECT (base, "unable to map buffer for read & write");
return GST_FLOW_ERROR;
}
data = (BMLData *) info.data;
samples_per_buffer = info.size / (sizeof (BMLData) * 2);
/* if buffer has only silence process with different mode */
if (GST_BUFFER_FLAG_IS_SET (outbuf, GST_BUFFER_FLAG_GAP)) {
mode = 2; /* WM_WRITE */
} else {
gfloat fc = 32768.0;
orc_scalarmultiply_f32_ns (data, data, fc, samples_per_buffer * 2);
}
GST_DEBUG_OBJECT (bml_transform, " calling work_m2s(%d,%d)",
samples_per_buffer, mode);
todo = samples_per_buffer;
seg_data = data;
has_data = FALSE;
while (todo) {
// 256 is MachineInterface.h::MAX_BUFFER_LENGTH
seg_size = (todo > 256) ? 256 : todo;
// first seg_data can be NULL, its ignored
has_data |= bml (work_m2s (bm, seg_data, seg_data, (int) seg_size, mode));
seg_data = &seg_data[seg_size * 2];
todo -= seg_size;
}
if (gstbml_fix_data ((GstElement *) bml_transform, &info, has_data)) {
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_GAP);
} else {
GST_BUFFER_FLAG_UNSET (outbuf, GST_BUFFER_FLAG_GAP);
}
gst_buffer_unmap (outbuf, &info);
return (GST_FLOW_OK);
}