diff options
Diffstat (limited to 'ext/timidity/gsttimidity.c')
| -rw-r--r-- | ext/timidity/gsttimidity.c | 821 |
1 files changed, 0 insertions, 821 deletions
diff --git a/ext/timidity/gsttimidity.c b/ext/timidity/gsttimidity.c deleted file mode 100644 index 0b3f3769a..000000000 --- a/ext/timidity/gsttimidity.c +++ /dev/null @@ -1,821 +0,0 @@ -/* - * gsttimdity - timidity plugin for gstreamer - * - * Copyright 2007 Wouter Paesen <wouter@blue-gate.be> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, - * Boston, MA 02110-1301, USA. - */ - -/** - * SECTION:element-timidity - * @see_also: wildmidi - * - * This element renders midi-files as audio streams using - * <ulink url="http://timidity.sourceforge.net/">Timidity</ulink>. - * - * <refsect2> - * <title>Example pipeline</title> - * |[ - * gst-launch filesrc location=song.mid ! timidity ! alsasink - * ]| This example pipeline will parse the midi and render to raw audio which is - * played via alsa. - * </refsect2> - */ - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include <gst/gst.h> -#include <string.h> - -#include "gsttimidity.h" - -#ifndef TIMIDITY_CFG -#define TIMIDITY_CFG "/etc/timidity.cfg" -#endif - -GST_DEBUG_CATEGORY_STATIC (gst_timidity_debug); -#define GST_CAT_DEFAULT gst_timidity_debug - -enum -{ - /* FILL ME */ - LAST_SIGNAL -}; - -enum -{ - ARG_0, - /* FILL ME */ -}; - -static gboolean gst_timidity_src_event (GstPad * pad, GstEvent * event); -static GstStateChangeReturn gst_timidity_change_state (GstElement * element, - GstStateChange transition); -static gboolean gst_timidity_activate (GstPad * pad); -static gboolean gst_timidity_activatepull (GstPad * pad, gboolean active); -static void gst_timidity_loop (GstPad * sinkpad); -static gboolean gst_timidity_src_query (GstPad * pad, GstQuery * query); -static gboolean gst_timidity_set_song_options (GstTimidity * timidity, - MidSongOptions * options); - -static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("audio/midi; audio/riff-midi") - ); - -static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("audio/x-raw-int, " - "rate = (int) 44100, " - "channels = (int) 2, " - "endianness = (int) LITTLE_ENDIAN, " - "width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")); - -GST_BOILERPLATE (GstTimidity, gst_timidity, GstElement, GST_TYPE_ELEMENT); - -static void -gst_timidity_base_init (gpointer gclass) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (gclass); - - gst_element_class_add_static_pad_template (element_class, &src_factory); - gst_element_class_add_static_pad_template (element_class, &sink_factory); - gst_element_class_set_static_metadata (element_class, "Timidity", - "Codec/Decoder/Audio", - "Midi Synthesizer Element", "Wouter Paesen <wouter@blue-gate.be>"); -} - -/* initialize the plugin's class */ -static void -gst_timidity_class_init (GstTimidityClass * klass) -{ - GstElementClass *gstelement_class; - - gstelement_class = (GstElementClass *) klass; - gstelement_class->change_state = gst_timidity_change_state; -} - -/* initialize the new element - * instantiate pads and add them to element - * set functions - * initialize structure - */ -static void -gst_timidity_init (GstTimidity * filter, GstTimidityClass * g_class) -{ - GstElementClass *klass = GST_ELEMENT_GET_CLASS (filter); - - /* initialise timidity library */ - if (mid_init ((char *) TIMIDITY_CFG) == 0) { - filter->initialized = TRUE; - } else { - GST_WARNING ("can't initialize timidity with config: " TIMIDITY_CFG); - } - - filter->sinkpad = - gst_pad_new_from_template (gst_element_class_get_pad_template (klass, - "sink"), "sink"); - - gst_pad_set_activatepull_function (filter->sinkpad, - gst_timidity_activatepull); - gst_pad_set_activate_function (filter->sinkpad, gst_timidity_activate); - gst_pad_set_setcaps_function (filter->sinkpad, gst_pad_set_caps); - gst_pad_use_fixed_caps (filter->sinkpad); - gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad); - - filter->srcpad = - gst_pad_new_from_template (gst_element_class_get_pad_template (klass, - "src"), "src"); - - gst_pad_set_query_function (filter->srcpad, gst_timidity_src_query); - gst_pad_set_event_function (filter->srcpad, gst_timidity_src_event); - gst_pad_use_fixed_caps (filter->srcpad); - gst_pad_set_setcaps_function (filter->srcpad, gst_pad_set_caps); - - gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad); - - filter->song_options->buffer_size = 2048; - filter->song_options->rate = 44100; - filter->song_options->format = MID_AUDIO_S16LSB; - filter->song_options->channels = 2; - - gst_timidity_set_song_options (filter, filter->song_options); - - gst_segment_init (filter->o_segment, GST_FORMAT_DEFAULT); -} - -static gboolean -gst_timidity_set_song_options (GstTimidity * timidity, MidSongOptions * options) -{ - gint64 bps; - - switch (options->format) { - case MID_AUDIO_U8: - case MID_AUDIO_S8: - bps = 1; - break; - case MID_AUDIO_U16LSB: - case MID_AUDIO_S16LSB: - case MID_AUDIO_U16MSB: - case MID_AUDIO_S16MSB: - bps = 2; - break; - default: - return FALSE; - } - - bps *= options->channels; - - if (options != timidity->song_options) - memcpy (timidity->song_options, options, sizeof (MidSongOptions)); - - timidity->bytes_per_frame = bps; - timidity->time_per_frame = GST_SECOND / (GstClockTime) options->rate; - - return TRUE; -} - -static gboolean -gst_timidity_src_convert (GstTimidity * timidity, - GstFormat src_format, gint64 src_value, - GstFormat * dest_format, gint64 * dest_value) -{ - gboolean res = TRUE; - gint64 frames; - - if (src_format == *dest_format) { - *dest_value = src_value; - goto done; - } - - switch (src_format) { - case GST_FORMAT_TIME: - frames = src_value / timidity->time_per_frame; - break; - case GST_FORMAT_BYTES: - frames = src_value / (timidity->bytes_per_frame); - break; - case GST_FORMAT_DEFAULT: - frames = src_value; - break; - default: - res = FALSE; - goto done; - } - - switch (*dest_format) { - case GST_FORMAT_TIME: - *dest_value = frames * timidity->time_per_frame; - break; - case GST_FORMAT_BYTES: - *dest_value = frames * timidity->bytes_per_frame; - break; - case GST_FORMAT_DEFAULT: - *dest_value = frames; - break; - default: - res = FALSE; - break; - } - -done: - return res; -} - -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:{ - GstFormat format; - gint64 start, stop; - - format = timidity->o_segment->format; - - start = - gst_segment_to_stream_time (timidity->o_segment, format, - timidity->o_segment->start); - if ((stop = timidity->o_segment->stop) == -1) - stop = timidity->o_segment->duration; - else - stop = gst_segment_to_stream_time (timidity->o_segment, format, stop); - - gst_query_set_segment (query, timidity->o_segment->rate, format, start, - stop); - res = TRUE; - 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 gboolean -gst_timidity_get_upstream_size (GstTimidity * timidity, gint64 * size) -{ - GstFormat format = GST_FORMAT_BYTES; - gboolean res = FALSE; - GstPad *peer = gst_pad_get_peer (timidity->sinkpad); - - if (peer != NULL) - res = gst_pad_query_duration (peer, &format, size) && *size >= 0; - - gst_object_unref (peer); - return res; -} - -static GstSegment * -gst_timidity_get_segment (GstTimidity * timidity, GstFormat format, - gboolean update) -{ - gint64 start = 0, stop = 0, time = 0; - - GstSegment *segment = gst_segment_new (); - - gst_timidity_src_convert (timidity, - timidity->o_segment->format, timidity->o_segment->start, &format, &start); - - if (timidity->o_segment->stop == GST_CLOCK_TIME_NONE) { - stop = GST_CLOCK_TIME_NONE; - } else { - gst_timidity_src_convert (timidity, - timidity->o_segment->format, timidity->o_segment->stop, &format, &stop); - } - - gst_timidity_src_convert (timidity, - timidity->o_segment->format, timidity->o_segment->time, &format, &time); - - gst_segment_set_newsegment_full (segment, update, - timidity->o_segment->rate, timidity->o_segment->applied_rate, - format, start, stop, time); - - segment->last_stop = time; - - return segment; -} - -static GstEvent * -gst_timidity_get_new_segment_event (GstTimidity * timidity, GstFormat format, - gboolean update) -{ - GstSegment *segment; - GstEvent *event; - - segment = gst_timidity_get_segment (timidity, format, update); - - event = gst_event_new_new_segment_full (update, - segment->rate, segment->applied_rate, segment->format, - segment->start, segment->stop, segment->time); - - gst_segment_free (segment); - - return event; -} - -static gboolean -gst_timidity_src_event (GstPad * pad, GstEvent * event) -{ - gboolean res = FALSE; - GstTimidity *timidity = GST_TIMIDITY (gst_pad_get_parent (pad)); - - GST_DEBUG_OBJECT (pad, "%s event received", GST_EVENT_TYPE_NAME (event)); - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_SEEK: - { - gdouble rate; - GstFormat src_format, dst_format; - GstSeekFlags flags; - GstSeekType start_type, stop_type; - gint64 orig_start, start = 0, stop = 0; - gboolean flush, update; - - if (!timidity->song) - break; - - gst_event_parse_seek (event, &rate, &src_format, &flags, - &start_type, &orig_start, &stop_type, &stop); - - dst_format = GST_FORMAT_DEFAULT; - - gst_timidity_src_convert (timidity, src_format, orig_start, - &dst_format, &start); - gst_timidity_src_convert (timidity, src_format, stop, &dst_format, &stop); - - flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH); - - if (flush) { - GST_DEBUG ("performing flush"); - gst_pad_push_event (timidity->srcpad, gst_event_new_flush_start ()); - } else { - gst_pad_stop_task (timidity->sinkpad); - } - - GST_PAD_STREAM_LOCK (timidity->sinkpad); - - if (flush) { - gst_pad_push_event (timidity->srcpad, gst_event_new_flush_stop ()); - } - - gst_segment_set_seek (timidity->o_segment, rate, dst_format, flags, - start_type, start, stop_type, stop, &update); - - if (flags & GST_SEEK_FLAG_SEGMENT) { - GST_DEBUG_OBJECT (timidity, "received segment seek %d, %d", - (gint) start_type, (gint) stop_type); - } else { - GST_DEBUG_OBJECT (timidity, "received normal seek %d", - (gint) start_type); - update = FALSE; - } - - gst_pad_push_event (timidity->srcpad, - gst_timidity_get_new_segment_event (timidity, GST_FORMAT_TIME, - update)); - - timidity->o_seek = TRUE; - - gst_pad_start_task (timidity->sinkpad, - (GstTaskFunction) gst_timidity_loop, timidity->sinkpad, NULL); - - GST_PAD_STREAM_UNLOCK (timidity->sinkpad); - GST_DEBUG ("seek done"); - } - res = TRUE; - break; - default: - break; - } - - g_object_unref (timidity); - return res; -} - -static gboolean -gst_timidity_activate (GstPad * sinkpad) -{ - if (gst_pad_check_pull_range (sinkpad)) - return gst_pad_activate_pull (sinkpad, TRUE); - - return FALSE; -} - -static gboolean -gst_timidity_activatepull (GstPad * pad, gboolean active) -{ - if (active) { - return gst_pad_start_task (pad, (GstTaskFunction) gst_timidity_loop, pad, - NULL); - } else { - return gst_pad_stop_task (pad); - } -} - -static GstBuffer * -gst_timidity_allocate_buffer (GstTimidity * timidity, gint64 samples) -{ - return gst_buffer_new_and_alloc (samples * timidity->bytes_per_frame); -} - -static GstBuffer * -gst_timidity_clip_buffer (GstTimidity * timidity, GstBuffer * buffer) -{ - gint64 new_start, new_stop; - gint64 offset, length; - GstBuffer *out; - - return buffer; - - if (!gst_segment_clip (timidity->o_segment, GST_FORMAT_DEFAULT, - GST_BUFFER_OFFSET (buffer), GST_BUFFER_OFFSET_END (buffer), - &new_start, &new_stop)) { - gst_buffer_unref (buffer); - return NULL; - } - - if (GST_BUFFER_OFFSET (buffer) == new_start && - GST_BUFFER_OFFSET_END (buffer) == new_stop) - return buffer; - - offset = new_start - GST_BUFFER_OFFSET (buffer); - length = new_stop - new_start; - - out = gst_buffer_create_sub (buffer, offset * timidity->bytes_per_frame, - length * timidity->bytes_per_frame); - - GST_BUFFER_OFFSET (out) = new_start; - GST_BUFFER_OFFSET_END (out) = new_stop; - GST_BUFFER_TIMESTAMP (out) = new_start * timidity->time_per_frame; - GST_BUFFER_DURATION (out) = (new_stop - new_start) * timidity->time_per_frame; - - gst_buffer_unref (buffer); - - return out; -} - -/* generate audio data and advance internal timers */ -static GstBuffer * -gst_timidity_fill_buffer (GstTimidity * timidity, GstBuffer * buffer) -{ - size_t bytes_read; - gint64 samples; - - bytes_read = mid_song_read_wave (timidity->song, GST_BUFFER_DATA (buffer), - GST_BUFFER_SIZE (buffer)); - - if (bytes_read == 0) { - gst_buffer_unref (buffer); - return NULL; - } - - GST_BUFFER_OFFSET (buffer) = - timidity->o_segment->last_stop * timidity->bytes_per_frame; - GST_BUFFER_TIMESTAMP (buffer) = - timidity->o_segment->last_stop * timidity->time_per_frame; - - if (bytes_read < GST_BUFFER_SIZE (buffer)) { - GstBuffer *old = buffer; - - buffer = gst_buffer_create_sub (buffer, 0, bytes_read); - gst_buffer_unref (old); - } - - samples = GST_BUFFER_SIZE (buffer) / timidity->bytes_per_frame; - - timidity->o_segment->last_stop += samples; - - GST_BUFFER_OFFSET_END (buffer) = - timidity->o_segment->last_stop * timidity->bytes_per_frame; - GST_BUFFER_DURATION (buffer) = samples * timidity->time_per_frame; - - GST_DEBUG_OBJECT (timidity, - "generated buffer %" GST_TIME_FORMAT "-%" GST_TIME_FORMAT - " (%" G_GINT64_FORMAT " samples)", - GST_TIME_ARGS ((guint64) GST_BUFFER_TIMESTAMP (buffer)), - GST_TIME_ARGS (((guint64) (GST_BUFFER_TIMESTAMP (buffer) + - GST_BUFFER_DURATION (buffer)))), samples); - - return buffer; -} - -static GstBuffer * -gst_timidity_get_buffer (GstTimidity * timidity) -{ - GstBuffer *out; - - out = - gst_timidity_fill_buffer (timidity, - gst_timidity_allocate_buffer (timidity, 256)); - - if (!out) - return NULL; - - return gst_timidity_clip_buffer (timidity, out); -} - -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; - } - - 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 = NULL; - 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"); - -#if defined(LIBTIMIDITY_VERSION) && LIBTIMIDITY_VERSION < 0x000200L - stream = - mid_istream_open_mem (timidity->mididata, timidity->mididata_size, 0); -#else - stream = mid_istream_open_mem (timidity->mididata, timidity->mididata_size); -#endif - - 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 (ret == GST_FLOW_UNEXPECTED) - goto eos; - else if (ret < GST_FLOW_UNEXPECTED || ret == GST_FLOW_NOT_LINKED) - goto error; - - return; - -paused: - { - GST_DEBUG_OBJECT (timidity, "pausing task"); - gst_pad_pause_task (timidity->sinkpad); - return; - } -eos: - { - gst_pad_push_event (timidity->srcpad, gst_event_new_eos ()); - goto paused; - } -error: - { - GST_ELEMENT_FLOW_ERROR (timidity, ret); - gst_pad_push_event (timidity->srcpad, gst_event_new_eos ()); - goto paused; - } -} - -static GstStateChangeReturn -gst_timidity_change_state (GstElement * element, GstStateChange transition) -{ - GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; - GstTimidity *timidity = GST_TIMIDITY (element); - - if (!timidity->initialized) { - GST_WARNING ("Timidity renderer is not initialized"); - return GST_STATE_CHANGE_FAILURE; - } - - switch (transition) { - case GST_STATE_CHANGE_NULL_TO_READY: - timidity->out_caps = - gst_caps_copy (gst_pad_get_pad_template_caps (timidity->srcpad)); - timidity->mididata = NULL; - break; - case GST_STATE_CHANGE_READY_TO_PAUSED: - timidity->mididata_size = 0; - break; - case GST_STATE_CHANGE_PAUSED_TO_PLAYING: - break; - default: - break; - } - - ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); - - switch (transition) { - case GST_STATE_CHANGE_PLAYING_TO_PAUSED: - break; - case GST_STATE_CHANGE_PAUSED_TO_READY: - if (timidity->song) - mid_song_free (timidity->song); - timidity->song = NULL; - timidity->mididata_size = 0; - if (timidity->mididata) { - g_free (timidity->mididata); - timidity->mididata = NULL; - } - break; - case GST_STATE_CHANGE_READY_TO_NULL: - gst_caps_unref (timidity->out_caps); - break; - default: - break; - } - - return ret; -} - -static gboolean -plugin_init (GstPlugin * plugin) -{ - GST_DEBUG_CATEGORY_INIT (gst_timidity_debug, "timidity", - 0, "Timidity plugin"); - - return gst_element_register (plugin, "timidity", - GST_RANK_PRIMARY, GST_TYPE_TIMIDITY); -} - -GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, - GST_VERSION_MINOR, - timidity, - "Timidity Plugin", - plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN) |