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gst: Various driver cleanups 

Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
This commit is contained in:
Anna Schumaker 2014-12-20 11:15:38 -05:00
parent a4ad0aa79b
commit 955129edce
1 changed files with 44 additions and 85 deletions
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129
gui/gst.cpp
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@ -35,48 +35,57 @@ private:
std::string cur_file;
public:
/**
* Load a track into the gstreamer pipeline.
* @param filepath The file to be loaded.
*/
void load(const std::string &);
void load(const std::string &filepath)
{
gchar *uri;
/**
* Begin playback on the GStreamer pipeline.
* @return True if the state change was successful.
*/
bool play();
cur_file = filepath;
gst_change_state(GST_STATE_NULL);
uri = gst_filename_to_uri(filepath.c_str(), NULL);
g_object_set(G_OBJECT(gst_player), "uri", uri, NULL);
g_free(uri);
}
/**
* Pause the GStreamer pipeline.
* @return True if the state change was successful.
*/
bool pause();
bool play()
{
return gst_change_state(GST_STATE_PLAYING);
}
/**
* Check if the GStreamer pipeline is playing.
* @return True if the pipeline is playing.
*/
bool is_playing();
bool pause()
{
return gst_change_state(GST_STATE_PAUSED);
}
bool is_playing()
{
GstState state;
gst_element_get_state(gst_player, &state, NULL, GST_CLOCK_TIME_NONE);
return state == GST_STATE_PLAYING;
}
/**
* Seek to a specific position in the pipeline.
* @param offset Offset from the beginning of the pipeline, in nanoseconds.
*/
void seek_to(long);
void seek_to(long offset)
{
gst_element_seek_simple(gst_player,
GST_FORMAT_TIME,
GST_SEEK_FLAG_FLUSH,
offset);
}
/**
* Find the current playback position of the pipeline.
* @return The current position of the pipeline, in nanoseconds.
*/
long position();
long position()
{
long position;
if (gst_element_query_position(gst_player, GST_FORMAT_TIME, &position))
return position;
return 0;
}
/**
* Find the duration of the pipeline.
* @return The duration of the pipeline, in nanoseconds.
*/
long duration();
long duration()
{
long duration;
if (gst_element_query_duration(gst_player, GST_FORMAT_TIME, &duration))
return duration;
return 0;
}
/**
@ -107,56 +116,6 @@ static void parse_gst_error(GstMessage *error, const std::string filepath)
g_free(debug);
}
void GSTDriver :: load(const std::string &filepath)
{
gchar *uri;
cur_file = filepath;
gst_change_state(GST_STATE_NULL);
uri = gst_filename_to_uri(filepath.c_str(), NULL);
g_object_set(G_OBJECT(gst_player), "uri", uri, NULL);
g_free(uri);
}
bool GSTDriver :: play()
{
return gst_change_state(GST_STATE_PLAYING);
}
bool GSTDriver :: pause()
{
return gst_change_state(GST_STATE_PAUSED);
}
bool GSTDriver :: is_playing()
{
GstState state;
gst_element_get_state(gst_player, &state, NULL, GST_CLOCK_TIME_NONE);
return state == GST_STATE_PLAYING;
}
void GSTDriver :: seek_to(long offset)
{
gst_element_seek_simple(gst_player, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH, offset);
}
long GSTDriver :: position()
{
long position;
if (gst_element_query_position(gst_player, GST_FORMAT_TIME, &position))
return position;
return 0;
}
long GSTDriver :: duration()
{
long duration;
if (gst_element_query_duration(gst_player, GST_FORMAT_TIME, &duration))
return duration;
return 0;
}
void GSTDriver :: on_message(GstMessage *message)
{
switch (GST_MESSAGE_TYPE(message)) {