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synced 2024-10-06 02:32:23 +00:00
sfdec: add event function and seeking support
This commit is contained in:
parent
bf956c487f
commit
0c34d807d4
2 changed files with 134 additions and 5 deletions
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@ -49,6 +49,8 @@ GST_DEBUG_CATEGORY_STATIC (gst_sf_dec_debug);
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#define DEFAULT_BUFFER_FRAMES (256)
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#define DEFAULT_BUFFER_FRAMES (256)
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static gboolean gst_sf_dec_src_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static gboolean gst_sf_dec_src_query (GstPad * pad, GstObject * parent,
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static gboolean gst_sf_dec_src_query (GstPad * pad, GstObject * parent,
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GstQuery * query);
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GstQuery * query);
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static GstStateChangeReturn gst_sf_dec_change_state (GstElement * element,
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static GstStateChangeReturn gst_sf_dec_change_state (GstElement * element,
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@ -182,12 +184,134 @@ gst_sf_dec_init (GstSFDec * self)
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gst_element_add_pad (GST_ELEMENT (self), self->sinkpad);
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gst_element_add_pad (GST_ELEMENT (self), self->sinkpad);
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self->srcpad = gst_pad_new_from_static_template (&sf_dec_src_factory, "src");
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self->srcpad = gst_pad_new_from_static_template (&sf_dec_src_factory, "src");
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/* TODO(ensonic): event function */
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gst_pad_set_event_function (self->srcpad,
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GST_DEBUG_FUNCPTR (gst_sf_dec_src_event));
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gst_pad_set_query_function (self->srcpad,
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gst_pad_set_query_function (self->srcpad,
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GST_DEBUG_FUNCPTR (gst_sf_dec_src_query));
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GST_DEBUG_FUNCPTR (gst_sf_dec_src_query));
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gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
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gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
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}
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}
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static gboolean
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gst_sf_dec_do_seek (GstSFDec * self, GstEvent * event)
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{
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gdouble rate;
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GstFormat format;
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GstSeekFlags flags;
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GstSeekType cur_type, stop_type;
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gboolean flush;
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gint64 cur, stop, pos;
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GstSegment seg;
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guint64 song_length = gst_util_uint64_scale_int (self->duration, GST_SECOND,
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self->rate);
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gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
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&stop_type, &stop);
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if (format != GST_FORMAT_TIME)
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goto unsupported_format;
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/* FIXME: we should be using GstSegment for all this */
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if (cur_type != GST_SEEK_TYPE_SET || stop_type != GST_SEEK_TYPE_NONE)
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goto unsuported_type;
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if (stop_type == GST_SEEK_TYPE_NONE)
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stop = GST_CLOCK_TIME_NONE;
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if (!GST_CLOCK_TIME_IS_VALID (stop) && song_length > 0)
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stop = song_length;
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cur = CLAMP (cur, -1, song_length);
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/* cur -> pos */
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pos = gst_util_uint64_scale_int (cur, self->rate, GST_SECOND);
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if ((pos = sf_seek (self->file, pos, SEEK_SET) == -1))
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goto seek_failed;
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/* pos -> cur */
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cur = gst_util_uint64_scale_int (pos, GST_SECOND, self->rate);
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GST_DEBUG_OBJECT (self, "seek to %" GST_TIME_FORMAT,
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GST_TIME_ARGS ((guint64) cur));
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flush = ((flags & GST_SEEK_FLAG_FLUSH) == GST_SEEK_FLAG_FLUSH);
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if (flush) {
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gst_pad_push_event (self->srcpad, gst_event_new_flush_start ());
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} else {
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gst_pad_stop_task (self->sinkpad);
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}
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GST_PAD_STREAM_LOCK (self->sinkpad);
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if (flags & GST_SEEK_FLAG_SEGMENT) {
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gst_element_post_message (GST_ELEMENT (self),
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gst_message_new_segment_start (GST_OBJECT (self), format, cur));
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}
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if (flush) {
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gst_pad_push_event (self->srcpad, gst_event_new_flush_stop (TRUE));
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}
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GST_LOG_OBJECT (self, "sending newsegment from %" GST_TIME_FORMAT "-%"
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GST_TIME_FORMAT ", pos=%" GST_TIME_FORMAT,
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GST_TIME_ARGS ((guint64) cur), GST_TIME_ARGS ((guint64) stop),
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GST_TIME_ARGS ((guint64) cur));
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gst_segment_init (&seg, GST_FORMAT_TIME);
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seg.rate = rate;
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seg.start = cur;
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seg.stop = stop;
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seg.time = cur;
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gst_pad_push_event (self->srcpad, gst_event_new_segment (&seg));
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gst_pad_start_task (self->sinkpad,
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(GstTaskFunction) gst_sf_dec_loop, self, NULL);
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GST_PAD_STREAM_UNLOCK (self->sinkpad);
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return TRUE;
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/* ERROR */
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unsupported_format:
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{
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GST_DEBUG_OBJECT (self, "seeking is only supported in TIME format");
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return FALSE;
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}
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unsuported_type:
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{
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GST_DEBUG_OBJECT (self, "unsupported seek type");
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return FALSE;
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}
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seek_failed:
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{
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GST_DEBUG_OBJECT (self, "seek failed");
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return FALSE;
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}
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}
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static gboolean
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gst_sf_dec_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
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{
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GstSFDec *self = GST_SF_DEC (parent);
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gboolean res = FALSE;
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GST_DEBUG_OBJECT (self, "event %s, %" GST_PTR_FORMAT,
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GST_EVENT_TYPE_NAME (event), event);
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_SEEK:
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if (!self->file || !self->seekable)
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goto done;
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res = gst_sf_dec_do_seek (self, event);
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break;
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default:
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res = gst_pad_event_default (pad, parent, event);
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break;
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}
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done:
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GST_DEBUG_OBJECT (self, "event %s: %d", GST_EVENT_TYPE_NAME (event), res);
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return res;
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}
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static gboolean
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static gboolean
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gst_sf_dec_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
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gst_sf_dec_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
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{
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{
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@ -195,7 +319,8 @@ gst_sf_dec_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
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GstFormat format;
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GstFormat format;
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gboolean res = FALSE;
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gboolean res = FALSE;
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GST_DEBUG_OBJECT (self, "query %s", GST_QUERY_TYPE_NAME (query));
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GST_DEBUG_OBJECT (self, "query %s, %" GST_PTR_FORMAT,
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GST_QUERY_TYPE_NAME (query), query);
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switch (GST_QUERY_TYPE (query)) {
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_DURATION:
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case GST_QUERY_DURATION:
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@ -379,7 +504,9 @@ gst_sf_dec_open_file (GstSFDec * self)
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self->channels = info.channels;
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self->channels = info.channels;
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self->rate = info.samplerate;
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self->rate = info.samplerate;
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self->duration = info.frames;
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self->duration = info.frames;
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/* TODO(ensonic): do something with info.seekable? */
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self->seekable = info.seekable;
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GST_DEBUG_OBJECT (self, "stream openend: channels=%d, rate=%d, seekable=%d",
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info.channels, info.samplerate, info.seekable);
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/* negotiate srcpad caps */
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/* negotiate srcpad caps */
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if ((caps = gst_pad_get_allowed_caps (self->srcpad)) == NULL) {
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if ((caps = gst_pad_get_allowed_caps (self->srcpad)) == NULL) {
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@ -51,8 +51,10 @@ struct _GstSFDec {
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GstPad *sinkpad;
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GstPad *sinkpad;
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GstPad *srcpad;
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GstPad *srcpad;
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guint64 pos;
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guint64 pos; /* in bytes */
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guint64 duration;
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guint64 duration; /* in frames */
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gboolean seekable;
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SNDFILE *file;
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SNDFILE *file;
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sf_count_t offset;
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sf_count_t offset;
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