static inline gboolean
gst_ts_shifter_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
gboolean ret = TRUE;
GstTSShifter *ts = GST_TS_SHIFTER (parent);
if (G_UNLIKELY (ts == NULL)) {
gst_event_unref (event);
return FALSE;
}
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
{
GST_CAT_LOG_OBJECT (ts_flow, ts, "received seek event");
/* Do the seek ourself now */
ret = gst_ts_shifter_handle_seek (ts, event);
break;
}
case GST_EVENT_QOS:
{
break;
}
default:
GST_CAT_LOG_OBJECT (ts_flow, ts, "dropped event %s",
GST_EVENT_TYPE_NAME (event));
ret = FALSE;
break;
}
gst_event_unref (event);
return ret;
}
/**
* gst_clock_add_observation:
* @clock: a #GstClock
* @slave: a time on the slave
* @master: a time on the master
* @r_squared: (out): a pointer to hold the result
*
* The time @master of the master clock and the time @slave of the slave
* clock are added to the list of observations. If enough observations
* are available, a linear regression algorithm is run on the
* observations and @clock is recalibrated.
*
* If this functions returns %TRUE, @r_squared will contain the
* correlation coefficient of the interpolation. A value of 1.0
* means a perfect regression was performed. This value can
* be used to control the sampling frequency of the master and slave
* clocks.
*
* Returns: %TRUE if enough observations were added to run the
* regression algorithm.
*
* MT safe.
*/
gboolean
gst_clock_add_observation (GstClock * clock, GstClockTime slave,
GstClockTime master, gdouble * r_squared)
{
GstClockTime m_num, m_denom, b, xbase;
GstClockPrivate *priv;
g_return_val_if_fail (GST_IS_CLOCK (clock), FALSE);
g_return_val_if_fail (r_squared != NULL, FALSE);
priv = clock->priv;
GST_CLOCK_SLAVE_LOCK (clock);
GST_CAT_LOG_OBJECT (GST_CAT_CLOCK, clock,
"adding observation slave %" GST_TIME_FORMAT ", master %" GST_TIME_FORMAT,
GST_TIME_ARGS (slave), GST_TIME_ARGS (master));
priv->times[(4 * priv->time_index)] = slave;
priv->times[(4 * priv->time_index) + 2] = master;
priv->time_index++;
if (G_UNLIKELY (priv->time_index == priv->window_size)) {
priv->filling = FALSE;
priv->time_index = 0;
}
if (G_UNLIKELY (priv->filling && priv->time_index < priv->window_threshold))
goto filling;
if (!do_linear_regression (clock, &m_num, &m_denom, &b, &xbase, r_squared))
goto invalid;
GST_CLOCK_SLAVE_UNLOCK (clock);
GST_CAT_LOG_OBJECT (GST_CAT_CLOCK, clock,
"adjusting clock to m=%" G_GUINT64_FORMAT "/%" G_GUINT64_FORMAT ", b=%"
G_GUINT64_FORMAT " (rsquared=%g)", m_num, m_denom, b, *r_squared);
/* if we have a valid regression, adjust the clock */
gst_clock_set_calibration (clock, xbase, b, m_num, m_denom);
return TRUE;
filling:
{
GST_CLOCK_SLAVE_UNLOCK (clock);
return FALSE;
}
invalid:
{
/* no valid regression has been done, ignore the result then */
GST_CLOCK_SLAVE_UNLOCK (clock);
return TRUE;
}
}
/* called repeadedly with @pad as the source pad. This function should push out
* data to the peer element. */
static void
gst_ts_shifter_loop (GstPad * pad)
{
GstTSShifter *ts;
GstFlowReturn ret;
ts = GST_TS_SHIFTER (GST_PAD_PARENT (pad));
/* have to lock for thread-safety */
FLOW_MUTEX_LOCK_CHECK (ts, ts->srcresult, out_flushing);
if (gst_ts_cache_is_empty (ts->cache) && !ts->is_eos) {
GST_CAT_LOG_OBJECT (ts_flow, ts, "empty, waiting for new data");
do {
/* Wait for data to be available, we could be unlocked because of a flush. */
FLOW_WAIT_ADD_CHECK (ts, ts->srcresult, out_flushing);
}
while (gst_ts_cache_is_empty (ts->cache) && !ts->is_eos);
}
ret = gst_ts_shifter_pop (ts);
ts->srcresult = ret;
if (ret != GST_FLOW_OK)
goto out_flushing;
FLOW_MUTEX_UNLOCK (ts);
return;
/* ERRORS */
out_flushing:
{
gboolean eos = ts->is_eos;
GstFlowReturn ret = ts->srcresult;
gst_pad_pause_task (ts->srcpad);
FLOW_MUTEX_UNLOCK (ts);
GST_CAT_LOG_OBJECT (ts_flow, ts,
"pause task, reason: %s", gst_flow_get_name (ts->srcresult));
/* let app know about us giving up if upstream is not expected to do so */
/* UNEXPECTED is already taken care of elsewhere */
if (eos && (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_EOS)) {
GST_ELEMENT_ERROR (ts, STREAM, FAILED,
("Internal data flow error."),
("streaming task paused, reason %s (%d)",
gst_flow_get_name (ret), ret));
GST_CAT_LOG_OBJECT (ts_flow, ts, "pushing EOS");
gst_pad_push_event (ts->srcpad, gst_event_new_eos ());
}
return;
}
}
/* copy data into @dest, skipping @skip bytes from the head buffers */
static void
copy_into_unchecked (GstAdapter * adapter, guint8 * dest, gsize skip,
gsize size)
{
GSList *g;
GstBuffer *buf;
gsize bsize, csize;
/* first step, do skipping */
/* we might well be copying where we were scanning */
if (adapter->scan_entry && (adapter->scan_offset <= skip)) {
g = adapter->scan_entry;
skip -= adapter->scan_offset;
} else {
g = adapter->buflist;
}
buf = g->data;
bsize = gst_buffer_get_size (buf);
while (G_UNLIKELY (skip >= bsize)) {
skip -= bsize;
g = g_slist_next (g);
buf = g->data;
bsize = gst_buffer_get_size (buf);
}
/* copy partial buffer */
csize = MIN (bsize - skip, size);
GST_DEBUG ("bsize %" G_GSIZE_FORMAT ", skip %" G_GSIZE_FORMAT ", csize %"
G_GSIZE_FORMAT, bsize, skip, csize);
GST_CAT_LOG_OBJECT (GST_CAT_PERFORMANCE, adapter, "extract %" G_GSIZE_FORMAT
" bytes", csize);
gst_buffer_extract (buf, skip, dest, csize);
size -= csize;
dest += csize;
/* second step, copy remainder */
while (size > 0) {
g = g_slist_next (g);
buf = g->data;
bsize = gst_buffer_get_size (buf);
if (G_LIKELY (bsize > 0)) {
csize = MIN (bsize, size);
GST_CAT_LOG_OBJECT (GST_CAT_PERFORMANCE, adapter,
"extract %" G_GSIZE_FORMAT " bytes", csize);
gst_buffer_extract (buf, 0, dest, csize);
size -= csize;
dest += csize;
}
}
}
static int
spotify_cb_music_delivery (sp_session *spotify_session, const sp_audioformat *format,const void *frames, int num_frames)
{
GstBuffer *buffer;
guint sample_rate = format->sample_rate;
guint channels = format->channels;
guint bufsize = num_frames * sizeof (int16_t) * channels;
guint availible;
GST_CAT_DEBUG_OBJECT (gst_spot_src_debug_cb, ugly_spot, "Music_delivery callback");
GST_SPOT_SRC_FORMAT (ugly_spot)->sample_rate = sample_rate;
GST_SPOT_SRC_FORMAT (ugly_spot)->channels = channels;
GST_SPOT_SRC_FORMAT (ugly_spot)->sample_type = format->sample_type;
GST_CAT_LOG_OBJECT (gst_spot_src_debug_audio, ugly_spot, "Start %p with %d frames with size=%d", frames, num_frames, bufsize);
if (num_frames == 0) {
/* we have a seek */
return 0;
}
buffer = gst_buffer_new_and_alloc (bufsize);
memcpy (GST_BUFFER_DATA (buffer), (guint8*)frames, bufsize);
g_mutex_lock (GST_SPOT_SRC_ADAPTER_MUTEX (ugly_spot));
availible = gst_adapter_available (GST_SPOT_SRC_ADAPTER (ugly_spot));
GST_CAT_LOG_OBJECT (gst_spot_src_debug_audio, ugly_spot, "Availiable before push = %d", availible);
/* see if we have buffertime of audio */
if (availible >= (GST_SPOT_SRC_BUFFER_TIME (ugly_spot)/1000000) * sample_rate * 4) {
GST_CAT_LOG_OBJECT (gst_spot_src_debug_audio, ugly_spot, "Return 0, adapter is full = %d", availible);
gst_buffer_unref (buffer);
/* data is available broadcast read thread */
g_cond_broadcast (GST_SPOT_SRC_ADAPTER_COND (ugly_spot));
g_mutex_unlock (GST_SPOT_SRC_ADAPTER_MUTEX (ugly_spot));
return 0;
}
gst_adapter_push (GST_SPOT_SRC_ADAPTER (ugly_spot), buffer);
availible = gst_adapter_available (GST_SPOT_SRC_ADAPTER (ugly_spot));
GST_CAT_LOG_OBJECT (gst_spot_src_debug_audio, ugly_spot, "Availiable after push = %d", availible);
/* data is available broadcast read thread */
g_cond_broadcast (GST_SPOT_SRC_ADAPTER_COND (ugly_spot));
g_mutex_unlock (GST_SPOT_SRC_ADAPTER_MUTEX (ugly_spot));
GST_CAT_LOG_OBJECT (gst_spot_src_debug_audio, ugly_spot, "Return num_frames=%d", num_frames);
return num_frames;
}
static gboolean
gst_spot_src_get_size (GstBaseSrc * basesrc, guint64 * size)
{
GstSpotSrc *spot;
guint64 duration = 0;
spot = GST_SPOT_SRC (basesrc);
/* duration in ms */
duration = run_spot_cmd (spot, SPOT_CMD_DURATION, 0);
/* duration in ns */
duration = 1000000 * duration;
if (!duration) {
GST_CAT_ERROR_OBJECT (gst_spot_src_debug_audio, spot, "No duration error");
goto no_duration;
}
*size = (duration/1000000000) * 44100 * 4;
GST_CAT_LOG_OBJECT (gst_spot_src_debug_audio, spot, "Duration=%" G_GUINT64_FORMAT " => size=%" G_GUINT64_FORMAT, duration, *size);
return TRUE;
no_duration:
return FALSE;
}
/* Changing a GObject property of a GstObject will result in "deep_notify"
* signals being emitted by the object itself, as well as in each parent
* object. This is so that an application can connect a listener to the
* top-level bin to catch property-change notifications for all contained
* elements.
*
* This function is not MT safe in glib < 2.8 so we need to lock it with a
* classwide mutex in that case.
*
* MT safe.
*/
static void
gst_object_dispatch_properties_changed (GObject * object,
guint n_pspecs, GParamSpec ** pspecs)
{
GstObject *gst_object, *parent, *old_parent;
guint i;
gchar *name, *debug_name;
/* do the standard dispatching */
parent_class->dispatch_properties_changed (object, n_pspecs, pspecs);
gst_object = GST_OBJECT_CAST (object);
name = gst_object_get_name (gst_object);
debug_name = GST_STR_NULL (name);
/* now let the parent dispatch those, too */
parent = gst_object_get_parent (gst_object);
while (parent) {
for (i = 0; i < n_pspecs; i++) {
GST_CAT_LOG_OBJECT (GST_CAT_PROPERTIES, parent,
"deep notification from %s (%s)", debug_name, pspecs[i]->name);
g_signal_emit (parent, gst_object_signals[DEEP_NOTIFY],
g_quark_from_string (pspecs[i]->name), gst_object, pspecs[i]);
}
old_parent = parent;
parent = gst_object_get_parent (old_parent);
gst_object_unref (old_parent);
}
g_free (name);
}
/* dispose is called when the object has to release all links
* to other objects */
static void
gst_object_dispose (GObject * object)
{
GstObject *parent;
GST_CAT_LOG_OBJECT (GST_CAT_REFCOUNTING, object, "dispose");
GST_OBJECT_LOCK (object);
if ((parent = GST_OBJECT_PARENT (object)))
goto have_parent;
GST_OBJECT_PARENT (object) = NULL;
GST_OBJECT_UNLOCK (object);
parent_class->dispose (object);
return;
/* ERRORS */
have_parent:
{
g_critical ("\nTrying to dispose object \"%s\", but it still has a "
"parent \"%s\".\nYou need to let the parent manage the "
"object instead of unreffing the object directly.\n",
GST_OBJECT_NAME (object), GST_OBJECT_NAME (parent));
GST_OBJECT_UNLOCK (object);
/* ref the object again to revive it in this error case */
object = gst_object_ref (object);
return;
}
}
static void
spotify_cb_notify_main_thread (sp_session *spotify_session)
{
GST_CAT_LOG_OBJECT (gst_spot_src_debug_cb, ugly_spot, "Notify_main_thread callback");
GST_CAT_DEBUG_OBJECT (gst_spot_src_debug_threads, ugly_spot, "Broadcast process_events_cond");
g_cond_broadcast (ugly_spot->process_events_cond);
}
EXPORT_C
#endif
void
gst_object_unparent (GstObject * object)
{
GstObject *parent;
g_return_if_fail (GST_IS_OBJECT (object));
GST_OBJECT_LOCK (object);
parent = object->parent;
if (G_LIKELY (parent != NULL)) {
GST_CAT_LOG_OBJECT (GST_CAT_REFCOUNTING, object, "unparent");
object->parent = NULL;
GST_OBJECT_UNLOCK (object);
g_signal_emit (object, gst_object_signals[PARENT_UNSET], 0, parent);
gst_object_unref (object);
} else {
GST_OBJECT_UNLOCK (object);
}
}
/**
* gst_object_sink:
* @object: a #GstObject to sink
*
* If @object was floating, the #GST_OBJECT_FLOATING flag is removed
* and @object is unreffed. When @object was not floating,
* this function does nothing.
*
* Any newly created object has a refcount of 1 and is floating.
* This function should be used when creating a new object to
* symbolically 'take ownership' of @object. This done by first doing a
* gst_object_ref() to keep a reference to @object and then gst_object_sink()
* to remove and unref any floating references to @object.
* Use gst_object_set_parent() to have this done for you.
*
* MT safe. This function grabs and releases @object lock.
*/
void
gst_object_sink (gpointer object)
{
g_return_if_fail (GST_IS_OBJECT (object));
GST_CAT_LOG_OBJECT (GST_CAT_REFCOUNTING, object, "sink");
GST_OBJECT_LOCK (object);
if (G_LIKELY (GST_OBJECT_IS_FLOATING (object))) {
GST_CAT_LOG_OBJECT (GST_CAT_REFCOUNTING, object, "clear floating flag");
GST_OBJECT_FLAG_UNSET (object, GST_OBJECT_FLOATING);
GST_OBJECT_UNLOCK (object);
gst_object_unref (object);
} else {
GST_OBJECT_UNLOCK (object);
}
}
static GstFlowReturn
gst_mpeg2dec_crop_buffer (GstMpeg2dec * dec, GstVideoCodecFrame * in_frame,
GstVideoFrame * input_vframe)
{
GstVideoCodecState *state;
GstVideoInfo *info;
GstVideoInfo *dinfo;
GstVideoFrame output_frame;
GstFlowReturn ret;
GstBuffer *buffer = NULL;
state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (dec));
info = &state->info;
dinfo = &dec->decoded_info;
GST_CAT_LOG_OBJECT (GST_CAT_PERFORMANCE, dec,
"Copying input buffer %ux%u (%" G_GSIZE_FORMAT ") to output buffer "
"%ux%u (%" G_GSIZE_FORMAT ")", dinfo->width, dinfo->height,
dinfo->size, info->width, info->height, info->size);
ret = gst_buffer_pool_acquire_buffer (dec->downstream_pool, &buffer, NULL);
if (ret != GST_FLOW_OK)
goto beach;
if (!gst_video_frame_map (&output_frame, info, buffer, GST_MAP_WRITE))
goto map_fail;
if (in_frame->output_buffer)
gst_buffer_unref (in_frame->output_buffer);
in_frame->output_buffer = buffer;
if (!gst_video_frame_copy (&output_frame, input_vframe))
goto copy_failed;
gst_video_frame_unmap (&output_frame);
GST_BUFFER_FLAGS (in_frame->output_buffer) =
GST_BUFFER_FLAGS (input_vframe->buffer);
beach:
gst_video_codec_state_unref (state);
return ret;
map_fail:
{
GST_ERROR_OBJECT (dec, "Failed to map output frame");
gst_video_codec_state_unref (state);
return GST_FLOW_ERROR;
}
copy_failed:
{
GST_ERROR_OBJECT (dec, "Failed to copy output frame");
gst_video_codec_state_unref (state);
return GST_FLOW_ERROR;
}
}
static GstFlowReturn
gst_dshowvideodec_chain (GstPad * pad, GstBuffer * buffer)
{
GstDshowVideoDec *vdec = (GstDshowVideoDec *) gst_pad_get_parent (pad);
bool discont = FALSE;
GstClockTime stop;
if (!vdec->setup) {
/* we are not setup */
GST_WARNING_OBJECT (vdec, "Decoder not set up, failing");
vdec->last_ret = GST_FLOW_FLUSHING;
goto beach;
}
if (GST_FLOW_IS_FATAL (vdec->last_ret)) {
GST_DEBUG_OBJECT (vdec, "last decoding iteration generated a fatal error "
"%s", gst_flow_get_name (vdec->last_ret));
goto beach;
}
/* check if duration is valid and use duration only when it's valid
/* because dshow is not decoding frames having stop smaller than start */
if (GST_BUFFER_DURATION_IS_VALID (buffer)) {
stop = GST_BUFFER_TIMESTAMP (buffer) + GST_BUFFER_DURATION (buffer);
} else {
stop = GST_BUFFER_TIMESTAMP (buffer);
}
GST_CAT_LOG_OBJECT (dshowvideodec_debug, vdec,
"chain (size %d)=> pts %" GST_TIME_FORMAT " stop %" GST_TIME_FORMAT,
GST_BUFFER_SIZE (buffer), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)),
GST_TIME_ARGS (stop));
/* if the incoming buffer has discont flag set => flush decoder data */
if (buffer && GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT)) {
GST_CAT_DEBUG_OBJECT (dshowvideodec_debug, vdec,
"this buffer has a DISCONT flag (%" GST_TIME_FORMAT "), flushing",
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
gst_dshowvideodec_flush (vdec);
discont = TRUE;
}
/* push the buffer to the directshow decoder */
vdec->fakesrc->GetOutputPin()->PushBuffer(
GST_BUFFER_DATA (buffer), GST_BUFFER_TIMESTAMP (buffer), stop,
GST_BUFFER_SIZE (buffer), discont);
beach:
gst_buffer_unref (buffer);
gst_object_unref (vdec);
return vdec->last_ret;
}
static GstFlowReturn
gst_v4l2_buffer_pool_copy_buffer (GstV4l2BufferPool * pool, GstBuffer * dest,
GstBuffer * src)
{
const GstVideoFormatInfo *finfo = pool->caps_info.finfo;
GST_LOG_OBJECT (pool, "copying buffer");
if (finfo && (finfo->format != GST_VIDEO_FORMAT_UNKNOWN &&
finfo->format != GST_VIDEO_FORMAT_ENCODED)) {
GstVideoFrame src_frame, dest_frame;
GST_DEBUG_OBJECT (pool, "copy video frame");
/* we have raw video, use videoframe copy to get strides right */
if (!gst_video_frame_map (&src_frame, &pool->caps_info, src, GST_MAP_READ))
goto invalid_buffer;
if (!gst_video_frame_map (&dest_frame, &pool->caps_info, dest,
GST_MAP_WRITE)) {
gst_video_frame_unmap (&src_frame);
goto invalid_buffer;
}
gst_video_frame_copy (&dest_frame, &src_frame);
gst_video_frame_unmap (&src_frame);
gst_video_frame_unmap (&dest_frame);
} else {
GstMapInfo map;
GST_DEBUG_OBJECT (pool, "copy raw bytes");
if (!gst_buffer_map (src, &map, GST_MAP_READ))
goto invalid_buffer;
gst_buffer_fill (dest, 0, map.data, gst_buffer_get_size (src));
gst_buffer_unmap (src, &map);
gst_buffer_resize (dest, 0, gst_buffer_get_size (src));
}
GST_CAT_LOG_OBJECT (GST_CAT_PERFORMANCE, pool, "slow copy into buffer %p",
dest);
return GST_FLOW_OK;
invalid_buffer:
{
GST_ERROR_OBJECT (pool, "could not map buffer");
return GST_FLOW_ERROR;
}
}
/**
* gst_object_unref:
* @object: a #GstObject to unreference
*
* Decrements the reference count on @object. If reference count hits
* zero, destroy @object. This function does not take the lock
* on @object as it relies on atomic refcounting.
*
* The unref method should never be called with the LOCK held since
* this might deadlock the dispose function.
*/
void
gst_object_unref (gpointer object)
{
g_return_if_fail (object != NULL);
g_return_if_fail (((GObject *) object)->ref_count > 0);
#ifdef DEBUG_REFCOUNT
GST_CAT_LOG_OBJECT (GST_CAT_REFCOUNTING, object, "%p unref %d->%d",
object,
((GObject *) object)->ref_count, ((GObject *) object)->ref_count - 1);
#endif
g_object_unref (object);
}
/**
* gst_object_ref:
* @object: a #GstObject to reference
*
* Increments the reference count on @object. This function
* does not take the lock on @object because it relies on
* atomic refcounting.
*
* This object returns the input parameter to ease writing
* constructs like :
* result = gst_object_ref (object->parent);
*
* Returns: A pointer to @object
*/
gpointer
gst_object_ref (gpointer object)
{
g_return_val_if_fail (object != NULL, NULL);
#ifdef DEBUG_REFCOUNT
GST_CAT_LOG_OBJECT (GST_CAT_REFCOUNTING, object, "%p ref %d->%d",
object,
((GObject *) object)->ref_count, ((GObject *) object)->ref_count + 1);
#endif
g_object_ref (object);
return object;
}
static void
gst_object_init (GstObject * object)
{
object->lock = g_mutex_new ();
object->parent = NULL;
object->name = NULL;
GST_CAT_LOG_OBJECT (GST_CAT_REFCOUNTING, object, "%p new", object);
#ifndef GST_DISABLE_TRACE
gst_alloc_trace_new (_gst_object_trace, object);
#endif
object->flags = 0;
GST_OBJECT_FLAG_SET (object, GST_OBJECT_FLOATING);
}
static OMX_ERRORTYPE
FillBufferDone (OMX_HANDLETYPE omx_handle,
OMX_PTR app_data,
OMX_BUFFERHEADERTYPE *omx_buffer)
{
GOmxCore *core;
GOmxPort *port;
core = (GOmxCore *) app_data;
port = get_port (core, omx_buffer->nOutputPortIndex);
GST_CAT_LOG_OBJECT (gstomx_util_debug, core->object, "omx_buffer=%p", omx_buffer);
got_buffer (core, port, omx_buffer);
return OMX_ErrorNone;
}
/* finalize is called when the object has to free its resources */
static void
gst_object_finalize (GObject * object)
{
GstObject *gstobject = GST_OBJECT (object);
GST_CAT_LOG_OBJECT (GST_CAT_REFCOUNTING, object, "finalize");
g_signal_handlers_destroy (object);
g_free (gstobject->name);
g_mutex_free (gstobject->lock);
#ifndef GST_DISABLE_TRACE
gst_alloc_trace_free (_gst_object_trace, object);
#endif
parent_class->finalize (object);
}
/* Changing a GObject property of a GstObject will result in "deep-notify"
* signals being emitted by the object itself, as well as in each parent
* object. This is so that an application can connect a listener to the
* top-level bin to catch property-change notifications for all contained
* elements.
*
* MT safe.
*/
static void
gst_object_dispatch_properties_changed (GObject * object,
guint n_pspecs, GParamSpec ** pspecs)
{
GstObject *gst_object, *parent, *old_parent;
guint i;
#ifndef GST_DISABLE_GST_DEBUG
gchar *name = NULL;
const gchar *debug_name;
#endif
/* do the standard dispatching */
((GObjectClass *)
gst_object_parent_class)->dispatch_properties_changed (object, n_pspecs,
pspecs);
gst_object = GST_OBJECT_CAST (object);
#ifndef GST_DISABLE_GST_DEBUG
if (G_UNLIKELY (_gst_debug_min >= GST_LEVEL_LOG)) {
name = gst_object_get_name (gst_object);
debug_name = GST_STR_NULL (name);
} else
debug_name = "";
#endif
/* now let the parent dispatch those, too */
parent = gst_object_get_parent (gst_object);
while (parent) {
for (i = 0; i < n_pspecs; i++) {
GST_CAT_LOG_OBJECT (GST_CAT_PROPERTIES, parent,
"deep notification from %s (%s)", debug_name, pspecs[i]->name);
g_signal_emit (parent, gst_object_signals[DEEP_NOTIFY],
g_quark_from_string (pspecs[i]->name), gst_object, pspecs[i]);
}
old_parent = parent;
parent = gst_object_get_parent (old_parent);
gst_object_unref (old_parent);
}
#ifndef GST_DISABLE_GST_DEBUG
g_free (name);
#endif
}
EXPORT_C
#endif
gboolean
gst_object_set_parent (GstObject * object, GstObject * parent)
{
g_return_val_if_fail (GST_IS_OBJECT (object), FALSE);
g_return_val_if_fail (GST_IS_OBJECT (parent), FALSE);
g_return_val_if_fail (object != parent, FALSE);
GST_CAT_DEBUG_OBJECT (GST_CAT_REFCOUNTING, object,
"set parent (ref and sink)");
GST_OBJECT_LOCK (object);
if (G_UNLIKELY (object->parent != NULL))
goto had_parent;
/* sink object, we don't call our own function because we don't
* need to release/acquire the lock needlessly or touch the refcount
* in the floating case. */
object->parent = parent;
if (G_LIKELY (GST_OBJECT_IS_FLOATING (object))) {
GST_CAT_LOG_OBJECT (GST_CAT_REFCOUNTING, object, "unsetting floating flag");
GST_OBJECT_FLAG_UNSET (object, GST_OBJECT_FLOATING);
GST_OBJECT_UNLOCK (object);
} else {
GST_OBJECT_UNLOCK (object);
gst_object_ref (object);
}
g_signal_emit (object, gst_object_signals[PARENT_SET], 0, parent);
return TRUE;
/* ERROR handling */
had_parent:
{
GST_CAT_DEBUG_OBJECT (GST_CAT_REFCOUNTING, object,
"set parent failed, object already had a parent");
GST_OBJECT_UNLOCK (object);
return FALSE;
}
}
/* internal function, nbytes should be flushed after calling this function */
static guint8 *
gst_adapter_take_internal (GstAdapter * adapter, gsize nbytes)
{
guint8 *data;
gsize toreuse, tocopy;
/* see how much data we can reuse from the assembled memory and how much
* we need to copy */
toreuse = MIN (nbytes, adapter->assembled_len);
tocopy = nbytes - toreuse;
/* find memory to return */
if (adapter->assembled_size >= nbytes && toreuse > 0) {
/* we reuse already allocated memory but only when we're going to reuse
* something from it because else we are worse than the malloc and copy
* case below */
GST_LOG_OBJECT (adapter, "reusing %" G_GSIZE_FORMAT " bytes of assembled"
" data", toreuse);
/* we have enough free space in the assembled array */
data = adapter->assembled_data;
/* flush after this function should set the assembled_size to 0 */
adapter->assembled_data = g_malloc (adapter->assembled_size);
} else {
GST_LOG_OBJECT (adapter, "allocating %" G_GSIZE_FORMAT " bytes", nbytes);
/* not enough bytes in the assembled array, just allocate new space */
data = g_malloc (nbytes);
/* reuse what we can from the already assembled data */
if (toreuse) {
GST_LOG_OBJECT (adapter, "reusing %" G_GSIZE_FORMAT " bytes", toreuse);
GST_CAT_LOG_OBJECT (GST_CAT_PERFORMANCE, adapter,
"memcpy %" G_GSIZE_FORMAT " bytes", toreuse);
memcpy (data, adapter->assembled_data, toreuse);
}
}
if (tocopy) {
/* copy the remaining data */
copy_into_unchecked (adapter, toreuse + data, toreuse + adapter->skip,
tocopy);
}
return data;
}
static GstFlowReturn
gst_ts_shifter_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
GstTSShifter *ts = GST_TS_SHIFTER (parent);
GstFlowReturn res;
GstMapInfo map;
GST_CAT_LOG_OBJECT (ts_flow, ts,
"received buffer %p of size %d, time %" GST_TIME_FORMAT ", duration %"
GST_TIME_FORMAT, buffer, gst_buffer_get_size (buffer),
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)),
GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)));
gst_buffer_map (buffer, &map, GST_MAP_READ);
res = gst_ts_shifter_push (ts, map.data, map.size);
gst_buffer_unmap (buffer, &map);
gst_buffer_unref (buffer);
return res;
}
/******************************************************
* gst_v4l2src_grab_frame ():
* grab a frame for capturing
* return value: GST_FLOW_OK, GST_FLOW_WRONG_STATE or GST_FLOW_ERROR
******************************************************/
GstFlowReturn
gst_v4l2src_grab_frame (GstV4l2Src * v4l2src, GstBuffer ** buf)
{
#define NUM_TRIALS 50
GstV4l2Object *v4l2object;
GstV4l2BufferPool *pool;
gint32 trials = NUM_TRIALS;
GstBuffer *pool_buffer;
gboolean need_copy;
gint ret;
v4l2object = v4l2src->v4l2object;
pool = v4l2src->pool;
if (!pool)
goto no_buffer_pool;
GST_DEBUG_OBJECT (v4l2src, "grab frame");
for (;;) {
if (v4l2object->can_poll_device) {
ret = gst_poll_wait (v4l2object->poll, GST_CLOCK_TIME_NONE);
if (G_UNLIKELY (ret < 0)) {
if (errno == EBUSY)
goto stopped;
if (errno == ENXIO) {
GST_DEBUG_OBJECT (v4l2src,
"v4l2 device doesn't support polling. Disabling");
v4l2object->can_poll_device = FALSE;
} else {
if (errno != EAGAIN && errno != EINTR)
goto select_error;
}
}
}
pool_buffer = GST_BUFFER (gst_v4l2_buffer_pool_dqbuf (pool));
if (pool_buffer)
break;
GST_WARNING_OBJECT (pool->v4l2elem, "trials=%d", trials);
/* if the sync() got interrupted, we can retry */
switch (errno) {
case EINVAL:
case ENOMEM:
/* fatal */
return GST_FLOW_ERROR;
case EAGAIN:
case EIO:
case EINTR:
default:
/* try again, until too many trials */
break;
}
/* check nr. of attempts to capture */
if (--trials == -1) {
goto too_many_trials;
}
}
/* if we are handing out the last buffer in the pool, we need to make a
* copy and bring the buffer back in the pool. */
need_copy = v4l2src->always_copy
|| !gst_v4l2_buffer_pool_available_buffers (pool);
if (G_UNLIKELY (need_copy)) {
if (!v4l2src->always_copy) {
GST_CAT_LOG_OBJECT (GST_CAT_PERFORMANCE, v4l2src,
"running out of buffers, making a copy to reuse current one");
}
*buf = gst_buffer_copy (pool_buffer);
GST_BUFFER_FLAG_UNSET (*buf, GST_BUFFER_FLAG_READONLY);
/* this will requeue */
gst_buffer_unref (pool_buffer);
} else {
*buf = pool_buffer;
}
/* we set the buffer metadata in gst_v4l2src_create() */
return GST_FLOW_OK;
/* ERRORS */
no_buffer_pool:
{
GST_DEBUG ("no buffer pool");
return GST_FLOW_WRONG_STATE;
}
select_error:
{
GST_ELEMENT_ERROR (pool->v4l2elem, RESOURCE, READ, (NULL),
("select error %d: %s (%d)", ret, g_strerror (errno), errno));
return GST_FLOW_ERROR;
}
stopped:
{
GST_DEBUG ("stop called");
return GST_FLOW_WRONG_STATE;
}
too_many_trials:
{
GST_ELEMENT_ERROR (pool->v4l2elem, RESOURCE, FAILED,
(_("Failed trying to get video frames from device '%s'."),
v4l2object->videodev),
(_("Failed after %d tries. device %s. system error: %s"),
NUM_TRIALS, v4l2object->videodev, g_strerror (errno)));
return GST_FLOW_ERROR;
}
}
static GstFlowReturn
gst_mpeg2dec_crop_buffer (GstMpeg2dec * dec, GstVideoCodecFrame * in_frame,
GstVideoFrame * input_vframe)
{
GstVideoCodecState *state;
GstVideoInfo *info;
GstVideoInfo *dinfo;
guint c, n_planes;
GstVideoFrame output_frame;
GstFlowReturn ret;
state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (dec));
info = &state->info;
dinfo = &dec->decoded_info;
GST_CAT_LOG_OBJECT (GST_CAT_PERFORMANCE, dec,
"Copying input buffer %ux%u (%" G_GSIZE_FORMAT ") to output buffer "
"%ux%u (%" G_GSIZE_FORMAT ")", dinfo->width, dinfo->height,
dinfo->size, info->width, info->height, info->size);
ret =
gst_video_decoder_allocate_output_frame (GST_VIDEO_DECODER (dec),
in_frame);
if (ret != GST_FLOW_OK)
goto beach;
if (!gst_video_frame_map (&output_frame, info, in_frame->output_buffer,
GST_MAP_WRITE))
goto map_fail;
n_planes = GST_VIDEO_FRAME_N_PLANES (&output_frame);
for (c = 0; c < n_planes; c++) {
guint w, h, j;
guint8 *sp, *dp;
gint ss, ds;
sp = GST_VIDEO_FRAME_PLANE_DATA (input_vframe, c);
dp = GST_VIDEO_FRAME_PLANE_DATA (&output_frame, c);
ss = GST_VIDEO_FRAME_PLANE_STRIDE (input_vframe, c);
ds = GST_VIDEO_FRAME_PLANE_STRIDE (&output_frame, c);
w = MIN (ABS (ss), ABS (ds));
h = GST_VIDEO_FRAME_COMP_HEIGHT (&output_frame, c);
GST_CAT_DEBUG (GST_CAT_PERFORMANCE, "copy plane %u, w:%u h:%u ", c, w, h);
for (j = 0; j < h; j++) {
memcpy (dp, sp, w);
dp += ds;
sp += ss;
}
}
gst_video_frame_unmap (&output_frame);
GST_BUFFER_FLAGS (in_frame->output_buffer) =
GST_BUFFER_FLAGS (input_vframe->buffer);
beach:
gst_video_codec_state_unref (state);
return ret;
map_fail:
{
GST_ERROR_OBJECT (dec, "Failed to map output frame");
gst_video_codec_state_unref (state);
return GST_FLOW_ERROR;
}
}
gint
main (gint argc, gchar * argv[])
{
gst_init (&argc, &argv);
GST_DEBUG_CATEGORY_INIT (cat_default, "GST_Check_default", 0,
"default category for this test");
GST_DEBUG_CATEGORY_INIT (cat2, "GST_Check_2", 0,
"second category for this test");
#ifndef GST_DISABLE_GST_DEBUG
g_assert (gst_debug_remove_log_function (gst_debug_log_default) == 1);
#endif
gst_debug_add_log_function (check_message, NULL);
count = 0;
GST_ERROR ("This is an error.");
++count;
GST_WARNING ("This is a warning.");
++count;
GST_INFO ("This is an info message.");
++count;
GST_DEBUG ("This is a debug message.");
++count;
GST_LOG ("This is a log message.");
++count;
GST_CAT_ERROR (cat2, "This is an error with category.");
++count;
GST_CAT_WARNING (cat2, "This is a warning with category.");
++count;
GST_CAT_INFO (cat2, "This is an info message with category.");
++count;
GST_CAT_DEBUG (cat2, "This is a debug message with category.");
++count;
GST_CAT_LOG (cat2, "This is a log message with category.");
count = -1;
pipeline = gst_element_factory_make ("pipeline", "testelement");
count = 10;
GST_ERROR_OBJECT (pipeline, "This is an error with object.");
++count;
GST_WARNING_OBJECT (pipeline, "This is a warning with object.");
++count;
GST_INFO_OBJECT (pipeline, "This is an info message with object.");
++count;
GST_DEBUG_OBJECT (pipeline, "This is a debug message with object.");
++count;
GST_LOG_OBJECT (pipeline, "This is a log message with object.");
++count;
GST_CAT_ERROR_OBJECT (cat2, pipeline,
"This is an error with category and object.");
++count;
GST_CAT_WARNING_OBJECT (cat2, pipeline,
"This is a warning with category and object.");
++count;
GST_CAT_INFO_OBJECT (cat2, pipeline,
"This is an info message with category and object.");
++count;
GST_CAT_DEBUG_OBJECT (cat2, pipeline,
"This is a debug message with category and object.");
++count;
GST_CAT_LOG_OBJECT (cat2, pipeline,
"This is a log message with category and object.");
count = -1;
#ifndef GST_DISABLE_GST_DEBUG
g_assert (gst_debug_remove_log_function (check_message) == 1);
#endif
return 0;
}
/**
* gst_clock_add_observation_unapplied:
* @clock: a #GstClock
* @slave: a time on the slave
* @master: a time on the master
* @r_squared: (out): a pointer to hold the result
* @internal: (out) (allow-none): a location to store the internal time
* @external: (out) (allow-none): a location to store the external time
* @rate_num: (out) (allow-none): a location to store the rate numerator
* @rate_denom: (out) (allow-none): a location to store the rate denominator
*
* Add a clock observation to the internal slaving algorithm the same as
* gst_clock_add_observation(), and return the result of the master clock
* estimation, without updating the internal calibration.
*
* The caller can then take the results and call gst_clock_set_calibration()
* with the values, or some modified version of them.
*
* Since: 1.6
*/
gboolean
gst_clock_add_observation_unapplied (GstClock * clock, GstClockTime slave,
GstClockTime master, gdouble * r_squared,
GstClockTime * internal, GstClockTime * external,
GstClockTime * rate_num, GstClockTime * rate_denom)
{
GstClockTime m_num, m_denom, b, xbase;
GstClockPrivate *priv;
guint n;
g_return_val_if_fail (GST_IS_CLOCK (clock), FALSE);
g_return_val_if_fail (r_squared != NULL, FALSE);
priv = clock->priv;
GST_CLOCK_SLAVE_LOCK (clock);
GST_CAT_LOG_OBJECT (GST_CAT_CLOCK, clock,
"adding observation slave %" GST_TIME_FORMAT ", master %" GST_TIME_FORMAT,
GST_TIME_ARGS (slave), GST_TIME_ARGS (master));
priv->times[(4 * priv->time_index)] = slave;
priv->times[(4 * priv->time_index) + 2] = master;
priv->time_index++;
if (G_UNLIKELY (priv->time_index == priv->window_size)) {
priv->filling = FALSE;
priv->time_index = 0;
}
if (G_UNLIKELY (priv->filling && priv->time_index < priv->window_threshold))
goto filling;
n = priv->filling ? priv->time_index : priv->window_size;
if (!_priv_gst_do_linear_regression (priv->times, n, &m_num, &m_denom, &b,
&xbase, r_squared))
goto invalid;
GST_CLOCK_SLAVE_UNLOCK (clock);
GST_CAT_LOG_OBJECT (GST_CAT_CLOCK, clock,
"adjusting clock to m=%" G_GUINT64_FORMAT "/%" G_GUINT64_FORMAT ", b=%"
G_GUINT64_FORMAT " (rsquared=%g)", m_num, m_denom, b, *r_squared);
if (internal)
*internal = xbase;
if (external)
*external = b;
if (rate_num)
*rate_num = m_num;
if (rate_denom)
*rate_denom = m_denom;
return TRUE;
filling:
{
GST_CLOCK_SLAVE_UNLOCK (clock);
return FALSE;
}
invalid:
{
/* no valid regression has been done, ignore the result then */
GST_CLOCK_SLAVE_UNLOCK (clock);
return TRUE;
}
}
static GstCaps *
gst_waveform_sink_getcaps (GstBaseSink * bsink)
{
GstWaveFormSink *wfsink = GST_WAVEFORM_SINK (bsink);
MMRESULT mmresult;
WAVEOUTCAPS wocaps;
GstCaps *caps, *caps_temp;
/* return the cached caps if already defined */
if (wfsink->cached_caps) {
return gst_caps_ref (wfsink->cached_caps);
}
/* get the default device caps */
mmresult = waveOutGetDevCaps (WAVE_MAPPER, &wocaps, sizeof (wocaps));
if (mmresult != MMSYSERR_NOERROR) {
waveOutGetErrorText (mmresult, wfsink->error_string, ERROR_LENGTH - 1);
GST_ELEMENT_ERROR (wfsink, RESOURCE, SETTINGS,
("gst_waveform_sink_getcaps: waveOutGetDevCaps failed error=>%s",
wfsink->error_string), (NULL));
return NULL;
}
caps = gst_caps_new_empty ();
/* create a caps for all wave formats supported by the device
starting by the best quality format */
if (wocaps.dwFormats & WAVE_FORMAT_96S16) {
caps_temp = gst_waveform_sink_create_caps (96000, 2, 16);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_96S08) {
caps_temp = gst_waveform_sink_create_caps (96000, 2, 8);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_96M16) {
caps_temp = gst_waveform_sink_create_caps (96000, 1, 16);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_96M08) {
caps_temp = gst_waveform_sink_create_caps (96000, 1, 8);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_4S16) {
caps_temp = gst_waveform_sink_create_caps (44100, 2, 16);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_4S08) {
caps_temp = gst_waveform_sink_create_caps (44100, 2, 8);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_4M16) {
caps_temp = gst_waveform_sink_create_caps (44100, 1, 16);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_4M08) {
caps_temp = gst_waveform_sink_create_caps (44100, 1, 8);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_2S16) {
caps_temp = gst_waveform_sink_create_caps (22050, 2, 16);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_2S08) {
caps_temp = gst_waveform_sink_create_caps (22050, 2, 8);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_2M16) {
caps_temp = gst_waveform_sink_create_caps (22050, 1, 16);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_2M08) {
caps_temp = gst_waveform_sink_create_caps (22050, 1, 8);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_1S16) {
caps_temp = gst_waveform_sink_create_caps (11025, 2, 16);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_1S08) {
caps_temp = gst_waveform_sink_create_caps (11025, 2, 8);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_1M16) {
caps_temp = gst_waveform_sink_create_caps (11025, 1, 16);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (wocaps.dwFormats & WAVE_FORMAT_1M08) {
caps_temp = gst_waveform_sink_create_caps (11025, 1, 8);
if (caps_temp) {
gst_caps_append (caps, caps_temp);
}
}
if (gst_caps_is_empty (caps)) {
gst_caps_unref (caps);
caps = NULL;
} else {
wfsink->cached_caps = gst_caps_ref (caps);
}
GST_CAT_LOG_OBJECT (waveformsink_debug, wfsink, "Returning caps %s",
gst_caps_to_string (caps));
return caps;
}
static gboolean
gst_dshowvideodec_push_buffer (byte * buffer, long size, byte * src_object,
UINT64 start, UINT64 stop)
{
GstDshowVideoDec *vdec = (GstDshowVideoDec *) src_object;
GstDshowVideoDecClass *klass =
(GstDshowVideoDecClass *) G_OBJECT_GET_CLASS (vdec);
GstBuffer *buf = NULL;
gboolean in_seg = FALSE;
gint64 clip_start = 0, clip_stop = 0;
/* check if this buffer is in our current segment */
in_seg = gst_segment_clip (vdec->segment, GST_FORMAT_TIME,
start, stop, &clip_start, &clip_stop);
/* if the buffer is out of segment do not push it downstream */
if (!in_seg) {
GST_CAT_DEBUG_OBJECT (dshowvideodec_debug, vdec,
"buffer is out of segment, start %" GST_TIME_FORMAT " stop %"
GST_TIME_FORMAT, GST_TIME_ARGS (start), GST_TIME_ARGS (stop));
return FALSE;
}
/* buffer is in our segment allocate a new out buffer and clip its
* timestamps */
vdec->last_ret = gst_pad_alloc_buffer (vdec->srcpad, GST_BUFFER_OFFSET_NONE,
size, GST_PAD_CAPS (vdec->srcpad), &buf);
if (!buf) {
GST_CAT_WARNING_OBJECT (dshowvideodec_debug, vdec,
"can't not allocate a new GstBuffer");
return FALSE;
}
/* set buffer properties */
GST_BUFFER_TIMESTAMP (buf) = clip_start;
GST_BUFFER_DURATION (buf) = clip_stop - clip_start;
if (strstr (klass->entry->srccaps, "rgb")) {
/* FOR RGB directshow decoder will return bottom-up BITMAP
* There is probably a way to get top-bottom video frames from
* the decoder...
*/
gint line = 0;
guint stride = vdec->width * 4;
for (; line < vdec->height; line++) {
memcpy (GST_BUFFER_DATA (buf) + (line * stride),
buffer + (size - ((line + 1) * (stride))), stride);
}
} else {
memcpy (GST_BUFFER_DATA (buf), buffer, MIN (size, GST_BUFFER_SIZE (buf)));
}
GST_CAT_LOG_OBJECT (dshowvideodec_debug, vdec,
"push_buffer (size %d)=> pts %" GST_TIME_FORMAT " stop %" GST_TIME_FORMAT
" duration %" GST_TIME_FORMAT, size,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf) + GST_BUFFER_DURATION (buf)),
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)));
/* push the buffer downstream */
vdec->last_ret = gst_pad_push (vdec->srcpad, buf);
return TRUE;
}
static guint
gst_waveform_sink_write (GstAudioSink * asink, gpointer data, guint length)
{
GstWaveFormSink *wfsink = GST_WAVEFORM_SINK (asink);
WAVEHDR *waveheader;
MMRESULT mmresult;
guint bytes_to_write = length;
guint remaining_length = length;
wfsink->bytes_in_queue += length;
while (remaining_length > 0) {
if (wfsink->free_buffers_count == 0) {
/* no free buffer available, wait for one */
Sleep (10);
continue;
}
/* get the current write buffer header */
waveheader = &wfsink->wave_buffers[wfsink->write_buffer];
/* unprepare the header if needed */
if (waveheader->dwFlags & WHDR_PREPARED) {
mmresult =
waveOutUnprepareHeader (wfsink->hwaveout, waveheader,
sizeof (WAVEHDR));
if (mmresult != MMSYSERR_NOERROR) {
waveOutGetErrorText (mmresult, wfsink->error_string, ERROR_LENGTH - 1);
GST_CAT_WARNING_OBJECT (waveformsink_debug, wfsink,
"Error unpreparing buffer => %s", wfsink->error_string);
}
}
if (wfsink->buffer_size - waveheader->dwUser >= remaining_length)
bytes_to_write = remaining_length;
else
bytes_to_write = wfsink->buffer_size - waveheader->dwUser;
memcpy (waveheader->lpData + waveheader->dwUser, data, bytes_to_write);
waveheader->dwUser += bytes_to_write;
remaining_length -= bytes_to_write;
data = (byte *) data + bytes_to_write;
if (waveheader->dwUser == wfsink->buffer_size) {
/* we have filled a buffer, let's prepare it and next write it to the device */
mmresult =
waveOutPrepareHeader (wfsink->hwaveout, waveheader, sizeof (WAVEHDR));
if (mmresult != MMSYSERR_NOERROR) {
waveOutGetErrorText (mmresult, wfsink->error_string, ERROR_LENGTH - 1);
GST_CAT_WARNING_OBJECT (waveformsink_debug, wfsink,
"gst_waveform_sink_write: Error preparing header => %s",
wfsink->error_string);
}
mmresult = waveOutWrite (wfsink->hwaveout, waveheader, sizeof (WAVEHDR));
if (mmresult != MMSYSERR_NOERROR) {
waveOutGetErrorText (mmresult, wfsink->error_string, ERROR_LENGTH - 1);
GST_CAT_WARNING_OBJECT (waveformsink_debug, wfsink,
"gst_waveform_sink_write: Error writting buffer to the device => %s",
wfsink->error_string);
}
EnterCriticalSection (&wfsink->critic_wave);
wfsink->free_buffers_count--;
LeaveCriticalSection (&wfsink->critic_wave);
wfsink->write_buffer++;
wfsink->write_buffer %= wfsink->buffer_count;
waveheader->dwUser = 0;
wfsink->bytes_in_queue = 0;
GST_CAT_LOG_OBJECT (waveformsink_debug, wfsink,
"gst_waveform_sink_write: Writting a buffer to the device (free buffers remaining=%d, write buffer=%d)",
wfsink->free_buffers_count, wfsink->write_buffer);
}
}
return length;
}