gboolean
gst_droidcamsrc_dev_start (GstDroidCamSrcDev * dev, gboolean apply_settings)
{
gboolean ret = FALSE;
GstDroidCamSrc *src = GST_DROIDCAMSRC (GST_PAD_PARENT (dev->imgsrc->pad));
g_rec_mutex_lock (dev->lock);
if (dev->running) {
GST_WARNING_OBJECT (src, "preview is already running");
ret = TRUE;
goto out;
}
GST_DEBUG_OBJECT (src, "dev start");
if (!gst_buffer_pool_set_active (dev->pool, TRUE)) {
GST_ERROR_OBJECT (src, "Failed to activate buffer pool");
goto out;
}
if (apply_settings) {
gst_droidcamsrc_apply_mode_settings (src, SET_ONLY);
}
/* now set params */
if (!gst_droidcamsrc_dev_set_params (dev)) {
goto out;
}
if (dev->use_raw_data) {
GST_INFO_OBJECT (src, "Using raw data mode");
droid_media_camera_set_preview_callback_flags (dev->cam,
dev->c.CAMERA_FRAME_CALLBACK_FLAG_CAMERA);
} else {
GST_INFO_OBJECT (src, "Using native buffers mode");
droid_media_camera_set_preview_callback_flags (dev->cam,
dev->c.CAMERA_FRAME_CALLBACK_FLAG_NOOP);
}
if (!droid_media_camera_start_preview (dev->cam)) {
GST_ERROR_OBJECT (src, "error starting preview");
goto out;
}
dev->running = TRUE;
ret = TRUE;
out:
if (ret != TRUE) {
gst_buffer_pool_set_active (dev->pool, FALSE);
}
g_rec_mutex_unlock (dev->lock);
return ret;
}
static gboolean
gst_gdk_pixbuf_dec_setup_pool (GstGdkPixbufDec * filter, GstVideoInfo * info)
{
GstCaps *target;
GstQuery *query;
GstBufferPool *pool;
GstStructure *config;
guint size, min, max;
target = gst_pad_get_current_caps (filter->srcpad);
/* try to get a bufferpool now */
/* find a pool for the negotiated caps now */
query = gst_query_new_allocation (target, TRUE);
if (!gst_pad_peer_query (filter->srcpad, query)) {
/* not a problem, we use the query defaults */
GST_DEBUG_OBJECT (filter, "ALLOCATION query failed");
}
if (gst_query_get_n_allocation_pools (query) > 0) {
/* we got configuration from our peer, parse them */
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
} else {
pool = NULL;
size = info->size;
min = max = 0;
}
gst_query_unref (query);
if (pool == NULL) {
/* we did not get a pool, make one ourselves then */
pool = gst_buffer_pool_new ();
}
/* and configure */
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, target, size, min, max);
gst_buffer_pool_set_config (pool, config);
if (filter->pool) {
gst_buffer_pool_set_active (filter->pool, FALSE);
gst_object_unref (filter->pool);
}
filter->pool = pool;
/* and activate */
gst_buffer_pool_set_active (filter->pool, TRUE);
gst_caps_unref (target);
return TRUE;
}
static void
gst_dvdec_negotiate_pool (GstDVDec * dec, GstCaps * caps, GstVideoInfo * info)
{
GstQuery *query;
GstBufferPool *pool;
guint size, min, max;
GstStructure *config;
/* find a pool for the negotiated caps now */
query = gst_query_new_allocation (caps, TRUE);
if (!gst_pad_peer_query (dec->srcpad, query)) {
GST_DEBUG_OBJECT (dec, "didn't get downstream ALLOCATION hints");
}
if (gst_query_get_n_allocation_pools (query) > 0) {
/* we got configuration from our peer, parse them */
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
size = MAX (size, info->size);
} else {
pool = NULL;
size = info->size;
min = max = 0;
}
if (pool == NULL) {
/* we did not get a pool, make one ourselves then */
pool = gst_video_buffer_pool_new ();
}
if (dec->pool) {
gst_buffer_pool_set_active (dec->pool, FALSE);
gst_object_unref (dec->pool);
}
dec->pool = pool;
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
/* just set the option, if the pool can support it we will transparently use
* it through the video info API. We could also see if the pool support this
* option and only activate it then. */
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
gst_buffer_pool_set_config (pool, config);
/* and activate */
gst_buffer_pool_set_active (pool, TRUE);
gst_query_unref (query);
}
static MsdkSurface *
get_surface_from_pool (GstMsdkVPP * thiz, GstBufferPool * pool,
GstBufferPoolAcquireParams * params)
{
GstBuffer *new_buffer;
mfxFrameSurface1 *new_surface;
MsdkSurface *msdk_surface;
if (!gst_buffer_pool_is_active (pool) &&
!gst_buffer_pool_set_active (pool, TRUE)) {
GST_ERROR_OBJECT (pool, "failed to activate buffer pool");
return NULL;
}
if (gst_buffer_pool_acquire_buffer (pool, &new_buffer, params) != GST_FLOW_OK) {
GST_ERROR_OBJECT (pool, "failed to acquire a buffer from pool");
return NULL;
}
if (gst_msdk_is_msdk_buffer (new_buffer))
new_surface = gst_msdk_get_surface_from_buffer (new_buffer);
else {
GST_ERROR_OBJECT (pool, "the acquired memory is not MSDK memory");
return NULL;
}
msdk_surface = g_slice_new0 (MsdkSurface);
msdk_surface->surface = new_surface;
msdk_surface->buf = new_buffer;
return msdk_surface;
}
static gboolean
gst_v4l2_transform_decide_allocation (GstBaseTransform * trans,
GstQuery * query)
{
GstV4l2Transform *self = GST_V4L2_TRANSFORM (trans);
gboolean ret = FALSE;
GST_DEBUG_OBJECT (self, "called");
if (gst_v4l2_object_decide_allocation (self->v4l2capture, query)) {
GstBufferPool *pool = GST_BUFFER_POOL (self->v4l2capture->pool);
ret = GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (trans,
query);
if (!gst_buffer_pool_set_active (pool, TRUE))
goto activate_failed;
}
return ret;
activate_failed:
GST_ELEMENT_ERROR (self, RESOURCE, SETTINGS,
("failed to activate bufferpool"), ("failed to activate bufferpool"));
return TRUE;
}
static GstBuffer *
create_output_buffer (GstMfxPostproc * vpp)
{
GstBuffer *outbuf = NULL;
GstFlowReturn ret;
GstBufferPool *const pool =
GST_MFX_PLUGIN_BASE (vpp)->srcpad_buffer_pool;
g_return_val_if_fail (pool != NULL, NULL);
if (!gst_buffer_pool_set_active (pool, TRUE))
goto error_activate_pool;
ret = gst_buffer_pool_acquire_buffer (pool, &outbuf, NULL);
if (GST_FLOW_OK != ret || !outbuf)
goto error_create_buffer;
return outbuf;
/* Errors */
error_activate_pool:
{
GST_ERROR ("failed to activate output video buffer pool");
return NULL;
}
error_create_buffer:
{
GST_ERROR ("failed to create output video buffer");
return NULL;
}
}
/**
* gst_vaapi_plugin_base_set_caps:
* @plugin: a #GstVaapiPluginBase
* @incaps: the sink pad (input) caps
* @outcaps: the src pad (output) caps
*
* Notifies the base plugin object of the new input and output caps,
* obtained from the subclass.
*
* Returns: %TRUE if the update of caps was successful, %FALSE otherwise.
*/
gboolean
gst_vaapi_plugin_base_set_caps (GstVaapiPluginBase * plugin, GstCaps * incaps,
GstCaps * outcaps)
{
if (incaps && incaps != plugin->sinkpad_caps) {
if (!gst_video_info_from_caps (&plugin->sinkpad_info, incaps))
return FALSE;
gst_caps_replace (&plugin->sinkpad_caps, incaps);
plugin->sinkpad_caps_is_raw = !gst_caps_has_vaapi_surface (incaps);
}
if (outcaps && outcaps != plugin->srcpad_caps) {
if (!gst_video_info_from_caps (&plugin->srcpad_info, outcaps))
return FALSE;
if (plugin->srcpad_buffer_pool
&& !gst_vaapi_buffer_pool_caps_is_equal (plugin->srcpad_buffer_pool,
outcaps)) {
gst_buffer_pool_set_active (plugin->srcpad_buffer_pool, FALSE);
g_clear_object (&plugin->srcpad_buffer_pool);
g_clear_object (&plugin->srcpad_allocator);
plugin_reset_texture_map (plugin);
}
gst_caps_replace (&plugin->srcpad_caps, outcaps);
}
if (!ensure_sinkpad_buffer_pool (plugin, plugin->sinkpad_caps))
return FALSE;
return TRUE;
}
static GstStateChangeReturn
gst_monoscope_change_state (GstElement * element, GstStateChange transition)
{
GstMonoscope *monoscope = GST_MONOSCOPE (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_monoscope_reset (monoscope);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (monoscope->pool) {
gst_buffer_pool_set_active (monoscope->pool, FALSE);
gst_object_replace ((GstObject **) & monoscope->pool, NULL);
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static GstBuffer *
create_output_buffer (GstMsdkVPP * thiz)
{
GstBuffer *outbuf;
GstFlowReturn ret;
GstBufferPool *pool = thiz->srcpad_buffer_pool;
g_return_val_if_fail (pool != NULL, NULL);
if (!gst_buffer_pool_is_active (pool) &&
!gst_buffer_pool_set_active (pool, TRUE))
goto error_activate_pool;
outbuf = NULL;
ret = gst_buffer_pool_acquire_buffer (pool, &outbuf, NULL);
if (ret != GST_FLOW_OK || !outbuf)
goto error_create_buffer;
return outbuf;
/* ERRORS */
error_activate_pool:
{
GST_ERROR_OBJECT (thiz, "failed to activate output video buffer pool");
return NULL;
}
error_create_buffer:
{
GST_ERROR_OBJECT (thiz, "failed to create output video buffer");
return NULL;
}
}
static GstStateChangeReturn
gst_goom_change_state (GstElement * element, GstStateChange transition)
{
GstGoom *goom = GST_GOOM (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_goom_reset (goom);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
if (goom->pool) {
gst_buffer_pool_set_active (goom->pool, FALSE);
gst_object_replace ((GstObject **) & goom->pool, NULL);
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static GstFlowReturn
gst_rtp_vraw_depay_negotiate_pool (GstRtpVRawDepay * depay, GstCaps * caps,
GstVideoInfo * info)
{
GstQuery *query;
GstBufferPool *pool = NULL;
guint size, min, max;
GstStructure *config;
/* find a pool for the negotiated caps now */
query = gst_query_new_allocation (caps, TRUE);
if (!gst_pad_peer_query (GST_RTP_BASE_DEPAYLOAD_SRCPAD (depay), query)) {
/* not a problem, we use the defaults of query */
GST_DEBUG_OBJECT (depay, "could not get downstream ALLOCATION hints");
}
if (gst_query_get_n_allocation_pools (query) > 0) {
/* we got configuration from our peer, parse them */
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
} else {
GST_DEBUG_OBJECT (depay, "didn't get downstream pool hints");
size = info->size;
min = max = 0;
}
if (pool == NULL) {
/* we did not get a pool, make one ourselves then */
pool = gst_video_buffer_pool_new ();
}
if (depay->pool)
gst_object_unref (depay->pool);
depay->pool = pool;
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
/* just set the metadata, if the pool can support it we will transparently use
* it through the video info API. We could also see if the pool support this
* metadata and only activate it then. */
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
gst_buffer_pool_set_config (pool, config);
/* and activate */
gst_buffer_pool_set_active (pool, TRUE);
gst_query_unref (query);
return GST_FLOW_OK;
}
static GstStateChangeReturn
gst_dvdec_change_state (GstElement * element, GstStateChange transition)
{
GstDVDec *dvdec = GST_DVDEC (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
dvdec->decoder =
dv_decoder_new (0, dvdec->clamp_luma, dvdec->clamp_chroma);
dvdec->decoder->quality = qualities[dvdec->quality];
dv_set_error_log (dvdec->decoder, NULL);
gst_video_info_init (&dvdec->vinfo);
gst_segment_init (&dvdec->segment, GST_FORMAT_UNDEFINED);
dvdec->src_negotiated = FALSE;
dvdec->sink_negotiated = FALSE;
dvdec->need_segment = FALSE;
/*
* Enable this function call when libdv2 0.100 or higher is more
* common
*/
/* dv_set_quality (dvdec->decoder, qualities [dvdec->quality]); */
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:
dv_decoder_free (dvdec->decoder);
dvdec->decoder = NULL;
if (dvdec->pool) {
gst_buffer_pool_set_active (dvdec->pool, FALSE);
gst_object_unref (dvdec->pool);
dvdec->pool = NULL;
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static GstFlowReturn gst_imx_compositor_get_output_buffer(GstImxBPVideoAggregator *videoaggregator, GstBuffer **outbuffer)
{
GstImxCompositor *compositor = GST_IMX_COMPOSITOR(videoaggregator);
GstBufferPool *pool = compositor->dma_bufferpool;
/* Return a DMA buffer from the pool. The output buffers produced by
* the video aggregator base class will use this function to allocate. */
if (!gst_buffer_pool_is_active(pool))
gst_buffer_pool_set_active(pool, TRUE);
return gst_buffer_pool_acquire_buffer(pool, outbuffer, NULL);
}
static void
gst_rtp_vraw_depay_reset (GstRtpVRawDepay * rtpvrawdepay)
{
if (rtpvrawdepay->outbuf) {
gst_buffer_unref (rtpvrawdepay->outbuf);
rtpvrawdepay->outbuf = NULL;
}
rtpvrawdepay->timestamp = -1;
if (rtpvrawdepay->pool) {
gst_buffer_pool_set_active (rtpvrawdepay->pool, FALSE);
gst_object_unref (rtpvrawdepay->pool);
rtpvrawdepay->pool = NULL;
}
}
static MsdkSurface *
get_surface (GstMsdkDec * thiz, GstBuffer * buffer)
{
MsdkSurface *i;
i = g_slice_new0 (MsdkSurface);
if (gst_msdk_is_msdk_buffer (buffer)) {
i->surface = gst_msdk_get_surface_from_buffer (buffer);
i->buf = buffer;
} else {
/* Confirm to activate the side pool */
if (!gst_buffer_pool_is_active (thiz->pool) &&
!gst_buffer_pool_set_active (thiz->pool, TRUE)) {
g_slice_free (MsdkSurface, i);
return NULL;
}
if (!gst_video_frame_map (&i->copy, &thiz->non_msdk_pool_info, buffer,
GST_MAP_WRITE))
goto failed_unref_buffer;
if (gst_buffer_pool_acquire_buffer (thiz->pool, &buffer,
NULL) != GST_FLOW_OK)
goto failed_unmap_copy;
i->surface = gst_msdk_get_surface_from_buffer (buffer);
i->buf = buffer;
if (!gst_video_frame_map (&i->data, &thiz->output_info, buffer,
GST_MAP_READWRITE))
goto failed_unref_buffer2;
}
thiz->decoded_msdk_surfaces = g_list_append (thiz->decoded_msdk_surfaces, i);
return i;
failed_unref_buffer2:
gst_buffer_unref (buffer);
buffer = i->data.buffer;
failed_unmap_copy:
gst_video_frame_unmap (&i->copy);
failed_unref_buffer:
gst_buffer_unref (buffer);
g_slice_free (MsdkSurface, i);
GST_ERROR_OBJECT (thiz, "failed to handle buffer");
return NULL;
}
static gboolean
gst_mpeg2dec_flush (GstVideoDecoder * decoder)
{
GstMpeg2dec *mpeg2dec = GST_MPEG2DEC (decoder);
/* reset the initial video state */
mpeg2dec->discont_state = MPEG2DEC_DISC_NEW_PICTURE;
mpeg2_reset (mpeg2dec->decoder, 1);
mpeg2_skip (mpeg2dec->decoder, 1);
gst_mpeg2dec_clear_buffers (mpeg2dec);
if (mpeg2dec->downstream_pool)
gst_buffer_pool_set_active (mpeg2dec->downstream_pool, FALSE);
return TRUE;
}
static GstFlowReturn
gst_gl_mixer_get_output_buffer (GstVideoAggregator * videoaggregator,
GstBuffer ** outbuf)
{
GstGLMixer *mix = GST_GL_MIXER (videoaggregator);
if (!mix->priv->pool_active) {
if (!gst_buffer_pool_set_active (mix->priv->pool, TRUE)) {
GST_ELEMENT_ERROR (mix, RESOURCE, SETTINGS,
("failed to activate bufferpool"), ("failed to activate bufferpool"));
return GST_FLOW_ERROR;
}
mix->priv->pool_active = TRUE;
}
return gst_buffer_pool_acquire_buffer (mix->priv->pool, outbuf, NULL);
}
static GstStateChangeReturn
gst_gdk_pixbuf_dec_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstGdkPixbufDec *dec = GST_GDK_PIXBUF_DEC (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
/* default to single image mode, setcaps function might not be called */
dec->in_fps_n = 0;
dec->in_fps_d = 1;
gst_video_info_init (&dec->info);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
dec->in_fps_n = 0;
dec->in_fps_d = 0;
if (dec->pool) {
gst_buffer_pool_set_active (dec->pool, FALSE);
gst_object_replace ((GstObject **) & dec->pool, NULL);
}
g_list_free_full (dec->pending_events, (GDestroyNotify) gst_event_unref);
dec->pending_events = NULL;
if (dec->pixbuf_loader != NULL) {
gdk_pixbuf_loader_close (dec->pixbuf_loader, NULL);
g_object_unref (G_OBJECT (dec->pixbuf_loader));
dec->pixbuf_loader = NULL;
}
break;
default:
break;
}
return ret;
}
void
gst_droid_cam_src_stream_window_clear (GstDroidCamSrcStreamWindow * win)
{
GST_DEBUG ("stream window clear");
g_mutex_lock (&win->lock);
if (win->pool) {
if (!gst_buffer_pool_set_active (GST_BUFFER_POOL (win->pool), FALSE)) {
GST_ERROR ("failed to deactivate buffer pool");
}
gst_object_unref (win->pool);
win->pool = NULL;
}
g_mutex_unlock (&win->lock);
}
/* takes ownership of the pool, allocator and query */
static gboolean
gst_gl_mixer_set_allocation (GstGLMixer * mix,
GstBufferPool * pool, GstAllocator * allocator,
GstAllocationParams * params, GstQuery * query)
{
GstAllocator *oldalloc;
GstBufferPool *oldpool;
GstQuery *oldquery;
GstGLMixerPrivate *priv = mix->priv;
GST_DEBUG ("storing allocation query");
GST_OBJECT_LOCK (mix);
oldpool = priv->pool;
priv->pool = pool;
priv->pool_active = FALSE;
oldalloc = priv->allocator;
priv->allocator = allocator;
oldquery = priv->query;
priv->query = query;
if (params)
priv->params = *params;
else
gst_allocation_params_init (&priv->params);
GST_OBJECT_UNLOCK (mix);
if (oldpool) {
GST_DEBUG_OBJECT (mix, "deactivating old pool %p", oldpool);
gst_buffer_pool_set_active (oldpool, FALSE);
gst_object_unref (oldpool);
}
if (oldalloc) {
gst_object_unref (oldalloc);
}
if (oldquery) {
gst_query_unref (oldquery);
}
return TRUE;
}
void
gst_droid_cam_src_stream_window_destroy (GstDroidCamSrcStreamWindow * win)
{
GST_DEBUG ("stream window destroy");
gst_object_unref (win->allocator);
win->allocator = NULL;
g_mutex_clear (&win->lock);
if (win->pool) {
if (!gst_buffer_pool_set_active (GST_BUFFER_POOL (win->pool), FALSE)) {
GST_ERROR ("failed to deactivate buffer pool");
}
gst_object_unref (win->pool);
}
g_slice_free (GstDroidCamSrcStreamWindow, win);
}
static GstStateChangeReturn
gst_y4m_dec_change_state (GstElement * element, GstStateChange transition)
{
GstY4mDec *y4mdec;
GstStateChangeReturn ret;
g_return_val_if_fail (GST_IS_Y4M_DEC (element), GST_STATE_CHANGE_FAILURE);
y4mdec = GST_Y4M_DEC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
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 (y4mdec->pool) {
gst_buffer_pool_set_active (y4mdec->pool, FALSE);
gst_object_unref (y4mdec->pool);
}
y4mdec->pool = NULL;
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static void
gst_buffer_pool_finalize (GObject * object)
{
GstBufferPool *pool;
GstBufferPoolPrivate *priv;
pool = GST_BUFFER_POOL_CAST (object);
priv = pool->priv;
GST_DEBUG_OBJECT (pool, "finalize");
gst_buffer_pool_set_active (pool, FALSE);
gst_atomic_queue_unref (priv->queue);
gst_poll_free (priv->poll);
gst_structure_free (priv->config);
g_rec_mutex_clear (&priv->rec_lock);
if (priv->allocator)
gst_object_unref (priv->allocator);
G_OBJECT_CLASS (gst_buffer_pool_parent_class)->finalize (object);
}
static gboolean
gst_mpeg2dec_stop (GstVideoDecoder * decoder)
{
GstMpeg2dec *mpeg2dec = GST_MPEG2DEC (decoder);
mpeg2_reset (mpeg2dec->decoder, 0);
mpeg2_skip (mpeg2dec->decoder, 1);
gst_mpeg2dec_clear_buffers (mpeg2dec);
if (mpeg2dec->input_state)
gst_video_codec_state_unref (mpeg2dec->input_state);
mpeg2dec->input_state = NULL;
if (mpeg2dec->downstream_pool) {
gst_buffer_pool_set_active (mpeg2dec->downstream_pool, FALSE);
gst_object_unref (mpeg2dec->downstream_pool);
}
return TRUE;
}
static GstFlowReturn
gst_gl_stereo_mix_get_output_buffer (GstVideoAggregator * videoaggregator,
GstBuffer ** outbuf)
{
GstGLStereoMix *mix = GST_GL_STEREO_MIX (videoaggregator);
GstFlowReturn ret = GST_FLOW_OK;
#if 0
if (!mix->priv->pool_active) {
if (!gst_buffer_pool_set_active (mix->priv->pool, TRUE)) {
GST_ELEMENT_ERROR (mix, RESOURCE, SETTINGS,
("failed to activate bufferpool"), ("failed to activate bufferpool"));
return GST_FLOW_ERROR;
}
mix->priv->pool_active = TRUE;
}
return gst_buffer_pool_acquire_buffer (mix->priv->pool, outbuf, NULL);
#endif
if (!gst_gl_stereo_mix_make_output (mix)) {
gst_buffer_replace (&mix->primary_out, NULL);
gst_buffer_replace (&mix->auxilliary_out, NULL);
GST_ELEMENT_ERROR (mix, RESOURCE, SETTINGS,
("Failed to generate output"), ("failed to generate output"));
ret = GST_FLOW_ERROR;
}
if (mix->auxilliary_out) {
*outbuf = mix->auxilliary_out;
mix->auxilliary_out = NULL;
} else {
*outbuf = mix->primary_out;
mix->primary_out = NULL;
}
return ret;
}
void
gst_droidcamsrc_dev_stop (GstDroidCamSrcDev * dev)
{
g_rec_mutex_lock (dev->lock);
GST_DEBUG ("dev stop");
if (dev->running) {
GST_DEBUG ("stopping preview");
gst_buffer_pool_set_active (dev->pool, FALSE);
droid_media_camera_stop_preview (dev->cam);
dev->running = FALSE;
GST_DEBUG ("stopped preview");
}
/* Now we need to empty the queue */
g_mutex_lock (&dev->vfsrc->lock);
g_queue_foreach (dev->vfsrc->queue, (GFunc) gst_buffer_unref, NULL);
g_queue_clear (dev->vfsrc->queue);
g_mutex_unlock (&dev->vfsrc->lock);
g_rec_mutex_unlock (dev->lock);
}
static gboolean
gst_v4l2src_decide_allocation (GstBaseSrc * bsrc, GstQuery * query)
{
GstV4l2Src *src = GST_V4L2SRC (bsrc);
gboolean ret = TRUE;
if (src->pending_set_fmt) {
GstCaps *caps = gst_pad_get_current_caps (GST_BASE_SRC_PAD (bsrc));
if (!gst_v4l2_object_stop (src->v4l2object))
return FALSE;
ret = gst_v4l2src_set_format (src, caps);
gst_caps_unref (caps);
src->pending_set_fmt = FALSE;
}
if (ret) {
ret = gst_v4l2_object_decide_allocation (src->v4l2object, query);
if (ret)
ret = GST_BASE_SRC_CLASS (parent_class)->decide_allocation (bsrc, query);
}
if (ret) {
if (!gst_buffer_pool_set_active (src->v4l2object->pool, TRUE))
goto activate_failed;
}
return ret;
activate_failed:
{
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS,
(_("Failed to allocate required memory.")),
("Buffer pool activation failed"));
return FALSE;
}
}
static gboolean
gst_v4l2src_decide_allocation (GstBaseSrc * bsrc, GstQuery * query)
{
GstV4l2Src *src = GST_V4L2SRC (bsrc);
gboolean ret = FALSE;
if (gst_v4l2_object_decide_allocation (src->v4l2object, query))
ret = GST_BASE_SRC_CLASS (parent_class)->decide_allocation (bsrc, query);
if (ret) {
if (!gst_buffer_pool_set_active (src->v4l2object->pool, TRUE))
goto activate_failed;
}
return ret;
activate_failed:
{
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS,
(_("Failed to allocate required memory.")),
("Buffer pool activation failed"));
return FALSE;
}
}
static GstStateChangeReturn
gst_gdk_pixbuf_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstGdkPixbuf *dec = GST_GDK_PIXBUF (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
/* default to single image mode, setcaps function might not be called */
dec->in_fps_n = 0;
dec->in_fps_d = 1;
gst_video_info_init (&dec->info);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
dec->in_fps_n = 0;
dec->in_fps_d = 0;
if (dec->pool) {
gst_buffer_pool_set_active (dec->pool, FALSE);
gst_object_replace ((GstObject **) & dec->pool, NULL);
}
break;
default:
break;
}
return ret;
}
/**
* ensure_sinkpad_buffer_pool:
* @plugin: a #GstVaapiPluginBase
* @caps: the initial #GstCaps for the resulting buffer pool
*
* Makes sure the sink pad video buffer pool is created with the
* appropriate @caps.
*
* Returns: %TRUE if successful, %FALSE otherwise.
*/
static gboolean
ensure_sinkpad_buffer_pool (GstVaapiPluginBase * plugin, GstCaps * caps)
{
GstBufferPool *pool;
guint size;
/* video decoders don't use a buffer pool in the sink pad */
if (GST_IS_VIDEO_DECODER (plugin))
return TRUE;
if (!gst_vaapi_plugin_base_ensure_display (plugin))
return FALSE;
if (plugin->sinkpad_buffer_pool) {
if (gst_vaapi_buffer_pool_caps_is_equal (plugin->sinkpad_buffer_pool, caps))
return TRUE;
gst_buffer_pool_set_active (plugin->sinkpad_buffer_pool, FALSE);
g_clear_object (&plugin->sinkpad_buffer_pool);
g_clear_object (&plugin->sinkpad_allocator);
plugin->sinkpad_buffer_size = 0;
}
if (!ensure_sinkpad_allocator (plugin, caps, &size))
return FALSE;
pool =
gst_vaapi_plugin_base_create_pool (plugin, caps, size,
BUFFER_POOL_SINK_MIN_BUFFERS, 0,
GST_VAAPI_VIDEO_BUFFER_POOL_OPTION_VIDEO_META, plugin->sinkpad_allocator);
if (!pool)
return FALSE;
plugin->sinkpad_buffer_pool = pool;
plugin->sinkpad_buffer_size = size;
return TRUE;
}
