static GstCaps *
gst_decklink_audio_sink_get_caps (GstBaseSink * bsink, GstCaps * filter)
{
GstDecklinkAudioSink *self = GST_DECKLINK_AUDIO_SINK_CAST (bsink);
GstCaps *caps;
if ((caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (bsink))))
return caps;
caps = gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD (bsink));
GST_OBJECT_LOCK (self);
if (self->output && self->output->attributes) {
int64_t max_channels = 0;
HRESULT ret;
GstStructure *s;
GValue arr = G_VALUE_INIT;
GValue v = G_VALUE_INIT;
ret =
self->output->attributes->GetInt (BMDDeckLinkMaximumAudioChannels,
&max_channels);
/* 2 should always be supported */
if (ret != S_OK) {
max_channels = 2;
}
caps = gst_caps_make_writable (caps);
s = gst_caps_get_structure (caps, 0);
g_value_init (&arr, GST_TYPE_LIST);
g_value_init (&v, G_TYPE_INT);
if (max_channels >= 16) {
g_value_set_int (&v, 16);
gst_value_list_append_value (&arr, &v);
}
if (max_channels >= 8) {
g_value_set_int (&v, 8);
gst_value_list_append_value (&arr, &v);
}
g_value_set_int (&v, 2);
gst_value_list_append_value (&arr, &v);
gst_structure_set_value (s, "channels", &arr);
g_value_unset (&v);
g_value_unset (&arr);
}
GST_OBJECT_UNLOCK (self);
if (filter) {
GstCaps *intersection =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = intersection;
}
return caps;
}
GstCaps *
gst_edt_pdv_sink_get_caps (GstBaseSink * basesink, GstCaps * filter_caps)
{
GstEdtPdvSink *pdvsink = GST_EDT_PDV_SINK (basesink);
gint width, height, depth;
GstVideoFormat format;
GstVideoInfo vinfo;
if (!pdvsink->dev) {
return gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD
(pdvsink)));
}
gst_video_info_init (&vinfo);
width = pdv_get_width (pdvsink->dev);
height = pdv_get_height (pdvsink->dev);
depth = pdv_get_depth (pdvsink->dev);
switch (depth) {
case 8:
format = GST_VIDEO_FORMAT_GRAY8;
break;
case 16:
/* TODO: will this be host order or always one of BE/LE? */
format = GST_VIDEO_FORMAT_GRAY16_BE;
break;
default:
format = GST_VIDEO_FORMAT_UNKNOWN;
}
gst_video_info_set_format (&vinfo, format, width, height);
/* TODO: handle filter_caps */
return gst_video_info_to_caps (&vinfo);
}
static gboolean
gst_wayland_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
{
GstWaylandSink *sink = GST_WAYLAND_SINK (bsink);
const GstStructure *structure;
GstCaps *allowed_caps;
gboolean ret = TRUE;
GST_LOG_OBJECT (sink, "set caps %" GST_PTR_FORMAT, caps);
allowed_caps = gst_pad_get_caps (GST_BASE_SINK_PAD (bsink));
if (!gst_caps_can_intersect (allowed_caps, caps))
return FALSE;
structure = gst_caps_get_structure (caps, 0);
ret &= gst_structure_get_int (structure, "width", &sink->video_width);
ret &= gst_structure_get_int (structure, "height", &sink->video_height);
if (!ret)
return FALSE;
gst_caps_replace (&sink->caps, caps);
return TRUE;
}
static void
gst_shout2send_init (GstShout2send * shout2send)
{
gst_base_sink_set_sync (GST_BASE_SINK (shout2send), FALSE);
gst_pad_set_setcaps_function (GST_BASE_SINK_PAD (shout2send),
GST_DEBUG_FUNCPTR (gst_shout2send_setcaps));
shout2send->timer = gst_poll_new_timer ();
shout2send->ip = g_strdup (DEFAULT_IP);
shout2send->port = DEFAULT_PORT;
shout2send->password = g_strdup (DEFAULT_PASSWORD);
shout2send->username = g_strdup (DEFAULT_USERNAME);
shout2send->streamname = g_strdup (DEFAULT_STREAMNAME);
shout2send->description = g_strdup (DEFAULT_DESCRIPTION);
shout2send->genre = g_strdup (DEFAULT_GENRE);
shout2send->mount = g_strdup (DEFAULT_MOUNT);
shout2send->url = g_strdup (DEFAULT_URL);
shout2send->protocol = DEFAULT_PROTOCOL;
shout2send->ispublic = DEFAULT_PUBLIC;
shout2send->tags = gst_tag_list_new ();
shout2send->conn = NULL;
shout2send->audio_format = SHOUT_FORMAT_VORBIS;
shout2send->connected = FALSE;
shout2send->songmetadata = NULL;
shout2send->songartist = NULL;
shout2send->songtitle = NULL;
}
static GstCaps *
gst_oss_sink_getcaps (GstBaseSink * bsink, GstCaps * filter)
{
GstOssSink *osssink;
GstCaps *caps;
osssink = GST_OSSSINK (bsink);
if (osssink->fd == -1) {
caps = gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD (bsink));
} else if (osssink->probed_caps) {
caps = gst_caps_ref (osssink->probed_caps);
} else {
caps = gst_oss_helper_probe_caps (osssink->fd);
if (caps && !gst_caps_is_empty (caps)) {
osssink->probed_caps = gst_caps_ref (caps);
}
}
if (filter && caps) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
return intersection;
} else {
return caps;
}
}
static GstCaps *
gst_openal_sink_getcaps (GstBaseSink * bsink)
{
GstOpenALSink *sink = GST_OPENAL_SINK (bsink);
GstCaps *caps;
if (sink->device == NULL) {
GstPad *pad = GST_BASE_SINK_PAD (bsink);
caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
} else if (sink->probed_caps)
caps = gst_caps_copy (sink->probed_caps);
else {
if (sink->context)
caps = gst_openal_helper_probe_caps (sink->context);
else if (sink->custom_ctx)
caps = gst_openal_helper_probe_caps (sink->custom_ctx);
else {
ALCcontext *ctx = alcCreateContext (sink->device, NULL);
if (ctx) {
caps = gst_openal_helper_probe_caps (ctx);
alcDestroyContext (ctx);
} else {
GST_ELEMENT_WARNING (sink, RESOURCE, FAILED,
("Could not create temporary context."),
GST_ALC_ERROR (sink->device));
caps = NULL;
}
}
if (caps && !gst_caps_is_empty (caps))
sink->probed_caps = gst_caps_copy (caps);
}
return caps;
}
static GstCaps *
gst_v4l2sink_get_caps (GstBaseSink * bsink)
{
GstV4l2Sink *v4l2sink = GST_V4L2SINK (bsink);
GstCaps *ret;
GSList *walk;
GSList *formats;
if (!GST_V4L2_IS_OPEN (v4l2sink->v4l2object)) {
/* FIXME: copy? */
GST_DEBUG_OBJECT (v4l2sink, "device is not open");
return
gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD
(v4l2sink)));
}
if (v4l2sink->probed_caps) {
LOG_CAPS (v4l2sink, v4l2sink->probed_caps);
return gst_caps_ref (v4l2sink->probed_caps);
}
formats = gst_v4l2_object_get_format_list (v4l2sink->v4l2object);
ret = gst_caps_new_empty ();
for (walk = v4l2sink->v4l2object->formats; walk; walk = walk->next) {
struct v4l2_fmtdesc *format;
GstStructure *template;
/* GstBaseSink vmethod implementations */
static GstCaps *
gst_osx_audio_sink_getcaps (GstBaseSink * sink)
{
GstCaps *caps;
GstOsxAudioSink *osxsink;
OSStatus status;
AudioValueRange rates[10];
UInt32 propertySize;
int i;
propertySize = sizeof (AudioValueRange) * 9;
osxsink = GST_OSX_AUDIO_SINK (sink);
caps = gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD
(sink)));
status = AudioDeviceGetProperty (osxsink->ringbuffer->device_id, 0, FALSE,
kAudioDevicePropertyAvailableNominalSampleRates, &propertySize, &rates);
GST_DEBUG
("Getting available sample rates: Status: %ld number of ranges: %lu",
status, propertySize / sizeof (AudioValueRange));
for (i = 0; i < propertySize / sizeof (AudioValueRange); i++) {
GST_LOG_OBJECT (osxsink, "Range from %f to %f", rates[i].mMinimum,
rates[i].mMaximum);
}
return caps;
}
static GstFlowReturn
gst_test_reverse_negotiation_sink_render (GstBaseSink * bsink,
GstBuffer * buffer)
{
GstTestReverseNegotiationSink *sink =
GST_TEST_REVERSE_NEGOTIATION_SINK (bsink);
GstCaps *caps;
GstVideoInfo info;
caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (bsink));
fail_unless (caps != NULL);
fail_unless (gst_video_info_from_caps (&info, caps));
sink->nbuffers++;
/* The third buffer is still in the old size
* because the videoconverts can't convert
* the frame sizes
*/
if (sink->nbuffers > 3) {
fail_unless_equals_int (GST_VIDEO_INFO_WIDTH (&info), 512);
fail_unless_equals_int (GST_VIDEO_INFO_HEIGHT (&info), 128);
}
gst_caps_unref (caps);
return GST_FLOW_OK;
}
static void
gst_gio_base_sink_init (GstGioBaseSink * sink, GstGioBaseSinkClass * gclass)
{
gst_pad_set_query_function (GST_BASE_SINK_PAD (sink),
GST_DEBUG_FUNCPTR (gst_gio_base_sink_query));
gst_base_sink_set_sync (GST_BASE_SINK (sink), FALSE);
sink->cancel = g_cancellable_new ();
}
static GstCaps *
gst_v4l2sink_get_caps (GstBaseSink * bsink, GstCaps * filter)
{
GstV4l2Sink *v4l2sink = GST_V4L2SINK (bsink);
if (!GST_V4L2_IS_OPEN (v4l2sink->v4l2object)) {
/* FIXME: copy? */
GST_DEBUG_OBJECT (v4l2sink, "device is not open");
return gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD (v4l2sink));
}
return gst_v4l2_object_get_caps (v4l2sink->v4l2object, filter);
}
static void
gst_gnome_vfs_sink_init (GstGnomeVFSSink * sink, GstGnomeVFSSinkClass * klass)
{
gst_pad_set_query_function (GST_BASE_SINK_PAD (sink),
GST_DEBUG_FUNCPTR (gst_gnome_vfs_sink_query));
sink->uri = NULL;
sink->uri_name = NULL;
sink->handle = NULL;
sink->own_handle = FALSE;
sink->current_pos = 0;
GST_BASE_SINK (sink)->sync = FALSE;
}
static void
gst_fd_sink_init (GstFdSink * fdsink, GstFdSinkClass * klass)
{
GstPad *pad;
pad = GST_BASE_SINK_PAD (fdsink);
gst_pad_set_query_function (pad, GST_DEBUG_FUNCPTR (gst_fd_sink_query));
fdsink->fd = 1;
fdsink->uri = g_strdup_printf ("fd://%d", fdsink->fd);
fdsink->bytes_written = 0;
fdsink->current_pos = 0;
gst_base_sink_set_sync (GST_BASE_SINK (fdsink), FALSE);
}
const gchar *
get_mime_type (GstAnalyzerSink * sink)
{
GstCaps *caps = NULL;
GstStructure *structure;
const gchar *name;
caps = gst_pad_get_allowed_caps (GST_BASE_SINK_PAD (sink));
if (caps) {
caps = gst_caps_truncate (caps);
structure = gst_caps_get_structure (caps, 0);
name = g_strdup (gst_structure_get_name (structure));
gst_caps_unref (caps);
return name;
}
return NULL;
}
static GstCaps *
gst_openal_sink_getcaps (GstBaseSink * basesink, GstCaps * filter)
{
GstOpenALSink *sink = GST_OPENAL_SINK (basesink);
GstCaps *caps;
if (sink->default_device == NULL) {
GstPad *pad = GST_BASE_SINK_PAD (basesink);
GstCaps *tcaps = gst_pad_get_pad_template_caps (pad);
caps = gst_caps_copy (tcaps);
gst_caps_unref (tcaps);
} else if (sink->probed_caps)
caps = gst_caps_copy (sink->probed_caps);
else {
if (sink->default_context)
caps = gst_openal_helper_probe_caps (sink->default_context);
else if (sink->user_context)
caps = gst_openal_helper_probe_caps (sink->user_context);
else {
ALCcontext *context = alcCreateContext (sink->default_device, NULL);
if (context) {
caps = gst_openal_helper_probe_caps (context);
alcDestroyContext (context);
} else {
GST_ELEMENT_WARNING (sink, RESOURCE, FAILED,
("Could not create temporary context."),
GST_ALC_ERROR (sink->default_device));
caps = NULL;
}
}
if (caps && !gst_caps_is_empty (caps))
sink->probed_caps = gst_caps_copy (caps);
}
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
return intersection;
} else {
return caps;
}
}
static void
gst_file_sink_init (GstFileSink * filesink, GstFileSinkClass * g_class)
{
GstPad *pad;
pad = GST_BASE_SINK_PAD (filesink);
gst_pad_set_query_function (pad, GST_DEBUG_FUNCPTR (gst_file_sink_query));
filesink->filename = NULL;
filesink->file = NULL;
filesink->buffer_mode = DEFAULT_BUFFER_MODE;
filesink->buffer_size = DEFAULT_BUFFER_SIZE;
filesink->buffer = NULL;
filesink->append = FALSE;
gst_base_sink_set_sync (GST_BASE_SINK (filesink), FALSE);
}
static GstCaps *
gst_eglglessink_getcaps (GstBaseSink * bsink)
{
GstEglGlesSink *eglglessink;
GstCaps *ret = NULL;
eglglessink = GST_EGLGLESSINK (bsink);
GST_OBJECT_LOCK (eglglessink);
if (eglglessink->sinkcaps) {
ret = gst_caps_ref (eglglessink->sinkcaps);
} else {
ret =
gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD
(bsink)));
}
GST_OBJECT_UNLOCK (eglglessink);
return ret;
}
static void
type_instance_init (GTypeInstance * instance, gpointer g_class)
{
GstOmxBaseSink *self;
self = GST_OMX_BASE_SINK (instance);
GST_LOG_OBJECT (self, "begin");
self->gomx = gstomx_core_new (self, G_TYPE_FROM_CLASS (g_class));
self->in_port = g_omx_core_new_port (self->gomx, 0);
{
GstPad *sinkpad;
self->sinkpad = sinkpad = GST_BASE_SINK_PAD (self);
self->base_activatepush = GST_PAD_ACTIVATEPUSHFUNC (sinkpad);
gst_pad_set_activatepush_function (sinkpad, activate_push);
gst_pad_set_link_function (sinkpad, pad_sink_link);
}
GST_LOG_OBJECT (self, "end");
}
static void
gst_aasink_init (GstAASink * aasink)
{
GstPad *pad;
pad = GST_BASE_SINK_PAD (aasink);
gst_pad_set_fixatecaps_function (pad, gst_aasink_fixate);
memcpy (&aasink->ascii_surf, &aa_defparams,
sizeof (struct aa_hardware_params));
aasink->ascii_parms.bright = 0;
aasink->ascii_parms.contrast = 16;
aasink->ascii_parms.gamma = 1.0;
aasink->ascii_parms.dither = 0;
aasink->ascii_parms.inversion = 0;
aasink->ascii_parms.randomval = 0;
aasink->aa_driver = 0;
aasink->width = -1;
aasink->height = -1;
}
static GstCaps *
gst_oss_sink_getcaps (GstBaseSink * bsink)
{
GstOssSink *osssink;
GstCaps *caps;
osssink = GST_OSSSINK (bsink);
if (osssink->fd == -1) {
caps = gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD
(bsink)));
} else if (osssink->probed_caps) {
caps = gst_caps_copy (osssink->probed_caps);
} else {
caps = gst_oss_helper_probe_caps (osssink->fd);
if (caps && !gst_caps_is_empty (caps)) {
osssink->probed_caps = gst_caps_copy (caps);
}
}
return caps;
}
static GstCaps *
gst_audioflinger_sink_getcaps (GstBaseSink * bsink)
{
GstAudioFlingerSink *audioflinger_sink;
GstCaps *caps;
audioflinger_sink = GST_AUDIOFLINGERSINK (bsink);
GST_DEBUG_OBJECT (audioflinger_sink, "enter,%p", audioflinger_sink->audioflinger_device);
if (audioflinger_sink->audioflinger_device == NULL
|| audioflinger_sink->m_init == FALSE) {
caps = gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD
(bsink)));
} else if (audioflinger_sink->probed_caps) {
caps = gst_caps_copy (audioflinger_sink->probed_caps);
} else {
caps = gst_caps_new_any ();
if (caps && !gst_caps_is_empty (caps)) {
audioflinger_sink->probed_caps = gst_caps_copy (caps);
}
}
return caps;
}
static void
type_instance_init (GTypeInstance *instance,
gpointer g_class)
{
GstOmxBaseSink *self;
self = GST_OMX_BASE_SINK (instance);
GST_LOG_OBJECT (self, "begin");
/* GOmx */
{
GOmxCore *gomx;
self->gomx = gomx = g_omx_core_new ();
gomx->object = self;
}
{
const char *tmp;
tmp = g_type_get_qdata (G_OBJECT_CLASS_TYPE (g_class),
g_quark_from_static_string ("library-name"));
self->omx_library = g_strdup (tmp);
tmp = g_type_get_qdata (G_OBJECT_CLASS_TYPE (g_class),
g_quark_from_static_string ("component-name"));
self->omx_component = g_strdup (tmp);
}
{
GstPad *sinkpad;
self->sinkpad = sinkpad = GST_BASE_SINK_PAD (self);
self->base_activatepush = GST_PAD_ACTIVATEPUSHFUNC (sinkpad);
gst_pad_set_activatepush_function (sinkpad, activate_push);
gst_pad_set_link_function (sinkpad, pad_sink_link);
}
GST_LOG_OBJECT (self, "end");
}
static GstCaps *
gst_gtk_gl_sink_get_caps (GstBaseSink * bsink, GstCaps * filter)
{
GstCaps *tmp = NULL;
GstCaps *result = NULL;
tmp = gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD (bsink));
if (filter) {
GST_DEBUG_OBJECT (bsink, "intersecting with filter caps %" GST_PTR_FORMAT,
filter);
result = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
} else {
result = tmp;
}
result = gst_gl_overlay_compositor_add_caps (result);
GST_DEBUG_OBJECT (bsink, "returning caps: %" GST_PTR_FORMAT, result);
return result;
}
static CoglBool
cogl_gst_source_dispatch (GSource *source,
GSourceFunc callback,
void *user_data)
{
CoglGstSource *gst_source= (CoglGstSource*) source;
CoglGstVideoSinkPrivate *priv = gst_source->sink->priv;
GstBuffer *buffer;
g_mutex_lock (&gst_source->buffer_lock);
if (G_UNLIKELY (gst_source->has_new_caps))
{
GstCaps *caps =
gst_pad_get_current_caps (GST_BASE_SINK_PAD ((GST_BASE_SINK
(gst_source->sink))));
if (!cogl_gst_video_sink_parse_caps (caps, gst_source->sink, TRUE))
goto negotiation_fail;
gst_source->has_new_caps = FALSE;
priv->free_layer = priv->custom_start + priv->renderer->n_layers;
dirty_default_pipeline (gst_source->sink);
/* We are now in a state where we could generate the pipeline if
* the application requests it so we can emit the signal.
* However we'll actually generate the pipeline lazily only if
* the application actually asks for it. */
g_signal_emit (gst_source->sink,
video_sink_signals[PIPELINE_READY_SIGNAL],
0 /* detail */);
}
buffer = gst_source->buffer;
gst_source->buffer = NULL;
g_mutex_unlock (&gst_source->buffer_lock);
if (buffer)
{
if (!priv->renderer->upload (gst_source->sink, buffer))
goto fail_upload;
g_signal_emit (gst_source->sink,
video_sink_signals[NEW_FRAME_SIGNAL], 0,
NULL);
gst_buffer_unref (buffer);
}
else
GST_WARNING_OBJECT (gst_source->sink, "No buffers available for display");
return TRUE;
negotiation_fail:
{
GST_WARNING_OBJECT (gst_source->sink,
"Failed to handle caps. Stopping GSource");
priv->flow_return = GST_FLOW_NOT_NEGOTIATED;
g_mutex_unlock (&gst_source->buffer_lock);
return FALSE;
}
fail_upload:
{
GST_WARNING_OBJECT (gst_source->sink, "Failed to upload buffer");
priv->flow_return = GST_FLOW_ERROR;
gst_buffer_unref (buffer);
return FALSE;
}
}
static GstFlowReturn
gst_app_sink_render (GstBaseSink * psink, GstBuffer * buffer)
{
GstFlowReturn ret;
GstAppSink *appsink = GST_APP_SINK_CAST (psink);
GstAppSinkPrivate *priv = appsink->priv;
gboolean emit;
restart:
g_mutex_lock (&priv->mutex);
if (priv->flushing)
goto flushing;
/* queue holding caps event might have been FLUSHed,
* but caps state still present in pad caps */
if (G_UNLIKELY (!priv->last_caps &&
gst_pad_has_current_caps (GST_BASE_SINK_PAD (psink)))) {
priv->last_caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (psink));
GST_DEBUG_OBJECT (appsink, "activating pad caps %" GST_PTR_FORMAT,
priv->last_caps);
}
GST_DEBUG_OBJECT (appsink, "pushing render buffer %p on queue (%d)",
buffer, priv->num_buffers);
while (priv->max_buffers > 0 && priv->num_buffers >= priv->max_buffers) {
if (priv->drop) {
GstBuffer *old;
/* we need to drop the oldest buffer and try again */
if ((old = dequeue_buffer (appsink))) {
GST_DEBUG_OBJECT (appsink, "dropping old buffer %p", old);
gst_buffer_unref (old);
}
} else {
GST_DEBUG_OBJECT (appsink, "waiting for free space, length %d >= %d",
priv->num_buffers, priv->max_buffers);
if (priv->unlock) {
/* we are asked to unlock, call the wait_preroll method */
g_mutex_unlock (&priv->mutex);
if ((ret = gst_base_sink_wait_preroll (psink)) != GST_FLOW_OK)
goto stopping;
/* we are allowed to continue now */
goto restart;
}
/* wait for a buffer to be removed or flush */
g_cond_wait (&priv->cond, &priv->mutex);
if (priv->flushing)
goto flushing;
}
}
/* we need to ref the buffer when pushing it in the queue */
g_queue_push_tail (priv->queue, gst_buffer_ref (buffer));
priv->num_buffers++;
g_cond_signal (&priv->cond);
emit = priv->emit_signals;
g_mutex_unlock (&priv->mutex);
if (priv->callbacks.new_sample) {
ret = priv->callbacks.new_sample (appsink, priv->user_data);
} else {
ret = GST_FLOW_OK;
if (emit)
g_signal_emit (appsink, gst_app_sink_signals[SIGNAL_NEW_SAMPLE], 0, &ret);
}
return ret;
flushing:
{
GST_DEBUG_OBJECT (appsink, "we are flushing");
g_mutex_unlock (&priv->mutex);
return GST_FLOW_FLUSHING;
}
stopping:
{
GST_DEBUG_OBJECT (appsink, "we are stopping");
return ret;
}
}
/* Buffer management
*
* The buffer_alloc function must either return a buffer with given size and
* caps or create a buffer with different caps attached to the buffer. This
* last option is called reverse negotiation, ie, where the sink suggests a
* different format from the upstream peer.
*
* We try to do reverse negotiation when our geometry changes and we like a
* resized buffer.
*/
static GstFlowReturn
gst_vdp_sink_buffer_alloc (GstBaseSink * bsink, guint64 offset, guint size,
GstCaps * caps, GstBuffer ** buf)
{
VdpSink *vdp_sink;
GstStructure *structure = NULL;
GstFlowReturn ret = GST_FLOW_OK;
gint width, height;
GstCaps *alloc_caps;
gint w_width, w_height;
GError *err;
vdp_sink = GST_VDP_SINK (bsink);
GST_LOG_OBJECT (vdp_sink,
"a buffer of %d bytes was requested with caps %" GST_PTR_FORMAT
" and offset %" G_GUINT64_FORMAT, size, caps, offset);
/* get struct to see what is requested */
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "width", &width) ||
!gst_structure_get_int (structure, "height", &height)) {
GST_WARNING_OBJECT (vdp_sink, "invalid caps for buffer allocation %"
GST_PTR_FORMAT, caps);
ret = GST_FLOW_NOT_NEGOTIATED;
goto beach;
}
alloc_caps = gst_caps_ref (caps);
/* We take the flow_lock because the window might go away */
g_mutex_lock (vdp_sink->flow_lock);
if (!vdp_sink->window) {
g_mutex_unlock (vdp_sink->flow_lock);
goto alloc;
}
/* What is our geometry */
gst_vdp_sink_window_update_geometry (vdp_sink, vdp_sink->window);
w_width = vdp_sink->window->width;
w_height = vdp_sink->window->height;
g_mutex_unlock (vdp_sink->flow_lock);
/* We would like another geometry */
if (width != w_width || height != w_height) {
GstCaps *new_caps, *allowed_caps, *desired_caps;
GstStructure *desired_struct;
/* make a copy of the incomming caps to create the new
* suggestion. We can't use make_writable because we might
* then destroy the original caps which we still need when the
* peer does not accept the suggestion. */
new_caps = gst_caps_copy (caps);
desired_struct = gst_caps_get_structure (new_caps, 0);
GST_DEBUG ("we would love to receive a %dx%d video", w_width, w_height);
gst_structure_set (desired_struct, "width", G_TYPE_INT, w_width, NULL);
gst_structure_set (desired_struct, "height", G_TYPE_INT, w_height, NULL);
allowed_caps = gst_pad_get_caps (GST_BASE_SINK_PAD (vdp_sink));
desired_caps = gst_caps_intersect (new_caps, allowed_caps);
gst_caps_unref (new_caps);
gst_caps_unref (allowed_caps);
/* see if peer accepts our new suggestion, if there is no peer, this
* function returns true. */
if (gst_pad_peer_accept_caps (GST_VIDEO_SINK_PAD (vdp_sink), desired_caps)) {
/* we will not alloc a buffer of the new suggested caps. Make sure
* we also unref this new caps after we set it on the buffer. */
GST_DEBUG ("peer pad accepts our desired caps %" GST_PTR_FORMAT,
desired_caps);
gst_caps_unref (alloc_caps);
alloc_caps = desired_caps;
} else {
GST_DEBUG ("peer pad does not accept our desired caps %" GST_PTR_FORMAT,
desired_caps);
/* we alloc a buffer with the original incomming caps already in the
* width and height variables */
gst_caps_unref (desired_caps);
}
}
alloc:
gst_vdp_buffer_pool_set_caps (vdp_sink->bpool, alloc_caps);
gst_caps_unref (alloc_caps);
err = NULL;
*buf =
GST_BUFFER_CAST (gst_vdp_buffer_pool_get_buffer (vdp_sink->bpool, &err));
if (!*buf) {
gst_vdp_sink_post_error (vdp_sink, err);
return GST_FLOW_ERROR;
}
beach:
return ret;
}
static gboolean
gst_vdp_sink_setcaps (GstBaseSink * bsink, GstCaps * caps)
{
VdpSink *vdp_sink;
GstCaps *allowed_caps;
gboolean ret = TRUE;
GstStructure *structure;
GstCaps *intersection;
gint new_width, new_height;
const GValue *fps;
vdp_sink = GST_VDP_SINK (bsink);
GST_OBJECT_LOCK (vdp_sink);
if (!vdp_sink->device)
return FALSE;
GST_OBJECT_UNLOCK (vdp_sink);
allowed_caps = gst_pad_get_caps (GST_BASE_SINK_PAD (bsink));
GST_DEBUG_OBJECT (vdp_sink,
"sinkconnect possible caps %" GST_PTR_FORMAT " with given caps %"
GST_PTR_FORMAT, allowed_caps, caps);
/* We intersect those caps with our template to make sure they are correct */
intersection = gst_caps_intersect (allowed_caps, caps);
gst_caps_unref (allowed_caps);
GST_DEBUG_OBJECT (vdp_sink, "intersection returned %" GST_PTR_FORMAT,
intersection);
if (gst_caps_is_empty (intersection)) {
gst_caps_unref (intersection);
return FALSE;
}
gst_caps_unref (intersection);
structure = gst_caps_get_structure (caps, 0);
ret &= gst_structure_get_int (structure, "width", &new_width);
ret &= gst_structure_get_int (structure, "height", &new_height);
fps = gst_structure_get_value (structure, "framerate");
ret &= (fps != NULL);
if (!ret)
return FALSE;
GST_VIDEO_SINK_WIDTH (vdp_sink) = new_width;
GST_VIDEO_SINK_HEIGHT (vdp_sink) = new_height;
vdp_sink->fps_n = gst_value_get_fraction_numerator (fps);
vdp_sink->fps_d = gst_value_get_fraction_denominator (fps);
gst_vdp_buffer_pool_set_caps (vdp_sink->bpool, caps);
/* Notify application to set xwindow id now */
g_mutex_lock (vdp_sink->flow_lock);
if (!vdp_sink->window) {
g_mutex_unlock (vdp_sink->flow_lock);
gst_x_overlay_prepare_xwindow_id (GST_X_OVERLAY (vdp_sink));
} else {
g_mutex_unlock (vdp_sink->flow_lock);
}
/* Creating our window and our image */
if (GST_VIDEO_SINK_WIDTH (vdp_sink) <= 0
|| GST_VIDEO_SINK_HEIGHT (vdp_sink) <= 0) {
GST_ELEMENT_ERROR (vdp_sink, CORE, NEGOTIATION, (NULL),
("Invalid image size."));
return FALSE;
}
g_mutex_lock (vdp_sink->flow_lock);
if (!vdp_sink->window) {
vdp_sink->window = gst_vdp_sink_window_new (vdp_sink,
GST_VIDEO_SINK_WIDTH (vdp_sink), GST_VIDEO_SINK_HEIGHT (vdp_sink));
}
g_mutex_unlock (vdp_sink->flow_lock);
return TRUE;
}
static GstFlowReturn
webkit_video_sink_render(GstBaseSink* bsink, GstBuffer* buffer)
{
WebKitVideoSink* sink = WEBKIT_VIDEO_SINK(bsink);
WebKitVideoSinkPrivate* priv = sink->priv;
g_mutex_lock(priv->buffer_mutex);
if (priv->unlocked) {
g_mutex_unlock(priv->buffer_mutex);
return GST_FLOW_OK;
}
// Ignore buffers if the video is already in fullscreen using
// another sink.
if (priv->gstGWorld->isFullscreen()) {
g_mutex_unlock(priv->buffer_mutex);
return GST_FLOW_OK;
}
priv->buffer = gst_buffer_ref(buffer);
// For the unlikely case where the buffer has no caps, the caps
// are implicitely the caps of the pad. This shouldn't happen.
if (G_UNLIKELY(!GST_BUFFER_CAPS(buffer))) {
buffer = priv->buffer = gst_buffer_make_metadata_writable(priv->buffer);
gst_buffer_set_caps(priv->buffer, GST_PAD_CAPS(GST_BASE_SINK_PAD(bsink)));
}
GstCaps *caps = GST_BUFFER_CAPS(buffer);
GstVideoFormat format;
int width, height;
if (G_UNLIKELY(!gst_video_format_parse_caps(caps, &format, &width, &height))) {
gst_buffer_unref(buffer);
g_mutex_unlock(priv->buffer_mutex);
return GST_FLOW_ERROR;
}
// Cairo's ARGB has pre-multiplied alpha while GStreamer's doesn't.
// Here we convert to Cairo's ARGB.
if (format == GST_VIDEO_FORMAT_ARGB || format == GST_VIDEO_FORMAT_BGRA) {
// Because GstBaseSink::render() only owns the buffer reference in the
// method scope we can't use gst_buffer_make_writable() here. Also
// The buffer content should not be changed here because the same buffer
// could be passed multiple times to this method (in theory)
GstBuffer *newBuffer = gst_buffer_try_new_and_alloc(GST_BUFFER_SIZE(buffer));
// Check if allocation failed
if (G_UNLIKELY(!newBuffer)) {
gst_buffer_unref(buffer);
g_mutex_unlock(priv->buffer_mutex);
return GST_FLOW_ERROR;
}
gst_buffer_copy_metadata(newBuffer, buffer, (GstBufferCopyFlags) GST_BUFFER_COPY_ALL);
// We don't use Color::premultipliedARGBFromColor() here because
// one function call per video pixel is just too expensive:
// For 720p/PAL for example this means 1280*720*25=23040000
// function calls per second!
unsigned short alpha;
const guint8 *source = GST_BUFFER_DATA(buffer);
guint8 *destination = GST_BUFFER_DATA(newBuffer);
for (int x = 0; x < height; x++) {
for (int y = 0; y < width; y++) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
alpha = source[3];
destination[0] = (source[0] * alpha + 128) / 255;
destination[1] = (source[1] * alpha + 128) / 255;
destination[2] = (source[2] * alpha + 128) / 255;
destination[3] = alpha;
#else
alpha = source[0];
destination[0] = alpha;
destination[1] = (source[1] * alpha + 128) / 255;
destination[2] = (source[2] * alpha + 128) / 255;
destination[3] = (source[3] * alpha + 128) / 255;
#endif
source += 4;
destination += 4;
}
}
gst_buffer_unref(buffer);
buffer = priv->buffer = newBuffer;
}
// This should likely use a lower priority, but glib currently starves
// lower priority sources.
// See: https://bugzilla.gnome.org/show_bug.cgi?id=610830.
priv->timeout_id = g_timeout_add_full(G_PRIORITY_DEFAULT, 0,
webkit_video_sink_timeout_func,
gst_object_ref(sink),
(GDestroyNotify)gst_object_unref);
g_cond_wait(priv->data_cond, priv->buffer_mutex);
g_mutex_unlock(priv->buffer_mutex);
return GST_FLOW_OK;
}
static GstFlowReturn webkitVideoSinkRender(GstBaseSink* baseSink, GstBuffer* buffer)
{
WebKitVideoSink* sink = WEBKIT_VIDEO_SINK(baseSink);
WebKitVideoSinkPrivate* priv = sink->priv;
g_mutex_lock(priv->bufferMutex);
if (priv->unlocked) {
g_mutex_unlock(priv->bufferMutex);
return GST_FLOW_OK;
}
#if USE(NATIVE_FULLSCREEN_VIDEO)
// Ignore buffers if the video is already in fullscreen using
// another sink.
if (priv->gstGWorld->isFullscreen()) {
g_mutex_unlock(priv->bufferMutex);
return GST_FLOW_OK;
}
#endif
priv->buffer = gst_buffer_ref(buffer);
#ifndef GST_API_VERSION_1
// For the unlikely case where the buffer has no caps, the caps
// are implicitely the caps of the pad. This shouldn't happen.
if (UNLIKELY(!GST_BUFFER_CAPS(buffer))) {
buffer = priv->buffer = gst_buffer_make_metadata_writable(priv->buffer);
gst_buffer_set_caps(priv->buffer, GST_PAD_CAPS(GST_BASE_SINK_PAD(baseSink)));
}
GRefPtr<GstCaps> caps = GST_BUFFER_CAPS(buffer);
#else
GRefPtr<GstCaps> caps;
// The video info structure is valid only if the sink handled an allocation query.
if (GST_VIDEO_INFO_FORMAT(&priv->info) != GST_VIDEO_FORMAT_UNKNOWN)
caps = adoptGRef(gst_video_info_to_caps(&priv->info));
else
caps = priv->currentCaps;
#endif
GstVideoFormat format;
WebCore::IntSize size;
int pixelAspectRatioNumerator, pixelAspectRatioDenominator, stride;
if (!getVideoSizeAndFormatFromCaps(caps.get(), size, format, pixelAspectRatioNumerator, pixelAspectRatioDenominator, stride)) {
gst_buffer_unref(buffer);
g_mutex_unlock(priv->bufferMutex);
return GST_FLOW_ERROR;
}
// Cairo's ARGB has pre-multiplied alpha while GStreamer's doesn't.
// Here we convert to Cairo's ARGB.
if (format == GST_VIDEO_FORMAT_ARGB || format == GST_VIDEO_FORMAT_BGRA) {
// Because GstBaseSink::render() only owns the buffer reference in the
// method scope we can't use gst_buffer_make_writable() here. Also
// The buffer content should not be changed here because the same buffer
// could be passed multiple times to this method (in theory).
GstBuffer* newBuffer = createGstBuffer(buffer);
// Check if allocation failed.
if (UNLIKELY(!newBuffer)) {
g_mutex_unlock(priv->bufferMutex);
return GST_FLOW_ERROR;
}
// We don't use Color::premultipliedARGBFromColor() here because
// one function call per video pixel is just too expensive:
// For 720p/PAL for example this means 1280*720*25=23040000
// function calls per second!
#ifndef GST_API_VERSION_1
const guint8* source = GST_BUFFER_DATA(buffer);
guint8* destination = GST_BUFFER_DATA(newBuffer);
#else
GstMapInfo sourceInfo;
GstMapInfo destinationInfo;
gst_buffer_map(buffer, &sourceInfo, GST_MAP_READ);
const guint8* source = const_cast<guint8*>(sourceInfo.data);
gst_buffer_map(newBuffer, &destinationInfo, GST_MAP_WRITE);
guint8* destination = static_cast<guint8*>(destinationInfo.data);
#endif
for (int x = 0; x < size.height(); x++) {
for (int y = 0; y < size.width(); y++) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
unsigned short alpha = source[3];
destination[0] = (source[0] * alpha + 128) / 255;
destination[1] = (source[1] * alpha + 128) / 255;
destination[2] = (source[2] * alpha + 128) / 255;
destination[3] = alpha;
#else
unsigned short alpha = source[0];
destination[0] = alpha;
destination[1] = (source[1] * alpha + 128) / 255;
destination[2] = (source[2] * alpha + 128) / 255;
destination[3] = (source[3] * alpha + 128) / 255;
#endif
source += 4;
destination += 4;
}
}
#ifdef GST_API_VERSION_1
gst_buffer_unmap(buffer, &sourceInfo);
gst_buffer_unmap(newBuffer, &destinationInfo);
#endif
gst_buffer_unref(buffer);
buffer = priv->buffer = newBuffer;
}
// This should likely use a lower priority, but glib currently starves
// lower priority sources.
// See: https://bugzilla.gnome.org/show_bug.cgi?id=610830.
priv->timeoutId = g_timeout_add_full(G_PRIORITY_DEFAULT, 0, webkitVideoSinkTimeoutCallback,
gst_object_ref(sink), reinterpret_cast<GDestroyNotify>(gst_object_unref));
g_cond_wait(priv->dataCondition, priv->bufferMutex);
g_mutex_unlock(priv->bufferMutex);
return GST_FLOW_OK;
}
static GstCaps *
gst_tinyalsa_sink_getcaps (GstBaseSink * bsink, GstCaps * filter)
{
GstTinyalsaSink *sink = GST_TINYALSA_SINK (bsink);
GstCaps *caps = NULL;
GValue formats = { 0, };
GValue format = { 0, };
struct pcm_params *params = NULL;
struct pcm_mask *mask;
int rate_min, rate_max, channels_min, channels_max;
guint16 m;
GST_DEBUG_OBJECT (sink, "Querying caps");
GST_OBJECT_LOCK (sink);
if (sink->cached_caps) {
GST_DEBUG_OBJECT (sink, "Returning cached caps");
caps = gst_caps_ref (sink->cached_caps);
goto done;
}
if (sink->pcm) {
/* We can't query the device while it's open, so return current caps */
caps = gst_pad_get_current_caps (GST_BASE_SINK_PAD (bsink));
goto done;
}
params = pcm_params_get (sink->card, sink->device, PCM_OUT);
if (!params) {
GST_ERROR_OBJECT (sink, "Could not get PCM params");
goto done;
}
mask = pcm_params_get_mask (params, PCM_PARAM_FORMAT);
m = (mask->bits[1] << 8) | mask->bits[0];
if (!(m & SNDRV_PCM_FORMAT_ANY)) {
GST_ERROR_OBJECT (sink, "Could not find any supported format");
goto done;
}
caps = gst_caps_new_empty_simple ("audio/x-raw");
g_value_init (&formats, GST_TYPE_LIST);
g_value_init (&format, G_TYPE_STRING);
if (m & (1 << SNDRV_PCM_FORMAT_S8)) {
g_value_set_static_string (&format, "S8");
gst_value_list_prepend_value (&formats, &format);
}
if (m & (1 << SNDRV_PCM_FORMAT_S16_LE)) {
g_value_set_static_string (&format, "S16LE");
gst_value_list_prepend_value (&formats, &format);
}
if (m & (1 << SNDRV_PCM_FORMAT_S24_LE)) {
g_value_set_static_string (&format, "S24_32LE");
gst_value_list_prepend_value (&formats, &format);
}
if (m & (1 << SNDRV_PCM_FORMAT_S32_LE)) {
g_value_set_static_string (&format, "S32LE");
gst_value_list_prepend_value (&formats, &format);
}
gst_caps_set_value (caps, "format", &formats);
g_value_unset (&format);
g_value_unset (&formats);
/* This is a bit of a lie, since the device likely only supports some
* standard rates in this range. We should probably filter the range to
* those, standard audio rates but even that isn't guaranteed to be accurate.
*/
rate_min = pcm_params_get_min (params, PCM_PARAM_RATE);
rate_max = pcm_params_get_max (params, PCM_PARAM_RATE);
if (rate_min == rate_max)
gst_caps_set_simple (caps, "rate", G_TYPE_INT, rate_min, NULL);
else
gst_caps_set_simple (caps, "rate", GST_TYPE_INT_RANGE, rate_min, rate_max,
NULL);
channels_min = pcm_params_get_min (params, PCM_PARAM_CHANNELS);
channels_max = pcm_params_get_max (params, PCM_PARAM_CHANNELS);
if (channels_min == channels_max)
gst_caps_set_simple (caps, "channels", G_TYPE_INT, channels_min, NULL);
else
gst_caps_set_simple (caps, "channels", GST_TYPE_INT_RANGE, channels_min,
channels_max, NULL);
gst_caps_replace (&sink->cached_caps, caps);
done:
GST_OBJECT_UNLOCK (sink);
GST_DEBUG_OBJECT (sink, "Got caps %" GST_PTR_FORMAT, caps);
if (caps && filter) {
GstCaps *intersection =
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
caps = intersection;
}
if (params)
pcm_params_free (params);
return caps;
}