/**
* gst_buffer_add_protection_meta:
* @buffer: #GstBuffer holding an encrypted sample, to which protection
* metadata should be added.
* @info: (transfer full): a #GstStructure holding cryptographic
* information relating to the sample contained in @buffer. This
* function takes ownership of @info.
*
* Attaches protection metadata to a #GstBuffer.
*
* Returns: (transfer none): a pointer to the added #GstProtectionMeta if successful; %NULL if
* unsuccessful.
*
* Since: 1.6
*/
GstProtectionMeta *
gst_buffer_add_protection_meta (GstBuffer * buffer, GstStructure * info)
{
GstProtectionMeta *meta;
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
g_return_val_if_fail (info != NULL, NULL);
meta =
(GstProtectionMeta *) gst_buffer_add_meta (buffer,
GST_PROTECTION_META_INFO, NULL);
meta->info = info;
return meta;
}
/**
* gst_buffer_set_qdata:
* @buffer: a #GstBuffer
* @quark: name quark of data structure to set or replace
* @data: (transfer full) (allow-none): a #GstStructure to store with the
* buffer, name must match @quark. Can be NULL to remove an existing
* structure. This function takes ownership of the structure passed.
*
* Set metadata structure for name quark @quark to @data, or remove the
* existing metadata structure by that name in case @data is NULL.
*
* Takes ownership of @data.
*
* Since: 0.10.36
*/
void
gst_buffer_set_qdata (GstBuffer * buffer, GQuark quark, GstStructure * data)
{
GstBufferPrivate *priv;
GList *l;
g_return_if_fail (GST_IS_BUFFER (buffer));
g_return_if_fail (gst_buffer_is_metadata_writable (buffer));
g_return_if_fail (data == NULL || quark == gst_structure_get_name_id (data));
/* locking should not really be required, since the metadata_writable
* check ensures that the caller is the only one holding a ref, so as
* as a second ref is added everything turns read-only */
priv = gst_buffer_ensure_priv (buffer);
if (data) {
gst_structure_set_parent_refcount (data, &buffer->mini_object.refcount);
}
for (l = priv->qdata; l != NULL; l = l->next) {
GstStructure *s = l->data;
if (s->name == quark) {
GST_CAT_LOG (GST_CAT_BUFFER, "Replacing qdata '%s' on buffer %p: "
"%" GST_PTR_FORMAT " => %" GST_PTR_FORMAT, g_quark_to_string (quark),
buffer, s, data);
gst_structure_set_parent_refcount (s, NULL);
gst_structure_free (s);
if (data == NULL)
priv->qdata = g_list_delete_link (priv->qdata, l);
else
l->data = data;
goto done;
}
}
GST_CAT_LOG (GST_CAT_BUFFER, "Set qdata '%s' on buffer %p: %" GST_PTR_FORMAT,
g_quark_to_string (quark), buffer, data);
priv->qdata = g_list_prepend (priv->qdata, data);
done:
return;
}
static void
sink_handoff_float32 (GstElement * element, GstBuffer * buffer, GstPad * pad,
gpointer user_data)
{
gint i;
gfloat *data;
GstCaps *caps;
gint n = GPOINTER_TO_INT (user_data);
fail_unless (GST_IS_BUFFER (buffer));
fail_unless_equals_int (GST_BUFFER_SIZE (buffer),
48000 * 2 * sizeof (gfloat));
fail_unless_equals_int (GST_BUFFER_DURATION (buffer), GST_SECOND);
caps = gst_caps_new_simple ("audio/x-raw-float",
"width", G_TYPE_INT, 32,
"channels", G_TYPE_INT, 2,
"rate", G_TYPE_INT, 48000, "endianness", G_TYPE_INT, G_BYTE_ORDER, NULL);
if (n == 0) {
GstAudioChannelPosition pos[2] =
{ GST_AUDIO_CHANNEL_POSITION_NONE, GST_AUDIO_CHANNEL_POSITION_NONE };
gst_audio_set_channel_positions (gst_caps_get_structure (caps, 0), pos);
} else if (n == 1) {
GstAudioChannelPosition pos[2] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT
};
gst_audio_set_channel_positions (gst_caps_get_structure (caps, 0), pos);
} else if (n == 2) {
GstAudioChannelPosition pos[2] = { GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,
GST_AUDIO_CHANNEL_POSITION_REAR_CENTER
};
gst_audio_set_channel_positions (gst_caps_get_structure (caps, 0), pos);
}
fail_unless (gst_caps_is_equal (caps, GST_BUFFER_CAPS (buffer)));
gst_caps_unref (caps);
data = (gfloat *) GST_BUFFER_DATA (buffer);
for (i = 0; i < 48000 * 2; i += 2) {
fail_unless_equals_float (data[i], -1.0);
fail_unless_equals_float (data[i + 1], 1.0);
}
have_data++;
}
GstVaapiVideoMeta *
gst_buffer_get_vaapi_video_meta (GstBuffer * buffer)
{
GstVaapiVideoMeta *meta;
GstMeta *m;
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
m = gst_buffer_get_meta (buffer, GST_VAAPI_VIDEO_META_API_TYPE);
if (!m)
return NULL;
meta = GST_VAAPI_VIDEO_META_HOLDER (m)->meta;
if (meta)
meta->buffer = buffer;
return meta;
}
gboolean
gst_rdt_buffer_get_first_packet (GstBuffer * buffer, GstRDTPacket * packet)
{
g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
g_return_val_if_fail (packet != NULL, FALSE);
/* init to 0 */
packet->buffer = buffer;
packet->offset = 0;
packet->type = GST_RDT_TYPE_INVALID;
memset (&packet->map, 0, sizeof (GstMapInfo));
if (!read_packet_header (packet))
return FALSE;
return TRUE;
}
static void
_known_source_packet_received (FsStreamTransmitter *st, guint component_id,
GstBuffer *buffer, gpointer user_data)
{
guint stream = GPOINTER_TO_UINT (user_data);
ts_fail_unless (associate_on_source == TRUE,
"Got known-source-packet-received when we shouldn't have");
ts_fail_unless (component_id == 1 || component_id == 2,
"Invalid component id %u", component_id);
ts_fail_unless (GST_IS_BUFFER (buffer), "Invalid buffer received at %p",
buffer);
received_known[stream - 1][component_id - 1]++;
}
void MediaPlayerPrivateGStreamerBase::triggerRepaint(GstBuffer* buffer)
{
g_return_if_fail(GST_IS_BUFFER(buffer));
g_mutex_lock(m_bufferMutex);
gst_buffer_replace(&m_buffer, buffer);
g_mutex_unlock(m_bufferMutex);
#if USE(ACCELERATED_COMPOSITING) && USE(TEXTURE_MAPPER_GL) && !USE(COORDINATED_GRAPHICS)
if (supportsAcceleratedRendering() && m_player->mediaPlayerClient()->mediaPlayerRenderingCanBeAccelerated(m_player) && client()) {
client()->setPlatformLayerNeedsDisplay();
return;
}
#endif
m_player->repaint();
}
/**
* gst_buffer_add_net_control_message_meta:
* @buffer: a #GstBuffer
* @message: a @GSocketControlMessage to attach to @buffer
*
* Attaches @message as metadata in a #GstNetControlMessageMeta to @buffer.
*
* Returns: (transfer none): a #GstNetControlMessageMeta connected to @buffer
*/
GstNetControlMessageMeta *
gst_buffer_add_net_control_message_meta (GstBuffer * buffer,
GSocketControlMessage * message)
{
GstNetControlMessageMeta *meta;
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
g_return_val_if_fail (G_IS_SOCKET_CONTROL_MESSAGE (message), NULL);
meta =
(GstNetControlMessageMeta *) gst_buffer_add_meta (buffer,
GST_NET_CONTROL_MESSAGE_META_INFO, NULL);
meta->message = g_object_ref (message);
return meta;
}
KmsBufferLatencyMeta *
kms_buffer_add_buffer_latency_meta (GstBuffer * buffer, GstClockTime ts,
gboolean valid, KmsMediaType type)
{
KmsBufferLatencyMeta *meta;
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
meta = (KmsBufferLatencyMeta *) gst_buffer_add_meta (buffer,
KMS_BUFFER_LATENCY_META_INFO, NULL);
meta->ts = ts;
meta->valid = valid;
meta->type = type;
return meta;
}
/**
* gst_buffer_add_video_region_of_interest_meta_id:
* @buffer: a #GstBuffer
* @roi_type: Type of the region of interest (e.g. "face")
* @x: X position
* @y: Y position
* @w: width
* @h: height
*
* Attaches #GstVideoRegionOfInterestMeta metadata to @buffer with the given
* parameters.
*
* Returns: (transfer none): the #GstVideoRegionOfInterestMeta on @buffer.
*/
GstVideoRegionOfInterestMeta *
gst_buffer_add_video_region_of_interest_meta_id (GstBuffer * buffer,
GQuark roi_type, guint x, guint y, guint w, guint h)
{
GstVideoRegionOfInterestMeta *meta;
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
meta = (GstVideoRegionOfInterestMeta *) gst_buffer_add_meta (buffer,
GST_VIDEO_REGION_OF_INTEREST_META_INFO, NULL);
meta->roi_type = roi_type;
meta->x = x;
meta->y = y;
meta->w = w;
meta->h = h;
return meta;
}
static void
_known_source_packet_received (FsStreamTransmitter *st, guint component_id,
GstBuffer *buffer, gpointer user_data)
{
ts_fail_unless (associate_on_source == TRUE,
"Got known-source-packet-received when we shouldn't have");
ts_fail_unless (component_id == 1 || component_id == 2,
"Invalid component id %u", component_id);
ts_fail_unless (GST_IS_BUFFER (buffer), "Invalid buffer received at %p",
buffer);
received_known[component_id - 1]++;
GST_LOG ("Known source buffer %d component: %d size: %" G_GSIZE_FORMAT,
received_known[component_id-1], component_id,
gst_buffer_get_size (buffer));
}
static gboolean
_rtpbin_pad_have_data_callback (GstPad *pad, GstMiniObject *miniobj,
gpointer user_data)
{
FsRtpSubStream *self = FS_RTP_SUB_STREAM (user_data);
gboolean ret = TRUE;
gboolean remove = FALSE;
FS_RTP_SESSION_LOCK (self->priv->session);
if (!self->priv->codecbin || !self->codec || !self->priv->caps)
{
ret = FALSE;
}
else if (GST_IS_BUFFER (miniobj))
{
if (!gst_caps_is_equal_fixed (GST_BUFFER_CAPS (miniobj), self->priv->caps))
{
GstCaps *intersect = gst_caps_intersect (GST_BUFFER_CAPS (miniobj),
self->priv->caps);
if (gst_caps_is_empty (intersect))
ret = FALSE;
else
gst_buffer_set_caps (GST_BUFFER (miniobj), self->priv->caps);
gst_caps_unref (intersect);
}
else
{
remove = TRUE;
}
}
if (remove && self->priv->blocking_id)
{
gst_pad_remove_data_probe (pad, self->priv->blocking_id);
self->priv->blocking_id = 0;
}
FS_RTP_SESSION_UNLOCK (self->priv->session);
return ret;
}
/**
* gst_type_find_helper_for_buffer:
* @obj: (allow-none): object doing the typefinding, or %NULL (used for logging)
* @buf: (in) (transfer none): a #GstBuffer with data to typefind
* @prob: (out) (allow-none): location to store the probability of the found
* caps, or %NULL
*
* Tries to find what type of data is contained in the given #GstBuffer, the
* assumption being that the buffer represents the beginning of the stream or
* file.
*
* All available typefinders will be called on the data in order of rank. If
* a typefinding function returns a probability of %GST_TYPE_FIND_MAXIMUM,
* typefinding is stopped immediately and the found caps will be returned
* right away. Otherwise, all available typefind functions will the tried,
* and the caps with the highest probability will be returned, or %NULL if
* the content of the buffer could not be identified.
*
* Free-function: gst_caps_unref
*
* Returns: (transfer full) (nullable): the #GstCaps corresponding to the data,
* or %NULL if no type could be found. The caller should free the caps
* returned with gst_caps_unref().
*/
GstCaps *
gst_type_find_helper_for_buffer (GstObject * obj, GstBuffer * buf,
GstTypeFindProbability * prob)
{
GstCaps *result;
GstMapInfo info;
g_return_val_if_fail (buf != NULL, NULL);
g_return_val_if_fail (GST_IS_BUFFER (buf), NULL);
g_return_val_if_fail (GST_BUFFER_OFFSET (buf) == 0 ||
GST_BUFFER_OFFSET (buf) == GST_BUFFER_OFFSET_NONE, NULL);
if (!gst_buffer_map (buf, &info, GST_MAP_READ))
return NULL;
result = gst_type_find_helper_for_data (obj, info.data, info.size, prob);
gst_buffer_unmap (buf, &info);
return result;
}
static GstBuffer *
dequeue_buffer (GstAppSink * appsink)
{
GstAppSinkPrivate *priv = appsink->priv;
GstBuffer *buffer;
do {
GstMiniObject *obj;
obj = g_queue_pop_head (priv->queue);
if (GST_IS_BUFFER (obj)) {
buffer = GST_BUFFER_CAST (obj);
GST_DEBUG_OBJECT (appsink, "dequeued buffer %p", buffer);
priv->num_buffers--;
break;
} else if (GST_IS_EVENT (obj)) {
GstEvent *event = GST_EVENT_CAST (obj);
switch (GST_EVENT_TYPE (obj)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
GST_DEBUG_OBJECT (appsink, "activating caps %" GST_PTR_FORMAT, caps);
gst_caps_replace (&priv->last_caps, caps);
break;
}
case GST_EVENT_SEGMENT:
gst_event_copy_segment (event, &priv->last_segment);
GST_DEBUG_OBJECT (appsink, "activated segment %" GST_SEGMENT_FORMAT,
&priv->last_segment);
break;
default:
break;
}
gst_mini_object_unref (obj);
}
} while (TRUE);
return buffer;
}
static gboolean
on_video_sink_data_flow (GstPad * pad, GstMiniObject * mini_obj,
gpointer user_data)
{
GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (user_data);
#if 0
if (GST_IS_BUFFER (mini_obj)) {
GstBuffer *buf = GST_BUFFER_CAST (mini_obj);
if (GST_CLOCK_TIME_IS_VALID (self->next_ts)) {
if (GST_BUFFER_TIMESTAMP (buf) <= self->next_ts) {
self->frames_rendered++;
} else {
GST_WARNING_OBJECT (self, "dropping frame : ts %" GST_TIME_FORMAT
" < expected_ts %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
GST_TIME_ARGS (self->next_ts));
self->frames_dropped++;
}
} else {
self->frames_rendered++;
}
} else
#endif
if (GST_IS_EVENT (mini_obj)) {
GstEvent *ev = GST_EVENT_CAST (mini_obj);
if (GST_EVENT_TYPE (ev) == GST_EVENT_QOS) {
GstClockTimeDiff diff;
GstClockTime ts;
gst_event_parse_qos (ev, NULL, &diff, &ts);
self->next_ts = ts + diff;
if (diff <= 0.0) {
self->frames_rendered++;
} else {
self->frames_dropped++;
}
}
}
return TRUE;
}
EXPORT_C
#endif
guint
gst_rtp_buffer_get_payload_len (GstBuffer * buffer)
{
guint len, size;
g_return_val_if_fail (GST_IS_BUFFER (buffer), 0);
g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, 0);
size = GST_BUFFER_SIZE (buffer);
len = size - gst_rtp_buffer_get_header_len (buffer);
if (GST_RTP_HEADER_PADDING (buffer))
len -= GST_BUFFER_DATA (buffer)[size - 1];
return len;
}
TcamStatisticsMeta* gst_buffer_add_tcam_statistics_meta (GstBuffer* buffer,
GstStructure* statistics)
{
g_return_val_if_fail(GST_IS_BUFFER(buffer), nullptr);
g_return_val_if_fail(statistics, nullptr);
TcamStatisticsMeta* meta = (TcamStatisticsMeta*) gst_buffer_add_meta(buffer,
TCAM_STATISTICS_META_INFO,
nullptr);
if (!meta)
{
return nullptr;
}
meta->structure = statistics;
return meta;
}
static void
user_endrow_callback (png_structp png_ptr, png_bytep new_row,
png_uint_32 row_num, int pass)
{
GstPngDec *pngdec = NULL;
pngdec = GST_PNGDEC (png_ptr->io_ptr);
/* FIXME: implement interlaced pictures */
/* If buffer_out doesn't exist, it means buffer_alloc failed, which
* will already have set the return code */
if (GST_IS_BUFFER (pngdec->buffer_out)) {
size_t offset = row_num * pngdec->rowbytes;
GST_LOG ("got row %u, copying in buffer %p at offset %" G_GSIZE_FORMAT,
(guint) row_num, pngdec->buffer_out, offset);
memcpy (GST_BUFFER_DATA (pngdec->buffer_out) + offset, new_row,
pngdec->rowbytes);
pngdec->ret = GST_FLOW_OK;
}
}
EXPORT_C
#endif
GstClockTime
gst_audio_duration_from_pad_buffer (GstPad * pad, GstBuffer * buf)
{
long bytes = 0;
int width = 0;
int channels = 0;
int rate = 0;
GstClockTime length;
const GstCaps *caps = NULL;
GstStructure *structure;
g_assert (GST_IS_BUFFER (buf));
/* get caps of pad */
caps = GST_PAD_CAPS (pad);
if (caps == NULL) {
/* ERROR: could not get caps of pad */
g_warning ("gstaudio: could not get caps of pad %s:%s\n",
GST_DEBUG_PAD_NAME (pad));
length = GST_CLOCK_TIME_NONE;
} else {
structure = gst_caps_get_structure (caps, 0);
bytes = GST_BUFFER_SIZE (buf);
gst_structure_get_int (structure, "width", &width);
gst_structure_get_int (structure, "channels", &channels);
gst_structure_get_int (structure, "rate", &rate);
g_assert (bytes != 0);
g_assert (width != 0);
g_assert (channels != 0);
g_assert (rate != 0);
length = (bytes * 8 * GST_SECOND) / (rate * channels * width);
}
return length;
}
KmsSerializableMeta *
kms_buffer_add_serializable_meta (GstBuffer * buffer, GstStructure * data)
{
KmsSerializableMeta *meta;
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
meta = (KmsSerializableMeta *) gst_buffer_get_meta (buffer,
KMS_SERIALIZABLE_META_API_TYPE);
if (meta != NULL) {
gst_structure_foreach (data, add_fields_to_structure, meta->data);
gst_structure_free (data);
} else {
meta = (KmsSerializableMeta *) gst_buffer_add_meta (buffer,
KMS_SERIALIZABLE_META_INFO, NULL);
meta->data = data;
}
return meta;
}
static gboolean webkitVideoSinkTimeoutCallback(gpointer data)
{
WebKitVideoSink* sink = reinterpret_cast<WebKitVideoSink*>(data);
WebKitVideoSinkPrivate* priv = sink->priv;
g_mutex_lock(priv->bufferMutex);
GstBuffer* buffer = priv->buffer;
priv->buffer = 0;
priv->timeoutId = 0;
if (!buffer || priv->unlocked || UNLIKELY(!GST_IS_BUFFER(buffer))) {
g_cond_signal(priv->dataCondition);
g_mutex_unlock(priv->bufferMutex);
return FALSE;
}
g_signal_emit(sink, webkitVideoSinkSignals[REPAINT_REQUESTED], 0, buffer);
gst_buffer_unref(buffer);
g_cond_signal(priv->dataCondition);
g_mutex_unlock(priv->bufferMutex);
return FALSE;
}
EXPORT_C
#endif
void
gst_rtp_buffer_set_packet_len (GstBuffer * buffer, guint len)
{
guint oldlen;
g_return_if_fail (GST_IS_BUFFER (buffer));
oldlen = GST_BUFFER_SIZE (buffer);
if (oldlen < len) {
guint8 *newdata;
newdata = g_realloc (GST_BUFFER_MALLOCDATA (buffer), len);
GST_BUFFER_MALLOCDATA (buffer) = newdata;
GST_BUFFER_DATA (buffer) = newdata;
}
GST_BUFFER_SIZE (buffer) = len;
/* remove any padding */
GST_RTP_HEADER_PADDING (buffer) = FALSE;
}
static GstFlowReturn
callback_function_sample (GstAppSink * appsink, gpointer p_counter)
{
GstSample *sample;
GstBuffer *buf;
gint *p_int_counter = p_counter;
sample = gst_app_sink_pull_sample (appsink);
buf = gst_sample_get_buffer (sample);
fail_unless (GST_IS_BUFFER (buf));
/* buffer list has 3 buffers in two groups */
switch (*p_int_counter) {
case 0:
fail_unless_equals_int (gst_buffer_get_size (buf), sizeof (gint));
gst_check_buffer_data (buf, &values[0], sizeof (gint));
break;
case 1:
fail_unless_equals_int (gst_buffer_get_size (buf), sizeof (gint));
gst_check_buffer_data (buf, &values[1], sizeof (gint));
break;
case 2:
fail_unless_equals_int (gst_buffer_get_size (buf), sizeof (gint));
gst_check_buffer_data (buf, &values[2], sizeof (gint));
break;
default:
g_warn_if_reached ();
break;
}
gst_sample_unref (sample);
*p_int_counter += 1;
return GST_FLOW_OK;
}
/* Data probe cb to drop everything but count buffers and events */
gboolean
probe_cb (GstPad * pad, GstMiniObject * obj, gpointer user_data)
{
gint count = 0;
gchar *count_type = NULL;
GST_LOG_OBJECT (pad, "got data");
if (GST_IS_BUFFER (obj)) {
count_type = "buffer_count";
} else if (GST_IS_EVENT (obj)) {
count_type = "event_count";
} else {
g_assert_not_reached ();
}
/* increment and store count */
count = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (pad), count_type));
count++;
g_object_set_data (G_OBJECT (pad), count_type, GINT_TO_POINTER (count));
/* drop everything */
return FALSE;
}
static GstBuffer*
gst_goo_decspark_codec_data_processing (GstGooVideoFilter *filter, GstBuffer *buffer)
{
GstGooDecSpark *self = GST_GOO_DECSPARK (filter);
if (GST_IS_BUFFER (GST_GOO_VIDEODEC(self)->video_header))
{
GST_DEBUG_OBJECT (self, "Adding SPARK header info to buffer");
GstBuffer *new_buf = gst_buffer_merge (GST_BUFFER (GST_GOO_VIDEODEC(self)->video_header), GST_BUFFER (buffer));
/* gst_buffer_merge() will end up putting video_header's timestamp on
* the new buffer, but actually we want buf's timestamp:
*/
GST_BUFFER_TIMESTAMP (new_buf) = GST_BUFFER_TIMESTAMP (buffer);
buffer = new_buf;
gst_buffer_unref (GST_GOO_VIDEODEC(self)->video_header);
}
return buffer;
}
/**
* gst_adapter_push:
* @adapter: a #GstAdapter
* @buf: a #GstBuffer to add to queue in the adapter
*
* Adds the data from @buf to the data stored inside @adapter and takes
* ownership of the buffer.
*/
void
gst_adapter_push (GstAdapter * adapter, GstBuffer * buf)
{
guint size;
g_return_if_fail (GST_IS_ADAPTER (adapter));
g_return_if_fail (GST_IS_BUFFER (buf));
size = GST_BUFFER_SIZE (buf);
adapter->size += size;
/* Note: merging buffers at this point is premature. */
if (G_UNLIKELY (adapter->buflist == NULL)) {
GST_LOG_OBJECT (adapter, "pushing first %u bytes", size);
adapter->buflist = adapter->buflist_end = g_slist_append (NULL, buf);
update_timestamp (adapter, buf);
} else {
/* Otherwise append to the end, and advance our end pointer */
GST_LOG_OBJECT (adapter, "pushing %u bytes at end, size now %u", size,
adapter->size);
adapter->buflist_end = g_slist_append (adapter->buflist_end, buf);
adapter->buflist_end = g_slist_next (adapter->buflist_end);
}
}
static void
gst_rfc2250_enc_loop (GstElement * element)
{
GstRFC2250Enc *enc = GST_RFC2250_ENC (element);
GstData *data;
guint id;
gboolean mpeg2;
data = gst_mpeg_packetize_read (enc->packetize);
id = GST_MPEG_PACKETIZE_ID (enc->packetize);
mpeg2 = GST_MPEG_PACKETIZE_IS_MPEG2 (enc->packetize);
if (GST_IS_BUFFER (data)) {
GstBuffer *buffer = GST_BUFFER (data);
GST_DEBUG ("rfc2250enc: have chunk 0x%02X", id);
switch (id) {
case SEQUENCE_START_CODE:
gst_rfc2250_enc_new_buffer (enc);
enc->flags |= ENC_HAVE_SEQ;
break;
case GOP_START_CODE:
if (enc->flags & ENC_HAVE_DATA) {
gst_rfc2250_enc_new_buffer (enc);
}
enc->flags |= ENC_HAVE_GOP;
break;
case PICTURE_START_CODE:
if (enc->flags & ENC_HAVE_DATA) {
gst_rfc2250_enc_new_buffer (enc);
}
enc->flags |= ENC_HAVE_PIC;
break;
case EXT_START_CODE:
case USER_START_CODE:
case SEQUENCE_ERROR_START_CODE:
case SEQUENCE_END_START_CODE:
break;
default:
/* do this here because of the long range */
if (id >= SLICE_MIN_START_CODE && id <= SLICE_MAX_START_CODE) {
enc->flags |= ENC_HAVE_DATA;
gst_rfc2250_enc_add_slice (enc, buffer);
buffer = NULL;
break;
}
break;
}
if (buffer) {
gst_buffer_merge (enc->packet, buffer);
enc->remaining -= GST_BUFFER_SIZE (buffer);
gst_buffer_unref (buffer);
}
} else {
if (enc->packet) {
gst_pad_push (enc->srcpad, GST_DATA (enc->packet));
enc->packet = NULL;
enc->flags = 0;
enc->remaining = enc->MTU;
}
gst_pad_event_default (enc->sinkpad, GST_EVENT (data));
}
}
static GstFlowReturn
gst_app_src_push_buffer_full (GstAppSrc * appsrc, GstBuffer * buffer,
gboolean steal_ref)
{
gboolean first = TRUE;
GstAppSrcPrivate *priv;
g_return_val_if_fail (GST_IS_APP_SRC (appsrc), GST_FLOW_ERROR);
g_return_val_if_fail (GST_IS_BUFFER (buffer), GST_FLOW_ERROR);
priv = appsrc->priv;
g_mutex_lock (&priv->mutex);
while (TRUE) {
/* can't accept buffers when we are flushing or EOS */
if (priv->flushing)
goto flushing;
if (priv->is_eos)
goto eos;
if (priv->max_bytes && priv->queued_bytes >= priv->max_bytes) {
GST_DEBUG_OBJECT (appsrc,
"queue filled (%" G_GUINT64_FORMAT " >= %" G_GUINT64_FORMAT ")",
priv->queued_bytes, priv->max_bytes);
if (first) {
gboolean emit;
emit = priv->emit_signals;
/* only signal on the first push */
g_mutex_unlock (&priv->mutex);
if (priv->callbacks.enough_data)
priv->callbacks.enough_data (appsrc, priv->user_data);
else if (emit)
g_signal_emit (appsrc, gst_app_src_signals[SIGNAL_ENOUGH_DATA], 0,
NULL);
g_mutex_lock (&priv->mutex);
/* continue to check for flushing/eos after releasing the lock */
first = FALSE;
continue;
}
if (priv->block) {
GST_DEBUG_OBJECT (appsrc, "waiting for free space");
/* we are filled, wait until a buffer gets popped or when we
* flush. */
g_cond_wait (&priv->cond, &priv->mutex);
} else {
/* no need to wait for free space, we just pump more data into the
* queue hoping that the caller reacts to the enough-data signal and
* stops pushing buffers. */
break;
}
} else
break;
}
GST_DEBUG_OBJECT (appsrc, "queueing buffer %p", buffer);
if (!steal_ref)
gst_buffer_ref (buffer);
g_queue_push_tail (priv->queue, buffer);
priv->queued_bytes += gst_buffer_get_size (buffer);
g_cond_broadcast (&priv->cond);
g_mutex_unlock (&priv->mutex);
return GST_FLOW_OK;
/* ERRORS */
flushing:
{
GST_DEBUG_OBJECT (appsrc, "refuse buffer %p, we are flushing", buffer);
if (steal_ref)
gst_buffer_unref (buffer);
g_mutex_unlock (&priv->mutex);
return GST_FLOW_FLUSHING;
}
eos:
{
GST_DEBUG_OBJECT (appsrc, "refuse buffer %p, we are EOS", buffer);
if (steal_ref)
gst_buffer_unref (buffer);
g_mutex_unlock (&priv->mutex);
return GST_FLOW_EOS;
}
}
static gboolean
handle_queued_objects (APP_STATE_T * state)
{
GstMiniObject *object = NULL;
g_mutex_lock (state->queue_lock);
if (state->flushing) {
g_cond_broadcast (state->cond);
goto beach;
} else if (g_async_queue_length (state->queue) == 0) {
goto beach;
}
if ((object = g_async_queue_try_pop (state->queue))) {
if (GST_IS_BUFFER (object)) {
GstBuffer *buffer = GST_BUFFER_CAST (object);
update_image (state, buffer);
render_scene (state);
gst_buffer_unref (buffer);
if (!SYNC_BUFFERS) {
object = NULL;
}
} else if (GST_IS_QUERY (object)) {
GstQuery *query = GST_QUERY_CAST (object);
GstStructure *s = (GstStructure *) gst_query_get_structure (query);
if (gst_structure_has_name (s, "eglglessink-allocate-eglimage")) {
GstBuffer *buffer;
GstVideoFormat format;
gint width, height;
GValue v = { 0, };
if (!gst_structure_get_enum (s, "format", GST_TYPE_VIDEO_FORMAT,
(gint *) & format)
|| !gst_structure_get_int (s, "width", &width)
|| !gst_structure_get_int (s, "height", &height)) {
g_assert_not_reached ();
}
buffer =
gst_egl_allocate_eglimage (state,
GST_EGL_IMAGE_BUFFER_POOL (state->pool)->allocator, format,
width, height);
g_value_init (&v, G_TYPE_POINTER);
g_value_set_pointer (&v, buffer);
gst_structure_set_value (s, "buffer", &v);
g_value_unset (&v);
} else {
g_assert_not_reached ();
}
} else if (GST_IS_EVENT (object)) {
GstEvent *event = GST_EVENT_CAST (object);
g_print ("\nevent %p %s\n", event,
gst_event_type_get_name (GST_EVENT_TYPE (event)));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
flush_internal (state);
break;
default:
break;
}
gst_event_unref (event);
object = NULL;
}
}
if (object) {
state->popped_obj = object;
g_cond_broadcast (state->cond);
}
beach:
g_mutex_unlock (state->queue_lock);
return FALSE;
}
EXPORT_C
#endif
GstBuffer *
gst_audio_buffer_clip (GstBuffer * buffer, GstSegment * segment, gint rate,
gint frame_size)
{
GstBuffer *ret;
GstClockTime timestamp = GST_CLOCK_TIME_NONE, duration = GST_CLOCK_TIME_NONE;
guint64 offset = GST_BUFFER_OFFSET_NONE, offset_end = GST_BUFFER_OFFSET_NONE;
guint8 *data;
guint size;
gboolean change_duration = TRUE, change_offset = TRUE, change_offset_end =
TRUE;
g_return_val_if_fail (segment->format == GST_FORMAT_TIME ||
segment->format == GST_FORMAT_DEFAULT, buffer);
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
if (!GST_BUFFER_TIMESTAMP_IS_VALID (buffer))
/* No timestamp - assume the buffer is completely in the segment */
return buffer;
/* Get copies of the buffer metadata to change later.
* Calculate the missing values for the calculations,
* they won't be changed later though. */
data = GST_BUFFER_DATA (buffer);
size = GST_BUFFER_SIZE (buffer);
timestamp = GST_BUFFER_TIMESTAMP (buffer);
if (GST_BUFFER_DURATION_IS_VALID (buffer)) {
duration = GST_BUFFER_DURATION (buffer);
} else {
change_duration = FALSE;
duration = gst_util_uint64_scale (size / frame_size, GST_SECOND, rate);
}
if (GST_BUFFER_OFFSET_IS_VALID (buffer)) {
offset = GST_BUFFER_OFFSET (buffer);
} else {
change_offset = FALSE;
offset = 0;
}
if (GST_BUFFER_OFFSET_END_IS_VALID (buffer)) {
offset_end = GST_BUFFER_OFFSET_END (buffer);
} else {
change_offset_end = FALSE;
offset_end = offset + size / frame_size;
}
if (segment->format == GST_FORMAT_TIME) {
/* Handle clipping for GST_FORMAT_TIME */
gint64 start, stop, cstart, cstop, diff;
start = timestamp;
stop = timestamp + duration;
if (gst_segment_clip (segment, GST_FORMAT_TIME,
start, stop, &cstart, &cstop)) {
diff = cstart - start;
if (diff > 0) {
timestamp = cstart;
if (change_duration)
duration -= diff;
diff = gst_util_uint64_scale (diff, rate, GST_SECOND);
if (change_offset)
offset += diff;
data += diff * frame_size;
size -= diff * frame_size;
}
diff = stop - cstop;
if (diff > 0) {
/* duration is always valid if stop is valid */
duration -= diff;
diff = gst_util_uint64_scale (diff, rate, GST_SECOND);
if (change_offset_end)
offset_end -= diff;
size -= diff * frame_size;
}
} else {
gst_buffer_unref (buffer);
return NULL;
}
} else {
/* Handle clipping for GST_FORMAT_DEFAULT */
gint64 start, stop, cstart, cstop, diff;
g_return_val_if_fail (GST_BUFFER_OFFSET_IS_VALID (buffer), buffer);
start = offset;
stop = offset_end;
if (gst_segment_clip (segment, GST_FORMAT_DEFAULT,
start, stop, &cstart, &cstop)) {
diff = cstart - start;
if (diff > 0) {
offset = cstart;
timestamp = gst_util_uint64_scale (cstart, GST_SECOND, rate);
if (change_duration)
duration -= gst_util_uint64_scale (diff, GST_SECOND, rate);
data += diff * frame_size;
size -= diff * frame_size;
}
diff = stop - cstop;
if (diff > 0) {
offset_end = cstop;
if (change_duration)
duration -= gst_util_uint64_scale (diff, GST_SECOND, rate);
size -= diff * frame_size;
}
} else {
gst_buffer_unref (buffer);
return NULL;
}
}
/* Get a metadata writable buffer and apply all changes */
ret = gst_buffer_make_metadata_writable (buffer);
GST_BUFFER_TIMESTAMP (ret) = timestamp;
GST_BUFFER_SIZE (ret) = size;
GST_BUFFER_DATA (ret) = data;
if (change_duration)
GST_BUFFER_DURATION (ret) = duration;
if (change_offset)
GST_BUFFER_OFFSET (ret) = offset;
if (change_offset_end)
GST_BUFFER_OFFSET_END (ret) = offset_end;
return ret;
}
