static void
gst_bus_dispose (GObject * object)
{
GstBus *bus = GST_BUS (object);
if (bus->priv->queue) {
GstMessage *message;
g_mutex_lock (&bus->priv->queue_lock);
do {
message = gst_atomic_queue_pop (bus->priv->queue);
if (message)
gst_message_unref (message);
} while (message != NULL);
gst_atomic_queue_unref (bus->priv->queue);
bus->priv->queue = NULL;
g_mutex_unlock (&bus->priv->queue_lock);
g_mutex_clear (&bus->priv->queue_lock);
if (bus->priv->poll)
gst_poll_free (bus->priv->poll);
bus->priv->poll = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void clear_packet_queue(GstAtomicQueue *queue)
{
GstDataQueueItem *item;
while ((item = gst_atomic_queue_pop(queue))) {
item->destroy(item);
}
}
static GstFlowReturn
default_acquire_buffer (GstBufferPool * pool, GstBuffer ** buffer,
GstBufferPoolAcquireParams * params)
{
GstFlowReturn result;
GstBufferPoolPrivate *priv = pool->priv;
while (TRUE) {
if (G_UNLIKELY (GST_BUFFER_POOL_IS_FLUSHING (pool)))
goto flushing;
/* try to get a buffer from the queue */
*buffer = gst_atomic_queue_pop (priv->queue);
if (G_LIKELY (*buffer)) {
gst_poll_read_control (priv->poll);
result = GST_FLOW_OK;
GST_LOG_OBJECT (pool, "acquired buffer %p", *buffer);
break;
}
/* no buffer, try to allocate some more */
GST_LOG_OBJECT (pool, "no buffer, trying to allocate");
result = do_alloc_buffer (pool, buffer, NULL);
if (G_LIKELY (result == GST_FLOW_OK))
/* we have a buffer, return it */
break;
if (G_UNLIKELY (result != GST_FLOW_EOS))
/* something went wrong, return error */
break;
/* check if we need to wait */
if (params && (params->flags & GST_BUFFER_POOL_ACQUIRE_FLAG_DONTWAIT)) {
GST_LOG_OBJECT (pool, "no more buffers");
break;
}
/* now we release the control socket, we wait for a buffer release or
* flushing */
gst_poll_read_control (pool->priv->poll);
GST_LOG_OBJECT (pool, "waiting for free buffers or flushing");
gst_poll_wait (priv->poll, GST_CLOCK_TIME_NONE);
gst_poll_write_control (pool->priv->poll);
}
return result;
/* ERRORS */
flushing:
{
GST_DEBUG_OBJECT (pool, "we are flushing");
return GST_FLOW_FLUSHING;
}
}
/* must be called with the lock */
static gboolean
default_stop (GstBufferPool * pool)
{
GstBufferPoolPrivate *priv = pool->priv;
GstBuffer *buffer;
/* clear the pool */
while ((buffer = gst_atomic_queue_pop (priv->queue))) {
gst_poll_read_control (priv->poll);
do_free_buffer (pool, buffer);
}
return priv->cur_buffers == 0;
}
static void approve_transmit_cb(guint stream_id, GstScreamQueue *self) {
GstScreamDataQueueRtpItem *item;
GstScreamStream *stream;
g_rw_lock_reader_lock(&self->lock);
stream = g_hash_table_lookup(self->streams, GUINT_TO_POINTER(stream_id));
g_rw_lock_reader_unlock(&self->lock);
if ((item = gst_atomic_queue_pop(stream->packet_queue))) {
stream->enqueued_payload_size -= item->rtp_payload_size;
stream->enqueued_packets--;
GST_LOG_OBJECT(self, "approving: pt = %u, seq: %u, pass: %u",
item->rtp_pt, item->rtp_seq, self->pass_through);
gst_data_queue_push(self->approved_packets, (GstDataQueueItem *)item);
} else
GST_LOG_OBJECT(self, "Got approve callback on an empty queue, or flushing");
}
GstV4l2Return
gst_v4l2_allocator_stop (GstV4l2Allocator * allocator)
{
GstV4l2Object *obj = allocator->obj;
struct v4l2_requestbuffers breq = { 0, obj->type, allocator->memory };
gint i = 0;
GstV4l2Return ret = GST_V4L2_OK;
GST_DEBUG_OBJECT (allocator, "stop allocator");
GST_OBJECT_LOCK (allocator);
if (!g_atomic_int_get (&allocator->active))
goto done;
if (gst_atomic_queue_length (allocator->free_queue) != allocator->count) {
GST_DEBUG_OBJECT (allocator, "allocator is still in use");
ret = GST_V4L2_BUSY;
goto done;
}
while (gst_atomic_queue_pop (allocator->free_queue)) {
/* nothing */
};
for (i = 0; i < allocator->count; i++) {
GstV4l2MemoryGroup *group = allocator->groups[i];
allocator->groups[i] = NULL;
if (group)
gst_v4l2_memory_group_free (group);
}
/* Not all drivers support rebufs(0), so warn only */
if (obj->ioctl (obj->video_fd, VIDIOC_REQBUFS, &breq) < 0)
GST_WARNING_OBJECT (allocator,
"error releasing buffers buffers: %s", g_strerror (errno));
allocator->count = 0;
g_atomic_int_set (&allocator->active, FALSE);
done:
GST_OBJECT_UNLOCK (allocator);
return ret;
}
/* Flush */
static void Flush( decoder_t *p_dec )
{
decoder_sys_t *p_sys = p_dec->p_sys;
GstBuffer *p_buffer;
gboolean b_ret;
/* Send a new segment event. Seeking position is
* irrelevant in this case, as the main motive for a
* seek here, is to tell the elements to start flushing
* and start accepting buffers from a new time segment */
b_ret = gst_element_seek_simple( p_sys->p_decoder,
GST_FORMAT_BYTES, GST_SEEK_FLAG_FLUSH, 0 );
msg_Dbg( p_dec, "new segment event : %d", b_ret );
/* flush the output buffers from the queue */
while( ( p_buffer = gst_atomic_queue_pop( p_sys->p_que ) ) )
gst_buffer_unref( p_buffer );
p_sys->b_prerolled = false;
}
/* must be called with the lock */
static gboolean
default_stop (GstBufferPool * pool)
{
GstBufferPoolPrivate *priv = pool->priv;
GstBuffer *buffer;
GstBufferPoolClass *pclass;
pclass = GST_BUFFER_POOL_GET_CLASS (pool);
/* clear the pool */
while ((buffer = gst_atomic_queue_pop (priv->queue))) {
GST_LOG_OBJECT (pool, "freeing %p", buffer);
gst_poll_read_control (priv->poll);
if (G_LIKELY (pclass->free_buffer))
pclass->free_buffer (pool, buffer);
}
priv->cur_buffers = 0;
return TRUE;
}
static GstV4l2MemoryGroup *
gst_v4l2_allocator_alloc (GstV4l2Allocator * allocator)
{
GstV4l2MemoryGroup *group;
if (!g_atomic_int_get (&allocator->active))
return NULL;
group = gst_atomic_queue_pop (allocator->free_queue);
if (group == NULL) {
if (allocator->can_allocate) {
group = gst_v4l2_allocator_create_buf (allocator);
/* Don't hammer on CREATE_BUFS */
if (group == NULL)
allocator->can_allocate = FALSE;
}
}
return group;
}
/* must be called with the lock */
static gboolean
default_stop (GstBufferPool * pool)
{
GstBufferPoolPrivate *priv = pool->priv;
GstBuffer *buffer;
/* clear the pool */
while ((buffer = gst_atomic_queue_pop (priv->queue))) {
while (!gst_poll_read_control (priv->poll)) {
if (errno == EWOULDBLOCK) {
/* We put the buffer into the queue but did not finish writing control
* yet, let's wait a bit and retry */
g_thread_yield ();
continue;
} else {
/* Critical error but GstPoll already complained */
break;
}
}
do_free_buffer (pool, buffer);
}
return priv->cur_buffers == 0;
}
/**
* gst_bus_timed_pop_filtered:
* @bus: a #GstBus to pop from
* @timeout: a timeout in nanoseconds, or GST_CLOCK_TIME_NONE to wait forever
* @types: message types to take into account, GST_MESSAGE_ANY for any type
*
* Get a message from the bus whose type matches the message type mask @types,
* waiting up to the specified timeout (and discarding any messages that do not
* match the mask provided).
*
* If @timeout is 0, this function behaves like gst_bus_pop_filtered(). If
* @timeout is #GST_CLOCK_TIME_NONE, this function will block forever until a
* matching message was posted on the bus.
*
* Returns: (transfer full) (nullable): a #GstMessage matching the
* filter in @types, or %NULL if no matching message was found on
* the bus until the timeout expired. The message is taken from
* the bus and needs to be unreffed with gst_message_unref() after
* usage.
*
* MT safe.
*/
GstMessage *
gst_bus_timed_pop_filtered (GstBus * bus, GstClockTime timeout,
GstMessageType types)
{
GstMessage *message;
GTimeVal now, then;
gboolean first_round = TRUE;
GstClockTime elapsed = 0;
g_return_val_if_fail (GST_IS_BUS (bus), NULL);
g_return_val_if_fail (types != 0, NULL);
g_return_val_if_fail (timeout == 0 || bus->priv->poll != NULL, NULL);
g_mutex_lock (&bus->priv->queue_lock);
while (TRUE) {
gint ret;
GST_LOG_OBJECT (bus, "have %d messages",
gst_atomic_queue_length (bus->priv->queue));
while ((message = gst_atomic_queue_pop (bus->priv->queue))) {
if (bus->priv->poll) {
while (!gst_poll_read_control (bus->priv->poll)) {
if (errno == EWOULDBLOCK) {
/* Retry, this can happen if pushing to the queue has finished,
* popping here succeeded but writing control did not finish
* before we got to this line. */
/* Give other threads the chance to do something */
g_thread_yield ();
continue;
} else {
/* This is a real error and means that either the bus is in an
* inconsistent state, or the GstPoll is invalid. GstPoll already
* prints a critical warning about this, no need to do that again
* ourselves */
break;
}
}
}
GST_DEBUG_OBJECT (bus, "got message %p, %s from %s, type mask is %u",
message, GST_MESSAGE_TYPE_NAME (message),
GST_MESSAGE_SRC_NAME (message), (guint) types);
if ((GST_MESSAGE_TYPE (message) & types) != 0) {
/* Extra check to ensure extended types don't get matched unless
* asked for */
if ((!GST_MESSAGE_TYPE_IS_EXTENDED (message))
|| (types & GST_MESSAGE_EXTENDED)) {
/* exit the loop, we have a message */
goto beach;
}
}
GST_DEBUG_OBJECT (bus, "discarding message, does not match mask");
gst_message_unref (message);
message = NULL;
}
/* no need to wait, exit loop */
if (timeout == 0)
break;
else if (timeout != GST_CLOCK_TIME_NONE) {
if (first_round) {
g_get_current_time (&then);
first_round = FALSE;
} else {
g_get_current_time (&now);
elapsed = GST_TIMEVAL_TO_TIME (now) - GST_TIMEVAL_TO_TIME (then);
if (elapsed > timeout)
break;
}
}
/* only here in timeout case */
g_assert (bus->priv->poll);
g_mutex_unlock (&bus->priv->queue_lock);
ret = gst_poll_wait (bus->priv->poll, timeout - elapsed);
g_mutex_lock (&bus->priv->queue_lock);
if (ret == 0) {
GST_INFO_OBJECT (bus, "timed out, breaking loop");
break;
} else {
GST_INFO_OBJECT (bus, "we got woken up, recheck for message");
}
}
beach:
g_mutex_unlock (&bus->priv->queue_lock);
return message;
}
/**
* gst_bus_timed_pop_filtered:
* @bus: a #GstBus to pop from
* @timeout: a timeout in nanoseconds, or GST_CLOCK_TIME_NONE to wait forever
* @types: message types to take into account, GST_MESSAGE_ANY for any type
*
* Get a message from the bus whose type matches the message type mask @types,
* waiting up to the specified timeout (and discarding any messages that do not
* match the mask provided).
*
* If @timeout is 0, this function behaves like gst_bus_pop_filtered(). If
* @timeout is #GST_CLOCK_TIME_NONE, this function will block forever until a
* matching message was posted on the bus.
*
* Returns: (transfer full) (nullable): a #GstMessage matching the
* filter in @types, or %NULL if no matching message was found on
* the bus until the timeout expired. The message is taken from
* the bus and needs to be unreffed with gst_message_unref() after
* usage.
*
* MT safe.
*/
GstMessage *
gst_bus_timed_pop_filtered (GstBus * bus, GstClockTime timeout,
GstMessageType types)
{
GstMessage *message;
GTimeVal now, then;
gboolean first_round = TRUE;
GstClockTime elapsed = 0;
g_return_val_if_fail (GST_IS_BUS (bus), NULL);
g_return_val_if_fail (types != 0, NULL);
g_return_val_if_fail (timeout == 0 || bus->priv->poll != NULL, NULL);
g_mutex_lock (&bus->priv->queue_lock);
while (TRUE) {
gint ret;
GST_LOG_OBJECT (bus, "have %d messages",
gst_atomic_queue_length (bus->priv->queue));
while ((message = gst_atomic_queue_pop (bus->priv->queue))) {
if (bus->priv->poll)
gst_poll_read_control (bus->priv->poll);
GST_DEBUG_OBJECT (bus, "got message %p, %s from %s, type mask is %u",
message, GST_MESSAGE_TYPE_NAME (message),
GST_MESSAGE_SRC_NAME (message), (guint) types);
if ((GST_MESSAGE_TYPE (message) & types) != 0) {
/* Extra check to ensure extended types don't get matched unless
* asked for */
if ((!GST_MESSAGE_TYPE_IS_EXTENDED (message))
|| (types & GST_MESSAGE_EXTENDED)) {
/* exit the loop, we have a message */
goto beach;
}
}
GST_DEBUG_OBJECT (bus, "discarding message, does not match mask");
gst_message_unref (message);
message = NULL;
}
/* no need to wait, exit loop */
if (timeout == 0)
break;
else if (timeout != GST_CLOCK_TIME_NONE) {
if (first_round) {
g_get_current_time (&then);
first_round = FALSE;
} else {
g_get_current_time (&now);
elapsed = GST_TIMEVAL_TO_TIME (now) - GST_TIMEVAL_TO_TIME (then);
if (elapsed > timeout)
break;
}
}
/* only here in timeout case */
g_assert (bus->priv->poll);
g_mutex_unlock (&bus->priv->queue_lock);
ret = gst_poll_wait (bus->priv->poll, timeout - elapsed);
g_mutex_lock (&bus->priv->queue_lock);
if (ret == 0) {
GST_INFO_OBJECT (bus, "timed out, breaking loop");
break;
} else {
GST_INFO_OBJECT (bus, "we got woken up, recheck for message");
}
}
beach:
g_mutex_unlock (&bus->priv->queue_lock);
return message;
}
static GstFlowReturn
default_acquire_buffer (GstBufferPool * pool, GstBuffer ** buffer,
GstBufferPoolAcquireParams * params)
{
GstFlowReturn result;
GstBufferPoolPrivate *priv = pool->priv;
while (TRUE) {
if (G_UNLIKELY (GST_BUFFER_POOL_IS_FLUSHING (pool)))
goto flushing;
/* try to get a buffer from the queue */
*buffer = gst_atomic_queue_pop (priv->queue);
if (G_LIKELY (*buffer)) {
while (!gst_poll_read_control (priv->poll)) {
if (errno == EWOULDBLOCK) {
/* We put the buffer into the queue but did not finish writing control
* yet, let's wait a bit and retry */
g_thread_yield ();
continue;
} else {
/* Critical error but GstPoll already complained */
break;
}
}
result = GST_FLOW_OK;
GST_LOG_OBJECT (pool, "acquired buffer %p", *buffer);
break;
}
/* no buffer, try to allocate some more */
GST_LOG_OBJECT (pool, "no buffer, trying to allocate");
result = do_alloc_buffer (pool, buffer, params);
if (G_LIKELY (result == GST_FLOW_OK))
/* we have a buffer, return it */
break;
if (G_UNLIKELY (result != GST_FLOW_EOS))
/* something went wrong, return error */
break;
/* check if we need to wait */
if (params && (params->flags & GST_BUFFER_POOL_ACQUIRE_FLAG_DONTWAIT)) {
GST_LOG_OBJECT (pool, "no more buffers");
break;
}
/* now we release the control socket, we wait for a buffer release or
* flushing */
if (!gst_poll_read_control (pool->priv->poll)) {
if (errno == EWOULDBLOCK) {
/* This means that we have two threads trying to allocate buffers
* already, and the other one already got the wait token. This
* means that we only have to wait for the poll now and not write the
* token afterwards: we will be woken up once the other thread is
* woken up and that one will write the wait token it removed */
GST_LOG_OBJECT (pool, "waiting for free buffers or flushing");
gst_poll_wait (priv->poll, GST_CLOCK_TIME_NONE);
} else {
/* This is a critical error, GstPoll already gave a warning */
result = GST_FLOW_ERROR;
break;
}
} else {
/* We're the first thread waiting, we got the wait token and have to
* write it again later
* OR
* We're a second thread and just consumed the flush token and block all
* other threads, in which case we must not wait and give it back
* immediately */
if (!GST_BUFFER_POOL_IS_FLUSHING (pool)) {
GST_LOG_OBJECT (pool, "waiting for free buffers or flushing");
gst_poll_wait (priv->poll, GST_CLOCK_TIME_NONE);
}
gst_poll_write_control (pool->priv->poll);
}
}
return result;
/* ERRORS */
flushing:
{
GST_DEBUG_OBJECT (pool, "we are flushing");
return GST_FLOW_FLUSHING;
}
}
/* Close the decoder instance */
static void CloseDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = ( decoder_t* )p_this;
decoder_sys_t *p_sys = p_dec->p_sys;
gboolean b_running = p_sys->b_running;
if( b_running )
{
GstMessage *p_msg;
GstFlowReturn i_ret;
p_sys->b_running = false;
/* Send EOS to the pipeline */
i_ret = gst_app_src_end_of_stream(
GST_APP_SRC_CAST( p_sys->p_decode_src ));
msg_Dbg( p_dec, "app src eos: %s", gst_flow_get_name( i_ret ) );
/* and catch it on the bus with a timeout */
p_msg = gst_bus_timed_pop_filtered( p_sys->p_bus,
2000000000ULL, GST_MESSAGE_EOS | GST_MESSAGE_ERROR );
if( p_msg )
{
switch( GST_MESSAGE_TYPE( p_msg ) ){
case GST_MESSAGE_EOS:
msg_Dbg( p_dec, "got eos" );
break;
default:
p_dec->b_error = default_msg_handler( p_dec, p_msg );
if( p_dec->b_error )
msg_Err( p_dec, "pipeline may not close gracefully" );
break;
}
gst_message_unref( p_msg );
}
else
msg_Warn( p_dec,
"no message, pipeline may not close gracefully" );
}
/* Remove any left-over buffers from the queue */
if( p_sys->p_que )
{
GstBuffer *p_buf;
while( ( p_buf = gst_atomic_queue_pop( p_sys->p_que ) ) )
gst_buffer_unref( p_buf );
gst_atomic_queue_unref( p_sys->p_que );
}
if( b_running && gst_element_set_state( p_sys->p_decoder, GST_STATE_NULL )
!= GST_STATE_CHANGE_SUCCESS )
msg_Err( p_dec,
"failed to change the state to NULL," \
"pipeline may not close gracefully" );
if( p_sys->p_allocator )
gst_object_unref( p_sys->p_allocator );
if( p_sys->p_bus )
gst_object_unref( p_sys->p_bus );
if( p_sys->p_decode_src )
gst_object_unref( p_sys->p_decode_src );
if( p_sys->p_decode_in )
gst_object_unref( p_sys->p_decode_in );
if( p_sys->p_decode_out )
gst_object_unref( p_sys->p_decode_out );
if( p_sys->p_decoder )
gst_object_unref( p_sys->p_decoder );
free( p_sys );
}
/* Decode */
static picture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
{
block_t *p_block;
picture_t *p_pic = NULL;
decoder_sys_t *p_sys = p_dec->p_sys;
GstMessage *p_msg;
GstBuffer *p_buf;
if( !pp_block )
return NULL;
p_block = *pp_block;
if( !p_block )
goto check_messages;
if( unlikely( p_block->i_flags & (BLOCK_FLAG_DISCONTINUITY |
BLOCK_FLAG_CORRUPTED ) ) )
{
if( p_block->i_flags & BLOCK_FLAG_DISCONTINUITY )
Flush( p_dec );
if( p_block->i_flags & BLOCK_FLAG_CORRUPTED )
{
block_Release( p_block );
goto done;
}
}
if( likely( p_block->i_buffer ) )
{
p_buf = gst_buffer_new_wrapped_full( GST_MEMORY_FLAG_READONLY,
p_block->p_start, p_block->i_size,
p_block->p_buffer - p_block->p_start, p_block->i_buffer,
p_block, ( GDestroyNotify )block_Release );
if( unlikely( p_buf == NULL ) )
{
msg_Err( p_dec, "failed to create input gstbuffer" );
p_dec->b_error = true;
block_Release( p_block );
goto done;
}
if( p_block->i_dts > VLC_TS_INVALID )
GST_BUFFER_DTS( p_buf ) = gst_util_uint64_scale( p_block->i_dts,
GST_SECOND, GST_MSECOND );
if( p_block->i_pts <= VLC_TS_INVALID )
GST_BUFFER_PTS( p_buf ) = GST_BUFFER_DTS( p_buf );
else
GST_BUFFER_PTS( p_buf ) = gst_util_uint64_scale( p_block->i_pts,
GST_SECOND, GST_MSECOND );
if( p_block->i_length > VLC_TS_INVALID )
GST_BUFFER_DURATION( p_buf ) = gst_util_uint64_scale(
p_block->i_length, GST_SECOND, GST_MSECOND );
if( p_dec->fmt_in.video.i_frame_rate &&
p_dec->fmt_in.video.i_frame_rate_base )
GST_BUFFER_DURATION( p_buf ) = gst_util_uint64_scale( GST_SECOND,
p_dec->fmt_in.video.i_frame_rate_base,
p_dec->fmt_in.video.i_frame_rate );
/* Give the input buffer to GStreamer Bin.
*
* libvlc libvlc
* \ (i/p) (o/p) ^
* \ /
* ___v____GSTREAMER BIN_____/____
* | |
* | appsrc-->decode-->vlcsink |
* |_______________________________|
*
* * * * * * * * * * * * * * * * * * * * */
if( unlikely( gst_app_src_push_buffer(
GST_APP_SRC_CAST( p_sys->p_decode_src ), p_buf )
!= GST_FLOW_OK ) )
{
/* block will be released internally,
* when gst_buffer_unref() is called */
p_dec->b_error = true;
msg_Err( p_dec, "failed to push buffer" );
goto done;
}
}
else
block_Release( p_block );
check_messages:
/* Poll for any messages, errors */
p_msg = gst_bus_pop_filtered( p_sys->p_bus,
GST_MESSAGE_ASYNC_DONE | GST_MESSAGE_ERROR |
GST_MESSAGE_EOS | GST_MESSAGE_WARNING |
GST_MESSAGE_INFO );
if( p_msg )
{
switch( GST_MESSAGE_TYPE( p_msg ) ){
case GST_MESSAGE_EOS:
/* for debugging purpose */
msg_Warn( p_dec, "got unexpected eos" );
break;
/* First buffer received */
case GST_MESSAGE_ASYNC_DONE:
/* for debugging purpose */
p_sys->b_prerolled = true;
msg_Dbg( p_dec, "Pipeline is prerolled" );
break;
default:
p_dec->b_error = default_msg_handler( p_dec, p_msg );
if( p_dec->b_error )
{
gst_message_unref( p_msg );
goto done;
}
break;
}
gst_message_unref( p_msg );
}
/* Look for any output buffers in the queue */
if( gst_atomic_queue_peek( p_sys->p_que ) )
{
GstBuffer *p_buf = GST_BUFFER_CAST(
gst_atomic_queue_pop( p_sys->p_que ));
GstMemory *p_mem;
if(( p_mem = gst_buffer_peek_memory( p_buf, 0 )) &&
GST_IS_VLC_PICTURE_PLANE_ALLOCATOR( p_mem->allocator ))
{
p_pic = picture_Hold(( (GstVlcPicturePlane*) p_mem )->p_pic );
}
else
{
GstVideoFrame frame;
/* Get a new picture */
p_pic = decoder_NewPicture( p_dec );
if( !p_pic )
goto done;
if( unlikely( !gst_video_frame_map( &frame,
&p_sys->vinfo, p_buf, GST_MAP_READ ) ) )
{
msg_Err( p_dec, "failed to map gst video frame" );
gst_buffer_unref( p_buf );
p_dec->b_error = true;
goto done;
}
gst_CopyPicture( p_pic, &frame );
gst_video_frame_unmap( &frame );
}
if( likely( GST_BUFFER_PTS_IS_VALID( p_buf ) ) )
p_pic->date = gst_util_uint64_scale(
GST_BUFFER_PTS( p_buf ), GST_MSECOND, GST_SECOND );
else
msg_Warn( p_dec, "Gst Buffer has no timestamp" );
gst_buffer_unref( p_buf );
}
done:
*pp_block = NULL;
return p_pic;
}