static gboolean gst_imx_blitter_video_sink_propose_allocation(GstBaseSink *sink, GstQuery *query)
{
GstCaps *caps;
GstVideoInfo info;
GstBufferPool *pool;
guint size;
gst_query_parse_allocation(query, &caps, NULL);
if (caps == NULL)
{
GST_DEBUG_OBJECT(sink, "no caps specified");
return FALSE;
}
if (!gst_video_info_from_caps(&info, caps))
return FALSE;
size = GST_VIDEO_INFO_SIZE(&info);
if (gst_query_get_n_allocation_pools(query) == 0)
{
GstStructure *structure;
GstAllocationParams params;
GstAllocator *allocator = NULL;
memset(¶ms, 0, sizeof(params));
params.flags = 0;
params.align = 15;
params.prefix = 0;
params.padding = 0;
if (gst_query_get_n_allocation_params(query) > 0)
gst_query_parse_nth_allocation_param(query, 0, &allocator, ¶ms);
else
gst_query_add_allocation_param(query, allocator, ¶ms);
pool = gst_video_buffer_pool_new();
structure = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_set_params(structure, caps, size, 0, 0);
gst_buffer_pool_config_set_allocator(structure, allocator, ¶ms);
if (allocator)
gst_object_unref(allocator);
if (!gst_buffer_pool_set_config(pool, structure))
{
GST_ERROR_OBJECT(sink, "failed to set config");
gst_object_unref(pool);
return FALSE;
}
gst_query_add_allocation_pool(query, pool, size, 0, 0);
gst_object_unref(pool);
gst_query_add_allocation_meta(query, GST_VIDEO_META_API_TYPE, NULL);
}
return TRUE;
}
/**
* gst_v4l2_buffer_pool_new:
* @obj: the v4l2 object owning the pool
*
* Construct a new buffer pool.
*
* Returns: the new pool, use gst_object_unref() to free resources
*/
GstBufferPool *
gst_v4l2_buffer_pool_new (GstV4l2Object * obj, GstCaps * caps)
{
GstV4l2BufferPool *pool;
GstStructure *s;
gint fd;
fd = v4l2_dup (obj->video_fd);
if (fd < 0)
goto dup_failed;
pool = (GstV4l2BufferPool *) g_object_new (GST_TYPE_V4L2_BUFFER_POOL, NULL);
pool->video_fd = fd;
pool->obj = obj;
s = gst_buffer_pool_get_config (GST_BUFFER_POOL_CAST (pool));
gst_buffer_pool_config_set_params (s, caps, obj->sizeimage, 2, 0);
gst_buffer_pool_set_config (GST_BUFFER_POOL_CAST (pool), s);
return GST_BUFFER_POOL (pool);
/* ERRORS */
dup_failed:
{
GST_DEBUG ("failed to dup fd %d (%s)", errno, g_strerror (errno));
return NULL;
}
}
static gboolean gst_openh264dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
GstVideoCodecState *state;
GstBufferPool *pool;
guint size, min, max;
GstStructure *config;
if (!GST_VIDEO_DECODER_CLASS (gst_openh264dec_parent_class)->decide_allocation (decoder,
query))
return FALSE;
state = gst_video_decoder_get_output_state (decoder);
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
config = gst_buffer_pool_get_config (pool);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
gst_buffer_pool_set_config (pool, config);
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
gst_object_unref (pool);
gst_video_codec_state_unref (state);
return TRUE;
}
/**
* 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;
GstCaps *pool_caps;
GstStructure *config;
GstVideoInfo vi;
gboolean need_pool;
if (!gst_vaapi_plugin_base_ensure_display (plugin))
return FALSE;
if (plugin->sinkpad_buffer_pool) {
config = gst_buffer_pool_get_config (plugin->sinkpad_buffer_pool);
gst_buffer_pool_config_get_params (config, &pool_caps, NULL, NULL, NULL);
need_pool = !gst_caps_is_equal (caps, pool_caps);
gst_structure_free (config);
if (!need_pool)
return TRUE;
g_clear_object (&plugin->sinkpad_buffer_pool);
plugin->sinkpad_buffer_size = 0;
}
pool = gst_vaapi_video_buffer_pool_new (plugin->display);
if (!pool)
goto error_create_pool;
gst_video_info_init (&vi);
gst_video_info_from_caps (&vi, caps);
if (GST_VIDEO_INFO_FORMAT (&vi) == GST_VIDEO_FORMAT_ENCODED) {
GST_DEBUG ("assume video buffer pool format is NV12");
gst_video_info_set_format (&vi, GST_VIDEO_FORMAT_NV12,
GST_VIDEO_INFO_WIDTH (&vi), GST_VIDEO_INFO_HEIGHT (&vi));
}
plugin->sinkpad_buffer_size = vi.size;
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps,
plugin->sinkpad_buffer_size, 0, 0);
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VAAPI_VIDEO_META);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
if (!gst_buffer_pool_set_config (pool, config))
goto error_pool_config;
plugin->sinkpad_buffer_pool = pool;
return TRUE;
/* ERRORS */
error_create_pool:
{
GST_ERROR ("failed to create buffer pool");
return FALSE;
}
error_pool_config:
{
GST_ERROR ("failed to reset buffer pool config");
gst_object_unref (pool);
return FALSE;
}
}
static gboolean
gst_pngdec_decide_allocation (GstVideoDecoder * bdec, GstQuery * query)
{
GstBufferPool *pool = NULL;
GstStructure *config;
if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (bdec, query))
return FALSE;
if (gst_query_get_n_allocation_pools (query) > 0)
gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL);
if (pool == NULL)
return FALSE;
config = gst_buffer_pool_get_config (pool);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
gst_buffer_pool_set_config (pool, config);
gst_object_unref (pool);
return TRUE;
}
static gboolean gst_imx_v4l2src_decide_allocation(GstBaseSrc *bsrc,
GstQuery *query)
{
GstImxV4l2Src *v4l2src = GST_IMX_V4L2SRC(bsrc);
struct v4l2_format fmt;
GstBufferPool *pool;
guint size, min, max;
gboolean update;
GstStructure *config;
GstCaps *caps;
gst_query_parse_allocation(query, &caps, NULL);
/* Determine min and max */
if (gst_query_get_n_allocation_pools(query) > 0)
{
gst_query_parse_nth_allocation_pool(query, 0, NULL, NULL,
&min, &max);
update = TRUE;
}
else
{
min = max = 0;
update = FALSE;
}
if (min != 0)
/* Need an extra buffer to capture while other buffers
* are downstream */
min += 1;
else
min = v4l2src->queue_size;
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if (ioctl(GST_IMX_FD_OBJECT_GET_FD(v4l2src->fd_obj_v4l), VIDIOC_G_FMT, &fmt) < 0) {
GST_ERROR_OBJECT(v4l2src, "VIDIOC_G_FMT failed");
return FALSE;
}
size = fmt.fmt.pix.sizeimage;
/* no repooling; leads to stream off situation due to pool start/stop */
pool = gst_base_src_get_buffer_pool(bsrc);
if (!pool) {
pool = gst_imx_v4l2_buffer_pool_new(v4l2src->fd_obj_v4l);
config = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_set_params(config, caps, size, min, max);
gst_buffer_pool_config_add_option(config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_set_config(pool, config);
}
if (update)
gst_query_set_nth_allocation_pool(query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool(query, pool, size, min, max);
gst_object_unref(pool);
return TRUE;
}
GstBufferPool* gst_imx_blitter_create_bufferpool(GstImxBlitter *blitter, GstCaps *caps, guint size, guint min_buffers, guint max_buffers, GstAllocator *allocator, GstAllocationParams *alloc_params)
{
GstBufferPool *pool;
GstStructure *config;
GstImxBlitterClass *klass;
g_assert(blitter != NULL);
klass = GST_IMX_BLITTER_CLASS(G_OBJECT_GET_CLASS(blitter));
g_assert(klass->get_phys_mem_allocator != NULL);
pool = gst_imx_phys_mem_buffer_pool_new(FALSE);
config = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_set_params(config, caps, size, min_buffers, max_buffers);
/* If the allocator value is NULL, get an allocator
* it is unref'd by the buffer pool when it is unref'd */
if (allocator == NULL)
allocator = klass->get_phys_mem_allocator(blitter);
if (allocator == NULL)
{
GST_ERROR_OBJECT(blitter, "could not create physical memory bufferpool allocator");
return NULL;
}
gst_buffer_pool_config_set_allocator(config, allocator, alloc_params);
gst_buffer_pool_config_add_option(config, GST_BUFFER_POOL_OPTION_IMX_PHYS_MEM);
gst_buffer_pool_config_add_option(config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_set_config(pool, config);
return pool;
}
static inline gboolean
gst_vaapi_plugin_base_set_pool_config (GstBufferPool * pool,
const gchar * option)
{
GstStructure *config;
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config, option);
return gst_buffer_pool_set_config (pool, config);
}
static gboolean
gst_decklink_video_sink_propose_allocation (GstBaseSink * bsink,
GstQuery * query)
{
GstCaps *caps;
GstVideoInfo info;
GstBufferPool *pool;
guint size;
gst_query_parse_allocation (query, &caps, NULL);
if (caps == NULL)
return FALSE;
if (!gst_video_info_from_caps (&info, caps))
return FALSE;
size = GST_VIDEO_INFO_SIZE (&info);
if (gst_query_get_n_allocation_pools (query) == 0) {
GstStructure *structure;
GstAllocator *allocator = NULL;
GstAllocationParams params = { (GstMemoryFlags) 0, 15, 0, 0 };
if (gst_query_get_n_allocation_params (query) > 0)
gst_query_parse_nth_allocation_param (query, 0, &allocator, ¶ms);
else
gst_query_add_allocation_param (query, allocator, ¶ms);
pool = gst_video_buffer_pool_new ();
structure = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (structure, caps, size, 0, 0);
gst_buffer_pool_config_set_allocator (structure, allocator, ¶ms);
if (allocator)
gst_object_unref (allocator);
if (!gst_buffer_pool_set_config (pool, structure))
goto config_failed;
gst_query_add_allocation_pool (query, pool, size, 0, 0);
gst_object_unref (pool);
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
}
return TRUE;
// ERRORS
config_failed:
{
GST_ERROR_OBJECT (bsink, "failed to set config");
gst_object_unref (pool);
return FALSE;
}
}
static gboolean
gst_wayland_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
{
GstWaylandSink *sink = GST_WAYLAND_SINK (bsink);
GstBufferPool *newpool, *oldpool;
GstVideoInfo info;
GstStructure *structure;
static GstAllocationParams params = { 0, 0, 0, 15, };
guint size;
sink = GST_WAYLAND_SINK (bsink);
GST_LOG_OBJECT (sink, "set caps %" GST_PTR_FORMAT, caps);
if (!gst_video_info_from_caps (&info, caps))
goto invalid_format;
sink->video_width = info.width;
sink->video_height = info.height;
size = info.size;
/* create a new pool for the new configuration */
newpool = gst_wayland_buffer_pool_new (sink);
if (!newpool) {
GST_DEBUG_OBJECT (sink, "Failed to create new pool");
return FALSE;
}
structure = gst_buffer_pool_get_config (newpool);
gst_buffer_pool_config_set_params (structure, caps, size, 2, 0);
gst_buffer_pool_config_set_allocator (structure, NULL, ¶ms);
if (!gst_buffer_pool_set_config (newpool, structure))
goto config_failed;
oldpool = sink->pool;
sink->pool = newpool;
if (oldpool)
gst_object_unref (oldpool);
return TRUE;
invalid_format:
{
GST_DEBUG_OBJECT (sink,
"Could not locate image format from caps %" GST_PTR_FORMAT, caps);
return FALSE;
}
config_failed:
{
GST_DEBUG_OBJECT (bsink, "failed setting config");
return FALSE;
}
}
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 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 GstBufferPool *
create_pool (guint size, guint min_buf, guint max_buf)
{
GstBufferPool *pool = gst_buffer_pool_new ();
GstStructure *conf = gst_buffer_pool_get_config (pool);
GstCaps *caps = gst_caps_new_empty_simple ("test/data");
gst_buffer_pool_config_set_params (conf, caps, size, min_buf, max_buf);
gst_buffer_pool_set_config (pool, conf);
gst_caps_unref (caps);
return pool;
}
gboolean
gst_droidcamsrc_dev_init (GstDroidCamSrcDev * dev)
{
GstStructure *config;
GST_DEBUG ("dev init");
g_rec_mutex_lock (dev->lock);
/* first the buffer pool */
config = gst_buffer_pool_get_config (dev->pool);
gst_buffer_pool_config_set_params (config, NULL, 0,
GST_DROIDCAMSRC_NUM_BUFFERS, GST_DROIDCAMSRC_NUM_BUFFERS);
if (!gst_buffer_pool_set_config (dev->pool, config)) {
GST_ERROR ("Failed to configure buffer pool");
return FALSE;
}
/* now the callbacks */
{
DroidMediaCameraCallbacks cb;
cb.shutter_cb = gst_droidcamsrc_dev_shutter_callback;
cb.focus_cb = gst_droidcamsrc_dev_focus_callback;
cb.focus_move_cb = gst_droidcamsrc_dev_focus_move_callback;
cb.error_cb = gst_droidcamsrc_dev_error_callback;
cb.zoom_cb = gst_droidcamsrc_dev_zoom_callback;
cb.raw_image_cb = gst_droidcamsrc_dev_raw_image_callback;
cb.compressed_image_cb = gst_droidcamsrc_dev_compressed_image_callback;
cb.postview_frame_cb = gst_droidcamsrc_dev_postview_frame_callback;
cb.raw_image_notify_cb = gst_droidcamsrc_dev_raw_image_notify_callback;
cb.preview_frame_cb = gst_droidcamsrc_dev_preview_frame_callback;
cb.video_frame_cb = gst_droidcamsrc_dev_video_frame_callback;
cb.preview_metadata_cb = gst_droidcamsrc_dev_preview_metadata_callback;
droid_media_camera_set_callbacks (dev->cam, &cb, dev);
}
{
DroidMediaBufferQueueCallbacks cb;
cb.buffers_released = gst_droidcamsrc_dev_buffers_released;
cb.frame_available = gst_droidcamsrc_dev_frame_available;
droid_media_buffer_queue_set_callbacks (dev->queue, &cb, dev);
}
gst_droidcamsrc_dev_update_params_locked (dev);
g_rec_mutex_unlock (dev->lock);
return TRUE;
}
static gboolean
gst_openni2src_decide_allocation (GstBaseSrc * bsrc, GstQuery * query)
{
GstBufferPool *pool;
guint size, min, max;
gboolean update;
GstStructure *config;
GstCaps *caps;
GstVideoInfo info;
gst_query_parse_allocation (query, &caps, NULL);
gst_video_info_from_caps (&info, caps);
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
update = TRUE;
} else {
pool = NULL;
min = max = 0;
size = info.size;
update = FALSE;
}
GST_DEBUG_OBJECT (bsrc, "allocation: size:%u min:%u max:%u pool:%"
GST_PTR_FORMAT " caps:%" GST_PTR_FORMAT, size, min, max, pool, caps);
if (!pool)
pool = gst_video_buffer_pool_new ();
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)) {
GST_DEBUG_OBJECT (pool, "activate Video Meta");
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
gst_buffer_pool_set_config (pool, config);
if (update)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
return GST_BASE_SRC_CLASS (parent_class)->decide_allocation (bsrc, query);
}
static gboolean
gst_video_test_src_decide_allocation (GstBaseSrc * bsrc, GstQuery * query)
{
GstVideoTestSrc *videotestsrc;
GstBufferPool *pool;
gboolean update;
guint size, min, max;
GstStructure *config;
videotestsrc = GST_VIDEO_TEST_SRC (bsrc);
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
/* adjust size */
size = MAX (size, videotestsrc->info.size);
update = TRUE;
} else {
pool = NULL;
size = videotestsrc->info.size;
min = max = 0;
update = FALSE;
}
/* no downstream pool, make our own */
if (pool == NULL) {
if (videotestsrc->bayer)
pool = gst_buffer_pool_new ();
else
pool = gst_video_buffer_pool_new ();
}
config = gst_buffer_pool_get_config (pool);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
gst_buffer_pool_set_config (pool, config);
if (update)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
if (pool)
gst_object_unref (pool);
return GST_BASE_SRC_CLASS (parent_class)->decide_allocation (bsrc, query);
}
static gboolean
theora_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
GstTheoraDec *dec = GST_THEORA_DEC (decoder);
GstVideoCodecState *state;
GstBufferPool *pool;
guint size, min, max;
GstStructure *config;
if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
query))
return FALSE;
state = gst_video_decoder_get_output_state (decoder);
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
dec->can_crop = FALSE;
config = gst_buffer_pool_get_config (pool);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
dec->can_crop =
gst_query_find_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE,
NULL);
}
if (dec->can_crop) {
GstVideoInfo info = state->info;
GstCaps *caps;
/* Calculate uncropped size */
gst_video_info_set_format (&info, info.finfo->format, dec->info.frame_width,
dec->info.frame_height);
size = MAX (size, info.size);
caps = gst_video_info_to_caps (&info);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
gst_caps_unref (caps);
}
gst_buffer_pool_set_config (pool, config);
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
gst_object_unref (pool);
gst_video_codec_state_unref (state);
return TRUE;
}
static gboolean
gst_mfc_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
GstMFCDec *self = GST_MFC_DEC (decoder);
GstBufferPool *pool;
GstStructure *config;
guint size, min, max;
if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
query))
return FALSE;
g_assert (gst_query_get_n_allocation_pools (query) > 0);
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
g_assert (pool != NULL);
self->has_cropping = FALSE;
config = gst_buffer_pool_get_config (pool);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
self->has_cropping =
gst_query_find_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE,
NULL);
}
if (self->has_cropping) {
GstVideoInfo info;
GstCaps *caps;
/* Calculate uncropped size */
gst_buffer_pool_config_get_params (config, &caps, &size, &min, &max);
gst_video_info_from_caps (&info, caps);
gst_video_info_set_format (&info, self->format, self->width, self->height);
size = MAX (size, info.size);
caps = gst_video_info_to_caps (&info);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
gst_caps_unref (caps);
}
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
gst_buffer_pool_set_config (pool, config);
gst_object_unref (pool);
return TRUE;
}
static GstBufferPool* gst_imx_video_compositor_create_bufferpool(GstImxVideoCompositor *compositor, GstCaps *caps, guint size, guint min_buffers, guint max_buffers, GstAllocator *allocator, GstAllocationParams *alloc_params)
{
GstBufferPool *pool;
GstStructure *config;
GstImxVideoCompositorClass *klass;
g_assert(compositor != NULL);
klass = GST_IMX_VIDEO_COMPOSITOR_CLASS(G_OBJECT_GET_CLASS(compositor));
g_assert(klass->get_phys_mem_allocator != NULL);
if (size == 0)
{
GstVideoInfo info;
if (!gst_video_info_from_caps(&info, caps))
{
GST_ERROR_OBJECT(compositor, "could not parse caps for dma bufferpool");
return NULL;
}
}
pool = gst_imx_phys_mem_buffer_pool_new(FALSE);
config = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_set_params(config, caps, size, min_buffers, max_buffers);
/* If the allocator value is NULL, get an allocator
* it is unref'd by the buffer pool when it is unref'd */
if (allocator == NULL)
allocator = klass->get_phys_mem_allocator(compositor);
if (allocator == NULL)
{
GST_ERROR_OBJECT(compositor, "could not create physical memory bufferpool allocator");
return NULL;
}
gst_buffer_pool_config_set_allocator(config, allocator, alloc_params);
gst_buffer_pool_config_add_option(config, GST_BUFFER_POOL_OPTION_IMX_PHYS_MEM);
gst_buffer_pool_config_add_option(config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_set_config(pool, config);
gst_object_unref(allocator);
return pool;
}
static gboolean
gst_rfb_src_decide_allocation (GstBaseSrc * bsrc, GstQuery * query)
{
GstBufferPool *pool = NULL;
guint size, min = 1, max = 0;
GstStructure *config;
GstCaps *caps;
GstVideoInfo info;
gboolean ret;
gst_query_parse_allocation (query, &caps, NULL);
if (!caps || !gst_video_info_from_caps (&info, caps))
return FALSE;
while (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
/* TODO We restrict to the exact size as we don't support strides or
* special padding */
if (size == info.size)
break;
gst_query_remove_nth_allocation_pool (query, 0);
gst_object_unref (pool);
pool = NULL;
}
if (pool == NULL) {
/* we did not get a pool, make one ourselves then */
pool = gst_video_buffer_pool_new ();
size = info.size;
min = 1;
max = 0;
gst_query_add_allocation_pool (query, pool, size, min, max);
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
ret = gst_buffer_pool_set_config (pool, config);
gst_object_unref (pool);
return ret;
}
/**
* gst_vaapi_plugin_base_propose_allocation:
* @plugin: a #GstVaapiPluginBase
* @query: the allocation query to configure
*
* Proposes allocation parameters to the upstream elements.
*
* Returns: %TRUE if successful, %FALSE otherwise.
*/
gboolean
gst_vaapi_plugin_base_propose_allocation (GstVaapiPluginBase * plugin,
GstQuery * query)
{
GstCaps *caps = NULL;
gboolean need_pool;
gst_query_parse_allocation (query, &caps, &need_pool);
if (need_pool) {
if (!caps)
goto error_no_caps;
if (!ensure_sinkpad_buffer_pool (plugin, caps))
return FALSE;
gst_query_add_allocation_pool (query, plugin->sinkpad_buffer_pool,
plugin->sinkpad_buffer_size, 0, 0);
if (has_dmabuf_capable_peer (plugin, plugin->sinkpad)) {
GstStructure *const config =
gst_buffer_pool_get_config (plugin->sinkpad_buffer_pool);
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_DMABUF_MEMORY);
if (!gst_buffer_pool_set_config (plugin->sinkpad_buffer_pool, config))
goto error_pool_config;
}
}
gst_query_add_allocation_meta (query, GST_VAAPI_VIDEO_META_API_TYPE, NULL);
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
return TRUE;
/* ERRORS */
error_no_caps:
{
GST_INFO_OBJECT (plugin, "no caps specified");
return FALSE;
}
error_pool_config:
{
GST_ERROR_OBJECT (plugin, "failed to reset buffer pool config");
return FALSE;
}
}
/* configure the allocation query that was answered downstream, we can configure
* some properties on it. Only called when not in passthrough mode. */
static gboolean
gst_video_filter_decide_allocation (GstBaseTransform * trans, GstQuery * query)
{
GstBufferPool *pool = NULL;
GstStructure *config;
guint min, max, size;
gboolean update_pool;
GstCaps *outcaps = NULL;
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
update_pool = TRUE;
} else {
GstVideoInfo vinfo;
gst_query_parse_allocation (query, &outcaps, NULL);
gst_video_info_init (&vinfo);
gst_video_info_from_caps (&vinfo, outcaps);
size = vinfo.size;
min = max = 0;
update_pool = FALSE;
}
if (!pool)
pool = gst_video_buffer_pool_new ();
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
if (outcaps)
gst_buffer_pool_config_set_params (config, outcaps, size, 0, 0);
gst_buffer_pool_set_config (pool, config);
if (update_pool)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
return GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (trans,
query);
}
GstBufferPool* gst_imx_ipu_blitter_create_bufferpool(GstImxIpuBlitter *ipu_blitter, GstCaps *caps, guint size, guint min_buffers, guint max_buffers, GstAllocator *allocator, GstAllocationParams *alloc_params)
{
GstBufferPool *pool;
GstStructure *config;
pool = gst_imx_phys_mem_buffer_pool_new(FALSE);
config = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_set_params(config, caps, size, min_buffers, max_buffers);
/* If the allocator value is NULL, create an allocator */
if (allocator == NULL)
{
allocator = gst_imx_ipu_allocator_new(ipu_blitter->priv->ipu_fd);
gst_buffer_pool_config_set_allocator(config, allocator, alloc_params);
}
gst_buffer_pool_config_add_option(config, GST_BUFFER_POOL_OPTION_IMX_PHYS_MEM);
gst_buffer_pool_config_add_option(config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_set_config(pool, config);
return pool;
}
static gboolean gst_imx_vpu_encoder_base_propose_allocation(GstVideoEncoder *encoder, GstQuery *query)
{
GstStructure *config;
GstCaps *caps;
gboolean need_pool;
GstVideoInfo info;
GstBufferPool *pool;
gst_query_parse_allocation (query, &caps, &need_pool);
if (need_pool)
{
if (caps == NULL)
{
GST_WARNING_OBJECT(encoder, "no caps");
return FALSE;
}
if (!gst_video_info_from_caps(&info, caps))
{
GST_WARNING_OBJECT(encoder, "invalid caps");
return FALSE;
}
pool = gst_imx_phys_mem_buffer_pool_new(FALSE);
config = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_set_params(config, caps, info.size, 2, 0);
gst_buffer_pool_config_set_allocator(config, encoder->phys_mem_allocator, NULL);
gst_buffer_pool_config_add_option(config, GST_BUFFER_POOL_OPTION_IMX_PHYS_MEM);
gst_buffer_pool_config_add_option(config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_set_config(pool, config);
gst_query_add_allocation_pool(query, pool, info.size, 2, 0);
gst_object_unref (pool);
}
return TRUE;
}
static GstVlcVideoPool* gst_vlc_video_sink_create_pool(
GstVlcVideoSink *p_vsink, GstCaps *p_caps, gsize i_size, gint i_min )
{
GstVlcVideoPool *p_pool;
GstStructure *p_config;
p_pool = gst_vlc_video_pool_new( p_vsink->p_allocator, p_vsink->p_dec );
p_config = gst_buffer_pool_get_config( GST_BUFFER_POOL_CAST( p_pool ));
gst_buffer_pool_config_set_params( p_config, p_caps, i_size, i_min, 0);
if( !gst_buffer_pool_set_config( GST_BUFFER_POOL_CAST( p_pool ), p_config ))
goto config_failed;
return p_pool;
config_failed:
{
gst_object_unref (p_pool);
return NULL;
}
}
static GstBufferPool *
gst_kms_sink_create_pool (GstKMSSink * self, GstCaps * caps, gsize size,
gint min)
{
GstBufferPool *pool;
GstStructure *config;
pool = gst_kms_buffer_pool_new ();
if (!pool)
goto pool_failed;
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, min, 0);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
ensure_kms_allocator (self);
gst_buffer_pool_config_set_allocator (config, self->allocator, NULL);
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
return pool;
/* ERRORS */
pool_failed:
{
GST_ERROR_OBJECT (self, "failed to create buffer pool");
return NULL;
}
config_failed:
{
GST_ERROR_OBJECT (self, "failed to set config");
gst_object_unref (pool);
return NULL;
}
}
static GstBufferPool *
gst_msdkvpp_create_buffer_pool (GstMsdkVPP * thiz, GstPadDirection direction,
GstCaps * caps, guint min_num_buffers)
{
GstBufferPool *pool = NULL;
GstStructure *config;
GstAllocator *allocator = NULL;
GstVideoInfo info;
GstVideoInfo *pool_info = NULL;
GstVideoAlignment align;
GstAllocationParams params = { 0, 31, 0, 0, };
mfxFrameAllocResponse *alloc_resp = NULL;
gboolean use_dmabuf = FALSE;
if (direction == GST_PAD_SINK) {
alloc_resp = &thiz->in_alloc_resp;
pool_info = &thiz->sinkpad_buffer_pool_info;
use_dmabuf = thiz->use_sinkpad_dmabuf;
} else if (direction == GST_PAD_SRC) {
alloc_resp = &thiz->out_alloc_resp;
pool_info = &thiz->srcpad_buffer_pool_info;
use_dmabuf = thiz->use_srcpad_dmabuf;
}
pool = gst_msdk_buffer_pool_new (thiz->context, alloc_resp);
if (!pool)
goto error_no_pool;
if (!gst_video_info_from_caps (&info, caps))
goto error_no_video_info;
gst_msdk_set_video_alignment (&info, &align);
gst_video_info_align (&info, &align);
if (use_dmabuf)
allocator =
gst_msdk_dmabuf_allocator_new (thiz->context, &info, alloc_resp);
else if (thiz->use_video_memory)
allocator = gst_msdk_video_allocator_new (thiz->context, &info, alloc_resp);
else
allocator = gst_msdk_system_allocator_new (&info);
if (!allocator)
goto error_no_allocator;
config = gst_buffer_pool_get_config (GST_BUFFER_POOL_CAST (pool));
gst_buffer_pool_config_set_params (config, caps, info.size, min_num_buffers,
0);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
if (thiz->use_video_memory) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_MSDK_USE_VIDEO_MEMORY);
if (use_dmabuf)
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_MSDK_USE_DMABUF);
}
gst_buffer_pool_config_set_video_alignment (config, &align);
gst_buffer_pool_config_set_allocator (config, allocator, ¶ms);
gst_object_unref (allocator);
if (!gst_buffer_pool_set_config (pool, config))
goto error_pool_config;
/* Updating pool_info with algined info of allocator */
*pool_info = info;
return pool;
error_no_pool:
{
GST_INFO_OBJECT (thiz, "Failed to create bufferpool");
return NULL;
}
error_no_video_info:
{
GST_INFO_OBJECT (thiz, "Failed to get Video info from caps");
return NULL;
}
error_no_allocator:
{
GST_INFO_OBJECT (thiz, "Failed to create allocator");
if (pool)
gst_object_unref (pool);
return NULL;
}
error_pool_config:
{
GST_INFO_OBJECT (thiz, "Failed to set config");
if (pool)
gst_object_unref (pool);
if (allocator)
gst_object_unref (allocator);
return NULL;
}
}
static gboolean
gst_wayland_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
{
GstWaylandSink *sink = GST_WAYLAND_SINK (bsink);
GstBufferPool *pool;
GstStructure *config;
GstCaps *caps;
guint size;
gboolean need_pool;
gst_query_parse_allocation (query, &caps, &need_pool);
if (caps == NULL)
goto no_caps;
g_mutex_lock (&sink->wayland_lock);
if ((pool = sink->pool))
gst_object_ref (pool);
g_mutex_unlock (&sink->wayland_lock);
if (pool != NULL) {
GstCaps *pcaps;
/* we had a pool, check caps */
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, &pcaps, &size, NULL, NULL);
if (!gst_caps_is_equal (caps, pcaps)) {
/* different caps, we can't use this pool */
gst_object_unref (pool);
pool = NULL;
}
gst_structure_free (config);
}
if (pool == NULL && need_pool) {
GstVideoInfo info;
if (!gst_video_info_from_caps (&info, caps))
goto invalid_caps;
GST_DEBUG_OBJECT (sink, "create new pool");
pool = gst_wayland_buffer_pool_new (sink);
/* the normal size of a frame */
size = info.size;
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, 2, 0);
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
}
if (pool) {
gst_query_add_allocation_pool (query, pool, size, 2, 0);
gst_object_unref (pool);
}
return TRUE;
/* ERRORS */
no_caps:
{
GST_DEBUG_OBJECT (bsink, "no caps specified");
return FALSE;
}
invalid_caps:
{
GST_DEBUG_OBJECT (bsink, "invalid caps specified");
return FALSE;
}
config_failed:
{
GST_DEBUG_OBJECT (bsink, "failed setting config");
gst_object_unref (pool);
return FALSE;
}
}
static gboolean
gst_glimage_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
{
GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (bsink);
GstBufferPool *pool;
GstStructure *config;
GstCaps *caps;
guint size;
gboolean need_pool;
GstStructure *gl_context;
gchar *platform, *gl_apis;
gpointer handle;
if (!_ensure_gl_setup (glimage_sink))
return FALSE;
gst_query_parse_allocation (query, &caps, &need_pool);
if (caps == NULL)
goto no_caps;
if ((pool = glimage_sink->pool))
gst_object_ref (pool);
if (pool != NULL) {
GstCaps *pcaps;
/* we had a pool, check caps */
GST_DEBUG_OBJECT (glimage_sink, "check existing pool caps");
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, &pcaps, &size, NULL, NULL);
if (!gst_caps_is_equal (caps, pcaps)) {
GST_DEBUG_OBJECT (glimage_sink, "pool has different caps");
/* different caps, we can't use this pool */
gst_object_unref (pool);
pool = NULL;
}
gst_structure_free (config);
}
if (pool == NULL && need_pool) {
GstVideoInfo info;
if (!gst_video_info_from_caps (&info, caps))
goto invalid_caps;
GST_DEBUG_OBJECT (glimage_sink, "create new pool");
pool = gst_gl_buffer_pool_new (glimage_sink->context);
/* the normal size of a frame */
size = info.size;
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
}
/* we need at least 2 buffer because we hold on to the last one */
gst_query_add_allocation_pool (query, pool, size, 2, 0);
/* we also support various metadata */
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, 0);
gst_object_unref (pool);
gl_apis =
gst_gl_api_to_string (gst_gl_context_get_gl_api (glimage_sink->context));
platform =
gst_gl_platform_to_string (gst_gl_context_get_gl_platform
(glimage_sink->context));
handle = (gpointer) gst_gl_context_get_gl_context (glimage_sink->context);
gl_context =
gst_structure_new ("GstVideoGLTextureUploadMeta", "gst.gl.GstGLContext",
GST_GL_TYPE_CONTEXT, glimage_sink->context, "gst.gl.context.handle",
G_TYPE_POINTER, handle, "gst.gl.context.type", G_TYPE_STRING, platform,
"gst.gl.context.apis", G_TYPE_STRING, gl_apis, NULL);
gst_query_add_allocation_meta (query,
GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, gl_context);
g_free (gl_apis);
g_free (platform);
gst_structure_free (gl_context);
return TRUE;
/* ERRORS */
no_caps:
{
GST_DEBUG_OBJECT (bsink, "no caps specified");
return FALSE;
}
invalid_caps:
{
GST_DEBUG_OBJECT (bsink, "invalid caps specified");
return FALSE;
}
config_failed:
{
GST_DEBUG_OBJECT (bsink, "failed setting config");
return FALSE;
}
}
