static gboolean
gst_video_gl_texture_upload_meta_transform (GstBuffer * dest, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstVideoGLTextureUploadMeta *dmeta, *smeta;
smeta = (GstVideoGLTextureUploadMeta *) meta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
GstMetaTransformCopy *copy = data;
if (!copy->region) {
/* only copy if the complete data is copied as well */
dmeta =
(GstVideoGLTextureUploadMeta *) gst_buffer_add_meta (dest,
GST_VIDEO_GL_TEXTURE_UPLOAD_META_INFO, NULL);
if (!dmeta)
return FALSE;
dmeta->texture_orientation = smeta->texture_orientation;
dmeta->n_textures = smeta->n_textures;
memcpy (dmeta->texture_type, smeta->texture_type,
sizeof (smeta->texture_type[0]) * 4);
dmeta->buffer = dest;
dmeta->upload = smeta->upload;
dmeta->user_data = smeta->user_data;
dmeta->user_data_copy = smeta->user_data_copy;
dmeta->user_data_free = smeta->user_data_free;
if (dmeta->user_data_copy)
dmeta->user_data = dmeta->user_data_copy (dmeta->user_data);
}
}
return TRUE;
}
static gboolean
gst_audio_clipping_meta_transform (GstBuffer * dest, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstAudioClippingMeta *smeta, *dmeta;
smeta = (GstAudioClippingMeta *) meta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
GstMetaTransformCopy *copy = data;
if (copy->region)
return FALSE;
dmeta =
gst_buffer_add_audio_clipping_meta (dest, smeta->format, smeta->start,
smeta->end);
if (!dmeta)
return FALSE;
} else {
/* TODO: Could implement an automatic transform for resampling */
/* return FALSE, if transform type is not supported */
return FALSE;
}
return TRUE;
}
static gboolean
_gst_gl_sync_meta_transform (GstBuffer * dest, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstGLSyncMeta *dmeta, *smeta;
smeta = (GstGLSyncMeta *) meta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
GstMetaTransformCopy *copy = data;
if (!copy->region) {
/* only copy if the complete data is copied as well */
dmeta = gst_buffer_add_gl_sync_meta (smeta->context, dest);
if (!dmeta)
return FALSE;
GST_LOG ("copy sync object %p from meta %p to %p", smeta->glsync,
smeta, dmeta);
/* Setting a sync point here relies on GstBuffer copying
* metas after data */
gst_gl_sync_meta_set_sync_point (dmeta, smeta->context);
}
} else {
/* return FALSE, if transform type is not supported */
return FALSE;
}
return TRUE;
}
static gboolean
gst_vaapi_video_meta_holder_transform (GstBuffer * dst_buffer, GstMeta * meta,
GstBuffer * src_buffer, GQuark type, gpointer data)
{
GstVaapiVideoMetaHolder *const src_meta = GST_VAAPI_VIDEO_META_HOLDER (meta);
if (GST_META_TRANSFORM_IS_COPY (type)) {
GstVaapiVideoMeta *const dst_meta =
gst_vaapi_video_meta_copy (src_meta->meta);
gst_buffer_set_vaapi_video_meta (dst_buffer, dst_meta);
gst_vaapi_video_meta_unref (dst_meta);
return TRUE;
}
return FALSE;
}
static gboolean
kms_buffer_latency_meta_transform (GstBuffer * transbuf, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
KmsBufferLatencyMeta *lmeta;
/* we always copy no matter what transform */
if (GST_META_TRANSFORM_IS_COPY (type)) {
lmeta = (KmsBufferLatencyMeta *) meta;
GST_DEBUG ("copy latency metadata");
kms_buffer_add_buffer_latency_meta (transbuf, lmeta->ts, lmeta->valid,
lmeta->type);
}
return TRUE;
}
static gboolean
gst_video_affine_transformation_meta_transform (GstBuffer * dest,
GstMeta * meta, GstBuffer * buffer, GQuark type, gpointer data)
{
GstVideoAffineTransformationMeta *dmeta, *smeta;
smeta = (GstVideoAffineTransformationMeta *) meta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
dmeta =
(GstVideoAffineTransformationMeta *) gst_buffer_add_meta (dest,
GST_VIDEO_AFFINE_TRANSFORMATION_META_INFO, NULL);
if (!dmeta)
return FALSE;
memcpy (dmeta->matrix, smeta->matrix, sizeof (dmeta->matrix[0]) * 16);
}
return TRUE;
}
static gboolean
gst_video_meta_transform (GstBuffer * dest, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstVideoMeta *dmeta, *smeta;
guint i;
smeta = (GstVideoMeta *) meta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
GstMetaTransformCopy *copy = data;
if (!copy->region) {
/* only copy if the complete data is copied as well */
dmeta =
(GstVideoMeta *) gst_buffer_add_meta (dest, GST_VIDEO_META_INFO,
NULL);
if (!dmeta)
return FALSE;
dmeta->buffer = dest;
GST_DEBUG ("copy video metadata");
dmeta->flags = smeta->flags;
dmeta->format = smeta->format;
dmeta->id = smeta->id;
dmeta->width = smeta->width;
dmeta->height = smeta->height;
dmeta->n_planes = smeta->n_planes;
for (i = 0; i < dmeta->n_planes; i++) {
dmeta->offset[i] = smeta->offset[i];
dmeta->stride[i] = smeta->stride[i];
}
dmeta->map = smeta->map;
dmeta->unmap = smeta->unmap;
}
}
return TRUE;
}
static gboolean
gst_audio_downmix_meta_transform (GstBuffer * dest, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstAudioDownmixMeta *smeta, *dmeta;
smeta = (GstAudioDownmixMeta *) meta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
dmeta = gst_buffer_add_audio_downmix_meta (dest, smeta->from_position,
smeta->from_channels, smeta->to_position, smeta->to_channels,
(const gfloat **) smeta->matrix);
if (!dmeta)
return FALSE;
} else {
/* return FALSE, if transform type is not supported */
return FALSE;
}
return TRUE;
}
static gboolean
kms_serializable_meta_transform (GstBuffer * transbuf, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
KmsSerializableMeta *smeta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
GstStructure *copy = NULL;
smeta = (KmsSerializableMeta *) meta;
if (smeta->data != NULL) {
copy = gst_structure_copy (smeta->data);
}
GST_DEBUG ("copy serializable metadata");
kms_buffer_add_serializable_meta (transbuf, copy);
}
return TRUE;
}
static gboolean
gst_frame_positionner_meta_transform (GstBuffer * dest, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstFramePositionnerMeta *dmeta, *smeta;
smeta = (GstFramePositionnerMeta *) meta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
/* only copy if the complete data is copied as well */
dmeta =
(GstFramePositionnerMeta *) gst_buffer_add_meta (dest,
gst_frame_positionner_get_info (), NULL);
dmeta->alpha = smeta->alpha;
dmeta->posx = smeta->posx;
dmeta->posy = smeta->posy;
dmeta->zorder = smeta->zorder;
}
return TRUE;
}
static gboolean
gst_protection_meta_transform (GstBuffer * transbuf, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstProtectionMeta *protection_meta = (GstProtectionMeta *) meta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
GstMetaTransformCopy *copy = data;
if (!copy->region) {
/* only copy if the complete data is copied as well */
gst_buffer_add_protection_meta (transbuf,
gst_structure_copy (protection_meta->info));
} else {
return FALSE;
}
} else {
/* transform type not supported */
return FALSE;
}
return TRUE;
}
static gboolean
gst_video_region_of_interest_meta_transform (GstBuffer * dest, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstVideoRegionOfInterestMeta *dmeta, *smeta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
smeta = (GstVideoRegionOfInterestMeta *) meta;
GST_DEBUG ("copy region of interest metadata");
dmeta =
gst_buffer_add_video_region_of_interest_meta_id (dest,
smeta->roi_type, smeta->x, smeta->y, smeta->w, smeta->h);
dmeta->id = smeta->id;
dmeta->parent_id = smeta->parent_id;
} else if (GST_VIDEO_META_TRANSFORM_IS_SCALE (type)) {
GstVideoMetaTransform *trans = data;
gint ow, oh, nw, nh;
ow = GST_VIDEO_INFO_WIDTH (trans->in_info);
nw = GST_VIDEO_INFO_WIDTH (trans->out_info);
oh = GST_VIDEO_INFO_HEIGHT (trans->in_info);
nh = GST_VIDEO_INFO_HEIGHT (trans->out_info);
GST_DEBUG ("scaling region of interest metadata %dx%d -> %dx%d", ow, oh, nw,
nh);
smeta = (GstVideoRegionOfInterestMeta *) meta;
dmeta =
gst_buffer_add_video_region_of_interest_meta_id (dest,
smeta->roi_type, (smeta->x * nw) / ow, (smeta->y * nh) / oh,
(smeta->w * nw) / ow, (smeta->h * nh) / oh);
dmeta->id = smeta->id;
dmeta->parent_id = smeta->parent_id;
GST_DEBUG ("region of interest (id:%d, parent id:%d) offset %dx%d -> %dx%d",
smeta->id, smeta->parent_id, smeta->x, smeta->y, dmeta->x, dmeta->y);
GST_DEBUG ("region of interest size %dx%d -> %dx%d", smeta->w, smeta->h,
dmeta->w, dmeta->h);
}
return TRUE;
}
static gboolean
gst_video_crop_meta_transform (GstBuffer * dest, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstVideoCropMeta *dmeta, *smeta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
smeta = (GstVideoCropMeta *) meta;
dmeta = gst_buffer_add_video_crop_meta (dest);
GST_DEBUG ("copy crop metadata");
dmeta->x = smeta->x;
dmeta->y = smeta->y;
dmeta->width = smeta->width;
dmeta->height = smeta->height;
} else if (GST_VIDEO_META_TRANSFORM_IS_SCALE (type)) {
GstVideoMetaTransform *trans = data;
gint ow, oh, nw, nh;
smeta = (GstVideoCropMeta *) meta;
dmeta = gst_buffer_add_video_crop_meta (dest);
ow = GST_VIDEO_INFO_WIDTH (trans->in_info);
nw = GST_VIDEO_INFO_WIDTH (trans->out_info);
oh = GST_VIDEO_INFO_HEIGHT (trans->in_info);
nh = GST_VIDEO_INFO_HEIGHT (trans->out_info);
GST_DEBUG ("scaling crop metadata %dx%d -> %dx%d", ow, oh, nw, nh);
dmeta->x = (smeta->x * nw) / ow;
dmeta->y = (smeta->y * nh) / oh;
dmeta->width = (smeta->width * nw) / ow;
dmeta->height = (smeta->height * nh) / oh;
GST_DEBUG ("crop offset %dx%d -> %dx%d", smeta->x, smeta->y, dmeta->x,
dmeta->y);
GST_DEBUG ("crop size %dx%d -> %dx%d", smeta->width, smeta->height,
dmeta->width, dmeta->height);
}
return TRUE;
}
static gboolean
_gst_gl_sync_meta_transform (GstBuffer * dest, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstGLSyncMeta *dmeta, *smeta;
smeta = (GstGLSyncMeta *) meta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
GstMetaTransformCopy *copy = data;
g_assert (smeta->copy != NULL);
if (!copy->region) {
/* only copy if the complete data is copied as well */
dmeta = gst_buffer_add_gl_sync_meta_full (smeta->context, dest, NULL);
if (!dmeta)
return FALSE;
dmeta->set_sync = smeta->set_sync;
dmeta->set_sync_gl = smeta->set_sync_gl;
dmeta->wait = smeta->wait;
dmeta->wait_gl = smeta->wait_gl;
dmeta->wait_cpu = smeta->wait_cpu;
dmeta->wait_cpu_gl = smeta->wait_cpu_gl;
dmeta->copy = smeta->copy;
dmeta->free = smeta->free;
dmeta->free_gl = smeta->free_gl;
GST_LOG ("copying sync meta %p into %p", smeta, dmeta);
smeta->copy (smeta, buffer, dmeta, dest);
}
} else {
/* return FALSE, if transform type is not supported */
return FALSE;
}
return TRUE;
}
static gboolean gst_imx_phys_meta_transform(GstBuffer *dest, GstMeta *meta, GstBuffer *buffer, GQuark type, gpointer data)
{
GstImxPhysMemMeta *dmeta, *smeta;
smeta = (GstImxPhysMemMeta *)meta;
if (GST_META_TRANSFORM_IS_COPY(type))
{
GstMetaTransformCopy *copy = data;
gboolean do_copy = FALSE;
if (!(copy->region))
{
GST_LOG("not copying metadata: only a region is being copied (not the entire block)");
}
else
{
guint n_mem_buffer, n_mem_dest;
n_mem_buffer = gst_buffer_n_memory(buffer);
n_mem_dest = gst_buffer_n_memory(dest);
/* only copy if both buffers have 1 identical memory */
if ((n_mem_buffer == n_mem_dest) && (n_mem_dest == 1))
{
GstMemory *mem1, *mem2;
mem1 = gst_buffer_get_memory(dest, 0);
mem2 = gst_buffer_get_memory(buffer, 0);
if (mem1 == mem2)
{
GST_LOG("copying physmem metadata: memory blocks identical");
do_copy = TRUE;
}
else
GST_LOG("not copying physmem metadata: memory blocks not identical");
gst_memory_unref(mem1);
gst_memory_unref(mem2);
}
else
GST_LOG("not copying physmem metadata: num memory blocks in source/dest: %u/%u", n_mem_buffer, n_mem_dest);
}
if (do_copy)
{
/* only copy if the complete data is copied as well */
dmeta = (GstImxPhysMemMeta *)gst_buffer_add_meta(dest, gst_imx_phys_mem_meta_get_info(), NULL);
if (!dmeta)
{
GST_ERROR("could not add physmem metadata to the dest buffer");
return FALSE;
}
dmeta->phys_addr = smeta->phys_addr;
dmeta->x_padding = smeta->x_padding;
dmeta->y_padding = smeta->y_padding;
if (smeta->parent)
dmeta->parent = gst_buffer_ref(smeta->parent);
else
dmeta->parent = gst_buffer_ref(buffer);
}
}
return TRUE;
}
