static GstCaps *
gst_msdkvpp_fixate_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstMsdkVPP *thiz = GST_MSDKVPP (trans);
GstCaps *result = NULL;
gboolean *use_dmabuf;
if (direction == GST_PAD_SRC) {
result = gst_caps_fixate (result);
use_dmabuf = &thiz->use_sinkpad_dmabuf;
} else {
result = gst_msdkvpp_fixate_srccaps (thiz, caps, othercaps);
use_dmabuf = &thiz->use_srcpad_dmabuf;
}
GST_DEBUG_OBJECT (trans, "fixated to %" GST_PTR_FORMAT, result);
gst_caps_unref (othercaps);
if (pad_can_dmabuf (thiz,
direction == GST_PAD_SRC ? GST_PAD_SINK : GST_PAD_SRC, result)) {
gst_caps_set_features (result, 0,
gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_DMABUF, NULL));
*use_dmabuf = TRUE;
}
return result;
}
static GstCaps *
_set_caps_features_with_passthrough (const GstCaps * caps,
const gchar * feature_name, GstCapsFeatures * passthrough)
{
guint i, j, m, n;
GstCaps *tmp;
tmp = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
GstCapsFeatures *features, *orig_features;
GstStructure *s = gst_caps_get_structure (caps, i);
orig_features = gst_caps_get_features (caps, i);
features = gst_caps_features_new (feature_name, NULL);
if (gst_caps_features_is_any (orig_features)) {
/* if we have any features, we add both the features with and without @passthrough */
gst_caps_append_structure_full (tmp, gst_structure_copy (s),
gst_caps_features_copy (features));
m = gst_caps_features_get_size (passthrough);
for (j = 0; j < m; j++) {
const gchar *feature = gst_caps_features_get_nth (passthrough, j);
/* if we already have the features */
if (gst_caps_features_contains (features, feature))
continue;
gst_caps_features_add (features, feature);
}
} else {
m = gst_caps_features_get_size (orig_features);
for (j = 0; j < m; j++) {
const gchar *feature = gst_caps_features_get_nth (orig_features, j);
/* if we already have the features */
if (gst_caps_features_contains (features, feature))
continue;
if (g_strcmp0 (feature, GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY) == 0)
continue;
if (gst_caps_features_contains (passthrough, feature)) {
gst_caps_features_add (features, feature);
}
}
}
gst_caps_append_structure_full (tmp, gst_structure_copy (s), features);
}
return tmp;
}
static GstCaps *
_set_caps_features (const GstCaps * caps, const gchar * feature_name)
{
GstCaps *tmp = gst_caps_copy (caps);
guint n = gst_caps_get_size (tmp);
guint i = 0;
for (i = 0; i < n; i++) {
GstCapsFeatures *features;
features = gst_caps_features_new (feature_name, NULL);
gst_caps_set_features (tmp, i, features);
}
return tmp;
}
GstCaps *
gst_vaapi_video_format_new_template_caps_with_features (GstVideoFormat format,
const gchar * features_string)
{
GstCaps *caps;
caps = gst_vaapi_video_format_new_template_caps (format);
if (!caps)
return NULL;
GstCapsFeatures *const features =
gst_caps_features_new (features_string, NULL);
if (!features) {
gst_caps_unref (caps);
return NULL;
}
gst_caps_set_features (caps, 0, features);
return caps;
}
static GstCaps *
_set_caps_features_with_passthrough (const GstCaps * caps,
const gchar * feature_name, GstCapsFeatures * passthrough)
{
guint i, j, m, n;
GstCaps *tmp;
tmp = gst_caps_copy (caps);
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
GstCapsFeatures *features, *orig_features;
orig_features = gst_caps_get_features (caps, i);
features = gst_caps_features_new (feature_name, NULL);
m = gst_caps_features_get_size (orig_features);
for (j = 0; j < m; j++) {
const gchar *feature = gst_caps_features_get_nth (orig_features, j);
/* if we already have the features */
if (gst_caps_features_contains (features, feature))
continue;
if (g_strcmp0 (feature, GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY) == 0)
continue;
if (passthrough && gst_caps_features_contains (passthrough, feature)) {
gst_caps_features_add (features, feature);
}
}
gst_caps_set_features (tmp, i, features);
}
return tmp;
}
static gboolean
gst_vaapidecode_update_src_caps (GstVaapiDecode * decode)
{
GstVideoDecoder *const vdec = GST_VIDEO_DECODER (decode);
GstPad *const srcpad = GST_VIDEO_DECODER_SRC_PAD (vdec);
GstCaps *allowed;
GstVideoCodecState *state, *ref_state;
GstVaapiCapsFeature feature;
GstCapsFeatures *features;
GstCaps *allocation_caps;
GstVideoInfo *vi;
GstVideoFormat format;
GstClockTime latency;
gint fps_d, fps_n;
guint width, height;
const gchar *format_str, *feature_str;
if (!decode->input_state)
return FALSE;
ref_state = decode->input_state;
format = GST_VIDEO_INFO_FORMAT (&decode->decoded_info);
allowed = gst_vaapidecode_get_allowed_srcpad_caps (decode);
feature = gst_vaapi_find_preferred_caps_feature (srcpad, allowed, &format);
gst_caps_unref (allowed);
if (feature == GST_VAAPI_CAPS_FEATURE_NOT_NEGOTIATED)
return FALSE;
#if (!USE_GLX && !USE_EGL)
/* This is a very pathological situation. Should not happen. */
if (feature == GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META)
return FALSE;
#endif
if ((feature == GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY ||
feature == GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE)
&& format != GST_VIDEO_INFO_FORMAT (&decode->decoded_info)) {
GST_FIXME_OBJECT (decode, "validate if driver can convert from %s to %s",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT
(&decode->decoded_info)), gst_video_format_to_string (format));
}
width = decode->display_width;
height = decode->display_height;
if (!width || !height) {
width = GST_VIDEO_INFO_WIDTH (&ref_state->info);
height = GST_VIDEO_INFO_HEIGHT (&ref_state->info);
}
state = gst_video_decoder_set_output_state (vdec, format, width, height,
ref_state);
if (!state)
return FALSE;
if (GST_VIDEO_INFO_WIDTH (&state->info) == 0
|| GST_VIDEO_INFO_HEIGHT (&state->info) == 0) {
gst_video_codec_state_unref (state);
return FALSE;
}
vi = &state->info;
state->caps = gst_video_info_to_caps (vi);
switch (feature) {
case GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META:
case GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE:{
GstStructure *structure = gst_caps_get_structure (state->caps, 0);
/* Remove chroma-site and colorimetry from src caps,
* which is unnecessary on downstream if using VASurface
*/
gst_structure_remove_fields (structure, "chroma-site", "colorimetry",
NULL);
feature_str = gst_vaapi_caps_feature_to_string (feature);
features = gst_caps_features_new (feature_str, NULL);
gst_caps_set_features (state->caps, 0, features);
break;
}
default:
break;
}
/* Allocation query is different from pad's caps */
allocation_caps = NULL;
if (GST_VIDEO_INFO_WIDTH (&decode->decoded_info) != width
|| GST_VIDEO_INFO_HEIGHT (&decode->decoded_info) != height) {
allocation_caps = gst_caps_copy (state->caps);
format_str = gst_video_format_to_string (format);
gst_caps_set_simple (allocation_caps,
"width", G_TYPE_INT, GST_VIDEO_INFO_WIDTH (&decode->decoded_info),
"height", G_TYPE_INT, GST_VIDEO_INFO_HEIGHT (&decode->decoded_info),
"format", G_TYPE_STRING, format_str, NULL);
GST_INFO_OBJECT (decode, "new alloc caps = %" GST_PTR_FORMAT,
allocation_caps);
}
gst_caps_replace (&state->allocation_caps, allocation_caps);
if (allocation_caps)
gst_caps_unref (allocation_caps);
GST_INFO_OBJECT (decode, "new src caps = %" GST_PTR_FORMAT, state->caps);
gst_caps_replace (&decode->srcpad_caps, state->caps);
gst_video_codec_state_unref (state);
fps_n = GST_VIDEO_INFO_FPS_N (vi);
fps_d = GST_VIDEO_INFO_FPS_D (vi);
if (fps_n <= 0 || fps_d <= 0) {
GST_DEBUG_OBJECT (decode, "forcing 25/1 framerate for latency calculation");
fps_n = 25;
fps_d = 1;
}
/* For parsing/preparation purposes we'd need at least 1 frame
* latency in general, with perfectly known unit boundaries (NALU,
* AU), and up to 2 frames when we need to wait for the second frame
* start to determine the first frame is complete */
latency = gst_util_uint64_scale (2 * GST_SECOND, fps_d, fps_n);
gst_video_decoder_set_latency (vdec, latency, latency);
return TRUE;
}
static gboolean
gst_vaapidecode_update_src_caps (GstVaapiDecode * decode)
{
GstVideoDecoder *const vdec = GST_VIDEO_DECODER (decode);
GstVideoCodecState *state, *ref_state;
GstVideoInfo *vi;
GstVideoFormat format = GST_VIDEO_FORMAT_I420;
if (!decode->input_state)
return FALSE;
ref_state = decode->input_state;
GstCapsFeatures *features = NULL;
GstVaapiCapsFeature feature;
feature =
gst_vaapi_find_preferred_caps_feature (GST_VIDEO_DECODER_SRC_PAD (vdec),
GST_VIDEO_INFO_FORMAT (&ref_state->info), &format);
if (feature == GST_VAAPI_CAPS_FEATURE_NOT_NEGOTIATED)
return FALSE;
switch (feature) {
#if (USE_GLX || USE_EGL)
case GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META:
features =
gst_caps_features_new
(GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META, NULL);
break;
#endif
#if GST_CHECK_VERSION(1,3,1)
case GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE:
features =
gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE, NULL);
break;
#endif
default:
break;
}
state = gst_video_decoder_set_output_state (vdec, format,
ref_state->info.width, ref_state->info.height, ref_state);
if (!state || state->info.width == 0 || state->info.height == 0)
return FALSE;
vi = &state->info;
state->caps = gst_video_info_to_caps (vi);
if (features)
gst_caps_set_features (state->caps, 0, features);
GST_INFO_OBJECT (decode, "new src caps = %" GST_PTR_FORMAT, state->caps);
gst_caps_replace (&decode->srcpad_caps, state->caps);
gst_video_codec_state_unref (state);
gint fps_n = GST_VIDEO_INFO_FPS_N (vi);
gint fps_d = GST_VIDEO_INFO_FPS_D (vi);
if (fps_n <= 0 || fps_d <= 0) {
GST_DEBUG_OBJECT (decode, "forcing 25/1 framerate for latency calculation");
fps_n = 25;
fps_d = 1;
}
/* For parsing/preparation purposes we'd need at least 1 frame
* latency in general, with perfectly known unit boundaries (NALU,
* AU), and up to 2 frames when we need to wait for the second frame
* start to determine the first frame is complete */
GstClockTime latency = gst_util_uint64_scale (2 * GST_SECOND, fps_d, fps_n);
gst_video_decoder_set_latency (vdec, latency, latency);
return TRUE;
}
GstCaps *
gst_egl_adaptation_fill_supported_fbuffer_configs (GstEglAdaptationContext *
ctx)
{
GstCaps *caps = NULL, *copy1, *copy2;
guint i, n;
GST_DEBUG_OBJECT (ctx->element,
"Building initial list of wanted eglattribs per format");
/* Init supported format/caps list */
if (_gst_egl_choose_config (ctx, TRUE, NULL)) {
caps = gst_caps_new_empty ();
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_RGBA));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_BGRA));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_ARGB));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_ABGR));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_RGBx));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_BGRx));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_xRGB));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_xBGR));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_AYUV));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_Y444));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_RGB));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_BGR));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_I420));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_YV12));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_NV12));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_NV21));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_Y42B));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_Y41B));
gst_caps_append (caps,
_gst_video_format_new_template_caps (GST_VIDEO_FORMAT_RGB16));
copy1 = gst_caps_copy (caps);
copy2 = gst_caps_copy (caps);
#ifndef HAVE_IOS
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
GstCapsFeatures *features =
gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_EGL_IMAGE, NULL);
gst_caps_set_features (caps, i, features);
}
#endif
n = gst_caps_get_size (copy1);
for (i = 0; i < n; i++) {
GstCapsFeatures *features =
gst_caps_features_new
(GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META, NULL);
gst_caps_set_features (copy1, i, features);
}
gst_caps_append (caps, copy1);
gst_caps_append (caps, copy2);
} else {
GST_INFO_OBJECT (ctx->element,
"EGL display doesn't support RGBA8888 config");
}
return caps;
}
static GstCaps *
gst_mfxpostproc_transform_caps_impl (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps)
{
GstMfxPostproc *const vpp = GST_MFXPOSTPROC (trans);
GstVideoInfo vi, peer_vi;
GstVideoFormat out_format;
GstCaps *out_caps, *peer_caps;
GstMfxCapsFeature feature;
const gchar *feature_str;
guint width, height;
/* Generate the sink pad caps, that could be fixated afterwards */
if (direction == GST_PAD_SRC) {
if (!ensure_allowed_sinkpad_caps (vpp))
return NULL;
return gst_caps_ref (vpp->allowed_sinkpad_caps);
}
/* Generate complete set of src pad caps if non-fixated sink pad
* caps are provided */
if (!gst_caps_is_fixed (caps)) {
if (!ensure_allowed_srcpad_caps (vpp))
return NULL;
return gst_caps_ref (vpp->allowed_srcpad_caps);
}
/* Generate the expected src pad caps, from the current fixated
* sink pad caps */
if (!gst_video_info_from_caps (&vi, caps))
return NULL;
if (vpp->deinterlace_mode)
GST_VIDEO_INFO_INTERLACE_MODE (&vi) = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
/* Update size from user-specified parameters */
find_best_size (vpp, &vi, &width, &height);
/* Update format from user-specified parameters */
peer_caps = gst_pad_peer_query_caps (GST_BASE_TRANSFORM_SRC_PAD (trans),
vpp->allowed_srcpad_caps);
if (gst_caps_is_any (peer_caps) || gst_caps_is_empty (peer_caps))
return peer_caps;
if (!gst_caps_is_fixed (peer_caps))
peer_caps = gst_caps_fixate (peer_caps);
gst_video_info_from_caps (&peer_vi, peer_caps);
out_format = GST_VIDEO_INFO_FPS_N (&peer_vi);
/* Update width and height from the caps */
if (GST_VIDEO_INFO_HEIGHT (&peer_vi) != 1 &&
GST_VIDEO_INFO_WIDTH (&peer_vi) != 1)
find_best_size(vpp, &peer_vi, &width, &height);
if (vpp->format != DEFAULT_FORMAT)
out_format = vpp->format;
if (vpp->fps_n) {
GST_VIDEO_INFO_FPS_N (&vi) = vpp->fps_n;
GST_VIDEO_INFO_FPS_D (&vi) = vpp->fps_d;
vpp->field_duration = gst_util_uint64_scale (GST_SECOND,
vpp->fps_d, vpp->fps_n);
if (DEFAULT_FRC_ALG == vpp->alg)
vpp->alg = GST_MFX_FRC_PRESERVE_TIMESTAMP;
}
if (peer_caps)
gst_caps_unref (peer_caps);
feature =
gst_mfx_find_preferred_caps_feature (GST_BASE_TRANSFORM_SRC_PAD (trans),
&out_format);
gst_video_info_change_format (&vi, out_format, width, height);
out_caps = gst_video_info_to_caps (&vi);
if (!out_caps)
return NULL;
if (feature) {
feature_str = gst_mfx_caps_feature_to_string (feature);
if (feature_str)
gst_caps_set_features (out_caps, 0,
gst_caps_features_new (feature_str, NULL));
}
if (vpp->format != out_format)
vpp->format = out_format;
return out_caps;
}
static void
gst_droidcamsrc_stream_window_reset_buffer_pool_locked
(GstDroidCamSrcStreamWindow * win)
{
GstStructure *config;
GstCaps *caps;
GstCapsFeatures *feature;
GST_DEBUG ("stream window configure buffer pool");
if (win->pool) {
/* we will ignore the error here */
if (!gst_buffer_pool_set_active (GST_BUFFER_POOL (win->pool), FALSE)) {
GST_WARNING ("Failed to deactivate buffer pool");
}
gst_object_unref (win->pool);
}
win->pool = gst_droid_cam_src_buffer_pool_new (win->info);
if (!win->count || !win->width || !win->height || !win->usage || !win->format) {
GST_ERROR ("incomplete configuration");
goto clean_and_out;
}
config = gst_buffer_pool_get_config (GST_BUFFER_POOL (win->pool));
if (!config) {
GST_ERROR ("failed to get buffer pool config");
goto clean_and_out;
}
/* TODO: 30 is hardcoded */
caps = gst_caps_new_simple ("video/x-raw",
"format", G_TYPE_STRING, "ENCODED",
"width", G_TYPE_INT, win->width,
"height", G_TYPE_INT, win->height,
"framerate", GST_TYPE_FRACTION, 30, 1, NULL);
feature = gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_DROID_HANDLE, NULL);
gst_caps_set_features (caps, 0, feature);
gst_buffer_pool_config_set_params (config, caps, 0, win->count, win->count);
gst_buffer_pool_config_set_allocator (config, win->allocator, NULL);
gst_structure_set (config,
GST_DROIDCAMSRC_BUFFER_POOL_USAGE_KEY, G_TYPE_INT, win->usage,
GST_DROIDCAMSRC_BUFFER_POOL_WIDTH_KEY, G_TYPE_INT, win->width,
GST_DROIDCAMSRC_BUFFER_POOL_HEIGHT_KEY, G_TYPE_INT, win->height,
GST_DROIDCAMSRC_BUFFER_POOL_FORMAT_KEY, G_TYPE_INT, win->format, NULL);
gst_caps_unref (caps);
if (!gst_buffer_pool_set_config (GST_BUFFER_POOL (win->pool), config)) {
GST_ERROR ("failed to set buffer pool config");
goto clean_and_out;
}
if (!gst_buffer_pool_set_active (GST_BUFFER_POOL (win->pool), TRUE)) {
GST_ERROR ("failed to activate buffer pool");
goto clean_and_out;
}
win->needs_reconfigure = FALSE;
return;
clean_and_out:
if (win->pool) {
gst_object_unref (win->pool);
win->pool = NULL;
}
}
static gboolean
gst_msdkdec_set_src_caps (GstMsdkDec * thiz, gboolean need_allocation)
{
GstVideoCodecState *output_state;
GstVideoInfo *vinfo;
GstVideoAlignment align;
GstCaps *allocation_caps = NULL;
GstVideoFormat format;
guint width, height;
const gchar *format_str;
/* use display width and display height in output state which
* will be using for caps negotiation */
width =
thiz->param.mfx.FrameInfo.CropW ? thiz->param.mfx.
FrameInfo.CropW : GST_VIDEO_INFO_WIDTH (&thiz->input_state->info);
height =
thiz->param.mfx.FrameInfo.CropH ? thiz->param.mfx.
FrameInfo.CropH : GST_VIDEO_INFO_HEIGHT (&thiz->input_state->info);
format =
gst_msdk_get_video_format_from_mfx_fourcc (thiz->param.mfx.
FrameInfo.FourCC);
if (format == GST_VIDEO_FORMAT_UNKNOWN) {
GST_WARNING_OBJECT (thiz, "Failed to find a valid video format\n");
return FALSE;
}
output_state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (thiz),
format, width, height, thiz->input_state);
if (!output_state)
return FALSE;
/* Ensure output_state->caps and info has same width and height
* Also mandate the 32 bit alignment */
vinfo = &output_state->info;
gst_msdk_set_video_alignment (vinfo, &align);
gst_video_info_align (vinfo, &align);
output_state->caps = gst_video_info_to_caps (vinfo);
if (srcpad_can_dmabuf (thiz))
gst_caps_set_features (output_state->caps, 0,
gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_DMABUF, NULL));
thiz->output_info = output_state->info;
if (need_allocation) {
/* Find allocation width and height */
width =
GST_ROUND_UP_16 (thiz->param.mfx.FrameInfo.Width ? thiz->param.mfx.
FrameInfo.Width : GST_VIDEO_INFO_WIDTH (&output_state->info));
height =
GST_ROUND_UP_32 (thiz->param.mfx.FrameInfo.Height ? thiz->param.mfx.
FrameInfo.Height : GST_VIDEO_INFO_HEIGHT (&output_state->info));
/* set allocation width and height in allocation_caps
* which may or may not be similar to the output_state caps */
allocation_caps = gst_caps_copy (output_state->caps);
format_str =
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&thiz->output_info));
gst_caps_set_simple (allocation_caps, "width", G_TYPE_INT, width, "height",
G_TYPE_INT, height, "format", G_TYPE_STRING, format_str, NULL);
GST_INFO_OBJECT (thiz, "new alloc caps = %" GST_PTR_FORMAT,
allocation_caps);
gst_caps_replace (&thiz->allocation_caps, allocation_caps);
} else {
/* We keep the allocation parameters as it is to avoid pool renegotiation.
* For codecs like VP9, dynamic resolution change doesn't requires allocation
* reset if the new video frame resolution is lower than the
* already configured one */
allocation_caps = gst_caps_copy (thiz->allocation_caps);
}
gst_caps_replace (&output_state->allocation_caps, allocation_caps);
if (allocation_caps)
gst_caps_unref (allocation_caps);
gst_video_codec_state_unref (output_state);
return TRUE;
}