static void
print_caps (const GstCaps * caps, const gchar * pfx)
{
guint i;
g_return_if_fail (caps != NULL);
if (gst_caps_is_any (caps)) {
n_print ("%sANY\n", pfx);
return;
}
if (gst_caps_is_empty (caps)) {
n_print ("%sEMPTY\n", pfx);
return;
}
for (i = 0; i < gst_caps_get_size (caps); i++) {
GstStructure *structure = gst_caps_get_structure (caps, i);
GstCapsFeatures *features = gst_caps_get_features (caps, i);
if (features && (gst_caps_features_is_any (features) ||
!gst_caps_features_is_equal (features,
GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY))) {
gchar *features_string = gst_caps_features_to_string (features);
n_print ("%s%s(%s)\n", pfx, gst_structure_get_name (structure),
features_string);
g_free (features_string);
} else {
n_print ("%s%s\n", pfx, gst_structure_get_name (structure));
}
gst_structure_foreach (structure, print_field, (gpointer) pfx);
}
}
/**
* gst_dvbsub_overlay_intersect_by_feature:
*
* Creates a new #GstCaps based on the following filtering rule.
*
* For each individual caps contained in given caps, if the
* caps uses the given caps feature, keep a version of the caps
* with the feature and an another one without. Otherwise, intersect
* the caps with the given filter.
*
* Returns: the new #GstCaps
*/
static GstCaps *
gst_dvbsub_overlay_intersect_by_feature (GstCaps * caps,
const gchar * feature, GstCaps * filter)
{
int i, caps_size;
GstCaps *new_caps;
new_caps = gst_caps_new_empty ();
caps_size = gst_caps_get_size (caps);
for (i = 0; i < caps_size; i++) {
GstStructure *caps_structure = gst_caps_get_structure (caps, i);
GstCapsFeatures *caps_features =
gst_caps_features_copy (gst_caps_get_features (caps, i));
GstCaps *filtered_caps;
GstCaps *simple_caps =
gst_caps_new_full (gst_structure_copy (caps_structure), NULL);
gst_caps_set_features (simple_caps, 0, caps_features);
if (gst_caps_features_contains (caps_features, feature)) {
gst_caps_append (new_caps, gst_caps_copy (simple_caps));
gst_caps_features_remove (caps_features, feature);
filtered_caps = gst_caps_ref (simple_caps);
} else {
filtered_caps = gst_caps_intersect_full (simple_caps, filter,
GST_CAPS_INTERSECT_FIRST);
}
gst_caps_unref (simple_caps);
gst_caps_append (new_caps, filtered_caps);
}
return new_caps;
}
static GstCaps *
gst_gl_mixer_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 = gst_caps_get_features (tmp, i);
if (features) {
guint n_f = gst_caps_features_get_size (features);
guint j = 0;
for (j = 0; j < n_f; j++) {
gst_caps_features_remove_id (features,
gst_caps_features_get_nth_id (features, j));
}
}
gst_caps_features_add (features, feature_name);
gst_caps_set_simple (tmp, "format", G_TYPE_STRING, "RGBA", NULL);
}
return tmp;
}
/* Checks whether the supplied caps contain VA surfaces */
gboolean
gst_caps_has_vaapi_surface (GstCaps * caps)
{
gboolean found_caps = FALSE;
guint i, num_structures;
g_return_val_if_fail (caps != NULL, FALSE);
num_structures = gst_caps_get_size (caps);
if (num_structures < 1)
return FALSE;
for (i = 0; i < num_structures && !found_caps; i++) {
GstCapsFeatures *const features = gst_caps_get_features (caps, i);
#if GST_CHECK_VERSION(1,3,0)
/* Skip ANY features, we need an exact match for correct evaluation */
if (gst_caps_features_is_any (features))
continue;
#endif
found_caps = gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE);
}
return found_caps;
}
/* copies the given caps */
static GstCaps *
gst_video_convert_caps_remove_format_info (GstCaps * caps)
{
GstStructure *st;
GstCapsFeatures *f;
gint i, n;
GstCaps *res;
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
st = gst_caps_get_structure (caps, i);
f = gst_caps_get_features (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure_full (res, st, f))
continue;
st = gst_structure_copy (st);
/* Only remove format info for the cases when we can actually convert */
if (!gst_caps_features_is_any (f)
&& gst_caps_features_is_equal (f,
GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY))
gst_structure_remove_fields (st, "format", "colorimetry", "chroma-site",
NULL);
gst_caps_append_structure_full (res, st, gst_caps_features_copy (f));
}
return res;
}
static GstCaps *
gst_video_scale_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *ret;
GstStructure *structure;
GstCapsFeatures *features;
gint i, n;
GST_DEBUG_OBJECT (trans,
"Transforming caps %" GST_PTR_FORMAT " in direction %s", caps,
(direction == GST_PAD_SINK) ? "sink" : "src");
ret = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
structure = gst_caps_get_structure (caps, i);
features = gst_caps_get_features (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure_full (ret, structure, features))
continue;
/* make copy */
structure = gst_structure_copy (structure);
/* If the features are non-sysmem we can only do passthrough */
if (!gst_caps_features_is_any (features)
&& gst_caps_features_is_equal (features,
GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY)) {
gst_structure_set (structure, "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
/* if pixel aspect ratio, make a range of it */
if (gst_structure_has_field (structure, "pixel-aspect-ratio")) {
gst_structure_set (structure, "pixel-aspect-ratio",
GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1, NULL);
}
}
gst_caps_append_structure_full (ret, structure,
gst_caps_features_copy (features));
}
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, ret, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (ret);
ret = intersection;
}
GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, ret);
return ret;
}
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 gboolean
_gst_caps_has_feature (const GstCaps * caps, const gchar * feature)
{
guint i;
for (i = 0; i < gst_caps_get_size (caps); i++) {
GstCapsFeatures *const features = gst_caps_get_features (caps, i);
/* Skip ANY features, we need an exact match for correct evaluation */
if (gst_caps_features_is_any (features))
continue;
if (gst_caps_features_contains (features, feature))
return TRUE;
}
return FALSE;
}
GstCaps *
gst_gl_overlay_compositor_add_caps (GstCaps * caps)
{
GstCaps *composition_caps;
int i;
composition_caps = gst_caps_copy (caps);
for (i = 0; i < gst_caps_get_size (composition_caps); i++) {
GstCapsFeatures *f = gst_caps_get_features (composition_caps, i);
gst_caps_features_add (f,
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
}
caps = gst_caps_merge (composition_caps, caps);
return caps;
}
static gboolean
gst_vtdec_negotiate_output_format (GstVtdec * vtdec,
GstVideoCodecState * input_state)
{
GstCaps *caps = NULL, *peercaps = NULL, *templcaps;
GstVideoFormat output_format;
GstVideoCodecState *output_state = NULL;
GstCapsFeatures *features;
GstStructure *structure;
const gchar *s;
peercaps = gst_pad_peer_query_caps (GST_VIDEO_DECODER_SRC_PAD (vtdec), NULL);
/* Check if output supports GL caps by preference */
templcaps = gst_pad_get_pad_template_caps (GST_VIDEO_DECODER_SRC_PAD (vtdec));
caps =
gst_caps_intersect_full (templcaps, peercaps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (peercaps);
gst_caps_unref (templcaps);
caps = gst_caps_truncate (caps);
structure = gst_caps_get_structure (caps, 0);
s = gst_structure_get_string (structure, "format");
output_format = gst_video_format_from_string (s);
features = gst_caps_features_copy (gst_caps_get_features (caps, 0));
gst_caps_unref (caps);
if (!gst_vtdec_create_session (vtdec, output_format)) {
gst_caps_features_free (features);
return FALSE;
}
output_state = gst_video_decoder_set_output_state (GST_VIDEO_DECODER (vtdec),
output_format, vtdec->video_info.width, vtdec->video_info.height,
input_state);
output_state->caps = gst_video_info_to_caps (&output_state->info);
gst_caps_set_features (output_state->caps, 0, features);
return TRUE;
}
/***********************************************************
* Name: init_textures
*
* Arguments:
* APP_STATE_T *state - holds OGLES model info
*
* Description: Initialise OGL|ES texture surfaces to use image
* buffers
*
* Returns: void
*
***********************************************************/
static void
init_textures (APP_STATE_T * state, GstBuffer * buffer)
{
GstCapsFeatures *feature = gst_caps_get_features (state->caps, 0);
if (gst_caps_features_contains (feature, "memory:EGLImage")) {
/* nothing special to do */
g_print ("Prepare texture for EGLImage\n");
state->can_avoid_upload = FALSE;
glGenTextures (1, &state->tex);
glBindTexture (GL_TEXTURE_2D, state->tex);
} else if (gst_caps_features_contains (feature, "memory:GLMemory")) {
g_print ("Prepare texture for GLMemory\n");
state->can_avoid_upload = TRUE;
state->tex = 0;
} else if (gst_caps_features_contains (feature,
"meta:GstVideoGLTextureUploadMeta")) {
GstVideoMeta *meta = NULL;
g_print ("Prepare texture for GstVideoGLTextureUploadMeta\n");
meta = gst_buffer_get_video_meta (buffer);
state->can_avoid_upload = FALSE;
glGenTextures (1, &state->tex);
glBindTexture (GL_TEXTURE_2D, state->tex);
glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA8, meta->width, meta->height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, NULL);
} else {
g_assert_not_reached ();
}
#if 0
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
#else
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
#endif
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
assert (glGetError () == GL_NO_ERROR);
}
/*
* Takes caps and copies its video fields to tmpl_caps
*/
static GstCaps *
__gst_video_element_proxy_caps (GstElement * element, GstCaps * templ_caps,
GstCaps * caps)
{
GstCaps *result = gst_caps_new_empty ();
gint i, j;
gint templ_caps_size = gst_caps_get_size (templ_caps);
gint caps_size = gst_caps_get_size (caps);
for (i = 0; i < templ_caps_size; i++) {
GQuark q_name =
gst_structure_get_name_id (gst_caps_get_structure (templ_caps, i));
GstCapsFeatures *features = gst_caps_get_features (templ_caps, i);
for (j = 0; j < caps_size; j++) {
const GstStructure *caps_s = gst_caps_get_structure (caps, j);
const GValue *val;
GstStructure *s;
GstCaps *tmp = gst_caps_new_empty ();
s = gst_structure_new_id_empty (q_name);
if ((val = gst_structure_get_value (caps_s, "width")))
gst_structure_set_value (s, "width", val);
if ((val = gst_structure_get_value (caps_s, "height")))
gst_structure_set_value (s, "height", val);
if ((val = gst_structure_get_value (caps_s, "framerate")))
gst_structure_set_value (s, "framerate", val);
if ((val = gst_structure_get_value (caps_s, "pixel-aspect-ratio")))
gst_structure_set_value (s, "pixel-aspect-ratio", val);
if ((val = gst_structure_get_value (caps_s, "colorimetry")))
gst_structure_set_value (s, "colorimetry", val);
if ((val = gst_structure_get_value (caps_s, "chroma-site")))
gst_structure_set_value (s, "chroma-site", val);
gst_caps_append_structure_full (tmp, s,
gst_caps_features_copy (features));
result = gst_caps_merge (result, tmp);
}
}
return result;
}
/**
* gst_dvbsub_overlay_add_feature_and_intersect:
*
* Creates a new #GstCaps containing the (given caps +
* given caps feature) + (given caps intersected by the
* given filter).
*
* Returns: the new #GstCaps
*/
static GstCaps *
gst_dvbsub_overlay_add_feature_and_intersect (GstCaps * caps,
const gchar * feature, GstCaps * filter)
{
int i, caps_size;
GstCaps *new_caps;
new_caps = gst_caps_copy (caps);
caps_size = gst_caps_get_size (new_caps);
for (i = 0; i < caps_size; i++) {
GstCapsFeatures *features = gst_caps_get_features (new_caps, i);
if (!gst_caps_features_is_any (features)) {
gst_caps_features_add (features, feature);
}
}
gst_caps_append (new_caps, gst_caps_intersect_full (caps,
filter, GST_CAPS_INTERSECT_FIRST));
return new_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;
}
/*
* Takes caps and copies its audio fields to tmpl_caps
*/
static GstCaps *
__gst_audio_element_proxy_caps (GstElement * element, GstCaps * templ_caps,
GstCaps * caps)
{
GstCaps *result = gst_caps_new_empty ();
gint i, j;
gint templ_caps_size = gst_caps_get_size (templ_caps);
gint caps_size = gst_caps_get_size (caps);
for (i = 0; i < templ_caps_size; i++) {
GQuark q_name =
gst_structure_get_name_id (gst_caps_get_structure (templ_caps, i));
GstCapsFeatures *features = gst_caps_get_features (templ_caps, i);
for (j = 0; j < caps_size; j++) {
const GstStructure *caps_s = gst_caps_get_structure (caps, j);
const GValue *val;
GstStructure *s;
GstCaps *tmp = gst_caps_new_empty ();
s = gst_structure_new_id_empty (q_name);
if ((val = gst_structure_get_value (caps_s, "rate")))
gst_structure_set_value (s, "rate", val);
if ((val = gst_structure_get_value (caps_s, "channels")))
gst_structure_set_value (s, "channels", val);
if ((val = gst_structure_get_value (caps_s, "channels-mask")))
gst_structure_set_value (s, "channels-mask", val);
gst_caps_append_structure_full (tmp, s,
gst_caps_features_copy (features));
result = gst_caps_merge (result, tmp);
}
}
return result;
}
GstCaps *
gst_gl_caps_replace_all_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 = gst_caps_get_features (tmp, i);
if (features) {
guint n_f = gst_caps_features_get_size (features);
guint j = 0;
for (j = 0; j < n_f; j++) {
gst_caps_features_remove_id (features,
gst_caps_features_get_nth_id (features, j));
}
}
gst_caps_features_add (features, feature_name);
}
return tmp;
}
gboolean _owr_gst_caps_foreach(const GstCaps *caps, OwrGstCapsForeachFunc func, gpointer user_data)
{
guint i, n;
GstCapsFeatures *features;
GstStructure *structure;
gboolean ret;
g_return_val_if_fail(GST_IS_CAPS(caps), FALSE);
g_return_val_if_fail(func != NULL, FALSE);
n = gst_caps_get_size(caps);
for (i = 0; i < n; i++) {
features = gst_caps_get_features(caps, i);
structure = gst_caps_get_structure(caps, i);
if (features && structure) {
ret = func(features, structure, user_data);
if (G_UNLIKELY(!ret))
return FALSE;
}
}
return TRUE;
}
GstVaapiCapsFeature
gst_vaapi_find_preferred_caps_feature (GstPad * pad, GstCaps * allowed_caps,
GstVideoFormat * out_format_ptr)
{
GstVaapiCapsFeature feature = GST_VAAPI_CAPS_FEATURE_NOT_NEGOTIATED;
guint i, j, num_structures;
GstCaps *peer_caps, *out_caps = NULL, *caps = NULL;
static const guint feature_list[] = { GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE,
GST_VAAPI_CAPS_FEATURE_DMABUF,
GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META,
GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY,
};
/* query with no filter */
peer_caps = gst_pad_peer_query_caps (pad, NULL);
if (!peer_caps)
goto cleanup;
if (gst_caps_is_empty (peer_caps))
goto cleanup;
/* filter against our allowed caps */
out_caps = gst_caps_intersect_full (allowed_caps, peer_caps,
GST_CAPS_INTERSECT_FIRST);
/* default feature */
feature = GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY;
/* if downstream requests caps ANY, system memory is preferred */
if (gst_caps_is_any (peer_caps))
goto find_format;
num_structures = gst_caps_get_size (out_caps);
for (i = 0; i < num_structures; i++) {
GstCapsFeatures *const features = gst_caps_get_features (out_caps, i);
GstStructure *const structure = gst_caps_get_structure (out_caps, i);
/* Skip ANY features, we need an exact match for correct evaluation */
if (gst_caps_features_is_any (features))
continue;
gst_caps_replace (&caps, NULL);
caps = gst_caps_new_full (gst_structure_copy (structure), NULL);
if (!caps)
continue;
gst_caps_set_features (caps, 0, gst_caps_features_copy (features));
for (j = 0; j < G_N_ELEMENTS (feature_list); j++) {
if (gst_vaapi_caps_feature_contains (caps, feature_list[j])
&& feature < feature_list[j]) {
feature = feature_list[j];
break;
}
}
/* Stop at the first match, the caps should already be sorted out
by preference order from downstream elements */
if (feature != GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY)
break;
}
if (!caps)
goto cleanup;
find_format:
if (out_format_ptr) {
GstVideoFormat out_format;
GstStructure *structure = NULL;
const GValue *format_list;
GstCapsFeatures *features;
/* if the best feature is SystemMemory, we should choose the
* vidoe/x-raw caps in the filtered peer caps set. If not, use
* the first caps, which is the preferred by downstream. */
if (feature == GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY) {
gst_caps_replace (&caps, out_caps);
num_structures = gst_caps_get_size (caps);
for (i = 0; i < num_structures; i++) {
structure = gst_caps_get_structure (caps, i);
features = gst_caps_get_features (caps, i);
if (!gst_caps_features_is_any (features)
&& gst_caps_features_contains (features,
gst_vaapi_caps_feature_to_string
(GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY)))
break;
}
} else {
structure = gst_caps_get_structure (caps, 0);
}
if (!structure)
goto cleanup;
format_list = gst_structure_get_value (structure, "format");
if (!format_list)
goto cleanup;
out_format = gst_vaapi_find_preferred_format (format_list, *out_format_ptr);
if (out_format == GST_VIDEO_FORMAT_UNKNOWN)
goto cleanup;
*out_format_ptr = out_format;
}
cleanup:
gst_caps_replace (&caps, NULL);
gst_caps_replace (&out_caps, NULL);
gst_caps_replace (&peer_caps, NULL);
return feature;
}
static gboolean
gst_msdkvpp_set_caps (GstBaseTransform * trans, GstCaps * caps,
GstCaps * out_caps)
{
GstMsdkVPP *thiz = GST_MSDKVPP (trans);
GstVideoInfo in_info, out_info;
gboolean sinkpad_info_changed = FALSE;
gboolean srcpad_info_changed = FALSE;
gboolean deinterlace;
if (gst_caps_get_features (caps, 0) != gst_caps_get_features (out_caps, 0))
thiz->need_vpp = 1;
gst_video_info_from_caps (&in_info, caps);
gst_video_info_from_caps (&out_info, out_caps);
if (!gst_video_info_is_equal (&in_info, &thiz->sinkpad_info))
sinkpad_info_changed = TRUE;
if (!gst_video_info_is_equal (&out_info, &thiz->srcpad_info))
srcpad_info_changed = TRUE;
thiz->sinkpad_info = in_info;
thiz->srcpad_info = out_info;
#ifndef _WIN32
thiz->use_video_memory = TRUE;
#else
thiz->use_video_memory = FALSE;
#endif
if (!sinkpad_info_changed && !srcpad_info_changed && thiz->initialized)
return TRUE;
/* check for deinterlace requirement */
deinterlace = gst_msdkvpp_is_deinterlace_enabled (thiz, &in_info);
if (deinterlace)
thiz->flags |= GST_MSDK_FLAG_DEINTERLACE;
thiz->buffer_duration = GST_VIDEO_INFO_FPS_N (&out_info) > 0 ?
gst_util_uint64_scale (GST_SECOND, GST_VIDEO_INFO_FPS_D (&out_info),
GST_VIDEO_INFO_FPS_N (&out_info)) : 0;
if (!gst_msdkvpp_initialize (thiz))
return FALSE;
/* set passthrough according to filter operation change */
gst_msdkvpp_set_passthrough (thiz);
/* Ensure sinkpad buffer pool */
thiz->sinkpad_buffer_pool =
gst_msdkvpp_create_buffer_pool (thiz, GST_PAD_SINK, caps,
thiz->in_num_surfaces);
if (!thiz->sinkpad_buffer_pool) {
GST_ERROR_OBJECT (thiz, "Failed to ensure the sinkpad buffer pool");
return FALSE;
}
/* Ensure a srcpad buffer pool */
thiz->srcpad_buffer_pool =
gst_msdkvpp_create_buffer_pool (thiz, GST_PAD_SRC, out_caps,
thiz->out_num_surfaces);
if (!thiz->srcpad_buffer_pool) {
GST_ERROR_OBJECT (thiz, "Failed to ensure the srcpad buffer pool");
return FALSE;
}
return TRUE;
}
static gboolean
gst_vtdec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
gboolean ret;
GstCaps *caps;
GstCapsFeatures *features;
GstVtdec *vtdec = GST_VTDEC (decoder);
ret =
GST_VIDEO_DECODER_CLASS (gst_vtdec_parent_class)->decide_allocation
(decoder, query);
if (!ret)
goto out;
gst_query_parse_allocation (query, &caps, NULL);
if (caps) {
GstGLContext *gl_context = NULL;
features = gst_caps_get_features (caps, 0);
if (gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) {
GstContext *context = NULL;
GstQuery *query = gst_query_new_context ("gst.gl.local_context");
if (gst_pad_peer_query (GST_VIDEO_DECODER_SRC_PAD (decoder), query)) {
gst_query_parse_context (query, &context);
if (context) {
const GstStructure *s = gst_context_get_structure (context);
gst_structure_get (s, "context", GST_GL_TYPE_CONTEXT, &gl_context,
NULL);
}
}
gst_query_unref (query);
if (context) {
GstVideoFormat internal_format;
GstVideoCodecState *output_state =
gst_video_decoder_get_output_state (decoder);
GST_INFO_OBJECT (decoder, "pushing textures. GL context %p", context);
if (vtdec->texture_cache)
gst_core_video_texture_cache_free (vtdec->texture_cache);
#ifdef HAVE_IOS
internal_format = GST_VIDEO_FORMAT_NV12;
#else
internal_format = GST_VIDEO_FORMAT_UYVY;
#endif
vtdec->texture_cache = gst_core_video_texture_cache_new (gl_context);
gst_core_video_texture_cache_set_format (vtdec->texture_cache,
internal_format, output_state->caps);
gst_video_codec_state_unref (output_state);
gst_object_unref (gl_context);
} else {
GST_WARNING_OBJECT (decoder,
"got memory:GLMemory caps but not GL context from downstream element");
}
}
}
out:
return ret;
}
/* Based on gstbasetextoverlay.c */
static gboolean
gst_overlay_composition_negotiate (GstOverlayComposition * self, GstCaps * caps)
{
gboolean upstream_has_meta = FALSE;
gboolean caps_has_meta = FALSE;
gboolean alloc_has_meta = FALSE;
gboolean attach = FALSE;
gboolean ret = TRUE;
guint width, height;
GstCapsFeatures *f;
GstCaps *overlay_caps;
GstQuery *query;
guint alloc_index;
GST_DEBUG_OBJECT (self, "performing negotiation");
/* Clear any pending reconfigure to avoid negotiating twice */
gst_pad_check_reconfigure (self->srcpad);
self->window_width = self->window_height = 0;
if (!caps)
caps = gst_pad_get_current_caps (self->sinkpad);
else
gst_caps_ref (caps);
if (!caps || gst_caps_is_empty (caps))
goto no_format;
/* Check if upstream caps have meta */
if ((f = gst_caps_get_features (caps, 0))) {
upstream_has_meta = gst_caps_features_contains (f,
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
}
/* Initialize dimensions */
width = self->info.width;
height = self->info.height;
if (upstream_has_meta) {
overlay_caps = gst_caps_ref (caps);
} else {
GstCaps *peercaps;
/* BaseTransform requires caps for the allocation query to work */
overlay_caps = gst_caps_copy (caps);
f = gst_caps_get_features (overlay_caps, 0);
gst_caps_features_add (f,
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
/* Then check if downstream accept overlay composition in caps */
/* FIXME: We should probably check if downstream *prefers* the
* overlay meta, and only enforce usage of it if we can't handle
* the format ourselves and thus would have to drop the overlays.
* Otherwise we should prefer what downstream wants here.
*/
peercaps = gst_pad_peer_query_caps (self->srcpad, overlay_caps);
caps_has_meta = !gst_caps_is_empty (peercaps);
gst_caps_unref (peercaps);
GST_DEBUG_OBJECT (self, "caps have overlay meta %d", caps_has_meta);
}
if (upstream_has_meta || caps_has_meta) {
/* Send caps immediatly, it's needed by GstBaseTransform to get a reply
* from allocation query */
ret = gst_pad_set_caps (self->srcpad, overlay_caps);
/* First check if the allocation meta has compositon */
query = gst_query_new_allocation (overlay_caps, FALSE);
if (!gst_pad_peer_query (self->srcpad, query)) {
/* no problem, we use the query defaults */
GST_DEBUG_OBJECT (self, "ALLOCATION query failed");
/* In case we were flushing, mark reconfigure and fail this method,
* will make it retry */
if (GST_PAD_IS_FLUSHING (self->srcpad))
ret = FALSE;
}
alloc_has_meta = gst_query_find_allocation_meta (query,
GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, &alloc_index);
GST_DEBUG_OBJECT (self, "sink alloc has overlay meta %d", alloc_has_meta);
if (alloc_has_meta) {
const GstStructure *params;
gst_query_parse_nth_allocation_meta (query, alloc_index, ¶ms);
if (params) {
if (gst_structure_get (params, "width", G_TYPE_UINT, &width,
"height", G_TYPE_UINT, &height, NULL)) {
GST_DEBUG_OBJECT (self, "received window size: %dx%d", width, height);
g_assert (width != 0 && height != 0);
}
}
}
gst_query_unref (query);
}
/* Update render size if needed */
self->window_width = width;
self->window_height = height;
/* For backward compatbility, we will prefer bliting if downstream
* allocation does not support the meta. In other case we will prefer
* attaching, and will fail the negotiation in the unlikely case we are
* force to blit, but format isn't supported. */
if (upstream_has_meta) {
attach = TRUE;
} else if (caps_has_meta) {
if (alloc_has_meta) {
attach = TRUE;
} else {
/* Don't attach unless we cannot handle the format */
attach = !can_blend_caps (caps);
}
} else {
ret = can_blend_caps (caps);
}
/* If we attach, then pick the overlay caps */
if (attach) {
GST_DEBUG_OBJECT (self, "Using caps %" GST_PTR_FORMAT, overlay_caps);
/* Caps where already sent */
} else if (ret) {
GST_DEBUG_OBJECT (self, "Using caps %" GST_PTR_FORMAT, caps);
ret = gst_pad_set_caps (self->srcpad, caps);
}
self->attach_compo_to_buffer = attach;
if (!ret) {
GST_DEBUG_OBJECT (self, "negotiation failed, schedule reconfigure");
gst_pad_mark_reconfigure (self->srcpad);
}
g_signal_emit (self, overlay_composition_signals[SIGNAL_CAPS_CHANGED], 0,
caps, self->window_width, self->window_height, NULL);
gst_caps_unref (overlay_caps);
gst_caps_unref (caps);
return ret;
no_format:
{
if (caps)
gst_caps_unref (caps);
gst_pad_mark_reconfigure (self->srcpad);
return FALSE;
}
}
static gboolean
gst_vtdec_negotiate (GstVideoDecoder * decoder)
{
GstVideoCodecState *output_state = NULL;
GstCaps *peercaps = NULL, *caps = NULL, *templcaps = NULL, *prevcaps = NULL;
GstVideoFormat format;
GstStructure *structure;
const gchar *s;
GstVtdec *vtdec;
OSStatus err = noErr;
GstCapsFeatures *features = NULL;
gboolean output_textures;
vtdec = GST_VTDEC (decoder);
if (vtdec->session)
gst_vtdec_push_frames_if_needed (vtdec, TRUE, FALSE);
output_state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (vtdec));
if (output_state) {
prevcaps = gst_caps_ref (output_state->caps);
gst_video_codec_state_unref (output_state);
}
peercaps = gst_pad_peer_query_caps (GST_VIDEO_DECODER_SRC_PAD (vtdec), NULL);
if (prevcaps && gst_caps_can_intersect (prevcaps, peercaps)) {
/* The hardware decoder can become (temporarily) unavailable across
* VTDecompressionSessionCreate/Destroy calls. So if the currently configured
* caps are still accepted by downstream we keep them so we don't have to
* destroy and recreate the session.
*/
GST_INFO_OBJECT (vtdec,
"current and peer caps are compatible, keeping current caps");
caps = gst_caps_ref (prevcaps);
} else {
templcaps =
gst_pad_get_pad_template_caps (GST_VIDEO_DECODER_SRC_PAD (decoder));
caps =
gst_caps_intersect_full (peercaps, templcaps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (templcaps);
}
gst_caps_unref (peercaps);
caps = gst_caps_truncate (gst_caps_make_writable (caps));
structure = gst_caps_get_structure (caps, 0);
s = gst_structure_get_string (structure, "format");
format = gst_video_format_from_string (s);
features = gst_caps_get_features (caps, 0);
if (features)
features = gst_caps_features_copy (features);
output_state = gst_video_decoder_set_output_state (GST_VIDEO_DECODER (vtdec),
format, vtdec->video_info.width, vtdec->video_info.height,
vtdec->input_state);
output_state->caps = gst_video_info_to_caps (&output_state->info);
if (features) {
gst_caps_set_features (output_state->caps, 0, features);
output_textures =
gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY);
if (output_textures)
gst_caps_set_simple (output_state->caps, "texture-target", G_TYPE_STRING,
#if !HAVE_IOS
GST_GL_TEXTURE_TARGET_RECTANGLE_STR,
#else
GST_GL_TEXTURE_TARGET_2D_STR,
#endif
NULL);
}
gst_caps_unref (caps);
if (!prevcaps || !gst_caps_is_equal (prevcaps, output_state->caps)) {
gboolean renegotiating = vtdec->session != NULL;
GST_INFO_OBJECT (vtdec,
"negotiated output format %" GST_PTR_FORMAT " previous %"
GST_PTR_FORMAT, output_state->caps, prevcaps);
if (vtdec->session)
gst_vtdec_invalidate_session (vtdec);
err = gst_vtdec_create_session (vtdec, format, TRUE);
if (err == noErr) {
GST_INFO_OBJECT (vtdec, "using hardware decoder");
} else if (err == kVTVideoDecoderNotAvailableNowErr && renegotiating) {
GST_WARNING_OBJECT (vtdec, "hw decoder not available anymore");
err = gst_vtdec_create_session (vtdec, format, FALSE);
}
if (err != noErr) {
GST_ELEMENT_ERROR (vtdec, RESOURCE, FAILED, (NULL),
("VTDecompressionSessionCreate returned %d", (int) err));
}
}
if (vtdec->texture_cache != NULL && !output_textures) {
gst_video_texture_cache_free (vtdec->texture_cache);
vtdec->texture_cache = NULL;
}
if (err == noErr && output_textures) {
/* call this regardless of whether caps have changed or not since a new
* local context could have become available
*/
gst_gl_context_helper_ensure_context (vtdec->ctxh);
GST_INFO_OBJECT (vtdec, "pushing textures, context %p old context %p",
vtdec->ctxh->context,
vtdec->texture_cache ? vtdec->texture_cache->ctx : NULL);
if (vtdec->texture_cache
&& vtdec->texture_cache->ctx != vtdec->ctxh->context) {
gst_video_texture_cache_free (vtdec->texture_cache);
vtdec->texture_cache = NULL;
}
if (!vtdec->texture_cache)
setup_texture_cache (vtdec, vtdec->ctxh->context);
}
if (prevcaps)
gst_caps_unref (prevcaps);
if (err != noErr)
return FALSE;
return GST_VIDEO_DECODER_CLASS (gst_vtdec_parent_class)->negotiate (decoder);
}
static GstCaps *
gst_video_rate_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstVideoRate *videorate = GST_VIDEO_RATE (trans);
GstCaps *ret;
GstStructure *s, *s1, *s2, *s3 = NULL;
int maxrate = g_atomic_int_get (&videorate->max_rate);
gint i;
ret = gst_caps_new_empty ();
for (i = 0; i < gst_caps_get_size (caps); i++) {
s = gst_caps_get_structure (caps, i);
s1 = gst_structure_copy (s);
if (videorate->updating_caps && direction == GST_PAD_SINK) {
GST_INFO_OBJECT (trans,
"Only updating caps %" GST_PTR_FORMAT " with framerate" " %d/%d",
caps, videorate->to_rate_numerator, videorate->to_rate_denominator);
gst_structure_set (s1, "framerate", GST_TYPE_FRACTION,
videorate->to_rate_numerator, videorate->to_rate_denominator, NULL);
ret = gst_caps_merge_structure (ret, s1);
continue;
}
s2 = gst_structure_copy (s);
s3 = NULL;
if (videorate->drop_only) {
gint min_num = 0, min_denom = 1;
gint max_num = G_MAXINT, max_denom = 1;
/* Clamp the caps to our maximum rate as the first caps if possible */
if (!gst_video_max_rate_clamp_structure (s1, maxrate,
&min_num, &min_denom, &max_num, &max_denom)) {
min_num = 0;
min_denom = 1;
max_num = maxrate;
max_denom = 1;
/* clamp wouldn't be a real subset of 1..maxrate, in this case the sink
* caps should become [1..maxrate], [1..maxint] and the src caps just
* [1..maxrate]. In case there was a caps incompatibility things will
* explode later as appropriate :)
*
* In case [X..maxrate] == [X..maxint], skip as we'll set it later
*/
if (direction == GST_PAD_SRC && maxrate != G_MAXINT)
gst_structure_set (s1, "framerate", GST_TYPE_FRACTION_RANGE,
min_num, min_denom, maxrate, 1, NULL);
else {
gst_structure_free (s1);
s1 = NULL;
}
}
if (direction == GST_PAD_SRC) {
/* We can accept anything as long as it's at least the minimal framerate
* the the sink needs */
gst_structure_set (s2, "framerate", GST_TYPE_FRACTION_RANGE,
min_num, min_denom, G_MAXINT, 1, NULL);
/* Also allow unknown framerate, if it isn't already */
if (min_num != 0 || min_denom != 1) {
s3 = gst_structure_copy (s);
gst_structure_set (s3, "framerate", GST_TYPE_FRACTION, 0, 1, NULL);
}
} else if (max_num != 0 || max_denom != 1) {
/* We can provide everything upto the maximum framerate at the src */
gst_structure_set (s2, "framerate", GST_TYPE_FRACTION_RANGE,
0, 1, max_num, max_denom, NULL);
}
} else if (direction == GST_PAD_SINK) {
gint min_num = 0, min_denom = 1;
gint max_num = G_MAXINT, max_denom = 1;
if (!gst_video_max_rate_clamp_structure (s1, maxrate,
&min_num, &min_denom, &max_num, &max_denom)) {
gst_structure_free (s1);
s1 = NULL;
}
gst_structure_set (s2, "framerate", GST_TYPE_FRACTION_RANGE, 0, 1,
maxrate, 1, NULL);
} else {
/* set the framerate as a range */
gst_structure_set (s2, "framerate", GST_TYPE_FRACTION_RANGE, 0, 1,
G_MAXINT, 1, NULL);
}
if (s1 != NULL)
ret = gst_caps_merge_structure_full (ret, s1,
gst_caps_features_copy (gst_caps_get_features (caps, i)));
ret = gst_caps_merge_structure_full (ret, s2,
gst_caps_features_copy (gst_caps_get_features (caps, i)));
if (s3 != NULL)
ret = gst_caps_merge_structure_full (ret, s3,
gst_caps_features_copy (gst_caps_get_features (caps, i)));
}
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, ret, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (ret);
ret = intersection;
}
return ret;
}
/* only negotiate/query video overlay composition support for now */
static gboolean
gst_dvbsub_overlay_negotiate (GstDVBSubOverlay * overlay, GstCaps * caps)
{
gboolean ret;
gboolean attach = FALSE;
gboolean caps_has_meta = TRUE;
GstCapsFeatures *f;
GST_DEBUG_OBJECT (overlay, "performing negotiation");
if (!caps) {
caps = gst_pad_get_current_caps (overlay->srcpad);
} else {
gst_caps_ref (caps);
}
if (!caps || gst_caps_is_empty (caps))
goto no_format;
/* Try to use the overlay meta if possible */
f = gst_caps_get_features (caps, 0);
/* if the caps doesn't have the overlay meta, we query if downstream
* accepts it before trying the version without the meta
* If upstream already is using the meta then we can only use it */
if (!f
|| !gst_caps_features_contains (f,
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION)) {
GstCaps *overlay_caps;
GstCaps *peercaps;
/* In this case we added the meta, but we can work without it
* so preserve the original caps so we can use it as a fallback */
overlay_caps = gst_caps_copy (caps);
f = gst_caps_get_features (overlay_caps, 0);
gst_caps_features_add (f,
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION);
/* FIXME: We should probably check if downstream *prefers* the
* overlay meta, and only enforce usage of it if we can't handle
* the format ourselves and thus would have to drop the overlays.
* Otherwise we should prefer what downstream wants here.
*/
peercaps = gst_pad_peer_query_caps (overlay->srcpad, NULL);
caps_has_meta = gst_caps_can_intersect (peercaps, overlay_caps);
gst_caps_unref (peercaps);
GST_DEBUG_OBJECT (overlay, "Downstream accepts the overlay meta: %d",
caps_has_meta);
if (caps_has_meta) {
gst_caps_unref (caps);
caps = overlay_caps;
} else {
/* fallback to the original */
gst_caps_unref (overlay_caps);
caps_has_meta = FALSE;
}
}
GST_DEBUG_OBJECT (overlay, "Using caps %" GST_PTR_FORMAT, caps);
ret = gst_pad_set_caps (overlay->srcpad, caps);
if (ret) {
GstQuery *query;
/* find supported meta */
query = gst_query_new_allocation (caps, FALSE);
if (!gst_pad_peer_query (overlay->srcpad, query)) {
/* no problem, we use the query defaults */
GST_DEBUG_OBJECT (overlay, "ALLOCATION query failed");
}
if (caps_has_meta && gst_query_find_allocation_meta (query,
GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL))
attach = TRUE;
overlay->attach_compo_to_buffer = attach;
gst_query_unref (query);
}
gst_caps_unref (caps);
return ret;
no_format:
{
if (caps)
gst_caps_unref (caps);
return FALSE;
}
}
GstVaapiCapsFeature
gst_vaapi_find_preferred_caps_feature (GstPad * pad, GstVideoFormat format,
GstVideoFormat * out_format_ptr)
{
GstVaapiCapsFeature feature = GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY;
guint i, num_structures;
GstCaps *caps = NULL;
GstCaps *gl_texture_upload_caps = NULL;
GstCaps *sysmem_caps = NULL;
GstCaps *vaapi_caps = NULL;
GstCaps *out_caps, *templ;
GstVideoFormat out_format;
templ = gst_pad_get_pad_template_caps (pad);
out_caps = gst_pad_peer_query_caps (pad, templ);
gst_caps_unref (templ);
if (!out_caps) {
feature = GST_VAAPI_CAPS_FEATURE_NOT_NEGOTIATED;
goto cleanup;
}
out_format = format == GST_VIDEO_FORMAT_ENCODED ?
GST_VIDEO_FORMAT_I420 : format;
gl_texture_upload_caps = new_gl_texture_upload_meta_caps ();
if (!gl_texture_upload_caps)
goto cleanup;
vaapi_caps =
gst_vaapi_video_format_new_template_caps_with_features (out_format,
GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE);
if (!vaapi_caps)
goto cleanup;
sysmem_caps =
gst_vaapi_video_format_new_template_caps_with_features (out_format,
GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY);
if (!sysmem_caps)
goto cleanup;
num_structures = gst_caps_get_size (out_caps);
for (i = 0; i < num_structures; i++) {
GstCapsFeatures *const features = gst_caps_get_features (out_caps, i);
GstStructure *const structure = gst_caps_get_structure (out_caps, i);
#if GST_CHECK_VERSION(1,3,0)
/* Skip ANY features, we need an exact match for correct evaluation */
if (gst_caps_features_is_any (features))
continue;
#endif
caps = gst_caps_new_full (gst_structure_copy (structure), NULL);
if (!caps)
continue;
gst_caps_set_features (caps, 0, gst_caps_features_copy (features));
if (gst_caps_can_intersect (caps, vaapi_caps) &&
feature < GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE)
feature = GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE;
else if (gst_caps_can_intersect (caps, gl_texture_upload_caps) &&
feature < GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META)
feature = GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META;
else if (gst_caps_can_intersect (caps, sysmem_caps) &&
feature < GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY)
feature = GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY;
gst_caps_replace (&caps, NULL);
#if GST_CHECK_VERSION(1,3,0)
/* Stop at the first match, the caps should already be sorted out
by preference order from downstream elements */
if (feature != GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY)
break;
#endif
}
if (out_format_ptr) {
if (feature == GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META) {
GstStructure *structure;
gchar *format_str;
out_format = GST_VIDEO_FORMAT_UNKNOWN;
do {
caps = gst_caps_intersect_full (out_caps, gl_texture_upload_caps,
GST_CAPS_INTERSECT_FIRST);
if (!caps)
break;
structure = gst_caps_get_structure (caps, 0);
if (!structure)
break;
if (!gst_structure_get (structure, "format", G_TYPE_STRING,
&format_str, NULL))
break;
out_format = gst_video_format_from_string (format_str);
g_free (format_str);
} while (0);
if (!out_format)
goto cleanup;
}
*out_format_ptr = out_format;
}
cleanup:
gst_caps_replace (&gl_texture_upload_caps, NULL);
gst_caps_replace (&sysmem_caps, NULL);
gst_caps_replace (&vaapi_caps, NULL);
gst_caps_replace (&caps, NULL);
gst_caps_replace (&out_caps, NULL);
return feature;
}
static GstCaps *
gst_play_sink_convert_bin_getcaps (GstPad * pad, GstCaps * filter)
{
GstPlaySinkConvertBin *self =
GST_PLAY_SINK_CONVERT_BIN (gst_pad_get_parent (pad));
GstCaps *ret;
GstPad *otherpad, *peer;
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
if (pad == self->srcpad) {
otherpad = self->sinkpad;
} else if (pad == self->sinkpad) {
otherpad = self->srcpad;
} else {
GST_ERROR_OBJECT (pad, "Not one of our pads");
otherpad = NULL;
}
if (otherpad) {
peer = gst_pad_get_peer (otherpad);
if (peer) {
GstCaps *peer_caps;
GstCaps *downstream_filter = NULL;
/* Add all the caps that we can convert to to the filter caps,
* otherwise downstream might just return EMPTY caps because
* it doesn't handle the filter caps but we could still convert
* to these caps */
if (filter) {
guint i, n;
downstream_filter = gst_caps_new_empty ();
/* Intersect raw video caps in the filter caps with the converter
* caps. This makes sure that we don't accept raw video that we
* can't handle, e.g. because of caps features */
n = gst_caps_get_size (filter);
for (i = 0; i < n; i++) {
GstStructure *s;
GstCaps *tmp, *tmp2;
s = gst_structure_copy (gst_caps_get_structure (filter, i));
if (gst_structure_has_name (s,
self->audio ? "audio/x-raw" : "video/x-raw")) {
tmp = gst_caps_new_full (s, NULL);
tmp2 = gst_caps_intersect (tmp, self->converter_caps);
gst_caps_append (downstream_filter, tmp2);
gst_caps_unref (tmp);
} else {
gst_caps_append_structure (downstream_filter, s);
}
}
downstream_filter =
gst_caps_merge (downstream_filter,
gst_caps_ref (self->converter_caps));
}
peer_caps = gst_pad_query_caps (peer, downstream_filter);
if (downstream_filter)
gst_caps_unref (downstream_filter);
gst_object_unref (peer);
if (self->converter_caps && is_raw_caps (peer_caps, self->audio)) {
GstCaps *converter_caps = gst_caps_ref (self->converter_caps);
GstCapsFeatures *cf;
GstStructure *s;
guint i, n;
ret = gst_caps_make_writable (peer_caps);
/* Filter out ANY capsfeatures from the converter caps. We can't
* convert to ANY capsfeatures, they are only there so that we
* can passthrough whatever downstream can support... but we
* definitely don't want to return them here
*/
n = gst_caps_get_size (converter_caps);
for (i = 0; i < n; i++) {
s = gst_caps_get_structure (converter_caps, i);
cf = gst_caps_get_features (converter_caps, i);
if (cf && gst_caps_features_is_any (cf))
continue;
ret =
gst_caps_merge_structure_full (ret, gst_structure_copy (s),
(cf ? gst_caps_features_copy (cf) : NULL));
}
gst_caps_unref (converter_caps);
} else {
ret = peer_caps;
}
} else {
ret = gst_caps_ref (self->converter_caps);
}
GST_PLAY_SINK_CONVERT_BIN_FILTER_CAPS (filter, ret);
} else {
ret = filter ? gst_caps_ref (filter) : gst_caps_new_any ();
}
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
gst_object_unref (self);
GST_DEBUG_OBJECT (pad, "Returning caps %" GST_PTR_FORMAT, ret);
return ret;
}
gboolean
gst_gl_mixer_process_textures (GstGLMixer * mix, GstBuffer * outbuf)
{
guint i;
GList *walk;
guint out_tex, out_tex_target;
gboolean res = TRUE;
guint array_index = 0;
GstVideoFrame out_frame;
GstElement *element = GST_ELEMENT (mix);
GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (mix);
GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix);
GstGLMixerPrivate *priv = mix->priv;
gboolean to_download =
gst_caps_features_is_equal (GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY,
gst_caps_get_features (mix->out_caps, 0));
GstMapFlags out_map_flags = GST_MAP_WRITE;
GST_TRACE ("Processing buffers");
to_download |= !gst_is_gl_memory (gst_buffer_peek_memory (outbuf, 0));
if (!to_download)
out_map_flags |= GST_MAP_GL;
if (!gst_video_frame_map (&out_frame, &vagg->info, outbuf, out_map_flags)) {
return FALSE;
}
if (!to_download) {
out_tex = *(guint *) out_frame.data[0];
out_tex_target =
((GstGLMemory *) gst_buffer_peek_memory (outbuf, 0))->tex_target;
} else {
GST_INFO ("Output Buffer does not contain correct memory, "
"attempting to wrap for download");
if (!mix->download)
mix->download = gst_gl_download_new (mix->context);
gst_gl_download_set_format (mix->download, &out_frame.info);
out_tex = mix->out_tex_id;
out_tex_target = GL_TEXTURE_2D;
}
GST_OBJECT_LOCK (mix);
walk = element->sinkpads;
i = mix->frames->len;
g_ptr_array_set_size (mix->frames, element->numsinkpads);
for (; i < element->numsinkpads; i++)
mix->frames->pdata[i] = g_slice_new0 (GstGLMixerFrameData);
while (walk) {
GstGLMixerPad *pad = GST_GL_MIXER_PAD (walk->data);
GstGLMixerPadClass *pad_class = GST_GL_MIXER_PAD_GET_CLASS (pad);
GstVideoAggregatorPad *vaggpad = walk->data;
GstGLMixerFrameData *frame;
frame = g_ptr_array_index (mix->frames, array_index);
frame->pad = pad;
frame->texture = 0;
walk = g_list_next (walk);
if (vaggpad->buffer != NULL) {
g_assert (pad_class->upload_buffer);
if (pad->gl_buffer)
gst_buffer_unref (pad->gl_buffer);
pad->gl_buffer = pad_class->upload_buffer (mix, frame, vaggpad->buffer);
GST_DEBUG_OBJECT (pad,
"uploaded buffer %" GST_PTR_FORMAT " from buffer %" GST_PTR_FORMAT,
pad->gl_buffer, vaggpad->buffer);
}
++array_index;
}
g_mutex_lock (&priv->gl_resource_lock);
if (!priv->gl_resource_ready)
g_cond_wait (&priv->gl_resource_cond, &priv->gl_resource_lock);
if (!priv->gl_resource_ready) {
g_mutex_unlock (&priv->gl_resource_lock);
GST_ERROR_OBJECT (mix,
"fbo used to render can't be created, do not run process_textures");
res = FALSE;
goto out;
}
mix_class->process_textures (mix, mix->frames, out_tex);
g_mutex_unlock (&priv->gl_resource_lock);
if (to_download) {
if (!gst_gl_download_perform_with_data (mix->download,
out_tex, out_tex_target, out_frame.data)) {
GST_ELEMENT_ERROR (mix, RESOURCE, NOT_FOUND, ("%s",
"Failed to download video frame"), (NULL));
res = FALSE;
goto out;
}
}
out:
i = 0;
walk = GST_ELEMENT (mix)->sinkpads;
while (walk) {
GstGLMixerPad *pad = GST_GL_MIXER_PAD (walk->data);
if (pad->upload)
gst_gl_upload_release_buffer (pad->upload);
walk = g_list_next (walk);
i++;
}
GST_OBJECT_UNLOCK (mix);
gst_video_frame_unmap (&out_frame);
return res;
}
