static gboolean gst_iqcmplx_setcaps(GstPad *pad, GstCaps *caps)
{
Gst_iqcmplx *cmplx;
GstCaps *newcaps;
GstStructure *structure;
cmplx = GST_IQCMPLX(gst_pad_get_parent(pad));
newcaps = gst_caps_copy(caps);
if (!newcaps)
return FALSE;
structure = gst_caps_get_structure(newcaps, 0);
if (!strcmp(gst_structure_get_name(structure), "audio/x-raw-float")) {
gst_structure_set_name(structure, "audio/x-complex-float");
gst_structure_set(structure, "channels", G_TYPE_INT, 1, NULL);
gst_structure_set(structure, "depth", G_TYPE_INT, 64, NULL);
gst_structure_set(structure, "width", G_TYPE_INT, 64, NULL);
} else {
gst_structure_set_name(structure, "audio/x-raw-float");
gst_structure_set(structure, "channels", G_TYPE_INT, 2, NULL);
gst_structure_set(structure, "depth", G_TYPE_INT, 32, NULL);
gst_structure_set(structure, "width", G_TYPE_INT, 32, NULL);
}
gst_pad_use_fixed_caps(
pad == cmplx->srcpad ? cmplx->sinkpad : cmplx->srcpad);
return gst_pad_set_caps(
pad == cmplx->srcpad ? cmplx->sinkpad : cmplx->srcpad, newcaps);
}
/* copies the given caps */
static GstCaps *
gst_csp_caps_remove_format_info (GstCaps * caps)
{
GstStructure *yuvst, *rgbst, *grayst;
/* We know there's only one structure since we're given simple caps */
caps = gst_caps_copy (caps);
yuvst = gst_caps_get_structure (caps, 0);
gst_structure_set_name (yuvst, "video/x-raw-yuv");
gst_structure_remove_fields (yuvst, "format", "endianness", "depth",
"bpp", "red_mask", "green_mask", "blue_mask", "alpha_mask",
"palette_data", "color-matrix", NULL);
rgbst = gst_structure_copy (yuvst);
gst_structure_set_name (rgbst, "video/x-raw-rgb");
gst_structure_remove_fields (rgbst, "color-matrix", "chroma-site", NULL);
grayst = gst_structure_copy (rgbst);
gst_structure_set_name (grayst, "video/x-raw-gray");
gst_caps_append_structure (caps, rgbst);
gst_caps_append_structure (caps, grayst);
return caps;
}
static GstCaps *
gst_amr_parse_sink_getcaps (GstBaseParse * parse, GstCaps * filter)
{
GstCaps *peercaps, *templ;
GstCaps *res;
templ = gst_pad_get_pad_template_caps (GST_BASE_PARSE_SINK_PAD (parse));
peercaps = gst_pad_peer_query_caps (GST_BASE_PARSE_SRC_PAD (parse), filter);
if (peercaps) {
guint i, n;
/* Rename structure names */
peercaps = gst_caps_make_writable (peercaps);
n = gst_caps_get_size (peercaps);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (peercaps, i);
if (gst_structure_has_name (s, "audio/AMR"))
gst_structure_set_name (s, "audio/x-amr-nb-sh");
else
gst_structure_set_name (s, "audio/x-amr-wb-sh");
}
res = gst_caps_intersect_full (peercaps, templ, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (peercaps);
res = gst_caps_make_writable (res);
/* Append the template caps because we still want to accept
* caps without any fields in the case upstream does not
* know anything.
*/
gst_caps_append (res, templ);
} else {
res = templ;
}
if (filter) {
GstCaps *intersection;
intersection =
gst_caps_intersect_full (filter, res, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (res);
res = intersection;
}
return res;
}
static gboolean
gst_srtp_dec_sink_setcaps (GstPad * pad, GstObject * parent,
GstCaps * caps, gboolean is_rtcp)
{
GstSrtpDec *filter = GST_SRTP_DEC (parent);
GstPad *otherpad;
GstStructure *ps;
gboolean ret = FALSE;
g_return_val_if_fail (gst_caps_is_fixed (caps), FALSE);
ps = gst_caps_get_structure (caps, 0);
if (gst_structure_has_field_typed (ps, "ssrc", G_TYPE_UINT) &&
gst_structure_has_field_typed (ps, "roc", G_TYPE_UINT) &&
gst_structure_has_field_typed (ps, "srtp-cipher", G_TYPE_STRING) &&
gst_structure_has_field_typed (ps, "srtp-auth", G_TYPE_STRING) &&
gst_structure_has_field_typed (ps, "srtcp-cipher", G_TYPE_STRING) &&
gst_structure_has_field_typed (ps, "srtcp-auth", G_TYPE_STRING)) {
guint ssrc;
gst_structure_get_uint (ps, "ssrc", &ssrc);
if (!update_session_stream_from_caps (filter, ssrc, caps)) {
GST_WARNING_OBJECT (pad, "Could not create session from pad caps: %"
GST_PTR_FORMAT, caps);
return FALSE;
}
}
caps = gst_caps_copy (caps);
ps = gst_caps_get_structure (caps, 0);
gst_structure_remove_fields (ps, "srtp-key", "srtp-cipher", "srtp-auth",
"srtcp-cipher", "srtcp-auth", NULL);
if (is_rtcp)
gst_structure_set_name (ps, "application/x-rtcp");
else
gst_structure_set_name (ps, "application/x-rtp");
otherpad = gst_pad_get_element_private (pad);
ret = gst_pad_set_caps (otherpad, caps);
gst_caps_unref (caps);
return ret;
}
static GstCaps *
mulawenc_getcaps (GstPad * pad)
{
GstMuLawEnc *mulawenc;
GstPad *otherpad;
GstCaps *othercaps, *result;
const GstCaps *templ;
const gchar *name;
gint i;
mulawenc = GST_MULAWENC (GST_PAD_PARENT (pad));
/* figure out the name of the caps we are going to return */
if (pad == mulawenc->srcpad) {
name = "audio/x-mulaw";
otherpad = mulawenc->sinkpad;
} else {
name = "audio/x-raw-int";
otherpad = mulawenc->srcpad;
}
/* get caps from the peer, this can return NULL when there is no peer */
othercaps = gst_pad_peer_get_caps (otherpad);
/* get the template caps to make sure we return something acceptable */
templ = gst_pad_get_pad_template_caps (pad);
if (othercaps) {
/* there was a peer */
othercaps = gst_caps_make_writable (othercaps);
/* go through the caps and remove the fields we don't want */
for (i = 0; i < gst_caps_get_size (othercaps); i++) {
GstStructure *structure;
structure = gst_caps_get_structure (othercaps, i);
/* adjust the name */
gst_structure_set_name (structure, name);
if (pad == mulawenc->srcpad) {
/* remove the fields we don't want */
gst_structure_remove_fields (structure, "width", "depth", "endianness",
"signed", NULL);
} else {
/* add fixed fields */
gst_structure_set (structure, "width", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"signed", G_TYPE_BOOLEAN, TRUE, NULL);
}
}
/* filter against the allowed caps of the pad to return our result */
result = gst_caps_intersect (othercaps, templ);
gst_caps_unref (othercaps);
} else {
/* there was no peer, return the template caps */
result = gst_caps_copy (templ);
}
return result;
}
static GstCaps *
gst_mill_color_transform_caps (GstBaseTransform * btrans,
GstPadDirection direction, GstCaps * caps)
{
const GstCaps *tmpl_caps = NULL;
GstCaps *result = NULL, *local_caps = NULL;
guint i;
local_caps = gst_caps_copy (caps);
for (i = 0; i < gst_caps_get_size (local_caps); i++) {
GstStructure *structure = gst_caps_get_structure (local_caps, i);
/* Throw away the structure name and set it to transformed format */
if (direction == GST_PAD_SINK) {
gst_structure_set_name (structure, "video/x-raw-yuv");
} else if (direction == GST_PAD_SRC) {
gst_structure_set_name (structure, "video/x-raw-rgb");
}
/* Remove any specific parameter from the structure */
gst_structure_remove_field (structure, "format");
gst_structure_remove_field (structure, "endianness");
gst_structure_remove_field (structure, "depth");
gst_structure_remove_field (structure, "bpp");
gst_structure_remove_field (structure, "red_mask");
gst_structure_remove_field (structure, "green_mask");
gst_structure_remove_field (structure, "blue_mask");
gst_structure_remove_field (structure, "alpha_mask");
}
/* Get the appropriate template */
if (direction == GST_PAD_SINK) {
tmpl_caps = gst_static_pad_template_get_caps (&src_template);
} else if (direction == GST_PAD_SRC) {
tmpl_caps = gst_static_pad_template_get_caps (&sink_template);
}
/* Intersect with our template caps */
result = gst_caps_intersect (local_caps, tmpl_caps);
gst_caps_unref (local_caps);
gst_caps_do_simplify (result);
GST_LOG ("transformed %" GST_PTR_FORMAT " to %" GST_PTR_FORMAT, caps, result);
return result;
}
/* copies the given caps */
static GstCaps *
gst_ffmpegcsp_caps_remove_format_info (GstCaps * caps)
{
int i;
GstStructure *structure;
GstCaps *rgbcaps;
GstCaps *graycaps;
caps = gst_caps_copy (caps);
for (i = 0; i < gst_caps_get_size (caps); i++) {
structure = gst_caps_get_structure (caps, i);
gst_structure_set_name (structure, "video/x-raw-yuv");
gst_structure_remove_field (structure, "format");
gst_structure_remove_field (structure, "endianness");
gst_structure_remove_field (structure, "depth");
gst_structure_remove_field (structure, "bpp");
gst_structure_remove_field (structure, "red_mask");
gst_structure_remove_field (structure, "green_mask");
gst_structure_remove_field (structure, "blue_mask");
gst_structure_remove_field (structure, "alpha_mask");
gst_structure_remove_field (structure, "palette_data");
}
gst_caps_do_simplify (caps);
rgbcaps = gst_caps_copy (caps);
for (i = 0; i < gst_caps_get_size (rgbcaps); i++) {
structure = gst_caps_get_structure (rgbcaps, i);
gst_structure_set_name (structure, "video/x-raw-rgb");
}
graycaps = gst_caps_copy (caps);
for (i = 0; i < gst_caps_get_size (graycaps); i++) {
structure = gst_caps_get_structure (graycaps, i);
gst_structure_set_name (structure, "video/x-raw-gray");
}
gst_caps_append (caps, graycaps);
gst_caps_append (caps, rgbcaps);
return caps;
}
GstCaps *
gst_vdp_yuv_to_video_caps (GstCaps * yuv_caps)
{
GstCaps *video_caps;
gint i;
g_return_val_if_fail (GST_IS_CAPS (yuv_caps), NULL);
video_caps = gst_caps_copy (yuv_caps);
for (i = 0; i < gst_caps_get_size (video_caps); i++) {
GstStructure *structure;
guint32 fourcc;
VdpChromaType chroma_type;
structure = gst_caps_get_structure (video_caps, i);
if (!gst_structure_has_name (structure, "video/x-raw-yuv"))
goto not_yuv_error;
if (!gst_structure_get_fourcc (structure, "format", &fourcc))
goto no_format_error;
chroma_type = -1;
for (i = 0; i < G_N_ELEMENTS (formats); i++) {
if (formats[i].fourcc == fourcc) {
chroma_type = formats[i].chroma_type;
break;
}
}
if (chroma_type == -1)
goto no_chroma_error;
/* now we transform the caps */
gst_structure_set_name (structure, "video/x-vdpau-video");
gst_structure_remove_field (structure, "format");
gst_structure_set (structure, "chroma-type", G_TYPE_INT, chroma_type, NULL);
}
return video_caps;
error:
gst_caps_unref (video_caps);
return NULL;
not_yuv_error:
GST_WARNING ("The caps weren't of type \"video/x-raw-yuv\"");
goto error;
no_format_error:
GST_WARNING ("The caps didn't have a \"fourcc\" field");
goto error;
no_chroma_error:
GST_WARNING ("The caps had an invalid \"fourcc\" field");
goto error;
}
static GstCaps *
gst_alpha_color_transform_caps (GstBaseTransform * btrans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *tmpl_caps = NULL;
GstCaps *result = NULL, *local_caps = NULL;
guint i;
local_caps = gst_caps_new_empty ();
for (i = 0; i < gst_caps_get_size (caps); i++) {
GstStructure *structure =
gst_structure_copy (gst_caps_get_structure (caps, i));
/* Remove any specific parameter from the structure */
gst_structure_remove_field (structure, "format");
gst_structure_remove_field (structure, "colorimetry");
gst_structure_remove_field (structure, "chroma-site");
gst_structure_set_name (structure, "video/x-raw");
gst_caps_append_structure (local_caps, structure);
}
/* Get the appropriate template */
if (direction == GST_PAD_SINK) {
tmpl_caps = gst_static_pad_template_get_caps (&src_template);
} else if (direction == GST_PAD_SRC) {
tmpl_caps = gst_static_pad_template_get_caps (&sink_template);
}
/* Intersect with our template caps */
result = gst_caps_intersect (local_caps, tmpl_caps);
gst_caps_unref (tmpl_caps);
gst_caps_unref (local_caps);
result = gst_caps_simplify (result);
GST_LOG_OBJECT (btrans, "transformed %" GST_PTR_FORMAT " to %" GST_PTR_FORMAT,
caps, result);
if (filter) {
GstCaps *intersection;
GST_DEBUG_OBJECT (btrans, "Using filter caps %" GST_PTR_FORMAT, filter);
intersection =
gst_caps_intersect_full (filter, result, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (result);
result = intersection;
GST_DEBUG_OBJECT (btrans, "Intersection %" GST_PTR_FORMAT, result);
}
return result;
}
static GstCaps *
gst_caps_setter_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps)
{
GstCapsSetter *filter;
GstCaps *ret, *filter_caps;
GstStructure *structure, *merge;
const gchar *name;
gint i, j;
filter = GST_CAPS_SETTER (trans);
GST_DEBUG_OBJECT (trans, "receiving caps: %" GST_PTR_FORMAT, caps);
ret = gst_caps_copy (caps);
/* this function is always called with a simple caps */
if (!GST_CAPS_IS_SIMPLE (ret) || direction != GST_PAD_SINK)
return ret;
structure = gst_caps_get_structure (ret, 0);
name = gst_structure_get_name (structure);
GST_OBJECT_LOCK (filter);
filter_caps = gst_caps_ref (filter->caps);
GST_OBJECT_UNLOCK (filter);
for (i = 0; i < gst_caps_get_size (filter_caps); ++i) {
merge = gst_caps_get_structure (filter_caps, i);
if (gst_structure_has_name (merge, name) || !filter->join) {
if (!filter->join)
gst_structure_set_name (structure, gst_structure_get_name (merge));
if (filter->replace)
gst_structure_remove_all_fields (structure);
for (j = 0; j < gst_structure_n_fields (merge); ++j) {
const gchar *fname;
fname = gst_structure_nth_field_name (merge, j);
gst_structure_set_value (structure, fname,
gst_structure_get_value (merge, fname));
}
}
}
GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, ret);
gst_caps_unref (filter_caps);
return ret;
}
static GstCaps *
gst_smokeenc_getcaps (GstPad * pad)
{
GstSmokeEnc *smokeenc = GST_SMOKEENC (gst_pad_get_parent (pad));
GstPad *otherpad;
GstCaps *result, *caps;
const GstCaps *tcaps;
const char *name;
int i;
GstStructure *structure = NULL;
/* we want to proxy properties like width, height and framerate from the
other end of the element */
otherpad = (pad == smokeenc->srcpad) ? smokeenc->sinkpad : smokeenc->srcpad;
/* get template caps, we always need this to fiter the peer caps */
tcaps = gst_pad_get_pad_template_caps (otherpad);
/* get any constraints on the peer pad */
caps = gst_pad_peer_get_caps (otherpad);
if (caps == NULL)
caps = gst_caps_copy (tcaps);
else
caps = gst_caps_make_writable (caps);
/* intersect with the template */
result = gst_caps_intersect (caps, tcaps);
gst_caps_unref (caps);
if (pad == smokeenc->srcpad) {
name = "video/x-smoke";
} else {
name = "video/x-raw-yuv";
}
/* we can only copy width, height, framerate from one side to the other */
for (i = 0; i < gst_caps_get_size (result); i++) {
structure = gst_caps_get_structure (result, i);
gst_structure_set_name (structure, name);
gst_structure_remove_field (structure, "format");
/* ... but for the sink pad, we only do I420 anyway, so add that */
if (pad == smokeenc->sinkpad) {
gst_structure_set (structure, "format", GST_TYPE_FOURCC,
GST_STR_FOURCC ("I420"), NULL);
}
}
gst_object_unref (smokeenc);
return result;
}
GstCaps *
gst_vdp_video_to_output_caps (GstCaps * video_caps)
{
GstCaps *output_caps;
gint i;
g_return_val_if_fail (GST_IS_CAPS (video_caps), NULL);
output_caps = gst_caps_copy (video_caps);
for (i = 0; i < gst_caps_get_size (video_caps); i++) {
GstStructure *structure, *rgb_structure;
structure = gst_caps_get_structure (output_caps, i);
if (!gst_structure_has_name (structure, "video/x-vdpau-video"))
goto not_video_error;
rgb_structure = gst_structure_copy (structure);
gst_structure_set_name (structure, "video/x-vdpau-output");
gst_structure_remove_field (structure, "chroma-type");
gst_vdp_video_remove_pixel_aspect_ratio (structure);
gst_structure_set_name (rgb_structure, "video/x-raw-rgb");
gst_structure_remove_field (rgb_structure, "chroma-type");
gst_vdp_video_remove_pixel_aspect_ratio (rgb_structure);
gst_caps_append_structure (output_caps, rgb_structure);
}
return output_caps;
error:
gst_caps_unref (output_caps);
return NULL;
not_video_error:
GST_WARNING ("The caps weren't of type \"video/x-vdpau-video\"");
goto error;
}
void gst_caps_change_name (GstCaps* caps, const char* name)
{
for (unsigned int i = 0; i < gst_caps_get_size(caps); ++i)
{
GstStructure* struc = gst_caps_get_structure(caps, i);
if (struc != nullptr)
{
gst_structure_set_name(struc, name);
gst_structure_remove_field(struc, "format");
}
}
}
static gboolean
gst_dc1394_set_caps_color (GstStructure * gs, gint mc)
{
gboolean ret = TRUE;
gint fourcc;
switch (mc) {
case DC1394_COLOR_CODING_YUV444:
gst_structure_set_name (gs, "video/x-raw-yuv");
fourcc = GST_MAKE_FOURCC ('I', 'Y', 'U', '2');
gst_structure_set (gs,
"format", GST_TYPE_FOURCC, fourcc, "bpp", G_TYPE_INT, 16, NULL);
break;
case DC1394_COLOR_CODING_YUV422:
gst_structure_set_name (gs, "video/x-raw-yuv");
fourcc = GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y');
gst_structure_set (gs,
"format", GST_TYPE_FOURCC, fourcc, "bpp", G_TYPE_INT, 16, NULL);
break;
case DC1394_COLOR_CODING_YUV411:
gst_structure_set_name (gs, "video/x-raw-yuv");
fourcc = GST_MAKE_FOURCC ('I', 'Y', 'U', '1');
gst_structure_set (gs,
"format", GST_TYPE_FOURCC, fourcc, "bpp", G_TYPE_INT, 12, NULL);
break;
case DC1394_COLOR_CODING_RGB8:
gst_structure_set_name (gs, "video/x-raw-rgb");
gst_structure_set (gs,
"bpp", G_TYPE_INT, 24,
"depth", G_TYPE_INT, 24,
"endianness", G_TYPE_INT, G_BIG_ENDIAN,
"red_mask", G_TYPE_INT, 0xFF0000,
"green_mask", G_TYPE_INT, 0x00FF00,
"blue_mask", G_TYPE_INT, 0x0000FF, NULL);
break;
case DC1394_COLOR_CODING_MONO8:
gst_structure_set_name (gs, "video/x-raw-gray");
gst_structure_set (gs,
"bpp", G_TYPE_INT, 8, "depth", G_TYPE_INT, 8, NULL);
break;
case DC1394_COLOR_CODING_MONO16:
gst_structure_set_name (gs, "video/x-raw-gray");
gst_structure_set (gs,
"bpp", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16, NULL);
// there is no fourcc for this format
break;
default:
GST_DEBUG ("Ignoring unsupported color format %d", mc);
ret = FALSE;
break;
}
return ret;
}
static GstCaps *
extend_caps (GstCaps * caps, gboolean add_private)
{
guint i, n;
GstCaps *ncaps = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (caps, i);
if (add_private && !gst_structure_has_name (s, "audio/x-private1-ac3")) {
GstStructure *ns = gst_structure_copy (s);
gst_structure_set_name (ns, "audio/x-private1-ac3");
gst_caps_append_structure (ncaps, ns);
} else if (!add_private &&
gst_structure_has_name (s, "audio/x-private1-ac3")) {
GstStructure *ns = gst_structure_copy (s);
gst_structure_set_name (ns, "audio/x-ac3");
gst_caps_append_structure (ncaps, ns);
ns = gst_structure_copy (s);
gst_structure_set_name (ns, "audio/x-eac3");
gst_caps_append_structure (ncaps, ns);
} else if (!add_private) {
gst_caps_append_structure (ncaps, gst_structure_copy (s));
}
}
if (add_private) {
gst_caps_append (caps, ncaps);
} else {
gst_caps_unref (caps);
caps = ncaps;
}
return caps;
}
static GstCaps *
gst_xvidenc_getcaps (GstPad * pad)
{
GstXvidEnc *xvidenc;
GstPad *peer;
GstCaps *caps;
/* If we already have caps return them */
if (GST_PAD_CAPS (pad))
return gst_caps_ref (GST_PAD_CAPS (pad));
xvidenc = GST_XVIDENC (gst_pad_get_parent (pad));
if (!xvidenc)
return gst_caps_new_empty ();
peer = gst_pad_get_peer (xvidenc->srcpad);
if (peer) {
const GstCaps *templcaps;
GstCaps *peercaps;
guint i, n;
peercaps = gst_pad_get_caps (peer);
/* Translate peercaps to YUV */
peercaps = gst_caps_make_writable (peercaps);
n = gst_caps_get_size (peercaps);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (peercaps, i);
gst_structure_set_name (s, "video/x-raw-yuv");
gst_structure_remove_field (s, "mpegversion");
gst_structure_remove_field (s, "systemstream");
}
templcaps = gst_pad_get_pad_template_caps (pad);
caps = gst_caps_intersect (peercaps, templcaps);
gst_caps_unref (peercaps);
gst_object_unref (peer);
peer = NULL;
} else {
caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
}
gst_object_unref (xvidenc);
return caps;
}
static gboolean gst_mpeg4p2unpack_sink_event(GstPad * pad, GstObject *parent, GstEvent * event)
{
GstMpeg4P2Unpack *self = GST_MPEG4P2UNPACK(gst_pad_get_parent(pad));
gboolean ret = FALSE;
GST_LOG_OBJECT(self, "%s event", GST_EVENT_TYPE_NAME(event));
switch (GST_EVENT_TYPE (event))
{
case GST_EVENT_CAPS:
{
GstCaps *caps, *srccaps;
gst_event_parse_caps(event, &caps);
GST_DEBUG_OBJECT(self, "sinkcaps = %s", gst_caps_to_string(caps));
GstStructure *structure = gst_structure_copy(gst_caps_get_structure (caps, 0));
gint numerator, denominator;
if (gst_structure_get_fraction (structure, "framerate", &numerator, &denominator))
{
self->buffer_duration = 1000 / ((double)numerator * 1000 / denominator) * GST_SECOND;
}
srccaps = gst_caps_new_empty();
gst_structure_set_name(structure, "video/mpeg");
srccaps = gst_caps_merge_structure(srccaps, structure);
gst_caps_set_simple (srccaps, "mpegversion", G_TYPE_INT, 4, NULL);
gst_caps_set_simple (srccaps, "systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
gst_caps_set_simple (srccaps, "unpacked", G_TYPE_BOOLEAN, TRUE, NULL);
GST_DEBUG_OBJECT(self, "srccaps = %s", gst_caps_to_string(srccaps));
ret = gst_pad_set_caps(self->srcpad, srccaps);
gst_caps_unref(srccaps);
gst_event_unref(event);
}
break;
case GST_EVENT_FLUSH_STOP:
{
guint i;
for (i=0; i < MPEG4P2_MAX_B_FRAMES_COUNT; i++)
{
if (self->b_frames[i])
{
gst_buffer_unref(self->b_frames[i]);
self->b_frames[i] = NULL;
}
}
if (self->second_ip_frame)
{
gst_buffer_unref(self->second_ip_frame);
self->second_ip_frame = NULL;
}
if (self->b_frame)
{
gst_buffer_unref(self->b_frame);
self->b_frame = NULL;
}
self->b_frames_count = 0;
self->first_ip_frame_written = FALSE;
ret = gst_pad_push_event(self->srcpad, event);
}
break;
default:
ret = gst_pad_push_event(self->srcpad, event);
break;
}
return ret;
}
static GstCaps *
gst_shape_wipe_src_getcaps (GstPad * pad, GstCaps * filter)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
GstCaps *templ, *ret, *tmp;
if (gst_pad_has_current_caps (pad))
return gst_pad_get_current_caps (pad);
else if (gst_pad_has_current_caps (self->video_sinkpad))
return gst_pad_get_current_caps (self->video_sinkpad);
templ = gst_pad_get_pad_template_caps (self->video_sinkpad);
tmp = gst_pad_peer_query_caps (self->video_sinkpad, NULL);
if (tmp) {
ret = gst_caps_intersect (tmp, templ);
gst_caps_unref (templ);
gst_caps_unref (tmp);
} else {
ret = templ;
}
GST_LOG_OBJECT (pad, "video sink accepted caps: %" GST_PTR_FORMAT, ret);
if (gst_caps_is_empty (ret))
goto done;
tmp = gst_pad_peer_query_caps (pad, NULL);
GST_LOG_OBJECT (pad, "peer accepted caps: %" GST_PTR_FORMAT, ret);
if (tmp) {
GstCaps *intersection;
intersection = gst_caps_intersect (tmp, ret);
gst_caps_unref (tmp);
gst_caps_unref (ret);
ret = intersection;
}
GST_LOG_OBJECT (pad, "intersection: %" GST_PTR_FORMAT, ret);
if (gst_caps_is_empty (ret))
goto done;
if (self->vinfo.height && self->vinfo.width) {
guint i, n;
ret = gst_caps_make_writable (ret);
n = gst_caps_get_size (ret);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (ret, i);
gst_structure_set (s, "width", G_TYPE_INT, self->vinfo.width, "height",
G_TYPE_INT, self->vinfo.height, NULL);
}
}
tmp = gst_pad_peer_query_caps (self->mask_sinkpad, NULL);
GST_LOG_OBJECT (pad, "mask sink accepted caps: %" GST_PTR_FORMAT, ret);
if (tmp) {
GstCaps *intersection, *tmp2;
guint i, n;
tmp2 = gst_pad_get_pad_template_caps (self->mask_sinkpad);
intersection = gst_caps_intersect (tmp, tmp2);
gst_caps_unref (tmp);
gst_caps_unref (tmp2);
tmp = gst_caps_make_writable (intersection);
n = gst_caps_get_size (tmp);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (tmp, i);
gst_structure_remove_fields (s, "format", "framerate", NULL);
gst_structure_set_name (s, "video/x-raw");
}
intersection = gst_caps_intersect (tmp, ret);
gst_caps_unref (tmp);
gst_caps_unref (ret);
ret = intersection;
}
done:
gst_object_unref (self);
GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
return ret;
}
static GstCaps *
gst_shape_wipe_mask_sink_getcaps (GstPad * pad, GstCaps * filter)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
GstCaps *ret, *tmp;
guint i, n;
if (gst_pad_has_current_caps (pad))
return gst_pad_get_current_caps (pad);
tmp = gst_pad_peer_query_caps (self->video_sinkpad, NULL);
if (tmp) {
ret =
gst_caps_intersect (tmp,
gst_pad_get_pad_template_caps (self->video_sinkpad));
gst_caps_unref (tmp);
} else {
ret = gst_pad_get_pad_template_caps (self->video_sinkpad);
}
GST_LOG_OBJECT (pad, "video sink accepted caps: %" GST_PTR_FORMAT, ret);
if (gst_caps_is_empty (ret))
goto done;
tmp = gst_pad_peer_query_caps (self->srcpad, NULL);
GST_LOG_OBJECT (pad, "srcpad accepted caps: %" GST_PTR_FORMAT, ret);
if (tmp) {
GstCaps *intersection;
intersection = gst_caps_intersect (ret, tmp);
gst_caps_unref (ret);
gst_caps_unref (tmp);
ret = intersection;
}
GST_LOG_OBJECT (pad, "intersection: %" GST_PTR_FORMAT, ret);
if (gst_caps_is_empty (ret))
goto done;
n = gst_caps_get_size (ret);
tmp = gst_caps_new_empty ();
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (ret, i);
GstStructure *t;
gst_structure_set_name (s, "video/x-raw");
gst_structure_remove_fields (s, "format", "framerate", NULL);
if (self->vinfo.width && self->vinfo.height)
gst_structure_set (s, "width", G_TYPE_INT, self->vinfo.width, "height",
G_TYPE_INT, self->vinfo.height, NULL);
gst_structure_set (s, "framerate", GST_TYPE_FRACTION, 0, 1, NULL);
t = gst_structure_copy (s);
gst_structure_set (s, "format", G_TYPE_STRING, GST_VIDEO_NE (GRAY16), NULL);
gst_structure_set (t, "format", G_TYPE_STRING, "GRAY8", NULL);
gst_caps_append_structure (tmp, t);
}
gst_caps_append (ret, tmp);
tmp = gst_pad_peer_query_caps (pad, NULL);
GST_LOG_OBJECT (pad, "peer accepted caps: %" GST_PTR_FORMAT, tmp);
if (tmp) {
GstCaps *intersection;
intersection = gst_caps_intersect (tmp, ret);
gst_caps_unref (tmp);
gst_caps_unref (ret);
ret = intersection;
}
done:
gst_object_unref (self);
GST_LOG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
return ret;
}
static gboolean
gst_raw_video_parse_set_config_from_caps (GstRawBaseParse * raw_base_parse,
GstRawBaseParseConfig config, GstCaps * caps)
{
int i;
GstStructure *structure;
GstRawVideoParse *raw_video_parse = GST_RAW_VIDEO_PARSE (raw_base_parse);
GstRawVideoParseConfig *config_ptr =
gst_raw_video_parse_get_config_ptr (raw_video_parse, config);
g_assert (caps != NULL);
/* Caps might get copied, and the copy needs to be unref'd.
* Also, the caller retains ownership over the original caps.
* So, to make this mechanism also work with cases where the
* caps are *not* copied, ref the original caps here first. */
gst_caps_ref (caps);
structure = gst_caps_get_structure (caps, 0);
/* For unaligned raw data, the output caps stay the same,
* except that video/x-unaligned-raw becomes video/x-raw,
* since the parser aligns the frame data */
if (gst_structure_has_name (structure, "video/x-unaligned-raw")) {
/* Copy the caps to be able to modify them */
GstCaps *new_caps = gst_caps_copy (caps);
gst_caps_unref (caps);
caps = new_caps;
/* Change the media type to video/x-raw , otherwise
* gst_video_info_from_caps() won't work */
structure = gst_caps_get_structure (caps, 0);
gst_structure_set_name (structure, "video/x-raw");
}
config_ptr->ready = gst_video_info_from_caps (&(config_ptr->info), caps);
if (config_ptr->ready) {
config_ptr->width = GST_VIDEO_INFO_WIDTH (&(config_ptr->info));
config_ptr->height = GST_VIDEO_INFO_HEIGHT (&(config_ptr->info));
config_ptr->pixel_aspect_ratio_n =
GST_VIDEO_INFO_PAR_N (&(config_ptr->info));
config_ptr->pixel_aspect_ratio_d =
GST_VIDEO_INFO_PAR_D (&(config_ptr->info));
config_ptr->framerate_n = GST_VIDEO_INFO_FPS_N (&(config_ptr->info));
config_ptr->framerate_d = GST_VIDEO_INFO_FPS_D (&(config_ptr->info));
config_ptr->interlaced = GST_VIDEO_INFO_IS_INTERLACED (&(config_ptr->info));
config_ptr->height = GST_VIDEO_INFO_HEIGHT (&(config_ptr->info));
config_ptr->top_field_first = 0;
config_ptr->frame_stride = 0;
for (i = 0; i < GST_VIDEO_MAX_PLANES; ++i) {
config_ptr->plane_offsets[i] =
GST_VIDEO_INFO_PLANE_OFFSET (&(config_ptr->info), i);
config_ptr->plane_strides[i] =
GST_VIDEO_INFO_PLANE_STRIDE (&(config_ptr->info), i);
}
}
gst_caps_unref (caps);
return config_ptr->ready;
}
static gboolean
compare_encoding_profile_with_discoverer_stream (GstValidateFileChecker * fc,
GstEncodingProfile * prof, GstDiscovererStreamInfo * stream, gchar ** msg)
{
gboolean ret = TRUE;
GstCaps *caps = NULL;
const GstCaps *profile_caps;
const GstCaps *restriction_caps;
caps = gst_discoverer_stream_info_get_caps (stream);
profile_caps = gst_encoding_profile_get_format (prof);
restriction_caps = gst_encoding_profile_get_restriction (prof);
/* TODO need to consider profile caps restrictions */
if (!_gst_caps_can_intersect_safe (caps, profile_caps)) {
gchar *caps_str = gst_caps_to_string (caps);
gchar *profile_caps_str = gst_caps_to_string (profile_caps);
SET_MESSAGE (msg, g_strdup_printf ("Caps '%s' didn't match profile '%s'",
profile_caps_str, caps_str));
g_free (caps_str);
g_free (profile_caps_str);
ret = FALSE;
goto end;
}
if (restriction_caps) {
GstStructure *structure;
gint i;
gboolean found = FALSE;
for (i = 0; i < gst_caps_get_size (restriction_caps); i++) {
structure = gst_caps_get_structure (restriction_caps, i);
structure = gst_structure_copy (structure);
gst_structure_set_name (structure,
gst_structure_get_name (gst_caps_get_structure (caps, 0)));
if (gst_structure_can_intersect (structure, gst_caps_get_structure (caps,
0))) {
gst_structure_free (structure);
found = TRUE;
break;
}
gst_structure_free (structure);
}
if (!found) {
gchar *caps_str = gst_caps_to_string (caps);
gchar *restriction_caps_str = gst_caps_to_string (restriction_caps);
SET_MESSAGE (msg,
g_strdup_printf ("Caps restriction '%s' wasn't respected on file "
"with caps '%s'", restriction_caps_str, caps_str));
g_free (caps_str);
g_free (restriction_caps_str);
ret = FALSE;
goto end;
}
}
if (GST_IS_ENCODING_CONTAINER_PROFILE (prof)) {
if (GST_IS_DISCOVERER_CONTAINER_INFO (stream)) {
ret =
ret & compare_container_profile_with_container_discoverer_stream (fc,
(GstEncodingContainerProfile *) prof,
(GstDiscovererContainerInfo *) stream, msg);
} else {
SET_MESSAGE (msg,
g_strdup_printf ("Expected container profile but found stream of %s",
gst_discoverer_stream_info_get_stream_type_nick (stream)));
ret = FALSE;
goto end;
}
} else if (GST_IS_ENCODING_VIDEO_PROFILE (prof)) {
if (!GST_IS_DISCOVERER_VIDEO_INFO (stream)) {
SET_MESSAGE (msg,
g_strdup_printf ("Expected video profile but found stream of %s",
gst_discoverer_stream_info_get_stream_type_nick (stream)));
ret = FALSE;
goto end;
}
} else if (GST_IS_ENCODING_AUDIO_PROFILE (prof)) {
if (!GST_IS_DISCOVERER_AUDIO_INFO (stream)) {
SET_MESSAGE (msg,
g_strdup_printf ("Expected audio profile but found stream of %s",
gst_discoverer_stream_info_get_stream_type_nick (stream)));
ret = FALSE;
goto end;
}
} else {
g_assert_not_reached ();
return FALSE;
}
end:
if (caps)
gst_caps_unref (caps);
return ret;
}
static gboolean
gst_srtp_dec_sink_query (GstPad * pad, GstObject * parent, GstQuery * query,
gboolean is_rtcp)
{
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:
{
GstCaps *filter = NULL;
GstCaps *other_filter = NULL;
GstCaps *template_caps;
GstPad *otherpad;
GstCaps *other_caps;
GstCaps *ret;
int i;
gst_query_parse_caps (query, &filter);
otherpad = (GstPad *) gst_pad_get_element_private (pad);
if (filter) {
other_filter = gst_caps_copy (filter);
for (i = 0; i < gst_caps_get_size (other_filter); i++) {
GstStructure *ps = gst_caps_get_structure (other_filter, i);
if (is_rtcp)
gst_structure_set_name (ps, "application/x-rtcp");
else
gst_structure_set_name (ps, "application/x-rtp");
gst_structure_remove_fields (ps, "srtp-key", "srtp-cipher",
"srtp-auth", "srtcp-cipher", "srtcp-auth", NULL);
}
}
other_caps = gst_pad_peer_query_caps (otherpad, other_filter);
if (other_filter)
gst_caps_unref (other_filter);
if (!other_caps) {
goto return_template;
}
template_caps = gst_pad_get_pad_template_caps (otherpad);
ret = gst_caps_intersect_full (other_caps, template_caps,
GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (other_caps);
gst_caps_unref (template_caps);
ret = gst_caps_make_writable (ret);
for (i = 0; i < gst_caps_get_size (ret); i++) {
GstStructure *ps = gst_caps_get_structure (ret, i);
if (is_rtcp)
gst_structure_set_name (ps, "application/x-srtcp");
else
gst_structure_set_name (ps, "application/x-srtp");
}
if (filter) {
GstCaps *tmp;
tmp = gst_caps_intersect (ret, filter);
gst_caps_unref (ret);
ret = tmp;
}
gst_query_set_caps_result (query, ret);
gst_caps_unref (ret);
return TRUE;
return_template:
ret = gst_pad_get_pad_template_caps (pad);
gst_query_set_caps_result (query, ret);
gst_caps_unref (ret);
return TRUE;
}
default:
return gst_pad_query_default (pad, parent, query);
}
}
static GstCaps *
gst_shape_wipe_src_getcaps (GstPad * pad)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
GstCaps *ret, *tmp;
if (GST_PAD_CAPS (pad))
return gst_caps_copy (GST_PAD_CAPS (pad));
else if (GST_PAD_CAPS (self->video_sinkpad))
return gst_caps_copy (GST_PAD_CAPS (self->video_sinkpad));
tmp = gst_pad_peer_get_caps (self->video_sinkpad);
if (tmp) {
ret =
gst_caps_intersect (tmp,
gst_pad_get_pad_template_caps (self->video_sinkpad));
gst_caps_unref (tmp);
} else {
ret = gst_caps_copy (gst_pad_get_pad_template_caps (self->video_sinkpad));
}
tmp = gst_pad_peer_get_caps (pad);
if (tmp) {
GstCaps *intersection;
intersection = gst_caps_intersect (tmp, ret);
gst_caps_unref (tmp);
gst_caps_unref (ret);
ret = intersection;
}
if (self->height && self->width) {
guint i, n;
n = gst_caps_get_size (ret);
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (ret, i);
gst_structure_set (s, "width", G_TYPE_INT, self->width, "height",
G_TYPE_INT, self->height, NULL);
}
}
tmp = gst_pad_peer_get_caps (self->mask_sinkpad);
if (tmp) {
GstCaps *intersection, *tmp2;
guint i, n;
tmp = gst_caps_make_writable (tmp);
tmp2 = gst_caps_copy (gst_pad_get_pad_template_caps (self->mask_sinkpad));
intersection = gst_caps_intersect (tmp, tmp2);
gst_caps_unref (tmp);
gst_caps_unref (tmp2);
tmp = intersection;
n = gst_caps_get_size (tmp);
tmp2 = gst_caps_new_empty ();
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (tmp, i);
GstStructure *c;
gst_structure_remove_fields (s, "format", "bpp", "depth", "endianness",
"framerate", "red_mask", "green_mask", "blue_mask", "alpha_mask",
NULL);
gst_structure_set_name (s, "video/x-raw-yuv");
c = gst_structure_copy (s);
gst_caps_append_structure (tmp2, c);
}
gst_caps_append (tmp, tmp2);
intersection = gst_caps_intersect (tmp, ret);
gst_caps_unref (tmp);
gst_caps_unref (ret);
ret = intersection;
}
gst_object_unref (self);
GST_DEBUG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
return ret;
}
/*
Given the pad in this direction and the given caps, what caps are allowed on
the other pad in this element ?
*/
static GstCaps *
gst_cenc_decrypt_transform_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *res = NULL;
gint i, j;
g_return_val_if_fail (direction != GST_PAD_UNKNOWN, NULL);
GST_DEBUG_OBJECT (base, "direction: %s caps: %" GST_PTR_FORMAT " filter:"
" %" GST_PTR_FORMAT, (direction == GST_PAD_SRC) ? "Src" : "Sink",
caps, filter);
if(direction == GST_PAD_SRC && gst_caps_is_any (caps)){
res = gst_pad_get_pad_template_caps (GST_BASE_TRANSFORM_SINK_PAD (base));
goto filter;
}
res = gst_caps_new_empty ();
for (i = 0; i < gst_caps_get_size (caps); ++i) {
GstStructure *in = gst_caps_get_structure (caps, i);
GstStructure *out = NULL;
if (direction == GST_PAD_SINK) {
gint n_fields;
if (!gst_structure_has_field (in, "original-media-type"))
continue;
out = gst_structure_copy (in);
n_fields = gst_structure_n_fields (in);
gst_structure_set_name (out,
gst_structure_get_string (out, "original-media-type"));
/* filter out the DRM related fields from the down-stream caps */
for(j=n_fields-1; j>=0; --j){
const gchar *field_name;
field_name = gst_structure_nth_field_name (in, j);
if( g_str_has_prefix(field_name, "protection-system") ||
g_str_has_prefix(field_name, "original-media-type") ){
gst_structure_remove_field (out, field_name);
}
}
gst_cenc_decrypt_append_if_not_duplicate(res, out);
} else { /* GST_PAD_SRC */
gint n_fields;
GstStructure *tmp = NULL;
guint p;
tmp = gst_structure_copy (in);
gst_cenc_remove_codec_fields (tmp);
for(p=0; gst_cenc_decrypt_protection_ids[p]; ++p){
/* filter out the audio/video related fields from the down-stream
caps, because they are not relevant to the input caps of this
element and they can cause caps negotiation failures with
adaptive bitrate streams */
out = gst_structure_copy (tmp);
gst_structure_set (out,
"protection-system", G_TYPE_STRING, gst_cenc_decrypt_protection_ids[p],
"original-media-type", G_TYPE_STRING, gst_structure_get_name (in),
NULL);
gst_structure_set_name (out, "application/x-cenc");
gst_cenc_decrypt_append_if_not_duplicate(res, out);
}
gst_structure_free (tmp);
}
}
if(direction == GST_PAD_SINK && gst_caps_get_size (res)==0){
gst_caps_unref (res);
res = gst_caps_new_any ();
}
filter:
if (filter) {
GstCaps *intersection;
GST_DEBUG_OBJECT (base, "Using filter caps %" GST_PTR_FORMAT, filter);
intersection =
gst_caps_intersect_full (res, filter, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (res);
res = intersection;
}
GST_DEBUG_OBJECT (base, "returning %" GST_PTR_FORMAT, res);
return res;
}
static GstCaps* webkitMediaPlayReadyDecryptTransformCaps(GstBaseTransform* base, GstPadDirection direction, GstCaps* caps, GstCaps* filter)
{
g_return_val_if_fail(direction != GST_PAD_UNKNOWN, nullptr);
GstCaps* transformedCaps = gst_caps_new_empty();
GST_LOG_OBJECT(base, "direction: %s, caps: %" GST_PTR_FORMAT " filter:"
" %" GST_PTR_FORMAT, (direction == GST_PAD_SRC) ? "src" : "sink", caps, filter);
unsigned size = gst_caps_get_size(caps);
for (unsigned i = 0; i < size; ++i) {
GstStructure* in = gst_caps_get_structure(caps, i);
GstStructure* out = nullptr;
if (direction == GST_PAD_SINK) {
if (!gst_structure_has_field(in, "original-media-type"))
continue;
out = gst_structure_copy(in);
gst_structure_set_name(out, gst_structure_get_string(out, "original-media-type"));
/* filter out the DRM related fields from the down-stream caps */
for (int j = 0; j < gst_structure_n_fields(in); ++j) {
const gchar* fieldName = gst_structure_nth_field_name(in, j);
if (g_str_has_prefix(fieldName, "protection-system")
|| g_str_has_prefix(fieldName, "original-media-type"))
gst_structure_remove_field(out, fieldName);
}
} else {
GstStructure* tmp = gst_structure_copy(in);
/* filter out the video related fields from the up-stream caps,
because they are not relevant to the input caps of this element and
can cause caps negotiation failures with adaptive bitrate streams */
for (int index = gst_structure_n_fields(tmp) - 1; index >= 0; --index) {
const gchar* fieldName = gst_structure_nth_field_name(tmp, index);
GST_TRACE("Check field \"%s\" for removal", fieldName);
if (!g_strcmp0(fieldName, "base-profile")
|| !g_strcmp0(fieldName, "codec_data")
|| !g_strcmp0(fieldName, "height")
|| !g_strcmp0(fieldName, "framerate")
|| !g_strcmp0(fieldName, "level")
|| !g_strcmp0(fieldName, "pixel-aspect-ratio")
|| !g_strcmp0(fieldName, "profile")
|| !g_strcmp0(fieldName, "rate")
|| !g_strcmp0(fieldName, "width")) {
gst_structure_remove_field(tmp, fieldName);
GST_TRACE("Removing field %s", fieldName);
}
}
out = gst_structure_copy(tmp);
gst_structure_set(out, "protection-system", G_TYPE_STRING, PLAYREADY_PROTECTION_SYSTEM_ID,
"original-media-type", G_TYPE_STRING, gst_structure_get_name(in), nullptr);
gst_structure_set_name(out, "application/x-cenc");
gst_structure_free(tmp);
}
webkitMediaPlayReadyDecryptCapsAppendIfNotDuplicate(transformedCaps, out);
}
if (filter) {
GstCaps* intersection;
GST_LOG_OBJECT(base, "Using filter caps %" GST_PTR_FORMAT, filter);
intersection = gst_caps_intersect_full(transformedCaps, filter, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref(transformedCaps);
transformedCaps = intersection;
}
GST_LOG_OBJECT(base, "returning %" GST_PTR_FORMAT, transformedCaps);
return transformedCaps;
}
static GstCaps* webkitMediaCommonEncryptionDecryptTransformCaps(GstBaseTransform* base, GstPadDirection direction, GstCaps* caps, GstCaps* filter)
{
if (direction == GST_PAD_UNKNOWN)
return nullptr;
GstCaps* transformedCaps = gst_caps_new_empty();
WebKitMediaCommonEncryptionDecrypt* self = WEBKIT_MEDIA_CENC_DECRYPT(base);
WebKitMediaCommonEncryptionDecryptClass* klass = WEBKIT_MEDIA_CENC_DECRYPT_GET_CLASS(self);
GST_DEBUG_OBJECT(base, "direction: %s, caps: %" GST_PTR_FORMAT " filter: %" GST_PTR_FORMAT, (direction == GST_PAD_SRC) ? "src" : "sink", caps, filter);
unsigned size = gst_caps_get_size(caps);
for (unsigned i = 0; i < size; ++i) {
GstStructure* in = gst_caps_get_structure(caps, i);
GstStructure* out = nullptr;
if (direction == GST_PAD_SINK) {
if (!gst_structure_has_field(in, "original-media-type"))
continue;
out = gst_structure_copy(in);
gst_structure_set_name(out, gst_structure_get_string(out, "original-media-type"));
// Filter out the DRM related fields from the down-stream caps.
for (int j = 0; j < gst_structure_n_fields(in); ++j) {
const gchar* fieldName = gst_structure_nth_field_name(in, j);
if (g_str_has_prefix(fieldName, "protection-system")
|| g_str_has_prefix(fieldName, "original-media-type"))
gst_structure_remove_field(out, fieldName);
}
} else {
GstStructure* tmp = gst_structure_copy(in);
// Filter out the video related fields from the up-stream caps,
// because they are not relevant to the input caps of this element and
// can cause caps negotiation failures with adaptive bitrate streams.
for (int index = gst_structure_n_fields(tmp) - 1; index >= 0; --index) {
const gchar* fieldName = gst_structure_nth_field_name(tmp, index);
GST_TRACE("Check field \"%s\" for removal", fieldName);
if (!g_strcmp0(fieldName, "base-profile")
|| !g_strcmp0(fieldName, "codec_data")
|| !g_strcmp0(fieldName, "height")
|| !g_strcmp0(fieldName, "framerate")
|| !g_strcmp0(fieldName, "level")
|| !g_strcmp0(fieldName, "pixel-aspect-ratio")
|| !g_strcmp0(fieldName, "profile")
|| !g_strcmp0(fieldName, "rate")
|| !g_strcmp0(fieldName, "width")) {
gst_structure_remove_field(tmp, fieldName);
GST_TRACE("Removing field %s", fieldName);
}
}
out = gst_structure_copy(tmp);
gst_structure_set(out, "protection-system", G_TYPE_STRING, klass->protectionSystemId,
"original-media-type", G_TYPE_STRING, gst_structure_get_name(in), nullptr);
gst_structure_set_name(out, "application/x-cenc");
gst_structure_free(tmp);
}
bool duplicate = false;
unsigned size = gst_caps_get_size(transformedCaps);
for (unsigned index = 0; !duplicate && index < size; ++index) {
GstStructure* s = gst_caps_get_structure(transformedCaps, index);
if (gst_structure_is_equal(s, out))
duplicate = true;
}
if (!duplicate)
gst_caps_append_structure(transformedCaps, out);
else
gst_structure_free(out);
}
if (filter) {
GstCaps* intersection;
GST_DEBUG_OBJECT(base, "Using filter caps %" GST_PTR_FORMAT, filter);
intersection = gst_caps_intersect_full(transformedCaps, filter, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref(transformedCaps);
transformedCaps = intersection;
}
GST_DEBUG_OBJECT(base, "returning %" GST_PTR_FORMAT, transformedCaps);
return transformedCaps;
}
static gboolean
gst_raw_audio_parse_caps_to_config (GstRawAudioParse * raw_audio_parse,
GstCaps * caps, GstRawAudioParseConfig * config)
{
gboolean ret = FALSE;
GstStructure *structure;
/* Caps might get copied, and the copy needs to be unref'd.
* Also, the caller retains ownership over the original caps.
* So, to make this mechanism also work with cases where the
* caps are *not* copied, ref the original caps here first. */
gst_caps_ref (caps);
structure = gst_caps_get_structure (caps, 0);
/* For unaligned raw data, the output caps stay the same,
* except that audio/x-unaligned-raw becomes audio/x-raw,
* since the parser aligns the sample data */
if (gst_structure_has_name (structure, "audio/x-unaligned-raw")) {
/* Copy the caps to be able to modify them */
GstCaps *new_caps = gst_caps_copy (caps);
gst_caps_unref (caps);
caps = new_caps;
/* Change the media type to audio/x-raw , otherwise
* gst_audio_info_from_caps() won't work */
structure = gst_caps_get_structure (caps, 0);
gst_structure_set_name (structure, "audio/x-raw");
}
if (gst_structure_has_name (structure, "audio/x-raw")) {
guint num_channels;
GstAudioInfo info;
if (!gst_audio_info_from_caps (&info, caps)) {
GST_ERROR_OBJECT (raw_audio_parse,
"failed to parse caps %" GST_PTR_FORMAT, (gpointer) caps);
goto done;
}
num_channels = GST_AUDIO_INFO_CHANNELS (&info);
config->format = GST_RAW_AUDIO_PARSE_FORMAT_PCM;
config->pcm_format = GST_AUDIO_INFO_FORMAT (&info);
config->bpf = GST_AUDIO_INFO_BPF (&info);
config->sample_rate = GST_AUDIO_INFO_RATE (&info);
config->interleaved =
(GST_AUDIO_INFO_LAYOUT (&info) == GST_AUDIO_LAYOUT_INTERLEAVED);
gst_raw_audio_parse_set_config_channels (config, num_channels, 0, FALSE);
memcpy (config->channel_positions, &(GST_AUDIO_INFO_POSITION (&info, 0)),
sizeof (GstAudioChannelPosition) * num_channels);
} else if (gst_structure_has_name (structure, "audio/x-alaw")
|| gst_structure_has_name (structure, "audio/x-mulaw")) {
gint i;
guint64 channel_mask;
guint num_channels;
config->format =
gst_structure_has_name (structure,
"audio/x-alaw") ? GST_RAW_AUDIO_PARSE_FORMAT_ALAW :
GST_RAW_AUDIO_PARSE_FORMAT_MULAW;
if (!gst_structure_get_int (structure, "rate", &i)) {
GST_ERROR_OBJECT (raw_audio_parse,
"missing rate value in caps %" GST_PTR_FORMAT, (gpointer) caps);
goto done;
}
config->sample_rate = i;
if (!gst_structure_get_int (structure, "channels", &i)) {
GST_ERROR_OBJECT (raw_audio_parse,
"missing channels value in caps %" GST_PTR_FORMAT, (gpointer) caps);
goto done;
}
num_channels = i;
if (!gst_structure_get (structure, "channel-mask", GST_TYPE_BITMASK,
&channel_mask, NULL)) {
channel_mask = gst_audio_channel_get_fallback_mask (num_channels);
GST_DEBUG_OBJECT (raw_audio_parse,
"input caps have no channel mask - using fallback mask %#"
G_GINT64_MODIFIER "x for %u channels", channel_mask, num_channels);
}
if (!gst_raw_audio_parse_set_config_channels (config, num_channels,
channel_mask, TRUE)) {
GST_ERROR_OBJECT (raw_audio_parse,
"could not use channel mask %#" G_GINT64_MODIFIER
"x for channel positions", channel_mask);
goto done;
}
/* A-law and mu-law both use 1 byte per sample */
config->bpf = 1 * num_channels;
} else {
GST_ERROR_OBJECT (raw_audio_parse,
"caps %" GST_PTR_FORMAT " have an unsupported media type",
(gpointer) caps);
goto done;
}
ret = TRUE;
done:
gst_caps_unref (caps);
if (ret)
config->ready = TRUE;
return ret;
}
static GstCaps *
gst_shape_wipe_mask_sink_getcaps (GstPad * pad)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
GstCaps *ret, *tmp;
guint i, n;
if (GST_PAD_CAPS (pad))
return gst_caps_copy (GST_PAD_CAPS (pad));
tmp = gst_pad_peer_get_caps (self->video_sinkpad);
if (tmp) {
ret =
gst_caps_intersect (tmp,
gst_pad_get_pad_template_caps (self->video_sinkpad));
gst_caps_unref (tmp);
} else {
ret = gst_caps_copy (gst_pad_get_pad_template_caps (self->video_sinkpad));
}
tmp = gst_pad_peer_get_caps (self->srcpad);
if (tmp) {
GstCaps *intersection;
intersection = gst_caps_intersect (ret, tmp);
gst_caps_unref (ret);
gst_caps_unref (tmp);
ret = intersection;
}
n = gst_caps_get_size (ret);
tmp = gst_caps_new_empty ();
for (i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure (ret, i);
GstStructure *t;
gst_structure_set_name (s, "video/x-raw-gray");
gst_structure_remove_fields (s, "format", "framerate", "bpp", "depth",
"endianness", "framerate", "red_mask", "green_mask", "blue_mask",
"alpha_mask", NULL);
if (self->width && self->height)
gst_structure_set (s, "width", G_TYPE_INT, self->width, "height",
G_TYPE_INT, self->height, NULL);
gst_structure_set (s, "framerate", GST_TYPE_FRACTION, 0, 1, NULL);
t = gst_structure_copy (s);
gst_structure_set (s, "bpp", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16,
"endianness", G_TYPE_INT, G_BYTE_ORDER, NULL);
gst_structure_set (t, "bpp", G_TYPE_INT, 8, "depth", G_TYPE_INT, 8, NULL);
gst_caps_append_structure (tmp, t);
}
gst_caps_append (ret, tmp);
tmp = gst_pad_peer_get_caps (pad);
if (tmp) {
GstCaps *intersection;
intersection = gst_caps_intersect (tmp, ret);
gst_caps_unref (tmp);
gst_caps_unref (ret);
ret = intersection;
}
gst_object_unref (self);
GST_DEBUG_OBJECT (pad, "Returning caps: %" GST_PTR_FORMAT, ret);
return ret;
}
