EXPORT_C
#endif
G_CONST_RETURN GValue *
gst_tag_list_get_value_index (const GstTagList * list, const gchar * tag,
guint index)
{
const GValue *value;
g_return_val_if_fail (GST_IS_TAG_LIST (list), NULL);
g_return_val_if_fail (tag != NULL, NULL);
value = gst_structure_get_value ((GstStructure *) list, tag);
if (value == NULL)
return NULL;
if (GST_VALUE_HOLDS_LIST (value)) {
if (index >= gst_value_list_get_size (value))
return NULL;
return gst_value_list_get_value (value, index);
} else {
if (index > 0)
return NULL;
return value;
}
}
static GstVaapiProfile
find_best_profile (GstCaps * caps)
{
FindBestProfileData data;
guint i, j, num_structures, num_values;
data.best_profile = GST_VAAPI_PROFILE_UNKNOWN;
data.best_score = 0;
num_structures = gst_caps_get_size (caps);
for (i = 0; i < num_structures; i++) {
GstStructure *const structure = gst_caps_get_structure (caps, i);
const GValue *const value = gst_structure_get_value (structure, "profile");
if (!value)
continue;
if (G_VALUE_HOLDS_STRING (value))
find_best_profile_value (&data, value);
else if (GST_VALUE_HOLDS_LIST (value)) {
num_values = gst_value_list_get_size (value);
for (j = 0; j < num_values; j++)
find_best_profile_value (&data, gst_value_list_get_value (value, j));
}
}
return data.best_profile;
}
static gboolean
get_string_list (GstStructure * s, const gchar * field, GQueue * queue)
{
const GValue *value;
value = gst_structure_get_value (s, field);
if (!value)
return FALSE;
if (GST_VALUE_HOLDS_LIST (value)) {
guint i;
if (gst_value_list_get_size (value) == 0)
return FALSE;
for (i = 0; i < gst_value_list_get_size (value); i++) {
const GValue *item = gst_value_list_get_value (value, i);
if (G_VALUE_HOLDS_STRING (item))
g_queue_push_tail (queue, g_value_dup_string (item));
}
} else if (G_VALUE_HOLDS_STRING (value)) {
g_queue_push_tail (queue, g_value_dup_string (value));
}
return TRUE;
}
std::vector<std::string> gst_list_to_vector (const GValue* gst_list)
{
std::vector<std::string> ret;
if (!GST_VALUE_HOLDS_LIST(gst_list))
{
tcam_error("Given GValue is not a list.");
return ret;
}
for (unsigned int x = 0; x < gst_value_list_get_size(gst_list); ++x)
{
const GValue* val = gst_value_list_get_value(gst_list, x);
if (G_VALUE_TYPE(val) == G_TYPE_STRING)
{
ret.push_back(g_value_get_string(val));
}
else
{
tcam_error("NOT IMPLEMENTED. TYPE CAN NOT BE INTERPRETED");
}
}
return ret;
}
static void
get_supported_framerates (ofGstVideoFormat &video_format, GstStructure &structure)
{
const GValue *framerates;
int i, j;
framerates = gst_structure_get_value (&structure, "framerate");
if (GST_VALUE_HOLDS_FRACTION (framerates))
{
video_format.num_framerates = 1;
video_format.framerates = new ofGstFramerate[video_format.num_framerates];
video_format.framerates[0].numerator = gst_value_get_fraction_numerator (framerates);
video_format.framerates[0].denominator = gst_value_get_fraction_denominator (framerates);
}
else if (GST_VALUE_HOLDS_LIST (framerates))
{
video_format.num_framerates = gst_value_list_get_size (framerates);
video_format.framerates = new ofGstFramerate[video_format.num_framerates];
for (i = 0; i < video_format.num_framerates; i++)
{
const GValue *value;
value = gst_value_list_get_value (framerates, i);
video_format.framerates[i].numerator = gst_value_get_fraction_numerator (value);
video_format.framerates[i].denominator = gst_value_get_fraction_denominator (value);
}
}
else if (GST_VALUE_HOLDS_FRACTION_RANGE (framerates))
{
int numerator_min, denominator_min, numerator_max, denominator_max;
const GValue *fraction_range_min;
const GValue *fraction_range_max;
fraction_range_min = gst_value_get_fraction_range_min (framerates);
numerator_min = gst_value_get_fraction_numerator (fraction_range_min);
denominator_min = gst_value_get_fraction_denominator (fraction_range_min);
fraction_range_max = gst_value_get_fraction_range_max (framerates);
numerator_max = gst_value_get_fraction_numerator (fraction_range_max);
denominator_max = gst_value_get_fraction_denominator (fraction_range_max);
g_print ("FractionRange: %d/%d - %d/%d\n", numerator_min, denominator_min, numerator_max, denominator_max);
video_format.num_framerates = (numerator_max - numerator_min + 1) * (denominator_max - denominator_min + 1);
video_format.framerates = new ofGstFramerate[video_format.num_framerates];
int k = 0;
for (i = numerator_min; i <= numerator_max; i++)
{
for (j = denominator_min; j <= denominator_max; j++)
{
video_format.framerates[k].numerator = i;
video_format.framerates[k].denominator = j;
k++;
}
}
}
else
{
g_critical ("GValue type %s, cannot be handled for framerates", G_VALUE_TYPE_NAME (framerates));
}
}
static void
gst_video_convert_fixate_format (GstBaseTransform * base, GstCaps * caps,
GstCaps * result)
{
GstStructure *ins, *outs;
const gchar *in_format;
const GstVideoFormatInfo *in_info, *out_info = NULL;
gint min_loss = G_MAXINT;
guint i, capslen;
ins = gst_caps_get_structure (caps, 0);
in_format = gst_structure_get_string (ins, "format");
if (!in_format)
return;
GST_DEBUG_OBJECT (base, "source format %s", in_format);
in_info =
gst_video_format_get_info (gst_video_format_from_string (in_format));
if (!in_info)
return;
outs = gst_caps_get_structure (result, 0);
capslen = gst_caps_get_size (result);
GST_DEBUG_OBJECT (base, "iterate %d structures", capslen);
for (i = 0; i < capslen; i++) {
GstStructure *tests;
const GValue *format;
tests = gst_caps_get_structure (result, i);
format = gst_structure_get_value (tests, "format");
/* should not happen */
if (format == NULL)
continue;
if (GST_VALUE_HOLDS_LIST (format)) {
gint j, len;
len = gst_value_list_get_size (format);
GST_DEBUG_OBJECT (base, "have %d formats", len);
for (j = 0; j < len; j++) {
const GValue *val;
val = gst_value_list_get_value (format, j);
if (G_VALUE_HOLDS_STRING (val)) {
score_value (base, in_info, val, &min_loss, &out_info);
if (min_loss == 0)
break;
}
}
} else if (G_VALUE_HOLDS_STRING (format)) {
score_value (base, in_info, format, &min_loss, &out_info);
}
}
if (out_info)
gst_structure_set (outs, "format", G_TYPE_STRING,
GST_VIDEO_FORMAT_INFO_NAME (out_info), NULL);
}
std::string VideoV4lSource::srcCaps(unsigned int framerateIndex) const
{
std::ostringstream capsStr;
GstStateChangeReturn ret = gst_element_set_state(source_, GST_STATE_READY);
if (ret not_eq GST_STATE_CHANGE_SUCCESS)
THROW_ERROR("Could not change v4l2src state to READY");
GstPad *srcPad = gst_element_get_static_pad(source_, "src");
GstCaps *caps = gst_pad_get_caps(srcPad);
GstStructure *structure = gst_caps_get_structure(caps, 0);
const GValue *val = gst_structure_get_value(structure, "framerate");
LOG_DEBUG("Caps structure from v4l2src srcpad: " << gst_structure_to_string(structure));
gint framerate_numerator, framerate_denominator;
if (GST_VALUE_HOLDS_LIST(val))
{
// trying another one
if (framerateIndex >= gst_value_list_get_size(val))
THROW_ERROR("Framerate index out of range");
framerate_numerator = gst_value_get_fraction_numerator((gst_value_list_get_value(val, framerateIndex)));
framerate_denominator = gst_value_get_fraction_denominator((gst_value_list_get_value(val, framerateIndex)));
}
else
{
// FIXME: this is really bad, we should be iterating over framerates and resolutions until we find a good one
if (framerateIndex > 0)
LOG_ERROR("Caps parameters haven't been changed and have failed before");
framerate_numerator = gst_value_get_fraction_numerator(val);
framerate_denominator = gst_value_get_fraction_denominator(val);
}
gst_caps_unref(caps);
gst_object_unref(srcPad);
// use default from gst
std::string capsSuffix = boost::lexical_cast<std::string>(framerate_numerator);
capsSuffix += "/";
capsSuffix += boost::lexical_cast<std::string>(framerate_denominator);
if (v4l2util::isInterlaced(deviceStr()))
capsSuffix +=", interlaced=true";
capsSuffix += ", pixel-aspect-ratio=";
capsSuffix += config_.pixelAspectRatio();
capsStr << "video/x-raw-yuv, width=" << config_.captureWidth() << ", height="
<< config_.captureHeight()
<< ", framerate="
<< capsSuffix;
LOG_DEBUG("V4l2src caps are " << capsStr.str());
ret = gst_element_set_state(source_, GST_STATE_NULL);
if (ret not_eq GST_STATE_CHANGE_SUCCESS)
THROW_ERROR("Could not change v4l2src state to NULL");
return capsStr.str();
}
static void
gst_value_fraction_get_extremes (const GValue * v,
gint * min_num, gint * min_denom, gint * max_num, gint * max_denom)
{
if (GST_VALUE_HOLDS_FRACTION (v)) {
*min_num = *max_num = gst_value_get_fraction_numerator (v);
*min_denom = *max_denom = gst_value_get_fraction_denominator (v);
} else if (GST_VALUE_HOLDS_FRACTION_RANGE (v)) {
const GValue *min, *max;
min = gst_value_get_fraction_range_min (v);
*min_num = gst_value_get_fraction_numerator (min);
*min_denom = gst_value_get_fraction_denominator (min);
max = gst_value_get_fraction_range_max (v);
*max_num = gst_value_get_fraction_numerator (max);
*max_denom = gst_value_get_fraction_denominator (max);
} else if (GST_VALUE_HOLDS_LIST (v)) {
gint min_n = G_MAXINT, min_d = 1, max_n = 0, max_d = 1;
int i, n;
*min_num = G_MAXINT;
*min_denom = 1;
*max_num = 0;
*max_denom = 1;
n = gst_value_list_get_size (v);
g_assert (n > 0);
for (i = 0; i < n; i++) {
const GValue *t = gst_value_list_get_value (v, i);
gst_value_fraction_get_extremes (t, &min_n, &min_d, &max_n, &max_d);
if (gst_util_fraction_compare (min_n, min_d, *min_num, *min_denom) < 0) {
*min_num = min_n;
*min_denom = min_d;
}
if (gst_util_fraction_compare (max_n, max_d, *max_num, *max_denom) > 0) {
*max_num = max_n;
*max_denom = max_d;
}
}
} else {
g_warning ("Unknown type for framerate");
*min_num = 0;
*min_denom = 1;
*max_num = G_MAXINT;
*max_denom = 1;
}
}
static void
check_pad_template (GstPadTemplate * tmpl)
{
const GValue *list_val, *fmt_val;
GstStructure *s;
gboolean *formats_supported;
GstCaps *caps;
guint i, num_formats;
num_formats = get_num_formats ();
formats_supported = g_new0 (gboolean, num_formats);
caps = gst_pad_template_get_caps (tmpl);
/* If this fails, we need to update this unit test */
fail_unless_equals_int (gst_caps_get_size (caps), 1);
s = gst_caps_get_structure (caps, 0);
fail_unless (gst_structure_has_name (s, "video/x-raw"));
list_val = gst_structure_get_value (s, "format");
fail_unless (list_val != NULL);
/* If this fails, we need to update this unit test */
fail_unless (GST_VALUE_HOLDS_LIST (list_val));
for (i = 0; i < gst_value_list_get_size (list_val); ++i) {
GstVideoFormat fmt;
const gchar *fmt_str;
fmt_val = gst_value_list_get_value (list_val, i);
fail_unless (G_VALUE_HOLDS_STRING (fmt_val));
fmt_str = g_value_get_string (fmt_val);
GST_LOG ("format string: '%s'", fmt_str);
fmt = gst_video_format_from_string (fmt_str);
fail_unless (fmt != GST_VIDEO_FORMAT_UNKNOWN);
formats_supported[(guint) fmt] = TRUE;
}
gst_caps_unref (caps);
for (i = 2; i < num_formats; ++i) {
if (!formats_supported[i]) {
g_error ("videoconvert doesn't support format '%s'",
gst_video_format_to_string ((GstVideoFormat) i));
}
}
g_free (formats_supported);
}
static void get_supported_framerates (ofGstVideoFormat &video_format, GstStructure &structure)
{
const GValue *framerates;
ofGstFramerate framerate;
framerates = gst_structure_get_value (&structure, "framerate");
if (GST_VALUE_HOLDS_FRACTION (framerates)){
framerate.numerator = gst_value_get_fraction_numerator (framerates);
framerate.denominator = gst_value_get_fraction_denominator (framerates);
video_format.framerates.push_back(framerate);
ofLog(OF_LOG_NOTICE,"%d/%d ", framerate.numerator,
framerate.denominator);
}else if (GST_VALUE_HOLDS_LIST (framerates)){
int num_framerates = gst_value_list_get_size (framerates);
for (int i = 0; i < num_framerates; i++){
const GValue *value = gst_value_list_get_value (framerates, i);
framerate.numerator = gst_value_get_fraction_numerator (value);
framerate.denominator = gst_value_get_fraction_denominator (value);
video_format.framerates.push_back(framerate);
ofLog(OF_LOG_NOTICE,"%d/%d ", framerate.numerator,
framerate.denominator);
}
}else if (GST_VALUE_HOLDS_FRACTION_RANGE (framerates)){
int numerator_min, denominator_min, numerator_max, denominator_max;
const GValue *fraction_range_min;
const GValue *fraction_range_max;
fraction_range_min = gst_value_get_fraction_range_min (framerates);
numerator_min = gst_value_get_fraction_numerator (fraction_range_min);
denominator_min = gst_value_get_fraction_denominator (fraction_range_min);
fraction_range_max = gst_value_get_fraction_range_max (framerates);
numerator_max = gst_value_get_fraction_numerator (fraction_range_max);
denominator_max = gst_value_get_fraction_denominator (fraction_range_max);
ofLog(OF_LOG_NOTICE,"from %d/%d to %d/%d", numerator_min,
denominator_max, numerator_max, denominator_min);
for (int i = numerator_min; i <= numerator_max; i++){
for (int j = denominator_min; j <= denominator_max; j++){
framerate.numerator = i;
framerate.denominator = j;
video_format.framerates.push_back(framerate);
}
}
}else{
ofLog (OF_LOG_WARNING,"unknown GValue type %s for framerates", G_VALUE_TYPE_NAME (framerates));
}
}
static GstVideoFormat
gst_vaapi_find_preferred_format (const GValue * format_list,
GstVideoFormat native_format)
{
const GValue *frmt;
GstVideoFormat out_format;
guint i;
/* if one format, that is the one */
if (G_VALUE_HOLDS_STRING (format_list))
return gst_video_format_from_string (g_value_get_string (format_list));
if (!GST_VALUE_HOLDS_LIST (format_list)) {
GST_ERROR ("negotiated caps do not have a valid format");
return GST_VIDEO_FORMAT_UNKNOWN;
}
if (native_format == GST_VIDEO_FORMAT_UNKNOWN
|| native_format == GST_VIDEO_FORMAT_ENCODED) {
native_format = GST_VIDEO_FORMAT_NV12; /* default VA format */
}
/* search our native format in the list */
for (i = 0; i < gst_value_list_get_size (format_list); i++) {
frmt = gst_value_list_get_value (format_list, i);
out_format = gst_video_format_from_string (g_value_get_string (frmt));
/* GStreamer do not handle encoded formats nicely. Try the next
* one. */
if (out_format == GST_VIDEO_FORMAT_ENCODED)
continue;
if (native_format == out_format)
return out_format;
}
/* just pick the first valid format in the list */
i = 0;
do {
frmt = gst_value_list_get_value (format_list, i++);
out_format = gst_video_format_from_string (g_value_get_string (frmt));
} while (out_format == GST_VIDEO_FORMAT_ENCODED);
return out_format;
}
/**
* Tries to guess the frame rate for a V4L2 source.
*/
std::string Pipeline::guess_source_caps(unsigned int framerateIndex) const
{
bool is_verbose = owner_->get_configuration()->get_verbose();
if (is_verbose)
LOG_DEBUG("Trying to guess source FPS " << framerateIndex);
std::ostringstream capsStr;
GstStateChangeReturn ret = gst_element_set_state(videosrc_, GST_STATE_READY);
if (ret not_eq GST_STATE_CHANGE_SUCCESS)
THROW_ERROR("Could not change v4l2src state to READY");
GstPad *srcPad = gst_element_get_static_pad(videosrc_, "src");
GstCaps *caps = gst_pad_get_caps(srcPad);
GstStructure *structure = gst_caps_get_structure(caps, 0);
const GValue *val = gst_structure_get_value(structure, "framerate");
if (is_verbose)
LOG_DEBUG("Caps structure from v4l2src srcpad: " << gst_structure_to_string(structure));
gint framerate_numerator = 1;
gint framerate_denominator = 1;
if (GST_VALUE_HOLDS_LIST(val))
{
// trying another one
if (framerateIndex >= gst_value_list_get_size(val))
THROW_ERROR("Framerate index out of range");
framerate_numerator = gst_value_get_fraction_numerator((gst_value_list_get_value(val, framerateIndex)));
framerate_denominator = gst_value_get_fraction_denominator((gst_value_list_get_value(val, framerateIndex)));
}
else
{
// FIXME: this is really bad, we should be iterating over framerates and resolutions until we find a good one
if (framerateIndex > 0)
LOG_ERROR("Caps parameters haven't been changed and have failed before");
framerate_numerator = gst_value_get_fraction_numerator(val);
framerate_denominator = gst_value_get_fraction_denominator(val);
}
gst_caps_unref(caps);
gst_object_unref(srcPad);
// use default from gst
std::string capsSuffix = boost::lexical_cast<std::string>(framerate_numerator);
capsSuffix += "/";
capsSuffix += boost::lexical_cast<std::string>(framerate_denominator);
// TODO: handle interlaced video capture stream
if (v4l2util::isInterlaced(owner_->get_configuration()->videoSource()))
{
capsSuffix +=", interlaced=true";
}
// TODO: handle aspect ratio
// capsSuffix += ", pixel-aspect-ratio=1/1";
//capsSuffix += config_.pixelAspectRatio();
//capsSuffix += "4:3";
Configuration *config = owner_->get_configuration();
capsStr << "video/x-raw-yuv, width="
<< config->get_capture_width()
<< ", height="
<< config->get_capture_height()
<< ", framerate="
<< capsSuffix;
if (is_verbose)
LOG_DEBUG("Video source caps are " << capsStr.str());
ret = gst_element_set_state(videosrc_, GST_STATE_NULL);
if (ret not_eq GST_STATE_CHANGE_SUCCESS)
THROW_ERROR("Could not change v4l2src state to NULL");
return capsStr.str();
}
int
main (int argc,
char *argv[])
{
/* Initialisation */
gst_init (&argc, &argv);
GList *element_list = gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER,
GST_RANK_NONE);
GList *iter = element_list;
while (iter != NULL)
{
g_print ("+++++\n");
g_print ("%s -- ", gst_element_factory_get_longname ((GstElementFactory *)iter->data));
g_print ("%s\n", gst_plugin_feature_get_name ((GstPluginFeature *)iter->data));
const GList *static_pads =
gst_element_factory_get_static_pad_templates ((GstElementFactory *)iter->data);
while (NULL != static_pads)
{
GstStaticPadTemplate *pad = (GstStaticPadTemplate *)static_pads->data;
//the following is EMPTY gchar *caps_str = gst_caps_to_string (&pad->static_caps.caps);
//g_free (caps_str);
/* g_print ("string: %s\n", */
/* pad->static_caps.string); */
GstCaps *caps = gst_caps_from_string (pad->static_caps.string);
guint caps_size = gst_caps_get_size (caps);
if (! gst_caps_is_any (caps))
for (guint i = caps_size; i > 0; i--)
{
GstStructure *caps_struct = gst_caps_get_structure (caps, i-1);
if (gst_structure_has_name (caps_struct,"application/x-rtp"))
{
g_print ("string: %s\n",
gst_structure_to_string (caps_struct));
{//payload
const GValue *val = gst_structure_get_value (caps_struct, "payload");
if (NULL != val)
{
//g_print ("payload struct type %s\n", G_VALUE_TYPE_NAME (val));
if(GST_VALUE_HOLDS_INT_RANGE(val))
{
g_print ("payload min %d\n", gst_value_get_int_range_min (val));
}
if (GST_VALUE_HOLDS_LIST(val))
{
for (guint i = 0; i < gst_value_list_get_size (val); i++)
{
const GValue *item_val = gst_value_list_get_value (val, i);
g_print ("payload list %d\n", g_value_get_int (item_val));
}
}
if (G_VALUE_HOLDS_INT (val))
{
g_print ("payload int %d\n", g_value_get_int (val));
}
}
}
{ //encodeing-name
const GValue *val = gst_structure_get_value (caps_struct, "encoding-name");
if (NULL != val)
{
//g_print ("encoding-name struct type %s\n", G_VALUE_TYPE_NAME (val));
if (GST_VALUE_HOLDS_LIST(val))
{
for (guint i = 0; i < gst_value_list_get_size (val); i++)
{
const GValue *item_val = gst_value_list_get_value (val, i);
g_print ("encoding-name list %s\n", g_value_get_string (item_val));
}
}
if (G_VALUE_HOLDS_STRING (val))
{
g_print ("encoding-name string %s\n", g_value_get_string (val));
}
}
}
{//media
const GValue *val = gst_structure_get_value (caps_struct, "media");
if (NULL != val)
{
if (GST_VALUE_HOLDS_LIST(val))
{
for (guint i = 0; i < gst_value_list_get_size (val); i++)
{
const GValue *item_val = gst_value_list_get_value (val, i);
g_print ("media list %s\n", g_value_get_string (item_val));
}
}
if (G_VALUE_HOLDS_STRING (val))
{
g_print ("media string %s\n", g_value_get_string (val));
}
}
}
{//clock rate
const GValue *val = gst_structure_get_value (caps_struct, "clock-rate");
if (NULL != val)
{
//g_print ("payload struct type %s\n", G_VALUE_TYPE_NAME (val));
if(GST_VALUE_HOLDS_INT_RANGE(val))
{
g_print ("clock-rate min %d\n", gst_value_get_int_range_min (val));
}
if (GST_VALUE_HOLDS_LIST(val))
{
for (guint i = 0; i < gst_value_list_get_size (val); i++)
{
const GValue *item_val = gst_value_list_get_value (val, i);
g_print ("clock-rate list %d\n", g_value_get_int (item_val));
}
}
if (G_VALUE_HOLDS_INT (val))
{
g_print ("clock-rate int %d\n", g_value_get_int (val));
}
}
}
/* g_print ("\nencoding-name %s\n", */
/* gst_structure_get_string (caps_struct, */
/* "encoding-name")); */
}
}
static_pads = g_list_next (static_pads);
gst_caps_unref (caps);
}
iter = g_list_next (iter);
}
gst_plugin_feature_list_free (element_list);
return 0;
}
/*
* Given a GstCaps, this will return a fixed GstCaps on sucessfull conversion.
* If an error occurs, it will return NULL and error_message will contain the
* error message.
*
* error_message must be passed NULL, if an error occurs, the caller has the
* ownership of the error_message, it must be freed after use.
*/
GstCaps *gst_sbc_util_caps_fixate(GstCaps *caps, gchar **error_message)
{
GstCaps *result;
GstStructure *structure;
const GValue *value;
gboolean error = FALSE;
gint temp, rate, channels, blocks, subbands, bitpool;
const gchar *allocation = NULL;
const gchar *mode = NULL;
g_assert(*error_message == NULL);
structure = gst_caps_get_structure(caps, 0);
if (!gst_structure_has_field(structure, "rate")) {
error = TRUE;
*error_message = g_strdup("no rate");
goto error;
} else {
value = gst_structure_get_value(structure, "rate");
if (GST_VALUE_HOLDS_LIST(value))
temp = gst_sbc_select_rate_from_list(value);
else
temp = g_value_get_int(value);
rate = temp;
}
if (!gst_structure_has_field(structure, "channels")) {
error = TRUE;
*error_message = g_strdup("no channels");
goto error;
} else {
value = gst_structure_get_value(structure, "channels");
if (GST_VALUE_HOLDS_INT_RANGE(value))
temp = gst_sbc_select_channels_from_range(value);
else
temp = g_value_get_int(value);
channels = temp;
}
if (!gst_structure_has_field(structure, "blocks")) {
error = TRUE;
*error_message = g_strdup("no blocks.");
goto error;
} else {
value = gst_structure_get_value(structure, "blocks");
if (GST_VALUE_HOLDS_LIST(value))
temp = gst_sbc_select_blocks_from_list(value);
else
temp = g_value_get_int(value);
blocks = temp;
}
if (!gst_structure_has_field(structure, "subbands")) {
error = TRUE;
*error_message = g_strdup("no subbands");
goto error;
} else {
value = gst_structure_get_value(structure, "subbands");
if (GST_VALUE_HOLDS_LIST(value))
temp = gst_sbc_select_subbands_from_list(value);
else
temp = g_value_get_int(value);
subbands = temp;
}
if (!gst_structure_has_field(structure, "bitpool")) {
error = TRUE;
*error_message = g_strdup("no bitpool");
goto error;
} else {
value = gst_structure_get_value(structure, "bitpool");
if (GST_VALUE_HOLDS_INT_RANGE(value))
temp = gst_sbc_select_bitpool_from_range(value);
else
temp = g_value_get_int(value);
bitpool = temp;
}
if (!gst_structure_has_field(structure, "allocation")) {
error = TRUE;
*error_message = g_strdup("no allocation");
goto error;
} else {
value = gst_structure_get_value(structure, "allocation");
if (GST_VALUE_HOLDS_LIST(value))
allocation = gst_sbc_get_allocation_from_list(value);
else
allocation = g_value_get_string(value);
}
if (!gst_structure_has_field(structure, "mode")) {
error = TRUE;
*error_message = g_strdup("no mode");
goto error;
} else {
value = gst_structure_get_value(structure, "mode");
if (GST_VALUE_HOLDS_LIST(value)) {
mode = gst_sbc_get_mode_from_list(value, channels);
} else
mode = g_value_get_string(value);
}
/* perform validation
* if channels is 1, we must have channel mode = mono
* if channels is 2, we can't have channel mode = mono */
if ( (channels == 1 && (strcmp(mode, "mono") != 0) ) ||
( channels == 2 && ( strcmp(mode, "mono") == 0))) {
*error_message = g_strdup_printf("Invalid combination of "
"channels (%d) and channel mode (%s)",
channels, mode);
error = TRUE;
}
error:
if (error)
return NULL;
result = gst_caps_new_simple("audio/x-sbc",
"rate", G_TYPE_INT, rate,
"channels", G_TYPE_INT, channels,
"mode", G_TYPE_STRING, mode,
"blocks", G_TYPE_INT, blocks,
"subbands", G_TYPE_INT, subbands,
"allocation", G_TYPE_STRING, allocation,
"bitpool", G_TYPE_INT, bitpool,
NULL);
return result;
}
static gboolean
gst_video_crop_transform_dimension_value (const GValue * src_val,
gint delta, GValue * dest_val, GstPadDirection direction, gboolean dynamic)
{
gboolean ret = TRUE;
if (G_VALUE_HOLDS_INT (src_val)) {
gint ival = g_value_get_int (src_val);
ival = gst_video_crop_transform_dimension (ival, delta);
if (dynamic) {
if (direction == GST_PAD_SRC) {
if (ival == G_MAXINT) {
g_value_init (dest_val, G_TYPE_INT);
g_value_set_int (dest_val, ival);
} else {
g_value_init (dest_val, GST_TYPE_INT_RANGE);
gst_value_set_int_range (dest_val, ival, G_MAXINT);
}
} else {
if (ival == 1) {
g_value_init (dest_val, G_TYPE_INT);
g_value_set_int (dest_val, ival);
} else {
g_value_init (dest_val, GST_TYPE_INT_RANGE);
gst_value_set_int_range (dest_val, 1, ival);
}
}
} else {
g_value_init (dest_val, G_TYPE_INT);
g_value_set_int (dest_val, ival);
}
} else if (GST_VALUE_HOLDS_INT_RANGE (src_val)) {
gint min = gst_value_get_int_range_min (src_val);
gint max = gst_value_get_int_range_max (src_val);
min = gst_video_crop_transform_dimension (min, delta);
max = gst_video_crop_transform_dimension (max, delta);
if (dynamic) {
if (direction == GST_PAD_SRC)
max = G_MAXINT;
else
min = 1;
}
if (min == max) {
g_value_init (dest_val, G_TYPE_INT);
g_value_set_int (dest_val, min);
} else {
g_value_init (dest_val, GST_TYPE_INT_RANGE);
gst_value_set_int_range (dest_val, min, max);
}
} else if (GST_VALUE_HOLDS_LIST (src_val)) {
gint i;
g_value_init (dest_val, GST_TYPE_LIST);
for (i = 0; i < gst_value_list_get_size (src_val); ++i) {
const GValue *list_val;
GValue newval = { 0, };
list_val = gst_value_list_get_value (src_val, i);
if (gst_video_crop_transform_dimension_value (list_val, delta, &newval,
direction, dynamic))
gst_value_list_append_value (dest_val, &newval);
g_value_unset (&newval);
}
if (gst_value_list_get_size (dest_val) == 0) {
g_value_unset (dest_val);
ret = FALSE;
}
} else {
ret = FALSE;
}
return ret;
}
/*
* cheese_camera_device_get_highest_framerate:
* @framerate: a #GValue holding a framerate cap
* @numerator: destination to store the numerator of the highest rate
* @denominator: destination to store the denominator of the highest rate
*
* Get the numerator and denominator for the highest framerate stored in
* a framerate cap.
*
* Note this function does not handle framerate ranges, if @framerate
* contains a range it will return 0/0 as framerate
*/
static void
cheese_camera_device_get_highest_framerate (const GValue *framerate,
gint *numerator, gint *denominator)
{
*numerator = 0;
*denominator = 0;
if (GST_VALUE_HOLDS_FRACTION (framerate))
{
*numerator = gst_value_get_fraction_numerator (framerate);
*denominator = gst_value_get_fraction_denominator (framerate);
}
else if (GST_VALUE_HOLDS_ARRAY (framerate))
{
float curr, highest = 0;
guint i, size = gst_value_array_get_size (framerate);
for (i = 0; i < size; i++)
{
const GValue *val = gst_value_array_get_value (framerate, i);
if (!GST_VALUE_HOLDS_FRACTION (val) ||
gst_value_get_fraction_denominator (val) == 0) {
continue;
}
curr = (float)gst_value_get_fraction_numerator (val) /
(float)gst_value_get_fraction_denominator (val);
if (curr > highest && curr <= CHEESE_MAXIMUM_RATE)
{
highest = curr;
*numerator = gst_value_get_fraction_numerator (val);
*denominator = gst_value_get_fraction_denominator (val);
}
}
}
else if (GST_VALUE_HOLDS_LIST (framerate))
{
float curr, highest = 0;
guint i, size = gst_value_list_get_size (framerate);
for (i = 0; i < size; i++)
{
const GValue *val = gst_value_list_get_value(framerate, i);
if (!GST_VALUE_HOLDS_FRACTION (val) ||
gst_value_get_fraction_denominator (val) == 0)
{
continue;
}
curr = (float)gst_value_get_fraction_numerator (val) /
(float)gst_value_get_fraction_denominator (val);
if (curr > highest && curr <= CHEESE_MAXIMUM_RATE)
{
highest = curr;
*numerator = gst_value_get_fraction_numerator (val);
*denominator = gst_value_get_fraction_denominator (val);
}
}
}
}
/* If a parent is non-NULL, collected stream information will be appended to it
* (and where the information exists, it will be overriden)
*/
static GstDiscovererStreamInfo *
parse_stream_topology (GstDiscoverer * dc, const GstStructure * topology,
GstDiscovererStreamInfo * parent)
{
GstDiscovererStreamInfo *res = NULL;
GstCaps *caps = NULL;
const GValue *nval = NULL;
GST_DEBUG ("parsing: %" GST_PTR_FORMAT, topology);
nval = gst_structure_get_value (topology, "next");
if (nval == NULL || GST_VALUE_HOLDS_STRUCTURE (nval)) {
GstStructure *st = find_stream_for_node (dc, topology);
gboolean add_to_list = TRUE;
if (st) {
res = collect_information (dc, st, parent);
gst_structure_free (st);
} else {
/* Didn't find a stream structure, so let's just use the caps we have */
res = collect_information (dc, topology, parent);
}
if (nval == NULL) {
/* FIXME : aggregate with information from main streams */
GST_DEBUG ("Coudn't find 'next' ! might be the last entry");
} else {
GstCaps *caps;
const GstStructure *st;
st = gst_value_get_structure (nval);
GST_DEBUG ("next is a structure %" GST_PTR_FORMAT, st);
if (!parent)
parent = res;
if (gst_structure_id_get (st, _CAPS_QUARK, GST_TYPE_CAPS, &caps, NULL)) {
if (gst_caps_can_intersect (parent->caps, caps)) {
/* We sometimes get an extra sub-stream from the parser. If this is
* the case, we just replace the parent caps with this stream's caps
* since they might contain more information */
gst_caps_unref (parent->caps);
parent->caps = caps;
parse_stream_topology (dc, st, parent);
add_to_list = FALSE;
} else if (child_is_raw_stream (parent->caps, caps)) {
/* This is the "raw" stream corresponding to the parent. This
* contains more information than the parent, tags etc. */
parse_stream_topology (dc, st, parent);
add_to_list = FALSE;
gst_caps_unref (caps);
} else {
GstDiscovererStreamInfo *next = parse_stream_topology (dc, st, NULL);
res->next = next;
next->previous = res;
}
}
}
if (add_to_list) {
dc->priv->current_info->stream_list =
g_list_append (dc->priv->current_info->stream_list, res);
}
} else if (GST_VALUE_HOLDS_LIST (nval)) {
guint i, len;
GstDiscovererContainerInfo *cont;
GstTagList *tags;
if (!gst_structure_id_get (topology, _CAPS_QUARK,
GST_TYPE_CAPS, &caps, NULL))
GST_WARNING ("Couldn't find caps !");
len = gst_value_list_get_size (nval);
GST_DEBUG ("next is a list of %d entries", len);
cont = (GstDiscovererContainerInfo *)
gst_mini_object_new (GST_TYPE_DISCOVERER_CONTAINER_INFO);
cont->parent.caps = caps;
res = (GstDiscovererStreamInfo *) cont;
if (gst_structure_id_has_field (topology, _TAGS_QUARK)) {
GstTagList *tmp;
gst_structure_id_get (topology, _TAGS_QUARK,
GST_TYPE_STRUCTURE, &tags, NULL);
GST_DEBUG ("Merge tags %" GST_PTR_FORMAT, tags);
tmp =
gst_tag_list_merge (cont->parent.tags, (GstTagList *) tags,
GST_TAG_MERGE_APPEND);
gst_tag_list_free (tags);
if (cont->parent.tags)
gst_tag_list_free (cont->parent.tags);
cont->parent.tags = tmp;
GST_DEBUG ("Container info tags %" GST_PTR_FORMAT, tmp);
}
for (i = 0; i < len; i++) {
const GValue *subv = gst_value_list_get_value (nval, i);
const GstStructure *subst = gst_value_get_structure (subv);
GstDiscovererStreamInfo *substream;
GST_DEBUG ("%d %" GST_PTR_FORMAT, i, subst);
substream = parse_stream_topology (dc, subst, NULL);
substream->previous = res;
cont->streams =
g_list_append (cont->streams,
gst_discoverer_stream_info_ref (substream));
}
}
return res;
}
static void
check_pad_template (GstPadTemplate * tmpl)
{
const GValue *list_val, *fmt_val;
GstStructure *s;
gboolean *formats_supported;
GstCaps *caps;
guint i, num_formats;
num_formats = get_num_formats ();
formats_supported = g_new0 (gboolean, num_formats);
caps = gst_pad_template_get_caps (tmpl);
/* If this fails, we need to update this unit test */
fail_unless_equals_int (gst_caps_get_size (caps), 2);
/* Remove the ANY caps features structure */
caps = gst_caps_truncate (caps);
s = gst_caps_get_structure (caps, 0);
fail_unless (gst_structure_has_name (s, "video/x-raw"));
list_val = gst_structure_get_value (s, "format");
fail_unless (list_val != NULL);
/* If this fails, we need to update this unit test */
fail_unless (GST_VALUE_HOLDS_LIST (list_val));
for (i = 0; i < gst_value_list_get_size (list_val); ++i) {
GstVideoFormat fmt;
const gchar *fmt_str;
fmt_val = gst_value_list_get_value (list_val, i);
fail_unless (G_VALUE_HOLDS_STRING (fmt_val));
fmt_str = g_value_get_string (fmt_val);
GST_LOG ("format string: '%s'", fmt_str);
fmt = gst_video_format_from_string (fmt_str);
if (fmt == GST_VIDEO_FORMAT_UNKNOWN)
g_error ("Unknown raw format '%s' in pad template caps", fmt_str);
formats_supported[(guint) fmt] = TRUE;
}
gst_caps_unref (caps);
for (i = 2; i < num_formats; ++i) {
if (!formats_supported[i]) {
const gchar *fmt_str = gst_video_format_to_string ((GstVideoFormat) i);
switch (i) {
case GST_VIDEO_FORMAT_v210:
case GST_VIDEO_FORMAT_v216:
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV16:
case GST_VIDEO_FORMAT_NV21:
case GST_VIDEO_FORMAT_NV24:
case GST_VIDEO_FORMAT_UYVP:
case GST_VIDEO_FORMAT_A420:
case GST_VIDEO_FORMAT_YUV9:
case GST_VIDEO_FORMAT_YVU9:
case GST_VIDEO_FORMAT_IYU1:
case GST_VIDEO_FORMAT_r210:{
static gboolean shown_fixme[100] = { FALSE, };
if (!shown_fixme[i]) {
GST_FIXME ("FIXME: add %s support to videoscale", fmt_str);
shown_fixme[i] = TRUE;
}
break;
}
case GST_VIDEO_FORMAT_BGR16:
case GST_VIDEO_FORMAT_BGR15:
case GST_VIDEO_FORMAT_RGB8P:
case GST_VIDEO_FORMAT_I420_10BE:
case GST_VIDEO_FORMAT_I420_10LE:
case GST_VIDEO_FORMAT_I422_10BE:
case GST_VIDEO_FORMAT_I422_10LE:
case GST_VIDEO_FORMAT_Y444_10BE:
case GST_VIDEO_FORMAT_Y444_10LE:
case GST_VIDEO_FORMAT_GBR:
case GST_VIDEO_FORMAT_GBR_10BE:
case GST_VIDEO_FORMAT_GBR_10LE:
GST_LOG ("Ignoring lack of support for format %s", fmt_str);
break;
default:
g_error ("videoscale doesn't support format '%s'", fmt_str);
break;
}
}
}
g_free (formats_supported);
}
static GstCaps *
gst_smpte_alpha_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * from, GstCaps * filter)
{
GstCaps *result, *tmp_caps, *tmpl_caps = NULL;
gint i, j;
tmp_caps = gst_caps_new_empty ();
for (i = 0; i < gst_caps_get_size (from); i++) {
GstStructure *structure;
const GValue *val, *lval;
GValue list = { 0, };
GValue aval = { 0, };
const gchar *str;
structure = gst_structure_copy (gst_caps_get_structure (from, i));
/* we can transform I420 to AYUV,
* so need to locate and substitute AYUV for the both of them */
val = gst_structure_get_value (structure, "format");
if (val && GST_VALUE_HOLDS_LIST (val)) {
gboolean seen_ayuv = FALSE, seen_i420 = FALSE;
g_value_init (&list, GST_TYPE_LIST);
for (j = 0; j < gst_value_list_get_size (val); j++) {
lval = gst_value_list_get_value (val, j);
if ((str = g_value_get_string (lval))) {
if (strcmp (str, "AYUV") == 0) {
seen_ayuv = TRUE;
} else if (strcmp (str, "I420") == 0) {
seen_i420 = TRUE;
}
}
}
if (seen_ayuv && !seen_i420) {
str = "I420";
} else if (seen_i420 && !seen_ayuv) {
str = "AYUV";
} else
str = NULL;
if (str) {
g_value_copy (val, &list);
g_value_init (&aval, G_TYPE_STRING);
g_value_set_string (&aval, str);
gst_value_list_append_value (&list, &aval);
g_value_reset (&aval);
gst_structure_set_value (structure, "format", &list);
g_value_unset (&list);
}
} else if (val && G_VALUE_HOLDS_STRING (val)) {
if ((str = g_value_get_string (val)) &&
((strcmp (str, "AYUV") == 0) || (strcmp (str, "I420") == 0))) {
g_value_init (&list, GST_TYPE_LIST);
g_value_init (&aval, G_TYPE_STRING);
g_value_set_string (&aval, "AYUV");
gst_value_list_append_value (&list, &aval);
g_value_reset (&aval);
g_value_set_string (&aval, "I420");
gst_value_list_append_value (&list, &aval);
g_value_reset (&aval);
gst_structure_set_value (structure, "format", &list);
g_value_unset (&list);
}
} else {
gst_structure_remove_field (structure, "format");
}
gst_structure_remove_field (structure, "colorimetry");
gst_structure_remove_field (structure, "chroma-site");
gst_caps_append_structure (tmp_caps, structure);
}
/* Get the appropriate template */
if (direction == GST_PAD_SINK) {
tmpl_caps =
gst_static_pad_template_get_caps (&gst_smpte_alpha_src_template);
} else if (direction == GST_PAD_SRC) {
tmpl_caps =
gst_static_pad_template_get_caps (&gst_smpte_alpha_sink_template);
} else {
g_assert_not_reached ();
}
/* Intersect with our template caps */
result = gst_caps_intersect (tmp_caps, tmpl_caps);
gst_caps_unref (tmpl_caps);
gst_caps_unref (tmp_caps);
result = gst_caps_simplify (result);
GST_LOG_OBJECT (trans, "transformed %" GST_PTR_FORMAT " to %" GST_PTR_FORMAT,
from, result);
if (filter) {
GstCaps *intersection;
GST_DEBUG_OBJECT (trans, "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 (trans, "Intersection %" GST_PTR_FORMAT, result);
}
return result;
}
void test_simplify()
{
GstStructure *s1, *s2;
gboolean did_simplify;
GstCaps *caps;
caps = gst_caps_from_string (non_simple_caps_string);
fail_unless (caps != NULL,
"gst_caps_from_string (non_simple_caps_string) failed");
did_simplify = gst_caps_do_simplify (caps);
fail_unless (did_simplify == TRUE,
"gst_caps_do_simplify() should have worked");
/* check simplified caps, should be:
*
* video/x-raw-rgb, bpp=(int)8, depth=(int)8, endianness=(int)1234,
* framerate=(fraction)[ 1/100, 100 ], width=(int)[ 16, 4096 ],
* height=(int)[ 16, 4096 ];
* video/x-raw-yuv, format=(fourcc){ YV12, YUY2, I420 },
* width=(int)[ 16, 4096 ], height=(int)[ 16, 4096 ],
* framerate=(fraction)[ 1/100, 100 ]
*/
fail_unless (gst_caps_get_size (caps) == 2);
s1 = gst_caps_get_structure (caps, 0);
s2 = gst_caps_get_structure (caps, 1);
fail_unless (s1 != NULL);
fail_unless (s2 != NULL);
if (!gst_structure_has_name (s1, "video/x-raw-rgb")) {
GstStructure *tmp;
tmp = s1;
s1 = s2;
s2 = tmp;
}
fail_unless (gst_structure_has_name (s1, "video/x-raw-rgb"));
{
const GValue *framerate_value;
const GValue *width_value;
const GValue *height_value;
const GValue *val_fps;
GValue test_fps = { 0, };
gint bpp, depth, endianness;
gint min_width, max_width;
gint min_height, max_height;
fail_unless (gst_structure_get_int (s1, "bpp", &bpp));
fail_unless (bpp == 8);
fail_unless (gst_structure_get_int (s1, "depth", &depth));
fail_unless (depth == 8);
fail_unless (gst_structure_get_int (s1, "endianness", &endianness));
fail_unless (endianness == G_LITTLE_ENDIAN);
g_value_init (&test_fps, GST_TYPE_FRACTION);
framerate_value = gst_structure_get_value (s1, "framerate");
fail_unless (framerate_value != NULL);
fail_unless (GST_VALUE_HOLDS_FRACTION_RANGE (framerate_value));
val_fps = gst_value_get_fraction_range_min (framerate_value);
gst_value_set_fraction (&test_fps, 1, 100);
fail_unless (gst_value_compare (&test_fps, val_fps) == GST_VALUE_EQUAL);
val_fps = gst_value_get_fraction_range_max (framerate_value);
gst_value_set_fraction (&test_fps, 100, 1);
fail_unless (gst_value_compare (&test_fps, val_fps) == GST_VALUE_EQUAL);
g_value_unset (&test_fps);
width_value = gst_structure_get_value (s1, "width");
fail_unless (width_value != NULL);
fail_unless (GST_VALUE_HOLDS_INT_RANGE (width_value));
min_width = gst_value_get_int_range_min (width_value);
max_width = gst_value_get_int_range_max (width_value);
fail_unless (min_width == 16 && max_width == 4096);
height_value = gst_structure_get_value (s1, "height");
fail_unless (height_value != NULL);
fail_unless (GST_VALUE_HOLDS_INT_RANGE (height_value));
min_height = gst_value_get_int_range_min (height_value);
max_height = gst_value_get_int_range_max (height_value);
fail_unless (min_height == 16 && max_height == 4096);
}
fail_unless (gst_structure_has_name (s2, "video/x-raw-yuv"));
{
const GValue *framerate_value;
const GValue *format_value;
const GValue *width_value;
const GValue *height_value;
const GValue *val_fps;
GValue test_fps = { 0, };
gint min_width, max_width;
gint min_height, max_height;
format_value = gst_structure_get_value (s2, "format");
fail_unless (format_value != NULL);
fail_unless (GST_VALUE_HOLDS_LIST (format_value));
fail_unless (gst_value_list_get_size (format_value) == 3);
fail_unless (check_fourcc_list (format_value) == TRUE);
g_value_init (&test_fps, GST_TYPE_FRACTION);
framerate_value = gst_structure_get_value (s2, "framerate");
fail_unless (framerate_value != NULL);
fail_unless (GST_VALUE_HOLDS_FRACTION_RANGE (framerate_value));
val_fps = gst_value_get_fraction_range_min (framerate_value);
gst_value_set_fraction (&test_fps, 1, 100);
fail_unless (gst_value_compare (&test_fps, val_fps) == GST_VALUE_EQUAL);
val_fps = gst_value_get_fraction_range_max (framerate_value);
gst_value_set_fraction (&test_fps, 100, 1);
fail_unless (gst_value_compare (&test_fps, val_fps) == GST_VALUE_EQUAL);
g_value_unset (&test_fps);
width_value = gst_structure_get_value (s2, "width");
fail_unless (width_value != NULL);
fail_unless (GST_VALUE_HOLDS_INT_RANGE (width_value));
min_width = gst_value_get_int_range_min (width_value);
max_width = gst_value_get_int_range_max (width_value);
fail_unless (min_width == 16 && max_width == 4096);
height_value = gst_structure_get_value (s2, "height");
fail_unless (height_value != NULL);
fail_unless (GST_VALUE_HOLDS_INT_RANGE (height_value));
min_height = gst_value_get_int_range_min (height_value);
max_height = gst_value_get_int_range_max (height_value);
fail_unless (min_height == 16 && max_height == 4096);
}
gst_caps_unref (caps);
}
