static gboolean
start(GstBaseSrc *base)
{
GstTICaptureSrc *src = (GstTICaptureSrc *)base;
GST_LOG("start begin");
src->offset = 0;
// gst_value_set_fraction(&src->framerate,DEFAULT_FRAMERATE_NUM, DEFAULT_FRAMERATE_DEN);
src->cAttrs.numBufs = src->numbufs;
src->cAttrs.captureDevice = src->device;
src->cAttrs.videoInput = dmai_capture_input(src->capture_input);
src->cAttrs.videoStd = dmai_video_std(src->video_standard);
/* if we have a framerate pre-calculate duration */
if (gst_value_get_fraction_numerator(&src->framerate)>0 &&
gst_value_get_fraction_denominator(&src->framerate)>0) {
src->duration = gst_util_uint64_scale_int (GST_SECOND,
gst_value_get_fraction_denominator(&src->framerate),
gst_value_get_fraction_numerator(&src->framerate));
}
else {
src->duration = GST_CLOCK_TIME_NONE;
}
GST_LOG("start end");
return TRUE;
}
static void
compare_shutter_speed (ExifEntry * entry, ExifTagCheckData * testdata)
{
gdouble gst_num, exif_num;
ExifSRational rational;
GValue exif_value = { 0 };
const GValue *gst_value = NULL;
gst_value = gst_tag_list_get_value_index (testdata->taglist,
GST_TAG_CAPTURING_SHUTTER_SPEED, 0);
if (gst_value == NULL) {
GST_WARNING ("Failed to get shutter-speed from taglist");
return;
}
rational = exif_get_srational (entry->data,
exif_data_get_byte_order (entry->parent->parent));
g_value_init (&exif_value, GST_TYPE_FRACTION);
gst_value_set_fraction (&exif_value, rational.numerator,
rational.denominator);
gst_util_fraction_to_double (gst_value_get_fraction_numerator (&exif_value),
gst_value_get_fraction_denominator (&exif_value), &exif_num);
g_value_unset (&exif_value);
gst_util_fraction_to_double (gst_value_get_fraction_numerator (gst_value),
gst_value_get_fraction_denominator (gst_value), &gst_num);
exif_num = pow (2, -exif_num);
GST_LOG ("Shutter speed in gst=%lf and in exif=%lf", gst_num, exif_num);
fail_unless (ABS (gst_num - exif_num) < 0.001);
testdata->result = TRUE;
}
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));
}
}
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 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 gboolean
gst_dx9screencapsrc_set_caps (GstBaseSrc * bsrc, GstCaps * caps)
{
GstDX9ScreenCapSrc *src = GST_DX9SCREENCAPSRC (bsrc);
GstStructure *structure;
const GValue *framerate;
structure = gst_caps_get_structure (caps, 0);
src->src_rect = src->screen_rect;
if (src->capture_w && src->capture_h) {
src->src_rect.left += src->capture_x;
src->src_rect.top += src->capture_y;
src->src_rect.right = src->src_rect.left + src->capture_w;
src->src_rect.bottom = src->src_rect.top + src->capture_h;
}
framerate = gst_structure_get_value (structure, "framerate");
if (framerate) {
src->rate_numerator = gst_value_get_fraction_numerator (framerate);
src->rate_denominator = gst_value_get_fraction_denominator (framerate);
}
GST_DEBUG_OBJECT (src, "size %dx%d, %d/%d fps",
(gint) (src->src_rect.right - src->src_rect.left),
(gint) (src->src_rect.bottom - src->src_rect.top),
src->rate_numerator, src->rate_denominator);
return TRUE;
}
static gboolean
gst_gdiscreencapsrc_set_caps (GstBaseSrc * bsrc, GstCaps * caps)
{
GstGDIScreenCapSrc *src = GST_GDISCREENCAPSRC (bsrc);
HWND capture;
HDC device;
GstStructure *structure;
const GValue *framerate;
structure = gst_caps_get_structure (caps, 0);
src->src_rect = src->screen_rect;
if (src->capture_w && src->capture_h) {
src->src_rect.left += src->capture_x;
src->src_rect.top += src->capture_y;
src->src_rect.right = src->src_rect.left + src->capture_w;
src->src_rect.bottom = src->src_rect.top + src->capture_h;
}
framerate = gst_structure_get_value (structure, "framerate");
if (framerate) {
src->rate_numerator = gst_value_get_fraction_numerator (framerate);
src->rate_denominator = gst_value_get_fraction_denominator (framerate);
}
src->info.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
src->info.bmiHeader.biWidth = src->src_rect.right - src->src_rect.left;
src->info.bmiHeader.biHeight = src->src_rect.top - src->src_rect.bottom;
src->info.bmiHeader.biPlanes = 1;
src->info.bmiHeader.biBitCount = 24;
src->info.bmiHeader.biCompression = BI_RGB;
src->info.bmiHeader.biSizeImage = 0;
src->info.bmiHeader.biXPelsPerMeter = 0;
src->info.bmiHeader.biYPelsPerMeter = 0;
src->info.bmiHeader.biClrUsed = 0;
src->info.bmiHeader.biClrImportant = 0;
/* Cleanup first */
if (src->hBitmap != INVALID_HANDLE_VALUE)
DeleteObject (src->hBitmap);
if (src->memDC != INVALID_HANDLE_VALUE)
DeleteDC (src->memDC);
/* Allocate */
capture = GetDesktopWindow ();
device = GetDC (capture);
src->hBitmap = CreateDIBSection (device, &(src->info), DIB_RGB_COLORS,
(void **) &(src->dibMem), 0, 0);
src->memDC = CreateCompatibleDC (device);
SelectObject (src->memDC, src->hBitmap);
ReleaseDC (capture, device);
GST_DEBUG_OBJECT (src, "size %dx%d, %d/%d fps",
(gint) src->info.bmiHeader.biWidth,
(gint) (-src->info.bmiHeader.biHeight),
src->rate_numerator, src->rate_denominator);
return TRUE;
}
static void
compare_aperture_value (ExifEntry * entry, ExifTagCheckData * testdata)
{
gdouble gst_value, exif_value;
ExifSRational rational;
GValue value = { 0 };
if (!gst_tag_list_get_double_index (testdata->taglist,
GST_TAG_CAPTURING_FOCAL_RATIO, 0, &gst_value)) {
GST_WARNING ("Failed to get focal ratio from taglist");
return;
}
rational = exif_get_srational (entry->data,
exif_data_get_byte_order (entry->parent->parent));
g_value_init (&value, GST_TYPE_FRACTION);
gst_value_set_fraction (&value, rational.numerator, rational.denominator);
gst_util_fraction_to_double (gst_value_get_fraction_numerator (&value),
gst_value_get_fraction_denominator (&value), &exif_value);
g_value_unset (&value);
exif_value = pow (2, exif_value / 2);
GST_LOG ("Aperture value in gst=%lf and in exif=%lf", gst_value, exif_value);
fail_unless (ABS (gst_value - exif_value) < 0.001);
testdata->result = TRUE;
}
static void
gst_aspect_ratio_crop_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAspectRatioCrop *aspect_ratio_crop;
gboolean recheck = FALSE;
aspect_ratio_crop = GST_ASPECT_RATIO_CROP (object);
GST_OBJECT_LOCK (aspect_ratio_crop);
switch (prop_id) {
case ARG_ASPECT_RATIO_CROP:
if (GST_VALUE_HOLDS_FRACTION (value)) {
aspect_ratio_crop->ar_num = gst_value_get_fraction_numerator (value);
aspect_ratio_crop->ar_denom =
gst_value_get_fraction_denominator (value);
recheck = (GST_PAD_CAPS (aspect_ratio_crop->sink) != NULL);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (aspect_ratio_crop);
if (recheck) {
gst_aspect_ratio_crop_set_caps (aspect_ratio_crop->sink,
GST_PAD_CAPS (aspect_ratio_crop->sink));
}
}
static gboolean
gst_dc1394_parse_caps (const GstCaps * caps,
gint * width,
gint * height,
gint * rate_numerator, gint * rate_denominator, gint * vmode, gint * bpp)
{
const GstStructure *structure;
GstPadLinkReturn ret;
const GValue *framerate;
if (gst_caps_get_size (caps) < 1)
return FALSE;
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "width", width);
ret &= gst_structure_get_int (structure, "height", height);
framerate = gst_structure_get_value (structure, "framerate");
ret &= gst_structure_get_int (structure, "vmode", vmode);
ret &= gst_structure_get_int (structure, "bpp", bpp);
if (framerate) {
*rate_numerator = gst_value_get_fraction_numerator (framerate);
*rate_denominator = gst_value_get_fraction_denominator (framerate);
} else {
ret = FALSE;
}
return ret;
}
static void addTagToMap(const GstTagList *list,
const gchar *tag,
gpointer user_data)
{
QMap<QByteArray, QVariant> *map = reinterpret_cast<QMap<QByteArray, QVariant>* >(user_data);
GValue val;
val.g_type = 0;
gst_tag_list_copy_value(&val,list,tag);
switch( G_VALUE_TYPE(&val) ) {
case G_TYPE_STRING:
{
const gchar *str_value = g_value_get_string(&val);
map->insert(QByteArray(tag), QString::fromUtf8(str_value));
break;
}
case G_TYPE_INT:
map->insert(QByteArray(tag), g_value_get_int(&val));
break;
case G_TYPE_UINT:
map->insert(QByteArray(tag), g_value_get_uint(&val));
break;
case G_TYPE_LONG:
map->insert(QByteArray(tag), qint64(g_value_get_long(&val)));
break;
case G_TYPE_BOOLEAN:
map->insert(QByteArray(tag), g_value_get_boolean(&val));
break;
case G_TYPE_CHAR:
map->insert(QByteArray(tag), g_value_get_char(&val));
break;
case G_TYPE_DOUBLE:
map->insert(QByteArray(tag), g_value_get_double(&val));
break;
default:
// GST_TYPE_DATE is a function, not a constant, so pull it out of the switch
if (G_VALUE_TYPE(&val) == GST_TYPE_DATE) {
const GDate *date = gst_value_get_date(&val);
if (g_date_valid(date)) {
int year = g_date_get_year(date);
int month = g_date_get_month(date);
int day = g_date_get_day(date);
map->insert(QByteArray(tag), QDate(year,month,day));
if (!map->contains("year"))
map->insert("year", year);
}
} else if (G_VALUE_TYPE(&val) == GST_TYPE_FRACTION) {
int nom = gst_value_get_fraction_numerator(&val);
int denom = gst_value_get_fraction_denominator(&val);
if (denom > 0) {
map->insert(QByteArray(tag), double(nom)/denom);
}
}
break;
}
g_value_unset(&val);
}
static VALUE
fraction_gvalue2rvalue(const GValue *value)
{
return rb_funcall(Qnil, rb_intern("Rational"), 2,
INT2NUM(gst_value_get_fraction_numerator(value)),
INT2NUM(gst_value_get_fraction_denominator(value)));
}
bool ofGstVideoPlayer::allocate(int bpp){
if(bIsAllocated) return true;
guint64 durationNanos = videoUtils.getDurationNanos();
nFrames = 0;
if(GstPad* pad = gst_element_get_static_pad(videoUtils.getSink(), "sink")){
#if GST_VERSION_MAJOR==0
int width,height;
if(gst_video_get_size(GST_PAD(pad), &width, &height)){
if(!videoUtils.allocate(width,height,bpp)) return false;
}else{
ofLogError("ofGstVideoPlayer") << "allocate(): couldn't query width and height";
return false;
}
const GValue *framerate = gst_video_frame_rate(pad);
fps_n=0;
fps_d=0;
if(framerate && GST_VALUE_HOLDS_FRACTION (framerate)){
fps_n = gst_value_get_fraction_numerator (framerate);
fps_d = gst_value_get_fraction_denominator (framerate);
nFrames = (float)(durationNanos / (float)GST_SECOND) * (float)fps_n/(float)fps_d;
ofLogVerbose("ofGstVideoPlayer") << "allocate(): framerate: " << fps_n << "/" << fps_d;
}else{
ofLogWarning("ofGstVideoPlayer") << "allocate(): cannot get framerate, frame seek won't work";
}
bIsAllocated = true;
#else
if(GstCaps *caps = gst_pad_get_current_caps (GST_PAD (pad))){
GstVideoInfo info;
gst_video_info_init (&info);
if (gst_video_info_from_caps (&info, caps)){
if(!videoUtils.allocate(info.width,info.height,bpp)) return false;
}else{
ofLogError("ofGstVideoPlayer") << "allocate(): couldn't query width and height";
return false;
}
fps_n = info.fps_n;
fps_d = info.fps_d;
nFrames = (float)(durationNanos / (float)GST_SECOND) * (float)fps_n/(float)fps_d;
gst_caps_unref(caps);
bIsAllocated = true;
}else{
ofLogError("ofGstVideoPlayer") << "allocate(): cannot get pipeline caps";
bIsAllocated = false;
}
#endif
gst_object_unref(GST_OBJECT(pad));
}else{
ofLogError("ofGstVideoPlayer") << "allocate(): cannot get sink pad";
bIsAllocated = false;
}
return bIsAllocated;
}
static gboolean
gst_smokeenc_setcaps (GstPad * pad, GstCaps * caps)
{
GstSmokeEnc *smokeenc;
GstStructure *structure;
const GValue *framerate;
gboolean ret;
GstCaps *srccaps;
smokeenc = GST_SMOKEENC (gst_pad_get_parent (pad));
structure = gst_caps_get_structure (caps, 0);
framerate = gst_structure_get_value (structure, "framerate");
if (framerate) {
smokeenc->fps_num = gst_value_get_fraction_numerator (framerate);
smokeenc->fps_denom = gst_value_get_fraction_denominator (framerate);
} else {
smokeenc->fps_num = 0;
smokeenc->fps_denom = 1;
}
gst_structure_get_int (structure, "width", &smokeenc->width);
gst_structure_get_int (structure, "height", &smokeenc->height);
if ((smokeenc->width & 0x0f) != 0 || (smokeenc->height & 0x0f) != 0)
goto width_or_height_notx16;
if (!gst_smokeenc_resync (smokeenc))
goto init_failed;
srccaps = gst_caps_new_simple ("video/x-smoke",
"width", G_TYPE_INT, smokeenc->width,
"height", G_TYPE_INT, smokeenc->height,
"framerate", GST_TYPE_FRACTION, smokeenc->fps_num, smokeenc->fps_denom,
NULL);
ret = gst_pad_set_caps (smokeenc->srcpad, srccaps);
gst_caps_unref (srccaps);
gst_object_unref (smokeenc);
return ret;
width_or_height_notx16:
{
GST_WARNING_OBJECT (smokeenc, "width and height must be multiples of 16"
", %dx%d not allowed", smokeenc->width, smokeenc->height);
gst_object_unref (smokeenc);
return FALSE;
}
init_failed:
{
GST_WARNING_OBJECT (smokeenc, "could not init decoder");
gst_object_unref (smokeenc);
return FALSE;
}
}
static void
gst_vdp_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
VdpSink *vdp_sink;
g_return_if_fail (GST_IS_VDP_SINK (object));
vdp_sink = GST_VDP_SINK (object);
switch (prop_id) {
case PROP_DISPLAY:
vdp_sink->display_name = g_strdup (g_value_get_string (value));
break;
case PROP_SYNCHRONOUS:
vdp_sink->synchronous = g_value_get_boolean (value);
if (vdp_sink->device) {
GST_DEBUG_OBJECT (vdp_sink, "XSynchronize called with %s",
vdp_sink->synchronous ? "TRUE" : "FALSE");
g_mutex_lock (vdp_sink->x_lock);
XSynchronize (vdp_sink->device->display, vdp_sink->synchronous);
g_mutex_unlock (vdp_sink->x_lock);
}
break;
case PROP_PIXEL_ASPECT_RATIO:
{
GValue *tmp;
tmp = g_new0 (GValue, 1);
g_value_init (tmp, GST_TYPE_FRACTION);
if (!g_value_transform (value, tmp)) {
GST_WARNING_OBJECT (vdp_sink,
"Could not transform string to aspect ratio");
g_free (tmp);
} else {
GST_DEBUG_OBJECT (vdp_sink, "set PAR to %d/%d",
gst_value_get_fraction_numerator (tmp),
gst_value_get_fraction_denominator (tmp));
g_free (vdp_sink->par);
vdp_sink->par = tmp;
}
}
break;
case PROP_HANDLE_EVENTS:
gst_vdp_sink_set_event_handling (GST_X_OVERLAY (vdp_sink),
g_value_get_boolean (value));
break;
case PROP_HANDLE_EXPOSE:
vdp_sink->handle_expose = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
caps_set(GstCaps *caps, signal_user_data_t *ud)
{
GstStructure *ss;
ss = gst_caps_get_structure(caps, 0);
if (ss)
{
gint fps_n, fps_d, width, height;
guint num, den, par_n, par_d;
gint disp_par_n, disp_par_d;
const GValue *par;
gst_structure_get_fraction(ss, "framerate", &fps_n, &fps_d);
gst_structure_get_int(ss, "width", &width);
gst_structure_get_int(ss, "height", &height);
par = gst_structure_get_value(ss, "pixel-aspect-ratio");
par_n = gst_value_get_fraction_numerator(par);
par_d = gst_value_get_fraction_denominator(par);
ghb_screen_par(ud, &disp_par_n, &disp_par_d);
gst_video_calculate_display_ratio(
&num, &den, width, height, par_n, par_d, disp_par_n, disp_par_d);
if (par_n > par_d)
width = gst_util_uint64_scale_int(height, num, den);
else
height = gst_util_uint64_scale_int(width, den, num);
if (ghb_dict_get_bool(ud->prefs, "reduce_hd_preview"))
{
GdkScreen *ss;
gint s_w, s_h;
ss = gdk_screen_get_default();
s_w = gdk_screen_get_width(ss);
s_h = gdk_screen_get_height(ss);
if (width > s_w * 80 / 100)
{
width = s_w * 80 / 100;
height = gst_util_uint64_scale_int(width, den, num);
}
if (height > s_h * 80 / 100)
{
height = s_h * 80 / 100;
width = gst_util_uint64_scale_int(height, num, den);
}
}
if (width != ud->preview->width || height != ud->preview->height)
{
preview_set_size(ud, width, height);
}
}
}
static gboolean
gst_dvdec_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstDVDec *dvdec;
GstStructure *s;
const GValue *par = NULL, *rate = NULL;
dvdec = GST_DVDEC (gst_pad_get_parent (pad));
/* first parse the caps */
s = gst_caps_get_structure (caps, 0);
/* we allow framerate and PAR to be overwritten. framerate is mandatory. */
if (!(rate = gst_structure_get_value (s, "framerate")))
goto no_framerate;
par = gst_structure_get_value (s, "pixel-aspect-ratio");
if (par) {
dvdec->par_x = gst_value_get_fraction_numerator (par);
dvdec->par_y = gst_value_get_fraction_denominator (par);
dvdec->need_par = FALSE;
} else {
dvdec->par_x = 0;
dvdec->par_y = 0;
dvdec->need_par = TRUE;
}
dvdec->framerate_numerator = gst_value_get_fraction_numerator (rate);
dvdec->framerate_denominator = gst_value_get_fraction_denominator (rate);
dvdec->sink_negotiated = TRUE;
dvdec->src_negotiated = FALSE;
gst_object_unref (dvdec);
return TRUE;
/* ERRORS */
no_framerate:
{
GST_DEBUG_OBJECT (dvdec, "no framerate specified in caps");
gst_object_unref (dvdec);
return FALSE;
}
}
EXPORT_C
#endif
gboolean
gst_video_calculate_display_ratio (guint * dar_n, guint * dar_d,
guint video_width, guint video_height,
guint video_par_n, guint video_par_d,
guint display_par_n, guint display_par_d)
{
gint num, den;
GValue display_ratio = { 0, };
GValue tmp = { 0, };
GValue tmp2 = { 0, };
g_return_val_if_fail (dar_n != NULL, FALSE);
g_return_val_if_fail (dar_d != NULL, FALSE);
g_value_init (&display_ratio, GST_TYPE_FRACTION);
g_value_init (&tmp, GST_TYPE_FRACTION);
g_value_init (&tmp2, GST_TYPE_FRACTION);
/* Calculate (video_width * video_par_n * display_par_d) /
* (video_height * video_par_d * display_par_n) */
gst_value_set_fraction (&display_ratio, video_width, video_height);
gst_value_set_fraction (&tmp, video_par_n, video_par_d);
if (!gst_value_fraction_multiply (&tmp2, &display_ratio, &tmp))
goto error_overflow;
gst_value_set_fraction (&tmp, display_par_d, display_par_n);
if (!gst_value_fraction_multiply (&display_ratio, &tmp2, &tmp))
goto error_overflow;
num = gst_value_get_fraction_numerator (&display_ratio);
den = gst_value_get_fraction_denominator (&display_ratio);
g_value_unset (&display_ratio);
g_value_unset (&tmp);
g_value_unset (&tmp2);
g_return_val_if_fail (num > 0, FALSE);
g_return_val_if_fail (den > 0, FALSE);
*dar_n = num;
*dar_d = den;
return TRUE;
error_overflow:
g_value_unset (&display_ratio);
g_value_unset (&tmp);
g_value_unset (&tmp2);
return FALSE;
}
static gboolean
gst_video_test_src_parse_caps (const GstCaps * caps,
gint * width, gint * height, gint * fps_n, gint * fps_d,
GstVideoColorimetry * colorimetry, gint * x_inv, gint * y_inv)
{
const GstStructure *structure;
GstPadLinkReturn ret;
const GValue *framerate;
const gchar *str;
GST_DEBUG ("parsing caps");
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "width", width);
ret &= gst_structure_get_int (structure, "height", height);
framerate = gst_structure_get_value (structure, "framerate");
if (framerate) {
*fps_n = gst_value_get_fraction_numerator (framerate);
*fps_d = gst_value_get_fraction_denominator (framerate);
} else
goto no_framerate;
if ((str = gst_structure_get_string (structure, "colorimetry")))
gst_video_colorimetry_from_string (colorimetry, str);
if ((str = gst_structure_get_string (structure, "format"))) {
if (g_str_equal (str, "bggr")) {
*x_inv = *y_inv = 0;
} else if (g_str_equal (str, "rggb")) {
*x_inv = *y_inv = 1;
} else if (g_str_equal (str, "grbg")) {
*x_inv = 0;
*y_inv = 1;
} else if (g_str_equal (str, "grbg")) {
*x_inv = 1;
*y_inv = 0;
} else
goto invalid_format;
}
return ret;
/* ERRORS */
no_framerate:
{
GST_DEBUG ("videotestsrc no framerate given");
return FALSE;
}
invalid_format:
{
GST_DEBUG ("videotestsrc invalid bayer format given");
return FALSE;
}
}
static gboolean
sink_setcaps (GstPad *pad,
GstCaps *caps)
{
GstStructure *structure;
GstOmxBaseFilter21 *self;
GOmxCore *gomx;
GstVideoFormat format;
int sink_number;
self = GST_OMX_BASE_FILTER21 (GST_PAD_PARENT (pad));
if(strcmp(GST_PAD_NAME(pad), "sink_00") == 0){
sink_number=0;
}
else if(strcmp(GST_PAD_NAME(pad), "sink_01") == 0){
sink_number=1;
}
gomx = (GOmxCore *) self->gomx;
GST_INFO_OBJECT (self, "setcaps (sink): %d", sink_number);
GST_INFO_OBJECT (self, "setcaps (sink): %" GST_PTR_FORMAT, caps);
g_return_val_if_fail (caps, FALSE);
g_return_val_if_fail (gst_caps_is_fixed (caps), FALSE);
structure = gst_caps_get_structure (caps, 0);
g_return_val_if_fail (structure, FALSE);
if (!gst_video_format_parse_caps_strided (caps,
&format, &self->in_width[sink_number], &self->in_height[sink_number], &self->in_stride[sink_number]))
{
GST_WARNING_OBJECT (self, "width and/or height is not set in caps");
return FALSE;
}
if (!self->in_stride[sink_number])
{
self->in_stride[sink_number] = gstomx_calculate_stride (self->in_width[sink_number], format);
}
{
/* Output framerate correspond to the minimum input framerate */
const GValue *sink_framerate = NULL;
sink_framerate = gst_structure_get_value (structure, "framerate");
if( GST_VALUE_HOLDS_FRACTION(sink_framerate) )
{
if( self->out_framerate == NULL || gst_value_compare(sink_framerate, self->out_framerate) == GST_VALUE_LESS_THAN )
{
self->out_framerate = sink_framerate;
self->duration = gst_util_uint64_scale_int(GST_SECOND, gst_value_get_fraction_denominator(sink_framerate),
gst_value_get_fraction_numerator(sink_framerate));
}
}
}
return gst_pad_set_caps (pad, caps);
}
static void
gst_glimage_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstGLImageSink *glimage_sink;
g_return_if_fail (GST_IS_GLIMAGE_SINK (object));
glimage_sink = GST_GLIMAGE_SINK (object);
switch (prop_id) {
case ARG_DISPLAY:
{
g_free (glimage_sink->display_name);
glimage_sink->display_name = g_strdup (g_value_get_string (value));
break;
}
case PROP_CLIENT_RESHAPE_CALLBACK:
{
glimage_sink->clientReshapeCallback = g_value_get_pointer (value);
break;
}
case PROP_CLIENT_DRAW_CALLBACK:
{
glimage_sink->clientDrawCallback = g_value_get_pointer (value);
break;
}
case PROP_CLIENT_DATA:
{
glimage_sink->client_data = g_value_get_pointer (value);
break;
}
case PROP_FORCE_ASPECT_RATIO:
{
glimage_sink->keep_aspect_ratio = g_value_get_boolean (value);
break;
}
case PROP_PIXEL_ASPECT_RATIO:
{
glimage_sink->par_n = gst_value_get_fraction_numerator (value);
glimage_sink->par_d = gst_value_get_fraction_denominator (value);
break;
}
case PROP_OTHER_CONTEXT:
{
if (glimage_sink->other_context)
gst_object_unref (glimage_sink->other_context);
glimage_sink->other_context = g_value_dup_object (value);
break;
}
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
caps_set(GstCaps *caps, signal_user_data_t *ud)
{
GstStructure *ss;
ss = gst_caps_get_structure(caps, 0);
if (ss)
{
gint fps_n, fps_d, width, height;
guint num, den, par_n, par_d;
gint disp_par_n, disp_par_d;
const GValue *par;
gst_structure_get_fraction(ss, "framerate", &fps_n, &fps_d);
gst_structure_get_int(ss, "width", &width);
gst_structure_get_int(ss, "height", &height);
par = gst_structure_get_value(ss, "pixel-aspect-ratio");
par_n = gst_value_get_fraction_numerator(par);
par_d = gst_value_get_fraction_denominator(par);
ghb_screen_par(ud, &disp_par_n, &disp_par_d);
gst_video_calculate_display_ratio(
&num, &den, width, height, par_n, par_d, disp_par_n, disp_par_d);
if (par_n > par_d)
width = gst_util_uint64_scale_int(height, num, den);
else
height = gst_util_uint64_scale_int(width, den, num);
preview_set_size(ud, width, height);
if (ghb_dict_get_bool(ud->prefs, "reduce_hd_preview"))
{
GdkWindow *window;
gint s_w, s_h;
window = gtk_widget_get_window(
GHB_WIDGET(ud->builder, "preview_window"));
ghb_monitor_get_size(window, &s_w, &s_h);
if (s_w > 0 && s_h > 0)
{
if (width > s_w * 80 / 100)
{
width = s_w * 80 / 100;
height = gst_util_uint64_scale_int(width, den, num);
}
if (height > s_h * 80 / 100)
{
height = s_h * 80 / 100;
width = gst_util_uint64_scale_int(height, num, den);
}
}
}
}
}
static void
_get_fraction_range (GstStructure * s, const gchar * field, gint * fps_n_min,
gint * fps_d_min, gint * fps_n_max, gint * fps_d_max)
{
const GValue *value;
const GValue *min_v, *max_v;
value = gst_structure_get_value (s, field);
fail_unless (value != NULL);
fail_unless (GST_VALUE_HOLDS_FRACTION_RANGE (value));
min_v = gst_value_get_fraction_range_min (value);
fail_unless (GST_VALUE_HOLDS_FRACTION (min_v));
*fps_n_min = gst_value_get_fraction_numerator (min_v);
*fps_d_min = gst_value_get_fraction_denominator (min_v);
max_v = gst_value_get_fraction_range_max (value);
fail_unless (GST_VALUE_HOLDS_FRACTION (max_v));
*fps_n_max = gst_value_get_fraction_numerator (max_v);
*fps_d_max = gst_value_get_fraction_denominator (max_v);
}
static void
gst_video_parse_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVideoParse *vp = GST_VIDEO_PARSE (object);
g_return_if_fail (!gst_raw_parse_is_negotiated (GST_RAW_PARSE (vp)));
switch (prop_id) {
case PROP_FORMAT:
vp->format = g_value_get_enum (value);
break;
case PROP_WIDTH:
vp->width = g_value_get_int (value);
break;
case PROP_HEIGHT:
vp->height = g_value_get_int (value);
break;
case PROP_FRAMERATE:
gst_raw_parse_set_fps (GST_RAW_PARSE (vp),
gst_value_get_fraction_numerator (value),
gst_value_get_fraction_denominator (value));
break;
case PROP_PAR:
vp->par_n = gst_value_get_fraction_numerator (value);
vp->par_d = gst_value_get_fraction_denominator (value);
break;
case PROP_INTERLACED:
vp->interlaced = g_value_get_boolean (value);
break;
case PROP_TOP_FIELD_FIRST:
vp->top_field_first = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
gst_video_parse_update_frame_size (vp);
}
static void
lgm_device_add_format_from_fps_val (GHashTable * table, int width, int height,
const GValue * val)
{
gint fps_n, fps_d;
fps_n = gst_value_get_fraction_numerator (val);
fps_d = gst_value_get_fraction_denominator (val);
if (fps_n == 0) {
fps_d = 0;
}
lgm_device_add_format (table, width, height, fps_n, fps_d);
}
void GStreamerWrapper::retrieveVideoInfo()
{
////////////////////////////////////////////////////////////////////////// Media Duration
// Nanoseconds
GstFormat gstFormat = GST_FORMAT_TIME;
gst_element_query_duration( GST_ELEMENT( m_GstPipeline ), &gstFormat, &m_iDurationInNs );
// Milliseconds
m_dDurationInMs = GST_TIME_AS_MSECONDS( m_iDurationInNs );
////////////////////////////////////////////////////////////////////////// Stream Info
// Number of Video Streams
g_object_get( m_GstPipeline, "n-video", &m_iNumVideoStreams, NULL );
// Number of Audio Streams
g_object_get( m_GstPipeline, "n-audio", &m_iNumAudioStreams, NULL );
// Set Content Type according to the number of available Video and Audio streams
if ( m_iNumVideoStreams > 0 && m_iNumAudioStreams > 0 )
m_ContentType = VIDEO_AND_AUDIO;
else if ( m_iNumVideoStreams > 0 )
m_ContentType = VIDEO;
else if ( m_iNumAudioStreams > 0 )
m_ContentType = AUDIO;
////////////////////////////////////////////////////////////////////////// Video Data
if ( m_iNumVideoStreams > 0 )
{
GstPad* gstPad = gst_element_get_static_pad( m_GstVideoSink, "sink" );
if ( gstPad )
{
// Video Size
gst_video_get_size( GST_PAD( gstPad ), &m_iWidth, &m_iHeight );
// Frame Rate
const GValue* framerate = gst_video_frame_rate( gstPad );
int iFpsNumerator = gst_value_get_fraction_numerator( framerate );
int iFpsDenominator = gst_value_get_fraction_denominator( framerate );
// Number of frames
m_iNumberOfFrames = (float)( m_iDurationInNs / GST_SECOND ) * (float)iFpsNumerator / (float)iFpsDenominator;
// FPS
m_fFps = (float)iFpsNumerator / (float)iFpsDenominator;
gst_object_unref( gstPad );
}
}
}
void
ghb_screen_par(signal_user_data_t *ud, gint *par_n, gint *par_d)
{
#if defined(_ENABLE_GST)
GValue disp_par = {0,};
GstElement *xover;
GObjectClass *klass;
GParamSpec *pspec;
if (!ud->preview->live_enabled)
goto fail;
g_value_init(&disp_par, GST_TYPE_FRACTION);
gst_value_set_fraction(&disp_par, 1, 1);
g_object_get(ud->preview->play, "video-sink", &xover, NULL);
if (xover == NULL)
goto fail;
klass = G_OBJECT_GET_CLASS(xover);
if (klass == NULL)
goto fail;
pspec = g_object_class_find_property(klass, "pixel-aspect_ratio");
if (pspec)
{
GValue par_prop = {0,};
g_value_init(&par_prop, pspec->value_type);
g_object_get_property(G_OBJECT(xover), "pixel-aspect-ratio",
&par_prop);
if (!g_value_transform(&par_prop, &disp_par))
{
g_warning("transform failed");
gst_value_set_fraction(&disp_par, 1, 1);
}
g_value_unset(&par_prop);
}
*par_n = gst_value_get_fraction_numerator(&disp_par);
*par_d = gst_value_get_fraction_denominator(&disp_par);
g_value_unset(&disp_par);
return;
fail:
*par_n = 1;
*par_d = 1;
#else
*par_n = 1;
*par_d = 1;
#endif
}
static PyObject *
gi_gst_fraction_from_value (const GValue * value)
{
PyObject *fraction_type, *args, *fraction;
gint numerator, denominator;
numerator = gst_value_get_fraction_numerator (value);
denominator = gst_value_get_fraction_denominator (value);
fraction_type = gi_gst_get_type ("Fraction");
args = Py_BuildValue ("(ii)", numerator, denominator);
fraction = PyObject_Call (fraction_type, args, NULL);
Py_DECREF (args);
return fraction;
}
static gboolean
src_setcaps (GstPad *pad, GstCaps *caps)
{
GstOmxBaseFilter21 *self;
GstVideoFormat format;
GstStructure *structure;
self = GST_OMX_BASE_FILTER21 (GST_PAD_PARENT (pad));
structure = gst_caps_get_structure (caps, 0);
GST_INFO_OBJECT (self, "setcaps (src): %" GST_PTR_FORMAT, caps);
g_return_val_if_fail (caps, FALSE);
g_return_val_if_fail (gst_caps_is_fixed (caps), FALSE);
if (!gst_video_format_parse_caps_strided (caps, &format, &self->out_width, &self->out_height, &self->out_stride))
{
GST_WARNING_OBJECT (self, "width and/or height is not set in caps");
return FALSE;
}
if (!self->out_stride)
{
self->out_stride = gstomx_calculate_stride (self->out_width, format);
}
/* Set output framerate already calculated in sink_setcaps */
if( self->out_framerate == NULL ) {
GST_WARNING_OBJECT (self, "unable to calculate output framerate");
return FALSE;
}
gint out_framerate_num = gst_value_get_fraction_numerator(self->out_framerate);
gint out_framerate_denom = gst_value_get_fraction_denominator(self->out_framerate);
gst_structure_set(structure, "framerate", GST_TYPE_FRACTION, out_framerate_num, out_framerate_denom, NULL);
GST_INFO_OBJECT(self, "output framerate is: %d/%d", out_framerate_num, out_framerate_denom);
/* save the src caps later needed by omx transport buffer */
if (self->out_port->caps)
gst_caps_unref (self->out_port->caps);
self->out_port->caps = gst_caps_copy (caps);
return TRUE;
}
