GstBusSyncReply
GStreamerReader::Error(GstBus *aBus, GstMessage *aMessage)
{
if (GST_MESSAGE_TYPE(aMessage) == GST_MESSAGE_ERROR) {
Eos();
}
return GST_BUS_PASS;
}
void GStreamerReader::VideoPreroll()
{
/* The first video buffer has reached the video sink. Get width and height */
LOG(PR_LOG_DEBUG, "Video preroll");
GstPad* sinkpad = gst_element_get_static_pad(GST_ELEMENT(mVideoAppSink), "sink");
int PARNumerator, PARDenominator;
#if GST_VERSION_MAJOR >= 1
GstCaps* caps = gst_pad_get_current_caps(sinkpad);
memset (&mVideoInfo, 0, sizeof (mVideoInfo));
gst_video_info_from_caps(&mVideoInfo, caps);
mFormat = mVideoInfo.finfo->format;
mPicture.width = mVideoInfo.width;
mPicture.height = mVideoInfo.height;
PARNumerator = GST_VIDEO_INFO_PAR_N(&mVideoInfo);
PARDenominator = GST_VIDEO_INFO_PAR_D(&mVideoInfo);
#else
GstCaps* caps = gst_pad_get_negotiated_caps(sinkpad);
gst_video_format_parse_caps(caps, &mFormat, &mPicture.width, &mPicture.height);
if (!gst_video_parse_caps_pixel_aspect_ratio(caps, &PARNumerator, &PARDenominator)) {
PARNumerator = 1;
PARDenominator = 1;
}
#endif
NS_ASSERTION(mPicture.width && mPicture.height, "invalid video resolution");
// Calculate display size according to pixel aspect ratio.
nsIntRect pictureRect(0, 0, mPicture.width, mPicture.height);
nsIntSize frameSize = nsIntSize(mPicture.width, mPicture.height);
nsIntSize displaySize = nsIntSize(mPicture.width, mPicture.height);
ScaleDisplayByAspectRatio(displaySize, float(PARNumerator) / float(PARDenominator));
// If video frame size is overflow, stop playing.
if (IsValidVideoRegion(frameSize, pictureRect, displaySize)) {
GstStructure* structure = gst_caps_get_structure(caps, 0);
gst_structure_get_fraction(structure, "framerate", &fpsNum, &fpsDen);
mInfo.mVideo.mDisplay = ThebesIntSize(displaySize.ToIntSize());
mInfo.mVideo.mHasVideo = true;
} else {
LOG(PR_LOG_DEBUG, "invalid video region");
Eos();
}
gst_caps_unref(caps);
gst_object_unref(sinkpad);
}
// ----------------------------------------------------------------------------
// TTunnelParser::NextToken
// Returns the next token type in the input stream. iToken gets the value of
// the (string) token.
// ----------------------------------------------------------------------------
//
TTunnelParser::TTokenType TTunnelParser::NextToken ()
{
TChar ch;
TTokenType val;
SkipSpaceAndMark ();
if (Eos ())
val = ETokenTypeEof;
else
{
ch = Get ();
switch (ch)
{
case '{':
val = ETokenTypeBraceLeft;
break;
case '}':
val = ETokenTypeBraceRight;
break;
case '(':
val = ETokenTypeParLeft;
break;
case ')':
val = ETokenTypeParRight;
break;
case '=':
val = ETokenTypeEqual;
break;
case ',':
val = ETokenTypeComma;
break;
case '#':
val = ETokenTypeComment;
while (!Eos())
{
ch = Get();
if (ch == '\n' || ch == '\r')
break;
}
break;
default:
// Integers, ip addresses, etc. are mapped to strings.
val = ETokenTypeString;
while (!Eos ())
{
ch = Peek ();
if (ch == '{' || ch == '}' ||
ch == '(' || ch == ')' ||
ch == '=' || ch == '#' ||
ch == ',' || ch.IsSpace ())
break;
Inc ();
}
}
}
iToken.Set (MarkedToken ());
SkipSpaceAndMark ();
return val;
}
