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GStreamer backend for audio decoder service.

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Includes basic integration test.

Change-Id: I4c6d1dbefa1f27e107b3556a3d4da58811eeb122
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>
This commit is contained in:
Lev Zelenskiy
2012-02-16 16:54:46 +10:00
committed by Qt by Nokia
parent 4c07c6330d
commit 6468334eb9
8 changed files with 413 additions and 74 deletions
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64
src/gsttools/qgstutils.cpp
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@@ -168,7 +168,7 @@ QSize QGstUtils::capsCorrectedResolution(const GstCaps *caps)
}
/*!
*Returns audio format for caps.
Returns audio format for caps.
If caps doesn't have a valid audio format, an empty QAudioFormat is returned.
*/
@@ -251,4 +251,66 @@ QAudioFormat QGstUtils::audioFormatForCaps(const GstCaps *caps)
return format;
}
/*!
Returns audio format for a buffer.
If the buffer doesn't have a valid audio format, an empty QAudioFormat is returned.
*/
QAudioFormat QGstUtils::audioFormatForBuffer(GstBuffer *buffer)
{
GstCaps* caps = gst_buffer_get_caps(buffer);
if (!caps)
return QAudioFormat();
QAudioFormat format = QGstUtils::audioFormatForCaps(caps);
gst_caps_unref(caps);
return format;
}
/*!
Builds GstCaps for an audio format.
Returns 0 if the audio format is not valid.
Caller must unref GstCaps.
*/
GstCaps *QGstUtils::capsForAudioFormat(QAudioFormat format)
{
GstStructure *structure = 0;
if (format.isValid()) {
if (format.sampleType() == QAudioFormat::SignedInt || format.sampleType() == QAudioFormat::UnSignedInt) {
structure = gst_structure_new("audio/x-raw-int", NULL);
} else if (format.sampleType() == QAudioFormat::Float) {
structure = gst_structure_new("audio/x-raw-float", NULL);
}
}
GstCaps *caps = 0;
if (structure) {
gst_structure_set(structure, "rate", G_TYPE_INT, format.sampleRate(), NULL);
gst_structure_set(structure, "channels", G_TYPE_INT, format.channelCount(), NULL);
gst_structure_set(structure, "width", G_TYPE_INT, format.sampleSize(), NULL);
gst_structure_set(structure, "depth", G_TYPE_INT, format.sampleSize(), NULL);
if (format.byteOrder() == QAudioFormat::LittleEndian)
gst_structure_set(structure, "endianness", G_TYPE_INT, 1234, NULL);
else if (format.byteOrder() == QAudioFormat::BigEndian)
gst_structure_set(structure, "endianness", G_TYPE_INT, 4321, NULL);
if (format.sampleType() == QAudioFormat::SignedInt)
gst_structure_set(structure, "signed", G_TYPE_BOOLEAN, TRUE, NULL);
else if (format.sampleType() == QAudioFormat::UnSignedInt)
gst_structure_set(structure, "signed", G_TYPE_BOOLEAN, FALSE, NULL);
caps = gst_caps_new_empty();
Q_ASSERT(caps);
gst_caps_append_structure(caps, structure);
}
return caps;
}
QT_END_NAMESPACE