diff options
Diffstat (limited to 'src/plugins/gstreamer/mediacapture/qgstreameraudioencode.cpp')
| -rw-r--r-- | src/plugins/gstreamer/mediacapture/qgstreameraudioencode.cpp | 75 |
1 files changed, 23 insertions, 52 deletions
diff --git a/src/plugins/gstreamer/mediacapture/qgstreameraudioencode.cpp b/src/plugins/gstreamer/mediacapture/qgstreameraudioencode.cpp index abb58c963..40294214a 100644 --- a/src/plugins/gstreamer/mediacapture/qgstreameraudioencode.cpp +++ b/src/plugins/gstreamer/mediacapture/qgstreameraudioencode.cpp @@ -48,52 +48,18 @@ QGstreamerAudioEncode::QGstreamerAudioEncode(QObject *parent) :QAudioEncoderSettingsControl(parent) + , m_codecs(QGstCodecsInfo::AudioEncoder) { - QList<QByteArray> codecCandidates; - - codecCandidates << "audio/mpeg" << "audio/vorbis" << "audio/speex" << "audio/GSM" - << "audio/PCM" << "audio/AMR" << "audio/AMR-WB" << "audio/FLAC"; - - m_elementNames["audio/mpeg"] = "lamemp3enc"; - m_elementNames["audio/AMR"] = "amrnbenc"; - m_elementNames["audio/AMR-WB"] = "amrwbenc"; - - m_elementNames["audio/vorbis"] = "vorbisenc"; - m_elementNames["audio/speex"] = "speexenc"; - m_elementNames["audio/PCM"] = "audioresample"; - m_elementNames["audio/FLAC"] = "flacenc"; - m_elementNames["audio/GSM"] = "gsmenc"; - - m_codecOptions["audio/vorbis"] = QStringList() << "min-bitrate" << "max-bitrate"; - m_codecOptions["audio/mpeg"] = QStringList() << "mode"; - m_codecOptions["audio/speex"] = QStringList() << "mode" << "vbr" << "vad" << "dtx"; - m_codecOptions["audio/GSM"] = QStringList(); - m_codecOptions["audio/PCM"] = QStringList(); - m_codecOptions["audio/AMR"] = QStringList(); - m_codecOptions["audio/AMR-WB"] = QStringList(); - - for (const QByteArray& codecName : qAsConst(codecCandidates)) { - QByteArray elementName = m_elementNames[codecName]; - GstElementFactory *factory = gst_element_factory_find(elementName.constData()); + for (const QString& codecName : m_codecs.supportedCodecs()) { + GstElementFactory *factory = gst_element_factory_find(m_codecs.codecElement(codecName).constData()); if (factory) { - m_codecs.append(codecName); - const gchar *descr = gst_element_factory_get_description(factory); - - if (codecName == QByteArray("audio/PCM")) - m_codecDescriptions.insert(codecName, tr("Raw PCM audio")); - else - m_codecDescriptions.insert(codecName, QString::fromUtf8(descr)); - m_streamTypes.insert(codecName, QGstreamerMediaContainerControl::supportedStreamTypes(factory, GST_PAD_SRC)); gst_object_unref(GST_OBJECT(factory)); } } - - //if (!m_codecs.isEmpty()) - // m_audioSettings.setCodec(m_codecs[0]); } QGstreamerAudioEncode::~QGstreamerAudioEncode() @@ -102,17 +68,17 @@ QGstreamerAudioEncode::~QGstreamerAudioEncode() QStringList QGstreamerAudioEncode::supportedAudioCodecs() const { - return m_codecs; + return m_codecs.supportedCodecs(); } QString QGstreamerAudioEncode::codecDescription(const QString &codecName) const { - return m_codecDescriptions.value(codecName); + return m_codecs.codecDescription(codecName); } QStringList QGstreamerAudioEncode::supportedEncodingOptions(const QString &codec) const { - return m_codecOptions.value(codec); + return m_codecs.codecOptions(codec); } QVariant QGstreamerAudioEncode::encodingOption( @@ -148,24 +114,24 @@ void QGstreamerAudioEncode::setAudioSettings(const QAudioEncoderSettings &settin GstElement *QGstreamerAudioEncode::createEncoder() { QString codec = m_audioSettings.codec(); - GstElement *encoderElement = gst_element_factory_make(m_elementNames.value(codec).constData(), NULL); + GstElement *encoderElement = gst_element_factory_make(m_codecs.codecElement(codec).constData(), NULL); if (!encoderElement) return 0; GstBin * encoderBin = GST_BIN(gst_bin_new("audio-encoder-bin")); - GstElement *capsFilter = gst_element_factory_make("capsfilter", NULL); + GstElement *sinkCapsFilter = gst_element_factory_make("capsfilter", NULL); + GstElement *srcCapsFilter = gst_element_factory_make("capsfilter", NULL); - gst_bin_add(encoderBin, capsFilter); - gst_bin_add(encoderBin, encoderElement); - gst_element_link(capsFilter, encoderElement); + gst_bin_add_many(encoderBin, sinkCapsFilter, encoderElement, srcCapsFilter, NULL); + gst_element_link_many(sinkCapsFilter, encoderElement, srcCapsFilter, NULL); // add ghostpads - GstPad *pad = gst_element_get_static_pad(capsFilter, "sink"); + GstPad *pad = gst_element_get_static_pad(sinkCapsFilter, "sink"); gst_element_add_pad(GST_ELEMENT(encoderBin), gst_ghost_pad_new("sink", pad)); gst_object_unref(GST_OBJECT(pad)); - pad = gst_element_get_static_pad(encoderElement, "src"); + pad = gst_element_get_static_pad(srcCapsFilter, "src"); gst_element_add_pad(GST_ELEMENT(encoderBin), gst_ghost_pad_new("src", pad)); gst_object_unref(GST_OBJECT(pad)); @@ -181,18 +147,23 @@ GstElement *QGstreamerAudioEncode::createEncoder() gst_caps_append_structure(caps,structure); - //qDebug() << "set caps filter:" << gst_caps_to_string(caps); - - g_object_set(G_OBJECT(capsFilter), "caps", caps, NULL); + g_object_set(G_OBJECT(sinkCapsFilter), "caps", caps, NULL); gst_caps_unref(caps); } + // Some encoders support several codecs. Setting a caps filter downstream with the desired + // codec (which is actually a string representation of the caps) will make sure we use the + // correct codec. + GstCaps *caps = gst_caps_from_string(codec.toUtf8().constData()); + g_object_set(G_OBJECT(srcCapsFilter), "caps", caps, NULL); + gst_caps_unref(caps); + if (encoderElement) { if (m_audioSettings.encodingMode() == QMultimedia::ConstantQualityEncoding) { QMultimedia::EncodingQuality qualityValue = m_audioSettings.quality(); - if (codec == QLatin1String("audio/vorbis")) { + if (codec == QLatin1String("audio/x-vorbis")) { double qualityTable[] = { 0.1, //VeryLow 0.3, //Low @@ -211,7 +182,7 @@ GstElement *QGstreamerAudioEncode::createEncoder() 9 //VeryHigh }; g_object_set(G_OBJECT(encoderElement), "quality", quality[qualityValue], NULL); - } else if (codec == QLatin1String("audio/speex")) { + } else if (codec == QLatin1String("audio/x-speex")) { //0-10 range with default 8 double qualityTable[] = { 2, //VeryLow |