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Improved runtime check of hardware encoder

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gstreamer toolkit has_feature now tests possible instanciation
This commit is contained in:
Bruno Herbelin
2021-12-03 23:36:07 +01:00
parent 14bab1e299
commit d359cf33d1
2 changed files with 20 additions and 7 deletions
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12
GstToolkit.cpp
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@@ -171,6 +171,8 @@ bool GstToolkit::enable_feature (string name, bool enable) {
}
gst_registry_add_feature (registry, GST_PLUGIN_FEATURE (factory));
gst_object_unref (factory);
return true;
}
@@ -188,6 +190,12 @@ bool GstToolkit::has_feature (string name)
factory = gst_element_factory_find (name.c_str());
if (!factory) return false;
GstElement *elem = gst_element_factory_create (factory, NULL);
gst_object_unref (factory);
if (!elem) return false;
gst_object_unref (elem);
return true;
}
@@ -205,9 +213,9 @@ string GstToolkit::gst_version()
#if GST_GL_HAVE_PLATFORM_GLX
// https://gstreamer.freedesktop.org/documentation/nvcodec/index.html?gi-language=c#plugin-nvcodec
const char *plugins[11] = { "omxmpeg4videodec", "omxmpeg2dec", "omxh264dec", "vdpaumpegdec",
const char *plugins[11] = { "omxmpeg4videodec", "omxmpeg2dec", "omxh264dec", "vaapidecodebin", "vdpaumpegdec",
"nvh264dec", "nvh265dec", "nvmpeg2videodec",
"nvmpeg4videodec", "nvvp8dec", "nvvp9dec", "vaapidecodebin"
"nvmpeg4videodec", "nvvp8dec", "nvvp9dec"
};
const int N = 11;
#elif GST_GL_HAVE_PLATFORM_CGL

15
Recorder.cpp
View File

@@ -218,10 +218,11 @@ const std::vector<std::string> VideoRecorder::profile_description {
#if GST_GL_HAVE_PLATFORM_GLX
// under GLX (Linux), gstreamer might have nvidia or vaapi encoders
// the hardware encoder will be filled at first instanciation of VideoRecorder
std::vector<std::string> VideoRecorder::hardware_encoder;
std::vector<std::string> VideoRecorder::hardware_profile_description;
// under GLX (Linux), gstreamer might have nvidia encoders
std::vector<std::string> nvidia_encoder = {
"nvh264enc",
"nvh264enc",
@@ -251,7 +252,6 @@ std::vector<std::string> nvidia_profile_description {
"", "", "", ""
};
// under GLX (Linux), gstreamer might have vaapi encoders
std::vector<std::string> vaapi_encoder = {
"vaapih264enc",
"vaapih264enc",
@@ -287,6 +287,7 @@ std::vector<std::string> VideoRecorder::hardware_profile_description {
};
#else
// in other platforms, no hardware encoder
std::vector<std::string> VideoRecorder::hardware_encoder;
std::vector<std::string> VideoRecorder::hardware_profile_description;
#endif
@@ -302,13 +303,17 @@ const gint VideoRecorder::framerate_preset_value[3] = { 15, 25, 30 };
VideoRecorder::VideoRecorder() : FrameGrabber()
{
// first run initialization of hardware encoders in linux
#if GST_GL_HAVE_PLATFORM_GLX
if (hardware_encoder.size() < 1) {
if ( glGetString(GL_VENDOR)[0] == 'N' && glGetString(GL_VENDOR)[1] == 'V' ) {
// test nvidia encoder
if ( GstToolkit::has_feature(nvidia_encoder[0] ) ) {
// consider that if first nvidia encoder is valid, all others should also be available
hardware_encoder.assign(nvidia_encoder.begin(), nvidia_encoder.end());
hardware_profile_description.assign(nvidia_profile_description.begin(), nvidia_profile_description.end());
}
else {
// test vaapi encoder
else if ( GstToolkit::has_feature(vaapi_encoder[0] ) ) {
hardware_encoder.assign(vaapi_encoder.begin(), vaapi_encoder.end());
hardware_profile_description.assign(vaapi_profile_description.begin(), vaapi_profile_description.end());
}
@@ -333,7 +338,7 @@ std::string VideoRecorder::init(GstCaps *caps)
Settings::application.record.profile = H264_STANDARD;
// test for a hardware accelerated encoder
if (Settings::application.render.gpu_decoding && hardware_encoder.size() > 1 &&
if (Settings::application.render.gpu_decoding && (int) hardware_encoder.size() > 0 &&
GstToolkit::has_feature(hardware_encoder[Settings::application.record.profile]) ) {
description += hardware_profile_description[Settings::application.record.profile];