Implements #218 red blue swap

When encoding HEVC or H264 video, swap from OpenCV BGR to RGB first and unswap when decoding. This also works for older versions where the swapping was not done by using a flag.

Also allow codecs to be specified manually in a config file.

components/codecs/src/nvpipe_encoder.cpp

@@ -172,7 +172,7 @@ static uint64_t calculateBitrate(definition_t def, bitrate_t rate) {
 	switch (def) {
 	case definition_t::UHD4k	: bitrate = 24.0f; break;
 	case definition_t::HTC_VIVE	: bitrate = 16.0f; break;
-	case definition_t::HD1080	: bitrate = 12.0f; break;
+	case definition_t::HD1080	: bitrate = 16.0f; break;
 	case definition_t::HD720	: bitrate = 8.0f; break;
 	case definition_t::SD576	:
 	case definition_t::SD480	: bitrate = 4.0f; break;
@@ -186,6 +186,9 @@ static uint64_t calculateBitrate(definition_t def, bitrate_t rate) {
 bool NvPipeEncoder::_createEncoder(const cv::Mat &in, definition_t def, bitrate_t rate) {
 	if (_encoderMatch(in, def) && nvenc_) return true;
 
+	uint64_t bitrate = calculateBitrate(def, rate);
+	LOG(INFO) << "Calculated bitrate: " << bitrate;
+
 	if (in.type() == CV_32F) is_float_channel_ = true;
 	else is_float_channel_ = false;
 	current_definition_ = def;
@@ -196,7 +199,7 @@ bool NvPipeEncoder::_createEncoder(const cv::Mat &in, definition_t def, bitrate_
 		(is_float_channel_) ? NVPIPE_UINT16 : NVPIPE_RGBA32,
 		(preference_ == codec_t::Any || preference_ == codec_t::HEVC) ? NVPIPE_HEVC : NVPIPE_H264,
 		(is_float_channel_) ? NVPIPE_LOSSLESS : NVPIPE_LOSSY,
-		16*1000*1000,
+		bitrate,
 		fps,				// FPS
 		ftl::codecs::getWidth(def),	// Output Width
 		ftl::codecs::getHeight(def)	// Output Height