![]() ![]() ![]() If I use -global_quality 10 -c:v h264_qsv -qscale 20 -look_ahead 0 this results in CQP being selected as the rate control method, but again I can't figure out what parameters to pass via the command line to actually modify the quality/bitrate that the encoder chooses to use. If I set -look_ahead 0, the RateControlMethod changes to "ICQ" and the value of "global_quality" adjusts the bitrate (similar to -crf XX in the libx264 encoder) Changing the value of global_quality makes no difference. On my machine, this mode *invariably* results in an exceptionally high bitrate (hundreds of megabits / second!!!). I get LA_ICQ as the rate control method, but I cannot find any parameter that will change the actual rate control/quality that is used. If I use: -global_quality 5 -c:v h264_qsv -look_ahead 1 -look_ahead_depth 100 I'm able to use the minrate/maxrate/b:v parameters to change the final bitrate for modes that take those parameters, but I have not been able to determine which set of command line options actually impact the CQP/LA_ICQ/ICQ rate control selection? Check the log.Īt .parseProfilesFromFile(ProfileManager.java:183)Īt .loadProfiles(ProfileManager.java:157)Īt (MediaServer.I'm attempting to benchmark (or just play around with) some of the different ratecontrol methods in the h264_qsv encoder. : : Profiles XML file is not valid (according to the schema). Message: : Profiles XML file is not valid (according to the schema). ![]() ![]() 04:55:16,682 ERROR An unexpected error occured. 04:55:16,682 ERROR XML Profiles.xsd didn't pass validation, reason: cvc-enumeration-valid: Value 'h264_qsv' is not facet-valid with respect to enumeration ''. config/application-profiles.xml (specific: Ios profile, see below) but Which enables me to transcode on my GPU, which is confirmed working. It took a while, but I have a hardware accelerated ffmpeg intallation using the h264_qsv codec (intel!), ![]()
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