gst-launch-1.0 -v videotestsrc num-buffers=1000 ! x264enc pass=quant ! \ You should ideally never put H264 into an AVIĬontainer (or really anything else, for that matter) - use Matroska or
This example pipeline will encode a test video source to H264 muxed in anĪVI container, while ensuring a sane minimum quantization factor to avoid Example pipeline gst-launch-1.0 -v videotestsrc num-buffers=1000 ! x264enc qp-min=18 ! \Īvimux ! filesink location=videotestsrc.avi Overall encoding quality so may not be appropriate for your use case.
This problem by setting the tune=zerolatency property, but this will affect They canīe fixed by relaxing the default time/size/buffer limits on the queueĮlements in the non-x264 branches, or using a (single) multiqueue elementįor all branches. Non-x264enc streams/branches filling up and blocking upstream. Such problems are caused by one of the queues in the other Is often considerably higher than the default size of a simple queueĮlement. With pipeline stalling in non-trivial pipelines, because the encoder latency Some settings, including the default settings, may lead to quite After this the option-string property isĪpplied, followed by the user-set properties, fast first pass restrictions and If a preset/tuning are specified then these will define the default values and The recommended way to set a profile is to set it in the hardware platforms) a more restricted profile/level Which is fine for most software players and settings,īut in some cases (e.g. Otherwise, if entropy coding is enabled orĪre allowed, then Main Profile is in effect, and otherwise Baseline profileĪpplies. If is enabled, then High profile is used. The H264 profile that is eventually used depends on a few settings. In which case the property controls much of the outcome, in that case is the maximum bitrate. Is to obtained in multiple (2 or 3) pass encoding.Īlternatively, one may choose to perform Constant Quantizer or Quality encoding, This will similarly be the case if this target bitrate In case of Constantīitrate Encoding (actually ABR), the will determine the quality The property controls the type of encoding. This element encodes raw video into H264 compressed data,Īlso otherwise known as MPEG-4 AVC (Advanced Video Codec).
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