gstreamer管道视频和音频

Question

I am very new to gstreamer and have a pipeline that parses a H.261 encoded video file fine with the following pipeline:

gst-launch-1.0 filesrc location=trailer.mp4 ! 
qtdemux name=demux demux.video_0! queue ! h264parse ! omxh264dec !
nveglglessink -e

Now the video shows fine but this file also has audio encoded with MPEG-4 AAC . Can someone tell me how I may modify the pipeline to also decode the audio stream?

Answer 1

gst-launch-1.0 filesrc location=trailer.mp4 ! qtdemux name=demux demux.video_0 ! queue ! h264parse ! omxh264dec ! nveglglessink demux.audio_0 ! queue ! aacparse ! faad ! autoaudiosink -e

Should do the trick? If you haven't installed the faad decoder plugin you can try avdec_aac if you have installed the libav plugins. But you will need an AAC decoder plugin, thats for sure.