#Using xvid4psp to demux mp4 file how to#
#Using xvid4psp to demux mp4 file code#

I have tried tsmuxer but keep showing the error can't create the temporary meta file. | ,Įlif message.type = 've got a mkv file of h.264 and when i use mkvextract gui it's only extracting only 20 MB of the whole video stream which is above 1.75 GB.tried various versions of mkvextract gui ,avi-mux ,yamb but result is still the same.is it the video's problem?.when i tried to demux using xvid4psp it is showing the error NAL too big cannot extract.is there any other h.264 extractor for mkv files. Print(dur, START_TIME, timestamp_idx, sep='::') IsSuccess, ns_dur = video_parser0.get_static_pad('sink').query_position() Latest_timestamp, latest_idx = get_updated_timestamp() Return data, dataĭef set_updated_timestamp(new_timestamp: float, timestamp_idx: int) -> None: # GST COMMAND: 'gst-launch-1.0 filesrc location='./docker/premium_ads/com_1.mkv' ! matroskademux name=demux dio_0 ! queue ! avdec_aac ! audioconvert ! alsasink device='hw:0,3' _0 ! queue ! h264parse ! nvv4l2decoder ! nvvidconv flip-method=0 ! nvoverlaysink' Pad.link(audio_decoder0.get_static_pad('sink'))ĭnnect('pad-added', demux0_pad_added) Pad.link(video_parser0.get_static_pad('sink')) Video_sink = ('nvoverlaysink', 'video_sink') Video_nvidconv0 = ('nvvidconv', 'video_nvidconv0') Video_decoder0 = ('nvv4l2decoder', 'video_decoder0') t_property('location', VIDEO_PATH)ĭemux0 = ('matroskademux', 'demux0')Īudio_decoder0 = ('avdec_aac', 'audio_decoder0')Īudio_converter0 = ('audioconvert', 'audio_converter0') LOG_TIMESTAMP_PATH = './latest_timestamp.json'ĮND_TIME =

#Using xvid4psp to demux mp4 file code#

(This answer helped a lot: python - Seamless video loop in gstreamer - Stack Overflow)įinally, here is my messy playground code to get the functionality working, hope it helps someone.

#Using xvid4psp to demux mp4 file how to#

So after hours of researching and understanding the seeking concept in gstreamer to an extent, I have finally implemented a a python script that play a seamless loop, its a hack solution but it works and thought about sharing it:ġ- Concatenated all mkv videos that I want to play into one mkv file using the following src: join - How to concatenate all 'mkv' files using ffmpeg? - Stack OverflowĢ- In my case I can easily know the duration of each video seperately so I mimiced that by having a list for all video durationsģ- Kept track of my current position in the pipeline using _position()Ĥ- Upon program termination (in this case a KeyboardInterrupt Exception, I save the current position of pipeline into a json file which I can later read to play the video from the same position where it stopped (rounded down to the start of the clip)ĥ- Used SEGMENT_DONE and seeking to repeat a seamless loop. Qtdemux.c(7067): gst_qtdemux_process_adapter (): /GstPipeline:pipeline0/GstQTDemux:demux:Īny suggestions are appreciated, thank you ! ĮRROR: from element /GstPipeline:pipeline0/GstQTDemux:demux: GStreamer encountered a general stream error. I have tried using multifilesrc gst-launch-1.0 multifilesrc location='./video_%d.mp4' ! qtdemux name=demux dio_0 ! queue ! avdec_aac ! audioconvert ! alsasink device='hw:0,3' _0 ! queue ! h264parse ! nvv4l2decoder ! nvvidconv flip-method=0 ! nvoverlaysinkīut I have received the following error: Setting pipeline to PAUSED. During this reinitialization process the terminal screen appears, now I want to prevent this momentary terminal appearance and play the videos in a loop without everytime initializing a new gstreamer process. I am currently using this bash script to play multiple videos on gstreamer on my jetson nano: #!/bin/bashĭeclare -a arr=('video1.mp4' 'video2.mp4' 'video3.mp4')įor i in filesrc location=.'./$i' ! qtdemux name=demux dio_0 ! queue ! avdec_aac ! audioconvert ! alsasink device='hw:0,3' _0 ! queue ! h264parse ! nvv4l2decoder ! nvvidconv flip-method=0 ! nvoverlaysinkĪnd its working just fine but after the end of every video when the EOS is received a gst closes and reinitializes for the next video.