need some help to start

[kpolley]

need some help to start

[kpolley]

Hi,

Try these steps:

1. Clone the repository
   git clone https://github.com/kpolley/Python_AVrecorder.git

2. change your directory
   cd Python_AVrecorder

3. Install requirements
   pip install -r requirements.txt

4. Run picam.py
   python3 picam.py

You may run into program issues depending on your hardware. Please feel free to update with any issues and I'll do my best to help out.

P.S: don't worry about the .gitignore file. It's a config file so that github does not push files that are unnecessary for the repository.

[fagol]

Hello,
I come back to my project after a year of hiatus.
The whole works correctly, but the sound is ahead of the video. How to make this correction.
Thanks

[fagol]

small precision: this gap between sound and video begins after approximately 15 seconds.
thanks

[kpolley]

I would take a look at the ffmpeg command that is running to further debug...could be that your hardware requires additional parameters.

Python_AVrecorder/picam.py

Line 28 in 10134a8

cmd = "ffmpeg -i {1}/{0}.wav -i {1}/{0}.h264 -c:v copy -c:a aac -strict experimental {2}/{0}.mp4".format(file_name, tmp_dir, final_dir)

[fagol]

thank you for your feedback. But I'm not sure I understand what you want me to do.
maybe it:

Stopping threads...
starting mux...
ffmpeg version 3.2.14-1deb9u1+rpt1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1+deb9u1) 20170516
configuration: --prefix=/usr --extra-version='1deb9u1+rpt1' --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf --incdir=/usr/include/arm-linux-gnueabihf --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-omx-rpi --enable-mmal --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --arch=armhf --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, wav, from '/home/pi/video_tmp//10_20_15_12_16.wav':
Duration: 00:00:29.41, bitrate: 705 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono, s16, 705 kb/s
Input #1, h264, from '/home/pi/video_tmp//10_20_15_12_16.h264':
Duration: N/A, bitrate: N/A
Stream #1:0: Video: h264 (High), yuv420p(progressive), 1366x768, 25 fps, 25 tbr, 1200k tbn, 50 tbc
Output #0, mp4, to '/home/pi/video/10_20_15_12_16.mp4':
Metadata:
encoder : Lavf57.56.101
Stream #0:0: Video: h264 (High) ([33][0][0][0] / 0x0021), yuv420p(progressive), 1366x768, q=2-31, 25 fps, 25 tbr, 1200k tbn, 1200k tbc
Stream #0:1: Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, mono, fltp, 69 kb/s
Metadata:
encoder : Lavc57.64.101 aac
Stream mapping:
Stream #1:0 -> #0:0 (copy)
Stream #0:0 -> #0:1 (pcm_s16le (native) -> aac (native))
Press [q] to stop, [?] for help
[mp4 @ 0x1c6a2f0] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
frame= 39 fps=0.0 q=-1.0 size= 1109kB time=00:00:01.53 bitrate=5927.3kbits/s speed= 3x
frame= 96 fps= 95 q=-1.0 size= 2906kB time=00:00:03.80 bitrate=6251.7kbits/s speed=3.76x
frame= 166 fps=110 q=-1.0 size= 5142kB time=00:00:06.60 bitrate=6382.4kbits/s speed=4.36x
frame= 234 fps=116 q=-1.0 size= 7380kB time=00:00:09.33 bitrate=6476.8kbits/s speed=4.62x
frame= 311 fps=123 q=-1.0 size= 9948kB time=00:00:12.40 bitrate=6572.1kbits/s speed=4.92x
frame= 386 fps=128 q=-1.0 size= 12458kB time=00:00:15.41 bitrate=6619.1kbits/s speed= 5.1x
frame= 457 fps=129 q=-1.0 size= 14883kB time=00:00:18.25 bitrate=6680.5kbits/s speed=5.14x
frame= 527 fps=129 q=-1.0 size= 17197kB time=00:00:21.04 bitrate=6695.7kbits/s speed=5.15x
frame= 588 fps=128 q=-1.0 size= 19208kB time=00:00:23.49 bitrate=6696.1kbits/s speed=5.12x
frame= 657 fps=129 q=-1.0 size= 21492kB time=00:00:26.24 bitrate=6709.7kbits/s speed=5.15x
frame= 731 fps=130 q=-1.0 size= 23948kB time=00:00:29.21 bitrate=6716.1kbits/s speed=5.21x
frame= 749 fps=132 q=-1.0 Lsize= 24578kB time=00:00:29.92 bitrate=6729.4kbits/s speed=5.25x
video:24306kB audio:253kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.080301%
[aac @ 0x18c4890] Qavg: 257.785
done
fin
result ffmpeg.docx

[fagol]

hi,
I continued testing today.
My son has just lent me another micro USB and everything is OK. I just did a test on 120s (surroundings) and the video is synchronized with the audio.
I am happy, but amazed.