[FFmpeg-user] RES: bitrate=N/A at 640x480, no video recorded

[Guilherme de Oliveira Costa]

Got version 3.3.2 from git, cross compiled it and ran with the same options.

ffmpeg version n3.3-2-gda693f8daa Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 4.9.3 (crosstool-NG crosstool-ng-1.22.0)
  configuration: --cross-prefix=arm-linux-gnueabihf- --arch=arm --target-os=linux --extra-ldflags=-static
  libavutil      55. 58.100 / 55. 58.100
  libavcodec     57. 89.100 / 57. 89.100
  libavformat    57. 71.100 / 57. 71.100
  libavdevice    57.  6.100 / 57.  6.100
  libavfilter     6. 82.100 /  6. 82.100
  libswscale      4.  6.100 /  4.  6.100
  libswresample   2.  7.100 /  2.  7.100
Input #0, video4linux2,v4l2, from '/dev/video0':
  Duration: N/A, start: 2980.791813, bitrate: 147456 kb/s
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 147456 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg1video (native))
Press [q] to stop, [?] for help
[mpeg @ 0x2c191c0] VBV buffer size not set, using default size of 130KB
If you want the mpeg file to be compliant to some specification
Like DVD, VCD or others, make sure you set the correct buffer size
Output #0, mpeg, to 'out.mpg':
  Metadata:
    encoder         : Lavf57.71.100
    Stream #0:0: Video: mpeg1video, yuv420p, 640x480, q=2-31, 200 kb/s, 30 fps, 90k tbn, 30 tbc
    Metadata:
      encoder         : Lavc57.89.100 mpeg1video
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    8 fps=0.7 q=3.1 size=     100kB time=00:00:00.16 bitrate=4914.9kbits/s dup=6 drop=0 speed=0.0147x

Now the bitrate shows up, but the recording speed is still very slow.

Unfortunately I can't do anything about the confidentiality note =(

Regards,
---
Guilherme de Oliveira Costa
Firmware Engineer - Autotrac Comercio Telecomunicacoes
www.autotrac.com.br
guilherme.oliveira(at)autotrac.com.br
Phone: +55 61 3307 7000 (Extension 2665)


-----Mensagem original-----
De: ffmpeg-user [mailto:ffmpeg-user-bounces at ffmpeg.org] Em nome de Lou
Enviada em: quinta-feira, 11 de maio de 2017 15:43
Para: ffmpeg-user at ffmpeg.org
Assunto: Re: [FFmpeg-user] bitrate=N/A at 640x480, no video recorded

On Thu, May 11, 2017, at 10:10 AM, Guilherme de Oliveira Costa wrote:
>
> The output:
> ffmpeg version 2.8.7 Copyright (c) 2000-2016 the FFmpeg developers

This is old. First step is to try a recent ffmpeg.

If possible, please try to avoid sending confidentiality notices to this public mailing list.
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