FFmpeg getting stuck and prints Finishing stream 0:0 without any data written to it.

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FFmpeg getting stuck and prints Finishing stream 0:0 without any data written to it.

Abhisek Techie
Hi,

I am using a logitech 310c camera in linux environment to capture video and
convert it to a .flv file , by using the below command

ffmpeg -f video4linux2 -s 432*240 -r 5 -pixel_format yuyv422 -i /dev/video1
out3.flv -loglevel debug

But , it gets stuck after printing "*[video4linux2,v4l2 @ 0x5864e400]
Setting time per frame to 1/5"* and when I interrupt  with ctrl+c  it
prints "*Output file is empty, nothing was encoded". *

Below is the debug log , any suggestions on what's wrong with my approach?

ffmpeg version N-91993-g50d9c85358 Copyright (c) 2000-2018 the FFmpeg
developers
  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  configuration: --disable-x86asm
  libavutil      56. 19.101 / 56. 19.101
  libavcodec     58. 30.100 / 58. 30.100
  libavformat    58. 18.101 / 58. 18.101
  libavdevice    58.  4.103 / 58.  4.103
  libavfilter     7. 32.100 /  7. 32.100
  libswscale      5.  2.100 /  5.  2.100
  libswresample   3.  2.100 /  3.  2.100
Splitting the commandline.
Reading option '-f' ... matched as option 'f' (force format) with argument
'video4linux2'.
Reading option '-s' ... matched as option 's' (set frame size (WxH or
abbreviation)) with argument '432*240'.
Reading option '-r' ... matched as option 'r' (set frame rate (Hz value,
fraction or abbreviation)) with argument '5'.
Reading option '-pixel_format' ... matched as AVOption 'pixel_format' with
argument 'yuyv422'.
Reading option '-i' ... matched as input url with argument '/dev/video1'.
Reading option 'out3.flv' ... matched as output url.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging
level) with argument 'debug'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option loglevel (set logging level) with argument debug.
Successfully parsed a group of options.
Parsing a group of options: input url /dev/video1.
Applying option f (force format) with argument video4linux2.
Applying option s (set frame size (WxH or abbreviation)) with argument
432*240.
Applying option r (set frame rate (Hz value, fraction or abbreviation))
with argument 5.
Successfully parsed a group of options.
Opening an input file: /dev/video1.
[video4linux2,v4l2 @ 0x5864e400] fd:3 capabilities:84200001
[video4linux2,v4l2 @ 0x5864e400] Current input_channel: 0, input_name:
Camera 1, input_std: 0
[video4linux2,v4l2 @ 0x5864e400] Setting time per frame to 1/5  * [Place
where it is getting stuck ]*
[video4linux2,v4l2 @ 0x5864e400] interrupted
Input #0, video4linux2,v4l2, from '/dev/video1':
  Duration: N/A, bitrate: 8294 kb/s
    Stream #0:0, 0, 1/1000000: Video: rawvideo, 1 reference frame (YUY2 /
0x32595559), yuyv422, 432x240 (0x0), 0/1, 8294 kb/s, 5 fps, 5 tbr, 1000k
tbn, 1000k tbc
Successfully opened the file.
Parsing a group of options: output url out3.flv.
Successfully parsed a group of options.
Opening an output file: out3.flv.
[file @ 0x58653a00] Setting default whitelist 'file,crypto'
Successfully opened the file.
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> flv1 (flv))
Press [q] to stop, [?] for help
Finishing stream 0:0 without any data written to it.
detected 1 logical cores
[graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'video_size' to value
'432x240'
[graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'pix_fmt' to value '1'
[graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'time_base' to value
'1/5'
[graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'pixel_aspect' to
value '0/1'
[graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'sws_param' to value
'flags=2'
[graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'frame_rate' to value
'5/1'
[graph 0 input from stream 0:0 @ 0x58654dc0] w:432 h:240 pixfmt:yuyv422
tb:1/5 fr:5/1 sar:0/1 sws_param:flags=2
[format @ 0x58655380] Setting 'pix_fmts' to value 'yuv420p'
[auto_scaler_0 @ 0x58655cc0] Setting 'flags' to value 'bicubic'
[auto_scaler_0 @ 0x58655cc0] w:iw h:ih flags:'bicubic' interl:0
[format @ 0x58655380] auto-inserting filter 'auto_scaler_0' between the
filter 'Parsed_null_0' and the filter 'format'
[AVFilterGraph @ 0x58654a00] query_formats: 4 queried, 2 merged, 1 already
done, 0 delayed
[auto_scaler_0 @ 0x58655cc0] w:432 h:240 fmt:yuyv422 sar:0/1 -> w:432 h:240
fmt:yuv420p sar:0/1 flags:0x4
[flv @ 0x58651480] intra_quant_bias = 0 inter_quant_bias = -64
Output #0, flv, to 'out3.flv':
  Metadata:
    encoder         : Lavf58.18.101
    Stream #0:0, 0, 1/1000: Video: flv1 (flv), 1 reference frame
([2][0][0][0] / 0x0002), yuv420p, 432x240, 0/1, q=2-31, 200 kb/s, 5 fps, 1k
tbn, 5 tbc
Metadata:
      encoder         : Lavc58.30.100 flv
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A
speed=   0x
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
Input file #0 (/dev/video1):
  Input stream #0:0 (video): 0 packets read (0 bytes); 0 frames decoded;
  Total: 0 packets (0 bytes) demuxed
Output file #0 (out3.flv):
  Output stream #0:0 (video): 0 frames encoded; 0 packets muxed (0 bytes);
  Total: 0 packets (0 bytes) muxed
Output file is empty, nothing was encoded (check -ss / -t / -frames
parameters if used)
0 frames successfully decoded, 0 decoding errors
[AVIOContext @ 0x58653a80] Statistics: 1 seeks, 1 writeouts
Exiting normally, received signal 2.

Regards
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Re: FFmpeg getting stuck and prints Finishing stream 0:0 without any data written to it.

Abhisek Techie
Hi,
Any suggestions,on the below issue.

Regards

On Thu, 18 Oct 2018, 15:29 Abhisek Techie, <[hidden email]>
wrote:

> Hi,
>
> I am using a logitech 310c camera in linux environment to capture video
> and convert it to a .flv file , by using the below command
>
> ffmpeg -f video4linux2 -s 432*240 -r 5 -pixel_format yuyv422 -i
> /dev/video1 out3.flv -loglevel debug
>
> But , it gets stuck after printing "*[video4linux2,v4l2 @ 0x5864e400]
> Setting time per frame to 1/5"* and when I interrupt  with ctrl+c  it
> prints "*Output file is empty, nothing was encoded". *
>
> Below is the debug log , any suggestions on what's wrong with my approach?
>
> ffmpeg version N-91993-g50d9c85358 Copyright (c) 2000-2018 the FFmpeg
> developers
>   built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
>   configuration: --disable-x86asm
>   libavutil      56. 19.101 / 56. 19.101
>   libavcodec     58. 30.100 / 58. 30.100
>   libavformat    58. 18.101 / 58. 18.101
>   libavdevice    58.  4.103 / 58.  4.103
>   libavfilter     7. 32.100 /  7. 32.100
>   libswscale      5.  2.100 /  5.  2.100
>   libswresample   3.  2.100 /  3.  2.100
> Splitting the commandline.
> Reading option '-f' ... matched as option 'f' (force format) with argument
> 'video4linux2'.
> Reading option '-s' ... matched as option 's' (set frame size (WxH or
> abbreviation)) with argument '432*240'.
> Reading option '-r' ... matched as option 'r' (set frame rate (Hz value,
> fraction or abbreviation)) with argument '5'.
> Reading option '-pixel_format' ... matched as AVOption 'pixel_format' with
> argument 'yuyv422'.
> Reading option '-i' ... matched as input url with argument '/dev/video1'.
> Reading option 'out3.flv' ... matched as output url.
> Reading option '-loglevel' ... matched as option 'loglevel' (set logging
> level) with argument 'debug'.
> Finished splitting the commandline.
> Parsing a group of options: global .
> Applying option loglevel (set logging level) with argument debug.
> Successfully parsed a group of options.
> Parsing a group of options: input url /dev/video1.
> Applying option f (force format) with argument video4linux2.
> Applying option s (set frame size (WxH or abbreviation)) with argument
> 432*240.
> Applying option r (set frame rate (Hz value, fraction or abbreviation))
> with argument 5.
> Successfully parsed a group of options.
> Opening an input file: /dev/video1.
> [video4linux2,v4l2 @ 0x5864e400] fd:3 capabilities:84200001
> [video4linux2,v4l2 @ 0x5864e400] Current input_channel: 0, input_name:
> Camera 1, input_std: 0
> [video4linux2,v4l2 @ 0x5864e400] Setting time per frame to 1/5  * [Place
> where it is getting stuck ]*
> [video4linux2,v4l2 @ 0x5864e400] interrupted
> Input #0, video4linux2,v4l2, from '/dev/video1':
>   Duration: N/A, bitrate: 8294 kb/s
>     Stream #0:0, 0, 1/1000000: Video: rawvideo, 1 reference frame (YUY2 /
> 0x32595559), yuyv422, 432x240 (0x0), 0/1, 8294 kb/s, 5 fps, 5 tbr, 1000k
> tbn, 1000k tbc
> Successfully opened the file.
> Parsing a group of options: output url out3.flv.
> Successfully parsed a group of options.
> Opening an output file: out3.flv.
> [file @ 0x58653a00] Setting default whitelist 'file,crypto'
> Successfully opened the file.
> Stream mapping:
>   Stream #0:0 -> #0:0 (rawvideo (native) -> flv1 (flv))
> Press [q] to stop, [?] for help
> Finishing stream 0:0 without any data written to it.
> detected 1 logical cores
> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'video_size' to value
> '432x240'
> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'pix_fmt' to value '1'
> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'time_base' to value
> '1/5'
> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'pixel_aspect' to
> value '0/1'
> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'sws_param' to value
> 'flags=2'
> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'frame_rate' to value
> '5/1'
> [graph 0 input from stream 0:0 @ 0x58654dc0] w:432 h:240 pixfmt:yuyv422
> tb:1/5 fr:5/1 sar:0/1 sws_param:flags=2
> [format @ 0x58655380] Setting 'pix_fmts' to value 'yuv420p'
> [auto_scaler_0 @ 0x58655cc0] Setting 'flags' to value 'bicubic'
> [auto_scaler_0 @ 0x58655cc0] w:iw h:ih flags:'bicubic' interl:0
> [format @ 0x58655380] auto-inserting filter 'auto_scaler_0' between the
> filter 'Parsed_null_0' and the filter 'format'
> [AVFilterGraph @ 0x58654a00] query_formats: 4 queried, 2 merged, 1 already
> done, 0 delayed
> [auto_scaler_0 @ 0x58655cc0] w:432 h:240 fmt:yuyv422 sar:0/1 -> w:432
> h:240 fmt:yuv420p sar:0/1 flags:0x4
> [flv @ 0x58651480] intra_quant_bias = 0 inter_quant_bias = -64
> Output #0, flv, to 'out3.flv':
>   Metadata:
>     encoder         : Lavf58.18.101
>     Stream #0:0, 0, 1/1000: Video: flv1 (flv), 1 reference frame
> ([2][0][0][0] / 0x0002), yuv420p, 432x240, 0/1, q=2-31, 200 kb/s, 5 fps, 1k
> tbn, 5 tbc
> Metadata:
>       encoder         : Lavc58.30.100 flv
>     Side data:
>       cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
> frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A
> speed=   0x
> video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
> muxing overhead: unknown
> Input file #0 (/dev/video1):
>   Input stream #0:0 (video): 0 packets read (0 bytes); 0 frames decoded;
>   Total: 0 packets (0 bytes) demuxed
> Output file #0 (out3.flv):
>   Output stream #0:0 (video): 0 frames encoded; 0 packets muxed (0 bytes);
>   Total: 0 packets (0 bytes) muxed
> Output file is empty, nothing was encoded (check -ss / -t / -frames
> parameters if used)
> 0 frames successfully decoded, 0 decoding errors
> [AVIOContext @ 0x58653a80] Statistics: 1 seeks, 1 writeouts
> Exiting normally, received signal 2.
>
> Regards
>
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Re: FFmpeg getting stuck and prints Finishing stream 0:0 without any data written to it.

DopeLabs
do you have single or dual displays? your command is selecting /dev/video1 which would be a 2nd display.. sources generally start at 0..

can you get a good capture using /dev/video0 ?



> On Oct 19, 2018, at 9:31 57PM, Abhisek Techie <[hidden email]> wrote:
>
> Hi,
> Any suggestions,on the below issue.
>
> Regards
>
> On Thu, 18 Oct 2018, 15:29 Abhisek Techie, <[hidden email]>
> wrote:
>
>> Hi,
>>
>> I am using a logitech 310c camera in linux environment to capture video
>> and convert it to a .flv file , by using the below command
>>
>> ffmpeg -f video4linux2 -s 432*240 -r 5 -pixel_format yuyv422 -i
>> /dev/video1 out3.flv -loglevel debug
>>
>> But , it gets stuck after printing "*[video4linux2,v4l2 @ 0x5864e400]
>> Setting time per frame to 1/5"* and when I interrupt  with ctrl+c  it
>> prints "*Output file is empty, nothing was encoded". *
>>
>> Below is the debug log , any suggestions on what's wrong with my approach?
>>
>> ffmpeg version N-91993-g50d9c85358 Copyright (c) 2000-2018 the FFmpeg
>> developers
>>  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
>>  configuration: --disable-x86asm
>>  libavutil      56. 19.101 / 56. 19.101
>>  libavcodec     58. 30.100 / 58. 30.100
>>  libavformat    58. 18.101 / 58. 18.101
>>  libavdevice    58.  4.103 / 58.  4.103
>>  libavfilter     7. 32.100 /  7. 32.100
>>  libswscale      5.  2.100 /  5.  2.100
>>  libswresample   3.  2.100 /  3.  2.100
>> Splitting the commandline.
>> Reading option '-f' ... matched as option 'f' (force format) with argument
>> 'video4linux2'.
>> Reading option '-s' ... matched as option 's' (set frame size (WxH or
>> abbreviation)) with argument '432*240'.
>> Reading option '-r' ... matched as option 'r' (set frame rate (Hz value,
>> fraction or abbreviation)) with argument '5'.
>> Reading option '-pixel_format' ... matched as AVOption 'pixel_format' with
>> argument 'yuyv422'.
>> Reading option '-i' ... matched as input url with argument '/dev/video1'.
>> Reading option 'out3.flv' ... matched as output url.
>> Reading option '-loglevel' ... matched as option 'loglevel' (set logging
>> level) with argument 'debug'.
>> Finished splitting the commandline.
>> Parsing a group of options: global .
>> Applying option loglevel (set logging level) with argument debug.
>> Successfully parsed a group of options.
>> Parsing a group of options: input url /dev/video1.
>> Applying option f (force format) with argument video4linux2.
>> Applying option s (set frame size (WxH or abbreviation)) with argument
>> 432*240.
>> Applying option r (set frame rate (Hz value, fraction or abbreviation))
>> with argument 5.
>> Successfully parsed a group of options.
>> Opening an input file: /dev/video1.
>> [video4linux2,v4l2 @ 0x5864e400] fd:3 capabilities:84200001
>> [video4linux2,v4l2 @ 0x5864e400] Current input_channel: 0, input_name:
>> Camera 1, input_std: 0
>> [video4linux2,v4l2 @ 0x5864e400] Setting time per frame to 1/5  * [Place
>> where it is getting stuck ]*
>> [video4linux2,v4l2 @ 0x5864e400] interrupted
>> Input #0, video4linux2,v4l2, from '/dev/video1':
>>  Duration: N/A, bitrate: 8294 kb/s
>>    Stream #0:0, 0, 1/1000000: Video: rawvideo, 1 reference frame (YUY2 /
>> 0x32595559), yuyv422, 432x240 (0x0), 0/1, 8294 kb/s, 5 fps, 5 tbr, 1000k
>> tbn, 1000k tbc
>> Successfully opened the file.
>> Parsing a group of options: output url out3.flv.
>> Successfully parsed a group of options.
>> Opening an output file: out3.flv.
>> [file @ 0x58653a00] Setting default whitelist 'file,crypto'
>> Successfully opened the file.
>> Stream mapping:
>>  Stream #0:0 -> #0:0 (rawvideo (native) -> flv1 (flv))
>> Press [q] to stop, [?] for help
>> Finishing stream 0:0 without any data written to it.
>> detected 1 logical cores
>> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'video_size' to value
>> '432x240'
>> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'pix_fmt' to value '1'
>> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'time_base' to value
>> '1/5'
>> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'pixel_aspect' to
>> value '0/1'
>> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'sws_param' to value
>> 'flags=2'
>> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'frame_rate' to value
>> '5/1'
>> [graph 0 input from stream 0:0 @ 0x58654dc0] w:432 h:240 pixfmt:yuyv422
>> tb:1/5 fr:5/1 sar:0/1 sws_param:flags=2
>> [format @ 0x58655380] Setting 'pix_fmts' to value 'yuv420p'
>> [auto_scaler_0 @ 0x58655cc0] Setting 'flags' to value 'bicubic'
>> [auto_scaler_0 @ 0x58655cc0] w:iw h:ih flags:'bicubic' interl:0
>> [format @ 0x58655380] auto-inserting filter 'auto_scaler_0' between the
>> filter 'Parsed_null_0' and the filter 'format'
>> [AVFilterGraph @ 0x58654a00] query_formats: 4 queried, 2 merged, 1 already
>> done, 0 delayed
>> [auto_scaler_0 @ 0x58655cc0] w:432 h:240 fmt:yuyv422 sar:0/1 -> w:432
>> h:240 fmt:yuv420p sar:0/1 flags:0x4
>> [flv @ 0x58651480] intra_quant_bias = 0 inter_quant_bias = -64
>> Output #0, flv, to 'out3.flv':
>>  Metadata:
>>    encoder         : Lavf58.18.101
>>    Stream #0:0, 0, 1/1000: Video: flv1 (flv), 1 reference frame
>> ([2][0][0][0] / 0x0002), yuv420p, 432x240, 0/1, q=2-31, 200 kb/s, 5 fps, 1k
>> tbn, 5 tbc
>> Metadata:
>>      encoder         : Lavc58.30.100 flv
>>    Side data:
>>      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
>> frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A
>> speed=   0x
>> video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
>> muxing overhead: unknown
>> Input file #0 (/dev/video1):
>>  Input stream #0:0 (video): 0 packets read (0 bytes); 0 frames decoded;
>>  Total: 0 packets (0 bytes) demuxed
>> Output file #0 (out3.flv):
>>  Output stream #0:0 (video): 0 frames encoded; 0 packets muxed (0 bytes);
>>  Total: 0 packets (0 bytes) muxed
>> Output file is empty, nothing was encoded (check -ss / -t / -frames
>> parameters if used)
>> 0 frames successfully decoded, 0 decoding errors
>> [AVIOContext @ 0x58653a80] Statistics: 1 seeks, 1 writeouts
>> Exiting normally, received signal 2.
>>
>> Regards
>>
> _______________________________________________
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Re: FFmpeg getting stuck and prints Finishing stream 0:0 without any data written to it.

Abhisek Techie
Hi,
I have double display and with /dev/video0 I don't encounter any issue.


On Sat, 20 Oct 2018, 15:08 DopeLabs <[hidden email] wrote:

> do you have single or dual displays? your command is selecting /dev/video1
> which would be a 2nd display.. sources generally start at 0..
>
> can you get a good capture using /dev/video0 ?
>
>
>
> > On Oct 19, 2018, at 9:31 57PM, Abhisek Techie <
> [hidden email]> wrote:
> >
> > Hi,
> > Any suggestions,on the below issue.
> >
> > Regards
> >
> > On Thu, 18 Oct 2018, 15:29 Abhisek Techie, <[hidden email]>
> > wrote:
> >
> >> Hi,
> >>
> >> I am using a logitech 310c camera in linux environment to capture video
> >> and convert it to a .flv file , by using the below command
> >>
> >> ffmpeg -f video4linux2 -s 432*240 -r 5 -pixel_format yuyv422 -i
> >> /dev/video1 out3.flv -loglevel debug
> >>
> >> But , it gets stuck after printing "*[video4linux2,v4l2 @ 0x5864e400]
> >> Setting time per frame to 1/5"* and when I interrupt  with ctrl+c  it
> >> prints "*Output file is empty, nothing was encoded". *
> >>
> >> Below is the debug log , any suggestions on what's wrong with my
> approach?
> >>
> >> ffmpeg version N-91993-g50d9c85358 Copyright (c) 2000-2018 the FFmpeg
> >> developers
> >>  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
> >>  configuration: --disable-x86asm
> >>  libavutil      56. 19.101 / 56. 19.101
> >>  libavcodec     58. 30.100 / 58. 30.100
> >>  libavformat    58. 18.101 / 58. 18.101
> >>  libavdevice    58.  4.103 / 58.  4.103
> >>  libavfilter     7. 32.100 /  7. 32.100
> >>  libswscale      5.  2.100 /  5.  2.100
> >>  libswresample   3.  2.100 /  3.  2.100
> >> Splitting the commandline.
> >> Reading option '-f' ... matched as option 'f' (force format) with
> argument
> >> 'video4linux2'.
> >> Reading option '-s' ... matched as option 's' (set frame size (WxH or
> >> abbreviation)) with argument '432*240'.
> >> Reading option '-r' ... matched as option 'r' (set frame rate (Hz value,
> >> fraction or abbreviation)) with argument '5'.
> >> Reading option '-pixel_format' ... matched as AVOption 'pixel_format'
> with
> >> argument 'yuyv422'.
> >> Reading option '-i' ... matched as input url with argument
> '/dev/video1'.
> >> Reading option 'out3.flv' ... matched as output url.
> >> Reading option '-loglevel' ... matched as option 'loglevel' (set logging
> >> level) with argument 'debug'.
> >> Finished splitting the commandline.
> >> Parsing a group of options: global .
> >> Applying option loglevel (set logging level) with argument debug.
> >> Successfully parsed a group of options.
> >> Parsing a group of options: input url /dev/video1.
> >> Applying option f (force format) with argument video4linux2.
> >> Applying option s (set frame size (WxH or abbreviation)) with argument
> >> 432*240.
> >> Applying option r (set frame rate (Hz value, fraction or abbreviation))
> >> with argument 5.
> >> Successfully parsed a group of options.
> >> Opening an input file: /dev/video1.
> >> [video4linux2,v4l2 @ 0x5864e400] fd:3 capabilities:84200001
> >> [video4linux2,v4l2 @ 0x5864e400] Current input_channel: 0, input_name:
> >> Camera 1, input_std: 0
> >> [video4linux2,v4l2 @ 0x5864e400] Setting time per frame to 1/5  * [Place
> >> where it is getting stuck ]*
> >> [video4linux2,v4l2 @ 0x5864e400] interrupted
> >> Input #0, video4linux2,v4l2, from '/dev/video1':
> >>  Duration: N/A, bitrate: 8294 kb/s
> >>    Stream #0:0, 0, 1/1000000: Video: rawvideo, 1 reference frame (YUY2 /
> >> 0x32595559), yuyv422, 432x240 (0x0), 0/1, 8294 kb/s, 5 fps, 5 tbr, 1000k
> >> tbn, 1000k tbc
> >> Successfully opened the file.
> >> Parsing a group of options: output url out3.flv.
> >> Successfully parsed a group of options.
> >> Opening an output file: out3.flv.
> >> [file @ 0x58653a00] Setting default whitelist 'file,crypto'
> >> Successfully opened the file.
> >> Stream mapping:
> >>  Stream #0:0 -> #0:0 (rawvideo (native) -> flv1 (flv))
> >> Press [q] to stop, [?] for help
> >> Finishing stream 0:0 without any data written to it.
> >> detected 1 logical cores
> >> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'video_size' to
> value
> >> '432x240'
> >> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'pix_fmt' to value
> '1'
> >> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'time_base' to
> value
> >> '1/5'
> >> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'pixel_aspect' to
> >> value '0/1'
> >> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'sws_param' to
> value
> >> 'flags=2'
> >> [graph 0 input from stream 0:0 @ 0x58654dc0] Setting 'frame_rate' to
> value
> >> '5/1'
> >> [graph 0 input from stream 0:0 @ 0x58654dc0] w:432 h:240 pixfmt:yuyv422
> >> tb:1/5 fr:5/1 sar:0/1 sws_param:flags=2
> >> [format @ 0x58655380] Setting 'pix_fmts' to value 'yuv420p'
> >> [auto_scaler_0 @ 0x58655cc0] Setting 'flags' to value 'bicubic'
> >> [auto_scaler_0 @ 0x58655cc0] w:iw h:ih flags:'bicubic' interl:0
> >> [format @ 0x58655380] auto-inserting filter 'auto_scaler_0' between the
> >> filter 'Parsed_null_0' and the filter 'format'
> >> [AVFilterGraph @ 0x58654a00] query_formats: 4 queried, 2 merged, 1
> already
> >> done, 0 delayed
> >> [auto_scaler_0 @ 0x58655cc0] w:432 h:240 fmt:yuyv422 sar:0/1 -> w:432
> >> h:240 fmt:yuv420p sar:0/1 flags:0x4
> >> [flv @ 0x58651480] intra_quant_bias = 0 inter_quant_bias = -64
> >> Output #0, flv, to 'out3.flv':
> >>  Metadata:
> >>    encoder         : Lavf58.18.101
> >>    Stream #0:0, 0, 1/1000: Video: flv1 (flv), 1 reference frame
> >> ([2][0][0][0] / 0x0002), yuv420p, 432x240, 0/1, q=2-31, 200 kb/s, 5
> fps, 1k
> >> tbn, 5 tbc
> >> Metadata:
> >>      encoder         : Lavc58.30.100 flv
> >>    Side data:
> >>      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
> >> frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A
> >> speed=   0x
> >> video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
> >> muxing overhead: unknown
> >> Input file #0 (/dev/video1):
> >>  Input stream #0:0 (video): 0 packets read (0 bytes); 0 frames decoded;
> >>  Total: 0 packets (0 bytes) demuxed
> >> Output file #0 (out3.flv):
> >>  Output stream #0:0 (video): 0 frames encoded; 0 packets muxed (0
> bytes);
> >>  Total: 0 packets (0 bytes) muxed
> >> Output file is empty, nothing was encoded (check -ss / -t / -frames
> >> parameters if used)
> >> 0 frames successfully decoded, 0 decoding errors
> >> [AVIOContext @ 0x58653a80] Statistics: 1 seeks, 1 writeouts
> >> Exiting normally, received signal 2.
> >>
> >> Regards
> >>
> > _______________________________________________
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> >
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