[FFmpeg-trac] #1570(avdevice:open): libv4l2: error dequeuing buf: Resource temporarily unavailable
FFmpeg
trac at avcodec.org
Sun Feb 10 19:52:31 CET 2013
#1570: libv4l2: error dequeuing buf: Resource temporarily unavailable
-------------------------------------+-------------------------------------
Reporter: llarevo | Owner:
Type: defect | Status: open
Priority: important | Component: avdevice
Version: git-master | Resolution:
Keywords: v4l2 | Blocked By:
regression | Reproduced by developer: 1
Blocking: |
Analyzed by developer: 1 |
-------------------------------------+-------------------------------------
Comment (by llarevo):
All requested testcases were broken with the current git, except the
ffplay commands without -r 25. In other words: ffmpeg doesn't work neither
with or without -r 25, while ffplay does work only without -r 25.
In Detail:
== 1. compiled without --enable-libv4l2 ==
'''1.1 ffmpeg -loglevel debug -f v4l2 -s vga -r 25 -i /dev/video0 out-vga-
2M-5min.mpg: BROKEN'''
{{{
ffmpeg version N-49795-g478fc7f Copyright (c) 2000-2013 the FFmpeg
developers
built on Feb 10 2013 19:25:16 with gcc 4.7.2 (GCC) 20121109 (Red Hat
4.7.2-8)
configuration: --prefix=/usr/local
libavutil 52. 17.101 / 52. 17.101
libavcodec 54. 91.102 / 54. 91.102
libavformat 54. 62.100 / 54. 62.100
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 37.101 / 3. 37.101
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set libav*
logging level) with argument 'debug'.
Reading option '-f' ... matched as option 'f' (force format) with argument
'v4l2'.
Reading option '-s' ... matched as option 's' (set frame size (WxH or
abbreviation)) with argument 'vga'.
Reading option '-r' ... matched as option 'r' (set frame rate (Hz value,
fraction or abbreviation)) with argument '25'.
Reading option '-i' ... matched as input file with argument '/dev/video0'.
Reading option 'out-vga-2M-5min.mpg' ... matched as output file.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option loglevel (set libav* logging level) with argument debug.
Successfully parsed a group of options.
Parsing a group of options: input file /dev/video0.
Applying option f (force format) with argument v4l2.
Applying option s (set frame size (WxH or abbreviation)) with argument
vga.
Applying option r (set frame rate (Hz value, fraction or abbreviation))
with argument 25.
Successfully parsed a group of options.
Opening an input file: /dev/video0.
[video4linux2,v4l2 @ 0x2b101c0] fd:3 capabilities:5010015
[video4linux2,v4l2 @ 0x2b101c0] Selecting input_channel: 0
[video4linux2,v4l2 @ 0x2b101c0] input_channel: 0, input_name: Television
[video4linux2,v4l2 @ 0x2b101c0] The V4L2 driver is using the interlaced
mode
[video4linux2,v4l2 @ 0x2b101c0] Current standard: PAL, id: 255,
frameperiod: 1/25
[video4linux2,v4l2 @ 0x2b101c0] The driver does not allow to change time
per frame
^Cinterrupted
rfps: 1.000000 0.006400
rfps: 1.083333 0.007511
Last message repeated 1 times
rfps: 1.166667 0.008711
Last message repeated 1 times
rfps: 1.250000 0.010000
=====>(several dozends of lines like this)<=====
rfps: 51.583333 0.016063
rfps: 51.666667 0.017798
rfps: 51.750000 0.019619
rfps: 23.976024 0.006705
Last message repeated 1 times
[video4linux2,v4l2 @ 0x2b101c0] Estimating duration from bitrate, this may
be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 1360520755.820252, bitrate: 92160 kb/s
Stream #0:0, 8, 1/1000000: Video: rawvideo (I420 / 0x30323449),
yuv420p, 640x480, 1/1000000, 92160 kb/s, 25 fps, 25 tbr, 1000k tbn, 1000k
tbc
Successfully opened the file.
Parsing a group of options: output file out-vga-2M-5min.mpg.
Successfully parsed a group of options.
Opening an output file: out-vga-2M-5min.mpg.
Successfully opened the file.
[buffer @ 0x2b16040] Setting entry with key 'video_size' to value
'640x480'
[buffer @ 0x2b16040] Setting entry with key 'pix_fmt' to value '0'
[buffer @ 0x2b16040] Setting entry with key 'time_base' to value '1/25'
[buffer @ 0x2b16040] Setting entry with key 'pixel_aspect' to value '0/1'
[buffer @ 0x2b16040] Setting entry with key 'sws_param' to value 'flags=2'
[buffer @ 0x2b16040] Setting entry with key 'frame_rate' to value '25/1'
[graph 0 input from stream 0:0 @ 0x2b10c80] w:640 h:480 pixfmt:yuv420p
tb:1/25 fr:25/1 sar:0/1 sws_param:flags=2
[graph 0 input from stream 0:0 @ 0x2b10c80] TB:0.040000
FRAME_RATE:25.000000 SAMPLE_RATE:nan
[mpeg1video @ 0x2b11b80] detected 4 logical cores
[mpeg1video @ 0x2b11b80] intra_quant_bias = 96 inter_quant_bias = 0
[mpeg @ 0x2b11400] VBV buffer size not set, muxing may fail
Output #0, mpeg, to 'out-vga-2M-5min.mpg':
Metadata:
encoder : Lavf54.62.100
Stream #0:0, 0, 1/90000: Video: mpeg1video, yuv420p, 640x480, 1/25,
q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> mpeg1video)
Press [q] to stop, [?] for help
frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A
video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead -nan%
Output file is empty, nothing was encoded (check -ss / -t / -frames
parameters if used)
Received signal 2: terminating.
}}}
'''1.2 ffmpeg -loglevel debug -f v4l2 -s vga -i /dev/video0 out-vga-2M-
5min.mpg: BROKEN'''
{{{
ffmpeg -loglevel debug -f v4l2 -s vga -i /dev/video0 out-vga-2M-5min.mpg
ffmpeg version N-49795-g478fc7f Copyright (c) 2000-2013 the FFmpeg
developers
built on Feb 10 2013 19:25:16 with gcc 4.7.2 (GCC) 20121109 (Red Hat
4.7.2-8)
configuration: --prefix=/usr/local
libavutil 52. 17.101 / 52. 17.101
libavcodec 54. 91.102 / 54. 91.102
libavformat 54. 62.100 / 54. 62.100
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 37.101 / 3. 37.101
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set libav*
logging level) with argument 'debug'.
Reading option '-f' ... matched as option 'f' (force format) with argument
'v4l2'.
Reading option '-s' ... matched as option 's' (set frame size (WxH or
abbreviation)) with argument 'vga'.
Reading option '-i' ... matched as input file with argument '/dev/video0'.
Reading option 'out-vga-2M-5min.mpg' ... matched as output file.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option loglevel (set libav* logging level) with argument debug.
Successfully parsed a group of options.
Parsing a group of options: input file /dev/video0.
Applying option f (force format) with argument v4l2.
Applying option s (set frame size (WxH or abbreviation)) with argument
vga.
Successfully parsed a group of options.
Opening an input file: /dev/video0.
[video4linux2,v4l2 @ 0x222d0e0] fd:3 capabilities:5010015
[video4linux2,v4l2 @ 0x222d0e0] Selecting input_channel: 0
[video4linux2,v4l2 @ 0x222d0e0] input_channel: 0, input_name: Television
[video4linux2,v4l2 @ 0x222d0e0] The V4L2 driver is using the interlaced
mode
[video4linux2,v4l2 @ 0x222d0e0] Current standard: PAL, id: 255,
frameperiod: 1/25
^Cinterrupted <========================Strg+c here
rfps: 1.000000 0.006400
Last message repeated 1 times
rfps: 1.083333 0.007511
Last message repeated 1 times
rfps: 1.166667 0.008711
rfps: 1.250000 0.010000
rfps: 1.333333 0.011378
rfps: 1.416667 0.012845
Last message repeated 1 times
rfps: 1.500000 0.014400
====================lots more of this garbage===================
rfps: 51.416667 0.012857
rfps: 51.500000 0.014413
rfps: 51.583333 0.016057
rfps: 51.666667 0.017792
rfps: 51.750000 0.019614
Last message repeated 1 times
rfps: 23.976024 0.006706
[video4linux2,v4l2 @ 0x222d0e0] Estimating duration from bitrate, this may
be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 1360520929.062198, bitrate: 92160 kb/s
Stream #0:0, 8, 1/1000000: Video: rawvideo (I420 / 0x30323449),
yuv420p, 640x480, 1/1000000, 92160 kb/s, 25 fps, 25 tbr, 1000k tbn, 1000k
tbc
Successfully opened the file.
Parsing a group of options: output file out-vga-2M-5min.mpg.
Successfully parsed a group of options.
Opening an output file: out-vga-2M-5min.mpg.
File 'out-vga-2M-5min.mpg' already exists. Overwrite ? [y/N] y
Successfully opened the file.
[buffer @ 0x2232ec0] Setting entry with key 'video_size' to value
'640x480'
[buffer @ 0x2232ec0] Setting entry with key 'pix_fmt' to value '0'
[buffer @ 0x2232ec0] Setting entry with key 'time_base' to value
'1/1000000'
[buffer @ 0x2232ec0] Setting entry with key 'pixel_aspect' to value '0/1'
[buffer @ 0x2232ec0] Setting entry with key 'sws_param' to value 'flags=2'
[buffer @ 0x2232ec0] Setting entry with key 'frame_rate' to value '25/1'
[graph 0 input from stream 0:0 @ 0x2232500] w:640 h:480 pixfmt:yuv420p
tb:1/1000000 fr:25/1 sar:0/1 sws_param:flags=2
[mpeg1video @ 0x222e800] detected 4 logical cores
[mpeg1video @ 0x222e800] intra_quant_bias = 96 inter_quant_bias = 0
[mpeg @ 0x222e080] VBV buffer size not set, muxing may fail
Output #0, mpeg, to 'out-vga-2M-5min.mpg':
Metadata:
encoder : Lavf54.62.100
Stream #0:0, 0, 1/90000: Video: mpeg1video, yuv420p, 640x480, 1/25,
q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> mpeg1video)
Press [q] to stop, [?] for help
frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A
video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead -nan%
Output file is empty, nothing was encoded (check -ss / -t / -frames
parameters if used)
Received signal 2: terminating.
}}}
'''1.3 ffplay -loglevel debug -f video4linux2 -r 25 -probesize 32
/dev/video0: BROKEN'''
{{{
ffplay version N-49795-g478fc7f Copyright (c) 2003-2013 the FFmpeg
developers
built on Feb 10 2013 19:25:16 with gcc 4.7.2 (GCC) 20121109 (Red Hat
4.7.2-8)
configuration: --prefix=/usr/local
libavutil 52. 17.101 / 52. 17.101
libavcodec 54. 91.102 / 54. 91.102
libavformat 54. 62.100 / 54. 62.100
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 37.101 / 3. 37.101
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
Failed to set value '25' for option 'r'
}}}
'''1.4 ffplay -loglevel debug -f video4linux2 -probesize 32 /dev/video0:
GOOD'''
{{{
ffplay version N-49795-g478fc7f Copyright (c) 2003-2013 the FFmpeg
developers
built on Feb 10 2013 19:25:16 with gcc 4.7.2 (GCC) 20121109 (Red Hat
4.7.2-8)
configuration: --prefix=/usr/local
libavutil 52. 17.101 / 52. 17.101
libavcodec 54. 91.102 / 54. 91.102
libavformat 54. 62.100 / 54. 62.100
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 37.101 / 3. 37.101
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect:
Connection refused
[video4linux2,v4l2 @ 0x7f643c000940] fd:5 capabilities:5010015
[video4linux2,v4l2 @ 0x7f643c000940] Selecting input_channel: 0
[video4linux2,v4l2 @ 0x7f643c000940] input_channel: 0, input_name:
Television
[video4linux2,v4l2 @ 0x7f643c000940] Querying the device for the current
frame size
[video4linux2,v4l2 @ 0x7f643c000940] Setting frame size to 720x576
[video4linux2,v4l2 @ 0x7f643c000940] The V4L2 driver is using the
interlaced mode
[video4linux2,v4l2 @ 0x7f643c000940] Current standard: PAL, id: 255,
frameperiod: 1/25
[video4linux2,v4l2 @ 0x7f643c000940] Probe buffer size limit of 32 bytes
reached
[video4linux2,v4l2 @ 0x7f643c000940] Stream #0: not enough frames to
estimate rate; consider increasing probesize
[video4linux2,v4l2 @ 0x7f643c000940] Estimating duration from bitrate,
this may be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 1360521113.544285, bitrate: 124416 kb/s
Stream #0:0, 1, 1/1000000: Video: rawvideo (I420 / 0x30323449),
yuv420p, 720x576, 1/1000000, 124416 kb/s, 25 fps, 1000k tbr, 1000k tbn,
1000k tbc
Video frame changed from size:0x0 format:none serial:-1 to size:720x576
format:yuv420p serial:1
[buffer @ 0x7f6434000e40] Setting entry with key 'video_size' to value
'720x576'
[buffer @ 0x7f6434000e40] Setting entry with key 'pix_fmt' to value '0'
[buffer @ 0x7f6434000e40] Setting entry with key 'time_base' to value
'1/1000000'
[buffer @ 0x7f6434000e40] Setting entry with key 'pixel_aspect' to value
'0/1'
[ffplay_buffer @ 0x7f6434000d20] w:720 h:576 pixfmt:yuv420p tb:1/1000000
fr:0/1 sar:0/1 sws_param:
[crop @ 0x7f6434002000] Setting 'w' to value 'floor(in_w/2)*2'
[crop @ 0x7f6434002000] Setting 'h' to value 'floor(in_h/2)*2'
[ffplay_crop @ 0x7f6434001ee0] w:720 h:576 sar:0/1 -> w:720 h:576 sar:0/1
-9223372036854775808.00 A-V: 0.000 fd= 0 aq= 0KB vq= 0KB sq=
0B f=0/-9223372036854775808.00 A-V: 0.000 fd= 0 aq= 0KB vq= 3038KB
sq= 0B f=0/1360521117.45 A-V: 0.000 fd= 0 aq= 0KB vq= 2430KB sq=
0B f=0/0
}}}
== 2. compiled with --enable-libv4l2 ==
'''2.1 ffmpeg -loglevel debug -f v4l2 -s vga -r 25 -i /dev/video0 out-vga-
2M-5min.mpg: BROKEN'''
{{{
libv4l2: error dequeuing buf: Resource temporarily unavailable
=================lots more of this garbage===================
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable^C
<=============strg+c
interrupted
rfps: 1.000000 0.006400
Last message repeated 1 times
rfps: 1.083333 0.007511
=================lots more of this garbage===================
rfps: 51.666667 0.017794
Last message repeated 1 times
rfps: 51.750000 0.019617
rfps: 23.976024 0.006706
Last message repeated 1 times
[video4linux2,v4l2 @ 0x289c1c0] Estimating duration from bitrate, this may
be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 1360521529.548964, bitrate: 92160 kb/s
Stream #0:0, 8, 1/1000000: Video: rawvideo (I420 / 0x30323449),
yuv420p, 640x480, 1/1000000, 92160 kb/s, 25 fps, 25 tbr, 1000k tbn, 1000k
tbc
Successfully opened the file.
Parsing a group of options: output file out-vga-2M-5min.mpg.
Successfully parsed a group of options.
Opening an output file: out-vga-2M-5min.mpg.
File 'out-vga-2M-5min.mpg' already exists. Overwrite ? [y/N] y
Successfully opened the file.
[buffer @ 0x28a2040] Setting entry with key 'video_size' to value
'640x480'
[buffer @ 0x28a2040] Setting entry with key 'pix_fmt' to value '0'
[buffer @ 0x28a2040] Setting entry with key 'time_base' to value '1/25'
[buffer @ 0x28a2040] Setting entry with key 'pixel_aspect' to value '0/1'
[buffer @ 0x28a2040] Setting entry with key 'sws_param' to value 'flags=2'
[buffer @ 0x28a2040] Setting entry with key 'frame_rate' to value '25/1'
[graph 0 input from stream 0:0 @ 0x289cc80] w:640 h:480 pixfmt:yuv420p
tb:1/25 fr:25/1 sar:0/1 sws_param:flags=2
[graph 0 input from stream 0:0 @ 0x289cc80] TB:0.040000
FRAME_RATE:25.000000 SAMPLE_RATE:nan
[mpeg1video @ 0x289db80] detected 4 logical cores
[mpeg1video @ 0x289db80] intra_quant_bias = 96 inter_quant_bias = 0
[mpeg @ 0x289d400] VBV buffer size not set, muxing may fail
Output #0, mpeg, to 'out-vga-2M-5min.mpg':
Metadata:
encoder : Lavf54.62.100
Stream #0:0, 0, 1/90000: Video: mpeg1video, yuv420p, 640x480, 1/25,
q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> mpeg1video)
Press [q] to stop, [?] for help
frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A
video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead -nan%
Output file is empty, nothing was encoded (check -ss / -t / -frames
parameters if used)
Received signal 2: terminating.
}}}
'''2.2 ffmpeg -loglevel debug -f v4l2 -s vga -i /dev/video0 out-vga-2M-
5min.mpg: BROKEN'''
{{{
libv4l2: error dequeuing buf: Resource temporarily unavailable
==============================much more of this garbage=================
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
libv4l2: error dequeuing buf: Resource temporarily unavailable
^Clibv4l2: error dequeuing buf: Resource temporarily unavailable
^Cinterrupted <=============================strg+c
rfps: 1.000000 0.006401
Last message repeated 1 times
rfps: 1.083333 0.007513
Last message repeated 1 times
==============================much more of this garbage=================
rfps: 23.976024 0.006680
Last message repeated 1 times
[video4linux2,v4l2 @ 0x327e0e0] Estimating duration from bitrate, this may
be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 1360521780.631799, bitrate: 92160 kb/s
Stream #0:0, 8, 1/1000000: Video: rawvideo (I420 / 0x30323449),
yuv420p, 640x480, 1/1000000, 92160 kb/s, 25 fps, 25 tbr, 1000k tbn, 1000k
tbc
Successfully opened the file.
Parsing a group of options: output file out-vga-2M-5min.mpg.
Successfully parsed a group of options.
Opening an output file: out-vga-2M-5min.mpg.
File 'out-vga-2M-5min.mpg' already exists. Overwrite ? [y/N] y
Successfully opened the file.
[buffer @ 0x32840a0] Setting entry with key 'video_size' to value
'640x480'
[buffer @ 0x32840a0] Setting entry with key 'pix_fmt' to value '0'
[buffer @ 0x32840a0] Setting entry with key 'time_base' to value
'1/1000000'
[buffer @ 0x32840a0] Setting entry with key 'pixel_aspect' to value '0/1'
[buffer @ 0x32840a0] Setting entry with key 'sws_param' to value 'flags=2'
[buffer @ 0x32840a0] Setting entry with key 'frame_rate' to value '25/1'
[graph 0 input from stream 0:0 @ 0x3283240] w:640 h:480 pixfmt:yuv420p
tb:1/1000000 fr:25/1 sar:0/1 sws_param:flags=2
[mpeg1video @ 0x327f8c0] detected 4 logical cores
[mpeg1video @ 0x327f8c0] intra_quant_bias = 96 inter_quant_bias = 0
[mpeg @ 0x327f060] VBV buffer size not set, muxing may fail
Output #0, mpeg, to 'out-vga-2M-5min.mpg':
Metadata:
encoder : Lavf54.62.100
Stream #0:0, 0, 1/90000: Video: mpeg1video, yuv420p, 640x480, 1/25,
q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> mpeg1video)
Press [q] to stop, [?] for help
frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A
video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead -nan%
Output file is empty, nothing was encoded (check -ss / -t / -frames
parameters if used)
Received signal 2: terminating.
}}}
'''2.3 ffplay -loglevel debug -f v4l2 -r 25 -probesize 32 /dev/video0:
BROKEN'''
{{{
ffplay version N-49795-g478fc7f Copyright (c) 2003-2013 the FFmpeg
developers
built on Feb 10 2013 19:36:45 with gcc 4.7.2 (GCC) 20121109 (Red Hat
4.7.2-8)
configuration: --prefix=/usr/local --enable-libv4l2
libavutil 52. 17.101 / 52. 17.101
libavcodec 54. 91.102 / 54. 91.102
libavformat 54. 62.100 / 54. 62.100
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 37.101 / 3. 37.101
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
Failed to set value '25' for option 'r'
}}}
'''2.4 ffplay -loglevel debug -f v4l2 -probesize 32 /dev/video0: GOOD'''
{{{
ffplay version N-49795-g478fc7f Copyright (c) 2003-2013 the FFmpeg
developers
built on Feb 10 2013 19:36:45 with gcc 4.7.2 (GCC) 20121109 (Red Hat
4.7.2-8)
configuration: --prefix=/usr/local --enable-libv4l2
libavutil 52. 17.101 / 52. 17.101
libavcodec 54. 91.102 / 54. 91.102
libavformat 54. 62.100 / 54. 62.100
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 37.101 / 3. 37.101
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect:
Connection refused
[video4linux2,v4l2 @ 0x7f3dc8000940] fd:5 capabilities:5010015
[video4linux2,v4l2 @ 0x7f3dc8000940] Selecting input_channel: 0
[video4linux2,v4l2 @ 0x7f3dc8000940] input_channel: 0, input_name:
Television
[video4linux2,v4l2 @ 0x7f3dc8000940] Querying the device for the current
frame size
[video4linux2,v4l2 @ 0x7f3dc8000940] Setting frame size to 720x576
[video4linux2,v4l2 @ 0x7f3dc8000940] The V4L2 driver is using the
interlaced mode
[video4linux2,v4l2 @ 0x7f3dc8000940] Current standard: PAL, id: 255,
frameperiod: 1/25
[video4linux2,v4l2 @ 0x7f3dc8000940] Probe buffer size limit of 32 bytes
reached
[video4linux2,v4l2 @ 0x7f3dc8000940] Stream #0: not enough frames to
estimate rate; consider increasing probesize
[video4linux2,v4l2 @ 0x7f3dc8000940] Estimating duration from bitrate,
this may be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 1360522048.474854, bitrate: 124416 kb/s
Stream #0:0, 1, 1/1000000: Video: rawvideo (I420 / 0x30323449),
yuv420p, 720x576, 1/1000000, 124416 kb/s, 25 fps, 1000k tbr, 1000k tbn,
1000k tbc
Video frame changed from size:0x0 format:none serial:-1 to size:720x576
format:yuv420p serial:1
[buffer @ 0x7f3dc0000e40] Setting entry with key 'video_size' to value
'720x576'
[buffer @ 0x7f3dc0000e40] Setting entry with key 'pix_fmt' to value '0'
[buffer @ 0x7f3dc0000e40] Setting entry with key 'time_base' to value
'1/1000000'
[buffer @ 0x7f3dc0000e40] Setting entry with key 'pixel_aspect' to value
'0/1'
[ffplay_buffer @ 0x7f3dc0000d20] w:720 h:576 pixfmt:yuv420p tb:1/1000000
fr:0/1 sar:0/1 sws_param:
[crop @ 0x7f3dc0002000] Setting 'w' to value 'floor(in_w/2)*2'
[crop @ 0x7f3dc0002000] Setting 'h' to value 'floor(in_h/2)*2'
[ffplay_crop @ 0x7f3dc0001ee0] w:720 h:576 sar:0/1 -> w:720 h:576 sar:0/1
^C[tbastian at tbastian-server Downloads]$ 0KB vq= 3038KB sq= 0B f=0/0
B f=0/0
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1570#comment:16>
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