[FFmpeg-trac] #2410(avdevice:open): ffmpeg down with video4linux2.
FFmpeg
trac at avcodec.org
Fri Mar 29 13:27:14 CET 2013
#2410: ffmpeg down with video4linux2.
------------------------------------+------------------------------------
Reporter: dinhka | Owner:
Type: defect | Status: open
Priority: normal | Component: avdevice
Version: git-master | Resolution:
Keywords: v4l2 | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
------------------------------------+------------------------------------
Comment (by dinhka):
Replying to [comment:18 cehoyos]:
Hi,
I have a test case then ffmpeg work with stk1160 driver.
1. reboot my pc
the stk1160 driver inits ok:
usb 2-2: New device Syntek Semiconductor USB 2.0 Video Capture
Controller @ 480 Mbps (05e1:0408, interface 0, class 0)
usb 2-2: video interface 0 found
stk1160: driver ver 0.9.4 successfully loaded
stk1160: registers to NTSC like standard
AC'97 0 access is not valid [0x0], removing mixer.
stk1160 2-2:1.0: V4L2 device registered as video0
usbcore: registered new interface driver stk1160
usbcore: registered new interface driver snd-usb-audio
2. run command
ffmpeg -f video4linux2 -pix_fmt yuv420p -i /dev/video0 -f alsa -ar
22050 -ac 2 -acodec pcm_s16le -i hw:1 -vcodec mpeg4 -vtag DX50 -b 1200k -r
25 -acodec libmp3lame -ar 44100 -ac 2 -ab 128k -y test.avi
bug as:
[video4linux2,v4l2 @ 0x964f400] The V4L2 driver changed the video from
720x576 to 720x480
[video4linux2,v4l2 @ 0x964f400] ioctl(VIDIOC_G_PARM): Inappropriate ioctl
for device
/dev/video0: Inappropriate ioctl for device
3. I run next commandline
mencoder tv:// -tv
driver=v4l2:width=720:height=576:norm=PAL:outfmt=uyvy:device=/dev/video0:input=0:fps=25
-o test.mp4
MEncoder SVN-r31628-4.4.6 (C) 2000-2010 MPlayer Team
WARNING: OUTPUT FILE FORMAT IS _AVI_. See -of help.
success: format: 9 data: 0x0 - 0x0
TV file format detected.
Selected driver: v4l2
name: Video 4 Linux 2 input
author: Martin Olschewski <olschewski at zpr.uni-koeln.de>
comment: first try, more to come ;-)
Selected device: stk1160
Capabilites: video capture read/write streaming
supported norms: 0 = NTSC; 1 = NTSC-M; 2 = NTSC-M-JP; 3 = NTSC-M-KR; 4 =
NTSC-443; 5 = PAL; 6 = PAL-BG; 7 = PAL-H; 8 = PAL-I; 9 = PAL-DK; 10 =
PAL-M; 11 = PAL-N; 12 = PAL-Nc; 13 = PAL-60; 14 = SECAM; 15 = SECAM-B; 16
= SECAM-G; 17 = SECAM-H; 18 = SECAM-DK; 19 = SECAM-L; 20 = SECAM-Lc;
inputs: 0 = Composite0; 1 = Composite1; 2 = Composite2; 3 = Composite3;
Current input: 0
Current format: UYVY
Selected input hasn't got a tuner!
Unable to open '/dev/dsp': No such file or directory
v4l2: ioctl set mute failed: Invalid argument
v4l2: 0 frames successfully processed, 0 frames dropped.
============ Sorry, this file format is not recognized/supported
=============
=== If this file is an AVI, ASF or MPEG stream, please contact the author!
===
Cannot open demuxer.
Exiting...
4. then I run again the commandline in step 2, ffmpeg work with stk1160
driver.
ffmpeg -loglevel 99 -f video4linux2 -i /dev/video0 -vcodec mpeg4 -b
1200k -y test.avi
ffmpeg version N-51426-gdd17843 Copyright (c) 2000-2013 the FFmpeg
developers
built on Mar 29 2013 00:22:28 with gcc 4.4.7 (GCC) 20120313 (Red Hat
4.4.7-3)
configuration: --enable-version3 --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-avfilter --enable-nonfree --enable-libmp3lame
--enable-gpl --enable-libfaac --enable-libx264 --enable-pthreads
--disable-stripping --enable-libass --extra-cflags=-I/usr/local/include
--disable-debug
libavutil 52. 22.101 / 52. 22.101
libavcodec 55. 2.100 / 55. 2.100
libavformat 55. 0.100 / 55. 0.100
libavdevice 55. 0.100 / 55. 0.100
libavfilter 3. 48.105 / 3. 48.105
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set libav*
logging level) with argument '99'.
Reading option '-f' ... matched as option 'f' (force format) with argument
'video4linux2'.
Reading option '-i' ... matched as input file with argument '/dev/video0'.
Reading option '-vcodec' ... matched as option 'vcodec' (force video codec
('copy' to copy stream)) with argument 'mpeg4'.
Reading option '-b' ... matched as option 'b' (video bitrate (please use
-b:v)) with argument '1200k'.
Reading option '-y' ... matched as option 'y' (overwrite output files)
with argument '1'.
Reading option 'test.avi' ... matched as output file.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option loglevel (set libav* logging level) with argument 99.
Applying option y (overwrite output files) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input file /dev/video0.
Applying option f (force format) with argument video4linux2.
Successfully parsed a group of options.
Opening an input file: /dev/video0.
[video4linux2,v4l2 @ 0x9df4440] fd:3 capabilities:5000001
[video4linux2,v4l2 @ 0x9df4440] Current input_channel: 0, input_name:
Composite0
[video4linux2,v4l2 @ 0x9df4440] Querying the device for the current frame
size
[video4linux2,v4l2 @ 0x9df4440] Setting frame size to 720x576
[video4linux2,v4l2 @ 0x9df4440] Trying to set codec:rawvideo
pix_fmt:yuv420p
Last message repeated 1 times
[video4linux2,v4l2 @ 0x9df4440] Trying to set codec:rawvideo
pix_fmt:yuv422p
[video4linux2,v4l2 @ 0x9df4440] Trying to set codec:rawvideo
pix_fmt:yuyv422
[video4linux2,v4l2 @ 0x9df4440] Trying to set codec:rawvideo
pix_fmt:uyvy422
[video4linux2,v4l2 @ 0x9df4440] The V4L2 driver is using the interlaced
mode
[video4linux2,v4l2 @ 0x9df4440] Current standard: PAL, id: 255,
frameperiod: 1/25
[video4linux2,v4l2 @ 0x9df4440] All info found
[video4linux2,v4l2 @ 0x9df4440] Estimating duration from bitrate, this may
be inaccurate
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 1364559870.645412, bitrate: 165888 kb/s
Stream #0:0, 1, 1/1000000: Video: rawvideo (UYVY / 0x59565955),
uyvy422, 720x576, 1/1000000, 165888 kb/s, 25 fps, 25 tbr, 1000k tbn, 1000k
tbc
Successfully opened the file.
Parsing a group of options: output file test.avi.
Applying option vcodec (force video codec ('copy' to copy stream)) with
argument mpeg4.
Applying option b (video bitrate (please use -b:v)) with argument 1200k.
Please use -b:a or -b:v, -b is ambiguous
Successfully parsed a group of options.
Opening an output file: test.avi.
Successfully opened the file.
[buffer @ 0x9de3380] Setting entry with key 'video_size' to value
'720x576'
[buffer @ 0x9de3380] Setting entry with key 'pix_fmt' to value '17'
[buffer @ 0x9de3380] Setting entry with key 'time_base' to value
'1/1000000'
[buffer @ 0x9de3380] Setting entry with key 'pixel_aspect' to value '0/1'
[buffer @ 0x9de3380] Setting entry with key 'sws_param' to value 'flags=2'
[buffer @ 0x9de3380] Setting entry with key 'frame_rate' to value '25/1'
[graph 0 input from stream 0:0 @ 0x9df5840] w:720 h:576 pixfmt:uyvy422
tb:1/1000000 fr:25/1 sar:0/1 sws_param:flags=2
[scale @ 0x9de3a20] Setting 'w' to value '0'
[scale @ 0x9de3a20] Setting 'h' to value '0'
[scale @ 0x9de3a20] Setting 'flags' to value '0x4'
[auto-inserted scaler 0 @ 0x9de3960] w:0 h:0 flags:'0x4' interl:0
[format @ 0x9de34c0] auto-inserting filter 'auto-inserted scaler 0'
between the filter 'Parsed_null_0' and the filter 'format'
[AVFilterGraph @ 0x9dee6e0] query_formats: 4 queried, 3 merged, 1 already
done, 0 delayed
[auto-inserted scaler 0 @ 0x9de3960] w:720 h:576 fmt:uyvy422 sar:0/1 ->
w:720 h:576 fmt:yuv420p sar:0/1 flags:0x4
[mpeg4 @ 0x9df6160] detected 2 logical cores
[mpeg4 @ 0x9df6160] intra_quant_bias = 0 inter_quant_bias = -64
Output #0, avi, to 'test.avi':
Metadata:
ISFT : Lavf55.0.100
Stream #0:0, 0, 1/25: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p,
720x576, 1/25, q=2-31, 1200 kb/s, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> mpeg4)
Press [q] to stop, [?] for help
frame= 13 fps=0.0 q=2.0 size= 212kB time=00:00:00.52
bitrate=3332.2kbits/sframe= 26 fps= 26 q=4.5 size= 322kB
time=00:00:01.04 bitrate=2535.7kbits/sframe= 39 fps= 26 q=5.7 size=
416kB time=00:00:01.56 bitrate=2182.1kbits/sframe= 51 fps= 25 q=4.7
size= 502kB time=00:00:02.04 bitrate=2015.2kbits/sframe= 57 fps= 25
q=4.3 Lsize= 523kB time=00:00:02.28 bitrate=1879.2kbits/s
So I think ffmpeg or stk1160 driver has init wrong. After I set
driver=v4l2:width=720:height=576:norm=PAL:outfmt=uyvy
then it worked.
Best regards.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2410#comment:19>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list