#4795: option to survive Invalid data found when processing input
---+---
Reporter: basinilya | Type: enhancement
Status: new| Priority: normal
Component: ffmpeg | Version: git-master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
---+---
Grabbing /dev/video1. The device driver is not so good: every 5-10 minuts
I get:
{{{
[video4linux2,v4l2 @ 0x557c0960] Dequeued v4l2 buffer contains x
bytes, but y were expected. Flags: 0x0001.
/dev/video1: Invalid data found when processing input
}}}
ffplay continues after such error; ffmpeg dies.
Need an option to ignore the error. It can be a generic input option
(before -i) to tolerate max n errors in a row.
{{{
[il@mar ffmpeg-git]$ while true; do for x in 0 1 2; do v4l2-ctl -d
/dev/video0 -i $x; sleep 4; done; done /dev/null
[1] 1199
[il@mar ffmpeg-git]$ time ./ffmpeg -y -f video4linux2 -standard PAL -i
/dev/video0 -codec h264 -pix_fmt yuv422p -preset veryfast test.mkv
ffmpeg version N-74579-g77c2bd4 Copyright (c) 2000-2015 the FFmpeg
developers
built with gcc 5.2.0 (GCC)
configuration: --prefix=/usr --shlibdir=/usr/lib --pkg-config-
flags=--static --disable-static --disable-stripping --enable-gpl --enable-
gnutls --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-
libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis
--enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
--enable-shared --enable-x11grab
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 58.100 / 56. 58.100
libavformat56. 40.101 / 56. 40.101
libavdevice56. 4.100 / 56. 4.100
libavfilter 5. 36.100 / 5. 36.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc53. 3.100 / 53. 3.100
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 8767.851933, bitrate: 165888 kb/s
Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 720x576,
165888 kb/s, 25 fps, 25 tbr, 1000k tbn, 1000k tbc
[libx264 @ 0x9284000] using cpu capabilities: MMX2 SSE Cache64
[libx264 @ 0x9284000] profile High 4:2:2, level 3.0, 4:2:2 8-bit
[libx264 @ 0x9284000] 264 - core 148 r2579 73ae2d1 - H.264/MPEG-4 AVC
codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options:
cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=2 psy=1
psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1
cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=1
lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0
bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
b_bias=0 direct=1 weightb=1 open_gop=0 weightp=1 keyint=250 keyint_min=25
scenecut=40 intra_refresh=0 rc_lookahead=10 rc=crf mbtree=1 crf=23.0
qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, matroska, to 'test.mkv':
Metadata:
encoder : Lavf56.40.101
Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv422p,
720x576, q=-1--1, 25 fps, 1k tbn, 25 tbc
Metadata:
encoder : Lavc56.58.100 libx264
Stream mapping:
Stream #0:0 - #0:0 (rawvideo (native) - h264 (libx264))
Press [q] to stop, [?] for help
Past duration 0.602974 too large 19926kB time=00:04:02.00 bitrate=
674.5kbits/s
[video4linux2,v4l2 @ 0x9281300] Dequeued v4l2 buffer contains 414720
bytes, but 829440 were expected. Flags: 0x2005.
/dev/video0: Invalid data found when processing input
frame= 8125 fps= 14 q=26.0 Lsize= 49353kB time=00:09:50.56 bitrate=
684.6kbits/s
video:49294kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.121074%
[libx264 @ 0x9284000] frame I:57Avg QP:18.88 size: 22477
[libx264 @ 0x9284000] frame P:6820 Avg QP:22.26 size: 6636
[libx264 @ 0x9284000] frame B:1248 Avg QP:22.55 size: 3158
[libx264 @ 0x9284000] consecutive B-frames: 77.0% 7.3% 0.5% 15.2%
[libx264 @ 0x9284000] mb I I16..4: 26.0% 67.4% 6.6%
[libx264 @ 0x9284000] mb P I16..4: 24.5% 16.5% 0.2% P16..4: 49.3% 3.4%
0.6% 0.0% 0.0%skip: 5.5%
[libx264 @ 0x9284000] mb B I16..4: 1.2% 0.6% 0.0% B16..8: 13.6% 1.0%
0.0% direct:63.2% skip:20.4% L0:51.6% L1:47.3% BI: 1.1%
[libx264 @ 0x9284000] 8x8 transform intra:40.6% inter:71.4%
[libx264 @ 0x9284000] coded y,uvDC,uvAC intra: 19.3% 97.1% 55.7% inter:
1.7% 86.4% 3.8%
[libx264 @ 0x9284000] i16 v,h,dc,p: 58% 23% 15% 4%
[libx264 @ 0x9284000] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 15% 60% 2% 3%
2% 2% 2% 2%
[libx264 @ 0x9284000] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 11% 77% 7% 1% 1%
1% 1% 1% 1%
[libx264 @ 0x9284000] i8c
