[FFmpeg-user] Retry network for a live stream
Andrew Sinclair
ajsinclair at gmail.com
Sat Jun 29 08:46:19 CEST 2013
On 29 June 2013 13:25, Andrew Sinclair <ajsinclair at gmail.com> wrote:
> Does anyone know if there is any inbuilt mechanism to get ffmpeg to retry
> the connection to a server in the case the connection may be dropped for a
> live stream?
>
> I am finding that ffmpeg is still running but the stream has stopped.
>
Here is some more info on where I am seeing things freeze.
./ffmpeg -loglevel debug -re -f v4l2 -r 25 -s 640x480 -i /dev/video0 -b:v
300k -c:v libx264 -g 15 -pix_fmt yuv420p -an -f flv
rtmp://localhost/live/myStream
ffmpeg version git-2013-06-29-53fd1ab Copyright (c) 2000-2013 the FFmpeg
developers
built on Jun 29 2013 15:45:11 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --prefix=/root/ffmpeg_build
--extra-cflags=-I/root/ffmpeg_build/include
--extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin
--extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac
--enable-libmp3lame --enable-nonfree --enable-libx264
libavutil 52. 37.101 / 52. 37.101
libavcodec 55. 17.100 / 55. 17.100
libavformat 55. 10.100 / 55. 10.100
libavdevice 55. 2.100 / 55. 2.100
libavfilter 3. 77.101 / 3. 77.101
libswscale 2. 3.100 / 2. 3.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 3.100 / 52. 3.100
Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging
level) with argument 'debug'.
Reading option '-re' ... matched as option 're' (read input at native frame
rate) with argument '1'.
Reading option '-f' ... matched as option 'f' (force format) with argument
'v4l2'.
Reading option '-r' ... matched as option 'r' (set frame rate (Hz value,
fraction or abbreviation)) with argument '25'.
Reading option '-s' ... matched as option 's' (set frame size (WxH or
abbreviation)) with argument '640x480'.
Reading option '-i' ... matched as input file with argument '/dev/video0'.
Reading option '-b:v' ... matched as option 'b' (video bitrate (please use
-b:v)) with argument '300k'.
Reading option '-c:v' ... matched as option 'c' (codec name) with argument
'libx264'.
Reading option '-g' ... matched as AVOption 'g' with argument '15'.
Reading option '-pix_fmt' ... matched as option 'pix_fmt' (set pixel
format) with argument 'yuv420p'.
Reading option '-an' ... matched as option 'an' (disable audio) with
argument '1'.
Reading option '-f' ... matched as option 'f' (force format) with argument
'flv'.
Reading option 'rtmp://localhost/live/myStream' ... matched as output file.
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 file /dev/video0.
Applying option re (read input at native frame rate) with argument 1.
Applying option f (force format) with argument v4l2.
Applying option r (set frame rate (Hz value, fraction or abbreviation))
with argument 25.
Applying option s (set frame size (WxH or abbreviation)) with argument
640x480.
Successfully parsed a group of options.
Opening an input file: /dev/video0.
[video4linux2,v4l2 @ 0x29e1c00] fd:3 capabilities:84000001
[video4linux2,v4l2 @ 0x29e1c00] Current input_channel: 0, input_name:
Camera 1
[video4linux2,v4l2 @ 0x29e1c00] The V4L2 driver changed the pixel format
from 0x32315559 to 0x56595559
[video4linux2,v4l2 @ 0x29e1c00] Trying to set codec:rawvideo pix_fmt:yuv420p
[video4linux2,v4l2 @ 0x29e1c00] The V4L2 driver changed the pixel format
from 0x32315559 to 0x56595559
[video4linux2,v4l2 @ 0x29e1c00] Trying to set codec:rawvideo pix_fmt:yuv420p
[video4linux2,v4l2 @ 0x29e1c00] The V4L2 driver changed the pixel format
from 0x32315659 to 0x56595559
[video4linux2,v4l2 @ 0x29e1c00] Trying to set codec:rawvideo pix_fmt:yuv422p
[video4linux2,v4l2 @ 0x29e1c00] The V4L2 driver changed the pixel format
from 0x50323234 to 0x56595559
[video4linux2,v4l2 @ 0x29e1c00] Trying to set codec:rawvideo pix_fmt:yuyv422
[video4linux2,v4l2 @ 0x29e1c00] Setting time per frame to 1/25
[video4linux2,v4l2 @ 0x29e1c00] The driver changed the time per frame from
1/25 to 1/24
[video4linux2,v4l2 @ 0x29e1c00] All info found
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 3110.592899, bitrate: 117964 kb/s
Stream #0:0, 1, 1/1000000: Video: rawvideo (YUY2 / 0x32595559),
yuyv422, 640x480, 1/1000000, 117964 kb/s, 24 fps, 24 tbr, 1000k tbn, 1000k
tbc
Successfully opened the file.
Parsing a group of options: output file rtmp://localhost/live/myStream.
Applying option b:v (video bitrate (please use -b:v)) with argument 300k.
Applying option c:v (codec name) with argument libx264.
Applying option pix_fmt (set pixel format) with argument yuv420p.
Applying option an (disable audio) with argument 1.
Applying option f (force format) with argument flv.
Successfully parsed a group of options.
Opening an output file: rtmp://localhost/live/myStream.
[rtmp @ 0x29e7480] Handshaking...
[rtmp @ 0x29e7480] Type answer 3
[rtmp @ 0x29e7480] Server version 3.0.1.1
[rtmp @ 0x29e7480] Proto = rtmp, path = /live/myStream, app = live, fname =
myStream
[rtmp @ 0x29e7480] Server bandwidth = 2500000
[rtmp @ 0x29e7480] Client bandwidth = 2500000
[rtmp @ 0x29e7480] New incoming chunk size = 4096
[rtmp @ 0x29e7480] Releasing stream...
[rtmp @ 0x29e7480] FCPublish stream...
[rtmp @ 0x29e7480] Creating stream...
[rtmp @ 0x29e7480] Sending publish command for 'myStream'
Successfully opened the file.
detected 2 logical cores
[graph 0 input from stream 0:0 @ 0x29cb4a0] Setting 'video_size' to value
'640x480'
[graph 0 input from stream 0:0 @ 0x29cb4a0] Setting 'pix_fmt' to value '1'
[graph 0 input from stream 0:0 @ 0x29cb4a0] Setting 'time_base' to value
'1/25'
[graph 0 input from stream 0:0 @ 0x29cb4a0] Setting 'pixel_aspect' to value
'0/1'
[graph 0 input from stream 0:0 @ 0x29cb4a0] Setting 'sws_param' to value
'flags=2'
[graph 0 input from stream 0:0 @ 0x29cb4a0] Setting 'frame_rate' to value
'25/1'
[graph 0 input from stream 0:0 @ 0x29cb4a0] w:640 h:480 pixfmt:yuyv422
tb:1/25 fr:25/1 sar:0/1 sws_param:flags=2
[force CFR for input from stream 0:0 @ 0x29cd820] Setting 'expr' to value
'N'
[format @ 0x29cdd20] compat: called with args=[yuv420p]
[format @ 0x29cdd20] Setting 'pix_fmts' to value 'yuv420p'
[auto-inserted scaler 0 @ 0x29cd6a0] Setting 'flags' to value '0x4'
[auto-inserted scaler 0 @ 0x29cd6a0] w:iw h:ih flags:'0x4' interl:0
[format @ 0x29cdd20] auto-inserting filter 'auto-inserted scaler 0' between
the filter 'Parsed_null_0' and the filter 'format'
[AVFilterGraph @ 0x29d2760] query_formats: 5 queried, 4 merged, 1 already
done, 0 delayed
[graph 0 input from stream 0:0 @ 0x29cb4a0] TB:0.040000
FRAME_RATE:25.000000 SAMPLE_RATE:nan
[auto-inserted scaler 0 @ 0x29cd6a0] w:640 h:480 fmt:yuyv422 sar:0/1 ->
w:640 h:480 fmt:yuv420p sar:0/1 flags:0x4
[libx264 @ 0x29e4660] using mv_range_thread = 72
[libx264 @ 0x29e4660] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64
SlowShuffle
[libx264 @ 0x29e4660] profile High, level 3.0
[libx264 @ 0x29e4660] 264 - core 133 r2 a3ac64b - H.264/MPEG-4 AVC codec -
Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1
ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00
mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11
fast_pskip=1 chroma_qp_offset=-2 threads=3 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=2 keyint=15 keyint_min=1 scenecut=40
intra_refresh=0 rc_lookahead=15 rc=abr mbtree=1 bitrate=300 ratetol=1.0
qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, flv, to 'rtmp://localhost/live/myStream':
Metadata:
encoder : Lavf55.10.100
Stream #0:0, 0, 1/1000: Video: h264 (libx264) ([7][0][0][0] / 0x0007),
yuv420p, 640x480, 1/25, q=-1--1, 300 kb/s, 1k tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> libx264)
Press [q] to stop, [?] for help
Debug log when it freezes
[libx264 @ 0x2cfb660] frame=32434 QP=42.00 NAL=0 Slice:B Poc:6 I:0 P:5
SKIP:1195 size=24 bytes
[force CFR for input from stream 0:0 @ 0x2ce4820] N:32457 PTS:1811107902
T:72444316.080000 POS:nan INTERLACED:0 -> PTS:32457 T:1298.280000
[libx264 @ 0x2cfb660] frame=32435 QP=38.00 NAL=2 Slice:P Poc:16 I:0
P:28 SKIP:1172 size=69 bytes
N:32458 PTS:1810768383 T:72430735.320000 POS:nan INTERLACED:0 -> PTS:32458
T:1298.320000
[libx264 @ 0x2cfb660] frame=32436 QP=40.00 NAL=2 Slice:B Poc:12 I:0 P:8
SKIP:1192 size=30 bytes
[force CFR for input from stream 0:0 @ 0x2ce4820] N:32459 PTS:1810851735
T:72434069.400000 POS:nan INTERLACED:0 -> PTS:32459 T:1298.360000
[libx264 @ 0x2cfb660] frame=32437 QP=42.00 NAL=0 Slice:B Poc:10 I:0 P:5
SKIP:1195 size=23 bytes
[force CFR for input from stream 0:0 @ 0x2ce4820] N:32460 PTS:1810893410
T:72435736.400000 POS:nan INTERLACED:0 -> PTS:32460 T:1298.400000
[libx264 @ 0x2cfb660] frame=32438 QP=42.00 NAL=0 Slice:B Poc:14 I:0 P:1
SKIP:1199 size=20 bytes
[force CFR for input from stream 0:0 @ 0x2ce4820] N:32461 PTS:1811186985
T:72447479.400000 POS:nan INTERLACED:0 -> PTS:32461 T:1298.440000
[libx264 @ 0x2cfb660] frame=32439 QP=39.00 NAL=2 Slice:P Poc:24 I:0 P:6
SKIP:1194 size=36 bytes
[force CFR for input from stream 0:0 @ 0x2ce4820] N:32462 PTS:1811355305
T:72454212.200000 POS:nan INTERLACED:0 -> PTS:32462 T:1298.480000
[libx264 @ 0x2cfb660] frame=32440 QP=41.00 NAL=2 Slice:B Poc:20 I:0 P:3
SKIP:1197 size=24 bytes
[force CFR for input from stream 0:0 @ 0x2ce4820] N:32463 PTS:1811399399
T:72455975.960000 POS:nan INTERLACED:0 -> PTS:32463 T:1298.520000
[libx264 @ 0x2cfb660] frame=32441 QP=42.00 NAL=0 Slice:B Poc:18 I:0 P:2
SKIP:1198 size=20 bytes
[force CFR for input from stream 0:0 @ 0x2ce4820] N:32464 PTS:1811522228
T:72460889.120000 POS:nan INTERLACED:0 -> PTS:32464 T:1298.560000
[libx264 @ 0x2cfb660] frame=32442 QP=42.00 NAL=0 Slice:B Poc:22 I:0 P:1
SKIP:1199 size=20 bytes
N:32465 PTS:1811564322 T:72462572.880000 POS:nan INTERLACED:0 -> PTS:32465
T:1298.600000
[libx264 @ 0x2cfb660] frame=32443 QP=40.00 NAL=2 Slice:P Poc:28 I:0 P:0
SKIP:1200 size=26 bytes
[force CFR for input from stream 0:0 @ 0x2ce4820] N:32466 PTS:1811688324
T:72467532.960000 POS:nan INTERLACED:0 -> PTS:32466 T:1298.640000
[libx264 @ 0x2cfb660] frame=32444 QP=42.00 NAL=0 Slice:B Poc:26 I:0 P:2
SKIP:1198 size=21 bytes
[force CFR for input from stream 0:0 @ 0x2ce4820] N:32467 PTS:1825268493
T:73010739.720000 POS:nan INTERLACED:0 -> PTS:32467 T:1298.680000
[libx264 @ 0x2cfb660] frame=32445 QP=36.61 NAL=3 Slice:I Poc:0 I:1200 P:0
SKIP:0 size=20933 bytes
frame=32468 fps= 18 q=44.0 size= 49134kB time=00:21:37.76 bitrate=
310.2kbits/s
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