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The Slip - Artworks
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
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Sur d’autres sites (4871)
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Can open RTSP camera stream in FFMPEG but not in Gstreamer rtspsrc : Bad Request (400)
6 août 2022, par Joran ApixaI have a Panasonic WV-SW559 camera set up as an RTSP stream.


VLC can perfectly open the RTSP stream and display it, as well as FFMPEG.
However, when I try to set up a simple gstreamer pipeline, it does not want to open.
I execute the following command :


gst-launch-1.0 rtspsrc --gst-debug=rtspsrc:5 location="rtspt://admin:12345@192.168.2.148:554/MediaInput/h264/stream_1" ! fakesink


after which I get the following output :


0:00:00.063009504 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:8617:gst_rtspsrc_uri_set_uri:<rtspsrc0> parsing URI
0:00:00.063074922 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:8624:gst_rtspsrc_uri_set_uri:<rtspsrc0> configuring URI
0:00:00.063111485 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:8640:gst_rtspsrc_uri_set_uri:<rtspsrc0> set uri: rtspt://admin:12345@192.168.2.148:554/MediaInput/h264/stream_1
0:00:00.063136642 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:8642:gst_rtspsrc_uri_set_uri:<rtspsrc0> request uri is: rtsp://192.168.2.148:554/MediaInput/h264/stream_1
Setting pipeline to PAUSED ...
0:00:00.064752828 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:8391:gst_rtspsrc_start:<rtspsrc0> starting
0:00:00.064910956 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:5567:gst_rtspsrc_loop_send_cmd:<rtspsrc0> sending cmd OPEN
0:00:00.064938405 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:5598:gst_rtspsrc_loop_send_cmd:<rtspsrc0> not interrupting busy cmd unknown
Pipeline is live and does not need PREROLL ...
0:00:00.065145962 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:8346:gst_rtspsrc_thread:<rtspsrc0> got command OPEN
0:00:00.065182682 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:4748:gst_rtspsrc_connection_flush:<rtspsrc0> set flushing 0
0:00:00.065214662 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:4614:gst_rtsp_conninfo_connect:<rtspsrc0> creating connection (rtspt://admin:12345@192.168.2.148:554/MediaInput/h264/stream_1)...
Progress: (open) Opening Stream
0:00:00.065652329 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:4625:gst_rtsp_conninfo_connect:<rtspsrc0> sanitized uri rtsp://192.168.2.148:554/MediaInput/h264/stream_1
0:00:00.065710611 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:4659:gst_rtsp_conninfo_connect:<rtspsrc0> connecting (rtspt://admin:12345@192.168.2.148:554/MediaInput/h264/stream_1)...
Progress: (connect) Connecting to rtspt://admin:12345@192.168.2.148:554/MediaInput/h264/stream_1
0:00:00.081446411 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:7342:gst_rtspsrc_retrieve_sdp:<rtspsrc0> create options... (async)
0:00:00.081494537 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:7351:gst_rtspsrc_retrieve_sdp:<rtspsrc0> send options...
0:00:00.081575581 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:476:default_before_send:<rtspsrc0> default handler
Progress: (open) Retrieving server options
0:00:00.081618707 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:476:default_before_send:<rtspsrc0> default handler
0:00:00.081671521 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:5964:gst_rtspsrc_try_send:<rtspsrc0> sending message
0:00:00.088226524 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:5866:gst_rtsp_src_receive_response:<rtspsrc0> received response message
0:00:00.088280901 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:5885:gst_rtsp_src_receive_response:<rtspsrc0> got response message 400
0:00:00.088321370 23339 0x55cd528a30 WARN rtspsrc gstrtspsrc.c:6161:gst_rtspsrc_send:<rtspsrc0> error: Unhandled error
0:00:00.088335798 23339 0x55cd528a30 WARN rtspsrc gstrtspsrc.c:6161:gst_rtspsrc_send:<rtspsrc0> error: Bad Request (400)
0:00:00.088454915 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:7514:gst_rtspsrc_retrieve_sdp:<rtspsrc0> free connection
0:00:00.088526323 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:4715:gst_rtsp_conninfo_close:<rtspsrc0> closing connection...
ERROR: from element /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0: Unhandled error
Additional debug info:
gstrtspsrc.c(6161): gst_rtspsrc_send (): /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0:
Bad Request (400)
ERROR: pipeline doesn't want to preroll.
Setting pipeline to PAUSED ...
0:00:00.088648097 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:4721:gst_rtsp_conninfo_close:<rtspsrc0> freeing connection...
Setting pipeline to READY ...
0:00:00.088699505 23339 0x55cd528a30 WARN rtspsrc gstrtspsrc.c:7548:gst_rtspsrc_open:<rtspsrc0> can't get sdp
0:00:00.088747891 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:8346:gst_rtspsrc_thread:<rtspsrc0> got command LOOP
0:00:00.088786121 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:4748:gst_rtspsrc_connection_flush:<rtspsrc0> set flushing 0
0:00:00.088812372 23339 0x55cd528a30 WARN rtspsrc gstrtspsrc.c:5628:gst_rtspsrc_loop:<rtspsrc0> we are not connected
0:00:00.088832841 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:5636:gst_rtspsrc_loop:<rtspsrc0> pausing task, reason flushing
0:00:00.088855394 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:5567:gst_rtspsrc_loop_send_cmd:<rtspsrc0> sending cmd WAIT
0:00:00.088885863 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:5585:gst_rtspsrc_loop_send_cmd:<rtspsrc0> cancel previous request LOOP
0:00:00.088905135 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:5593:gst_rtspsrc_loop_send_cmd:<rtspsrc0> connection flush busy LOOP
0:00:00.088923000 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:4748:gst_rtspsrc_connection_flush:<rtspsrc0> set flushing 1
0:00:00.088996595 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:5567:gst_rtspsrc_loop_send_cmd:<rtspsrc0> sending cmd CLOSE
0:00:00.089030346 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:5593:gst_rtspsrc_loop_send_cmd:<rtspsrc0> connection flush busy WAIT
0:00:00.089045971 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:4748:gst_rtspsrc_connection_flush:<rtspsrc0> set flushing 1
0:00:00.089085660 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:8346:gst_rtspsrc_thread:<rtspsrc0> got command CLOSE
0:00:00.089109462 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:4748:gst_rtspsrc_connection_flush:<rtspsrc0> set flushing 0
0:00:00.089129619 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:7569:gst_rtspsrc_close:<rtspsrc0> TEARDOWN...
Setting pipeline to NULL ...
0:00:00.089211288 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:7574:gst_rtspsrc_close:<rtspsrc0> not ready, doing cleanup
0:00:00.089263997 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:7637:gst_rtspsrc_close:<rtspsrc0> closing connection...
0:00:00.089300769 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:8422:gst_rtspsrc_stop:<rtspsrc0> stopping
0:00:00.089330926 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:5567:gst_rtspsrc_loop_send_cmd:<rtspsrc0> sending cmd WAIT
0:00:00.089333374 23339 0x55cd528a30 DEBUG rtspsrc gstrtspsrc.c:2058:gst_rtspsrc_cleanup:<rtspsrc0> cleanup
0:00:00.089354260 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:5593:gst_rtspsrc_loop_send_cmd:<rtspsrc0> connection flush busy CLOSE
0:00:00.089419939 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:4748:gst_rtspsrc_connection_flush:<rtspsrc0> set flushing 1
0:00:00.089493430 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:7569:gst_rtspsrc_close:<rtspsrc0> TEARDOWN...
0:00:00.089520931 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:7574:gst_rtspsrc_close:<rtspsrc0> not ready, doing cleanup
0:00:00.089539212 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:7637:gst_rtspsrc_close:<rtspsrc0> closing connection...
0:00:00.089556192 23339 0x55cd6d9180 DEBUG rtspsrc gstrtspsrc.c:2058:gst_rtspsrc_cleanup:<rtspsrc0> cleanup
Freeing pipeline ...
</rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0></rtspsrc0>

Does anyone have an idea on why this could occur ?


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How to fix laggy ffmpeg screen and audio capture ?
26 juillet 2022, par Wh0r00tI am using
ffmpegto capture the screen along with audio.

The
ffmpegcommand that i tried is

ffmpeg -y \
 -f x11grab \
 -framerate 60 \
 -s 1366x768 \
 -i :0.0 \
 -f alsa -i default -ac 2 \
 -r 30 \
 -c:v h264 -crf 0 -preset ultrafast -c:a vorbis -strict experimental \
 "$HOME/Videos/$fname-$(date '+%y%m%d-%H%M-%S').mkv"


The stdout of the
ffmpeghttps://pastebin.com/Qmi5TMKv

ffmpeg version n5.0.1 Copyright (c) 2000-2022 the FFmpeg developers
 built with gcc 12.1.0 (GCC)
 configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libjack --enable-libmfx --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librav1e --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc --enable-shared --enable-version3
 libavutil 57. 17.100 / 57. 17.100
 libavcodec 59. 18.100 / 59. 18.100
 libavformat 59. 16.100 / 59. 16.100
 libavdevice 59. 4.100 / 59. 4.100
 libavfilter 8. 24.100 / 8. 24.100
 libswscale 6. 4.100 / 6. 4.100
 libswresample 4. 3.100 / 4. 3.100
 libpostproc 56. 3.100 / 56. 3.100
[x11grab @ 0x561faf77eb00] Stream #0: not enough frames to estimate rate; consider increasing probesize
Input #0, x11grab, from ':0.0':
 Duration: N/A, start: 1658814267.169414, bitrate: 2014248 kb/s
 Stream #0:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1366x768, 2014248 kb/s, 60 fps, 1000k tbr, 1000k tbn
Guessed Channel Layout for Input Stream #1.0 : stereo
Input #1, alsa, from 'default':
 Duration: N/A, start: 1658814267.230653, bitrate: 1536 kb/s
 Stream #1:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Stream mapping:
 Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
 Stream #1:0 -> #0:1 (pcm_s16le (native) -> vorbis (native))
Press [q] to stop, [?] for help
[libx264 @ 0x561faf7d4300] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX XOP FMA3 BMI1
[libx264 @ 0x561faf7d4300] profile High 4:4:4 Predictive, level 3.2, 4:4:4, 8-bit
[libx264 @ 0x561faf7d4300] 264 - core 164 r3081 19856cc - H.264/MPEG-4 AVC codec - Copyleft 2003-2021 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=0 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=0 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=cqp mbtree=0 qp=0
[alsa @ 0x561faf78a940] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)
Output #0, matroska, to '/home/earth/Videos/-220726-1114-27.mkv':
 Metadata:
 encoder : Lavf59.16.100
 Stream #0:0: Video: h264 (H264 / 0x34363248), yuv444p(tv, progressive), 1366x768, q=2-31, 30 fps, 1k tbn
 Metadata:
 encoder : Lavc59.18.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
 Stream #0:1: Audio: vorbis (oV[0][0] / 0x566F), 48000 Hz, stereo, fltp
 Metadata:
 encoder : Lavc59.18.100 vorbis
[vorbis @ 0x561faf7d5500] Queue input is backward in time0 bitrate=N/A speed= 0x
frame= 153 fps= 31 q=-1.0 Lsize= 2295kB time=00:00:05.06 bitrate=3709.5kbits/s dup=0 drop=150 speed=1.01x
video:2282kB audio:7kB subtitle:0kB other streams:0kB global headers:3kB muxing overhead: 0.281689%
[libx264 @ 0x561faf7d4300] frame I:1 Avg QP: 0.00 size:381729
[libx264 @ 0x561faf7d4300] frame P:152 Avg QP: 0.00 size: 12857
[libx264 @ 0x561faf7d4300] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 0x561faf7d4300] mb P I16..4: 56.3% 0.0% 0.0% P16..4: 0.1% 0.0% 0.0% 0.0% 0.0% skip:43.6%
[libx264 @ 0x561faf7d4300] coded y,u,v intra: 1.6% 1.6% 1.6% inter: 0.2% 0.2% 0.2%
[libx264 @ 0x561faf7d4300] i16 v,h,dc,p: 99% 1% 0% 0%
[libx264 @ 0x561faf7d4300] kb/s:3664.27
Exiting normally, received signal 15.


I am using the preset ultrafast because I read that it helps not to compress the video too much.
The output of the recorded test file using ffmpeg is as below.


(+) Video --vid=1 (h264 1366x768 30.000fps)
 (+) Audio --aid=1 (vorbis 2ch 48000Hz)
AO: [pulse] 48000Hz stereo 2ch float
VO: [gpu] 1366x768 yuv444p
AV: 00:00:03 / 00:00:19 (17%) A-V: 0.000
[mkv] Discarding potentially broken or useless index.
AV: 00:00:14 / 00:00:19 (73%) A-V: 0.000

Exiting... (Quit)


The recording works but there is a audio lag. If I record the same using
simplescreenrecorderwith the same settings like,

audio backend - alsa


source - default


audio codec - vorbis


video codec - h.264


container - matroska


preset - superfast


The
simplescreenrecorderlog https://pastebin.com/83hMMRQF

[PageRecord::StartPage] Starting page ...
[PageRecord::StartPage] Started page.
[PageRecord::StartOutput] Starting output ...
[PageRecord::StartOutput] Output file: /home/earth/Videos/simplescreenrecorder-2022-07-26_11.18.13.mkv
[Muxer::Init] Using format matroska (Matroska).
[Muxer::AddStream] Using codec libx264 (libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10).
[VideoEncoder::PrepareStream] Using pixel format nv12.
[libx264 @ 0x563436cbfd40] using SAR=1/1
[libx264 @ 0x563436cbfd40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX XOP FMA3 BMI1
[libx264 @ 0x563436cbfd40] profile High, level 3.2, 4:2:0, 8-bit
[libx264 @ 0x563436cbfd40] 264 - core 164 r3081 19856cc - H.264/MPEG-4 AVC codec - Copyleft 2003-2021 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x3 me=dia subme=1 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=4 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=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 pb_ratio=1.30 aq=1:1.00
[Muxer::AddStream] Using codec libvorbis (libvorbis).
[BaseEncoder::EncoderThread] Encoder thread started.
[AudioEncoder::PrepareStream] Using sample format f32p.
[BaseEncoder::EncoderThread] Encoder thread started.
[Muxer::MuxerThread] Muxer thread started.
[PageRecord::StartOutput] Started output.
[Synchronizer::SynchronizerThread] Synchronizer thread started.
[PageRecord::StartInput] Starting input ...
[X11Input::Init] Using X11 shared memory.
[X11Input::Init] Detecting screen configuration ...
[X11Input::Init] Screen 0: x1 = 0, y1 = 0, x2 = 1366, y2 = 768
[X11Input::InputThread] Input thread started.
[ALSAInput::InputThread] Using sample format s16.
[PageRecord::StartInput] Started input.
[ALSAInput::InputThread] Input thread started.
[FastResampler::Resample] Resample ratio is 1.0000 (was 0.0000).
[PageRecord::StopOutput] Stopping output ...
[PageRecord::StopOutput] Stopped output.
[PageRecord::StopInput] Stopping input ...
[X11Input::~X11Input] Stopping input thread ...
[X11Input::InputThread] Input thread stopped.
[ALSAInput::~ALSAInput] Stopping input thread ...
[ALSAInput::InputThread] Input thread stopped.
[PageRecord::StopInput] Stopped input.


It works perfectly without any lag whatsoever. The output of the recorded test file using simplescreenrecorder is as below.


(+) Video --vid=1 (h264 1366x768)
 (+) Audio --aid=1 (vorbis 2ch 48000Hz)
AO: [pulse] 48000Hz stereo 2ch float
VO: [gpu] 1366x768 yuv420p
AV: 00:00:01 / 00:00:17 (7%) A-V: 0.000
[mkv] Discarding potentially broken or useless index.
AV: 00:00:08 / 00:00:17 (47%) A-V: 0.000

Exiting... (Quit)


The only difference that I saw between these two recordings is
VO: [gpu] 1366x768 yuv444p
VO: [gpu] 1366x768 yuv420pfor ffmpeg and simplescreenrecorder receptively.
I do not know if this matters but is there something that I could tweak to makeffmpegto capture the screen and audio without any lag.
Like answered here https://unix.stackexchange.com/questions/675436/ffmpeg-recording-slows-down-when-audio-inputs-are-added
I do open pavucontrol but its not much of a help.

The reason that I going with
ffmpegis because I can kill the process usingpidat a particular time using cronjobs.
These are my system information, in case if it helps

System:
 Host: taco Kernel: 5.18.12-arch1-1 arch: x86_64 bits: 64 Desktop: dwm
 v: 6.2 Distro: Arch Linux
Machine:
 Type: Desktop Mobo: Acer model: A75F2-M v: P21-A1 serial: N/A BIOS: Acer
 v: P21-A1 date: 02/07/2014
CPU:
 Info: quad core model: AMD A8-5500B APU with Radeon HD Graphics bits: 64
 type: MT MCP cache: L2: 4 MiB
 Speed (MHz): avg: 1400 min/max: 1400/3200 cores: 1: 1400 2: 1400 3: 1400
 4: 1400
Graphics:
 Device-1: AMD Trinity [Radeon HD 7560D] driver: radeon v: kernel
 Display: server: X.Org v: 21.1.4 driver: X: loaded: modesetting
 gpu: radeon resolution: 1366x768~60Hz
 OpenGL: renderer: AMD ARUBA (DRM 2.50.0 / 5.18.12-arch1-1 LLVM 14.0.6)
 v: 4.3 Mesa 22.1.3
Audio:
 Device-1: AMD FCH Azalia driver: snd_hda_intel
 Sound Server-1: ALSA v: k5.18.12-arch1-1 running: yes
 Sound Server-2: PulseAudio v: 16.1 running: yes
 Sound Server-3: PipeWire v: 0.3.56 running: yes


Any help is much appreciated.


-
DNN OpenCV Python using RSTP always crash after few minutes
1er juillet 2022, par renaldyksDescription :


I want to create a people counter using DNN. The model I'm using is MobileNetSSD. The camera I use is IPCam from Hikvision. Python communicates with IPCam using the RSTP protocol.


The program that I made is good and there are no bugs, when running the sample video the program does its job well. But when I replaced it with IPcam there was an unknown error.


Error :


Sometimes the error is :


[h264 @ 000001949f7adfc0] error while decoding MB 13 4, bytestream -6
[h264 @ 000001949f825ac0] left block unavailable for requested intra4x4 mode -1
[h264 @ 000001949f825ac0] error while decoding MB 0 17, bytestream 762


Sometimes the error does not appear and the program is killed.



Update Error


After revising the code, I caught the error. The error found is


[h264 @ 0000019289b3fa80] error while decoding MB 4 5, bytestream -25


Now I don't know what to do, because the error is not in Google.


Source Code :


Old Code


This is my very earliest code before getting suggestions from the comments field.


import time
import cv2
import numpy as np
import math
import threading

print("Load MobileNeteSSD model")

prototxt = "MobileNetSSD_deploy.prototxt"
model = "MobileNetSSD_deploy.caffemodel"

CLASSES = ["background", "aeroplane", "bicycle", "bird", "boat",
 "bottle", "bus", "car", "cat", "chair", "cow", "diningtable",
 "dog", "horse", "motorbike", "person", "pottedplant", "sheep",
 "sofa", "train", "tvmonitor"]

net = cv2.dnn.readNetFromCaffe(prototxt, model)

pos_line = 0
offset = 50
car = 0
detected = False
check = 0
prev_frame_time = 0


def detect():
 global check, car, detected
 check = 0
 if(detected == False):
 car += 1
 detected = True


def center_object(x, y, w, h):
 cx = x + int(w / 2)
 cy = y + int(h / 2)
 return cx, cy


def process_frame_MobileNetSSD(next_frame):
 global car, check, detected

 rgb = cv2.cvtColor(next_frame, cv2.COLOR_BGR2RGB)
 (H, W) = next_frame.shape[:2]

 blob = cv2.dnn.blobFromImage(next_frame, size=(300, 300), ddepth=cv2.CV_8U)
 net.setInput(blob, scalefactor=1.0/127.5, mean=[127.5, 127.5, 127.5])
 detections = net.forward()

 for i in np.arange(0, detections.shape[2]):
 confidence = detections[0, 0, i, 2]

 if confidence > 0.5:

 idx = int(detections[0, 0, i, 1])
 if CLASSES[idx] != "person":
 continue

 label = CLASSES[idx]

 box = detections[0, 0, i, 3:7] * np.array([W, H, W, H])
 (startX, startY, endX, endY) = box.astype("int")

 center_ob = center_object(startX, startY, endX-startX, endY-startY)
 cv2.circle(next_frame, center_ob, 4, (0, 0, 255), -1)

 if center_ob[0] < (pos_line+offset) and center_ob[0] > (pos_line-offset):
 # car+=1
 detect()

 else:
 check += 1
 if(check >= 5):
 detected = False

 cv2.putText(next_frame, label+' '+str(round(confidence, 2)),
 (startX, startY-10), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 0, 255), 2)
 cv2.rectangle(next_frame, (startX, startY),
 (endX, endY), (0, 255, 0), 3)

 return next_frame


def PersonDetection_UsingMobileNetSSD():
 cap = cv2.VideoCapture()
 cap.open("rtsp://admin:Admin12345@192.168.100.20:554/Streaming/channels/2/")

 global car,pos_line,prev_frame_time

 frame_count = 0

 while True:
 try:
 time.sleep(0.1)
 new_frame_time = time.time()
 fps = int(1/(new_frame_time-prev_frame_time))
 prev_frame_time = new_frame_time

 ret, next_frame = cap.read()
 w_video = cap.get(cv2.CAP_PROP_FRAME_WIDTH)
 h_video = cap.get(cv2.CAP_PROP_FRAME_HEIGHT)
 pos_line = int(h_video/2)-50

 if ret == False: break

 frame_count += 1
 cv2.line(next_frame, (int(h_video/2), 0),
 (int(h_video/2), int(h_video)), (255, 127, 0), 3)
 next_frame = process_frame_MobileNetSSD(next_frame)

 cv2.rectangle(next_frame, (248,22), (342,8), (0,0,0), -1)
 cv2.putText(next_frame, "Counter : "+str(car), (250, 20),
 cv2.FONT_HERSHEY_SIMPLEX, 0.5, (255, 255, 255), 1)
 cv2.putText(next_frame, "FPS : "+str(fps), (0, int(h_video)-10),
 cv2.FONT_HERSHEY_SIMPLEX, 0.5, (255, 255, 255), 1)
 cv2.imshow("Video Original", next_frame)
 # print(car)

 except Exception as e:
 print(str(e))

 if cv2.waitKey(1) & 0xFF == ord('q'): 
 break


 print("/MobileNetSSD Person Detector")


 cap.release()
 cv2.destroyAllWindows()

if __name__ == "__main__":
 t1 = threading.Thread(PersonDetection_UsingMobileNetSSD())
 t1.start()


New Code


I have revised my code and the program still stops taking frames. I just revised the PersonDetection_UsingMobileNetSSD() function. I've also removed the multithreading I was using. The code has been running for about 30 minutes but after a broken frame, the code will never re-execute the program block
if ret == True.

def PersonDetection_UsingMobileNetSSD():
 cap = cv2.VideoCapture()
 cap.open("rtsp://admin:Admin12345@192.168.100.20:554/Streaming/channels/2/")

 global car,pos_line,prev_frame_time

 frame_count = 0

 while True:
 try:
 if cap.isOpened():
 ret, next_frame = cap.read()
 if ret:
 new_frame_time = time.time()
 fps = int(1/(new_frame_time-prev_frame_time))
 prev_frame_time = new_frame_time
 w_video = cap.get(cv2.CAP_PROP_FRAME_WIDTH)
 h_video = cap.get(cv2.CAP_PROP_FRAME_HEIGHT)
 pos_line = int(h_video/2)-50

 # next_frame = cv2.resize(next_frame,(720,480),fx=0,fy=0, interpolation = cv2.INTER_CUBIC)

 if ret == False: break

 frame_count += 1
 cv2.line(next_frame, (int(h_video/2), 0),
 (int(h_video/2), int(h_video)), (255, 127, 0), 3)
 next_frame = process_frame_MobileNetSSD(next_frame)

 cv2.rectangle(next_frame, (248,22), (342,8), (0,0,0), -1)
 cv2.putText(next_frame, "Counter : "+str(car), (250, 20),
 cv2.FONT_HERSHEY_SIMPLEX, 0.5, (255, 255, 255), 1)
 cv2.putText(next_frame, "FPS : "+str(fps), (0, int(h_video)-10),
 cv2.FONT_HERSHEY_SIMPLEX, 0.5, (255, 255, 255), 1)
 cv2.imshow("Video Original", next_frame)
 # print(car)
 else:
 print("Crashed Frame")
 else:
 print("Cap is not open")

 except Exception as e:
 print(str(e))

 if cv2.waitKey(1) & 0xFF == ord('q'): 
 break


 print("/MobileNetSSD Person Detector")


 cap.release()
 cv2.destroyAllWindows()


Requirement :


Hardware : Intel i5-1035G1, RAM 8 GB, NVIDIA GeForce MX330


Software : Python 3.6.2 , OpenCV 4.5.1, Numpy 1.16.0


Question :


- 

- What should i do for fixing this error ?
- What causes this to happen ?






Best Regards,



Thanks


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