Grand IP Cam III with NetcamContentAuthPatch

Question

Hi. I've got Grand IP Cam III, and I want to work it with Motion. When I use /video.cgi source I'm still getting error like:

[1] Not a JPEG file: starts with 0x0d 0x0a 
[1] libjpeg decompression failure on first frame - giving up! 

I've got SVN version with NetcamContentAuthPatch.diff from bottom of this site. What is wrong? Sorry for my english

My config:
# Minimal motion example config file provided by the
# Debian motion package - for basic webcam operation.
#
# You most certainly want to investigate
# /usr/share/doc/motion/examples/motion-dist.conf.gz
# for further configuration options. Also, refer to the
# motion man page and /usr/share/doc/motion/motion_guide.html
# for detailed information on configuration options.

daemon off
quiet off

# You may very well need to change this (check with 'dmesg'
# after plugging in your webcam).

netcam_url http://192.168.1.100/video.cgi
netcam_userpass user:pass

# Image size in pixels (valid range is camera dependent).
width 640
height 480

framerate 10
quality 85
auto_brightness off

# General threshold level and noise threshold
# level (for distinguishing between noise and motion).
threshold 4500
noise_level 64

# Encode movies in real-time (install ffmpeg before enabling).
ffmpeg_cap_new on

# Codec to be used by ffmpeg for the video compression.
# Supported formats: mpeg4, msmpeg4.
ffmpeg_video_codec msmpeg4

# Target base directory for pictures and films (you may need
# to change this (or change its permissions) depending on
# which system user runs motion).
target_dir /home/transket/.motion

# Define a port number (e.g. 8000) to enable the mini-http server.
# 0 = disabled.
webcam_port 8000

# Set to 'off' to allow anybody (not just localhost) to view the
# webcam via the mini-http server (http://hostname:port).
webcam_localhost off

webcam_quality 70
webcam_maxrate 10

Error log:
[0] Processing thread 0 - config file /home/transket/.motion/motion.conf
[0] Thread 1 is from /home/transket/.motion/motion.conf
[1] Thread started
[1] entered netcam_start()
[1] Camera thread starting...
[1] Received first header
[1] Received first header
[1] Streaming camera
[1] Boundary string [--myboundary]
[1] Found image header record
[1] expanding buffer from 0 to 4096 bytes
[1] expanding buffer from 4096 to 8192 bytes
[1] expanding buffer from 8192 to 12288 bytes
[1] Not a JPEG file: starts with 0x0d 0x0a
[1] libjpeg decompression failure on first frame - giving up!
[1] Could not fetch initial image from network camera
[1] Motion continues using width and height from config file(s)
[1] Started stream webcam server in port 8000
[1] vid_return_code 2
[1] vid_return_code 2
[1] vid_return_code 2
[1] vid_return_code 2
[1] vid_return_code 2
[1] vid_return_code 2
[1] vid_return_code 2
...
[1] vid_return_code 2
[1] Retrying until successful initial connection with network camera
[1] entered netcam_start()
[1] Camera thread starting...
[1] Received first header
[1] Received first header
[1] Streaming camera
[1] Boundary string [--myboundary]
[1] Found image header record
[1] expanding buffer from 0 to 4096 bytes
[1] expanding buffer from 4096 to 8192 bytes
[1] expanding buffer from 8192 to 12288 bytes
[1] Not a JPEG file: starts with 0x0d 0x0a
[1] libjpeg decompression failure on first frame - giving up!

Environment

Motion version:	SVN 182
ffmpeg version:
Libraries:	ffmpeg, mysql, libjpeg
Server OS:	Ubuntu 7.04, kernel 2.6.20

-- MateuszKnapik - 13 Jun 2007

Follow Up

First that patch is have been not revised , but seems that worked for people .

Did you apply correctly the patch and after recompile motion ?

 patch < NetcamContentAuthPatch.diff
 make clean ; ./configure ; make 
 

If you did that correctly , maybe you can use MjpegSniffer and post the capture in NetcamMjpegStreamDumps

Good luck !

-- AngelCarpintero - 14 Jun 2007

Answer

Closed , not feedback .

According to http://www.lavrsen.dk/twiki/bin/view/Motion/NetcamContentAuthPatch

Issue was a buggy firmware so no patch needed.

-- AngelCarpintero - 15 Jun 2008