Resources for 'Advanced Video Coding on Linux'

“x264—a free h264/avc encoder”: developers.videolan.org/x264.html

“Codec shoot-out 2005—Final”: www.doom9.org/index.html?/codecs-final-105-1.htm

Apple QuickTime: www.apple.com/quicktime

“MPlayer 1.0pre8 released”: www.mplayerhq.hu

AudioCoding.com: www.audiocoding.com

GPAC: Content Authoring with MP4Box: gpac.sourceforge.net/auth_mp4box.php

Movie Trailers: www.apple.com/trailers

“Including QuickTime in a Web Page”: www.apple.com/quicktime/tutorials/embed.html

MPlayer Plugin: Embedded Video Player for Mozilla: mplayerplug-in.sourceforge.net

______________________

Comments

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

Speed-up

Branko Majic's picture

By the way, you can speed-up the audio dumping with this command:
mplayer -vc null -vo null -ao pcm:fast max.dv

Great stuff

Branko Majic's picture

This was some great stuff. I already wanted to use h.264, but I was too lazy to find some documentation on it. I just copied over your code and made a few modifications (I created a nice little bash script). One question, though: can you put any resources as where the documentation for the x264 can be found? Something which explains the possible arguments in a little more detail?

x264 article question

alexandre parenteau's picture

Thanks Dave for this nice article.

I almost immediately tried to apply it to my mythtv box transcoding.

However I run into the problem that QuickTime 7 refuses to open the produced mp4 file, even though mplayer does. All I added was --sar 4:3. I also changed the FPS to 29.97 (MythTV NTSC).

I was curious if someone was successful at getting QuickTime 7 to read the H264 file.

Here is the script I made (python) out of the article:

def transcode_file(src, dst):
os.system('mkfifo test.fifo')
os.system('mplayer -ao pcm:file=test.fifo -vc null -vo null "%s" &' % src)
time.sleep(2)
res = os.system('faac test.fifo -o test.aac')

# video to x264
os.putenv("LD_LIBRARY_PATH", "/usr/local/lib")
res = os.system('mencoder -vf format=i420 -ovc raw -of rawvideo -ofps 29.97 -oac copy -o test.fifo "%s" &' % src)
time.sleep(2)
res = os.system('/usr/local/bin/x264 -o test.mp4 --fps 29.97 --bframes 2 --progress --crf 26 --subme 6 --analyse p8x8,b8x8,i4x4,p4x4 --no-psnr test.fifo --sar 4:3 480x480')

res = os.system('/usr/local/bin/MP4Box -add test.mp4 -add test.aac -fps 29.97 "%s"' % dst)
os.system('rm -rf test.fifo test.aac test.mp4')

On Fedora Core 5 (i386)
x264 and gpac from SVN

Anyway, I was blown away by the quality compared to DivX.

Regards,
alex

White Paper
Linux Management with Red Hat Satellite: Measuring Business Impact and ROI

Linux has become a key foundation for supporting today's rapidly growing IT environments. Linux is being used to deploy business applications and databases, trading on its reputation as a low-cost operating environment. For many IT organizations, Linux is a mainstay for deploying Web servers and has evolved from handling basic file, print, and utility workloads to running mission-critical applications and databases, physically, virtually, and in the cloud. As Linux grows in importance in terms of value to the business, managing Linux environments to high standards of service quality — availability, security, and performance — becomes an essential requirement for business success.

Learn More

Sponsored by Red Hat

White Paper
Private PaaS for the Agile Enterprise

If you already use virtualized infrastructure, you are well on your way to leveraging the power of the cloud. Virtualization offers the promise of limitless resources, but how do you manage that scalability when your DevOps team doesn’t scale? In today’s hypercompetitive markets, fast results can make a difference between leading the pack vs. obsolescence. Organizations need more benefits from cloud computing than just raw resources. They need agility, flexibility, convenience, ROI, and control.

Stackato private Platform-as-a-Service technology from ActiveState extends your private cloud infrastructure by creating a private PaaS to provide on-demand availability, flexibility, control, and ultimately, faster time-to-market for your enterprise.

Learn More

Sponsored by ActiveState