No video in 2.16

WebPageTest Private Instances
1

Hi all,

I am using WPT 2.16 and trying to get URL capture. My understanding is that the video rendering is server-side and I have enableVideo=1 configured in setttings.ini

After running the install check, it is reported that no test agents are configured for video. I am currently use wptdriver only. Do I need to still configure urlblast even in video processing was moved to the server in 2.16? Or am I misinterpreting something. I am not sure where to look. Many thanks to anyone that can offer guidance. Result of /install is as follows:

WebPagetest 2.16 Installation Check
PHP

PHP version at least 5.3: 5.3.10-1ubuntu3.15
GD Module Installed: yes
FreeType enabled for GD (required for video rendering): yes
zip Module Installed: yes
zlib Module Installed: yes
curl Module Installed: yes
php.ini allow_url_fopen enabled: yes
APC Installed: yes
SQLite Installed (for editable test labels): yes
php.ini upload_max_filesize > 10MB: 10M
php.ini post_max_size > 10MB: 10M
php.ini memory_limit > 256MB or -1 (disabled): -1

System Utilities

ffmpeg Installed (required for video): yes
ffmpeg Installed with scale and decimate filters(required for mobile video): Not Detected,scale (optional)
imagemagick compare Installed (required for mobile video): yes
jpegtran Installed (required for JPEG Analysis): yes
exiftool Installed (required for JPEG Analysis): yes

Filesystem

{docroot}/tmp writable: yes
{docroot}/dat writable: yes
{docroot}/results writable: yes
{docroot}/work/jobs writable: yes
{docroot}/work/video writable: yes
{docroot}/logs writable: yes
{docroot}/tmp on tmpfs: NO (optional)

Test Locations

No test agents are configured to render video


Home : Home
    Home-WPTDriver : Home Office - 1 agents connected
2

What happens when you actually try to create a video in a test?

My install of 2.16 renders video ok

Only difference with your install is

ffmpeg Installed with scale and decimate filters(required for mobile video): 1.2.6-7:1.2.6-1~trusty1,scale,decimate

Mine also shows “No Test Agents are Configured to Render Video” but I’m pretty sure this message was removed after 2.16 was released

3

I think I got it working. That was the clue.

So, here’s the way I think it works. First, the “No test agents are configured to render video” messages is still there in 2.16. I added an agent for that through URLBlast, but still could not get video.

I could not get far enough into the code, but I am guessing that the server-side rendering engine that was used for mobile is now used for all video(?) Therefore, if ffmpg is not configured ALONG WITH the appropriate filters, it will not work. It’s a guess.

Anyway, on the same machine (Ubuntu 12.04), I rebuilt ffmpeg. After that, /install shows the following:

WebPagetest 2.16 Installation Check

PHP

PHP version at least 5.3: 5.3.10-1ubuntu3.15
GD Module Installed: yes
FreeType enabled for GD (required for video rendering): yes
zip Module Installed: yes
zlib Module Installed: yes
curl Module Installed: yes
php.ini allow_url_fopen enabled: yes
APC Installed: yes
SQLite Installed (for editable test labels): yes
php.ini upload_max_filesize > 10MB: 10M
php.ini post_max_size > 10MB: 10M
php.ini memory_limit > 256MB or -1 (disabled): -1
System Utilities

ffmpeg Installed (required for video): yes
ffmpeg Installed with scale and decimate filters(required for mobile video): git-2015-02-10-8d5a850,mpdecimate (optional)
imagemagick compare Installed (required for mobile video): yes
jpegtran Installed (required for JPEG Analysis): yes
exiftool Installed (required for JPEG Analysis): yes
Filesystem

{docroot}/tmp writable: yes
{docroot}/dat writable: yes
{docroot}/results writable: yes
{docroot}/work/jobs writable: yes
{docroot}/work/video writable: yes
{docroot}/logs writable: yes
{docroot}/tmp on tmpfs: NO (optional)
Test Locations

Video rendering is supported

Home : Home
Home-WPTDriver : Home Office - 1 agents connected
Home-URLBlast : Home Office - IE 8 - 1 agents connected

Note the change:

ffmpeg Installed with scale and decimate filters(required for mobile video): git-2015-02-10-8d5a850,mpdecimate (optional)

After this, I re-ran some of the same tests are the video is working well. I have not fully walked through the functionality, but so far, so good.

Thanks for the help!

4

It looks like the issue is that the ffmpeg that comes with Ubuntu normally does not have lib x264 compiled-in and that is needed for server-side rendering. I have added a check for that post-2.16 which will hopefully help in tracking down the issue.