kdenlive no audio

[golson765]

I am trying to create a video using kdenlive (have been reading posts on
Doug08 thread), and I am having a similar problem. I recorded some video
with a camcorder, mpg format, and brought it into kdenlive. When trying
to play the video, I get no audio.

Here are my packages:

george@tribaltrekker:~> rpm -qa | grep ffmpeg
gstreamer-0_10-plugins-ffmpeg-0.10.13-2000.5.x86_64
ffmpeg-1.1-2.2.x86_64
george@tribaltrekker:~> rpm -qa | grep mlt
libmlt++3-0.8.6-5.5.x86_64
libmlt5-0.8.6-5.5.x86_64
libmlt5-modules-0.8.6-5.5.x86_64
libmlt5-data-0.8.6-5.5.noarch

Also, here is the terminal output when I run kdenlive from a konsole and
hit the play button:

george@tribaltrekker:~ae]1;tribaltrekkerageorge@tribaltrekker:~> kdenlive
No LADSPA plugins were found!

Check your LADSPA_PATH environment variable.
QWidget::insertAction: Attempt to insert null action
QWidget::insertAction: Attempt to insert null action
kdenlive(15377) Render::checkMaxThreads: // TRACTOR PROBLEM
e[0;39me[0me[0;35m[mp3 @ 0x7fbdf85dd220] e[0me[0;33mmax_analyze_duration
5000000 reached at 5015510
e[0me[0;39me[0me[0;35m[mp3 @ 0x7fbdf85dd220] e[0me[0;33mEstimating
duration from bitrate, this may be inaccurate
e[0me[0;39me[0me[0;35m[mp3 @ 0x7fbdf85e34e0]
e[0me[0;33mmax_analyze_duration 5000000 reached at 5015510
e[0me[0;39me[0me[0;35m[mp3 @ 0x7fbdf85e34e0] e[0me[0;33mEstimating
duration from bitrate, this may be inaccurate
e[0me[0;39me[0me[0;36m[mpeg2video @ 0x7fbdf002bc00] e[0me[1;31mwarning:
first frame is no keyframe
e[0me[0;39me[0me[0;35m[mp3 @ 0x1f62380] e[0me[0;33mmax_analyze_duration
5000000 reached at 5015510
e[0me[0;39me[0me[0;35m[mp3 @ 0x1f62380] e[0me[0;33mEstimating duration
from bitrate, this may be inaccurate
e[0me[0;39me[0me[0;35m[mp3 @ 0x1f516e0] e[0me[0;33mmax_analyze_duration
5000000 reached at 5015510
e[0me[0;39me[0me[0;35m[mp3 @ 0x1f516e0] e[0me[0;33mEstimating duration
from bitrate, this may be inaccurate
e[0me[0;39me[0me[0;35m[mp3 @ 0x7fbdf0008a00]
e[0me[0;33mmax_analyze_duration 5000000 reached at 5015510
e[0me[0;39me[0me[0;35m[mp3 @ 0x7fbdf0008a00] e[0me[0;33mEstimating
duration from bitrate, this may be inaccurate
e[0me[0;39me[0me[0;35m[mp3 @ 0x7fbdf002b600]
e[0me[0;33mmax_analyze_duration 5000000 reached at 5015510
e[0me[0;39me[0me[0;35m[mp3 @ 0x7fbdf002b600] e[0me[0;33mEstimating
duration from bitrate, this may be inaccurate
e[0me[0;39me[0me[0;39m[audioresample @ 0x7fbddc000f60] e[0me[1;31mAudio
sample format conversion failed
e[0me[0;39me[0me[0;39m[audioresample @ 0x7fbddc000f60] e[0me[1;31mAudio
sample format conversion failed
e[0me[0;39me[0me[0;39m[audioresample @ 0x7fbddc000f60] e[0me[1;31mAudio
sample format conversion failed
e[0me[0;39me[0me[0;39m[audioresample @ 0x7fbddc000f60] e[0me[1;31mAudio
sample format conversion failed
e[0me[0;39me[0me[0;39m[audioresample @ 0x7fbddc000f60] e0me1;31mAudio
sample format conversion failed

Any help would be greatly appreciated, as I have been tasked with
creating this video in the next couple of days and I know little to
nothing about video processing.

I did see in the other thread a suggestion to downgrade to ffmpeg 1.0.1,
but that package is not in my current repositories, as I try and stay up
to date. Only the latest one is in the list from packman that I saw, and
I am not familiar with downgrading. I saw that Doug compiled from
source, and I don’t really know how to compile from source.

Thanks in advance for your help.

–
G.O.
Box #1: 12.2 | KDE 4.9.2 | AMD Phenom IIX4 | 64 | 16GB
Box #2: 12.2 | KDE 4.9.1 | AMD Athlon X3 | 64 | 4GB
Laptop: 12.2 | KDE 4.9.2 | Core i7-2620M | 64 | 8GB
learning openSUSE and loving it

[oldcpu]

For 'other’s watching this thread, the ‘Doug08’ thread being referred to is here: https://forums.opensuse.org/english/get-technical-help-here/applications/482465-kdenlive-problem-audio-rendered-avi-mp4-videos.html

I have no solutions myself, but I do note that the Packman packager of kdenlive is aware of the problem and is looking for a solution. Presumeably once that solution is found, there will be updates on the Packman site.

[oldcpu]

@oldcpu

For 'other’s watching this thread, the ‘Doug08’ thread being referred to is here: https://forums.opensuse.org/english/get-technical-help-here/applications/482465-kdenlive-problem-audio-rendered-avi-mp4-videos.html

I have no solutions myself, but I do note that the Packman packager of kdenlive is aware of the problem and is looking for a solution. Presumeably once that solution is found, there will be updates on the Packman site.

ffmpeg has been rolled back by Packman packagers and mlt/melt and kdenlive updated to work with that version. Has anyone tried kdenlive now with this update in place ?

[golson765]

On 01/25/2013 02:46 PM, oldcpu wrote:
> oldcpu;2520145 Wrote:
>> For 'other’s watching this thread, the ‘Doug08’ thread being referred to
>> is here: http://tinyurl.com/adsp52w
>>
>> I have no solutions myself, but I do note that the Packman packager of
>> kdenlive is aware of the problem and is looking for a solution.
>> Presumeably once that solution is found, there will be updates on the
>> Packman site.
> ffmpeg has been rolled back by Packman packagers and mlt/melt and
> kdenlive updated to work with that version. Has anyone tried kdenlive
> now with this update in place ?
>
>
I ran it just now and was able to bring in a videoclip, hear the sound
in the preview, render to file (dv format only) several clips together
and it worked.

Here is the command line output from bringing in a single video clip and
rendering it to a dv video:

> kdenlive
No LADSPA plugins were found!

Check your LADSPA_PATH environment variable.
QWidget::insertAction: Attempt to insert null action
QWidget::insertAction: Attempt to insert null action
[mpeg2video @ 0x7fa4a8268a00] warning: first frame is no keyframe
kdenlive(10785) Render::checkMaxThreads: // TRACTOR PROBLEM
[mpeg2video @ 0x7fa4a8268200] warning: first frame is no keyframe
[swscaler @ 0x7fa4a8008a20] Warning: data is not aligned! This can lead
to a speedloss
[mpeg2video @ 0x7fa4ac0023c0] warning: first frame is no keyframe
kdenlive(10785) KSambaSharePrivate::testparmParamValue: We got some
errors while running testparm "Load smb config files from
/etc/samba/smb.conf
Loaded services file OK.
ERROR: pid directory /var/run/samba does not exist
"
//STARTING RENDERING:  true , false , "/usr/bin/melt5" , "dv_ntsc_wide"
, "libdv" , "-" , "/tmp/kde-george/kdenlived10785.mlt" ,
"/home/george/Videos/2012/Abby Soccer/soccertestraw.dv" , () ,
("threads=1", "real_time=-1") , -1 , -1
Started render process:  "/usr/bin/melt5"
"/tmp/kde-george/kdenlived10785.mlt -profile dv_ntsc_wide -consumer
libdv:/home/george/Videos/2012/Abby Soccer/soccertestraw.dv progress=1
threads=1 real_time=-1"
Rendering of  "/home/george/Videos/2012/Abby Soccer/soccertestraw.dv"
finished

I don’t know what LADSPA plugins are, and I also noticed that every
codec is unsupported except dv. So I still have to use ffmpeg to convert
to a smaller size file, and I am working on figuring out how to use
avidemux.

–
G.O.
Box #1: 12.2 | KDE 4.9.2 | AMD Phenom IIX4 | 64 | 16GB
Box #2: 12.2 | KDE 4.9.1 | AMD Athlon X3 | 64 | 4GB
Laptop: 12.2 | KDE 4.9.2 | Core i7-2620M | 64 | 8GB
learning openSUSE and loving it

[oldcpu]

@golson765

I still have to use ffmpeg to convert
to a smaller size file, and I am working on figuring out how to use
avidemux.

As noted in this thread I use handbrake a lot to re-encode videos. Here is my quote from the other thread … (and I recommend you try handbrake) :

@oldcpu

… handbrake is a viable option.

I re-encode MANY of my videos for display on my Asus Transformer Tablet (which is currently only running ICS (android-4.0.4)) and also for my Zopo ZP-500+ android smart phone. I use custom settings in Handbrake which are noted here: [GUIDE] 720p Handbrake preset for TF101 (HC3.1 Update) - xda-developers]([GUIDE] 720p Handbrake preset for TF101 (HC3.1 Update) | XDA Forums)I think the example for an MS-Windows version of Handbrake, but the same settings can be applied in the GNU/Linux handbrake version.

… I find those ‘transformer’ settings work well in my Smart phone.

I find Handbrake reasonably quick in its encoding, and the resultant encoded file size not excessively large.

If all you intend to do is re-encode, and not retune the video brightness, size or other aspect, then IMHO you are far better using handbrake than avidemux for this task.