Puppy Linux Discussion Forum

[Icyos]

Hi All

If you want to make videos in Puppy Linux to upload to youtube etc, then just open your terminal and bash the following code in.

#!/bin/sh
var="$(xrandr | grep '*')"
IFS=" "
set -- $var
ffmpeg -f alsa -ac 2 -i hw:0,0 -f x11grab -s $1 -r 25 -i :0.0 -sameq /root/test.avi

FFMPEG will now record your desktop and your Mic + Sound input as well, just use CTRL+C to end the recording.

This will give you a big file of nice quality, I would suggest you use FFConvert to shrink it down to a few megs so you can upload it quicker to youtube.

This means you dont need to install apps like xvdcap or recordmydesktop as you can do it straight from FFMPEG.

[Amgine]

[Amgine]

I tried it, very nice. But I can not view the videos from Puppy, but I can from a different puppy build and my main OS. It does the same for "record my desktop" I am using 5.2.8 004

[Icyos]

Hi Buddy

I dont use the updates and I have no problems I am using 5.28 with no update added, and mplayer plays the original files back no problems at all.

I will add the 004 update and let you know. Thanks for your kind words re me youtube.

[Icyos]

Hi I have upgraded my 5.28 to 004 and my mplayer works just fine so please can you post some screen shots of your issue and I will try to help you resolve it.

[Amgine]

Thank you for the reply..

Here is a quick video.

http://flic.kr/p/bbUhca

[Amgine]

I have decided to re do my USB, I was hoping to know what went wrong but no big deal.

Thank you

Edit:

It works fine now.

[Karl Godt]

I'm excited !

the ffmpeg line runs good on puppy 511 which had ffmpeg 0.5.2 installed without x11grab support .

i have compiled 7.11 and 9.1 with x11grab and can see the screen capture in mplayer . gxine-059 does not want to play .avi videos , but thats it .

will have to check it on Puppy 4 series where i could not get it to work until now .

***

this is the console output of v.7.11 which apparently compiled with a larger amount of warnings than 9.1 :

[Dingo]

I just compiled ffmpeg 0.9.1 in Puppy 3.01 but command is not working. it returns to me this error

[Amgine]

[pemasu]

# ffmpeg -f alsa -ac 2 -i hw:0,0 -f x11grab -s 1000x900 -r 25 -i :0.0 -sameq /root/test2.avi
ffmpeg version 0.9.1.git-5387f99 Copyright (c) 2000-2012 the FFmpeg developers
built on Jan 12 2012 00:48:53 with gcc 4.4.5
configuration: --prefix=/usr --cpu=i686 --enable-libmp3lame --enable-libx264 --enable-libfaac --enable-pthreads --enable-small --enable-postproc --enable-libvorbis --enable-gpl --enable-shared --enable-nonfree --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-debug --enable-bzlib --enable-zlib --enable-libspeex --enable-version3 --enable-runtime-cpudetect --enable-x11grab --enable-libdc1394 --enable-libschroedinger --enable-libtheora --enable-libxvid --enable-swscale --enable-libvpx
libavutil 51. 34.100 / 51. 34.100
libavcodec 53. 54.100 / 53. 54.100
libavformat 53. 29.100 / 53. 29.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 58.100 / 2. 58.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 51. 2.100 / 51. 2.100
[alsa @ 0x8065b20] Estimating duration from bitrate, this may be inaccurate
Input #0, alsa, from 'hw:0,0':
Duration: N/A, start: 1326535071.946597, bitrate: N/A
Stream #0:0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
[x11grab @ 0x8060020] device: :0.0 -> display: :0.0 x: 0 y: 0 width: 1000 height: 900
[x11grab @ 0x8060020] shared memory extension found
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 139 (MIT-SHM)
Minor opcode of failed request: 4 (X_ShmGetImage)
Serial number of failed request: 11
Current serial number in output stream: 11

Second try:
# ffmpeg -f alsa -ac 2 -i hw:0,0 -f x11grab -s 1280x800 -r 25 -i :0.0 -sameq /root/test2.avi
ffmpeg version 0.9.1.git-5387f99 Copyright (c) 2000-2012 the FFmpeg developers

X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 139 (MIT-SHM)
Minor opcode of failed request: 4 (X_ShmGetImage)
Serial number of failed request: 11
Current serial number in output stream: 11

Third try:
# ffmpeg -f alsa -:ac 2 -i hw:0,0 -f x11grab -s 1280x600 -r 25 -i :0.0 -sameq /root/test2.avi
[alsa @ 0x8065b20] Estimating duration from bitrate, this may be inaccurate
Input #0, alsa, from 'hw:0,0':
Duration: N/A, start: 1326535124.738427, bitrate: N/A
Stream #0:0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
[x11grab @ 0x8060020] device: :0.0 -> display: :0.0 x: 0 y: 0 width: 1280 height: 600
[x11grab @ 0x8060020] shared memory extension found
[x11grab @ 0x8060020] Estimating duration from bitrate, this may be inaccurate
Input #1, x11grab, from ':0.0':
Duration: N/A, start: 1326535124.834443, bitrate: 614400 kb/s
Stream #1:0: Video: rawvideo (BGRA / 0x41524742), bgra, 1280x600, 614400 kb/s, 25 tbr, 1000k tbn, 25 tbc
File '/root/test2.avi' already exists. Overwrite ? [y/N] y
Incompatible pixel format 'bgra' for codec 'mpeg4', auto-selecting format 'yuv420p'
[buffer @ 0x8065820] w:1280 h:600 pixfmt:bgra tb:1/1000000 sar:0/1 sws_param:
[buffersink @ 0x806a640] auto-inserting filter 'auto-inserted scale 0' between the filter 'src' and the filter 'out'
[scale @ 0x806aba0] w:1280 h:600 fmt:bgra -> w:1280 h:600 fmt:yuv420p flags:0x4
Output #0, avi, to '/root/test2.avi':
Metadata:
ISFT : Lavf53.29.100
Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 1280x600, q=2-31, 200 kb/s, 25 tbn, 25 tbc
Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, 2 channels, s16, 128 kb/s
Stream mapping:
Stream #1:0 -> #0:0 (rawvideo -> mpeg4)
Stream #0:0 -> #0:1 (pcm_s16le -> libmp3lame)
Press [q] to stop, [?] for help
[alsa @ 0x8065b20] ALSA buffer xrun.
frame= 414 fps= 25 q=0.0 Lsize= 11045kB time=00:00:16.56 bitrate=5463.8kbits/s dup=0 drop=16
video:10942kB audio:65kB global headers:0kB muxing overhead 0.343342%

So...it seems to be dependent of the selected screen resolution.

[pemasu]

# ffmpeg -f alsa -ac 2 -i hw:0,0 -f x11grab -r 30 -s 1366x700 -i :0.0 -aspect 16:9 -vcodec libx264 -threads auto screencast.avi

That works for me with ffmpeg-0.9.1 also. It produces good video quality due to libx264. Of course you need that lib to be installed...and that your ffmpeg has been compiled supporting it.

Output #0, avi, to 'screencast.avi':
Metadata:
ISFT : Lavf53.29.100
Stream #0:0: Video: h264 (H264 / 0x34363248), yuv420p, 1366x700 [SAR 215:236 DAR 29369:16520], q=-1--1, 30 tbn, 30 tbc
Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, 2 channels, s16, 128 kb/s
Stream mapping:
Stream #1:0 -> #0:0 (rawvideo -> libx264)
Stream #0:0 -> #0:1 (pcm_s16le -> libmp3lame)

[Karl Godt]

The commandline has to work , otherwise i get crazy error messages like
#Unable to find a suitable output format for '-f'

Screen resolution not being larger than actual is important as pemasu states .

The configure script autodetects headers in /usr/include .

If no alsa headers , no alsa !

I had the same with BSD kernel headers installed .
/usr/include/dev from it gave

[Karl Godt]

funny thing is ffmpeg recognizes the output format because of the outputfile.extension .

[Karl Godt]

Hmmm . the codeline does not work for me in a script ... ffmpeg seems not to like ' ' spaces but tabs :

This test script works for me , i have also set filetype none in geany