[FFmpeg-devel] Porting ffmpeg on embedded machine

[김홍규]

Hi,

I'm currently trying to port linphone, which is a voip-phone.
Linphone supports voice and video.
The target board is using PXA270, armv4te.

I have cross compiled it successfully by using lots of combinations of toolchain.
And the voice calling is working great, so far.

But when I try to call with video, the module from ffmpeg is making errors.
The message is exactly the same as something that I come accross when I run ffplay on the board.

Could you let me know what configure option should I use to cross compile.
The following is the configure option that I gave


-----------------------------------
[root at localhost ffmpeg]# ./configure --prefix=$ARM_INSTALL_TREE/usr --arch=armv4l --cross-prefix=arm-linux- --disable-mmx --enable-shared --enable-pthreads
install prefix            /root/armbuild-1.7.1/usr
source path               /root/hope/kuta/ffmpeg
C compiler                arm-linux-gcc
make                      make
.align is power-of-two    yes
ARCH                      armv4l (generic)
big-endian                no
ARMv5TE enabled           yes
ARMv6 enabled             no
IWMMXT enabled            yes
gprof enabled             no
debug symbols             yes
strip symbols             yes
optimize                  yes
static                    yes
shared                    yes
postprocessing support    no
software scaler enabled   no
video hooking             yes
Imlib2 support            no
FreeType support          no
network support           yes
IPv6 support              yes
threading support         pthreads
SDL support               yes
Sun medialib support      no
AVISynth enabled          no
liba52 support            no
liba52 dlopened           no
libamr-nb support         no
libamr-wb support         no
libfaac enabled           no
libfaad enabled           no
faadbin enabled           no
libgsm enabled            no
libmp3lame enabled        no
libnut enabled            no
libogg enabled            no
libtheora enabled         no
libvorbis enabled         no
x264 enabled              no
XviD enabled              no
zlib enabled              yes
License: LGPL
Creating config.mak and config.h...
-----------------------------------


I cannot attach log information from gdb because gdb doesn't work on the target for some reasons.
The following is the execution message.
-----------------------------------
[root at acumen:bin]# ./ffplay /root/armbuild-1.7.1/sample.avi
Value 0.000000 for parameter 'probesize' out of range.
Value 0.000000 for parameter 'muxrate' out of range.
Value 0.000000 for parameter 'packetsize' out of range.
Value 0.000000 for parameter 'fflags' out of range.
      ......................... ( repeating error message )

Value 0.000000 for parameter 'max_partition_order' out of range.
Value 0.000000 for parameter 'timecode_frame_start' out of range.
var: pixclock=63492 pcd=3
var: pixclock=27000 pcd=1
Floating point exception
-----------------------------------

I consider the problem could be the configure option or floating point handling on the board.
I'm not sure and have no idea how to solve it.
I have tried to do it with lots of effort, though.

I just posted here for the first time.
Sorry about the previous mistake.
I hope I won't make many mistake later on.
Please don't disregard this question.
I appreciate all your support

Kim.




-----------------------------------------------
Hi

On Mon, Jun 04, 2007 at 07:40:49AM +0900, Kim Hong-gyu wrote:
> Hello,
> 
> I have cross compiled ffmpeg and ported it on my arm based board.
> Currently, mplayer is working great.
> I have run into a serious problem when I run ffplay.
> The following is the error message.
> 
> ----------------------------------------------
> Value 0.000000 for parameter 'b' out of range.
> Value 0.000000 for parameter 'ab' out of range.
> Value 0.000000 for parameter 'bt' out of range.
> Value 0.000000 for parameter 'flags' out of range.
>                  ......
> ----------------------------------------------
> 
> The same message is repeating over 20 times, just changing the name of the
> parameter.
> I have no idea why the parameter is passing 0.000000.
> 
> My display is specifically 3.5"(240*320), 7"(800*480) TFT-LCD.
> I'm wondering what's the difference between mplayer and ffplay.
> Basically, mplayer is also using ffmpeg library, as far as I know.
> 
> Could you please give me an idea?

yes read bugreports.html

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