Hi,
thanks much, it was an inspiration. I've finally managed to compile it
for ARM9tdmi using yagarto,
with stripped functionality libraries are ~1.3 MB, when compiled with
-Os, it is approx. half size.
contains only several encoders and one muxer, and it seems that it
actually works :). (fo far
I didn't have time to try encode something, but avcodec_register_all()
and avcodec_init() works ok)
I've someone is interested how to do it, just drop me en email, it is
rather large to post here.
Dne 23.12.2010 21:37, Eli Konky napsal(a):
Hi Jan,
I posted this before but it seems the message was too large for this list.
Here is the original post:
I'm not sure how helpful this will be for you since I'm using android's
proprietary build system called ndk-build. It handles most of the cpu and
machine stuff internally. Plus, I didn't use the configure script. I
modified the config.h manually - which I'm sure is not the right way to go.
Again, not sure it will help you. It is a bit of a mess. If you can build
using configure your life will probably be easier.
I'll send the config.h in email.
On Thu, Dec 23, 2010 at 9:35 AM, Jan Pěkník<[email protected]> wrote:
Dne 23.12.2010 0:17, Eli Konky napsal(a):
On Wed, Dec 22, 2010 at 9:18 PM, Benjamin Larsson<[email protected]>
wrote:
On 12/22/2010 07:53 PM, Jan Pěkník wrote:
Hello,
I need to implement 3GP encoding on embedded ARM based system (with
proprietary OS), after
some research I've decided to try it with ffmpeg. The task is only to
create
.3gp or .mp4 file from input of series of images (raw pixel data) and
audio track (raw 22050hz data also),
no decoding, playback, or any other functionality is needed. Performance
is not an issue, as encoding
will not be performed realtime. The problem is, I probably cannot afford
to build whole ffmpeg and link it,
as there would be too much overhead ( I can probably afford 1MB library
added, but not much more).
Could please someone give me any hints what would be the best approach?
best regards,
jpeknik
Look what configure has to offer with regard to what features you need
to be included in the libs.
MvH
Benjamin Larsson
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FYI, For an android project I'm doing I managed to compile ffmpeg for
arm
(neon) with approx what you need and got to 2,558,524.
It includes avutil, avcodec and avformat.
It excludes swscale, which you might need - but it is rather lite.
As mentioned above there are corresponding "configure" flags to enable
disable them but I also carefully removed c files from the make file to
shorten the build process. I'm not sure if it reduced the size of the
binary
though.
Could you please send configure flags you've used? It would be very
helpful, I'm a bit lost especially on target cpu and whether
to specify --host an use cross compiling, as I'm planning to compile it
with WinARM cross compiler
thath should automatically produce arm libs/binaries. My target is arm9
CPUs and better.
thanks
Jan
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