Hi Adam
I've configured parseArgs(...) function as you said. And then i've opened
yuv input file in void *videoThrFxn(void *arg)" .
I've disabled some function.
I 've allocated to buffer (for my input yuv file) with Memory_Contigalloc.
Then it gave a cmem error, memorymap error.Shoud i change CMEM?
Should i setup framesize and capturesize values as manuel?
Best Regards..
Hi again,
I've configured parseArgs(...) function as you said. And then i've opened
yuv input file in void *videoThrFxn(void *arg)" .
I've disabled some function.
I 've allocated to buffer (for my input yuv file) with
Memory_Contigalloc. Then it gave a cmem error, memorymap error.Shoudi change
CMEM?
Should i setup framesize and capturesize values as manuel?
Best Regards..
2007/2/21, Adam Dawidziuk <[EMAIL PROTECTED]>:
>
> Aysun Tasyapi wrote:
> > I am trying to give a yuv file(4.2.2) to encode demo instead of using
> > camera.
> >
> > But i don't know what i must change. What must i change in code?
> > If you know Would you help me? Would you explain please?
>
> Easy:
>
> 1. Add new parameter to the command options, e.g. -f | --file
> Edit main.c
> static void parseArgs(...)
> {
> const struct shortOptions -> add "f:" at the beginning/end of the string
> const struct longOptions -> add: {"file", required_argument, NULL,
> 'f'} at the beginning/end of the table (must match with shortOptions
>
> in the switch statement (which checks for valid params add:
> switch(c) {
> case: 'f': (do your yuv file checks here, save the name, etc.)
> }
>
> You can really skip this step and hardcode filename in the source, w/e.
>
> 2. Edit video.c
>
> in "void *videoThrFxn(void *arg)" add the following:
>
> a) open the desired file
> b) in "while (!gblGetQuit()) {" loop find all occurrences to ioctl(..).
> Ioctl is used to exchange buffers with the v4l driver. Comment out these
> sections.
>
> Instead of getting a framebuffer from the driver (first ioctl in while()
> loop) do reading the next frame from file (you've previously opened).
> You should read frames from file to some kind of buffer, which you can
> allocate anywhere before while() loop.
>
> You should also make this frame visible as an input buffer to the
> encoder, you can do this by replacing:
>
> e.frameBuffer = vidBufs[v4l2buf.index].start;
>
> with
>
> e.frameBuffer = your_buffer_with_a_raw_frame;
>
> (NOTE: you can leave ioctl's where they are, and just don't use the
> buffers returned by them, instead use the buffer read from the file,
> w/e)
>
> And that's it. Of course you have to handle end of file conditions, etc.
>
> Best,
>
> --
> Adam Dawidziuk
> Sentivision
>
>
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