[Ffmpeg-devel] [Ffmpeg-devel-old] Questionaboutinterlaced_frame and top_field_first

[Luca Abeni]

Hi all,

On Mon, 2006-01-30 at 10:17 +0100, Luca Abeni wrote:
[...]
> So, I think raw_decode() should be fixed to copy the fields form
> coded_frame to the decoded frame... Or am I misunderstanding how things
> work?
> 
> BTW, I see that raw_decode() does this:
> static int raw_decode(AVCodecContext *avctx,
>                             void *data, int *data_size,
>                             uint8_t *buf, int buf_size)
> {
>     RawVideoContext *context = avctx->priv_data;
>     int bytesNeeded;
> 
>     AVPicture * picture = (AVPicture *) data;
> [...]
> 
> I think this "AVPicture * picture" should be changed in "AVFrame *",
> right?
> I'll try to patch raw.c in such way, to see if this idea works.
Ok, I did this, and it works. I attach the patch for libavcodec/raw.c

If the patch is accepted and applied, I think libavformat/yuv4mpeg.c
(and maybe other) can be patched to take advantage of it and correctly
set interlaced_frame and top_field_first.

			Thanks,
				Luca
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