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bfi: store palette data in the context

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Store palette data in the codec context, do not assume that the frame
allocated the first time by avctx->get_buffer will be returned again.

This requires to store the palette which comes with the first frame in
the context, and copy it to the following frames.

Fix trac issue #84.

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
This commit is contained in:
Stefano Sabatini 2011-04-25 20:26:15 +02:00
parent 3788a3c0c0
commit ff558d7b01
1 changed files with 4 additions and 0 deletions
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4
libavcodec/bfi.c
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@ -34,6 +34,7 @@ typedef struct BFIContext {
AVCodecContext *avctx;
AVFrame frame;
uint8_t *dst;
uint32_t pal[256];
} BFIContext;
static av_cold int bfi_decode_init(AVCodecContext * avctx)
@ -85,10 +86,13 @@ static int bfi_decode_frame(AVCodecContext * avctx, void *data,
(avctx->extradata[i * 3 + j] >> 4)) << shift;
pal++;
}
memcpy(bfi->pal, bfi->frame.data[1], sizeof(bfi->pal));
bfi->frame.palette_has_changed = 1;
} else {
bfi->frame.pict_type = FF_P_TYPE;
bfi->frame.key_frame = 0;
bfi->frame.palette_has_changed = 0;
memcpy(bfi->frame.data[1], bfi->pal, sizeof(bfi->pal));
}
buf += 4; //Unpacked size, not required.