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pictordec: fill any unset portion of the image

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Fixes ticket #1710

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Peter Ross 2012-11-10 10:31:14 +11:00 committed by Michael Niedermayer
parent 49c2f2d57e
commit 8b67ec77f0
1 changed files with 11 additions and 2 deletions
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13
libavcodec/pictordec.c
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@ -111,7 +111,7 @@ static int decode_frame(AVCodecContext *avctx,
PicContext *s = avctx->priv_data;
uint32_t *palette;
int bits_per_plane, bpp, etype, esize, npal, pos_after_pal;
int i, x, y, plane, tmp;
int i, x, y, plane, tmp, val;
bytestream2_init(&s->g, avpkt->data, avpkt->size);
@ -206,6 +206,7 @@ static int decode_frame(AVCodecContext *avctx,
// skip remaining palette bytes
bytestream2_seek(&s->g, pos_after_pal, SEEK_SET);
val = 0;
y = s->height - 1;
if (bytestream2_get_le16(&s->g)) {
x = 0;
@ -223,7 +224,7 @@ static int decode_frame(AVCodecContext *avctx,
while (plane < s->nb_planes && y >= 0 &&
bytestream2_get_bytes_left(&s->g) > stop_size) {
int run = 1;
int val = bytestream2_get_byte(&s->g);
val = bytestream2_get_byte(&s->g);
if (val == marker) {
run = bytestream2_get_byte(&s->g);
if (run == 0)
@ -240,6 +241,14 @@ static int decode_frame(AVCodecContext *avctx,
}
}
}
if (x < avctx->width && y >= 0) {
int run = (y + 1) * avctx->width - x;
if (bits_per_plane == 8)
picmemset_8bpp(s, val, run, &x, &y);
else
picmemset(s, val, run / (8 / bits_per_plane), &x, &y, &plane, bits_per_plane);
}
} else {
while (y >= 0 && bytestream2_get_bytes_left(&s->g) > 0) {
memcpy(s->frame.data[0] + y * s->frame.linesize[0], s->g.buffer, FFMIN(avctx->width, bytestream2_get_bytes_left(&s->g)));