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Support solid gray frames when decoding Lagarith.

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Fixes bug 431.
This commit is contained in:
Carl Eugen Hoyos 2013-01-22 20:17:53 +01:00
parent e65d8509f0
commit 40297a8bdb
1 changed files with 15 additions and 0 deletions
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15
libavcodec/lagarith.c
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@ -535,6 +535,14 @@ static int lag_decode_frame(AVCodecContext *avctx,
switch (frametype) {
case FRAME_SOLID_RGBA:
avctx->pix_fmt = AV_PIX_FMT_RGB32;
case FRAME_SOLID_GRAY:
if (frametype == FRAME_SOLID_GRAY)
if (avctx->bits_per_coded_sample == 24) {
avctx->pix_fmt = AV_PIX_FMT_RGB24;
} else {
avctx->pix_fmt = AV_PIX_FMT_0RGB32;
planes = 4;
}
if (ff_thread_get_buffer(avctx, p) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
@ -542,11 +550,18 @@ static int lag_decode_frame(AVCodecContext *avctx,
}
dst = p->data[0];
if (frametype == FRAME_SOLID_RGBA) {
for (j = 0; j < avctx->height; j++) {
for (i = 0; i < avctx->width; i++)
AV_WN32(dst + i * 4, offset_gu);
dst += p->linesize[0];
}
} else {
for (j = 0; j < avctx->height; j++) {
memset(dst, buf[1], avctx->width * planes);
dst += p->linesize[0];
}
}
break;
case FRAME_ARITH_RGBA:
avctx->pix_fmt = AV_PIX_FMT_RGB32;