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-rw-r--r--libavcodec/msrle.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/libavcodec/msrle.c b/libavcodec/msrle.c
index a57040f..2b4ab1a 100644
--- a/libavcodec/msrle.c
+++ b/libavcodec/msrle.c
@@ -2,20 +2,20 @@
* Microsoft RLE video decoder
* Copyright (C) 2003 the ffmpeg project
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -50,10 +50,14 @@ typedef struct MsrleContext {
static av_cold int msrle_decode_init(AVCodecContext *avctx)
{
MsrleContext *s = avctx->priv_data;
+ int i;
s->avctx = avctx;
switch (avctx->bits_per_coded_sample) {
+ case 1:
+ avctx->pix_fmt = AV_PIX_FMT_MONOWHITE;
+ break;
case 4:
case 8:
avctx->pix_fmt = AV_PIX_FMT_PAL8;
@@ -68,6 +72,10 @@ static av_cold int msrle_decode_init(AVCodecContext *avctx)
avcodec_get_frame_defaults(&s->frame);
+ if (avctx->extradata_size >= 4)
+ for (i = 0; i < FFMIN(avctx->extradata_size, AVPALETTE_SIZE)/4; i++)
+ s->pal[i] = 0xFFU<<24 | AV_RL32(avctx->extradata+4*i);
+
return 0;
}
@@ -84,26 +92,23 @@ static int msrle_decode_frame(AVCodecContext *avctx,
s->buf = buf;
s->size = buf_size;
- if ((ret = ff_reget_buffer(avctx, &s->frame)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
+ if ((ret = ff_reget_buffer(avctx, &s->frame)) < 0)
return ret;
- }
- if (avctx->bits_per_coded_sample <= 8) {
+ if (avctx->bits_per_coded_sample > 1 && avctx->bits_per_coded_sample <= 8) {
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
if (pal) {
s->frame.palette_has_changed = 1;
memcpy(s->pal, pal, AVPALETTE_SIZE);
}
-
/* make the palette available */
memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
}
/* FIXME how to correctly detect RLE ??? */
if (avctx->height * istride == avpkt->size) { /* assume uncompressed */
- int linesize = avctx->width * avctx->bits_per_coded_sample / 8;
+ int linesize = (avctx->width * avctx->bits_per_coded_sample + 7) / 8;
uint8_t *ptr = s->frame.data[0];
uint8_t *buf = avpkt->data + (avctx->height-1)*istride;
int i, j;
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