mpegvideo: claim ownership of referenced pictures

[ffmpeg] / libavcodec / msrle.c

diff --git a/libavcodec/msrle.c b/libavcodec/msrle.c
index 28eb5d33f11e08350df64f958c554834f0abffb2..11ac7be2ff1aad92f5164be8814b81c02159276b 100644 (file)
--- a/libavcodec/msrle.c
+++ b/libavcodec/msrle.c
@@ -2,20 +2,20 @@
  * Micrsoft RLE Video Decoder
  * Copyright (C) 2003 the ffmpeg project
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -26,9 +26,6 @@
  *   http://www.pcisys.net/~melanson/codecs/
  *
  * The MS RLE decoder outputs PAL8 colorspace data.
- *
- * Note that this decoder expects the palette colors from the end of the
- * BITMAPINFO header passed through palctrl.
  */
 
 #include <stdio.h>
@@ -46,6 +43,7 @@ typedef struct MsrleContext {
     const unsigned char *buf;
     int size;
 
+    uint32_t pal[256];
 } MsrleContext;
 
 static av_cold int msrle_decode_init(AVCodecContext *avctx)
@@ -91,13 +89,16 @@ static int msrle_decode_frame(AVCodecContext *avctx,
         return -1;
     }
 
-    if (s->avctx->palctrl) {
-        /* make the palette available */
-        memcpy(s->frame.data[1], s->avctx->palctrl->palette, AVPALETTE_SIZE);
-        if (s->avctx->palctrl->palette_changed) {
+    if (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;
-            s->avctx->palctrl->palette_changed = 0;
+            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 ??? */
@@ -143,15 +144,14 @@ static av_cold int msrle_decode_end(AVCodecContext *avctx)
     return 0;
 }
 
-AVCodec msrle_decoder = {
-    "msrle",
-    AVMEDIA_TYPE_VIDEO,
-    CODEC_ID_MSRLE,
-    sizeof(MsrleContext),
-    msrle_decode_init,
-    NULL,
-    msrle_decode_end,
-    msrle_decode_frame,
-    CODEC_CAP_DR1,
+AVCodec ff_msrle_decoder = {
+    .name           = "msrle",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = CODEC_ID_MSRLE,
+    .priv_data_size = sizeof(MsrleContext),
+    .init           = msrle_decode_init,
+    .close          = msrle_decode_end,
+    .decode         = msrle_decode_frame,
+    .capabilities   = CODEC_CAP_DR1,
     .long_name= NULL_IF_CONFIG_SMALL("Microsoft RLE"),
 };