Merge remote-tracking branch 'qatar/master'

[ffmpeg] / libavcodec / rv34.c

diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c
index 4c546c22f0012191a8322a8cacf94b933dceadbc..62619b32037a4ed099e6994cfa76e58b9848f765 100644 (file)
--- a/libavcodec/rv34.c
+++ b/libavcodec/rv34.c
@@ -2,20 +2,20 @@
  * RV30/40 decoder common data
  * Copyright (c) 2007 Mike Melanson, Konstantin Shishkov
  *
- * 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
  */
 
@@ -282,7 +282,7 @@ static inline void decode_subblock3(DCTELEM *dst, int code, GetBitContext *gb, V
  *  o--o
  */
 
-static inline int rv34_decode_block(DCTELEM *dst, GetBitContext *gb, RV34VLC *rvlc, int fc, int sc, int q_dc, int q_ac1, int q_ac2)
+static int rv34_decode_block(DCTELEM *dst, GetBitContext *gb, RV34VLC *rvlc, int fc, int sc, int q_dc, int q_ac1, int q_ac2)
 {
     int code, pattern, has_ac = 1;
 
@@ -313,7 +313,7 @@ static inline int rv34_decode_block(DCTELEM *dst, GetBitContext *gb, RV34VLC *rv
         code = get_vlc2(gb, rvlc->third_pattern[sc].table, 9, 2);
         decode_subblock(dst + 4*2+2, code, 0, gb, &rvlc->coefficient, q_ac2);
     }
-    return has_ac || pattern;
+    return has_ac | pattern;
 }
 
 /**
@@ -1332,7 +1332,7 @@ static int check_slice_end(RV34DecContext *r, MpegEncContext *s)
     if(r->s.mb_skip_run > 1)
         return 0;
     bits = get_bits_left(&s->gb);
-    if(bits < 0 || (bits < 8 && !show_bits(&s->gb, bits)))
+    if(bits <= 0 || (bits < 8 && !show_bits(&s->gb, bits)))
         return 1;
     return 0;
 }
@@ -1403,6 +1403,10 @@ static int rv34_decode_slice(RV34DecContext *r, int end, const uint8_t* buf, int
         av_log(s->avctx, AV_LOG_ERROR, "Slice type mismatch\n");
         return AVERROR_INVALIDDATA;
     }
+    if (s->width != r->si.width || s->height != r->si.height) {
+        av_log(s->avctx, AV_LOG_ERROR, "Size mismatch\n");
+        return AVERROR_INVALIDDATA;
+    }
 
     r->si.end = end;
     s->qscale = r->si.quant;