mips: add assembler flags for mips32r2 ISA and mhard-float

[ffmpeg] / libavcodec / wmadec.c

diff --git a/libavcodec/wmadec.c b/libavcodec/wmadec.c
index 5ee374238072103daff0e3256c6bb3ac0b98b605..39e50a4ffd99ba503e4f48d06dea5af81f0ce414 100644 (file)
--- a/libavcodec/wmadec.c
+++ b/libavcodec/wmadec.c
@@ -1,21 +1,21 @@
 /*
  * WMA compatible decoder
- * Copyright (c) 2002 The Libav Project
+ * Copyright (c) 2002 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
  */
 
@@ -102,6 +102,13 @@ static int wma_decode_init(AVCodecContext * avctx)
     s->use_bit_reservoir = flags2 & 0x0002;
     s->use_variable_block_len = flags2 & 0x0004;
 
+    if(avctx->codec->id == AV_CODEC_ID_WMAV2 && avctx->extradata_size >= 8){
+        if(AV_RL16(extradata+4)==0xd && s->use_variable_block_len){
+            av_log(avctx, AV_LOG_WARNING, "Disabling use_variable_block_len, if this fails contact the ffmpeg developers and send us the file\n");
+            s->use_variable_block_len= 0; // this fixes issue1503
+        }
+    }
+
     if(ff_wma_init(avctx, flags2)<0)
         return -1;
 
@@ -484,6 +491,11 @@ static int wma_decode_block(WMACodecContext *s)
         s->block_len_bits = s->frame_len_bits;
     }
 
+    if (s->frame_len_bits - s->block_len_bits >= s->nb_block_sizes){
+        av_log(s->avctx, AV_LOG_ERROR, "block_len_bits not initialized to a valid value\n");
+        return -1;
+    }
+
     /* now check if the block length is coherent with the frame length */
     s->block_len = 1 << s->block_len_bits;
     if ((s->block_pos + s->block_len) > s->frame_len){
@@ -823,7 +835,8 @@ static int wma_decode_superframe(AVCodecContext *avctx, void *data,
                buf_size, s->block_align);
         return AVERROR_INVALIDDATA;
     }
-    buf_size = s->block_align;
+    if(s->block_align)
+        buf_size = s->block_align;
 
     init_get_bits(&s->gb, buf, buf_size*8);
 
@@ -921,7 +934,7 @@ static int wma_decode_superframe(AVCodecContext *avctx, void *data,
     *got_frame_ptr   = 1;
     *(AVFrame *)data = s->frame;
 
-    return s->block_align;
+    return buf_size;
  fail:
     /* when error, we reset the bit reservoir */
     s->last_superframe_len = 0;
@@ -936,6 +949,7 @@ static av_cold void flush(AVCodecContext *avctx)
     s->last_superframe_len= 0;
 }
 
+#if CONFIG_WMAV1_DECODER
 AVCodec ff_wmav1_decoder = {
     .name           = "wmav1",
     .type           = AVMEDIA_TYPE_AUDIO,
@@ -948,7 +962,8 @@ AVCodec ff_wmav1_decoder = {
     .capabilities   = CODEC_CAP_DR1,
     .long_name      = NULL_IF_CONFIG_SMALL("Windows Media Audio 1"),
 };
-
+#endif
+#if CONFIG_WMAV2_DECODER
 AVCodec ff_wmav2_decoder = {
     .name           = "wmav2",
     .type           = AVMEDIA_TYPE_AUDIO,
@@ -961,3 +976,4 @@ AVCodec ff_wmav2_decoder = {
     .capabilities   = CODEC_CAP_DR1,
     .long_name      = NULL_IF_CONFIG_SMALL("Windows Media Audio 2"),
 };
+#endif