[SCM] libav/experimental: Use skip_bits_long() for large skips This fixes ogg/theora on ARM (more generally the A32 bitstream reader)

siretart at users.alioth.debian.org siretart at users.alioth.debian.org
Sun Jun 30 16:45:46 UTC 2013


The following commit has been merged in the experimental branch:
commit 0a8dedc9e18eb112ea468f5bf0f32bdec74cdd64
Author: David Conrad <lessen42 at gmail.com>
Date:   Thu May 14 00:02:07 2009 +0000

    Use skip_bits_long() for large skips
    This fixes ogg/theora on ARM (more generally the A32 bitstream reader)
    
    Originally committed as revision 18819 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/mpc7.c b/libavcodec/mpc7.c
index a15f117..614a418 100644
--- a/libavcodec/mpc7.c
+++ b/libavcodec/mpc7.c
@@ -78,7 +78,7 @@ static av_cold int mpc7_decode_init(AVCodecContext * avctx)
         av_log(avctx, AV_LOG_ERROR, "Too many bands: %i\n", c->maxbands);
         return -1;
     }
-    skip_bits(&gb, 88);
+    skip_bits_long(&gb, 88);
     c->gapless = get_bits1(&gb);
     c->lastframelen = get_bits(&gb, 11);
     av_log(avctx, AV_LOG_DEBUG, "IS: %d, MSS: %d, TG: %d, LFL: %d, bands: %d\n",
diff --git a/libavcodec/nellymoserdec.c b/libavcodec/nellymoserdec.c
index 94f4418..98f0ec3 100644
--- a/libavcodec/nellymoserdec.c
+++ b/libavcodec/nellymoserdec.c
@@ -103,7 +103,7 @@ static void nelly_decode_block(NellyMoserDecodeContext *s,
         aptr = audio + i * NELLY_BUF_LEN;
 
         init_get_bits(&s->gb, block, NELLY_BLOCK_LEN * 8);
-        skip_bits(&s->gb, NELLY_HEADER_BITS + i*NELLY_DETAIL_BITS);
+        skip_bits_long(&s->gb, NELLY_HEADER_BITS + i*NELLY_DETAIL_BITS);
 
         for (j = 0; j < NELLY_FILL_LEN; j++) {
             if (bits[j] <= 0) {
diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index c1ca98f..43a3658 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -2243,7 +2243,7 @@ static av_cold int theora_decode_init(AVCodecContext *avctx)
      }
 
     // FIXME: Check for this as well.
-    skip_bits(&gb, 6*8); /* "theora" */
+    skip_bits_long(&gb, 6*8); /* "theora" */
 
     switch(ptype)
     {
diff --git a/libavformat/oggparsetheora.c b/libavformat/oggparsetheora.c
index d8b4d6c..96c432f 100644
--- a/libavformat/oggparsetheora.c
+++ b/libavformat/oggparsetheora.c
@@ -58,7 +58,7 @@ theora_header (AVFormatContext * s, int idx)
 
         init_get_bits(&gb, os->buf + os->pstart, os->psize*8);
 
-        skip_bits(&gb, 7*8); /* 0x80"theora" */
+        skip_bits_long(&gb, 7*8); /* 0x80"theora" */
 
         thp->version = get_bits_long(&gb, 24);
         if (thp->version < 0x030100)
@@ -92,7 +92,7 @@ theora_header (AVFormatContext * s, int idx)
         st->sample_aspect_ratio.den = get_bits_long(&gb, 24);
 
         if (thp->version >= 0x030200)
-            skip_bits(&gb, 38);
+            skip_bits_long(&gb, 38);
         if (thp->version >= 0x304000)
             skip_bits(&gb, 2);
 

-- 
Libav/FFmpeg packaging



More information about the pkg-multimedia-commits mailing list