Add support for TrueHD and DTS-HD from BD sources

TrueHD and DTS-HD now show up in the audio list along side their
AC-3 and DTS counterparts.

Note that currently the DTS-HD decoder we are using (ffmpeg) discards
the HD portion of the stream and onle decodes the DTS core portion.  So
there is no advantage yet to using the DTS-HD stream.  In the future
I would like to add DTS-HD passthru support and hopefully ffmpeg will
improve their DTS-HD decoder.


git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@3950 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 8 insertions, 2 deletions

diff --git a/libhb/fifo.c b/libhb/fifo.c
index 3f0d9ea86..232741e32 100644
--- a/libhb/fifo.c
+++ b/libhb/fifo.c
@@ -119,7 +119,13 @@ static hb_fifo_t *size_to_pool( int size )
 hb_buffer_t * hb_buffer_init( int size )
 {
     hb_buffer_t * b;
-    hb_fifo_t *buffer_pool = size_to_pool( size );
+    // Certain libraries (hrm ffmpeg) expect buffers passed to them to
+    // end on certain alignments (ffmpeg is 8). So allocate some extra bytes.
+    // Note that we can't simply align the end of our buffer because
+    // sometimes we feed data to these libraries starting from arbitrary
+    // points within the buffer.
+    int alloc = size + 16;
+    hb_fifo_t *buffer_pool = size_to_pool( alloc );
 
     if( buffer_pool )
     {
@@ -150,7 +156,7 @@ hb_buffer_t * hb_buffer_init( int size )
     }
 
     b->size  = size;
-    b->alloc  = buffer_pool? buffer_pool->buffer_size : size;
+    b->alloc  = buffer_pool ? buffer_pool->buffer_size : alloc;
 
     if (size)
     {