From 7172339ff9086f1f86937d06c89a4b348fdf2ed3 Mon Sep 17 00:00:00 2001
From: reimar <reimar@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Sat, 12 Jan 2008 16:05:04 +0000
Subject: [PATCH] Write functions used by send_mpeg_*_packet may _not_ modify
 data

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@25701 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 libao2/ao_dxr2.c             | 4 ++--
 libmpdemux/mpeg_packetizer.c | 8 ++++----
 libmpdemux/mpeg_packetizer.h | 6 +++---
 libvo/vo_dxr2.c              | 2 +-
 4 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/libao2/ao_dxr2.c b/libao2/ao_dxr2.c
index 3056ba619a..dc0e762362 100644
--- a/libao2/ao_dxr2.c
+++ b/libao2/ao_dxr2.c
@@ -157,7 +157,7 @@ static int get_space(void){
 
 static void dxr2_send_lpcm_packet(unsigned char* data,int len,int id,unsigned int timestamp,int freq_id)
 {
-  extern int write_dxr2(unsigned char *data, int len);
+  extern int write_dxr2(const unsigned char *data, int len);
   
   if(dxr2_fd < 0) {
     mp_msg(MSGT_AO,MSGL_ERR,"DXR2 fd is not valid\n");
@@ -176,7 +176,7 @@ static void dxr2_send_lpcm_packet(unsigned char* data,int len,int id,unsigned in
 // it should round it down to outburst*n
 // return: number of bytes played
 static int play(void* data,int len,int flags){
-  extern int write_dxr2(unsigned char *data, int len);
+  extern int write_dxr2(const unsigned char *data, int len);
 
   // MPEG and AC3 don't work :-(
     if(ao_data.format==AF_FORMAT_MPEG2)
diff --git a/libmpdemux/mpeg_packetizer.c b/libmpdemux/mpeg_packetizer.c
index ecff3f804d..6f198abc11 100644
--- a/libmpdemux/mpeg_packetizer.c
+++ b/libmpdemux/mpeg_packetizer.c
@@ -48,7 +48,7 @@ static const unsigned char ps1_header[] = {
 static int
 send_mpeg_pes_packet_ll(unsigned char *data, int len, int id, uint64_t pts,
                       int type, unsigned char *header, int header_len,
-                      int align4, int my_write (unsigned char *data, int len))
+                      int align4, int my_write (const unsigned char *data, int len))
 {
   int ptslen = (pts ? 5 : 0);
   int n = 0;
@@ -139,7 +139,7 @@ send_mpeg_pes_packet_ll(unsigned char *data, int len, int id, uint64_t pts,
 
 int
 send_mpeg_pes_packet (unsigned char *data, int len, int id, uint64_t pts,
-                      int type, int my_write (unsigned char *data, int len))
+                      int type, int my_write (const unsigned char *data, int len))
 {
     return send_mpeg_pes_packet_ll(data, len, id, pts, type, NULL, 0, 0, my_write);
 }
@@ -148,7 +148,7 @@ send_mpeg_pes_packet (unsigned char *data, int len, int id, uint64_t pts,
 /* Send MPEG <type> PS packet */
 int
 send_mpeg_ps_packet(unsigned char *data, int len, int id, uint64_t pts, int type,
-                      int my_write (unsigned char *data, int len))
+                      int my_write (const unsigned char *data, int len))
 {
   if(type == 2)
     my_write (ps2_header, sizeof (ps2_header));
@@ -161,7 +161,7 @@ send_mpeg_ps_packet(unsigned char *data, int len, int id, uint64_t pts, int type
 int
 send_mpeg_lpcm_packet(unsigned char* data, int len,
                        int id, uint64_t pts, int freq_id,
-                       int my_write (unsigned char *data, int len))
+                       int my_write (const unsigned char *data, int len))
 {
     unsigned char header[7] = {0xA0, 0x07, 0x00, 0x04, 0x0C, 1 | (freq_id << 4), 0x80};
     return send_mpeg_pes_packet_ll(data, len, 0xBD, pts, 2, header, sizeof(header), 1, my_write);
diff --git a/libmpdemux/mpeg_packetizer.h b/libmpdemux/mpeg_packetizer.h
index 6a17034f1f..1273b86b3a 100644
--- a/libmpdemux/mpeg_packetizer.h
+++ b/libmpdemux/mpeg_packetizer.h
@@ -27,15 +27,15 @@
 
 /* Send MPEG <type> PES packet */
 int send_mpeg_pes_packet (unsigned char *data, int len, int id, uint64_t pts, 
-                          int type, int my_write (unsigned char *data, int len));
+                          int type, int my_write (const unsigned char *data, int len));
 
 /* Send MPEG <type> PS packet */
 int send_mpeg_ps_packet (unsigned char *data, int len, int id, uint64_t pts, 
-                         int type,int my_write (unsigned char *data, int len));
+                         int type,int my_write (const unsigned char *data, int len));
 
 /* Send MPEG 2 LPCM packet */
 int send_mpeg_lpcm_packet (unsigned char *data, int len,
                            int id, uint64_t pts, int freq_id,
-                           int my_write (unsigned char *data, int len));
+                           int my_write (const unsigned char *data, int len));
 
 #endif /* MPEG_PACKETIZER_H */
diff --git a/libvo/vo_dxr2.c b/libvo/vo_dxr2.c
index 4aca495b30..37f093ec98 100644
--- a/libvo/vo_dxr2.c
+++ b/libvo/vo_dxr2.c
@@ -153,7 +153,7 @@ static char *ucodesearchpath[] = {
 static unsigned char dxr2buf[BUF_SIZE];
 static unsigned int  dxr2bufpos = 0;
 
-int write_dxr2(unsigned char *data, int len)
+int write_dxr2(const unsigned char *data, int len)
 {
   int w = 0;