Make recently added and still unused read_seek functions return offset_t.

Originally committed as revision 11274 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/avio.c

@@ -199,7 +199,7 @@ int av_url_read_pause(URLContext *h, int pause)
     return h->prot->url_read_pause(h, pause);
 }
 
-int av_url_read_seek(URLContext *h,
+offset_t av_url_read_seek(URLContext *h,
         int stream_index, int64_t timestamp, int flags)
 {
     if (!h->prot->url_read_seek)

libavformat/avio.h

@@ -105,7 +105,7 @@ int av_url_read_pause(URLContext *h, int pause);
  * @return >= 0 on success
  * @see AVInputFormat::read_seek
  */
-int av_url_read_seek(URLContext *h,
+offset_t av_url_read_seek(URLContext *h,
                      int stream_index, int64_t timestamp, int flags);
 
 /**
@@ -124,7 +124,7 @@ typedef struct URLProtocol {
     int (*url_close)(URLContext *h);
     struct URLProtocol *next;
     int (*url_read_pause)(URLContext *h, int pause);
-    int (*url_read_seek)(URLContext *h,
+    offset_t (*url_read_seek)(URLContext *h,
                          int stream_index, int64_t timestamp, int flags);
 } URLProtocol;
 
@@ -154,7 +154,7 @@ typedef struct {
     unsigned long (*update_checksum)(unsigned long checksum, const uint8_t *buf, unsigned int size);
     int error;         ///< contains the error code or 0 if no error happened
     int (*read_pause)(void *opaque, int pause);
-    int (*read_seek)(void *opaque,
+    offset_t (*read_seek)(void *opaque,
                      int stream_index, int64_t timestamp, int flags);
 } ByteIOContext;
 
@@ -189,7 +189,7 @@ int url_feof(ByteIOContext *s);
 int url_ferror(ByteIOContext *s);
 
 int av_url_read_fpause(ByteIOContext *h, int pause);
-int av_url_read_fseek(ByteIOContext *h,
+offset_t av_url_read_fseek(ByteIOContext *h,
                       int stream_index, int64_t timestamp, int flags);
 
 #define URL_EOF (-1)

libavformat/aviobuf.c

@@ -532,7 +532,7 @@ int url_fdopen(ByteIOContext **s, URLContext *h)
     (*s)->max_packet_size = max_packet_size;
     if(h->prot) {
         (*s)->read_pause = (int (*)(void *, int))h->prot->url_read_pause;
-        (*s)->read_seek  = (int (*)(void *, int, int64_t, int))h->prot->url_read_seek;
+        (*s)->read_seek  = (offset_t (*)(void *, int, int64_t, int))h->prot->url_read_seek;
     }
     return 0;
 }
@@ -646,11 +646,11 @@ int av_url_read_fpause(ByteIOContext *s, int pause)
     return s->read_pause(s->opaque, pause);
 }
 
-int av_url_read_fseek(ByteIOContext *s,
+offset_t av_url_read_fseek(ByteIOContext *s,
         int stream_index, int64_t timestamp, int flags)
 {
     URLContext *h = s->opaque;
-    int ret;
+    offset_t ret;
     if (!s->read_seek)
         return AVERROR(ENOSYS);
     ret = s->read_seek(h, stream_index, timestamp, flags);