Remove offset_t typedef and use int64_t directly instead.

The name offset_t is easily confused with the standard off_t type and
*_t is POSIX reserved namespace if any POSIX header is included.

Originally committed as revision 15533 to svn://svn.ffmpeg.org/ffmpeg/trunk

36 files changed, 204 insertions, 208 deletions

diff --git a/libavformat/aiff.c b/libavformat/aiff.c
index 3a4bf9f9dd..8bd69c200e 100644
--- a/libavformat/aiff.c
+++ b/libavformat/aiff.c
@@ -172,9 +172,9 @@ static unsigned int get_aiff_header(ByteIOContext *pb, AVCodecContext *codec,
 
 #ifdef CONFIG_AIFF_MUXER
 typedef struct {
-    offset_t form;
-    offset_t frames;
-    offset_t ssnd;
+    int64_t form;
+    int64_t frames;
+    int64_t ssnd;
 } AIFFOutputContext;
 
 static int aiff_write_header(AVFormatContext *s)
@@ -265,7 +265,7 @@ static int aiff_write_trailer(AVFormatContext *s)
     AVCodecContext *enc = s->streams[0]->codec;
 
     /* Chunks sizes must be even */
-    offset_t file_size, end_size;
+    int64_t file_size, end_size;
     end_size = file_size = url_ftell(pb);
     if (file_size & 1) {
         put_byte(pb, 0);
@@ -312,7 +312,7 @@ static int aiff_read_header(AVFormatContext *s,
                             AVFormatParameters *ap)
 {
     int size, filesize;
-    offset_t offset = 0;
+    int64_t offset = 0;
     uint32_t tag;
     unsigned version = AIFF_C_VERSION1;
     ByteIOContext *pb = s->pb;
diff --git a/libavformat/au.c b/libavformat/au.c
index ffb26ed54e..7d151cf1d6 100644
--- a/libavformat/au.c
+++ b/libavformat/au.c
@@ -88,7 +88,7 @@ static int au_write_packet(AVFormatContext *s, AVPacket *pkt)
 static int au_write_trailer(AVFormatContext *s)
 {
     ByteIOContext *pb = s->pb;
-    offset_t file_size;
+    int64_t file_size;
 
     if (!url_is_streamed(s->pb)) {
 
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index e11e78813e..d8e0b0a356 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -1065,9 +1065,9 @@ int64_t av_gettime(void);
 
 /* ffm-specific for ffserver */
 #define FFM_PACKET_SIZE 4096
-offset_t ffm_read_write_index(int fd);
-void ffm_write_write_index(int fd, offset_t pos);
-void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
+int64_t ffm_read_write_index(int fd);
+void ffm_write_write_index(int fd, int64_t pos);
+void ffm_set_write_index(AVFormatContext *s, int64_t pos, int64_t file_size);
 
 /**
  * Attempts to find a specific tag in a URL.
diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index b4494f7fbd..c9c27e262d 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -51,7 +51,7 @@ typedef struct {
     int64_t  riff_end;
     int64_t  movi_end;
     int64_t  fsize;
-    offset_t movi_list;
+    int64_t movi_list;
     int index_loaded;
     int is_odml;
     int non_interleaved;
@@ -217,7 +217,7 @@ static void clean_index(AVFormatContext *s){
 
 static int avi_read_tag(ByteIOContext *pb, char *buf, int maxlen,  unsigned int size)
 {
-    offset_t i = url_ftell(pb);
+    int64_t i = url_ftell(pb);
     size += (size & 1);
     get_strz(pb, buf, maxlen);
     url_fseek(pb, i+size, SEEK_SET);
@@ -619,7 +619,7 @@ static int avi_read_packet(AVFormatContext *s, AVPacket *pkt)
     AVIContext *avi = s->priv_data;
     ByteIOContext *pb = s->pb;
     int n, d[8], size;
-    offset_t i, sync;
+    int64_t i, sync;
     void* dstr;
 
     if (ENABLE_DV_DEMUXER && avi->dv_demux) {
@@ -937,7 +937,7 @@ static int avi_load_index(AVFormatContext *s)
     AVIContext *avi = s->priv_data;
     ByteIOContext *pb = s->pb;
     uint32_t tag, size;
-    offset_t pos= url_ftell(pb);
+    int64_t pos= url_ftell(pb);
 
     url_fseek(pb, avi->movi_end, SEEK_SET);
 #ifdef DEBUG_SEEK
diff --git a/libavformat/avienc.c b/libavformat/avienc.c
index db59555e45..a672e8d85c 100644
--- a/libavformat/avienc.c
+++ b/libavformat/avienc.c
@@ -35,15 +35,15 @@ typedef struct AVIIentry {
 #define AVI_INDEX_CLUSTER_SIZE 16384
 
 typedef struct AVIIndex {
-    offset_t    indx_start;
+    int64_t     indx_start;
     int         entry;
     int         ents_allocated;
     AVIIentry** cluster;
 } AVIIndex;
 
 typedef struct {
-    offset_t riff_start, movi_list, odml_list;
-    offset_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
+    int64_t riff_start, movi_list, odml_list;
+    int64_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
     int audio_strm_length[MAX_STREAMS];
     int riff_id;
     int packet_count[MAX_STREAMS];
@@ -58,10 +58,10 @@ static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id)
     return &idx->cluster[cl][id];
 }
 
-static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
-                                   const char* riff_tag, const char* list_tag)
+static int64_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
+                                  const char* riff_tag, const char* list_tag)
 {
-    offset_t loff;
+    int64_t loff;
     int i;
 
     avi->riff_id++;
@@ -108,7 +108,7 @@ static int avi_write_counters(AVFormatContext* s, int riff_id)
     ByteIOContext *pb = s->pb;
     AVIContext *avi = s->priv_data;
     int n, au_byterate, au_ssize, au_scale, nb_frames = 0;
-    offset_t file_size;
+    int64_t file_size;
     AVCodecContext* stream;
 
     file_size = url_ftell(pb);
@@ -141,7 +141,7 @@ static int avi_write_header(AVFormatContext *s)
     ByteIOContext *pb = s->pb;
     int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
     AVCodecContext *stream, *video_enc;
-    offset_t list1, list2, strh, strf;
+    int64_t list1, list2, strh, strf;
 
     /* header list */
     avi->riff_id = 0;
@@ -375,7 +375,7 @@ static int avi_write_ix(AVFormatContext *s)
         return -1;
 
     for (i=0;i<s->nb_streams;i++) {
-         offset_t ix, pos;
+         int64_t ix, pos;
 
          avi_stream2fourcc(&tag[0], i, s->streams[i]->codec->codec_type);
          ix_tag[3] = '0' + i;
@@ -422,7 +422,7 @@ static int avi_write_idx1(AVFormatContext *s)
 {
     ByteIOContext *pb = s->pb;
     AVIContext *avi = s->priv_data;
-    offset_t idx_chunk;
+    int64_t idx_chunk;
     int i;
     char tag[5];
 
@@ -543,7 +543,7 @@ static int avi_write_trailer(AVFormatContext *s)
     ByteIOContext *pb = s->pb;
     int res = 0;
     int i, j, n, nb_frames;
-    offset_t file_size;
+    int64_t file_size;
 
     if (!url_is_streamed(pb)){
         if (avi->riff_id == 1) {
diff --git a/libavformat/avio.c b/libavformat/avio.c
index 1278827802..c2acb4664e 100644
--- a/libavformat/avio.c
+++ b/libavformat/avio.c
@@ -153,9 +153,9 @@ int url_write(URLContext *h, unsigned char *buf, int size)
     return ret;
 }
 
-offset_t url_seek(URLContext *h, offset_t pos, int whence)
+int64_t url_seek(URLContext *h, int64_t pos, int whence)
 {
-    offset_t ret;
+    int64_t ret;
 
     if (!h->prot->url_seek)
         return AVERROR(EPIPE);
@@ -183,9 +183,9 @@ int url_exist(const char *filename)
     return 1;
 }
 
-offset_t url_filesize(URLContext *h)
+int64_t url_filesize(URLContext *h)
 {
-    offset_t pos, size;
+    int64_t pos, size;
 
     size= url_seek(h, 0, AVSEEK_SIZE);
     if(size<0){
@@ -228,7 +228,7 @@ int av_url_read_pause(URLContext *h, int pause)
     return h->prot->url_read_pause(h, pause);
 }
 
-offset_t av_url_read_seek(URLContext *h,
+int64_t av_url_read_seek(URLContext *h,
         int stream_index, int64_t timestamp, int flags)
 {
     if (!h->prot->url_read_seek)
diff --git a/libavformat/avio.h b/libavformat/avio.h
index ef53154ff0..687333ed4a 100644
--- a/libavformat/avio.h
+++ b/libavformat/avio.h
@@ -23,10 +23,6 @@
 
 #include <stdint.h>
 
-/* output byte stream handling */
-
-typedef int64_t offset_t;
-
 /* unbuffered I/O */
 
 /**
@@ -67,10 +63,10 @@ int url_open_protocol (URLContext **puc, struct URLProtocol *up,
 int url_open(URLContext **h, const char *filename, int flags);
 int url_read(URLContext *h, unsigned char *buf, int size);
 int url_write(URLContext *h, unsigned char *buf, int size);
-offset_t url_seek(URLContext *h, offset_t pos, int whence);
+int64_t url_seek(URLContext *h, int64_t pos, int whence);
 int url_close(URLContext *h);
 int url_exist(const char *filename);
-offset_t url_filesize(URLContext *h);
+int64_t url_filesize(URLContext *h);
 
 /**
  * Return the maximum packet size associated to packetized file
@@ -118,7 +114,7 @@ int av_url_read_pause(URLContext *h, int pause);
  * @return >= 0 on success
  * @see AVInputFormat::read_seek
  */
-offset_t av_url_read_seek(URLContext *h,
+int64_t av_url_read_seek(URLContext *h,
                      int stream_index, int64_t timestamp, int flags);
 
 /**
@@ -133,11 +129,11 @@ typedef struct URLProtocol {
     int (*url_open)(URLContext *h, const char *filename, int flags);
     int (*url_read)(URLContext *h, unsigned char *buf, int size);
     int (*url_write)(URLContext *h, unsigned char *buf, int size);
-    offset_t (*url_seek)(URLContext *h, offset_t pos, int whence);
+    int64_t (*url_seek)(URLContext *h, int64_t pos, int whence);
     int (*url_close)(URLContext *h);
     struct URLProtocol *next;
     int (*url_read_pause)(URLContext *h, int pause);
-    offset_t (*url_read_seek)(URLContext *h,
+    int64_t (*url_read_seek)(URLContext *h,
                          int stream_index, int64_t timestamp, int flags);
 } URLProtocol;
 
@@ -162,8 +158,8 @@ typedef struct {
     void *opaque;
     int (*read_packet)(void *opaque, uint8_t *buf, int buf_size);
     int (*write_packet)(void *opaque, uint8_t *buf, int buf_size);
-    offset_t (*seek)(void *opaque, offset_t offset, int whence);
-    offset_t pos; /**< position in the file of the current buffer */
+    int64_t (*seek)(void *opaque, int64_t offset, int whence);
+    int64_t pos; /**< position in the file of the current buffer */
     int must_flush; /**< true if the next seek should flush */
     int eof_reached; /**< true if eof reached */
     int write_flag;  /**< true if open for writing */
@@ -174,7 +170,7 @@ 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);
-    offset_t (*read_seek)(void *opaque,
+    int64_t (*read_seek)(void *opaque,
                      int stream_index, int64_t timestamp, int flags);
 } ByteIOContext;
 
@@ -185,7 +181,7 @@ int init_put_byte(ByteIOContext *s,
                   void *opaque,
                   int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
                   int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
-                  offset_t (*seek)(void *opaque, offset_t offset, int whence));
+                  int64_t (*seek)(void *opaque, int64_t offset, int whence));
 ByteIOContext *av_alloc_put_byte(
                   unsigned char *buffer,
                   int buffer_size,
@@ -193,7 +189,7 @@ ByteIOContext *av_alloc_put_byte(
                   void *opaque,
                   int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
                   int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
-                  offset_t (*seek)(void *opaque, offset_t offset, int whence));
+                  int64_t (*seek)(void *opaque, int64_t offset, int whence));
 
 void put_byte(ByteIOContext *s, int b);
 void put_buffer(ByteIOContext *s, const unsigned char *buf, int size);
@@ -213,25 +209,25 @@ void put_strz(ByteIOContext *s, const char *buf);
  * fseek() equivalent for ByteIOContext.
  * @return new position or AVERROR.
  */
-offset_t url_fseek(ByteIOContext *s, offset_t offset, int whence);
+int64_t url_fseek(ByteIOContext *s, int64_t offset, int whence);
 
 /**
  * Skip given number of bytes forward.
  * @param offset number of bytes
  */
-void url_fskip(ByteIOContext *s, offset_t offset);
+void url_fskip(ByteIOContext *s, int64_t offset);
 
 /**
  * ftell() equivalent for ByteIOContext.
  * @return position or AVERROR.
  */
-offset_t url_ftell(ByteIOContext *s);
+int64_t url_ftell(ByteIOContext *s);
 
 /**
  * Gets the filesize.
  * @return filesize or AVERROR
  */
-offset_t url_fsize(ByteIOContext *s);
+int64_t url_fsize(ByteIOContext *s);
 
 /**
  * feof() equivalent for ByteIOContext.
@@ -242,7 +238,7 @@ int url_feof(ByteIOContext *s);
 int url_ferror(ByteIOContext *s);
 
 int av_url_read_fpause(ByteIOContext *h, int pause);
-offset_t av_url_read_fseek(ByteIOContext *h,
+int64_t av_url_read_fseek(ByteIOContext *h,
                       int stream_index, int64_t timestamp, int flags);
 
 #define URL_EOF (-1)
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 34029a5ee7..ac7bb8f7fd 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -35,7 +35,7 @@ int init_put_byte(ByteIOContext *s,
                   void *opaque,
                   int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
                   int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
-                  offset_t (*seek)(void *opaque, offset_t offset, int whence))
+                  int64_t (*seek)(void *opaque, int64_t offset, int whence))
 {
     s->buffer = buffer;
     s->buffer_size = buffer_size;
@@ -68,7 +68,7 @@ ByteIOContext *av_alloc_put_byte(
                   void *opaque,
                   int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
                   int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
-                  offset_t (*seek)(void *opaque, offset_t offset, int whence)) {
+                  int64_t (*seek)(void *opaque, int64_t offset, int whence)) {
     ByteIOContext *s = av_mallocz(sizeof(ByteIOContext));
     init_put_byte(s, buffer, buffer_size, write_flag, opaque,
                   read_packet, write_packet, seek);
@@ -125,10 +125,10 @@ void put_flush_packet(ByteIOContext *s)
     s->must_flush = 0;
 }
 
-offset_t url_fseek(ByteIOContext *s, offset_t offset, int whence)
+int64_t url_fseek(ByteIOContext *s, int64_t offset, int whence)
 {
-    offset_t offset1;
-    offset_t pos;
+    int64_t offset1;
+    int64_t pos;
 
     if(!s)
         return AVERROR(EINVAL);
@@ -157,7 +157,7 @@ offset_t url_fseek(ByteIOContext *s, offset_t offset, int whence)
             return AVERROR(EPIPE);
         s->buf_ptr = s->buf_end + offset - s->pos;
     } else {
-        offset_t res = AVERROR(EPIPE);
+        int64_t res = AVERROR(EPIPE);
 
 #if defined(CONFIG_MUXERS) || defined(CONFIG_NETWORK)
         if (s->write_flag) {
@@ -176,19 +176,19 @@ offset_t url_fseek(ByteIOContext *s, offset_t offset, int whence)
     return offset;
 }
 
-void url_fskip(ByteIOContext *s, offset_t offset)
+void url_fskip(ByteIOContext *s, int64_t offset)
 {
     url_fseek(s, offset, SEEK_CUR);
 }
 
-offset_t url_ftell(ByteIOContext *s)
+int64_t url_ftell(ByteIOContext *s)
 {
     return url_fseek(s, 0, SEEK_CUR);
 }
 
-offset_t url_fsize(ByteIOContext *s)
+int64_t url_fsize(ByteIOContext *s)
 {
-    offset_t size;
+    int64_t size;
 
     if(!s)
         return AVERROR(EINVAL);
@@ -546,7 +546,7 @@ 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  = (offset_t (*)(void *, int, int64_t, int))h->prot->url_read_seek;
+        (*s)->read_seek  = (int64_t (*)(void *, int, int64_t, int))h->prot->url_read_seek;
     }
     return 0;
 }
@@ -660,11 +660,11 @@ int av_url_read_fpause(ByteIOContext *s, int pause)
     return s->read_pause(s->opaque, pause);
 }
 
-offset_t av_url_read_fseek(ByteIOContext *s,
+int64_t av_url_read_fseek(ByteIOContext *s,
         int stream_index, int64_t timestamp, int flags)
 {
     URLContext *h = s->opaque;
-    offset_t ret;
+    int64_t ret;
     if (!s->read_seek)
         return AVERROR(ENOSYS);
     ret = s->read_seek(h, stream_index, timestamp, flags);
@@ -756,7 +756,7 @@ static int dyn_packet_buf_write(void *opaque, uint8_t *buf, int buf_size)
     return dyn_buf_write(opaque, buf, buf_size);
 }
 
-static offset_t dyn_buf_seek(void *opaque, offset_t offset, int whence)
+static int64_t dyn_buf_seek(void *opaque, int64_t offset, int whence)
 {
     DynBuffer *d = opaque;
 
diff --git a/libavformat/ffm.h b/libavformat/ffm.h
index 0ed5c227f3..4a52c407ad 100644
--- a/libavformat/ffm.h
+++ b/libavformat/ffm.h
@@ -42,7 +42,7 @@ enum {
 
 typedef struct FFMContext {
     /* only reading mode */
-    offset_t write_index, file_size;
+    int64_t write_index, file_size;
     int read_state;
     uint8_t header[FRAME_HEADER_SIZE+4];
 
diff --git a/libavformat/ffmdec.c b/libavformat/ffmdec.c
index d70c54594c..345e62e6a3 100644
--- a/libavformat/ffmdec.c
+++ b/libavformat/ffmdec.c
@@ -24,7 +24,7 @@
 #ifdef CONFIG_FFSERVER
 #include <unistd.h>
 
-offset_t ffm_read_write_index(int fd)
+int64_t ffm_read_write_index(int fd)
 {
     uint8_t buf[8];
 
@@ -33,7 +33,7 @@ offset_t ffm_read_write_index(int fd)
     return AV_RB64(buf);
 }
 
-void ffm_write_write_index(int fd, offset_t pos)
+void ffm_write_write_index(int fd, int64_t pos)
 {
     uint8_t buf[8];
     int i;
@@ -44,7 +44,7 @@ void ffm_write_write_index(int fd, offset_t pos)
     write(fd, buf, 8);
 }
 
-void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size)
+void ffm_set_write_index(AVFormatContext *s, int64_t pos, int64_t file_size)
 {
     FFMContext *ffm = s->priv_data;
     ffm->write_index = pos;
@@ -55,7 +55,7 @@ void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size)
 static int ffm_is_avail_data(AVFormatContext *s, int size)
 {
     FFMContext *ffm = s->priv_data;
-    offset_t pos, avail_size;
+    int64_t pos, avail_size;
     int len;
 
     len = ffm->packet_end - ffm->packet_ptr;
@@ -141,11 +141,11 @@ static int ffm_read_data(AVFormatContext *s,
 
 /* pos is between 0 and file_size - FFM_PACKET_SIZE. It is translated
    by the write position inside this function */
-static void ffm_seek1(AVFormatContext *s, offset_t pos1)
+static void ffm_seek1(AVFormatContext *s, int64_t pos1)
 {
     FFMContext *ffm = s->priv_data;
     ByteIOContext *pb = s->pb;
-    offset_t pos;
+    int64_t pos;
 
     pos = pos1 + ffm->write_index;
     if (pos >= ffm->file_size)
@@ -156,7 +156,7 @@ static void ffm_seek1(AVFormatContext *s, offset_t pos1)
     url_fseek(pb, pos, SEEK_SET);
 }
 
-static int64_t get_dts(AVFormatContext *s, offset_t pos)
+static int64_t get_dts(AVFormatContext *s, int64_t pos)
 {
     ByteIOContext *pb = s->pb;
     int64_t dts;
@@ -175,10 +175,10 @@ static void adjust_write_index(AVFormatContext *s)
     FFMContext *ffm = s->priv_data;
     ByteIOContext *pb = s->pb;
     int64_t pts;
-    //offset_t orig_write_index = ffm->write_index;
-    offset_t pos_min, pos_max;
+    //int64_t orig_write_index = ffm->write_index;
+    int64_t pos_min, pos_max;
     int64_t pts_start;
-    offset_t ptr = url_ftell(pb);
+    int64_t ptr = url_ftell(pb);
 
 
     pos_min = 0;
@@ -199,7 +199,7 @@ static void adjust_write_index(AVFormatContext *s)
 
     if (pts - 100000 <= pts_start) {
         while (1) {
-            offset_t newpos;
+            int64_t newpos;
             int64_t newpts;
 
             newpos = ((pos_max + pos_min) / (2 * FFM_PACKET_SIZE)) * FFM_PACKET_SIZE;
@@ -419,7 +419,7 @@ static int ffm_read_packet(AVFormatContext *s, AVPacket *pkt)
 static int ffm_seek(AVFormatContext *s, int stream_index, int64_t wanted_pts, int flags)
 {
     FFMContext *ffm = s->priv_data;
-    offset_t pos_min, pos_max, pos;
+    int64_t pos_min, pos_max, pos;
     int64_t pts_min, pts_max, pts;
     double pos1;
 
diff --git a/libavformat/file.c b/libavformat/file.c
index 9640ff654e..e50168d89e 100644
--- a/libavformat/file.c
+++ b/libavformat/file.c
@@ -67,7 +67,7 @@ static int file_write(URLContext *h, unsigned char *buf, int size)
 }
 
 /* XXX: use llseek */
-static offset_t file_seek(URLContext *h, offset_t pos, int whence)
+static int64_t file_seek(URLContext *h, int64_t pos, int whence)
 {
     int fd = (size_t)h->priv_data;
     return lseek(fd, pos, whence);
diff --git a/libavformat/flvenc.c b/libavformat/flvenc.c
index 16c18d9c51..ac5840727f 100644
--- a/libavformat/flvenc.c
+++ b/libavformat/flvenc.c
@@ -48,8 +48,8 @@ static const AVCodecTag flv_audio_codec_ids[] = {
 
 typedef struct FLVContext {
     int reserved;
-    offset_t duration_offset;
-    offset_t filesize_offset;
+    int64_t duration_offset;
+    int64_t filesize_offset;
     int64_t duration;
     int delay; ///< first dts delay for AVC
 } FLVContext;
@@ -250,7 +250,7 @@ static int flv_write_header(AVFormatContext *s)
     for (i = 0; i < s->nb_streams; i++) {
         AVCodecContext *enc = s->streams[i]->codec;
         if (enc->codec_id == CODEC_ID_AAC || enc->codec_id == CODEC_ID_H264) {
-            offset_t pos;
+            int64_t pos;
             put_byte(pb, enc->codec_type == CODEC_TYPE_VIDEO ?
                      FLV_TAG_TYPE_VIDEO : FLV_TAG_TYPE_AUDIO);
             put_be24(pb, 0); // size patched later
diff --git a/libavformat/gxfenc.c b/libavformat/gxfenc.c
index 20d09473fb..72a35c35c3 100644
--- a/libavformat/gxfenc.c
+++ b/libavformat/gxfenc.c
@@ -120,16 +120,16 @@ static int gxf_find_lines_index(GXFStreamContext *ctx)
     return -1;
 }
 
-static void gxf_write_padding(ByteIOContext *pb, offset_t to_pad)
+static void gxf_write_padding(ByteIOContext *pb, int64_t to_pad)
 {
     for (; to_pad > 0; to_pad--) {
         put_byte(pb, 0);
     }
 }
 
-static offset_t updatePacketSize(ByteIOContext *pb, offset_t pos)
+static int64_t updatePacketSize(ByteIOContext *pb, int64_t pos)
 {
-    offset_t curpos;
+    int64_t curpos;
     int size;
 
     size = url_ftell(pb) - pos;
@@ -144,9 +144,9 @@ static offset_t updatePacketSize(ByteIOContext *pb, offset_t pos)
     return curpos - pos;
 }
 
-static offset_t updateSize(ByteIOContext *pb, offset_t pos)
+static int64_t updateSize(ByteIOContext *pb, int64_t pos)
 {
-    offset_t curpos;
+    int64_t curpos;
 
     curpos = url_ftell(pb);
     url_fseek(pb, pos, SEEK_SET);
@@ -207,7 +207,7 @@ static int gxf_write_timecode_auxiliary(ByteIOContext *pb, GXFStreamContext *ctx
 
 static int gxf_write_track_description(ByteIOContext *pb, GXFStreamContext *stream)
 {
-    offset_t pos;
+    int64_t pos;
 
     /* track description section */
     put_byte(pb, stream->media_type + 0x80);
@@ -261,7 +261,7 @@ static int gxf_write_track_description(ByteIOContext *pb, GXFStreamContext *stre
 
 static int gxf_write_material_data_section(ByteIOContext *pb, GXFContext *ctx)
 {
-    offset_t pos;
+    int64_t pos;
     const char *filename = strrchr(ctx->fc->filename, '/');
 
     pos = url_ftell(pb);
@@ -307,7 +307,7 @@ static int gxf_write_material_data_section(ByteIOContext *pb, GXFContext *ctx)
 
 static int gxf_write_track_description_section(ByteIOContext *pb, GXFContext *ctx)
 {
-    offset_t pos;
+    int64_t pos;
     int i;
 
     pos = url_ftell(pb);
@@ -319,7 +319,7 @@ static int gxf_write_track_description_section(ByteIOContext *pb, GXFContext *ct
 
 static int gxf_write_map_packet(ByteIOContext *pb, GXFContext *ctx)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
 
     gxf_write_packet_header(pb, PKT_MAP);
 
@@ -336,7 +336,7 @@ static int gxf_write_map_packet(ByteIOContext *pb, GXFContext *ctx)
 #if 0
 static int gxf_write_flt_packet(ByteIOContext *pb, GXFContext *ctx)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     int i;
 
     gxf_write_packet_header(pb, PKT_FLT);
@@ -390,7 +390,7 @@ static int gxf_write_umf_payload(ByteIOContext *pb, GXFContext *ctx)
 
 static int gxf_write_umf_track_description(ByteIOContext *pb, GXFContext *ctx)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     int tracks[255]={0};
     int i;
 
@@ -486,7 +486,7 @@ static int gxf_write_umf_media_mjpeg(ByteIOContext *pb, GXFStreamContext *track)
 
 static int gxf_write_umf_media_description(ByteIOContext *pb, GXFContext *ctx)
 {
-    offset_t pos;
+    int64_t pos;
     int i;
 
     pos = url_ftell(pb);
@@ -494,7 +494,7 @@ static int gxf_write_umf_media_description(ByteIOContext *pb, GXFContext *ctx)
     for (i = 0; i < ctx->fc->nb_streams; ++i) {
         GXFStreamContext *sc = &ctx->streams[i];
         char buffer[88];
-        offset_t startpos, curpos;
+        int64_t startpos, curpos;
         int path_size = strlen(ES_NAME_PATTERN);
 
         memset(buffer, 0, 88);
@@ -538,7 +538,7 @@ static int gxf_write_umf_media_description(ByteIOContext *pb, GXFContext *ctx)
 
 static int gxf_write_umf_user_data(ByteIOContext *pb, GXFContext *ctx)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     ctx->umf_user_data_offset = pos - ctx->umf_start_offset;
     put_le32(pb, 20);
     put_le32(pb,  0);
@@ -554,7 +554,7 @@ static int gxf_write_umf_user_data(ByteIOContext *pb, GXFContext *ctx)
 
 static int gxf_write_umf_packet(ByteIOContext *pb, GXFContext *ctx)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
 
     gxf_write_packet_header(pb, PKT_UMF);
 
@@ -663,7 +663,7 @@ static int gxf_write_header(AVFormatContext *s)
 
 static int gxf_write_eos_packet(ByteIOContext *pb, GXFContext *ctx)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
 
     gxf_write_packet_header(pb, PKT_EOS);
     return updatePacketSize(pb, pos);
@@ -673,7 +673,7 @@ static int gxf_write_trailer(AVFormatContext *s)
 {
     ByteIOContext *pb = s->pb;
     GXFContext *gxf = s->priv_data;
-    offset_t end;
+    int64_t end;
     int i;
 
     for (i = 0; i < s->nb_streams; ++i) {
@@ -745,7 +745,7 @@ static int gxf_write_media_preamble(ByteIOContext *pb, GXFContext *ctx, AVPacket
 static int gxf_write_media_packet(ByteIOContext *pb, GXFContext *ctx, AVPacket *pkt)
 {
     GXFStreamContext *sc = &ctx->streams[pkt->stream_index];
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     int padding = 0;
 
     gxf_write_packet_header(pb, PKT_MEDIA);
diff --git a/libavformat/http.c b/libavformat/http.c
index fc9cac442d..6b3004d75c 100644
--- a/libavformat/http.c
+++ b/libavformat/http.c
@@ -41,7 +41,7 @@ typedef struct {
     unsigned char buffer[BUFFER_SIZE], *buf_ptr, *buf_end;
     int line_count;
     int http_code;
-    offset_t off, filesize;
+    int64_t off, filesize;
     char location[URL_SIZE];
 } HTTPContext;
 
@@ -213,7 +213,7 @@ static int http_connect(URLContext *h, const char *path, const char *hoststr,
     char line[1024], *q;
     char *auth_b64;
     int auth_b64_len = strlen(auth)* 4 / 3 + 12;
-    offset_t off = s->off;
+    int64_t off = s->off;
 
 
     /* send http header */
@@ -316,11 +316,11 @@ static int http_close(URLContext *h)
     return 0;
 }
 
-static offset_t http_seek(URLContext *h, offset_t off, int whence)
+static int64_t http_seek(URLContext *h, int64_t off, int whence)
 {
     HTTPContext *s = h->priv_data;
     URLContext *old_hd = s->hd;
-    offset_t old_off = s->off;
+    int64_t old_off = s->off;
 
     if (whence == AVSEEK_SIZE)
         return s->filesize;
diff --git a/libavformat/idroq.c b/libavformat/idroq.c
index b5dae21b04..acf2db6c1c 100644
--- a/libavformat/idroq.c
+++ b/libavformat/idroq.c
@@ -181,7 +181,7 @@ static int roq_read_packet(AVFormatContext *s,
     unsigned int codebook_size;
     unsigned char preamble[RoQ_CHUNK_PREAMBLE_SIZE];
     int packet_read = 0;
-    offset_t codebook_offset;
+    int64_t codebook_offset;
 
     while (!packet_read) {
 
diff --git a/libavformat/ipmovie.c b/libavformat/ipmovie.c
index 839e099a5e..4a766b2cde 100644
--- a/libavformat/ipmovie.c
+++ b/libavformat/ipmovie.c
@@ -107,14 +107,14 @@ typedef struct IPMVEContext {
     int video_stream_index;
     int audio_stream_index;
 
-    offset_t audio_chunk_offset;
+    int64_t audio_chunk_offset;
     int audio_chunk_size;
-    offset_t video_chunk_offset;
+    int64_t video_chunk_offset;
     int video_chunk_size;
-    offset_t decode_map_chunk_offset;
+    int64_t decode_map_chunk_offset;
     int decode_map_chunk_size;
 
-    offset_t next_chunk_offset;
+    int64_t next_chunk_offset;
 
     AVPaletteControl palette_control;
 
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 04aa67aaed..0345f575c3 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -200,7 +200,7 @@ typedef struct {
     EbmlList seekhead;
 
     /* byte position of the segment inside the stream */
-    offset_t segment_start;
+    int64_t segment_start;
 
     /* the packet queue */
     AVPacket **packets;
@@ -495,7 +495,7 @@ const struct {
 static int ebml_level_end(MatroskaDemuxContext *matroska)
 {
     ByteIOContext *pb = matroska->ctx->pb;
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
 
     if (matroska->num_levels > 0) {
         MatroskaLevel *level = &matroska->levels[matroska->num_levels - 1];
@@ -527,7 +527,7 @@ static int ebml_read_num(MatroskaDemuxContext *matroska, ByteIOContext *pb,
     if (!(total = get_byte(pb))) {
         /* we might encounter EOS here */
         if (!url_feof(pb)) {
-            offset_t pos = url_ftell(pb);
+            int64_t pos = url_ftell(pb);
             av_log(matroska->ctx, AV_LOG_ERROR,
                    "Read error at pos. %"PRIu64" (0x%"PRIx64")\n",
                    pos, pos);
@@ -541,7 +541,7 @@ static int ebml_read_num(MatroskaDemuxContext *matroska, ByteIOContext *pb,
         len_mask >>= 1;
     }
     if (read > max_size) {
-        offset_t pos = url_ftell(pb) - 1;
+        int64_t pos = url_ftell(pb) - 1;
         av_log(matroska->ctx, AV_LOG_ERROR,
                "Invalid EBML number size tag 0x%02x at pos %"PRIu64" (0x%"PRIx64")\n",
                (uint8_t) total, pos, pos);
@@ -1000,12 +1000,12 @@ static void matroska_execute_seekhead(MatroskaDemuxContext *matroska)
     EbmlList *seekhead_list = &matroska->seekhead;
     MatroskaSeekhead *seekhead = seekhead_list->elem;
     uint32_t level_up = matroska->level_up;
-    offset_t before_pos = url_ftell(matroska->ctx->pb);
+    int64_t before_pos = url_ftell(matroska->ctx->pb);
     MatroskaLevel level;
     int i;
 
     for (i=0; i<seekhead_list->nb_elem; i++) {
-        offset_t offset = seekhead[i].pos + matroska->segment_start;
+        int64_t offset = seekhead[i].pos + matroska->segment_start;
 
         if (seekhead[i].pos <= before_pos
             || seekhead[i].id == MATROSKA_ID_SEEKHEAD
@@ -1666,7 +1666,7 @@ static int matroska_parse_cluster(MatroskaDemuxContext *matroska)
     EbmlList *blocks_list;
     MatroskaBlock *blocks;
     int i, res;
-    offset_t pos = url_ftell(matroska->ctx->pb);
+    int64_t pos = url_ftell(matroska->ctx->pb);
     matroska->prev_pkt = NULL;
     if (matroska->has_cluster_id){
         /* For the first cluster we parse, its ID was already read as
diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index ef3140ee8b..5deb8deeae 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -29,7 +29,7 @@
 #include "libavcodec/mpeg4audio.h"
 
 typedef struct ebml_master {
-    offset_t        pos;                ///< absolute offset in the file where the master's elements start
+    int64_t         pos;                ///< absolute offset in the file where the master's elements start
     int             sizebytes;          ///< how many bytes were reserved for the size
 } ebml_master;
 
@@ -39,8 +39,8 @@ typedef struct mkv_seekhead_entry {
 } mkv_seekhead_entry;
 
 typedef struct mkv_seekhead {
-    offset_t                filepos;
-    offset_t                segment_offset;     ///< the file offset to the beginning of the segment
+    int64_t                 filepos;
+    int64_t                 segment_offset;     ///< the file offset to the beginning of the segment
     int                     reserved_size;      ///< -1 if appending to file
     int                     max_entries;
     mkv_seekhead_entry      *entries;
@@ -50,23 +50,23 @@ typedef struct mkv_seekhead {
 typedef struct {
     uint64_t        pts;
     int             tracknum;
-    offset_t        cluster_pos;        ///< file offset of the cluster containing the block
+    int64_t         cluster_pos;        ///< file offset of the cluster containing the block
 } mkv_cuepoint;
 
 typedef struct {
-    offset_t        segment_offset;
+    int64_t         segment_offset;
     mkv_cuepoint    *entries;
     int             num_entries;
 } mkv_cues;
 
 typedef struct MatroskaMuxContext {
     ebml_master     segment;
-    offset_t        segment_offset;
-    offset_t        segment_uid;
+    int64_t         segment_offset;
+    int64_t         segment_uid;
     ebml_master     cluster;
-    offset_t        cluster_pos;        ///< file offset of the current cluster
+    int64_t         cluster_pos;        ///< file offset of the current cluster
     uint64_t        cluster_pts;
-    offset_t        duration_offset;
+    int64_t         duration_offset;
     uint64_t        duration;
     mkv_seekhead    *main_seekhead;
     mkv_seekhead    *cluster_seekhead;
@@ -188,7 +188,7 @@ static void put_ebml_string(ByteIOContext *pb, unsigned int elementid, const cha
  */
 static void put_ebml_void(ByteIOContext *pb, uint64_t size)
 {
-    offset_t currentpos = url_ftell(pb);
+    int64_t currentpos = url_ftell(pb);
 
     assert(size >= 2);
 
@@ -214,7 +214,7 @@ static ebml_master start_ebml_master(ByteIOContext *pb, unsigned int elementid,
 
 static void end_ebml_master(ByteIOContext *pb, ebml_master master)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
 
     // leave the unknown size for masters when streaming
     if (url_is_streamed(pb))
@@ -244,7 +244,7 @@ static void put_xiph_size(ByteIOContext *pb, int size)
  * @param numelements The maximum number of elements that will be indexed
  *                    by this seek head, 0 if unlimited.
  */
-static mkv_seekhead * mkv_start_seekhead(ByteIOContext *pb, offset_t segment_offset, int numelements)
+static mkv_seekhead * mkv_start_seekhead(ByteIOContext *pb, int64_t segment_offset, int numelements)
 {
     mkv_seekhead *new_seekhead = av_mallocz(sizeof(mkv_seekhead));
     if (new_seekhead == NULL)
@@ -291,10 +291,10 @@ static int mkv_add_seekhead_entry(mkv_seekhead *seekhead, unsigned int elementid
  *
  * @return The file offset where the seekhead was written.
  */
-static offset_t mkv_write_seekhead(ByteIOContext *pb, mkv_seekhead *seekhead)
+static int64_t mkv_write_seekhead(ByteIOContext *pb, mkv_seekhead *seekhead)
 {
     ebml_master metaseek, seekentry;
-    offset_t currentpos;
+    int64_t currentpos;
     int i;
 
     currentpos = url_ftell(pb);
@@ -330,7 +330,7 @@ static offset_t mkv_write_seekhead(ByteIOContext *pb, mkv_seekhead *seekhead)
     return currentpos;
 }
 
-static mkv_cues * mkv_start_cues(offset_t segment_offset)
+static mkv_cues * mkv_start_cues(int64_t segment_offset)
 {
     mkv_cues *cues = av_mallocz(sizeof(mkv_cues));
     if (cues == NULL)
@@ -340,7 +340,7 @@ static mkv_cues * mkv_start_cues(offset_t segment_offset)
     return cues;
 }
 
-static int mkv_add_cuepoint(mkv_cues *cues, AVPacket *pkt, offset_t cluster_pos)
+static int mkv_add_cuepoint(mkv_cues *cues, AVPacket *pkt, int64_t cluster_pos)
 {
     mkv_cuepoint *entries = cues->entries;
 
@@ -356,10 +356,10 @@ static int mkv_add_cuepoint(mkv_cues *cues, AVPacket *pkt, offset_t cluster_pos)
     return 0;
 }
 
-static offset_t mkv_write_cues(ByteIOContext *pb, mkv_cues *cues, int num_tracks)
+static int64_t mkv_write_cues(ByteIOContext *pb, mkv_cues *cues, int num_tracks)
 {
     ebml_master cues_element;
-    offset_t currentpos;
+    int64_t currentpos;
     int i, j;
 
     currentpos = url_ftell(pb);
@@ -801,7 +801,7 @@ static int mkv_write_trailer(AVFormatContext *s)
 {
     MatroskaMuxContext *mkv = s->priv_data;
     ByteIOContext *pb = s->pb;
-    offset_t currentpos, second_seekhead, cuespos;
+    int64_t currentpos, second_seekhead, cuespos;
     int ret;
 
     end_ebml_master(pb, mkv->cluster);
diff --git a/libavformat/mmf.c b/libavformat/mmf.c
index 3941bee14a..5e6d4ebccb 100644
--- a/libavformat/mmf.c
+++ b/libavformat/mmf.c
@@ -23,8 +23,8 @@
 #include "riff.h"
 
 typedef struct {
-    offset_t atrpos, atsqpos, awapos;
-    offset_t data_size;
+    int64_t atrpos, atsqpos, awapos;
+    int64_t data_size;
 } MMFContext;
 
 static const int mmf_rates[] = { 4000, 8000, 11025, 22050, 44100 };
@@ -47,9 +47,9 @@ static int mmf_rate_code(int rate)
 }
 
 /* Copy of end_tag() from avienc.c, but for big-endian chunk size */
-static void end_tag_be(ByteIOContext *pb, offset_t start)
+static void end_tag_be(ByteIOContext *pb, int64_t start)
 {
-    offset_t pos;
+    int64_t pos;
 
     pos = url_ftell(pb);
     url_fseek(pb, start - 4, SEEK_SET);
@@ -61,7 +61,7 @@ static int mmf_write_header(AVFormatContext *s)
 {
     MMFContext *mmf = s->priv_data;
     ByteIOContext *pb = s->pb;
-    offset_t pos;
+    int64_t pos;
     int rate;
 
     rate = mmf_rate_code(s->streams[0]->codec->sample_rate);
@@ -129,7 +129,7 @@ static int mmf_write_trailer(AVFormatContext *s)
 {
     ByteIOContext *pb = s->pb;
     MMFContext *mmf = s->priv_data;
-    offset_t pos, size;
+    int64_t pos, size;
     int gatetime;
 
     if (!url_is_streamed(s->pb)) {
@@ -185,7 +185,7 @@ static int mmf_read_header(AVFormatContext *s,
     unsigned int tag;
     ByteIOContext *pb = s->pb;
     AVStream *st;
-    offset_t file_size, size;
+    int64_t file_size, size;
     int rate, params;
 
     tag = get_le32(pb);
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 27ddb1c718..8ff964e3c5 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -211,7 +211,7 @@ static int mov_read_default(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
         if (mov_default_parse_table[i].type == 0) { /* skip leaf atoms data */
             url_fskip(pb, a.size);
         } else {
-            offset_t start_pos = url_ftell(pb);
+            int64_t start_pos = url_ftell(pb);
             int64_t left;
             err = mov_default_parse_table[i].parse(c, pb, a);
             if (url_is_streamed(pb) && c->found_moov && c->found_mdat)
@@ -247,7 +247,7 @@ static int mov_read_dref(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
     for (i = 0; i < sc->drefs_count; i++) {
         MOV_dref_t *dref = &sc->drefs[i];
         uint32_t size = get_be32(pb);
-        offset_t next = url_ftell(pb) + size - 4;
+        int64_t next = url_ftell(pb) + size - 4;
 
         dref->type = get_le32(pb);
         get_be32(pb); // version + flags
@@ -723,7 +723,7 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
         enum CodecID id;
         int dref_id;
         MOV_atom_t a = { 0, 0, 0 };
-        offset_t start_pos = url_ftell(pb);
+        int64_t start_pos = url_ftell(pb);
         int size = get_be32(pb); /* size */
         uint32_t format = get_le32(pb); /* data format */
 
@@ -1181,7 +1181,7 @@ static int mov_read_ctts(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
 static void mov_build_index(MOVContext *mov, AVStream *st)
 {
     MOVStreamContext *sc = st->priv_data;
-    offset_t current_offset;
+    int64_t current_offset;
     int64_t current_dts = 0;
     unsigned int stts_index = 0;
     unsigned int stsc_index = 0;
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 4463b6950c..9588bb6185 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -75,16 +75,16 @@ typedef struct MOVContext {
     int     mode;
     int64_t time;
     int     nb_streams;
-    offset_t mdat_pos;
+    int64_t mdat_pos;
     uint64_t mdat_size;
     long    timescale;
     MOVTrack tracks[MAX_STREAMS];
 } MOVContext;
 
 //FIXME support 64 bit variant with wide placeholders
-static offset_t updateSize(ByteIOContext *pb, offset_t pos)
+static int64_t updateSize(ByteIOContext *pb, int64_t pos)
 {
-    offset_t curpos = url_ftell(pb);
+    int64_t curpos = url_ftell(pb);
     url_fseek(pb, pos, SEEK_SET);
     put_be32(pb, curpos - pos); /* rewrite size */
     url_fseek(pb, curpos, SEEK_SET);
@@ -97,7 +97,7 @@ static int mov_write_stco_tag(ByteIOContext *pb, MOVTrack *track)
 {
     int i;
     int mode64 = 0; //   use 32 bit size variant if possible
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); /* size */
     if (pos > UINT32_MAX) {
         mode64 = 1;
@@ -121,7 +121,7 @@ static int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack *track)
     int equalChunks = 1;
     int i, j, entries = 0, tst = -1, oldtst = -1;
 
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); /* size */
     put_tag(pb, "stsz");
     put_be32(pb, 0); /* version & flags */
@@ -156,9 +156,9 @@ static int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack *track)
 static int mov_write_stsc_tag(ByteIOContext *pb, MOVTrack *track)
 {
     int index = 0, oldval = -1, i;
-    offset_t entryPos, curpos;
+    int64_t entryPos, curpos;
 
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); /* size */
     put_tag(pb, "stsc");
     put_be32(pb, 0); // version & flags
@@ -185,9 +185,9 @@ static int mov_write_stsc_tag(ByteIOContext *pb, MOVTrack *track)
 /* Sync sample atom */
 static int mov_write_stss_tag(ByteIOContext *pb, MOVTrack *track)
 {
-    offset_t curpos, entryPos;
+    int64_t curpos, entryPos;
     int i, index = 0;
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); // size
     put_tag(pb, "stss");
     put_be32(pb, 0); // version & flags
@@ -300,7 +300,7 @@ static void putDescr(ByteIOContext *pb, int tag, unsigned int size)
 
 static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack *track) // Basic
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     int decoderSpecificInfoLen = track->vosLen ? descrLength(track->vosLen):0;
 
     put_be32(pb, 0); // size
@@ -354,7 +354,7 @@ static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack *track) // Basic
 
 static int mov_write_wave_tag(ByteIOContext *pb, MOVTrack *track)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
 
     put_be32(pb, 0);     /* size */
     put_tag(pb, "wave");
@@ -396,7 +396,7 @@ static int mov_write_glbl_tag(ByteIOContext *pb, MOVTrack *track)
 
 static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack *track)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     int version = track->mode == MODE_MOV &&
         (track->audio_vbr ||
          track->enc->codec_id == CODEC_ID_PCM_S32LE ||
@@ -487,7 +487,7 @@ static int mov_write_svq3_tag(ByteIOContext *pb)
 
 static int mov_write_avcc_tag(ByteIOContext *pb, MOVTrack *track)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
 
     put_be32(pb, 0);
     put_tag(pb, "avcC");
@@ -645,7 +645,7 @@ static int mov_write_uuid_tag_ipod(ByteIOContext *pb)
 
 static int mov_write_video_tag(ByteIOContext *pb, MOVTrack *track)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     char compressor_name[32];
 
     put_be32(pb, 0); /* size */
@@ -709,7 +709,7 @@ static int mov_write_video_tag(ByteIOContext *pb, MOVTrack *track)
 
 static int mov_write_stsd_tag(ByteIOContext *pb, MOVTrack *track)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); /* size */
     put_tag(pb, "stsd");
     put_be32(pb, 0); /* version & flags */
@@ -812,7 +812,7 @@ static int mov_write_dref_tag(ByteIOContext *pb)
 
 static int mov_write_stbl_tag(ByteIOContext *pb, MOVTrack *track)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); /* size */
     put_tag(pb, "stbl");
     mov_write_stsd_tag(pb, track);
@@ -831,7 +831,7 @@ static int mov_write_stbl_tag(ByteIOContext *pb, MOVTrack *track)
 
 static int mov_write_dinf_tag(ByteIOContext *pb)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); /* size */
     put_tag(pb, "dinf");
     mov_write_dref_tag(pb);
@@ -860,7 +860,7 @@ static int mov_write_vmhd_tag(ByteIOContext *pb)
 static int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack *track)
 {
     const char *descr, *hdlr, *hdlr_type;
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
 
     if (!track) { /* no media --> data handler */
         hdlr = "dhlr";
@@ -892,7 +892,7 @@ static int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack *track)
 
 static int mov_write_minf_tag(ByteIOContext *pb, MOVTrack *track)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); /* size */
     put_tag(pb, "minf");
     if(track->enc->codec_type == CODEC_TYPE_VIDEO)
@@ -938,7 +938,7 @@ static int mov_write_mdhd_tag(ByteIOContext *pb, MOVTrack *track)
 
 static int mov_write_mdia_tag(ByteIOContext *pb, MOVTrack *track)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); /* size */
     put_tag(pb, "mdia");
     mov_write_mdhd_tag(pb, track);
@@ -1040,7 +1040,7 @@ static int mov_write_uuid_tag_psp(ByteIOContext *pb, MOVTrack *mov)
 
 static int mov_write_trak_tag(ByteIOContext *pb, MOVTrack *track, AVStream *st)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); /* size */
     put_tag(pb, "trak");
     mov_write_tkhd_tag(pb, track, st);
@@ -1129,7 +1129,7 @@ static int mov_write_mvhd_tag(ByteIOContext *pb, MOVContext *mov)
 static int mov_write_itunes_hdlr_tag(ByteIOContext *pb, MOVContext *mov,
                                      AVFormatContext *s)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); /* size */
     put_tag(pb, "hdlr");
     put_be32(pb, 0);
@@ -1146,7 +1146,7 @@ static int mov_write_itunes_hdlr_tag(ByteIOContext *pb, MOVContext *mov,
 static int mov_write_string_data_tag(ByteIOContext *pb, const char *data, int long_style)
 {
     if(long_style){
-        offset_t pos = url_ftell(pb);
+        int64_t pos = url_ftell(pb);
         put_be32(pb, 0); /* size */
         put_tag(pb, "data");
         put_be32(pb, 1);
@@ -1164,7 +1164,7 @@ static int mov_write_string_data_tag(ByteIOContext *pb, const char *data, int lo
 static int mov_write_string_tag(ByteIOContext *pb, const char *name, const char *value, int long_style){
     int size = 0;
     if (value && value[0]) {
-        offset_t pos = url_ftell(pb);
+        int64_t pos = url_ftell(pb);
         put_be32(pb, 0); /* size */
         put_tag(pb, name);
         mov_write_string_data_tag(pb, value, long_style);
@@ -1190,11 +1190,11 @@ static int mov_write_trkn_tag(ByteIOContext *pb, MOVContext *mov,
 {
     int size = 0;
     if (s->track) {
-        offset_t pos = url_ftell(pb);
+        int64_t pos = url_ftell(pb);
         put_be32(pb, 0); /* size */
         put_tag(pb, "trkn");
         {
-            offset_t pos = url_ftell(pb);
+            int64_t pos = url_ftell(pb);
             put_be32(pb, 0); /* size */
             put_tag(pb, "data");
             put_be32(pb, 0);        // 8 bytes empty
@@ -1214,7 +1214,7 @@ static int mov_write_trkn_tag(ByteIOContext *pb, MOVContext *mov,
 static int mov_write_ilst_tag(ByteIOContext *pb, MOVContext *mov,
                               AVFormatContext *s)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); /* size */
     put_tag(pb, "ilst");
     mov_write_string_tag(pb, "\251nam", s->title         , 1);
@@ -1239,7 +1239,7 @@ static int mov_write_meta_tag(ByteIOContext *pb, MOVContext *mov,
     // only save meta tag if required
     if (s->title[0] || s->author[0] || s->album[0] || s->year ||
         s->comment[0] || s->genre[0] || s->track) {
-        offset_t pos = url_ftell(pb);
+        int64_t pos = url_ftell(pb);
         put_be32(pb, 0); /* size */
         put_tag(pb, "meta");
         put_be32(pb, 0);
@@ -1280,7 +1280,7 @@ static uint16_t language_code(const char *str)
 static int mov_write_3gp_udta_tag(ByteIOContext *pb, AVFormatContext *s,
                                   const char *tag, const char *str)
 {
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     if (!utf8len(str))
         return 0;
     put_be32(pb, 0);   /* size */
@@ -1311,7 +1311,7 @@ static int mov_write_udta_tag(ByteIOContext *pb, MOVContext *mov,
 
     if (!bitexact && (s->title[0] || s->author[0] || s->album[0] || s->year ||
                       s->comment[0] || s->genre[0]  || s->track)) {
-        offset_t pos = url_ftell(pb);
+        int64_t pos = url_ftell(pb);
 
         put_be32(pb, 0); /* size */
         put_tag(pb, "udta");
@@ -1358,7 +1358,7 @@ static void mov_write_psp_udta_tag(ByteIOContext *pb,
 
 static int mov_write_uuidusmt_tag(ByteIOContext *pb, AVFormatContext *s)
 {
-    offset_t pos, pos2;
+    int64_t pos, pos2;
 
     if (s->title[0]) {
         pos = url_ftell(pb);
@@ -1397,7 +1397,7 @@ static int mov_write_moov_tag(ByteIOContext *pb, MOVContext *mov,
                               AVFormatContext *s)
 {
     int i;
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     put_be32(pb, 0); /* size placeholder*/
     put_tag(pb, "moov");
     mov->timescale = globalTimescale;
@@ -1440,7 +1440,7 @@ static int mov_write_mdat_tag(ByteIOContext *pb, MOVContext *mov)
 static int mov_write_ftyp_tag(ByteIOContext *pb, AVFormatContext *s)
 {
     MOVContext *mov = s->priv_data;
-    offset_t pos = url_ftell(pb);
+    int64_t pos = url_ftell(pb);
     int has_h264 = 0, has_video = 0;
     int minor = 0x200;
     int i;
@@ -1732,7 +1732,7 @@ static int mov_write_trailer(AVFormatContext *s)
     int res = 0;
     int i;
 
-    offset_t moov_pos = url_ftell(pb);
+    int64_t moov_pos = url_ftell(pb);
 
     /* Write size of mdat tag */
     if (mov->mdat_size+8 <= UINT32_MAX) {
diff --git a/libavformat/mp3.c b/libavformat/mp3.c
index efe494402b..407d4f00d7 100644
--- a/libavformat/mp3.c
+++ b/libavformat/mp3.c
@@ -224,7 +224,7 @@ static void id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t fl
 {
     int isv34, tlen;
     uint32_t tag;
-    offset_t next;
+    int64_t next;
     char tmp[16];
     int taghdrlen;
     const char *reason;
@@ -402,11 +402,11 @@ static int mp3_read_probe(AVProbeData *p)
 /**
  * Try to find Xing/Info/VBRI tags and compute duration from info therein
  */
-static void mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, offset_t base)
+static void mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
 {
     uint32_t v, spf;
     int frames = -1; /* Total number of frames in file */
-    const offset_t xing_offtbl[2][2] = {{32, 17}, {17,9}};
+    const int64_t xing_offtbl[2][2] = {{32, 17}, {17,9}};
     MPADecodeContext c;
 
     v = get_be32(s->pb);
@@ -452,7 +452,7 @@ static int mp3_read_header(AVFormatContext *s,
     AVStream *st;
     uint8_t buf[ID3v1_TAG_SIZE];
     int len, ret, filesize;
-    offset_t off;
+    int64_t off;
 
     st = av_new_stream(s, 0);
     if (!st)
diff --git a/libavformat/mxf.h b/libavformat/mxf.h
index f4033de3dd..4c17a9ee85 100644
--- a/libavformat/mxf.h
+++ b/libavformat/mxf.h
@@ -46,7 +46,7 @@ enum MXFMetadataSetType {
 
 typedef struct {
     UID key;
-    offset_t offset;
+    int64_t offset;
     uint64_t length;
 } KLVPacket;
 
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index 55dc5202ec..98cf41d35f 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -238,7 +238,7 @@ static int mxf_decrypt_triplet(AVFormatContext *s, AVPacket *pkt, KLVPacket *klv
     static const uint8_t checkv[16] = {0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b};
     MXFContext *mxf = s->priv_data;
     ByteIOContext *pb = s->pb;
-    offset_t end = url_ftell(pb) + klv->length;
+    int64_t end = url_ftell(pb) + klv->length;
     uint64_t size;
     uint64_t orig_size;
     uint64_t plaintext_size;
diff --git a/libavformat/oggdec.c b/libavformat/oggdec.c
index 5bca3d156b..5176f6dd0e 100644
--- a/libavformat/oggdec.c
+++ b/libavformat/oggdec.c
@@ -438,7 +438,7 @@ ogg_get_length (AVFormatContext * s)
 {
     ogg_t *ogg = s->priv_data;
     int idx = -1, i;
-    offset_t size, end;
+    int64_t size, end;
 
     if(url_is_streamed(s->pb))
         return 0;
diff --git a/libavformat/oggenc.c b/libavformat/oggenc.c
index 9233c72ad0..b3f1b9f253 100644
--- a/libavformat/oggenc.c
+++ b/libavformat/oggenc.c
@@ -36,9 +36,9 @@ typedef struct {
     int eos;
 } OGGStreamContext;
 
-static void ogg_update_checksum(AVFormatContext *s, offset_t crc_offset)
+static void ogg_update_checksum(AVFormatContext *s, int64_t crc_offset)
 {
-    offset_t pos = url_ftell(s->pb);
+    int64_t pos = url_ftell(s->pb);
     uint32_t checksum = get_checksum(s->pb);
     url_fseek(s->pb, crc_offset, SEEK_SET);
     put_be32(s->pb, checksum);
@@ -49,7 +49,7 @@ static int ogg_write_page(AVFormatContext *s, const uint8_t *data, int size,
                           int64_t granule, int stream_index, int flags)
 {
     OGGStreamContext *oggstream = s->streams[stream_index]->priv_data;
-    offset_t crc_offset;
+    int64_t crc_offset;
     int page_segments, i;
 
     if (size >= 255*255) {
diff --git a/libavformat/raw.c b/libavformat/raw.c
index 65d13aa785..058e922931 100644
--- a/libavformat/raw.c
+++ b/libavformat/raw.c
@@ -48,7 +48,7 @@ static int flac_write_trailer(struct AVFormatContext *s)
     ByteIOContext *pb = s->pb;
     uint8_t *streaminfo = s->streams[0]->codec->extradata;
     int len = s->streams[0]->codec->extradata_size;
-    offset_t file_size;
+    int64_t file_size;
 
     if (streaminfo && len > 0 && !url_is_streamed(s->pb)) {
         file_size = url_ftell(pb);
diff --git a/libavformat/riff.c b/libavformat/riff.c
index e00c9e131d..7b2682ae1e 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -215,16 +215,16 @@ const AVCodecTag codec_wav_tags[] = {
 };
 
 #ifdef CONFIG_MUXERS
-offset_t start_tag(ByteIOContext *pb, const char *tag)
+int64_t start_tag(ByteIOContext *pb, const char *tag)
 {
     put_tag(pb, tag);
     put_le32(pb, 0);
     return url_ftell(pb);
 }
 
-void end_tag(ByteIOContext *pb, offset_t start)
+void end_tag(ByteIOContext *pb, int64_t start)
 {
-    offset_t pos;
+    int64_t pos;
 
     pos = url_ftell(pb);
     url_fseek(pb, start - 4, SEEK_SET);
diff --git a/libavformat/riff.h b/libavformat/riff.h
index 5fdb370d71..bd4e9f16ae 100644
--- a/libavformat/riff.h
+++ b/libavformat/riff.h
@@ -31,8 +31,8 @@
 #include "libavcodec/avcodec.h"
 #include "avio.h"
 
-offset_t start_tag(ByteIOContext *pb, const char *tag);
-void end_tag(ByteIOContext *pb, offset_t start);
+int64_t start_tag(ByteIOContext *pb, const char *tag);
+void end_tag(ByteIOContext *pb, int64_t start);
 
 typedef struct AVCodecTag {
     int id;
diff --git a/libavformat/segafilm.c b/libavformat/segafilm.c
index 1ea296db95..27ff06bc28 100644
--- a/libavformat/segafilm.c
+++ b/libavformat/segafilm.c
@@ -36,7 +36,7 @@
 
 typedef struct {
   int stream;
-  offset_t sample_offset;
+  int64_t sample_offset;
   unsigned int sample_size;
   int64_t pts;
   int keyframe;
diff --git a/libavformat/sierravmd.c b/libavformat/sierravmd.c
index 20c4f58022..0a5f2fa581 100644
--- a/libavformat/sierravmd.c
+++ b/libavformat/sierravmd.c
@@ -34,7 +34,7 @@
 
 typedef struct {
   int stream_index;
-  offset_t frame_offset;
+  int64_t frame_offset;
   unsigned int frame_size;
   int64_t pts;
   int keyframe;
@@ -77,7 +77,7 @@ static int vmd_read_header(AVFormatContext *s,
     unsigned int toc_offset;
     unsigned char *raw_frame_table;
     int raw_frame_table_size;
-    offset_t current_offset;
+    int64_t current_offset;
     int i, j;
     unsigned int total_frames;
     int64_t pts_inc = 1;
diff --git a/libavformat/smacker.c b/libavformat/smacker.c
index d11bddc145..3aa08bda1a 100644
--- a/libavformat/smacker.c
+++ b/libavformat/smacker.c
@@ -64,7 +64,7 @@ typedef struct SmackerContext {
     int buf_sizes[7];
     int stream_id[7];
     int curstream;
-    offset_t nextpos;
+    int64_t nextpos;
     int64_t aud_pts[7];
 } SmackerContext;
 
diff --git a/libavformat/swf.h b/libavformat/swf.h
index a138987ca4..93377dcccf 100644
--- a/libavformat/swf.h
+++ b/libavformat/swf.h
@@ -66,9 +66,9 @@
 
 typedef struct {
     int audio_stream_index;
-    offset_t duration_pos;
-    offset_t tag_pos;
-    offset_t vframes_pos;
+    int64_t duration_pos;
+    int64_t tag_pos;
+    int64_t vframes_pos;
     int samples_per_frame;
     int sound_samples;
     int swf_frame_number;
diff --git a/libavformat/swfenc.c b/libavformat/swfenc.c
index 2d341dcc47..52e3c7270f 100644
--- a/libavformat/swfenc.c
+++ b/libavformat/swfenc.c
@@ -44,7 +44,7 @@ static void put_swf_end_tag(AVFormatContext *s)
 {
     SWFContext *swf = s->priv_data;
     ByteIOContext *pb = s->pb;
-    offset_t pos;
+    int64_t pos;
     int tag_len, tag;
 
     pos = url_ftell(pb);
diff --git a/libavformat/utils.c b/libavformat/utils.c
index f6101e33b4..1f1a174a04 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -1701,7 +1701,7 @@ static void av_estimate_timings_from_bit_rate(AVFormatContext *ic)
 #define DURATION_MAX_READ_SIZE 250000
 
 /* only usable for MPEG-PS streams */
-static void av_estimate_timings_from_pts(AVFormatContext *ic, offset_t old_offset)
+static void av_estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
 {
     AVPacket pkt1, *pkt = &pkt1;
     AVStream *st;
@@ -1794,7 +1794,7 @@ static void av_estimate_timings_from_pts(AVFormatContext *ic, offset_t old_offse
     }
 }
 
-static void av_estimate_timings(AVFormatContext *ic, offset_t old_offset)
+static void av_estimate_timings(AVFormatContext *ic, int64_t old_offset)
 {
     int64_t file_size;
 
@@ -2003,7 +2003,7 @@ int av_find_stream_info(AVFormatContext *ic)
     int64_t last_dts[MAX_STREAMS];
     int duration_count[MAX_STREAMS]={0};
     double (*duration_error)[MAX_STD_TIMEBASES];
-    offset_t old_offset = url_ftell(ic->pb);
+    int64_t old_offset = url_ftell(ic->pb);
     int64_t codec_info_duration[MAX_STREAMS]={0};
     int codec_info_nb_frames[MAX_STREAMS]={0};
 
diff --git a/libavformat/wav.c b/libavformat/wav.c
index ba7315b360..01923d5aad 100644
--- a/libavformat/wav.c
+++ b/libavformat/wav.c
@@ -23,8 +23,8 @@
 #include "riff.h"
 
 typedef struct {
-    offset_t data;
-    offset_t data_end;
+    int64_t data;
+    int64_t data_end;
     int64_t minpts;
     int64_t maxpts;
     int last_duration;
@@ -35,7 +35,7 @@ static int wav_write_header(AVFormatContext *s)
 {
     WAVContext *wav = s->priv_data;
     ByteIOContext *pb = s->pb;
-    offset_t fmt, fact;
+    int64_t fmt, fact;
 
     put_tag(pb, "RIFF");
     put_le32(pb, 0); /* file length */
@@ -88,7 +88,7 @@ static int wav_write_trailer(AVFormatContext *s)
 {
     ByteIOContext *pb = s->pb;
     WAVContext *wav = s->priv_data;
-    offset_t file_size;
+    int64_t file_size;
 
     if (!url_is_streamed(s->pb)) {
         end_tag(pb, wav->data);