lavf: make some seeking functions private

Specifically av_update_cur_dts(), av_seek_frame_binary() and
av_gen_search().

They are not supposed to be called outside lavf.

libavformat/asfdec.c

@@ -1282,7 +1282,7 @@ static int asf_read_seek(AVFormatContext *s, int stream_index, int64_t pts, int
         }
     }
     /* no index or seeking by index failed */
-    if(av_seek_frame_binary(s, stream_index, pts, flags)<0)
+    if (ff_seek_frame_binary(s, stream_index, pts, flags) < 0)
         return -1;
     asf_reset_header(s);
     return 0;

libavformat/avformat.h

@@ -1388,40 +1388,20 @@ int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags);
 int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp,
                        int size, int distance, int flags);
 
-/**
- * Perform a binary search using av_index_search_timestamp() and
- * AVInputFormat.read_timestamp().
- * This is not supposed to be called directly by a user application,
- * but by demuxers.
- * @param target_ts target timestamp in the time base of the given stream
- * @param stream_index stream number
- */
+#if FF_API_SEEK_PUBLIC
+attribute_deprecated
 int av_seek_frame_binary(AVFormatContext *s, int stream_index,
                          int64_t target_ts, int flags);
-
-/**
- * Update cur_dts of all streams based on the given timestamp and AVStream.
- *
- * Stream ref_st unchanged, others set cur_dts in their native time base.
- * Only needed for timestamp wrapping or if (dts not set and pts!=dts).
- * @param timestamp new dts expressed in time_base of param ref_st
- * @param ref_st reference stream giving time_base of param timestamp
- */
+attribute_deprecated
 void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp);
-
-/**
- * Perform a binary search using read_timestamp().
- * This is not supposed to be called directly by a user application,
- * but by demuxers.
- * @param target_ts target timestamp in the time base of the given stream
- * @param stream_index stream number
- */
+attribute_deprecated
 int64_t av_gen_search(AVFormatContext *s, int stream_index,
                       int64_t target_ts, int64_t pos_min,
                       int64_t pos_max, int64_t pos_limit,
                       int64_t ts_min, int64_t ts_max,
                       int flags, int64_t *ts_ret,
                       int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ));
+#endif
 
 /**
  * media file output

libavformat/internal.h

@@ -253,4 +253,37 @@ enum CodecID ff_guess_image2_codec(const char *filename);
  */
 int64_t ff_iso8601_to_unix_time(const char *datestr);
 
+/**
+ * Perform a binary search using av_index_search_timestamp() and
+ * AVInputFormat.read_timestamp().
+ *
+ * @param target_ts target timestamp in the time base of the given stream
+ * @param stream_index stream number
+ */
+int ff_seek_frame_binary(AVFormatContext *s, int stream_index,
+                         int64_t target_ts, int flags);
+
+/**
+ * Update cur_dts of all streams based on the given timestamp and AVStream.
+ *
+ * Stream ref_st unchanged, others set cur_dts in their native time base.
+ * Only needed for timestamp wrapping or if (dts not set and pts!=dts).
+ * @param timestamp new dts expressed in time_base of param ref_st
+ * @param ref_st reference stream giving time_base of param timestamp
+ */
+void ff_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp);
+
+/**
+ * Perform a binary search using read_timestamp().
+ *
+ * @param target_ts target timestamp in the time base of the given stream
+ * @param stream_index stream number
+ */
+int64_t ff_gen_search(AVFormatContext *s, int stream_index,
+                      int64_t target_ts, int64_t pos_min,
+                      int64_t pos_max, int64_t pos_limit,
+                      int64_t ts_min, int64_t ts_max,
+                      int flags, int64_t *ts_ret,
+                      int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ));
+
 #endif /* AVFORMAT_INTERNAL_H */

libavformat/matroskadec.c

@@ -2002,7 +2002,7 @@ static int matroska_read_seek(AVFormatContext *s, int stream_index,
     matroska->skip_to_keyframe = !(flags & AVSEEK_FLAG_ANY);
     matroska->skip_to_timecode = st->index_entries[index].timestamp;
     matroska->done = 0;
-    av_update_cur_dts(s, st, st->index_entries[index].timestamp);
+    ff_update_cur_dts(s, st, st->index_entries[index].timestamp);
     return 0;
 }
 

libavformat/mpegts.c

@@ -1768,7 +1768,7 @@ static int read_seek2(AVFormatContext *s,
             ts_adj = target_ts;
             stream_index_gen_search = stream_index;
         }
-        pos = av_gen_search(s, stream_index_gen_search, ts_adj,
+        pos = ff_gen_search(s, stream_index_gen_search, ts_adj,
                             0, INT64_MAX, -1,
                             AV_NOPTS_VALUE,
                             AV_NOPTS_VALUE,
@@ -1816,7 +1816,7 @@ static int read_seek(AVFormatContext *s, int stream_index, int64_t target_ts, in
     uint8_t buf[TS_PACKET_SIZE];
     int64_t pos;
 
-    if(av_seek_frame_binary(s, stream_index, target_ts, flags) < 0)
+    if (ff_seek_frame_binary(s, stream_index, target_ts, flags) < 0)
         return -1;
 
     pos= avio_tell(s->pb);

libavformat/mxfdec.c

@@ -49,6 +49,7 @@
 #include "libavutil/mathematics.h"
 #include "libavcodec/bytestream.h"
 #include "avformat.h"
+#include "internal.h"
 #include "mxf.h"
 
 typedef struct {
@@ -1020,7 +1021,7 @@ static int mxf_read_seek(AVFormatContext *s, int stream_index, int64_t sample_ti
         sample_time = 0;
     seconds = av_rescale(sample_time, st->time_base.num, st->time_base.den);
     avio_seek(s->pb, (s->bit_rate * seconds) >> 3, SEEK_SET);
-    av_update_cur_dts(s, st, sample_time);
+    ff_update_cur_dts(s, st, sample_time);
     return 0;
 }
 

libavformat/nutdec.c

@@ -874,16 +874,16 @@ static int read_seek(AVFormatContext *s, int stream_index, int64_t pts, int flag
                      (void **) next_node);
         av_log(s, AV_LOG_DEBUG, "%"PRIu64"-%"PRIu64" %"PRId64"-%"PRId64"\n", next_node[0]->pos, next_node[1]->pos,
                                                     next_node[0]->ts , next_node[1]->ts);
-        pos= av_gen_search(s, -1, dummy.ts, next_node[0]->pos, next_node[1]->pos, next_node[1]->pos,
-                                            next_node[0]->ts , next_node[1]->ts, AVSEEK_FLAG_BACKWARD, &ts, nut_read_timestamp);
+        pos = ff_gen_search(s, -1, dummy.ts, next_node[0]->pos, next_node[1]->pos, next_node[1]->pos,
+                                             next_node[0]->ts , next_node[1]->ts, AVSEEK_FLAG_BACKWARD, &ts, nut_read_timestamp);
 
         if(!(flags & AVSEEK_FLAG_BACKWARD)){
             dummy.pos= pos+16;
             next_node[1]= &nopts_sp;
             av_tree_find(nut->syncpoints, &dummy, (void *) ff_nut_sp_pos_cmp,
                          (void **) next_node);
-            pos2= av_gen_search(s, -2, dummy.pos, next_node[0]->pos     , next_node[1]->pos, next_node[1]->pos,
-                                                next_node[0]->back_ptr, next_node[1]->back_ptr, flags, &ts, nut_read_timestamp);
+            pos2 = ff_gen_search(s, -2, dummy.pos, next_node[0]->pos     , next_node[1]->pos, next_node[1]->pos,
+                                                   next_node[0]->back_ptr, next_node[1]->back_ptr, flags, &ts, nut_read_timestamp);
             if(pos2>=0)
                 pos= pos2;
             //FIXME dir but I think it does not matter

libavformat/oggdec.c

@@ -33,6 +33,7 @@
 #include <stdio.h>
 #include "oggdec.h"
 #include "avformat.h"
+#include "internal.h"
 #include "vorbiscomment.h"
 
 #define MAX_PAGE_SIZE 65307
@@ -637,7 +638,7 @@ static int ogg_read_seek(AVFormatContext *s, int stream_index,
         && !(flags & AVSEEK_FLAG_ANY))
         os->keyframe_seek = 1;
 
-    ret = av_seek_frame_binary(s, stream_index, timestamp, flags);
+    ret = ff_seek_frame_binary(s, stream_index, timestamp, flags);
     os = ogg->streams + stream_index;
     if (ret < 0)
         os->keyframe_seek = 0;

libavformat/utils.c

@@ -1374,7 +1374,15 @@ void ff_read_frame_flush(AVFormatContext *s)
     }
 }
 
-void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp){
+#if FF_API_SEEK_PUBLIC
+void av_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp)
+{
+    return ff_update_cur_dts(s, ref_st, timestamp);
+}
+#endif
+
+void ff_update_cur_dts(AVFormatContext *s, AVStream *ref_st, int64_t timestamp)
+{
     int i;
 
     for(i = 0; i < s->nb_streams; i++) {
@@ -1494,7 +1502,14 @@ int av_index_search_timestamp(AVStream *st, int64_t wanted_timestamp,
                                      wanted_timestamp, flags);
 }
 
+#if FF_API_SEEK_PUBLIC
 int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags){
+    return ff_seek_frame_binary(s, stream_index, target_ts, flags);
+}
+#endif
+
+int ff_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags)
+{
     AVInputFormat *avif= s->iformat;
     int64_t av_uninit(pos_min), av_uninit(pos_max), pos, pos_limit;
     int64_t ts_min, ts_max, ts;
@@ -1541,7 +1556,7 @@ int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts
         }
     }
 
-    pos= av_gen_search(s, stream_index, target_ts, pos_min, pos_max, pos_limit, ts_min, ts_max, flags, &ts, avif->read_timestamp);
+    pos= ff_gen_search(s, stream_index, target_ts, pos_min, pos_max, pos_limit, ts_min, ts_max, flags, &ts, avif->read_timestamp);
     if(pos<0)
         return -1;
 
@@ -1549,12 +1564,28 @@ int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts
     if ((ret = avio_seek(s->pb, pos, SEEK_SET)) < 0)
         return ret;
 
-    av_update_cur_dts(s, st, ts);
+    ff_update_cur_dts(s, st, ts);
 
     return 0;
 }
 
-int64_t av_gen_search(AVFormatContext *s, int stream_index, int64_t target_ts, int64_t pos_min, int64_t pos_max, int64_t pos_limit, int64_t ts_min, int64_t ts_max, int flags, int64_t *ts_ret, int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t )){
+#if FF_API_SEEK_PUBLIC
+int64_t av_gen_search(AVFormatContext *s, int stream_index, int64_t target_ts,
+                      int64_t pos_min, int64_t pos_max, int64_t pos_limit,
+                      int64_t ts_min, int64_t ts_max, int flags, int64_t *ts_ret,
+                      int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
+{
+    return ff_gen_search(s, stream_index, target_ts, pos_min, pos_max,
+                         pos_limit, ts_min, ts_max, flags, ts_ret,
+                         read_timestamp);
+}
+#endif
+
+int64_t ff_gen_search(AVFormatContext *s, int stream_index, int64_t target_ts,
+                      int64_t pos_min, int64_t pos_max, int64_t pos_limit,
+                      int64_t ts_min, int64_t ts_max, int flags, int64_t *ts_ret,
+                      int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
+{
     int64_t pos, ts;
     int64_t start_pos, filesize;
     int no_change;
@@ -1708,7 +1739,7 @@ static int seek_frame_generic(AVFormatContext *s,
             ie= &st->index_entries[st->nb_index_entries-1];
             if ((ret = avio_seek(s->pb, ie->pos, SEEK_SET)) < 0)
                 return ret;
-            av_update_cur_dts(s, st, ie->timestamp);
+            ff_update_cur_dts(s, st, ie->timestamp);
         }else{
             if ((ret = avio_seek(s->pb, s->data_offset, SEEK_SET)) < 0)
                 return ret;
@@ -1739,7 +1770,7 @@ static int seek_frame_generic(AVFormatContext *s,
     ie = &st->index_entries[index];
     if ((ret = avio_seek(s->pb, ie->pos, SEEK_SET)) < 0)
         return ret;
-    av_update_cur_dts(s, st, ie->timestamp);
+    ff_update_cur_dts(s, st, ie->timestamp);
 
     return 0;
 }
@@ -1778,7 +1809,7 @@ int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int f
 
     if (s->iformat->read_timestamp && !(s->iformat->flags & AVFMT_NOBINSEARCH)) {
         ff_read_frame_flush(s);
-        return av_seek_frame_binary(s, stream_index, timestamp, flags);
+        return ff_seek_frame_binary(s, stream_index, timestamp, flags);
     } else if (!(s->iformat->flags & AVFMT_NOGENSEARCH)) {
         ff_read_frame_flush(s);
         return seek_frame_generic(s, stream_index, timestamp, flags);

libavformat/version.h

@@ -104,5 +104,8 @@
 #ifndef FF_API_STREAM_COPY
 #define FF_API_STREAM_COPY             (LIBAVFORMAT_VERSION_MAJOR < 54)
 #endif
+#ifndef FF_API_SEEK_PUBLIC
+#define FF_API_SEEK_PUBLIC             (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
 
 #endif /* AVFORMAT_VERSION_H */