[FFmpeg-cvslog] r19723 - trunk/libavformat/mpegts.c

[schreter]

Author: schreter
Date: Thu Aug 27 00:33:48 2009
New Revision: 19723

Log:
Cosmetic changes in read_seek* routines.

Modified:
   trunk/libavformat/mpegts.c

Modified: trunk/libavformat/mpegts.c
==============================================================================
--- trunk/libavformat/mpegts.c	Thu Aug 27 00:10:35 2009	(r19722)
+++ trunk/libavformat/mpegts.c	Thu Aug 27 00:33:48 2009	(r19723)
@@ -1524,9 +1524,12 @@ static int64_t mpegts_get_pcr(AVFormatCo
     return timestamp;
 }
 
-static int read_seek(AVFormatContext *s, int stream_index, int64_t target_ts, int flags);
-
-static int read_seek2(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t target_ts, int64_t max_ts, int flags)
+static int read_seek2(AVFormatContext *s,
+                      int stream_index,
+                      int64_t min_ts,
+                      int64_t target_ts,
+                      int64_t max_ts,
+                      int flags)
 {
     int64_t pos;
 
@@ -1538,14 +1541,15 @@ static int read_seek2(AVFormatContext *s
     backup = ff_store_parser_state(s);
 
     // detect direction of seeking for search purposes
-    flags |= (target_ts - min_ts > (uint64_t)(max_ts - target_ts)) ? AVSEEK_FLAG_BACKWARD : 0;
+    flags |= (target_ts - min_ts > (uint64_t)(max_ts - target_ts)) ?
+             AVSEEK_FLAG_BACKWARD : 0;
 
     if (flags & AVSEEK_FLAG_BYTE) {
-        /* use position directly, we will search starting from it */
+        // use position directly, we will search starting from it
         pos = target_ts;
     } else {
-        /* search for some position with good timestamp match */
-        if(stream_index < 0){
+        // search for some position with good timestamp match
+        if (stream_index < 0) {
             stream_index_gen_search = av_find_default_stream_index(s);
             if (stream_index_gen_search < 0) {
                 ff_restore_parser_state(s, backup);
@@ -1553,8 +1557,10 @@ static int read_seek2(AVFormatContext *s
             }
 
             st = s->streams[stream_index_gen_search];
-            /* timestamp for default must be expressed in AV_TIME_BASE units */
-            ts_adj = av_rescale(target_ts, st->time_base.den, AV_TIME_BASE * (int64_t)st->time_base.num);
+            // timestamp for default must be expressed in AV_TIME_BASE units
+            ts_adj = av_rescale(target_ts,
+                                st->time_base.den,
+                                AV_TIME_BASE * (int64_t)st->time_base.num);
         } else {
             ts_adj = target_ts;
             stream_index_gen_search = stream_index;
@@ -1570,8 +1576,10 @@ static int read_seek2(AVFormatContext *s
         }
     }
 
-    /* search for actual matching keyframe/starting position for all streams */
-    if (ff_gen_syncpoint_search(s, stream_index, pos, min_ts, target_ts, max_ts, flags) < 0) {
+    // search for actual matching keyframe/starting position for all streams
+    if (ff_gen_syncpoint_search(s, stream_index, pos,
+                                min_ts, target_ts, max_ts,
+                                flags) < 0) {
         ff_restore_parser_state(s, backup);
         return -1;
     }
@@ -1584,17 +1592,16 @@ static int read_seek(AVFormatContext *s,
 {
     int ret;
     if (flags & AVSEEK_FLAG_BACKWARD) {
-        ret = read_seek2(s, stream_index, INT64_MIN, target_ts, target_ts, flags & ~AVSEEK_FLAG_BACKWARD);
-        if (ret < 0) {
-            // for compatibility reasons, seek to best-fitting timestamp
-            ret = read_seek2(s, stream_index, INT64_MIN, target_ts, INT64_MAX, flags & ~AVSEEK_FLAG_BACKWARD);
-        }
+        flags &= ~AVSEEK_FLAG_BACKWARD;
+        ret = read_seek2(s, stream_index, INT64_MIN, target_ts, target_ts, flags);
+        if (ret < 0)
+            // for compatibility reasons, seek to the best-fitting timestamp
+            ret = read_seek2(s, stream_index, INT64_MIN, target_ts, INT64_MAX, flags);
     } else {
         ret = read_seek2(s, stream_index, target_ts, target_ts, INT64_MAX, flags);
-        if (ret < 0) {
-            // for compatibility reasons, seek to best-fitting timestamp
+        if (ret < 0)
+            // for compatibility reasons, seek to the best-fitting timestamp
             ret = read_seek2(s, stream_index, INT64_MIN, target_ts, INT64_MAX, flags);
-        }
     }
     return ret;
 }