silly typo fixes

5 files changed, 11 insertions, 11 deletions

diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 2512e36020..43afa9f526 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -353,8 +353,8 @@ typedef struct AVProbeData {
 #define AVFMT_VARIABLE_FPS  0x0400 /**< Format allows variable fps. */
 #define AVFMT_NODIMENSIONS  0x0800 /**< Format does not need width/height */
 #define AVFMT_NOSTREAMS     0x1000 /**< Format does not require any streams */
-#define AVFMT_NOBINSEARCH   0x2000 /**< Format does not allow to fallback to binary search via read_timestamp */
-#define AVFMT_NOGENSEARCH   0x4000 /**< Format does not allow to fallback to generic search */
+#define AVFMT_NOBINSEARCH   0x2000 /**< Format does not allow to fall back on binary search via read_timestamp */
+#define AVFMT_NOGENSEARCH   0x4000 /**< Format does not allow to fall back on generic search */
 #define AVFMT_NO_BYTE_SEEK  0x8000 /**< Format does not allow seeking by bytes */
 #define AVFMT_ALLOW_FLUSH  0x10000 /**< Format allows flushing. If not set, the muxer will not receive a NULL packet in the write_packet function. */
 #define AVFMT_TS_NONSTRICT 0x20000 /**< Format does not require strictly
@@ -1388,7 +1388,7 @@ void avformat_close_input(AVFormatContext **s);
  *
  * @param s Media file handle, must be allocated with avformat_alloc_context().
  *          Its oformat field must be set to the desired output format;
- *          Its pb field must be set to an already openened AVIOContext.
+ *          Its pb field must be set to an already opened AVIOContext.
  * @param options  An AVDictionary filled with AVFormatContext and muxer-private options.
  *                 On return this parameter will be destroyed and replaced with a dict containing
  *                 options that were not found. May be NULL.
diff --git a/libavformat/idcin.c b/libavformat/idcin.c
index 536e6ee6ff..fa9976bae6 100644
--- a/libavformat/idcin.c
+++ b/libavformat/idcin.c
@@ -136,7 +136,7 @@ static int idcin_probe(AVProbeData *p)
     if (number > 2)
         return 0;
 
-    /* return half certainly since this check is a bit sketchy */
+    /* return half certainty since this check is a bit sketchy */
     return AVPROBE_SCORE_MAX / 2;
 }
 
diff --git a/libavformat/pmpdec.c b/libavformat/pmpdec.c
index 6cdce107c4..484be43ce9 100644
--- a/libavformat/pmpdec.c
+++ b/libavformat/pmpdec.c
@@ -157,7 +157,7 @@ static int pmp_seek(AVFormatContext *s, int stream_idx, int64_t ts, int flags)
 {
     PMPContext *pmp = s->priv_data;
     pmp->cur_stream = 0;
-    // fallback to default seek now
+    // fall back on default seek now
     return -1;
 }
 
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 89eb759bc9..e1acb254b6 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -722,7 +722,7 @@ int ff_get_audio_frame_size(AVCodecContext *enc, int size, int mux)
     if ((frame_size = av_get_audio_frame_duration(enc, size)) > 0)
         return frame_size;
 
-    /* fallback to using frame_size if muxing */
+    /* Fall back on using frame_size if muxing. */
     if (enc->frame_size > 1)
         return enc->frame_size;
 
@@ -1790,8 +1790,8 @@ int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int
         //try to seek via read_timestamp()
     }
 
-    //Fallback to old API if new is not implemented but old is
-    //Note the old has somewat different sematics
+    // Fall back on old API if new is not implemented but old is.
+    // Note the old API has somewhat different semantics.
     if(s->iformat->read_seek || 1)
         return av_seek_frame(s, stream_index, ts, flags | ((uint64_t)ts - min_ts > (uint64_t)max_ts - ts ? AVSEEK_FLAG_BACKWARD : 0));
 
diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c
index 1b427117ba..07df9232d7 100644
--- a/libavformat/wavdec.c
+++ b/libavformat/wavdec.c
@@ -73,9 +73,9 @@ static int wav_probe(AVProbeData *p)
         return 0;
     if (!memcmp(p->buf + 8, "WAVE", 4)) {
         if (!memcmp(p->buf, "RIFF", 4))
-            /* Since ACT demuxer has standard WAV header at top of it's
-             * own, returning score is decreased to avoid probe conflict
-             * between ACT and WAV. */
+            /* Since the ACT demuxer has a standard WAV header at the top of
+             * its own, the returned score is decreased to avoid a probe
+             * conflict between ACT and WAV. */
             return AVPROBE_SCORE_MAX - 1;
         else if (!memcmp(p->buf,      "RF64", 4) &&
                  !memcmp(p->buf + 12, "ds64", 4))