Fix a bunch of common typos.

14 files changed, 22 insertions, 21 deletions

diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index ab1cd3fcf1..eff60094b1 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -685,7 +685,8 @@ typedef struct AVStream {
 
     /**
      * last packet in packet_buffer for this stream when muxing.
-     * used internally, NOT PART OF PUBLIC API, dont read or write from outside of libav*
+     * Used internally, NOT PART OF PUBLIC API, do not read or
+     * write from outside of libav*
      */
     struct AVPacketList *last_in_packet_buffer;
 #endif
@@ -709,7 +710,7 @@ typedef struct AVStream {
     int codec_info_nb_frames;
 
     /**
-     * Stream informations used internally by av_find_stream_info()
+     * Stream information used internally by av_find_stream_info()
      */
 #define MAX_STD_TIMEBASES (60*12+5)
     struct {
@@ -877,7 +878,7 @@ typedef struct AVFormatContext {
     /**
      * Decoding: duration of the stream, in AV_TIME_BASE fractional
      * seconds. Only set this value if you know none of the individual stream
-     * durations and also dont set any of them. This is deduced from the
+     * durations and also do not set any of them. This is deduced from the
      * AVStream values if not set.
      */
     int64_t duration;
diff --git a/libavformat/flvenc.c b/libavformat/flvenc.c
index d349ffdd70..84466aa8a0 100644
--- a/libavformat/flvenc.c
+++ b/libavformat/flvenc.c
@@ -361,7 +361,7 @@ static int flv_write_trailer(AVFormatContext *s)
 
     file_size = avio_tell(pb);
 
-    /* update informations */
+    /* update information */
     avio_seek(pb, flv->duration_offset, SEEK_SET);
     put_amf_double(pb, flv->duration / (double)1000);
     avio_seek(pb, flv->filesize_offset, SEEK_SET);
@@ -412,7 +412,7 @@ static int flv_write_packet(AVFormatContext *s, AVPacket *pkt)
     }
 
     if (enc->codec_id == CODEC_ID_H264) {
-        /* check if extradata looks like mp4 formated */
+        /* check if extradata looks like MP4 */
         if (enc->extradata_size > 0 && *(uint8_t*)enc->extradata != 1) {
             if (ff_avc_parse_nal_units_buf(pkt->data, &data, &size) < 0)
                 return -1;
diff --git a/libavformat/id3v2.c b/libavformat/id3v2.c
index 92f25901e5..deb652d60c 100644
--- a/libavformat/id3v2.c
+++ b/libavformat/id3v2.c
@@ -142,7 +142,7 @@ static void free_geobtag(void *obj)
  * @param maxread Pointer to maximum number of characters to read from the
  * AVIOContext. After execution the value is decremented by the number of bytes
  * actually read.
- * @returns 0 if no error occured, dst is uninitialized on error
+ * @returns 0 if no error occurred, dst is uninitialized on error
  */
 static int decode_str(AVFormatContext *s, AVIOContext *pb, int encoding,
                       uint8_t **dst, int *maxread)
diff --git a/libavformat/img2.c b/libavformat/img2.c
index 898e6a4ca4..2af561c2ce 100644
--- a/libavformat/img2.c
+++ b/libavformat/img2.c
@@ -432,7 +432,7 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
                      (!st->codec->extradata_size &&
                       AV_RL32(pkt->data+4) != MKTAG('j','P',' ',' '))){ // signature
             error:
-                av_log(s, AV_LOG_ERROR, "malformated jpeg2000 codestream\n");
+                av_log(s, AV_LOG_ERROR, "malformed JPEG 2000 codestream\n");
                 return -1;
             }
         }
diff --git a/libavformat/iv8.c b/libavformat/iv8.c
index 78f71e82af..4f25441e8c 100644
--- a/libavformat/iv8.c
+++ b/libavformat/iv8.c
@@ -24,7 +24,7 @@
 
 static int probe(AVProbeData *p)
 {
-    // the single file i have starts with that, i dont know if others do too
+    // the single file I have starts with that, I do not know if others do, too
     if(   p->buf[0] == 1
        && p->buf[1] == 1
        && p->buf[2] == 3
diff --git a/libavformat/mms.h b/libavformat/mms.h
index 36e772c7f9..5235581645 100644
--- a/libavformat/mms.h
+++ b/libavformat/mms.h
@@ -33,7 +33,7 @@ typedef struct {
 
     /** Buffer for outgoing packets. */
     /*@{*/
-    uint8_t *write_out_ptr;              ///< Pointer for writting the buffer.
+    uint8_t *write_out_ptr;              ///< Pointer for writing the buffer.
     uint8_t out_buffer[512];            ///< Buffer for outgoing packet.
     /*@}*/
 
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 36a799d728..09932f83fb 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -243,7 +243,7 @@ static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
 
 /**
  * This function writes extradata "as is".
- * Extradata must be formated like a valid atom (with size and tag)
+ * Extradata must be formatted like a valid atom (with size and tag).
  */
 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
 {
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index f7045cee5e..37ffae9f66 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -456,7 +456,7 @@ static inline int get16(const uint8_t **pp, const uint8_t *p_end)
     return c;
 }
 
-/* read and allocate a DVB string preceeded by its length */
+/* read and allocate a DVB string preceded by its length */
 static char *getstr8(const uint8_t **pp, const uint8_t *p_end)
 {
     int len;
@@ -1672,7 +1672,7 @@ static int handle_packet(MpegTSContext *ts, const uint8_t *packet)
         return 0;
     p = packet + 4;
     if (has_adaptation) {
-        /* skip adapation field */
+        /* skip adaptation field */
         p += p[0] + 1;
     }
     /* if past the end of packet, ignore */
@@ -1750,7 +1750,7 @@ static int read_packet(AVFormatContext *s, uint8_t *buf, int raw_packet_size)
         len = avio_read(pb, buf, TS_PACKET_SIZE);
         if (len != TS_PACKET_SIZE)
             return len < 0 ? len : AVERROR_EOF;
-        /* check paquet sync byte */
+        /* check packet sync byte */
         if (buf[0] != 0x47) {
             /* find a new packet start */
             avio_seek(pb, -TS_PACKET_SIZE, SEEK_CUR);
@@ -1892,7 +1892,7 @@ static int mpegts_read_header(AVFormatContext *s,
     if (s->iformat == &ff_mpegts_demuxer) {
         /* normal demux */
 
-        /* first do a scaning to get all the services */
+        /* first do a scan to get all the services */
         if (pb->seekable && avio_seek(pb, pos, SEEK_SET) < 0)
             av_log(s, AV_LOG_ERROR, "Unable to seek back to the start\n");
 
diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
index c36c672053..32a759c55b 100644
--- a/libavformat/mpegtsenc.c
+++ b/libavformat/mpegtsenc.c
@@ -944,7 +944,7 @@ static int mpegts_write_packet(AVFormatContext *s, AVPacket *pkt)
         uint32_t state = -1;
 
         if (pkt->size < 5 || AV_RB32(pkt->data) != 0x0000001) {
-            av_log(s, AV_LOG_ERROR, "h264 bitstream malformated, "
+            av_log(s, AV_LOG_ERROR, "H.264 bitstream malformed, "
                    "no startcode found, use -vbsf h264_mp4toannexb\n");
             return -1;
         }
diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index a7eb432759..78d3650e03 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -68,7 +68,7 @@ typedef struct {
     int index;               ///< index in mxf_essence_container_uls table
     const UID *codec_ul;
     int order;               ///< interleaving order if dts are equal
-    int interlaced;          ///< wether picture is interlaced
+    int interlaced;          ///< whether picture is interlaced
     int temporal_reordering;
     AVRational aspect_ratio; ///< display aspect ratio
     int closed_gop;          ///< gop is closed, used in mpeg-2 frame parsing
diff --git a/libavformat/rdt.c b/libavformat/rdt.c
index f492805d13..c06583e105 100644
--- a/libavformat/rdt.c
+++ b/libavformat/rdt.c
@@ -484,7 +484,7 @@ real_parse_asm_rulebook(AVFormatContext *s, AVStream *orig_st,
      * is set and once for if it isn't. We only read the first because we
      * don't care much (that's what the "odd" variable is for).
      * Each rule contains a set of one or more statements, optionally
-     * preceeded by a single condition. If there's a condition, the rule
+     * preceded by a single condition. If there's a condition, the rule
      * starts with a '#'. Multiple conditions are merged between brackets,
      * so there are never multiple conditions spread out over separate
      * statements. Generally, these conditions are bitrate limits (min/max)
diff --git a/libavformat/rtp.h b/libavformat/rtp.h
index 4f35142afd..e619008007 100644
--- a/libavformat/rtp.h
+++ b/libavformat/rtp.h
@@ -72,7 +72,7 @@ enum CodecID ff_rtp_codec_id(const char *buf, enum AVMediaType codec_type);
 #define RTP_VERSION 2
 #define RTP_MAX_SDES 256   /**< maximum text length for SDES */
 
-/* RTCP paquets use 0.5 % of the bandwidth */
+/* RTCP packets use 0.5% of the bandwidth */
 #define RTCP_TX_RATIO_NUM 5
 #define RTCP_TX_RATIO_DEN 1000
 
diff --git a/libavformat/udp.c b/libavformat/udp.c
index 529114a860..2bdd3dc773 100644
--- a/libavformat/udp.c
+++ b/libavformat/udp.c
@@ -372,7 +372,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
         goto fail;
 
     /* Follow the requested reuse option, unless it's multicast in which
-     * case enable reuse unless explicitely disabled.
+     * case enable reuse unless explicitly disabled.
      */
     if (s->reuse_socket || (s->is_multicast && !reuse_specified)) {
         s->reuse_socket = 1;
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 1df042f0fe..8b749ad7fc 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -770,7 +770,7 @@ int av_read_packet(AVFormatContext *s, AVPacket *pkt)
             memset(pd->buf+pd->buf_size, 0, AVPROBE_PADDING_SIZE);
 
             if(av_log2(pd->buf_size) != av_log2(pd->buf_size - pkt->size)){
-                //FIXME we dont reduce score to 0 for the case of running out of buffer space in bytes
+                //FIXME we do not reduce score to 0 for the case of running out of buffer space in bytes
                 set_codec_from_probe_data(s, st, pd, st->probe_packets > 0 ? AVPROBE_SCORE_MAX/4 : 0);
                 if(st->codec->codec_id != CODEC_ID_PROBE){
                     pd->buf_size=0;
@@ -1081,7 +1081,7 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
             FFSWAP(int64_t, st->pts_buffer[i], st->pts_buffer[i+1]);
         if(pkt->dts == AV_NOPTS_VALUE)
             pkt->dts= st->pts_buffer[0];
-        if(st->codec->codec_id == CODEC_ID_H264){ //we skiped it above so we try here
+        if(st->codec->codec_id == CODEC_ID_H264){ // we skipped it above so we try here
             update_initial_timestamps(s, pkt->stream_index, pkt->dts, pkt->pts); // this should happen on the first packet
         }
         if(pkt->dts > st->cur_dts)