Fix a bunch of common typos.

avconv.c

@@ -3682,7 +3682,7 @@ static void opt_output_file(void *optctx, const char *filename)
     }
 
     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
-        /* test if it already exists to avoid loosing precious files */
+        /* test if it already exists to avoid losing precious files */
         assert_file_overwrite(filename);
 
         /* open the file */

doc/avserver.texi

@@ -150,7 +150,7 @@ that only captures in stereo and also requires that one channel be flipped.
 If you are one of these people, then export 'AUDIO_FLIP_LEFT=1' before
 starting avconv.
 
-@subsection The audio and video loose sync after a while.
+@subsection The audio and video lose sync after a while.
 
 Yes, they do.
 

doc/developer.texi

@@ -49,7 +49,7 @@ mailing list.
 The code is written in K&R C style. That means the following:
 @itemize @bullet
 @item
-The control statements are formatted by putting space betwen the statement
+The control statements are formatted by putting space between the statement
 and parenthesis in the following way:
 @example
 for (i = 0; i < filter->input_count; i++) @{
@@ -79,7 +79,7 @@ if (!pic || !picref)
     goto fail;
 @end example
 @item
-Do not put spaces immediately inside parenthesis. @samp{if (ret)} is
+Do not put spaces immediately inside parentheses. @samp{if (ret)} is
 a valid style; @samp{if ( ret )} is not.
 @end itemize
 

doc/eval.texi

@@ -1,7 +1,7 @@
 @chapter Expression Evaluation
 @c man begin EXPRESSION EVALUATION
 
-When evaluating an arithemetic expression, Libav uses an internal
+When evaluating an arithmetic expression, Libav uses an internal
 formula evaluator, implemented through the @file{libavutil/eval.h}
 interface.
 
@@ -53,7 +53,7 @@ returns the value stored in the internal variable.
 
 @item ld(var)
 Allow to load the value of the internal variable with number
-@var{var}, which was previosly stored with st(@var{var}, @var{expr}).
+@var{var}, which was previously stored with st(@var{var}, @var{expr}).
 The function returns the loaded value.
 
 @item while(cond, expr)

doc/filters.texi

@@ -200,7 +200,7 @@ input plane. They are expressions, and can contain the following
 constants:
 @table @option
 @item w, h
-the input width and heigth in pixels
+the input width and height in pixels
 
 @item cw, ch
 the input chroma image width and height in pixels
@@ -888,7 +888,7 @@ the corresponding mathematical approximated values for e
 (euler number), pi (greek PI), PHI (golden ratio)
 
 @item w, h
-the input width and heigth
+the input width and height
 
 @item val
 input value for the pixel component
@@ -992,7 +992,7 @@ The filter takes the parameters: @var{filter_name}@{:=@}@var{filter_params}.
 filter. If not specified the default values are assumed.
 
 Refer to the official libopencv documentation for more precise
-informations:
+information:
 @url{http://opencv.willowgarage.com/documentation/c/image_filtering.html}
 
 Follows the list of supported libopencv filters.
@@ -1008,7 +1008,7 @@ It accepts the parameters: @var{struct_el}:@var{nb_iterations}.
 @var{struct_el} represents a structuring element, and has the syntax:
 @var{cols}x@var{rows}+@var{anchor_x}x@var{anchor_y}/@var{shape}
 
-@var{cols} and @var{rows} represent the number of colums and rows of
+@var{cols} and @var{rows} represent the number of columns and rows of
 the structuring element, @var{anchor_x} and @var{anchor_y} the anchor
 point, and @var{shape} the shape for the structuring element, and
 can be one of the values "rect", "cross", "ellipse", "custom".
@@ -1608,7 +1608,7 @@ seconds
 
 @item pos
 position of the frame in the input stream, -1 if this information in
-unavailable and/or meanigless (for example in case of synthetic video)
+unavailable and/or meaningless (for example in case of synthetic video)
 
 @item fmt
 pixel format name
@@ -1825,7 +1825,7 @@ through the interface defined in @file{libavfilter/vsrc_buffer.h}.
 It accepts the following parameters:
 @var{width}:@var{height}:@var{pix_fmt_string}:@var{timebase_num}:@var{timebase_den}:@var{sample_aspect_ratio_num}:@var{sample_aspect_ratio.den}
 
-All the parameters need to be explicitely defined.
+All the parameters need to be explicitly defined.
 
 Follows the list of the accepted parameters.
 
@@ -2017,7 +2017,7 @@ separated by ":". The description of the accepted options follows.
 
 @item size, s
 Specify the size of the sourced video, it may be a string of the form
-@var{width}x@var{heigth}, or the name of a size abbreviation. The
+@var{width}x@var{height}, or the name of a size abbreviation. The
 default value is "320x240".
 
 @item rate, r

doc/general.texi

@@ -485,7 +485,7 @@ following image formats are supported:
 @item id RoQ video           @tab  X  @tab  X
     @tab Used in Quake III, Jedi Knight 2, other computer games.
 @item IFF ILBM               @tab     @tab  X
-    @tab IFF interlaved bitmap
+    @tab IFF interleaved bitmap
 @item IFF ByteRun1           @tab     @tab  X
     @tab IFF run length encoded bitmap
 @item Intel H.263            @tab     @tab  X

doc/protocols.texi

@@ -155,8 +155,8 @@ be seekable, so they will fail with the pipe output protocol.
 
 Real-Time Messaging Protocol.
 
-The Real-Time Messaging Protocol (RTMP) is used for streaming multime‐
+The Real-Time Messaging Protocol (RTMP) is used for streaming multimedia
-dia content across a TCP/IP network.
+content across a TCP/IP network.
 
 The required syntax is:
 @example
@@ -195,7 +195,7 @@ Real-Time Messaging Protocol and its variants supported through
 librtmp.
 
 Requires the presence of the librtmp headers and library during
-configuration. You need to explicitely configure the build with
+configuration. You need to explicitly configure the build with
 "--enable-librtmp". If enabled this will replace the native RTMP
 protocol.
 

doc/soc.txt

@@ -18,7 +18,7 @@ essential that changes to their codebase are publicly visible, clean and
 easy reviewable that again leads us to:
 * use of a revision control system like git
 * separation of cosmetic from non-cosmetic changes (this is almost entirely
-  ignored by mentors and students in soc 2006 which might lead to a suprise
+  ignored by mentors and students in soc 2006 which might lead to a surprise
   when the code will be reviewed at the end before a possible inclusion in
   Libav, individual changes were generally not reviewable due to cosmetics).
 * frequent commits, so that comments can be provided early

ffmpeg.c

@@ -3797,7 +3797,7 @@ static void opt_output_file(void *optctx, const char *filename)
     }
 
     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
-        /* test if it already exists to avoid loosing precious files */
+        /* test if it already exists to avoid losing precious files */
         if (!file_overwrite &&
             (strchr(filename, ':') == NULL ||
              filename[1] == ':' ||

libavcodec/avcodec.h

@@ -1274,7 +1274,7 @@ typedef struct AVCodecContext {
      * Some codecs need additional format info. It is stored here.
      * If any muxer uses this then ALL demuxers/parsers AND encoders for the
      * specific codec MUST set it correctly otherwise stream copy breaks.
-     * In general use of this field by muxers is not recommanded.
+     * In general use of this field by muxers is not recommended.
      * - encoding: Set by libavcodec.
      * - decoding: Set by libavcodec. (FIXME: Is this OK?)
      */
@@ -3444,7 +3444,7 @@ typedef struct ReSampleContext ReSampleContext;
  * @param linear           if 1 then the used FIR filter will be linearly interpolated
                            between the 2 closest, if 0 the closest will be used
  * @param cutoff           cutoff frequency, 1.0 corresponds to half the output sampling rate
- * @return allocated ReSampleContext, NULL if error occured
+ * @return allocated ReSampleContext, NULL if error occurred
  */
 ReSampleContext *av_audio_resample_init(int output_channels, int input_channels,
                                         int output_rate, int input_rate,

libavcodec/bitstream.c

@@ -103,7 +103,7 @@ static int alloc_table(VLC *vlc, int size, int use_static)
     vlc->table_size += size;
     if (vlc->table_size > vlc->table_allocated) {
         if(use_static)
-            abort(); //cant do anything, init_vlc() is used with too little memory
+            abort(); // cannot do anything, init_vlc() is used with too little memory
         vlc->table_allocated += (1 << vlc->bits);
         vlc->table = av_realloc(vlc->table,
                                 sizeof(VLC_TYPE) * 2 * vlc->table_allocated);

libavcodec/dsputil.h

@@ -498,8 +498,8 @@ typedef struct DSPContext {
      * with the zigzag/alternate scan<br>
      * an example to avoid confusion:
      * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)
-     * - (x -> referece dct -> reference idct -> x)
+     * - (x -> reference dct -> reference idct -> x)
-     * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
+     * - (x -> reference dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
      * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)
      */
     uint8_t idct_permutation[64];

libavcodec/eatgv.c

@@ -155,7 +155,7 @@ static int tgv_decode_inter(TgvContext * s, const uint8_t *buf, const uint8_t *b
     vector_bits       = AV_RL16(&buf[6]);
     buf += 12;
 
-    /* allocate codebook buffers as neccessary */
+    /* allocate codebook buffers as necessary */
     if (num_mvs > s->num_mvs) {
         s->mv_codebook = av_realloc(s->mv_codebook, num_mvs*2*sizeof(int));
         s->num_mvs = num_mvs;
@@ -286,7 +286,7 @@ static int tgv_decode_frame(AVCodecContext *avctx,
         s->frame.buffer_hints = FF_BUFFER_HINTS_VALID;
         s->frame.linesize[0] = s->width;
 
-        /* allocate additional 12 bytes to accomodate av_memcpy_backptr() OUTBUF_PADDED optimisation */
+        /* allocate additional 12 bytes to accommodate av_memcpy_backptr() OUTBUF_PADDED optimisation */
         s->frame.data[0] = av_malloc(s->width*s->height + 12);
         if (!s->frame.data[0])
             return AVERROR(ENOMEM);

libavcodec/error_resilience.c

@@ -790,7 +790,7 @@ void ff_er_frame_end(MpegEncContext *s){
     if(!s->error_recognition || s->error_count==0 || s->avctx->lowres ||
        s->avctx->hwaccel ||
        s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU ||
-       s->picture_structure != PICT_FRAME || // we dont support ER of field pictures yet, though it should not crash if enabled
+       s->picture_structure != PICT_FRAME || // we do not support ER of field pictures yet, though it should not crash if enabled
        s->error_count==3*s->mb_width*(s->avctx->skip_top + s->avctx->skip_bottom)) return;
 
     if (s->current_picture.f.motion_val[0] == NULL) {

libavcodec/g722enc.c

@@ -153,7 +153,7 @@ static int g722_encode_trellis(AVCodecContext *avctx,
 
         for (j = 0; j < frontier && nodes[0][j]; j++) {
             /* Only k >> 2 affects the future adaptive state, therefore testing
-             * small steps that don't change k >> 2 is useless, the orignal
+             * small steps that don't change k >> 2 is useless, the original
              * value from encode_low is better than them. Since we step k
              * in steps of 4, make sure range is a multiple of 4, so that
              * we don't miss the original value from encode_low. */

libavcodec/h264.c

@@ -2893,7 +2893,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
              * FIXME: avoiding a memcpy would be nice, but ref handling makes many assumptions
              * about there being no actual duplicates.
              * FIXME: this doesn't copy padding for out-of-frame motion vectors.  Given we're
-             * concealing a lost frame, this probably isn't noticable by comparison, but it should
+             * concealing a lost frame, this probably isn't noticeable by comparison, but it should
              * be fixed. */
             if (h->short_ref_count) {
                 if (prev) {
@@ -3316,7 +3316,7 @@ static av_always_inline void fill_filter_caches_inter(H264Context *h, MpegEncCon
 
 /**
  *
- * @return non zero if the loop filter can be skiped
+ * @return non zero if the loop filter can be skipped
  */
 static int fill_filter_caches(H264Context *h, int mb_type){
     MpegEncContext * const s = &h->s;
@@ -3839,7 +3839,7 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){
                 av_log(h->s.avctx, AV_LOG_ERROR, "Invalid mix of idr and non-idr slices");
                 return -1;
             }
-            idr(h); //FIXME ensure we don't loose some frames if there is reordering
+            idr(h); // FIXME ensure we don't lose some frames if there is reordering
         case NAL_SLICE:
             init_get_bits(&hx->s.gb, ptr, bit_length);
             hx->intra_gb_ptr=

libavcodec/jfdctint_template.c

@@ -340,7 +340,7 @@ FUNC(ff_jpeg_fdct_islow)(DCTELEM *data)
 
 /*
  * The secret of DCT2-4-8 is really simple -- you do the usual 1-DCT
- * on the rows and then, instead of doing even and odd, part on the colums
+ * on the rows and then, instead of doing even and odd, part on the columns
  * you do even part two times.
  */
 GLOBAL(void)

libavcodec/lpc.h

@@ -67,7 +67,7 @@ typedef struct LPCContext {
      * Perform autocorrelation on input samples with delay of 0 to lag.
      * @param data  input samples.
      *              constraints: no alignment needed, but must have have at
-     *              least lag*sizeof(double) valid bytes preceeding it, and
+     *              least lag*sizeof(double) valid bytes preceding it, and
      *              size must be at least (len+1)*sizeof(double) if data is
      *              16-byte aligned or (len+2)*sizeof(double) if data is
      *              unaligned.

libavcodec/mjpegdec.c

@@ -1109,9 +1109,9 @@ static int mjpeg_decode_app(MJpegDecodeContext *s)
         av_log(s->avctx, AV_LOG_DEBUG, "APPx %8X\n", id);
     }
 
-    /* buggy AVID, it puts EOI only at every 10th frame */
+    /* Buggy AVID, it puts EOI only at every 10th frame. */
-    /* also this fourcc is used by non-avid files too, it holds some
+    /* Also, this fourcc is used by non-avid files too, it holds some
-       informations, but it's always present in AVID creates files */
+       information, but it's always present in AVID-created files. */
     if (id == AV_RL32("AVI1"))
     {
         /* structure:

libavcodec/mpegvideo.h

@@ -127,7 +127,7 @@ typedef struct Picture{
     int ref_poc[2][2][16];      ///< h264 POCs of the frames used as reference (FIXME need per slice)
     int ref_count[2][2];        ///< number of entries in ref_poc              (FIXME need per slice)
     int mbaff;                  ///< h264 1 -> MBAFF frame 0-> not MBAFF
-    int field_picture;          ///< whether or not the picture was encoded in seperate fields
+    int field_picture;          ///< whether or not the picture was encoded in separate fields
 
     int mb_var_sum;             ///< sum of MB variance for current frame
     int mc_mb_var_sum;          ///< motion compensated MB variance for current frame

libavcodec/tscc.c

@@ -155,7 +155,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
              return -1;
     }
     c->bpp = avctx->bits_per_coded_sample;
-    // buffer size for RLE 'best' case when 2-byte code preceeds each pixel and there may be padding after it too
+    // buffer size for RLE 'best' case when 2-byte code precedes each pixel and there may be padding after it too
     c->decomp_size = (((avctx->width * c->bpp + 7) >> 3) + 3 * avctx->width + 2) * avctx->height + 2;
 
     /* Allocate decompression buffer */

libavcodec/vaapi_mpeg4.c

@@ -98,7 +98,7 @@ static int vaapi_mpeg4_start_frame(AVCodecContext *avctx, av_unused const uint8_
         pic_param->forward_reference_picture  = ff_vaapi_get_surface_id(&s->last_picture);
 
     /* Fill in VAIQMatrixBufferMPEG4 */
-    /* Only the first inverse quantisation method uses the weighthing matrices */
+    /* Only the first inverse quantisation method uses the weighting matrices */
     if (pic_param->vol_fields.bits.quant_type) {
         iq_matrix = ff_vaapi_alloc_iq_matrix(vactx, sizeof(VAIQMatrixBufferMPEG4));
         if (!iq_matrix)

libavcodec/vc1dec.c

@@ -3536,7 +3536,7 @@ static void vc1_apply_p_loop_filter(VC1Context *v)
         vc1_apply_p_v_loop_filter(v, i);
     }
 
-    /* V always preceedes H, therefore we run H one MB before V;
+    /* V always precedes H, therefore we run H one MB before V;
      * at the end of a row, we catch up to complete the row */
     if (s->mb_x) {
         for (i = 0; i < 6; i++) {
@@ -3573,7 +3573,7 @@ static int vc1_decode_p_mb(VC1Context *v)
     int skipped, fourmv;
     int block_cbp = 0, pat, block_tt = 0, block_intra = 0;
 
-    mquant = v->pq; /* Loosy initialization */
+    mquant = v->pq; /* lossy initialization */
 
     if (v->mv_type_is_raw)
         fourmv = get_bits1(gb);
@@ -4141,7 +4141,7 @@ static void vc1_decode_b_mb(VC1Context *v)
     int dmv_x[2], dmv_y[2];
     int bmvtype = BMV_TYPE_BACKWARD;
 
-    mquant      = v->pq; /* Loosy initialization */
+    mquant      = v->pq; /* lossy initialization */
     s->mb_intra = 0;
 
     if (v->dmb_is_raw)

libavcodec/wmaprodec.c

@@ -1425,7 +1425,7 @@ static int remaining_bits(WMAProDecodeCtx *s, GetBitContext *gb)
  *@param s codec context
  *@param gb bitstream reader context
  *@param len length of the partial frame
- *@param append decides wether to reset the buffer or not
+ *@param append decides whether to reset the buffer or not
  */
 static void save_bits(WMAProDecodeCtx *s, GetBitContext* gb, int len,
                       int append)

libavcodec/wmavoice.c

@@ -189,7 +189,7 @@ typedef struct {
      * @{
      */
     int spillover_nbits;          ///< number of bits of the previous packet's
-                                  ///< last superframe preceeding this
+                                  ///< last superframe preceding this
                                   ///< packet's first full superframe (useful
                                   ///< for re-synchronization also)
     int has_residual_lsps;        ///< if set, superframes contain one set of
@@ -1805,7 +1805,7 @@ static int synth_superframe(AVCodecContext *ctx, int *got_frame_ptr)
     s->frame.nb_samples = n_samples;
     samples = (float *)s->frame.data[0];
 
-    /* Parse frames, optionally preceeded by per-frame (independent) LSPs. */
+    /* Parse frames, optionally preceded by per-frame (independent) LSPs. */
     for (n = 0; n < 3; n++) {
         if (!s->has_residual_lsps) {
             int m;

libavcodec/x86/vc1dsp_yasm.asm

@@ -227,7 +227,7 @@ section .text
     imul r2, 0x01010101
 %endmacro
 
-; I dont know why the sign extension is needed...
+; I do not know why the sign extension is needed...
 %macro PSIGNW_SRA_MMX 2
     psraw %2, 15
     PSIGNW_MMX %1, %2

libavdevice/jack_audio.c

@@ -271,7 +271,7 @@ static int audio_read_packet(AVFormatContext *context, AVPacket *pkt)
         }
     }
 
-    /* Wait for a packet comming back from process_callback(), if one isn't available yet */
+    /* Wait for a packet coming back from process_callback(), if one isn't available yet */
     timeout.tv_sec = av_gettime() / 1000000 + 2;
     if (sem_timedwait(&self->packet_count, &timeout)) {
         if (errno == ETIMEDOUT) {

libavdevice/timefilter.h

@@ -72,7 +72,7 @@ TimeFilter * ff_timefilter_new(double clock_period, double feedback2_factor, dou
  *
  * system_time, in seconds, should be the value of the system clock time,
  * at (or as close as possible to) the moment the device hardware interrupt
- * occured (or any other event the device clock raises at the beginning of a
+ * occurred (or any other event the device clock raises at the beginning of a
  * cycle).
  *
  * @return the filtered time, in seconds

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;

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;

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)

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;
             }
         }

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

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.
     /*@}*/
 

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)
 {

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");
 

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;
         }

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

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)

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
 

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;

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)

libavutil/eval.h

@@ -58,7 +58,7 @@ int av_expr_parse_and_eval(double *res, const char *s,
  * Parse an expression.
  *
  * @param expr a pointer where is put an AVExpr containing the parsed
- * value in case of successfull parsing, or NULL otherwise.
+ * value in case of successful parsing, or NULL otherwise.
  * The pointed to AVExpr must be freed with av_expr_free() by the user
  * when it is not needed anymore.
  * @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)"

libpostproc/postprocess.c

@@ -909,7 +909,7 @@ static void reallocBuffers(PPContext *c, int width, int height, int stride, int
             c->yHistogram[i]= width*height/64*15/256;
 
     for(i=0; i<3; i++){
-        //Note: The +17*1024 is just there so i do not have to worry about r/w over the end.
+        //Note: The +17*1024 is just there so I do not have to worry about r/w over the end.
         reallocAlign((void **)&c->tempBlurred[i], 8, stride*mbHeight*16 + 17*1024);
         reallocAlign((void **)&c->tempBlurredPast[i], 8, 256*((height+7)&(~7))/2 + 17*1024);//FIXME size
     }

libpostproc/postprocess_internal.h

@@ -100,7 +100,7 @@ typedef struct PPMode{
 
     int minAllowedY;                ///< for brigtness correction
     int maxAllowedY;                ///< for brihtness correction
-    float maxClippedThreshold;      ///< amount of "black" u r willing to loose to get a brightness corrected picture
+    float maxClippedThreshold;      ///< amount of "black" you are willing to lose to get a brightness-corrected picture
 
     int maxTmpNoise[3];             ///< for Temporal Noise Reducing filter (Maximal sum of abs differences)
 

tools/patcheck

@@ -67,7 +67,7 @@ $EGREP $OPT '^\+ *(const *|)static' $*| $EGREP --color=always '[^=]= *(0|NULL)[^
 cat $TMP
 hiegrep '# *ifdef * (HAVE|CONFIG)_' 'ifdefs that should be #if' $*
 
-hiegrep '\b(awnser|cant|dont|quantised|quantisation|teh|wont)\b' 'common typos' $*
+hiegrep '\b(awnser|cant|dont|wont|usefull|successfull|occured|teh|alot|wether|skiped|heigth|informations|colums|loosy|loosing|seperate|preceed)\b' 'common typos' $*
 
 hiegrep 'av_log\( *NULL' 'Missing context in av_log' $*
 hiegrep '[^sn]printf' 'Please use av_log' $*