cosmetics: Fix spelling mistakes

Signed-off-by: Diego Biurrun <[email protected]>

Changelog

@@ -377,7 +377,7 @@ version 0.7_beta2:
 - DPX image encoder
 - SMPTE 302M AES3 audio decoder
 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
-- 9bit and 10bit per sample support in the H.264 decoder
+- 9 bits and 10 bits per sample support in the H.264 decoder
 
 
 version 0.7_beta1:
@@ -732,7 +732,7 @@ version 0.4.9-pre1:
 - rate distorted optimal lambda->qp support
 - AAC encoding with libfaac
 - Sunplus JPEG codec (SP5X) support
-- use Lagrange multipler instead of QP for ratecontrol
+- use Lagrange multiplier instead of QP for ratecontrol
 - Theora/VP3 decoding support
 - XA and ADX ADPCM codecs
 - export MPEG-2 active display area / pan scan

avconv.c

@@ -1,6 +1,6 @@
 /*
  * avconv main
- * Copyright (c) 2000-2011 The libav developers.
+ * Copyright (c) 2000-2011 The Libav developers
  *
  * This file is part of Libav.
  *
@@ -1154,7 +1154,7 @@ int guess_input_channel_layout(InputStream *ist)
             return 0;
         av_get_channel_layout_string(layout_name, sizeof(layout_name),
                                      dec->channels, dec->channel_layout);
-        av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for  Input Stream "
+        av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream "
                "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name);
     }
     return 1;
@@ -1630,7 +1630,7 @@ static int init_output_bsfs(OutputStream *ost)
     for (i = 0; i < ost->nb_bitstream_filters; i++) {
         ret = av_bsf_alloc(ost->bitstream_filters[i], &ctx);
         if (ret < 0) {
-            av_log(NULL, AV_LOG_ERROR, "Error allocating a bistream filter context\n");
+            av_log(NULL, AV_LOG_ERROR, "Error allocating a bitstream filter context\n");
             return ret;
         }
         ost->bsf_ctx[i] = ctx;
@@ -1644,7 +1644,7 @@ static int init_output_bsfs(OutputStream *ost)
 
         ret = av_bsf_init(ctx);
         if (ret < 0) {
-            av_log(NULL, AV_LOG_ERROR, "Error initializing bistream filter: %s\n",
+            av_log(NULL, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
                    ost->bitstream_filters[i]->name);
             return ret;
         }

avconv_opt.c

@@ -760,7 +760,7 @@ static int open_input_file(OptionsContext *o, const char *filename)
     ic->flags |= AVFMT_FLAG_NONBLOCK;
     ic->interrupt_callback = int_cb;
 
-    /* open the input file with generic libav function */
+    /* open the input file with generic Libav function */
     err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
     if (err < 0) {
         print_error(filename, err);

avplay.c

@@ -1362,7 +1362,7 @@ static int output_picture2(PlayerState *is, AVFrame *src_frame, double pts1, int
     }
     /* update video clock for next frame */
     frame_delay = av_q2d(is->video_dec->time_base);
-    /* for MPEG2, the frame can be repeated, so we update the
+    /* For MPEG-2, the frame can be repeated, so we update the
        clock accordingly */
     frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
     is->video_clock += frame_delay;
@@ -2123,7 +2123,7 @@ static int stream_component_open(PlayerState *is, int stream_index)
         /* init averaging filter */
         is->audio_diff_avg_coef  = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
         is->audio_diff_avg_count = 0;
-        /* since we do not have a precise anough audio fifo fullness,
+        /* since we do not have a precise enough audio FIFO fullness,
            we correct audio sync only if larger than this threshold */
         is->audio_diff_threshold = 2.0 * SDL_AUDIO_BUFFER_SIZE / avctx->sample_rate;
 

avprobe.c

@@ -62,7 +62,7 @@ static int use_value_sexagesimal_format = 0;
 /* globals */
 static const OptionDef *options;
 
-/* AVprobe context */
+/* avprobe context */
 static const char *input_filename;
 static AVInputFormat *iformat = NULL;
 

doc/APIchanges

@@ -23,7 +23,7 @@ API changes, most recent first:
 
 2016-xx-xx - xxxxxxx - lavc 57.15.0 - avcodec.h
   Add a new bitstream filtering API working with AVPackets.
-  Deprecate the old bistream filtering API.
+  Deprecate the old bitstream filtering API.
 
 2016-xx-xx - xxxxxxx - lavfi 6.3.0 - avfilter.h
   Add AVFilterContext.hw_device_ctx.
@@ -501,7 +501,7 @@ API changes, most recent first:
 
 2013-08-05 - f824535 - lavc 55.13.0 - avcodec.h
   Deprecate the bitstream-related members from struct AVVDPAUContext.
-  The bistream buffers no longer need to be explicitly freed.
+  The bitstream buffers no longer need to be explicitly freed.
 
 2013-08-05 - 549294f - lavc 55.12.0 - avcodec.h
   Deprecate the CODEC_CAP_HWACCEL_VDPAU codec capability. Use CODEC_CAP_HWACCEL
@@ -591,7 +591,7 @@ lavd 54.0.0, lavfi 3.5.0
                 * base -- is now stored in AVBufferRef
                 * reference, type, buffer_hints -- are unnecessary in the new API
                 * hwaccel_picture_private, owner, thread_opaque -- should not
-                  have been acessed from outside of lavc
+                  have been accessed from outside of lavc
                 * qscale_table, qstride, qscale_type, mbskip_table, motion_val,
                   mb_type, dct_coeff, ref_index -- mpegvideo-specific tables,
                   which are not exported anymore.

doc/avconv.texi

@@ -641,7 +641,7 @@ For DXVA2, this option should contain the number of the display adapter to use.
 If this option is not specified, the default adapter is used.
 
 @item qsv
-For QSV, this option corresponds to the valus of MFX_IMPL_* . Allowed values
+For QSV, this option corresponds to the values of MFX_IMPL_* . Allowed values
 are:
 @table @option
 @item auto
@@ -886,7 +886,7 @@ avconv -i infile -streamid 0:33 -streamid 1:36 out.ts
 @end example
 
 @item -bsf[:@var{stream_specifier}] @var{bitstream_filters} (@emph{output,per-stream})
-Set bitstream filters for matching streams. @var{bistream_filters} is
+Set bitstream filters for matching streams. @var{bitstream_filters} is
 a comma-separated list of bitstream filters. Use the @code{-bsfs} option
 to get the list of bitstream filters.
 @example

doc/avplay.texi

@@ -20,7 +20,7 @@ avplay [options] @file{input_file}
 @chapter Description
 @c man begin DESCRIPTION
 
-AVplay is a very simple and portable media player using the Libav
+avplay is a very simple and portable media player using the Libav
 libraries and the SDL library. It is mostly used as a testbed for the
 various Libav APIs.
 @c man end
@@ -171,7 +171,7 @@ Seek to percentage in file corresponding to fraction of width.
 @ignore
 
 @setfilename avplay
-@settitle AVplay media player
+@settitle avplay media player
 
 @c man begin SEEALSO
 avconv(1), avprobe(1) and the Libav HTML documentation

doc/avtools-common-opts.texi

@@ -19,7 +19,7 @@ are used to precisely specify which stream(s) does a given option belong to.
 
 A stream specifier is a string generally appended to the option name and
 separated from it by a colon. E.g. @code{-codec:a:1 ac3} option contains
-@code{a:1} stream specifer, which matches the second audio stream. Therefore it
+@code{a:1} stream specifier, which matches the second audio stream. Therefore it
 would select the ac3 codec for the second audio stream.
 
 A stream specifier can match several stream, the option is then applied to all

doc/avutil.txt

@@ -15,7 +15,7 @@ md5.c                   MD5 Message-Digest Algorithm
 rational.c              code to perform exact calculations with rational numbers
 tree.c                  generic AVL tree
 crc.c                   generic CRC checksumming code
-integer.c               128bit integer math
+integer.c               128-bit integer math
 lls.c
 mathematics.c           greatest common divisor, integer sqrt, integer log2, ...
 mem.c                   memory allocation routines with guaranteed alignment

doc/developer.texi

@@ -23,7 +23,7 @@ player. See @file{doc/examples/output.c} to use it to generate
 audio or video streams.
 @end itemize
 
-@section Integrating libav in your program
+@section Integrating Libav in your program
 
 Shared libraries should be used whenever is possible in order to reduce
 the effort distributors have to pour to support programs and to ensure
@@ -617,7 +617,7 @@ least make sure that it does not break anything.
 If the code changed has already a test present in FATE you should run it,
 otherwise it is advised to add it.
 
-Improvements to codec or demuxer might change the FATE results. Make sure
+Improvements to a codec or demuxer might change the FATE results. Make sure
 to commit the update reference with the change and to explain in the comment
 why the expected result changed.
 

doc/encoders.texi

@@ -803,8 +803,8 @@ Use @var{0} to disable alpha plane coding.
 @subsection Speed considerations
 
 In the default mode of operation the encoder has to honor frame constraints
-(i.e. not produc frames with size bigger than requested) while still making
-output picture as good as possible.
+(i.e. not produce frames with a size larger than requested) while still making
+the output picture as good as possible.
 A frame containing a lot of small details is harder to compress and the encoder
 would spend more time searching for appropriate quantizers for each slice.
 

doc/examples/avcodec.c

@@ -23,9 +23,9 @@
  * libavcodec API use example.
  *
  * @example avcodec.c
- * Note that this library only handles codecs (mpeg, mpeg4, etc...),
- * not file formats (avi, vob, etc...). See library 'libavformat' for the
- * format handling
+ * Note that this library only handles codecs (MPEG, MPEG-4, etc...),
+ * not file formats (AVI, VOB, etc...). See library 'libavformat' for the
+ * format handling.
  */
 
 #include <stdlib.h>
@@ -234,7 +234,7 @@ static void audio_decode_example(const char *outfilename, const char *filename)
 
     printf("Audio decoding\n");
 
-    /* find the mpeg audio decoder */
+    /* find the MPEG audio decoder */
     codec = avcodec_find_decoder(AV_CODEC_ID_MP2);
     if (!codec) {
         fprintf(stderr, "codec not found\n");
@@ -325,7 +325,7 @@ static void video_encode_example(const char *filename)
 
     printf("Video encoding\n");
 
-    /* find the mpeg1 video encoder */
+    /* find the mpeg1video encoder */
     codec = avcodec_find_encoder(AV_CODEC_ID_MPEG1VIDEO);
     if (!codec) {
         fprintf(stderr, "codec not found\n");
@@ -424,7 +424,7 @@ static void video_encode_example(const char *filename)
         }
     }
 
-    /* add sequence end code to have a real mpeg file */
+    /* add sequence end code to have a real MPEG file */
     fwrite(endcode, 1, sizeof(endcode), f);
     fclose(f);
 
@@ -465,12 +465,12 @@ static void video_decode_example(const char *outfilename, const char *filename)
 
     av_init_packet(&avpkt);
 
-    /* set end of buffer to 0 (this ensures that no overreading happens for damaged mpeg streams) */
+    /* set end of buffer to 0 (this ensures that no overreading happens for damaged MPEG streams) */
     memset(inbuf + INBUF_SIZE, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
     printf("Video decoding\n");
 
-    /* find the mpeg1 video decoder */
+    /* find the MPEG-1 video decoder */
     codec = avcodec_find_decoder(AV_CODEC_ID_MPEG1VIDEO);
     if (!codec) {
         fprintf(stderr, "codec not found\n");
@@ -545,9 +545,9 @@ static void video_decode_example(const char *outfilename, const char *filename)
         }
     }
 
-    /* some codecs, such as MPEG, transmit the I and P frame with a
+    /* Some codecs, such as MPEG, transmit the I- and P-frame with a
        latency of one frame. You must do the following to have a
-       chance to get the last frame of the video */
+       chance to get the last frame of the video. */
     avpkt.data = NULL;
     avpkt.size = 0;
     len = avcodec_decode_video2(c, picture, &got_picture, &avpkt);

doc/examples/output.c

@@ -365,7 +365,7 @@ static void add_video_stream(OutputStream *ost, AVFormatContext *oc,
     c->gop_size      = 12; /* emit one intra frame every twelve frames at most */
     c->pix_fmt       = STREAM_PIX_FMT;
     if (c->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
-        /* just for testing, we also add B frames */
+        /* just for testing, we also add B-frames */
         c->max_b_frames = 2;
     }
     if (c->codec_id == AV_CODEC_ID_MPEG1VIDEO) {

doc/fate.texi

@@ -11,7 +11,7 @@
 
 @chapter Introduction
 
-FATE provides a regression testsuite embedded within the Libav build system.
+FATE provides a regression test suite embedded within the Libav build system.
 It can be run locally and optionally configured to send reports to a web
 aggregator and viewer @url{http://fate.libav.org}.
 
@@ -24,7 +24,7 @@ and provide new tests when submitting patches to add additional features.
 In order to run, FATE needs a large amount of data (samples and references)
 that is provided separately from the actual source distribution.
 
-To inform the build system about the testsuite location, pass
+To inform the build system about the test suite location, pass
 @option{--samples=<path to the samples>} to @command{configure} or set the
 @var{SAMPLES} Make variable or the @var{LIBAV_SAMPLES} environment variable
 to a suitable value.
@@ -57,7 +57,7 @@ Specific Makefile targets and Makefile variables are available:
 List all fate/regression test targets.
 
 @item fate-rsync
-Shortcut to download the fate test samples to the specified testsuite location.
+Shortcut to download the fate test samples to the specified test suite location.
 
 @item fate
 Run the FATE test suite (requires the fate-suite dataset).

doc/filters.texi

@@ -1541,7 +1541,7 @@ For more information, see
 @section gradfun
 
 Fix the banding artifacts that are sometimes introduced into nearly flat
-regions by truncation to 8bit colordepth.
+regions by truncation to 8-bit colordepth.
 Interpolate the gradients that should go where the bands are, and
 dither them.
 
@@ -1900,7 +1900,7 @@ libopencv function @code{cvSmooth}.
 Overlay one video on top of another.
 
 It takes two inputs and has one output. The first input is the "main"
-video on which the second input is overlayed.
+video on which the second input is overlaid.
 
 It accepts the following parameters:
 
@@ -2327,7 +2327,7 @@ select='not(mod(n\,100))'
 # Select only frames contained in the 10-20 time interval
 select='gte(t\,10)*lte(t\,20)'
 
-# Select only I frames contained in the 10-20 time interval
+# Select only I-frames contained in the 10-20 time interval
 select='gte(t\,10)*lte(t\,20)*eq(pict_type\,I)'
 
 # Select frames with a minimum distance of 10 seconds
@@ -2957,7 +2957,7 @@ number or a valid video frame rate abbreviation. The default value is
 
 The following graph description will generate a red source
 with an opacity of 0.2, with size "qcif" and a frame rate of 10
-frames per second, which will be overlayed over the source connected
+frames per second, which will be overlaid over the source connected
 to the pad with identifier "in":
 
 @example
@@ -3070,7 +3070,7 @@ A '|'-separated list of parameters to pass to the frei0r source.
 An example:
 @example
 # Generate a frei0r partik0l source with size 200x200 and framerate 10
-# which is overlayed on the overlay filter main input
+# which is overlaid on the overlay filter's main input
 frei0r_src=size=200x200:framerate=10:filter_name=partik0l:filter_params=1234 [overlay]; [in][overlay] overlay
 @end example
 

doc/git-howto.texi

@@ -399,7 +399,7 @@ to ensure no local changes still need to be committed and that no local
 changes may have thrown off the results of your testing.
 @end itemize
 
-Next let the code pass through a full run of our testsuite. Before you do,
+Next let the code pass through a full run of our test suite. Before you do,
 the command @command{make fate-rsync} will update the test samples. Changes
 to the samples set are not very common and commits depending on samples
 changes are delayed for at least 24 hours to allow the new samples to

doc/indevs.texi

@@ -369,7 +369,7 @@ The syntax is:
 -grab_x @var{x_offset} -grab_y @var{y_offset}
 @end example
 
-Set the grabing region coordinates. The are expressed as offset from the top left
+Set the grabbing region coordinates. The are expressed as offset from the top left
 corner of the X11 window. The default value is 0.
 
 @c man end INPUT DEVICES

doc/nut.texi

@@ -29,7 +29,7 @@ NUT has some variants signaled by using the flags field in its main header.
 
 The BROADCAST variant provides a secondary time reference to facilitate
 detecting endpoint latency and network delays.
-It assumes all the endpoint clocks are syncronized.
+It assumes all the endpoint clocks are synchronized.
 To be used in real-time scenarios.
 
 @section PIPE

doc/optimization.txt

@@ -7,7 +7,7 @@ If you plan to do non-x86 architecture specific optimizations (SIMD normally),
 then take a look in the x86/ directory, as most important functions are
 already optimized for MMX.
 
-If you want to do x86 optimizations then you can either try to finetune the
+If you want to do x86 optimizations then you can either try to fine-tune the
 stuff in the x86 directory or find some other functions in the C source to
 optimize, but there aren't many left.
 
@@ -163,7 +163,7 @@ general x86 registers (e.g. eax) as well as XMM registers. This last one is
 particularly important on Win64, where xmm6-15 are callee-save, and not
 restoring their contents leads to undefined results. In external asm (e.g.
 yasm), you do this by using:
-cglobal functon_name, num_args, num_regs, num_xmm_regs
+cglobal function_name, num_args, num_regs, num_xmm_regs
 In inline asm, you specify clobbered registers at the end of your asm:
 __asm__(".." ::: "%eax").
 If gcc is not set to support sse (-msse) it will not accept xmm registers