doc: fix spelling errors

Reviewed-by: Lou Logan <lou@lrcd.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

doc/encoders.texi

@@ -1411,7 +1411,7 @@ can be selected with @code{-pred 1}.
 @table @option
 @item format
 Can be set to either @code{j2k} or @code{jp2} (the default) that
-allows to store non-rgb pix_fmts.
+makes it possible to store non-rgb pix_fmts.
 
 @end table
 

doc/filters.texi

@@ -1118,7 +1118,7 @@ Number_of_samples
 For example full key look like this @code{lavfi.astats.1.DC_offset} or
 this @code{lavfi.astats.Overall.Peak_count}.
 
-For description what each key means read bellow.
+For description what each key means read below.
 
 @item reset
 Set number of frame after which stats are going to be recalculated.
@@ -2400,7 +2400,7 @@ Amount of milliseconds the signal has to rise above the threshold before gain
 reduction starts. Default is 20. Range is between 0.01 and 2000.
 
 @item release
-Amount of milliseconds the signal has to fall bellow the threshold before
+Amount of milliseconds the signal has to fall below the threshold before
 reduction is decreased again. Default is 250. Range is between 0.01 and 9000.
 
 @item makeup
@@ -4533,7 +4533,7 @@ It accepts the following options:
 @item threshold1
 @item threshold2
 @item threshold3
-Allows to limit the maximum change for each plane, default is 65535.
+Limit the maximum change for each plane, default is 65535.
 If 0, plane will remain unchanged.
 @end table
 
@@ -4738,7 +4738,7 @@ It accepts the following options:
 @item threshold1
 @item threshold2
 @item threshold3
-Allows to limit the maximum change for each plane, default is 65535.
+Limit the maximum change for each plane, default is 65535.
 If 0, plane will remain unchanged.
 
 @item coordinates
@@ -5675,7 +5675,7 @@ It accepts the following options:
 @item threshold1
 @item threshold2
 @item threshold3
-Allows to limit the maximum change for each plane, default is 65535.
+Limit the maximum change for each plane, default is 65535.
 If 0, plane will remain unchanged.
 
 @item coordinates
@@ -7369,7 +7369,7 @@ It accepts the following options:
 @item threshold1
 @item threshold2
 @item threshold3
-Allows to limit the maximum change for each plane, default is 65535.
+Limit the maximum change for each plane, default is 65535.
 If 0, plane will remain unchanged.
 @end table
 
@@ -10405,7 +10405,7 @@ stereo3d=sbsl:aybd
 @end example
 
 @item
-Convert input video from above bellow (left eye above, right eye below) to side by side crosseye.
+Convert input video from above below (left eye above, right eye below) to side by side crosseye.
 @example
 stereo3d=abl:sbsr
 @end example

libavcodec/g726.c

@@ -32,7 +32,7 @@
 
 /**
  * G.726 11bit float.
- * G.726 Standard uses rather odd 11bit floating point arithmentic for
+ * G.726 Standard uses rather odd 11bit floating point arithmetic for
  * numerous occasions. It's a mystery to me why they did it this way
  * instead of simply using 32bit integer arithmetic.
  */

libavcodec/vaapi_hevc.c

@@ -205,7 +205,7 @@ static void fill_picture_parameters(const HEVCContext *h, VAPictureParameterBuff
     pp->pps_tc_offset_div2 = h->ps.pps->tc_offset / 2;
     pp->log2_parallel_merge_level_minus2 = h->ps.pps->log2_parallel_merge_level - 2;
 
-    /* Diffrent chroma/luma bit depths are currently not supported by ffmpeg. */
+    /* Different chroma/luma bit depths are currently not supported by ffmpeg. */
     pp->bit_depth_luma_minus8 = h->ps.sps->bit_depth - 8;
     pp->bit_depth_chroma_minus8 = h->ps.sps->bit_depth - 8;
 

libavfilter/x86/vf_removegrain.asm

@@ -359,7 +359,7 @@ cglobal rg_fl_mode_6, 4, 5, 16, 0, dst, src, stride, pixels
         paddw m2, m7 ; c2
         paddw m3, m6 ; c3
         paddw m4, m5 ; c4
-        ; As the differences (d1..d4) can only be postive, there is no need to
+        ; As the differences (d1..d4) can only be positive, there is no need to
         ; clip to zero.  Also, the maximum positive value is less than 768.
 
         pminsw m1, m2
@@ -485,7 +485,7 @@ cglobal rg_fl_mode_8, 4, 5, 16, 0, dst, src, stride, pixels
         paddw m2, m7 ; c1
         paddw m3, m6 ; c1
         paddw m4, m5 ; c1
-        ; As the differences (d1..d4) can only be postive, there is no need to
+        ; As the differences (d1..d4) can only be positive, there is no need to
         ; clip to zero.  Also, the maximum positive value is less than 768.
 
         pminsw m1, m2

libavformat/asfdec_o.c

@@ -1042,8 +1042,8 @@ static const GUIDParseTable gdef[] = {
     { "Mutex Language",               { 0xD6, 0xE2, 0x2A, 0x00, 0x25, 0xDA, 0x11, 0xD1, 0x90, 0x34, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xBE }, asf_read_unknown, 1 },
     { "Mutex Bitrate",                { 0xD6, 0xE2, 0x2A, 0x01, 0x25, 0xDA, 0x11, 0xD1, 0x90, 0x34, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xBE }, asf_read_unknown, 1 },
     { "Mutex Unknown",                { 0xD6, 0xE2, 0x2A, 0x02, 0x25, 0xDA, 0x11, 0xD1, 0x90, 0x34, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xBE }, asf_read_unknown, 1 },
-    { "Bandwith Sharing Exclusive",   { 0xAF, 0x60, 0x60, 0xAA, 0x51, 0x97, 0x11, 0xD2, 0xB6, 0xAF, 0x00, 0xC0, 0x4F, 0xD9, 0x08, 0xE9 }, asf_read_unknown, 1 },
-    { "Bandwith Sharing Partial",     { 0xAF, 0x60, 0x60, 0xAB, 0x51, 0x97, 0x11, 0xD2, 0xB6, 0xAF, 0x00, 0xC0, 0x4F, 0xD9, 0x08, 0xE9 }, asf_read_unknown, 1 },
+    { "Bandwidth Sharing Exclusive",  { 0xAF, 0x60, 0x60, 0xAA, 0x51, 0x97, 0x11, 0xD2, 0xB6, 0xAF, 0x00, 0xC0, 0x4F, 0xD9, 0x08, 0xE9 }, asf_read_unknown, 1 },
+    { "Bandwidth Sharing Partial",    { 0xAF, 0x60, 0x60, 0xAB, 0x51, 0x97, 0x11, 0xD2, 0xB6, 0xAF, 0x00, 0xC0, 0x4F, 0xD9, 0x08, 0xE9 }, asf_read_unknown, 1 },
     { "Payload Extension System Timecode", { 0x39, 0x95, 0x95, 0xEC, 0x86, 0x67, 0x4E, 0x2D, 0x8F, 0xDB, 0x98, 0x81, 0x4C, 0xE7, 0x6C, 0x1E }, asf_read_unknown, 1 },
     { "Payload Extension System File Name", { 0xE1, 0x65, 0xEC, 0x0E, 0x19, 0xED, 0x45, 0xD7, 0xB4, 0xA7, 0x25, 0xCB, 0xD1, 0xE2, 0x8E, 0x9B }, asf_read_unknown, 1 },
     { "Payload Extension System Content Type", { 0xD5, 0x90, 0xDC, 0x20, 0x07, 0xBC, 0x43, 0x6C, 0x9C, 0xF7, 0xF3, 0xBB, 0xFB, 0xF1, 0xA4, 0xDC }, asf_read_unknown, 1 },
@@ -1163,7 +1163,7 @@ static int asf_read_multiple_payload(AVFormatContext *s, AVPacket *pkt,
     int ret;
     int skip = 0;
 
-    // if replicated lenght is 1, subpayloads are present
+    // if replicated length is 1, subpayloads are present
     if (asf->rep_data_len == 1) {
         asf->sub_left = 1;
         asf->state = READ_MULTI_SUB;

libavformat/ffmdec.c

@@ -151,7 +151,7 @@ static int ffm_read_data(AVFormatContext *s,
     return size1 - size;
 }
 
-/* ensure that acutal seeking happens between FFM_PACKET_SIZE
+/* ensure that actual seeking happens between FFM_PACKET_SIZE
    and file_size - FFM_PACKET_SIZE */
 static int64_t ffm_seek1(AVFormatContext *s, int64_t pos1)
 {

libavformat/mov.c

@@ -893,9 +893,9 @@ static int mov_read_adrm(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     }
 
     /* drm blob processing */
-    avio_read(pb, output, 8); // go to offset 8, absolute postion 0x251
+    avio_read(pb, output, 8); // go to offset 8, absolute position 0x251
     avio_read(pb, input, DRM_BLOB_SIZE);
-    avio_read(pb, output, 4); // go to offset 4, absolute postion 0x28d
+    avio_read(pb, output, 4); // go to offset 4, absolute position 0x28d
     avio_read(pb, file_checksum, 20);
 
     av_log(c->fc, AV_LOG_INFO, "[aax] file checksum == "); // required by external tools