Browse code

Refer to ff* tools by their lowercase names.

Diego Biurrun authored on 2011/04/23 23:40:01
Showing 4 changed files
... ...
@@ -280,7 +280,7 @@ Just create an "input.avs" text file with this single line ...
280 280
 @example
281 281
   DirectShowSource("C:\path to your file\yourfile.asf")
282 282
 @end example
283
-... and then feed that text file to FFmpeg:
283
+... and then feed that text file to ffmpeg:
284 284
 @example
285 285
   ffmpeg -i input.avs
286 286
 @end example
... ...
@@ -348,7 +348,7 @@ ffmpeg -f u16le -acodec pcm_s16le -ac 2 -ar 44100 -i all.a \
348 348
 rm temp[12].[av] all.[av]
349 349
 @end example
350 350
 
351
-@section FFmpeg does not adhere to the -maxrate setting, some frames are bigger than maxrate/fps.
351
+@section The ffmpeg program does not respect the -maxrate setting, some frames are bigger than maxrate/fps.
352 352
 
353 353
 Read the MPEG spec about video buffer verifier.
354 354
 
... ...
@@ -22,17 +22,15 @@ ffmpeg [[infile options][@option{-i} @var{infile}]]... @{[outfile options] @var{
22 22
 @chapter Description
23 23
 @c man begin DESCRIPTION
24 24
 
25
-FFmpeg is a very fast video and audio converter. It can also grab from
26
-a live audio/video source.
25
+ffmpeg is a very fast video and audio converter that can also grab from
26
+a live audio/video source. It can also convert between arbitrary sample
27
+rates and resize video on the fly with a high quality polyphase filter.
27 28
 
28 29
 The command line interface is designed to be intuitive, in the sense
29
-that FFmpeg tries to figure out all parameters that can possibly be
30
+that ffmpeg tries to figure out all parameters that can possibly be
30 31
 derived automatically. You usually only have to specify the target
31 32
 bitrate you want.
32 33
 
33
-FFmpeg can also convert from any sample rate to any other, and resize
34
-video on the fly with a high quality polyphase filter.
35
-
36 34
 As a general rule, options are applied to the next specified
37 35
 file. Therefore, order is important, and you can have the same
38 36
 option on the command line multiple times. Each occurrence is
... ...
@@ -61,7 +59,7 @@ ffmpeg -r 1 -i input.m2v -r 24 output.avi
61 61
 
62 62
 The format option may be needed for raw input files.
63 63
 
64
-By default, FFmpeg tries to convert as losslessly as possible: It
64
+By default ffmpeg tries to convert as losslessly as possible: It
65 65
 uses the same audio and video parameters for the outputs as the one
66 66
 specified for the inputs.
67 67
 
... ...
@@ -486,7 +484,7 @@ Use 'frames' B-frames (supported for MPEG-1, MPEG-2 and MPEG-4).
486 486
 macroblock decision
487 487
 @table @samp
488 488
 @item 0
489
-FF_MB_DECISION_SIMPLE: Use mb_cmp (cannot change it yet in FFmpeg).
489
+FF_MB_DECISION_SIMPLE: Use mb_cmp (cannot change it yet in ffmpeg).
490 490
 @item 1
491 491
 FF_MB_DECISION_BITS: Choose the one which needs the fewest bits.
492 492
 @item 2
... ...
@@ -868,22 +866,22 @@ It allows almost lossless encoding.
868 868
 
869 869
 @section Video and Audio grabbing
870 870
 
871
-FFmpeg can grab video and audio from devices given that you specify the input
872
-format and device.
871
+If you specify the input format and device then ffmpeg can grab video
872
+and audio directly.
873 873
 
874 874
 @example
875 875
 ffmpeg -f oss -i /dev/dsp -f video4linux2 -i /dev/video0 /tmp/out.mpg
876 876
 @end example
877 877
 
878 878
 Note that you must activate the right video source and channel before
879
-launching FFmpeg with any TV viewer such as xawtv
879
+launching ffmpeg with any TV viewer such as xawtv
880 880
 (@url{http://linux.bytesex.org/xawtv/}) by Gerd Knorr. You also
881 881
 have to set the audio recording levels correctly with a
882 882
 standard mixer.
883 883
 
884 884
 @section X11 grabbing
885 885
 
886
-FFmpeg can grab the X11 display.
886
+Grab the X11 display with ffmpeg via
887 887
 
888 888
 @example
889 889
 ffmpeg -f x11grab -s cif -r 25 -i :0.0 /tmp/out.mpg
... ...
@@ -901,7 +899,7 @@ variable. 10 is the x-offset and 20 the y-offset for the grabbing.
901 901
 
902 902
 @section Video and Audio file format conversion
903 903
 
904
-FFmpeg can use any supported file format and protocol as input:
904
+Any supported file format and protocol can serve as input to ffmpeg:
905 905
 
906 906
 Examples:
907 907
 @itemize
... ...
@@ -921,7 +919,7 @@ It will use the files:
921 921
 The Y files use twice the resolution of the U and V files. They are
922 922
 raw files, without header. They can be generated by all decent video
923 923
 decoders. You must specify the size of the image with the @option{-s} option
924
-if FFmpeg cannot guess it.
924
+if ffmpeg cannot guess it.
925 925
 
926 926
 @item
927 927
 You can input from a raw YUV420P file:
... ...
@@ -22,7 +22,7 @@ ffprobe [options] [@file{input_file}]
22 22
 @chapter Description
23 23
 @c man begin DESCRIPTION
24 24
 
25
-FFprobe gathers information from multimedia streams and prints it in
25
+ffprobe gathers information from multimedia streams and prints it in
26 26
 human- and machine-readable fashion.
27 27
 
28 28
 For example it can be used to check the format of the container used
... ...
@@ -33,7 +33,7 @@ If a filename is specified in input, ffprobe will try to open and
33 33
 probe the file content. If the file cannot be opened or recognized as
34 34
 a multimedia file, a positive exit code is returned.
35 35
 
36
-FFprobe may be employed both as a standalone application or in
36
+ffprobe may be employed both as a standalone application or in
37 37
 combination with a textual filter, which may perform more
38 38
 sophisticated processing, e.g. statistical processing or plotting.
39 39
 
... ...
@@ -41,7 +41,7 @@ Options are used to list some of the formats supported by ffprobe or
41 41
 for specifying which information to display, and for setting how
42 42
 ffprobe will show it.
43 43
 
44
-FFprobe output is designed to be easily parsable by a textual filter,
44
+ffprobe output is designed to be easily parsable by a textual filter,
45 45
 and consists of one or more sections of the form:
46 46
 @example
47 47
 [SECTION]
... ...
@@ -22,12 +22,12 @@ ffserver [options]
22 22
 @chapter Description
23 23
 @c man begin DESCRIPTION
24 24
 
25
-FFserver is a streaming server for both audio and video. It supports
25
+ffserver is a streaming server for both audio and video. It supports
26 26
 several live feeds, streaming from files and time shifting on live feeds
27 27
 (you can seek to positions in the past on each live feed, provided you
28 28
 specify a big enough feed storage in ffserver.conf).
29 29
 
30
-FFserver runs in daemon mode by default; that is, it puts itself in
30
+ffserver runs in daemon mode by default; that is, it puts itself in
31 31
 the background and detaches from its TTY, unless it is launched in
32 32
 debug mode or a NoDaemon option is specified in the configuration
33 33
 file.
... ...
@@ -39,7 +39,7 @@ information.
39 39
 
40 40
 @section How does it work?
41 41
 
42
-FFserver receives prerecorded files or FFM streams from some ffmpeg
42
+ffserver receives prerecorded files or FFM streams from some ffmpeg
43 43
 instance as input, then streams them over RTP/RTSP/HTTP.
44 44
 
45 45
 An ffserver instance will listen on some port as specified in the
... ...
@@ -57,7 +57,7 @@ file.
57 57
 
58 58
 @section Status stream
59 59
 
60
-FFserver supports an HTTP interface which exposes the current status
60
+ffserver supports an HTTP interface which exposes the current status
61 61
 of the server.
62 62
 
63 63
 Simply point your browser to the address of the special status stream
... ...
@@ -249,8 +249,8 @@ For example:   @samp{http://localhost:8080/test.asf?date=2002-07-26T23:05:00}.
249 249
 Use @file{configfile} instead of @file{/etc/ffserver.conf}.
250 250
 @item -n
251 251
 Enable no-launch mode. This option disables all the Launch directives
252
-within the various <Stream> sections. FFserver will not launch any
253
-ffmpeg instance, so you will have to launch them manually.
252
+within the various <Stream> sections. Since ffserver will not launch
253
+any ffmpeg instances, you will have to launch them manually.
254 254
 @item -d
255 255
 Enable debug mode. This option increases log verbosity, directs log
256 256
 messages to stdout and causes ffserver to run in the foreground