1FFPLAY(1)                                                            FFPLAY(1)
2
3
4

NAME

6       ffplay - FFplay media player
7

SYNOPSIS

9       ffplay [options] [input_url]
10

DESCRIPTION

12       FFplay is a very simple and portable media player using the FFmpeg
13       libraries and the SDL library. It is mostly used as a testbed for the
14       various FFmpeg APIs.
15

OPTIONS

17       All the numerical options, if not specified otherwise, accept a string
18       representing a number as input, which may be followed by one of the SI
19       unit prefixes, for example: 'K', 'M', or 'G'.
20
21       If 'i' is appended to the SI unit prefix, the complete prefix will be
22       interpreted as a unit prefix for binary multiples, which are based on
23       powers of 1024 instead of powers of 1000. Appending 'B' to the SI unit
24       prefix multiplies the value by 8. This allows using, for example: 'KB',
25       'MiB', 'G' and 'B' as number suffixes.
26
27       Options which do not take arguments are boolean options, and set the
28       corresponding value to true. They can be set to false by prefixing the
29       option name with "no". For example using "-nofoo" will set the boolean
30       option with name "foo" to false.
31
32   Stream specifiers
33       Some options are applied per-stream, e.g. bitrate or codec. Stream
34       specifiers are used to precisely specify which stream(s) a given option
35       belongs to.
36
37       A stream specifier is a string generally appended to the option name
38       and separated from it by a colon. E.g. "-codec:a:1 ac3" contains the
39       "a:1" stream specifier, which matches the second audio stream.
40       Therefore, it would select the ac3 codec for the second audio stream.
41
42       A stream specifier can match several streams, so that the option is
43       applied to all of them. E.g. the stream specifier in "-b:a 128k"
44       matches all audio streams.
45
46       An empty stream specifier matches all streams. For example, "-codec
47       copy" or "-codec: copy" would copy all the streams without reencoding.
48
49       Possible forms of stream specifiers are:
50
51       stream_index
52           Matches the stream with this index. E.g. "-threads:1 4" would set
53           the thread count for the second stream to 4. If stream_index is
54           used as an additional stream specifier (see below), then it selects
55           stream number stream_index from the matching streams. Stream
56           numbering is based on the order of the streams as detected by
57           libavformat except when a program ID is also specified. In this
58           case it is based on the ordering of the streams in the program.
59
60       stream_type[:additional_stream_specifier]
61           stream_type is one of following: 'v' or 'V' for video, 'a' for
62           audio, 's' for subtitle, 'd' for data, and 't' for attachments. 'v'
63           matches all video streams, 'V' only matches video streams which are
64           not attached pictures, video thumbnails or cover arts. If
65           additional_stream_specifier is used, then it matches streams which
66           both have this type and match the additional_stream_specifier.
67           Otherwise, it matches all streams of the specified type.
68
69       p:program_id[:additional_stream_specifier]
70           Matches streams which are in the program with the id program_id. If
71           additional_stream_specifier is used, then it matches streams which
72           both are part of the program and match the
73           additional_stream_specifier.
74
75       #stream_id or i:stream_id
76           Match the stream by stream id (e.g. PID in MPEG-TS container).
77
78       m:key[:value]
79           Matches streams with the metadata tag key having the specified
80           value. If value is not given, matches streams that contain the
81           given tag with any value.
82
83       u   Matches streams with usable configuration, the codec must be
84           defined and the essential information such as video dimension or
85           audio sample rate must be present.
86
87           Note that in ffmpeg, matching by metadata will only work properly
88           for input files.
89
90   Generic options
91       These options are shared amongst the ff* tools.
92
93       -L  Show license.
94
95       -h, -?, -help, --help [arg]
96           Show help. An optional parameter may be specified to print help
97           about a specific item. If no argument is specified, only basic (non
98           advanced) tool options are shown.
99
100           Possible values of arg are:
101
102           long
103               Print advanced tool options in addition to the basic tool
104               options.
105
106           full
107               Print complete list of options, including shared and private
108               options for encoders, decoders, demuxers, muxers, filters, etc.
109
110           decoder=decoder_name
111               Print detailed information about the decoder named
112               decoder_name. Use the -decoders option to get a list of all
113               decoders.
114
115           encoder=encoder_name
116               Print detailed information about the encoder named
117               encoder_name. Use the -encoders option to get a list of all
118               encoders.
119
120           demuxer=demuxer_name
121               Print detailed information about the demuxer named
122               demuxer_name. Use the -formats option to get a list of all
123               demuxers and muxers.
124
125           muxer=muxer_name
126               Print detailed information about the muxer named muxer_name.
127               Use the -formats option to get a list of all muxers and
128               demuxers.
129
130           filter=filter_name
131               Print detailed information about the filter named filter_name.
132               Use the -filters option to get a list of all filters.
133
134           bsf=bitstream_filter_name
135               Print detailed information about the bitstream filter named
136               bitstream_filter_name.  Use the -bsfs option to get a list of
137               all bitstream filters.
138
139           protocol=protocol_name
140               Print detailed information about the protocol named
141               protocol_name.  Use the -protocols option to get a list of all
142               protocols.
143
144       -version
145           Show version.
146
147       -buildconf
148           Show the build configuration, one option per line.
149
150       -formats
151           Show available formats (including devices).
152
153       -demuxers
154           Show available demuxers.
155
156       -muxers
157           Show available muxers.
158
159       -devices
160           Show available devices.
161
162       -codecs
163           Show all codecs known to libavcodec.
164
165           Note that the term 'codec' is used throughout this documentation as
166           a shortcut for what is more correctly called a media bitstream
167           format.
168
169       -decoders
170           Show available decoders.
171
172       -encoders
173           Show all available encoders.
174
175       -bsfs
176           Show available bitstream filters.
177
178       -protocols
179           Show available protocols.
180
181       -filters
182           Show available libavfilter filters.
183
184       -pix_fmts
185           Show available pixel formats.
186
187       -sample_fmts
188           Show available sample formats.
189
190       -layouts
191           Show channel names and standard channel layouts.
192
193       -dispositions
194           Show stream dispositions.
195
196       -colors
197           Show recognized color names.
198
199       -sources device[,opt1=val1[,opt2=val2]...]
200           Show autodetected sources of the input device.  Some devices may
201           provide system-dependent source names that cannot be autodetected.
202           The returned list cannot be assumed to be always complete.
203
204                   ffmpeg -sources pulse,server=192.168.0.4
205
206       -sinks device[,opt1=val1[,opt2=val2]...]
207           Show autodetected sinks of the output device.  Some devices may
208           provide system-dependent sink names that cannot be autodetected.
209           The returned list cannot be assumed to be always complete.
210
211                   ffmpeg -sinks pulse,server=192.168.0.4
212
213       -loglevel [flags+]loglevel | -v [flags+]loglevel
214           Set logging level and flags used by the library.
215
216           The optional flags prefix can consist of the following values:
217
218           repeat
219               Indicates that repeated log output should not be compressed to
220               the first line and the "Last message repeated n times" line
221               will be omitted.
222
223           level
224               Indicates that log output should add a "[level]" prefix to each
225               message line. This can be used as an alternative to log
226               coloring, e.g. when dumping the log to file.
227
228           Flags can also be used alone by adding a '+'/'-' prefix to
229           set/reset a single flag without affecting other flags or changing
230           loglevel. When setting both flags and loglevel, a '+' separator is
231           expected between the last flags value and before loglevel.
232
233           loglevel is a string or a number containing one of the following
234           values:
235
236           quiet, -8
237               Show nothing at all; be silent.
238
239           panic, 0
240               Only show fatal errors which could lead the process to crash,
241               such as an assertion failure. This is not currently used for
242               anything.
243
244           fatal, 8
245               Only show fatal errors. These are errors after which the
246               process absolutely cannot continue.
247
248           error, 16
249               Show all errors, including ones which can be recovered from.
250
251           warning, 24
252               Show all warnings and errors. Any message related to possibly
253               incorrect or unexpected events will be shown.
254
255           info, 32
256               Show informative messages during processing. This is in
257               addition to warnings and errors. This is the default value.
258
259           verbose, 40
260               Same as "info", except more verbose.
261
262           debug, 48
263               Show everything, including debugging information.
264
265           trace, 56
266
267           For example to enable repeated log output, add the "level" prefix,
268           and set loglevel to "verbose":
269
270                   ffmpeg -loglevel repeat+level+verbose -i input output
271
272           Another example that enables repeated log output without affecting
273           current state of "level" prefix flag or loglevel:
274
275                   ffmpeg [...] -loglevel +repeat
276
277           By default the program logs to stderr. If coloring is supported by
278           the terminal, colors are used to mark errors and warnings. Log
279           coloring can be disabled setting the environment variable
280           AV_LOG_FORCE_NOCOLOR, or can be forced setting the environment
281           variable AV_LOG_FORCE_COLOR.
282
283       -report
284           Dump full command line and log output to a file named
285           "program-YYYYMMDD-HHMMSS.log" in the current directory.  This file
286           can be useful for bug reports.  It also implies "-loglevel debug".
287
288           Setting the environment variable FFREPORT to any value has the same
289           effect. If the value is a ':'-separated key=value sequence, these
290           options will affect the report; option values must be escaped if
291           they contain special characters or the options delimiter ':' (see
292           the ``Quoting and escaping'' section in the ffmpeg-utils manual).
293
294           The following options are recognized:
295
296           file
297               set the file name to use for the report; %p is expanded to the
298               name of the program, %t is expanded to a timestamp, "%%" is
299               expanded to a plain "%"
300
301           level
302               set the log verbosity level using a numerical value (see
303               "-loglevel").
304
305           For example, to output a report to a file named ffreport.log using
306           a log level of 32 (alias for log level "info"):
307
308                   FFREPORT=file=ffreport.log:level=32 ffmpeg -i input output
309
310           Errors in parsing the environment variable are not fatal, and will
311           not appear in the report.
312
313       -hide_banner
314           Suppress printing banner.
315
316           All FFmpeg tools will normally show a copyright notice, build
317           options and library versions. This option can be used to suppress
318           printing this information.
319
320       -cpuflags flags (global)
321           Allows setting and clearing cpu flags. This option is intended for
322           testing. Do not use it unless you know what you're doing.
323
324                   ffmpeg -cpuflags -sse+mmx ...
325                   ffmpeg -cpuflags mmx ...
326                   ffmpeg -cpuflags 0 ...
327
328           Possible flags for this option are:
329
330           x86
331               mmx
332               mmxext
333               sse
334               sse2
335               sse2slow
336               sse3
337               sse3slow
338               ssse3
339               atom
340               sse4.1
341               sse4.2
342               avx
343               avx2
344               xop
345               fma3
346               fma4
347               3dnow
348               3dnowext
349               bmi1
350               bmi2
351               cmov
352           ARM
353               armv5te
354               armv6
355               armv6t2
356               vfp
357               vfpv3
358               neon
359               setend
360           AArch64
361               armv8
362               vfp
363               neon
364           PowerPC
365               altivec
366           Specific Processors
367               pentium2
368               pentium3
369               pentium4
370               k6
371               k62
372               athlon
373               athlonxp
374               k8
375       -cpucount count (global)
376           Override detection of CPU count. This option is intended for
377           testing. Do not use it unless you know what you're doing.
378
379                   ffmpeg -cpucount 2
380
381       -max_alloc bytes
382           Set the maximum size limit for allocating a block on the heap by
383           ffmpeg's family of malloc functions. Exercise extreme caution when
384           using this option. Don't use if you do not understand the full
385           consequence of doing so.  Default is INT_MAX.
386
387   AVOptions
388       These options are provided directly by the libavformat, libavdevice and
389       libavcodec libraries. To see the list of available AVOptions, use the
390       -help option. They are separated into two categories:
391
392       generic
393           These options can be set for any container, codec or device.
394           Generic options are listed under AVFormatContext options for
395           containers/devices and under AVCodecContext options for codecs.
396
397       private
398           These options are specific to the given container, device or codec.
399           Private options are listed under their corresponding
400           containers/devices/codecs.
401
402       For example to write an ID3v2.3 header instead of a default ID3v2.4 to
403       an MP3 file, use the id3v2_version private option of the MP3 muxer:
404
405               ffmpeg -i input.flac -id3v2_version 3 out.mp3
406
407       All codec AVOptions are per-stream, and thus a stream specifier should
408       be attached to them:
409
410               ffmpeg -i multichannel.mxf -map 0:v:0 -map 0:a:0 -map 0:a:0 -c:a:0 ac3 -b:a:0 640k -ac:a:1 2 -c:a:1 aac -b:2 128k out.mp4
411
412       In the above example, a multichannel audio stream is mapped twice for
413       output.  The first instance is encoded with codec ac3 and bitrate 640k.
414       The second instance is downmixed to 2 channels and encoded with codec
415       aac. A bitrate of 128k is specified for it using absolute index of the
416       output stream.
417
418       Note: the -nooption syntax cannot be used for boolean AVOptions, use
419       -option 0/-option 1.
420
421       Note: the old undocumented way of specifying per-stream AVOptions by
422       prepending v/a/s to the options name is now obsolete and will be
423       removed soon.
424
425   Main options
426       -x width
427           Force displayed width.
428
429       -y height
430           Force displayed height.
431
432       -fs Start in fullscreen mode.
433
434       -an Disable audio.
435
436       -vn Disable video.
437
438       -sn Disable subtitles.
439
440       -ss pos
441           Seek to pos. Note that in most formats it is not possible to seek
442           exactly, so ffplay will seek to the nearest seek point to pos.
443
444           pos must be a time duration specification, see the Time duration
445           section in the ffmpeg-utils(1) manual.
446
447       -t duration
448           Play duration seconds of audio/video.
449
450           duration must be a time duration specification, see the Time
451           duration section in the ffmpeg-utils(1) manual.
452
453       -bytes
454           Seek by bytes.
455
456       -seek_interval
457           Set custom interval, in seconds, for seeking using left/right keys.
458           Default is 10 seconds.
459
460       -nodisp
461           Disable graphical display.
462
463       -noborder
464           Borderless window.
465
466       -alwaysontop
467           Window always on top. Available on: X11 with SDL >= 2.0.5, Windows
468           SDL >= 2.0.6.
469
470       -volume
471           Set the startup volume. 0 means silence, 100 means no volume
472           reduction or amplification. Negative values are treated as 0,
473           values above 100 are treated as 100.
474
475       -f fmt
476           Force format.
477
478       -window_title title
479           Set window title (default is the input filename).
480
481       -left title
482           Set the x position for the left of the window (default is a
483           centered window).
484
485       -top title
486           Set the y position for the top of the window (default is a centered
487           window).
488
489       -loop number
490           Loops movie playback <number> times. 0 means forever.
491
492       -showmode mode
493           Set the show mode to use.  Available values for mode are:
494
495           0, video
496               show video
497
498           1, waves
499               show audio waves
500
501           2, rdft
502               show audio frequency band using RDFT ((Inverse) Real Discrete
503               Fourier Transform)
504
505           Default value is "video", if video is not present or cannot be
506           played "rdft" is automatically selected.
507
508           You can interactively cycle through the available show modes by
509           pressing the key w.
510
511       -vf filtergraph
512           Create the filtergraph specified by filtergraph and use it to
513           filter the video stream.
514
515           filtergraph is a description of the filtergraph to apply to the
516           stream, and must have a single video input and a single video
517           output. In the filtergraph, the input is associated to the label
518           "in", and the output to the label "out". See the ffmpeg-filters
519           manual for more information about the filtergraph syntax.
520
521           You can specify this parameter multiple times and cycle through the
522           specified filtergraphs along with the show modes by pressing the
523           key w.
524
525       -af filtergraph
526           filtergraph is a description of the filtergraph to apply to the
527           input audio.  Use the option "-filters" to show all the available
528           filters (including sources and sinks).
529
530       -i input_url
531           Read input_url.
532
533   Advanced options
534       -stats
535           Print several playback statistics, in particular show the stream
536           duration, the codec parameters, the current position in the stream
537           and the audio/video synchronisation drift. It is shown by default,
538           unless the log level is lower than "info". Its display can be
539           forced by manually specifying this option. To disable it, you need
540           to specify "-nostats".
541
542       -fast
543           Non-spec-compliant optimizations.
544
545       -genpts
546           Generate pts.
547
548       -sync type
549           Set the master clock to audio ("type=audio"), video ("type=video")
550           or external ("type=ext"). Default is audio. The master clock is
551           used to control audio-video synchronization. Most media players use
552           audio as master clock, but in some cases (streaming or high quality
553           broadcast) it is necessary to change that. This option is mainly
554           used for debugging purposes.
555
556       -ast audio_stream_specifier
557           Select the desired audio stream using the given stream specifier.
558           The stream specifiers are described in the Stream specifiers
559           chapter. If this option is not specified, the "best" audio stream
560           is selected in the program of the already selected video stream.
561
562       -vst video_stream_specifier
563           Select the desired video stream using the given stream specifier.
564           The stream specifiers are described in the Stream specifiers
565           chapter. If this option is not specified, the "best" video stream
566           is selected.
567
568       -sst subtitle_stream_specifier
569           Select the desired subtitle stream using the given stream
570           specifier. The stream specifiers are described in the Stream
571           specifiers chapter. If this option is not specified, the "best"
572           subtitle stream is selected in the program of the already selected
573           video or audio stream.
574
575       -autoexit
576           Exit when video is done playing.
577
578       -exitonkeydown
579           Exit if any key is pressed.
580
581       -exitonmousedown
582           Exit if any mouse button is pressed.
583
584       -codec:media_specifier codec_name
585           Force a specific decoder implementation for the stream identified
586           by media_specifier, which can assume the values "a" (audio), "v"
587           (video), and "s" subtitle.
588
589       -acodec codec_name
590           Force a specific audio decoder.
591
592       -vcodec codec_name
593           Force a specific video decoder.
594
595       -scodec codec_name
596           Force a specific subtitle decoder.
597
598       -autorotate
599           Automatically rotate the video according to file metadata. Enabled
600           by default, use -noautorotate to disable it.
601
602       -framedrop
603           Drop video frames if video is out of sync. Enabled by default if
604           the master clock is not set to video. Use this option to enable
605           frame dropping for all master clock sources, use -noframedrop to
606           disable it.
607
608       -infbuf
609           Do not limit the input buffer size, read as much data as possible
610           from the input as soon as possible. Enabled by default for realtime
611           streams, where data may be dropped if not read in time. Use this
612           option to enable infinite buffers for all inputs, use -noinfbuf to
613           disable it.
614
615       -filter_threads nb_threads
616           Defines how many threads are used to process a filter pipeline.
617           Each pipeline will produce a thread pool with this many threads
618           available for parallel processing. The default is 0 which means
619           that the thread count will be determined by the number of available
620           CPUs.
621
622   While playing
623       q, ESC
624           Quit.
625
626       f   Toggle full screen.
627
628       p, SPC
629           Pause.
630
631       m   Toggle mute.
632
633       9, 0
634       /, *
635           Decrease and increase volume respectively.
636
637       a   Cycle audio channel in the current program.
638
639       v   Cycle video channel.
640
641       t   Cycle subtitle channel in the current program.
642
643       c   Cycle program.
644
645       w   Cycle video filters or show modes.
646
647       s   Step to the next frame.
648
649           Pause if the stream is not already paused, step to the next video
650           frame, and pause.
651
652       left/right
653           Seek backward/forward 10 seconds.
654
655       down/up
656           Seek backward/forward 1 minute.
657
658       page down/page up
659           Seek to the previous/next chapter.  or if there are no chapters
660           Seek backward/forward 10 minutes.
661
662       right mouse click
663           Seek to percentage in file corresponding to fraction of width.
664
665       left mouse double-click
666           Toggle full screen.
667

SEE ALSO

669       ffplay-all(1), ffmpeg(1), ffprobe(1), ffmpeg-utils(1),
670       ffmpeg-scaler(1), ffmpeg-resampler(1), ffmpeg-codecs(1),
671       ffmpeg-bitstream-filters(1), ffmpeg-formats(1), ffmpeg-devices(1),
672       ffmpeg-protocols(1), ffmpeg-filters(1)
673

AUTHORS

675       The FFmpeg developers.
676
677       For details about the authorship, see the Git history of the project
678       (git://source.ffmpeg.org/ffmpeg), e.g. by typing the command git log in
679       the FFmpeg source directory, or browsing the online repository at
680       <http://source.ffmpeg.org>.
681
682       Maintainers for the specific components are listed in the file
683       MAINTAINERS in the source code tree.
684
685
686
687                                                                     FFPLAY(1)
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