-to and -t are mutually exclusive and -t has priority.
-@item -to @var{position} (@emph{output})
-Stop writing the output at @var{position}.
+@item -to @var{position} (@emph{input/output})
+Stop writing the output or reading the input at @var{position}.
@var{position} must be a time duration specification,
see @ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
consists of only alphanumeric characters. The last key of a sequence of
progress information is always "progress".
+@anchor{stdin option}
@item -stdin
Enable interaction on standard input. On by default unless standard input is
used as an input. To explicitly disable interaction you need to specify
platform-appropriate subdevice (@samp{dxva2} or @samp{vaapi}) and then deriving a
QSV device from that.)
+@item opencl
+@var{device} selects the platform and device as @emph{platform_index.device_index}.
+
+The set of devices can also be filtered using the key-value pairs to find only
+devices matching particular platform or device strings.
+
+The strings usable as filters are:
+@table @option
+@item platform_profile
+@item platform_version
+@item platform_name
+@item platform_vendor
+@item platform_extensions
+@item device_name
+@item device_vendor
+@item driver_version
+@item device_version
+@item device_profile
+@item device_extensions
+@item device_type
+@end table
+
+The indices and filters must together uniquely select a device.
+
+Examples:
+@table @emph
+@item -init_hw_device opencl:0.1
+Choose the second device on the first platform.
+
+@item -init_hw_device opencl:,device_name=Foo9000
+Choose the device with a name containing the string @emph{Foo9000}.
+
+@item -init_hw_device opencl:1,device_type=gpu,device_extensions=cl_khr_fp16
+Choose the GPU device on the second platform supporting the @emph{cl_khr_fp16}
+extension.
+@end table
+
@end table
@item -init_hw_device @var{type}[=@var{name}]@@@var{source}
By default @command{ffmpeg} attempts to read the input(s) as fast as possible.
This option will slow down the reading of the input(s) to the native frame rate
of the input(s). It is useful for real-time output (e.g. live streaming).
-@item -loop_input
-Loop over the input stream. Currently it works only for image
-streams. This option is used for automatic FFserver testing.
-This option is deprecated, use -loop 1.
@item -loop_output @var{number_of_times}
Repeatedly loop output for formats that support looping such as animated GIF
(0 will loop the output infinitely).
discarded if they are not read in a timely manner; raising this value can
avoid it.
-@item -override_ffserver (@emph{global})
-Overrides the input specifications from @command{ffserver}. Using this
-option you can map any input stream to @command{ffserver} and control
-many aspects of the encoding from @command{ffmpeg}. Without this
-option @command{ffmpeg} will transmit to @command{ffserver} what is
-requested by @command{ffserver}.
-
-The option is intended for cases where features are needed that cannot be
-specified to @command{ffserver} but can be to @command{ffmpeg}.
-
@item -sdp_file @var{file} (@emph{global})
Print sdp information for an output stream to @var{file}.
This allows dumping sdp information when at least one output isn't an
@ifset config-not-all
@url{ffmpeg-all.html,ffmpeg-all},
@end ifset
-@url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
+@url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe},
@url{ffmpeg-utils.html,ffmpeg-utils},
@url{ffmpeg-scaler.html,ffmpeg-scaler},
@url{ffmpeg-resampler.html,ffmpeg-resampler},
@ifset config-not-all
ffmpeg-all(1),
@end ifset
-ffplay(1), ffprobe(1), ffserver(1),
+ffplay(1), ffprobe(1),
ffmpeg-utils(1), ffmpeg-scaler(1), ffmpeg-resampler(1),
ffmpeg-codecs(1), ffmpeg-bitstream-filters(1), ffmpeg-formats(1),
ffmpeg-devices(1), ffmpeg-protocols(1), ffmpeg-filters(1)
projects / ffmpeg / blobdiff