a735bbbb7a
Around 01/28/11 18:56, Ronald S. Bultje scribbled:
> That patch is now merged, can you submit the update to muxers.texi?
> Then we'll apply the whole thing.
See attached. I hope the documentation is enough.
--
Georgi Chorbadzhiyski
http://georgi.unixsol.org/
From c236024b8254f5c2c45934c30fff390cb0e55a5e Mon Sep 17 00:00:00 2001
From: Georgi Chorbadzhiyski <gf@unixsol.org>
Date: Tue, 25 Jan 2011 13:09:17 +0200
Subject: [PATCH] mpegts: Replace defines in with AVOptions
This patch adds support for setting transport_stream_id,
original_network_id, service_id, pmt_start_pid and start_pid
in mpegts muxer.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 445996aa51)
113 lines
3.9 KiB
Plaintext
113 lines
3.9 KiB
Plaintext
@chapter Muxers
|
|
@c man begin MUXERS
|
|
|
|
Muxers are configured elements in FFmpeg which allow writing
|
|
multimedia streams to a particular type of file.
|
|
|
|
When you configure your FFmpeg build, all the supported muxers
|
|
are enabled by default. You can list all available muxers using the
|
|
configure option @code{--list-muxers}.
|
|
|
|
You can disable all the muxers with the configure option
|
|
@code{--disable-muxers} and selectively enable / disable single muxers
|
|
with the options @code{--enable-muxer=@var{MUXER}} /
|
|
@code{--disable-muxer=@var{MUXER}}.
|
|
|
|
The option @code{-formats} of the ff* tools will display the list of
|
|
enabled muxers.
|
|
|
|
A description of some of the currently available muxers follows.
|
|
|
|
@section image2
|
|
|
|
Image file muxer.
|
|
|
|
This muxer writes video frames to multiple image files specified by a
|
|
pattern.
|
|
|
|
The pattern may contain the string "%d" or "%0@var{N}d", which
|
|
specifies the position of the characters representing a numbering in
|
|
the filenames. If the form "%d0@var{N}d" is used, the string
|
|
representing the number in each filename is 0-padded to @var{N}
|
|
digits. The literal character '%' can be specified in the pattern with
|
|
the string "%%".
|
|
|
|
If the pattern contains "%d" or "%0@var{N}d", the first filename of
|
|
the file list specified will contain the number 1, all the following
|
|
numbers will be sequential.
|
|
|
|
The pattern may contain a suffix which is used to automatically
|
|
determine the format of the image files to write.
|
|
|
|
For example the pattern "img-%03d.bmp" will specify a sequence of
|
|
filenames of the form @file{img-001.bmp}, @file{img-002.bmp}, ...,
|
|
@file{img-010.bmp}, etc.
|
|
The pattern "img%%-%d.jpg" will specify a sequence of filenames of the
|
|
form @file{img%-1.jpg}, @file{img%-2.jpg}, ..., @file{img%-10.jpg},
|
|
etc.
|
|
|
|
The following example shows how to use @file{ffmpeg} for creating a
|
|
sequence of files @file{img-001.jpeg}, @file{img-002.jpeg}, ...,
|
|
taking one image every second from the input video:
|
|
@example
|
|
ffmpeg -i in.avi -r 1 -f image2 'img-%03d.jpeg'
|
|
@end example
|
|
|
|
Note that with @file{ffmpeg}, if the format is not specified with the
|
|
@code{-f} option and the output filename specifies an image file
|
|
format, the image2 muxer is automatically selected, so the previous
|
|
command can be written as:
|
|
@example
|
|
ffmpeg -i in.avi -r 1 'img-%03d.jpeg'
|
|
@end example
|
|
|
|
Note also that the pattern must not necessarily contain "%d" or
|
|
"%0@var{N}d", for example to create a single image file
|
|
@file{img.jpeg} from the input video you can employ the command:
|
|
@example
|
|
ffmpeg -i in.avi -f image2 -vframes 1 img.jpeg
|
|
@end example
|
|
|
|
@section mpegts
|
|
|
|
MPEG transport stream muxer.
|
|
|
|
This muxer implements ISO 13818-1 and part of ETSI EN 300 468.
|
|
|
|
The muxer options are:
|
|
|
|
@table @option
|
|
@item -mpegts_original_network_id @var{number}
|
|
Set the original_network_id (default 0x0001). This is unique identifier
|
|
of a network in DVB. Its main use is in the unique identification of a
|
|
service through the path Original_Network_ID, Transport_Stream_ID.
|
|
@item -mpegts_transport_stream_id @var{number}
|
|
Set the transport_stream_id (default 0x0001). This identifies a
|
|
transponder in DVB.
|
|
@item -mpegts_service_id @var{number}
|
|
Set the service_id (default 0x0001) also known as program in DVB.
|
|
@item -mpegts_pmt_start_pid @var{number}
|
|
Set the first PID for PMT (default 0x1000, max 0x1f00).
|
|
@item -mpegts_start_pid @var{number}
|
|
Set the first PID for data packets (default 0x0100, max 0x0f00).
|
|
@end table
|
|
|
|
The recognized metadata settings in mpegts muxer are @code{service_provider}
|
|
and @code{service_name}. If they are not set the default for
|
|
@code{service_provider} is "FFmpeg" and the default for
|
|
@code{service_name} is "Service01".
|
|
|
|
@example
|
|
ffmpeg -i file.mpg -acodec copy -vcodec copy \
|
|
-mpegts_original_network_id 0x1122 \
|
|
-mpegts_transport_stream_id 0x3344 \
|
|
-mpegts_service_id 0x5566 \
|
|
-mpegts_pmt_start_pid 0x1500 \
|
|
-mpegts_start_pid 0x150 \
|
|
-metadata service_provider="Some provider" \
|
|
-metadata service_name="Some Channel" \
|
|
-y out.ts
|
|
@end example
|
|
|
|
@c man end MUXERS
|