Skip to content
Projects
Groups
Snippets
Help
Loading...
Sign in / Register
Toggle navigation
F
ffmpeg
Project
Project
Details
Activity
Cycle Analytics
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Charts
Issues
0
Issues
0
List
Board
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Charts
Packages
Packages
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Charts
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
submodule
ffmpeg
Commits
5775a183
Commit
5775a183
authored
May 06, 2012
by
Anton Khirnov
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
lavfi: add types and functions for channel layout/samplerate negotiation
parent
394a0267
Expand all
Hide whitespace changes
Inline
Side-by-side
Showing
3 changed files
with
94 additions
and
0 deletions
+94
-0
avfilter.h
libavfilter/avfilter.h
+16
-0
formats.c
libavfilter/formats.c
+0
-0
formats.h
libavfilter/formats.h
+78
-0
No files found.
libavfilter/avfilter.h
View file @
5775a183
...
@@ -618,6 +618,22 @@ struct AVFilterLink {
...
@@ -618,6 +618,22 @@ struct AVFilterLink {
* input link is assumed to be an unchangeable property.
* input link is assumed to be an unchangeable property.
*/
*/
AVRational
time_base
;
AVRational
time_base
;
/*****************************************************************
* All fields below this line are not part of the public API. They
* may not be used outside of libavfilter and can be changed and
* removed at will.
* New public fields should be added right above.
*****************************************************************
*/
/**
* Lists of channel layouts and sample rates used for automatic
* negotiation.
*/
AVFilterFormats
*
in_samplerates
;
AVFilterFormats
*
out_samplerates
;
struct
AVFilterChannelLayouts
*
in_channel_layouts
;
struct
AVFilterChannelLayouts
*
out_channel_layouts
;
};
};
/**
/**
...
...
libavfilter/formats.c
View file @
5775a183
This diff is collapsed.
Click to expand it.
libavfilter/formats.h
0 → 100644
View file @
5775a183
/*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFILTER_FORMATS_H
#define AVFILTER_FORMATS_H
#include "avfilter.h"
typedef
struct
AVFilterChannelLayouts
{
uint64_t
*
channel_layouts
;
///< list of channel layouts
int
nb_channel_layouts
;
///< number of channel layouts
unsigned
refcount
;
///< number of references to this list
struct
AVFilterChannelLayouts
***
refs
;
///< references to this list
}
AVFilterChannelLayouts
;
/**
* Return a channel layouts/samplerates list which contains the intersection of
* the layouts/samplerates of a and b. Also, all the references of a, all the
* references of b, and a and b themselves will be deallocated.
*
* If a and b do not share any common elements, neither is modified, and NULL
* is returned.
*/
AVFilterChannelLayouts
*
ff_merge_channel_layouts
(
AVFilterChannelLayouts
*
a
,
AVFilterChannelLayouts
*
b
);
AVFilterFormats
*
ff_merge_samplerates
(
AVFilterFormats
*
a
,
AVFilterFormats
*
b
);
/**
* Construct an empty AVFilterChannelLayouts/AVFilterFormats struct --
* representing any channel layout/sample rate.
*/
AVFilterChannelLayouts
*
ff_all_channel_layouts
(
void
);
AVFilterFormats
*
ff_all_samplerates
(
void
);
/**
* A helper for query_formats() which sets all links to the same list of channel
* layouts/sample rates. If there are no links hooked to this filter, the list
* is freed.
*/
void
ff_set_common_channel_layouts
(
AVFilterContext
*
ctx
,
AVFilterChannelLayouts
*
layouts
);
void
ff_set_common_samplerates
(
AVFilterContext
*
ctx
,
AVFilterFormats
*
samplerates
);
int
ff_add_channel_layout
(
AVFilterChannelLayouts
**
l
,
uint64_t
channel_layout
);
/**
* Add *ref as a new reference to f.
*/
void
ff_channel_layouts_ref
(
AVFilterChannelLayouts
*
f
,
AVFilterChannelLayouts
**
ref
);
/**
* Remove a reference to a channel layouts list.
*/
void
ff_channel_layouts_unref
(
AVFilterChannelLayouts
**
ref
);
void
ff_channel_layouts_changeref
(
AVFilterChannelLayouts
**
oldref
,
AVFilterChannelLayouts
**
newref
);
#endif // AVFILTER_FORMATS_H
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment