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avfilter: Add a header for internal generic-layer APIs 

This commit moves the generic-layer stuff (that is not used
by filters) to a new header of its own, similarly to
5e7b5b0090 for libavcodec.
thread.h and link_internal.h are merged into this header.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2024-02-10 17:31:13 +01:00
parent db98b0e04e
commit a272c9cffa
10 changed files with 132 additions and 154 deletions
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2
libavfilter/avfilter.c
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@ -36,12 +36,12 @@
#include "audio.h"
#include "avfilter.h"
#include "avfilter_internal.h"
#include "filters.h"
#include "formats.h"
#include "framequeue.h"
#include "framepool.h"
#include "internal.h"
#include "link_internal.h"
#include "video.h"
static void tlog_ref(void *ctx, AVFrame *ref, int end)

126
libavfilter/avfilter_internal.h Normal file
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@ -0,0 +1,126 @@
/*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* APIs internal to the generic filter(graph) layer.
*
* MUST NOT be included by individual filters.
*/
#ifndef AVFILTER_AVFILTER_INTERNAL_H
#define AVFILTER_AVFILTER_INTERNAL_H
#include <stdint.h>
#include "avfilter.h"
#include "framequeue.h"
typedef struct FilterLinkInternal {
AVFilterLink l;
/**
* Queue of frames waiting to be filtered.
*/
FFFrameQueue fifo;
/**
* If set, the source filter can not generate a frame as is.
* The goal is to avoid repeatedly calling the request_frame() method on
* the same link.
*/
int frame_blocked_in;
/**
* Link input status.
* If not zero, all attempts of filter_frame will fail with the
* corresponding code.
*/
int status_in;
/**
* Timestamp of the input status change.
*/
int64_t status_in_pts;
/**
* Link output status.
* If not zero, all attempts of request_frame will fail with the
* corresponding code.
*/
int status_out;
} FilterLinkInternal;
static inline FilterLinkInternal *ff_link_internal(AVFilterLink *link)
{
return (FilterLinkInternal*)link;
}
typedef struct AVFilterCommand {
double time; ///< time expressed in seconds
char *command; ///< command
char *arg; ///< optional argument for the command
int flags;
struct AVFilterCommand *next;
} AVFilterCommand;
struct AVFilterGraphInternal {
void *thread;
avfilter_execute_func *thread_execute;
FFFrameQueueGlobal frame_queues;
};
/**
* Update the position of a link in the age heap.
*/
void ff_avfilter_graph_update_heap(AVFilterGraph *graph, AVFilterLink *link);
/**
* Allocate a new filter context and return it.
*
* @param filter what filter to create an instance of
* @param inst_name name to give to the new filter context
*
* @return newly created filter context or NULL on failure
*/
AVFilterContext *ff_filter_alloc(const AVFilter *filter, const char *inst_name);
/**
* Remove a filter from a graph;
*/
void ff_filter_graph_remove_filter(AVFilterGraph *graph, AVFilterContext *filter);
int ff_filter_activate(AVFilterContext *filter);
/**
* Parse filter options into a dictionary.
*
* @param logctx context for logging
* @param priv_class a filter's private class for shorthand options or NULL
* @param options dictionary to store parsed options in
* @param args options string to parse
*
* @return a non-negative number on success, a negative error code on failure
*/
int ff_filter_opt_parse(void *logctx, const AVClass *priv_class,
AVDictionary **options, const char *args);
int ff_graph_thread_init(AVFilterGraph *graph);
void ff_graph_thread_free(AVFilterGraph *graph);
#endif /* AVFILTER_AVFILTER_INTERNAL_H */

3
libavfilter/avfiltergraph.c
View File

@ -34,12 +34,11 @@
#include "avfilter.h"
#include "avfilter_internal.h"
#include "buffersink.h"
#include "formats.h"
#include "framequeue.h"
#include "internal.h"
#include "link_internal.h"
#include "thread.h"
#define OFFSET(x) offsetof(AVFilterGraph, x)
#define F AV_OPT_FLAG_FILTERING_PARAM

2
libavfilter/buffersink.c
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@ -32,12 +32,12 @@
#include "audio.h"
#include "avfilter.h"
#include "avfilter_internal.h"
#include "buffersink.h"
#include "filters.h"
#include "formats.h"
#include "framequeue.h"
#include "internal.h"
#include "link_internal.h"
#include "video.h"
typedef struct BufferSinkContext {

1
libavfilter/graphparser.c
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@ -29,6 +29,7 @@
#include "libavutil/opt.h"
#include "avfilter.h"
#include "avfilter_internal.h"
#include "internal.h"
#define WHITESPACES " \n\t\r"

50
libavfilter/internal.h
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@ -26,20 +26,6 @@
#include "libavutil/internal.h"
#include "avfilter.h"
#include "framequeue.h"
typedef struct AVFilterCommand {
double time; ///< time expressed in seconds
char *command; ///< command
char *arg; ///< optional argument for the command
int flags;
struct AVFilterCommand *next;
} AVFilterCommand;
/**
* Update the position of a link in the age heap.
*/
void ff_avfilter_graph_update_heap(AVFilterGraph *graph, AVFilterLink *link);
/**
* A filter pad used for either input or output.
@ -127,12 +113,6 @@ struct AVFilterPad {
int (*config_props)(AVFilterLink *link);
};
struct AVFilterGraphInternal {
void *thread;
avfilter_execute_func *thread_execute;
FFFrameQueueGlobal frame_queues;
};
typedef struct FFFilterContext {
/**
* The public AVFilterContext. See avfilter.h for it.
@ -356,23 +336,6 @@ int ff_request_frame(AVFilterLink *link);
*/
int ff_filter_frame(AVFilterLink *link, AVFrame *frame);
/**
* Allocate a new filter context and return it.
*
* @param filter what filter to create an instance of
* @param inst_name name to give to the new filter context
*
* @return newly created filter context or NULL on failure
*/
AVFilterContext *ff_filter_alloc(const AVFilter *filter, const char *inst_name);
int ff_filter_activate(AVFilterContext *filter);
/**
* Remove a filter from a graph;
*/
void ff_filter_graph_remove_filter(AVFilterGraph *graph, AVFilterContext *filter);
/**
* The filter is aware of hardware frames, and any hardware frame context
* should not be automatically propagated through it.
@ -415,17 +378,4 @@ int ff_filter_process_command(AVFilterContext *ctx, const char *cmd,
int ff_filter_init_hw_frames(AVFilterContext *avctx, AVFilterLink *link,
int default_pool_size);
/**
* Parse filter options into a dictionary.
*
* @param logctx context for logging
* @param priv_class a filter's private class for shorthand options or NULL
* @param options dictionary to store parsed options in
* @param args options string to parse
*
* @return a non-negative number on success, a negative error code on failure
*/
int ff_filter_opt_parse(void *logctx, const AVClass *priv_class,
AVDictionary **options, const char *args);
#endif /* AVFILTER_INTERNAL_H */

69
libavfilter/link_internal.h
View File

@ -1,69 +0,0 @@
/*
* Internal filter link API
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFILTER_LINK_INTERNAL_H
#define AVFILTER_LINK_INTERNAL_H
#include <stdint.h>
#include "avfilter.h"
#include "framequeue.h"
typedef struct FilterLinkInternal {
AVFilterLink l;
/**
* Queue of frames waiting to be filtered.
*/
FFFrameQueue fifo;
/**
* If set, the source filter can not generate a frame as is.
* The goal is to avoid repeatedly calling the request_frame() method on
* the same link.
*/
int frame_blocked_in;
/**
* Link input status.
* If not zero, all attempts of filter_frame will fail with the
* corresponding code.
*/
int status_in;
/**
* Timestamp of the input status change.
*/
int64_t status_in_pts;
/**
* Link output status.
* If not zero, all attempts of request_frame will fail with the
* corresponding code.
*/
int status_out;
} FilterLinkInternal;
static inline FilterLinkInternal *ff_link_internal(AVFilterLink *link)
{
return (FilterLinkInternal*)link;
}
#endif /* AVFILTER_LINK_INTERNAL_H */

3
libavfilter/pthread.c
View File

@ -29,8 +29,7 @@
#include "libavutil/slicethread.h"
#include "avfilter.h"
#include "internal.h"
#include "thread.h"
#include "avfilter_internal.h"
typedef struct ThreadContext {
AVFilterGraph *graph;

2
libavfilter/tests/filtfmts.c
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@ -26,10 +26,10 @@
#include "libavutil/samplefmt.h"
#include "libavfilter/avfilter.h"
#include "libavfilter/avfilter_internal.h"
#include "libavfilter/formats.h"
#include "libavfilter/framequeue.h"
#include "libavfilter/internal.h"
#include "libavfilter/link_internal.h"
static void print_formats_internal(AVFilterLink **links, const AVFilterPad *pads,
unsigned nb, size_t fmts_cfg_offset,

28
libavfilter/thread.h
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@ -1,28 +0,0 @@
/*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFILTER_THREAD_H
#define AVFILTER_THREAD_H
#include "avfilter.h"
int ff_graph_thread_init(AVFilterGraph *graph);
void ff_graph_thread_free(AVFilterGraph *graph);
#endif /* AVFILTER_THREAD_H */