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Added support for a realease function to eliminate the context blocks used

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by each hook.

Originally committed as revision 1294 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Philip Gladstone 2002-11-30 17:16:32 +00:00
parent 9e4e1659d6
commit 042f24652e
2 changed files with 30 additions and 3 deletions
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19
libavformat/framehook.c
View File

@ -21,7 +21,7 @@
#include "framehook.h"
#include "avformat.h"
#ifdef HAVE_VHOOK
#ifdef CONFIG_HAVE_DLFCN
#include <dlfcn.h>
#endif
@ -30,6 +30,7 @@ typedef struct _FrameHookEntry {
struct _FrameHookEntry *next;
FrameHookConfigureFn Configure;
FrameHookProcessFn Process;
FrameHookReleaseFn Release;
void *ctx;
} FrameHookEntry;
@ -59,6 +60,7 @@ int frame_hook_add(int argc, char *argv[])
fhe->Configure = dlsym(loaded, "Configure");
fhe->Process = dlsym(loaded, "Process");
fhe->Release = dlsym(loaded, "Release"); /* Optional */
if (!fhe->Process) {
fprintf(stderr, "Failed to find Process entrypoint in %s\n", argv[0]);
@ -100,3 +102,18 @@ void frame_hook_process(AVPicture *pict, enum PixelFormat pix_fmt, int width, in
}
}
}
void frame_hook_release()
{
FrameHookEntry *fhe;
FrameHookEntry *fhenext;
for (fhe = first_hook; fhe; fhe = fhenext) {
fhenext = fhe->next;
if (fhe->Release)
fhe->Release(fhe->ctx);
av_free(fhe);
}
first_hook = NULL;
}

14
libavformat/framehook.h
View File

@ -8,12 +8,22 @@
#include "avcodec.h"
/* Function must be called 'Configure' */
typedef int (*FrameHookConfigureFn)(void **ctxp, int argc, char *argv[]);
typedef int (FrameHookConfigure)(void **ctxp, int argc, char *argv[]);
typedef FrameHookConfigure *FrameHookConfigureFn;
extern FrameHookConfigure Configure;
/* Function must be called 'Process' */
typedef void (*FrameHookProcessFn)(void *ctx, struct AVPicture *pict, enum PixelFormat pix_fmt, int width, int height, INT64 pts);
typedef void (FrameHookProcess)(void *ctx, struct AVPicture *pict, enum PixelFormat pix_fmt, int width, int height, INT64 pts);
typedef FrameHookProcess *FrameHookProcessFn;
extern FrameHookProcess Process;
/* Function must be called 'Release' */
typedef void (FrameHookRelease)(void *ctx);
typedef FrameHookRelease *FrameHookReleaseFn;
extern FrameHookRelease Release;
extern int frame_hook_add(int argc, char *argv[]);
extern void frame_hook_process(struct AVPicture *pict, enum PixelFormat pix_fmt, int width, int height);
extern void frame_hook_release();
#endif