Make synth_filter a function pointer

Originally committed as revision 22827 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 9 insertions, 4 deletions

diff --git a/libavcodec/synth_filter.h b/libavcodec/synth_filter.h
index 701394ca0a..5b875fcad0 100644
--- a/libavcodec/synth_filter.h
+++ b/libavcodec/synth_filter.h
@@ -23,9 +23,14 @@
 
 #include "fft.h"
 
-void ff_synth_filter_float(FFTContext *imdct,
-                           float *synth_buf_ptr, int *synth_buf_offset,
-                           float synth_buf2[32], const float window[512],
-                           float out[32], const float in[32], float scale, float bias);
+typedef struct SynthFilterContext {
+    void (*synth_filter_float)(FFTContext *imdct,
+                               float *synth_buf_ptr, int *synth_buf_offset,
+                               float synth_buf2[32], const float window[512],
+                               float out[32], const float in[32],
+                               float scale, float bias);
+} SynthFilterContext;
+
+void ff_synth_filter_init(SynthFilterContext *c);
 
 #endif /* AVCODEC_SYNTH_FILTER_H */