[FFmpeg-devel] [PATCH 06/16] avcodec/ra288: Avoid indirection when calling float dsp function

[Andreas Rheinhardt]

Do this by only keeping the only function pointer from the
AVFloatDSPContext that is needed lateron. This also allows to remove the
decoder's close function.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>
---
 libavcodec/ra288.c | 24 +++++++++---------------
 1 file changed, 9 insertions(+), 15 deletions(-)

diff --git a/libavcodec/ra288.c b/libavcodec/ra288.c
index aa4bd5d90f..8df17891b1 100644
--- a/libavcodec/ra288.c
+++ b/libavcodec/ra288.c
@@ -39,7 +39,8 @@
 #define RA288_BLOCKS_PER_FRAME 32
 
 typedef struct RA288Context {
-    AVFloatDSPContext *fdsp;
+    void (*vector_fmul)(float *dst, const float *src0, const float *src1,
+                        int len);
     DECLARE_ALIGNED(32, float,   sp_lpc)[FFALIGN(36, 16)];   ///< LPC coefficients for speech data (spec: A)
     DECLARE_ALIGNED(32, float, gain_lpc)[FFALIGN(10, 16)];   ///< LPC coefficients for gain        (spec: GB)
 
@@ -60,18 +61,10 @@ typedef struct RA288Context {
     float gain_rec[11];
 } RA288Context;
 
-static av_cold int ra288_decode_close(AVCodecContext *avctx)
-{
-    RA288Context *ractx = avctx->priv_data;
-
-    av_freep(&ractx->fdsp);
-
-    return 0;
-}
-
 static av_cold int ra288_decode_init(AVCodecContext *avctx)
 {
     RA288Context *ractx = avctx->priv_data;
+    AVFloatDSPContext *fdsp;
 
     avctx->channels       = 1;
     avctx->channel_layout = AV_CH_LAYOUT_MONO;
@@ -82,9 +75,11 @@ static av_cold int ra288_decode_init(AVCodecContext *avctx)
         return AVERROR_PATCHWELCOME;
     }
 
-    ractx->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
-    if (!ractx->fdsp)
+    fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
+    if (!fdsp)
         return AVERROR(ENOMEM);
+    ractx->vector_fmul = fdsp->vector_fmul;
+    av_free(fdsp);
 
     return 0;
 }
@@ -158,7 +153,7 @@ static void do_hybrid_window(RA288Context *ractx,
 
     av_assert2(order>=0);
 
-    ractx->fdsp->vector_fmul(work, window, hist, FFALIGN(order + n + non_rec, 16));
+    ractx->vector_fmul(work, window, hist, FFALIGN(order + n + non_rec, 16));
 
     convolve(buffer1, work + order    , n      , order);
     convolve(buffer2, work + order + n, non_rec, order);
@@ -185,7 +180,7 @@ static void backward_filter(RA288Context *ractx,
     do_hybrid_window(ractx, order, n, non_rec, temp, hist, rec, window);
 
     if (!compute_lpc_coefs(temp, order, lpc, 0, 1, 1))
-        ractx->fdsp->vector_fmul(lpc, lpc, tab, FFALIGN(order, 16));
+        ractx->vector_fmul(lpc, lpc, tab, FFALIGN(order, 16));
 
     memmove(hist, hist + n, move_size*sizeof(*hist));
 }
@@ -249,6 +244,5 @@ AVCodec ff_ra_288_decoder = {
     .priv_data_size = sizeof(RA288Context),
     .init           = ra288_decode_init,
     .decode         = ra288_decode_frame,
-    .close          = ra288_decode_close,
     .capabilities   = AV_CODEC_CAP_DR1,
 };
-- 
2.25.1