avcodec/atrac3plusdec: Use avpriv_float_dsp_alloc()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/atrac3plusdec.c

@@ -47,7 +47,7 @@
 
 typedef struct ATRAC3PContext {
     GetBitContext gb;
-    AVFloatDSPContext fdsp;
+    AVFloatDSPContext *fdsp;
 
     DECLARE_ALIGNED(32, float, samples)[2][ATRAC3P_FRAME_SAMPLES];  ///< quantized MDCT spectrum
     DECLARE_ALIGNED(32, float, mdct_buf)[2][ATRAC3P_FRAME_SAMPLES]; ///< output of the IMDCT
@@ -67,7 +67,10 @@ typedef struct ATRAC3PContext {
 
 static av_cold int atrac3p_decode_close(AVCodecContext *avctx)
 {
-    av_freep(&((ATRAC3PContext *)(avctx->priv_data))->ch_units);
+    ATRAC3PContext *ctx = avctx->priv_data;
+
+    av_freep(&ctx->ch_units);
+    av_freep(&ctx->fdsp);
 
     return 0;
 }
@@ -150,8 +153,6 @@ static av_cold int atrac3p_decode_init(AVCodecContext *avctx)
 
     ff_atrac3p_init_vlcs();
 
-    avpriv_float_dsp_init(&ctx->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
-
     /* initialize IPQF */
     ff_mdct_init(&ctx->ipqf_dct_ctx, 5, 1, 32.0 / 32768.0);
 
@@ -167,8 +168,9 @@ static av_cold int atrac3p_decode_init(AVCodecContext *avctx)
     ctx->my_channel_layout = avctx->channel_layout;
 
     ctx->ch_units = av_mallocz_array(ctx->num_channel_blocks, sizeof(*ctx->ch_units));
+    ctx->fdsp = avpriv_float_dsp_alloc(avctx->flags & CODEC_FLAG_BITEXACT);
 
-    if (!ctx->ch_units) {
+    if (!ctx->ch_units || !ctx->fdsp) {
         atrac3p_decode_close(avctx);
         return AVERROR(ENOMEM);
     }
@@ -265,7 +267,7 @@ static void reconstruct_frame(ATRAC3PContext *ctx, Atrac3pChanUnitCtx *ch_unit,
     for (ch = 0; ch < num_channels; ch++) {
         for (sb = 0; sb < ch_unit->num_subbands; sb++) {
             /* inverse transform and windowing */
-            ff_atrac3p_imdct(&ctx->fdsp, &ctx->mdct_ctx,
+            ff_atrac3p_imdct(ctx->fdsp, &ctx->mdct_ctx,
                              &ctx->samples[ch][sb * ATRAC3P_SUBBAND_SAMPLES],
                              &ctx->mdct_buf[ch][sb * ATRAC3P_SUBBAND_SAMPLES],
                              (ch_unit->channels[ch].wnd_shape_prev[sb] << 1) +
@@ -299,7 +301,7 @@ static void reconstruct_frame(ATRAC3PContext *ctx, Atrac3pChanUnitCtx *ch_unit,
             for (sb = 0; sb < ch_unit->num_subbands; sb++)
                 if (ch_unit->channels[ch].tones_info[sb].num_wavs ||
                     ch_unit->channels[ch].tones_info_prev[sb].num_wavs) {
-                    ff_atrac3p_generate_tones(ch_unit, &ctx->fdsp, ch, sb,
+                    ff_atrac3p_generate_tones(ch_unit, ctx->fdsp, ch, sb,
                                               &ctx->time_buf[ch][sb * 128]);
                 }
         }