#include "libavutil/crc.h"
#include "libavutil/downmix_info.h"
#include "libavutil/opt.h"
+#include "libavutil/thread.h"
#include "bswapdsp.h"
#include "internal.h"
#include "aac_ac3_parser.h"
*/
static av_cold int ac3_decode_init(AVCodecContext *avctx)
{
+ static AVOnce init_static_once = AV_ONCE_INIT;
AC3DecodeContext *s = avctx->priv_data;
- int i;
+ int i, ret;
s->avctx = avctx;
- ac3_tables_init();
- ff_mdct_init(&s->imdct_256, 8, 1, 1.0);
- ff_mdct_init(&s->imdct_512, 9, 1, 1.0);
+ if ((ret = ff_mdct_init(&s->imdct_256, 8, 1, 1.0)) < 0 ||
+ (ret = ff_mdct_init(&s->imdct_512, 9, 1, 1.0)) < 0)
+ return ret;
AC3_RENAME(ff_kbd_window_init)(s->window, 5.0, 256);
ff_bswapdsp_init(&s->bdsp);
#if (USE_FIXED)
s->fdsp = avpriv_alloc_fixed_dsp(avctx->flags & AV_CODEC_FLAG_BITEXACT);
#else
- s->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
ff_fmt_convert_init(&s->fmt_conv, avctx);
+ s->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT);
#endif
+ if (!s->fdsp)
+ return AVERROR(ENOMEM);
ff_ac3dsp_init(&s->ac3dsp, avctx->flags & AV_CODEC_FLAG_BITEXACT);
av_lfg_init(&s->dith_state, 0);
s->dlyptr[i] = s->delay[i];
}
+ ff_thread_once(&init_static_once, ac3_tables_init);
+
return 0;
}