# include "arm/aac.h"
#endif
+#include "libavutil/thread.h"
+
static VLC vlc_scalefactors;
static VLC vlc_spectral[11];
sizeof(ff_aac_spectral_codes[num][0]), \
size);
+static av_cold void aac_static_table_init(void)
+{
+ AAC_INIT_VLC_STATIC( 0, 304);
+ AAC_INIT_VLC_STATIC( 1, 270);
+ AAC_INIT_VLC_STATIC( 2, 550);
+ AAC_INIT_VLC_STATIC( 3, 300);
+ AAC_INIT_VLC_STATIC( 4, 328);
+ AAC_INIT_VLC_STATIC( 5, 294);
+ AAC_INIT_VLC_STATIC( 6, 306);
+ AAC_INIT_VLC_STATIC( 7, 268);
+ AAC_INIT_VLC_STATIC( 8, 510);
+ AAC_INIT_VLC_STATIC( 9, 366);
+ AAC_INIT_VLC_STATIC(10, 462);
+
+ ff_aac_sbr_init();
+
+ ff_aac_tableinit();
+
+ INIT_VLC_STATIC(&vlc_scalefactors, 7,
+ FF_ARRAY_ELEMS(ff_aac_scalefactor_code),
+ ff_aac_scalefactor_bits,
+ sizeof(ff_aac_scalefactor_bits[0]),
+ sizeof(ff_aac_scalefactor_bits[0]),
+ ff_aac_scalefactor_code,
+ sizeof(ff_aac_scalefactor_code[0]),
+ sizeof(ff_aac_scalefactor_code[0]),
+ 352);
+
+
+ // window initialization
+ ff_kbd_window_init(ff_aac_kbd_long_1024, 4.0, 1024);
+ ff_kbd_window_init(ff_aac_kbd_short_128, 6.0, 128);
+ ff_init_ff_sine_windows(10);
+ ff_init_ff_sine_windows( 9);
+ ff_init_ff_sine_windows( 7);
+
+ cbrt_tableinit();
+}
+
+static AVOnce aac_init = AV_ONCE_INIT;
+
static av_cold int aac_decode_init(AVCodecContext *avctx)
{
AACContext *ac = avctx->priv_data;
int ret;
+ ret = ff_thread_once(&aac_init, &aac_static_table_init);
+ if (ret != 0)
+ return AVERROR_UNKNOWN;
+
ac->avctx = avctx;
ac->oc[1].m4ac.sample_rate = avctx->sample_rate;
}
}
- AAC_INIT_VLC_STATIC( 0, 304);
- AAC_INIT_VLC_STATIC( 1, 270);
- AAC_INIT_VLC_STATIC( 2, 550);
- AAC_INIT_VLC_STATIC( 3, 300);
- AAC_INIT_VLC_STATIC( 4, 328);
- AAC_INIT_VLC_STATIC( 5, 294);
- AAC_INIT_VLC_STATIC( 6, 306);
- AAC_INIT_VLC_STATIC( 7, 268);
- AAC_INIT_VLC_STATIC( 8, 510);
- AAC_INIT_VLC_STATIC( 9, 366);
- AAC_INIT_VLC_STATIC(10, 462);
-
- ff_aac_sbr_init();
-
avpriv_float_dsp_init(&ac->fdsp, avctx->flags & AV_CODEC_FLAG_BITEXACT);
ac->random_state = 0x1f2e3d4c;
- ff_aac_tableinit();
-
- INIT_VLC_STATIC(&vlc_scalefactors, 7,
- FF_ARRAY_ELEMS(ff_aac_scalefactor_code),
- ff_aac_scalefactor_bits,
- sizeof(ff_aac_scalefactor_bits[0]),
- sizeof(ff_aac_scalefactor_bits[0]),
- ff_aac_scalefactor_code,
- sizeof(ff_aac_scalefactor_code[0]),
- sizeof(ff_aac_scalefactor_code[0]),
- 352);
-
ff_mdct_init(&ac->mdct, 11, 1, 1.0 / (32768.0 * 1024.0));
ff_mdct_init(&ac->mdct_ld, 10, 1, 1.0 / (32768.0 * 512.0));
ff_mdct_init(&ac->mdct_small, 8, 1, 1.0 / (32768.0 * 128.0));
if (ret < 0)
return ret;
- // window initialization
- ff_kbd_window_init(ff_aac_kbd_long_1024, 4.0, 1024);
- ff_kbd_window_init(ff_aac_kbd_short_128, 6.0, 128);
- ff_init_ff_sine_windows(10);
- ff_init_ff_sine_windows( 9);
- ff_init_ff_sine_windows( 7);
-
- cbrt_tableinit();
-
return 0;
}
avpriv_request_sample(ac->avctx, "SSR");
return AVERROR_PATCHWELCOME;
}
- // I see no textual basis in the spec for this occuring after SSR gain
- // control, but this is what both reference and real implmentations do
+ // I see no textual basis in the spec for this occurring after SSR gain
+ // control, but this is what both reference and real implementations do
if (tns->present && er_syntax)
if (decode_tns(ac, tns, gb, ics) < 0)
return AVERROR_INVALIDDATA;
struct LATMContext {
AACContext aac_ctx; ///< containing AACContext
- int initialized; ///< initilized after a valid extradata was seen
+ int initialized; ///< initialized after a valid extradata was seen
// parser data
int audio_mux_version_A; ///< LATM syntax version
AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE
},
.capabilities = AV_CODEC_CAP_CHANNEL_CONF | AV_CODEC_CAP_DR1,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
.channel_layouts = aac_channel_layout,
};
AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE
},
.capabilities = AV_CODEC_CAP_CHANNEL_CONF | AV_CODEC_CAP_DR1,
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
.channel_layouts = aac_channel_layout,
};