yading@11: /* yading@11: * Copyright (c) 2006 Michael Niedermayer yading@11: * Copyright (c) 2012 Justin Ruggles yading@11: * yading@11: * This file is part of Libav. yading@11: * yading@11: * Libav is free software; you can redistribute it and/or yading@11: * modify it under the terms of the GNU Lesser General Public yading@11: * License as published by the Free Software Foundation; either yading@11: * version 2.1 of the License, or (at your option) any later version. yading@11: * yading@11: * Libav is distributed in the hope that it will be useful, yading@11: * but WITHOUT ANY WARRANTY; without even the implied warranty of yading@11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU yading@11: * Lesser General Public License for more details. yading@11: * yading@11: * You should have received a copy of the GNU Lesser General Public yading@11: * License along with Libav; if not, write to the Free Software yading@11: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA yading@11: */ yading@11: yading@11: #include yading@11: yading@11: #include "config.h" yading@11: #include "libavutil/common.h" yading@11: #include "libavutil/libm.h" yading@11: #include "libavutil/log.h" yading@11: #include "libavutil/mem.h" yading@11: #include "libavutil/samplefmt.h" yading@11: #include "audio_convert.h" yading@11: #include "audio_data.h" yading@11: #include "dither.h" yading@11: yading@11: enum ConvFuncType { yading@11: CONV_FUNC_TYPE_FLAT, yading@11: CONV_FUNC_TYPE_INTERLEAVE, yading@11: CONV_FUNC_TYPE_DEINTERLEAVE, yading@11: }; yading@11: yading@11: typedef void (conv_func_flat)(uint8_t *out, const uint8_t *in, int len); yading@11: yading@11: typedef void (conv_func_interleave)(uint8_t *out, uint8_t *const *in, yading@11: int len, int channels); yading@11: yading@11: typedef void (conv_func_deinterleave)(uint8_t **out, const uint8_t *in, int len, yading@11: int channels); yading@11: yading@11: struct AudioConvert { yading@11: AVAudioResampleContext *avr; yading@11: DitherContext *dc; yading@11: enum AVSampleFormat in_fmt; yading@11: enum AVSampleFormat out_fmt; yading@11: int apply_map; yading@11: int channels; yading@11: int planes; yading@11: int ptr_align; yading@11: int samples_align; yading@11: int has_optimized_func; yading@11: const char *func_descr; yading@11: const char *func_descr_generic; yading@11: enum ConvFuncType func_type; yading@11: conv_func_flat *conv_flat; yading@11: conv_func_flat *conv_flat_generic; yading@11: conv_func_interleave *conv_interleave; yading@11: conv_func_interleave *conv_interleave_generic; yading@11: conv_func_deinterleave *conv_deinterleave; yading@11: conv_func_deinterleave *conv_deinterleave_generic; yading@11: }; yading@11: yading@11: void ff_audio_convert_set_func(AudioConvert *ac, enum AVSampleFormat out_fmt, yading@11: enum AVSampleFormat in_fmt, int channels, yading@11: int ptr_align, int samples_align, yading@11: const char *descr, void *conv) yading@11: { yading@11: int found = 0; yading@11: yading@11: switch (ac->func_type) { yading@11: case CONV_FUNC_TYPE_FLAT: yading@11: if (av_get_packed_sample_fmt(ac->in_fmt) == in_fmt && yading@11: av_get_packed_sample_fmt(ac->out_fmt) == out_fmt) { yading@11: ac->conv_flat = conv; yading@11: ac->func_descr = descr; yading@11: ac->ptr_align = ptr_align; yading@11: ac->samples_align = samples_align; yading@11: if (ptr_align == 1 && samples_align == 1) { yading@11: ac->conv_flat_generic = conv; yading@11: ac->func_descr_generic = descr; yading@11: } else { yading@11: ac->has_optimized_func = 1; yading@11: } yading@11: found = 1; yading@11: } yading@11: break; yading@11: case CONV_FUNC_TYPE_INTERLEAVE: yading@11: if (ac->in_fmt == in_fmt && ac->out_fmt == out_fmt && yading@11: (!channels || ac->channels == channels)) { yading@11: ac->conv_interleave = conv; yading@11: ac->func_descr = descr; yading@11: ac->ptr_align = ptr_align; yading@11: ac->samples_align = samples_align; yading@11: if (ptr_align == 1 && samples_align == 1) { yading@11: ac->conv_interleave_generic = conv; yading@11: ac->func_descr_generic = descr; yading@11: } else { yading@11: ac->has_optimized_func = 1; yading@11: } yading@11: found = 1; yading@11: } yading@11: break; yading@11: case CONV_FUNC_TYPE_DEINTERLEAVE: yading@11: if (ac->in_fmt == in_fmt && ac->out_fmt == out_fmt && yading@11: (!channels || ac->channels == channels)) { yading@11: ac->conv_deinterleave = conv; yading@11: ac->func_descr = descr; yading@11: ac->ptr_align = ptr_align; yading@11: ac->samples_align = samples_align; yading@11: if (ptr_align == 1 && samples_align == 1) { yading@11: ac->conv_deinterleave_generic = conv; yading@11: ac->func_descr_generic = descr; yading@11: } else { yading@11: ac->has_optimized_func = 1; yading@11: } yading@11: found = 1; yading@11: } yading@11: break; yading@11: } yading@11: if (found) { yading@11: av_log(ac->avr, AV_LOG_DEBUG, "audio_convert: found function: %-4s " yading@11: "to %-4s (%s)\n", av_get_sample_fmt_name(ac->in_fmt), yading@11: av_get_sample_fmt_name(ac->out_fmt), descr); yading@11: } yading@11: } yading@11: yading@11: #define CONV_FUNC_NAME(dst_fmt, src_fmt) conv_ ## src_fmt ## _to_ ## dst_fmt yading@11: yading@11: #define CONV_LOOP(otype, expr) \ yading@11: do { \ yading@11: *(otype *)po = expr; \ yading@11: pi += is; \ yading@11: po += os; \ yading@11: } while (po < end); \ yading@11: yading@11: #define CONV_FUNC_FLAT(ofmt, otype, ifmt, itype, expr) \ yading@11: static void CONV_FUNC_NAME(ofmt, ifmt)(uint8_t *out, const uint8_t *in, \ yading@11: int len) \ yading@11: { \ yading@11: int is = sizeof(itype); \ yading@11: int os = sizeof(otype); \ yading@11: const uint8_t *pi = in; \ yading@11: uint8_t *po = out; \ yading@11: uint8_t *end = out + os * len; \ yading@11: CONV_LOOP(otype, expr) \ yading@11: } yading@11: yading@11: #define CONV_FUNC_INTERLEAVE(ofmt, otype, ifmt, itype, expr) \ yading@11: static void CONV_FUNC_NAME(ofmt, ifmt)(uint8_t *out, const uint8_t **in, \ yading@11: int len, int channels) \ yading@11: { \ yading@11: int ch; \ yading@11: int out_bps = sizeof(otype); \ yading@11: int is = sizeof(itype); \ yading@11: int os = channels * out_bps; \ yading@11: for (ch = 0; ch < channels; ch++) { \ yading@11: const uint8_t *pi = in[ch]; \ yading@11: uint8_t *po = out + ch * out_bps; \ yading@11: uint8_t *end = po + os * len; \ yading@11: CONV_LOOP(otype, expr) \ yading@11: } \ yading@11: } yading@11: yading@11: #define CONV_FUNC_DEINTERLEAVE(ofmt, otype, ifmt, itype, expr) \ yading@11: static void CONV_FUNC_NAME(ofmt, ifmt)(uint8_t **out, const uint8_t *in, \ yading@11: int len, int channels) \ yading@11: { \ yading@11: int ch; \ yading@11: int in_bps = sizeof(itype); \ yading@11: int is = channels * in_bps; \ yading@11: int os = sizeof(otype); \ yading@11: for (ch = 0; ch < channels; ch++) { \ yading@11: const uint8_t *pi = in + ch * in_bps; \ yading@11: uint8_t *po = out[ch]; \ yading@11: uint8_t *end = po + os * len; \ yading@11: CONV_LOOP(otype, expr) \ yading@11: } \ yading@11: } yading@11: yading@11: #define CONV_FUNC_GROUP(ofmt, otype, ifmt, itype, expr) \ yading@11: CONV_FUNC_FLAT( ofmt, otype, ifmt, itype, expr) \ yading@11: CONV_FUNC_INTERLEAVE( ofmt, otype, ifmt ## P, itype, expr) \ yading@11: CONV_FUNC_DEINTERLEAVE(ofmt ## P, otype, ifmt, itype, expr) yading@11: yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_U8, uint8_t, *(const uint8_t *)pi) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_U8, uint8_t, (*(const uint8_t *)pi - 0x80) << 8) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_U8, uint8_t, (*(const uint8_t *)pi - 0x80) << 24) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t, (*(const uint8_t *)pi - 0x80) * (1.0f / (1 << 7))) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t, (*(const uint8_t *)pi - 0x80) * (1.0 / (1 << 7))) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t, (*(const int16_t *)pi >> 8) + 0x80) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *)pi) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *)pi << 16) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *)pi * (1.0f / (1 << 15))) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *)pi * (1.0 / (1 << 15))) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t, (*(const int32_t *)pi >> 24) + 0x80) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *)pi >> 16) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *)pi) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *)pi * (1.0f / (1U << 31))) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *)pi * (1.0 / (1U << 31))) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8( lrintf(*(const float *)pi * (1 << 7)) + 0x80)) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16( lrintf(*(const float *)pi * (1 << 15)))) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *)pi * (1U << 31)))) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_FLT, float, *(const float *)pi) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_FLT, float, *(const float *)pi) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8( lrint(*(const double *)pi * (1 << 7)) + 0x80)) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16( lrint(*(const double *)pi * (1 << 15)))) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *)pi * (1U << 31)))) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_DBL, double, *(const double *)pi) yading@11: CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_DBL, double, *(const double *)pi) yading@11: yading@11: #define SET_CONV_FUNC_GROUP(ofmt, ifmt) \ yading@11: ff_audio_convert_set_func(ac, ofmt, ifmt, 0, 1, 1, "C", CONV_FUNC_NAME(ofmt, ifmt)); \ yading@11: ff_audio_convert_set_func(ac, ofmt ## P, ifmt, 0, 1, 1, "C", CONV_FUNC_NAME(ofmt ## P, ifmt)); \ yading@11: ff_audio_convert_set_func(ac, ofmt, ifmt ## P, 0, 1, 1, "C", CONV_FUNC_NAME(ofmt, ifmt ## P)); yading@11: yading@11: static void set_generic_function(AudioConvert *ac) yading@11: { yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL) yading@11: SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL) yading@11: } yading@11: yading@11: void ff_audio_convert_free(AudioConvert **ac) yading@11: { yading@11: if (!*ac) yading@11: return; yading@11: ff_dither_free(&(*ac)->dc); yading@11: av_freep(ac); yading@11: } yading@11: yading@11: AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, yading@11: enum AVSampleFormat out_fmt, yading@11: enum AVSampleFormat in_fmt, yading@11: int channels, int sample_rate, yading@11: int apply_map) yading@11: { yading@11: AudioConvert *ac; yading@11: int in_planar, out_planar; yading@11: yading@11: ac = av_mallocz(sizeof(*ac)); yading@11: if (!ac) yading@11: return NULL; yading@11: yading@11: ac->avr = avr; yading@11: ac->out_fmt = out_fmt; yading@11: ac->in_fmt = in_fmt; yading@11: ac->channels = channels; yading@11: ac->apply_map = apply_map; yading@11: yading@11: if (avr->dither_method != AV_RESAMPLE_DITHER_NONE && yading@11: av_get_packed_sample_fmt(out_fmt) == AV_SAMPLE_FMT_S16 && yading@11: av_get_bytes_per_sample(in_fmt) > 2) { yading@11: ac->dc = ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, yading@11: apply_map); yading@11: if (!ac->dc) { yading@11: av_free(ac); yading@11: return NULL; yading@11: } yading@11: return ac; yading@11: } yading@11: yading@11: in_planar = av_sample_fmt_is_planar(in_fmt); yading@11: out_planar = av_sample_fmt_is_planar(out_fmt); yading@11: yading@11: if (in_planar == out_planar) { yading@11: ac->func_type = CONV_FUNC_TYPE_FLAT; yading@11: ac->planes = in_planar ? ac->channels : 1; yading@11: } else if (in_planar) yading@11: ac->func_type = CONV_FUNC_TYPE_INTERLEAVE; yading@11: else yading@11: ac->func_type = CONV_FUNC_TYPE_DEINTERLEAVE; yading@11: yading@11: set_generic_function(ac); yading@11: yading@11: if (ARCH_ARM) yading@11: ff_audio_convert_init_arm(ac); yading@11: if (ARCH_X86) yading@11: ff_audio_convert_init_x86(ac); yading@11: yading@11: return ac; yading@11: } yading@11: yading@11: int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) yading@11: { yading@11: int use_generic = 1; yading@11: int len = in->nb_samples; yading@11: int p; yading@11: yading@11: if (ac->dc) { yading@11: /* dithered conversion */ yading@11: av_dlog(ac->avr, "%d samples - audio_convert: %s to %s (dithered)\n", yading@11: len, av_get_sample_fmt_name(ac->in_fmt), yading@11: av_get_sample_fmt_name(ac->out_fmt)); yading@11: yading@11: return ff_convert_dither(ac->dc, out, in); yading@11: } yading@11: yading@11: /* determine whether to use the optimized function based on pointer and yading@11: samples alignment in both the input and output */ yading@11: if (ac->has_optimized_func) { yading@11: int ptr_align = FFMIN(in->ptr_align, out->ptr_align); yading@11: int samples_align = FFMIN(in->samples_align, out->samples_align); yading@11: int aligned_len = FFALIGN(len, ac->samples_align); yading@11: if (!(ptr_align % ac->ptr_align) && samples_align >= aligned_len) { yading@11: len = aligned_len; yading@11: use_generic = 0; yading@11: } yading@11: } yading@11: av_dlog(ac->avr, "%d samples - audio_convert: %s to %s (%s)\n", len, yading@11: av_get_sample_fmt_name(ac->in_fmt), yading@11: av_get_sample_fmt_name(ac->out_fmt), yading@11: use_generic ? ac->func_descr_generic : ac->func_descr); yading@11: yading@11: if (ac->apply_map) { yading@11: ChannelMapInfo *map = &ac->avr->ch_map_info; yading@11: yading@11: if (!av_sample_fmt_is_planar(ac->out_fmt)) { yading@11: av_log(ac->avr, AV_LOG_ERROR, "cannot remap packed format during conversion\n"); yading@11: return AVERROR(EINVAL); yading@11: } yading@11: yading@11: if (map->do_remap) { yading@11: if (av_sample_fmt_is_planar(ac->in_fmt)) { yading@11: conv_func_flat *convert = use_generic ? ac->conv_flat_generic : yading@11: ac->conv_flat; yading@11: yading@11: for (p = 0; p < ac->planes; p++) yading@11: if (map->channel_map[p] >= 0) yading@11: convert(out->data[p], in->data[map->channel_map[p]], len); yading@11: } else { yading@11: uint8_t *data[AVRESAMPLE_MAX_CHANNELS]; yading@11: conv_func_deinterleave *convert = use_generic ? yading@11: ac->conv_deinterleave_generic : yading@11: ac->conv_deinterleave; yading@11: yading@11: for (p = 0; p < ac->channels; p++) yading@11: data[map->input_map[p]] = out->data[p]; yading@11: yading@11: convert(data, in->data[0], len, ac->channels); yading@11: } yading@11: } yading@11: if (map->do_copy || map->do_zero) { yading@11: for (p = 0; p < ac->planes; p++) { yading@11: if (map->channel_copy[p]) yading@11: memcpy(out->data[p], out->data[map->channel_copy[p]], yading@11: len * out->stride); yading@11: else if (map->channel_zero[p]) yading@11: av_samples_set_silence(&out->data[p], 0, len, 1, ac->out_fmt); yading@11: } yading@11: } yading@11: } else { yading@11: switch (ac->func_type) { yading@11: case CONV_FUNC_TYPE_FLAT: { yading@11: if (!in->is_planar) yading@11: len *= in->channels; yading@11: if (use_generic) { yading@11: for (p = 0; p < ac->planes; p++) yading@11: ac->conv_flat_generic(out->data[p], in->data[p], len); yading@11: } else { yading@11: for (p = 0; p < ac->planes; p++) yading@11: ac->conv_flat(out->data[p], in->data[p], len); yading@11: } yading@11: break; yading@11: } yading@11: case CONV_FUNC_TYPE_INTERLEAVE: yading@11: if (use_generic) yading@11: ac->conv_interleave_generic(out->data[0], in->data, len, yading@11: ac->channels); yading@11: else yading@11: ac->conv_interleave(out->data[0], in->data, len, ac->channels); yading@11: break; yading@11: case CONV_FUNC_TYPE_DEINTERLEAVE: yading@11: if (use_generic) yading@11: ac->conv_deinterleave_generic(out->data, in->data[0], len, yading@11: ac->channels); yading@11: else yading@11: ac->conv_deinterleave(out->data, in->data[0], len, yading@11: ac->channels); yading@11: break; yading@11: } yading@11: } yading@11: yading@11: out->nb_samples = in->nb_samples; yading@11: return 0; yading@11: }