---
libavcodec/dcadata.c | 318 ---------------------------------------------------
libavcodec/dcadata.h | 10 --
2 files changed, 328 deletions(-)
diff --git a/libavcodec/dcadata.c b/libavcodec/dcadata.c
index af2c75b..0d0c218 100644
--- a/libavcodec/dcadata.c
+++ b/libavcodec/dcadata.c
@@ -22,7 +22,6 @@
#include <stdint.h>
-#include "libavutil/channel_layout.h"
#include "libavutil/mem.h"
#include "dca.h"
@@ -7509,76 +7508,6 @@ DECLARE_ALIGNED(16, const float,
ff_dca_lfe_fir_128)[256] = {
};
#undef SCALE
-
-#define SCALE(c) ((float)(c) / (256.0f * 32768.0f * 8388608.0f))
-DECLARE_ALIGNED(16, const float, ff_dca_lfe_xll_fir_64)[256] = {
- SCALE( 6103), SCALE( 52170), SCALE(-558064), SCALE(1592440),
- SCALE(6290049), SCALE(1502534), SCALE(-546669), SCALE( 53047),
- SCALE( 1930), SCALE( 51089), SCALE(-568920), SCALE(1683709),
- SCALE(6286575), SCALE(1414057), SCALE(-534782), SCALE( 53729),
- SCALE( 2228), SCALE( 49794), SCALE(-579194), SCALE(1776276),
- SCALE(6279634), SCALE(1327070), SCALE(-522445), SCALE( 54228),
- SCALE( 2552), SCALE( 48275), SCALE(-588839), SCALE(1870070),
- SCALE(6269231), SCALE(1241632), SCALE(-509702), SCALE( 54550),
- SCALE( 2904), SCALE( 46523), SCALE(-597808), SCALE(1965017),
- SCALE(6255380), SCALE(1157798), SCALE(-496595), SCALE( 54708),
- SCALE( 3287), SCALE( 44529), SCALE(-606054), SCALE(2061044),
- SCALE(6238099), SCALE(1075621), SCALE(-483164), SCALE( 54710),
- SCALE( 3704), SCALE( 42282), SCALE(-613529), SCALE(2158071),
- SCALE(6217408), SCALE( 995149), SCALE(-469451), SCALE( 54566),
- SCALE( 4152), SCALE( 39774), SCALE(-620186), SCALE(2256019),
- SCALE(6193332), SCALE( 916430), SCALE(-455494), SCALE( 54285),
- SCALE( 4631), SCALE( 36995), SCALE(-625976), SCALE(2354805),
- SCALE(6165900), SCALE( 839507), SCALE(-441330), SCALE( 53876),
- SCALE( 5139), SCALE( 33937), SCALE(-630850), SCALE(2454343),
- SCALE(6135146), SCALE( 764419), SCALE(-426998), SCALE( 53348),
- SCALE( 5682), SCALE( 30591), SCALE(-634759), SCALE(2554547),
- SCALE(6101107), SCALE( 691203), SCALE(-412531), SCALE( 52711),
- SCALE( 6264), SCALE( 26948), SCALE(-637655), SCALE(2655326),
- SCALE(6063824), SCALE( 619894), SCALE(-397966), SCALE( 51972),
- SCALE( 6886), SCALE( 23001), SCALE(-639488), SCALE(2756591),
- SCALE(6023343), SCALE( 550521), SCALE(-383335), SCALE( 51140),
- SCALE( 7531), SCALE( 18741), SCALE(-640210), SCALE(2858248),
- SCALE(5979711), SCALE( 483113), SCALE(-368671), SCALE( 50224),
- SCALE( 8230), SCALE( 14162), SCALE(-639772), SCALE(2960201),
- SCALE(5932981), SCALE( 417692), SCALE(-354003), SCALE( 49231),
- SCALE( 8959), SCALE( 9257), SCALE(-638125), SCALE(3062355),
- SCALE(5883210), SCALE( 354281), SCALE(-339362), SCALE( 48168),
- SCALE( 9727), SCALE( 4018), SCALE(-635222), SCALE(3164612),
- SCALE(5830457), SCALE( 292897), SCALE(-324777), SCALE( 47044),
- SCALE( 10535), SCALE( -1558), SCALE(-631014), SCALE(3266872),
- SCALE(5774785), SCALE( 233555), SCALE(-310273), SCALE( 45866),
- SCALE( 11381), SCALE( -7480), SCALE(-625455), SCALE(3369035),
- SCALE(5716260), SCALE( 176267), SCALE(-295877), SCALE( 44640),
- SCALE( 12267), SCALE( -13750), SCALE(-618499), SCALE(3471000),
- SCALE(5654952), SCALE( 121042), SCALE(-281613), SCALE( 43373),
- SCALE( 13190), SCALE( -20372), SCALE(-610098), SCALE(3572664),
- SCALE(5590933), SCALE( 67886), SCALE(-267505), SCALE( 42072),
- SCALE( 14152), SCALE( -27352), SCALE(-600209), SCALE(3673924),
- SCALE(5524280), SCALE( 16800), SCALE(-253574), SCALE( 40743),
- SCALE( 15153), SCALE( -34691), SCALE(-588788), SCALE(3774676),
- SCALE(5455069), SCALE( -32214), SCALE(-239840), SCALE( 39391),
- SCALE( 16192), SCALE( -42390), SCALE(-575791), SCALE(3874816),
- SCALE(5383383), SCALE( -79159), SCALE(-226323), SCALE( 38022),
- SCALE( 17267), SCALE( -50453), SCALE(-561178), SCALE(3974239),
- SCALE(5309305), SCALE(-124041), SCALE(-213041), SCALE( 36642),
- SCALE( 18377), SCALE( -58879), SCALE(-544906), SCALE(4072841),
- SCALE(5232922), SCALE(-166869), SCALE(-200010), SCALE( 35256),
- SCALE( 19525), SCALE( -67667), SCALE(-526937), SCALE(4170517),
- SCALE(5154321), SCALE(-207653), SCALE(-187246), SCALE( 33866),
- SCALE( 20704), SCALE( -76817), SCALE(-507233), SCALE(4267162),
- SCALE(5073593), SCALE(-246406), SCALE(-174764), SCALE( 32480),
- SCALE( 21915), SCALE( -86327), SCALE(-485757), SCALE(4362672),
- SCALE(4990831), SCALE(-283146), SCALE(-162575), SCALE( 31101),
- SCALE( 23157), SCALE( -96193), SCALE(-462476), SCALE(4456942),
- SCALE(4906129), SCALE(-317890), SCALE(-150692), SCALE( 29732),
- SCALE( 24426), SCALE(-106412), SCALE(-437356), SCALE(4549871),
- SCALE(4819584), SCALE(-350658), SCALE(-139125), SCALE( 28376),
- SCALE( 25721), SCALE(-116977), SCALE(-410365), SCALE(4641355),
- SCALE(4731293), SCALE(-381475), SCALE(-127884), SCALE( 27038),
-};
-#undef SCALE
-
DECLARE_ALIGNED(16, const float, ff_dca_fir_64bands)[1024] = {
/* Bank 0 */
-7.1279389866041690e-8, -7.0950903150874990e-8,
@@ -8178,220 +8107,11 @@ const uint32_t
ff_dca_inv_dmixtable[FF_DCA_INV_DMIXTABLE_SIZE] = {
65536,
};
-const float ff_dca_default_coeffs[10][6][2] = {
- { { 0.707107, 0.707107 }, { 0.000000, 0.000000 },
}, // A
[LFE]
- { { 1.000000, 0.000000 }, { 0.000000, 1.000000 }, { 0.000000, 0.000000 },
}, // A
+ B (dual mono) [LFE]
- { { 1.000000, 0.000000 }, { 0.000000, 1.000000 }, { 0.000000, 0.000000 },
}, // L
+ R (stereo) [LFE]
- { { 1.000000, 0.000000 }, { 0.000000, 1.000000 }, { 0.000000, 0.000000 },
}, //
(L+R) + (L-R) (sum-difference) [LFE]
- { { 1.000000, 0.000000 }, { 0.000000, 1.000000 }, { 0.000000, 0.000000 },
}, // LT
+ RT (left and right total) [LFE]
- { { 0.501187, 0.501187 }, { 0.707107, 0.000000 }, { 0.000000, 0.707107 },
{ 0.000000, 0.000000 }, }, // C
+ L + R [LFE]
- { { 0.707107, 0.000000 }, { 0.000000, 0.707107 }, { 0.501187, 0.501187 },
{ 0.000000, 0.000000 }, }, // L
+ R + S [LFE]
- { { 0.501187, 0.501187 }, { 0.707107, 0.000000 }, { 0.000000, 0.707107 },
{ 0.501187, 0.501187 }, { 0.000000, 0.000000 }, }, // C
+ L + R + S [LFE]
- { { 0.707107, 0.000000 }, { 0.000000, 0.707107 }, { 0.501187, 0.000000 },
{ 0.000000, 0.501187 }, { 0.000000, 0.000000 }, }, // L
+ R + SL + SR [LFE]
- { { 0.501187, 0.501187 }, { 0.707107, 0.000000 }, { 0.000000, 0.707107 },
{ 0.501187, 0.000000 }, { 0.000000, 0.501187 }, { 0.000000, 0.000000 }, }, // C
+ L + R + SL + SR [LFE]
-};
-
const int32_t ff_dca_sampling_freqs[16] = {
8000, 16000, 32000, 64000, 128000, 22050, 44100, 88200,
176400, 352800, 12000, 24000, 48000, 96000, 192000, 384000,
};
-/* downmix coeffs
- *
- * TABLE 9
- * ______________________________________
- * Down-mix coefficients for 8-channel source
- * audio (5 + 3 format)
- * lt
- * cen- rt lt ctr rt
- * lt ter ctr center
- * rt srd srd srd
- * ______________________________________
- * 1 0.71 0.74 1.0 0.71 0.71 0.58 0.58 0.58
- * 2 left 1.0 0.89 0.71 0.46 0.71 0.50
- * rt 0.45 0.71 0.89 1.0 0.50 0.71
- * 3 lt 1.0 0.89 0.71 0.45
- * rt 0.45 0.71 0.89 1.0
- * srd 0.71 0.71 0.71
- * 4 lt 1.0 0.89 0.71 0.45
- * rt 0.45 0.71 0.89 1.0
- * lt srd 1.0 0.71
- * rt srd 0.71 0.71
- * 4 lt 1.0 0.5
- * ctr 0.87 1.0 0.87
- * rt 0.5 1.0
- * srd 0.71 0.71 0.71
- * 5 lt 1.0 0.5
- * ctr 0.87 1.0 0.87
- * rt 0.5 1.0
- * lt srd 1.0 0.71
- * rt srd 0.71 1.0
- * 6 lt 1.0 0.5
- * lt ctr 0.87 0.71
- * rt ctr 0.71 0.87
- * rt 0.5 1.0
- * lt srd 1.0 0.71
- * rt srd 0.71 1.0
- * 6 lt 1.0 0.5
- * ctr 0.86 1.0 0.86
- * rt 0.5 1.0
- * lt srd 1.0
- * ctr srd 1.0
- * rt srd 1.0
- * 7 lt 1.0
- * lt ctr 1.0
- * ctr 1.0
- * rt ctr 1.0
- * rt 1.0
- * lt srd 1.0 0.71
- * rt srd 0.71 1.0
- * 7 lt 1.0 0.5
- * lt ctr 0.87 0.71
- * rt ctr 0.71 0.87
- * rt 0.5 1.0
- * lt srd 1.0
- * ctr srd 1.0
- * rt srd 1.0
- * 8 lt 1.0 0.5
- * lt ctr 0.87 0.71
- * rt ctr 0.71 0.87
- * rt 0.5 1.0
- * lt 1 srd 0.87 0.35
- * lt 2 srd 0.5 0.61
- * rt 2 srd 0.61 0.50
- * rt 2 srd 0.35 0.87
- *
- * Generation of Lt Rt
- *
- * In the case when the playback system has analog or digital surround
- * multi-channel capability, a down matrix from 5, 4, or 3 channel to
- * Lt Rt may be desirable. In the case when the number of decoded audio
- * channels exceeds 5, 4 or 3 respectively a first stage down mix to 5,
- * 4 or 3 chs should be used as described above.
- *
- * The down matrixing equations for 5-channel source audio to a
- * two-channel Lt Rt playback system are given by:
- *
- * Left = left + 0.7 * center - 0.7 * (lt surround + rt surround)
- *
- * Right = right + 0.7 * center + 0.7 * (lt surround + rt surround)
- *
- * Embedded mixing to 2-channel
- *
- * One concern arising from the proliferation of multi-channel audio
- * systems is that most home systems presently have only two channel
- * playback capability. To accommodate this a fixed 2-channel down
- * matrix processes is commonly used following the multi-channel
- * decoding stage. However, for music only applications the image
- * quality etc. of the down matrixed signal may not match that of an
- * equivalent stereo recording found on CD.
- *
- * The concept of embedded mixing is to allow the producer to
- * dynamically specify the matrixing coefficients within the audio
- * frame itself. In this way the stereo down mix at the decoder may be
- * better matched to a 2-channel playback environment.
- *
- * CHS*2, 7-bit down mix indexes (MCOEFFS) are transmitted along with
- * the multi-channel audio once in every frame. The indexes are
- * converted to attenuation factors using a 7 bit LUT. The 2-ch down
- * mix equations are as follows,
- *
- * Left Ch = sum (MCOEFF[n] * Ch[n]) for n=1, CHS
- *
- * Right Ch = sum (MCOEFF[n + CHS] * Ch[n]) for n=1, CHS
- *
- * where Ch(n) represents the subband samples in the (n)th audio channel.
- */
-
-const uint32_t ff_dca_map_xxch_to_native[28] = {
- AV_CH_FRONT_CENTER,
- AV_CH_FRONT_LEFT,
- AV_CH_FRONT_RIGHT,
- AV_CH_SIDE_LEFT,
- AV_CH_SIDE_RIGHT,
- AV_CH_LOW_FREQUENCY,
- AV_CH_BACK_CENTER,
- AV_CH_BACK_LEFT,
- AV_CH_BACK_RIGHT,
- AV_CH_SIDE_LEFT, /* side surround left -- dup sur side L */
- AV_CH_SIDE_RIGHT, /* side surround right -- dup sur side R */
- AV_CH_FRONT_LEFT_OF_CENTER,
- AV_CH_FRONT_RIGHT_OF_CENTER,
- AV_CH_TOP_FRONT_LEFT,
- AV_CH_TOP_FRONT_CENTER,
- AV_CH_TOP_FRONT_RIGHT,
- AV_CH_LOW_FREQUENCY, /* lfe2 -- duplicate lfe1 position */
- AV_CH_FRONT_LEFT_OF_CENTER, /* side front left -- dup front cntr L */
- AV_CH_FRONT_RIGHT_OF_CENTER,/* side front right -- dup front cntr R */
- AV_CH_TOP_CENTER, /* overhead */
- AV_CH_TOP_FRONT_LEFT, /* side high left -- dup */
- AV_CH_TOP_FRONT_RIGHT, /* side high right -- dup */
- AV_CH_TOP_BACK_CENTER,
- AV_CH_TOP_BACK_LEFT,
- AV_CH_TOP_BACK_RIGHT,
- AV_CH_BACK_CENTER, /* rear low center -- dup */
- AV_CH_BACK_LEFT, /* rear low left -- dup */
- AV_CH_BACK_RIGHT /* read low right -- dup */
-};
-
-/* -1 are reserved or unknown */
-const int ff_dca_ext_audio_descr_mask[8] = {
- DCA_EXT_XCH,
- -1,
- DCA_EXT_X96,
- DCA_EXT_XCH | DCA_EXT_X96,
- -1,
- -1,
- DCA_EXT_XXCH,
- -1,
-};
-
-/* Tables for mapping dts channel configurations to libavcodec multichannel
api.
- * Some compromises have been made for special configurations. Most
configurations
- * are never used so complete accuracy is not needed.
- *
- * L = left, R = right, C = center, S = surround, F = front, R = rear, T =
total, OV = overhead.
- * S -> side, when both rear and back are configured move one of them to the
side channel
- * OV -> center back
- * All 2 channel configurations -> AV_CH_LAYOUT_STEREO
- */
-const uint64_t ff_dca_core_channel_layout[16] = {
- AV_CH_FRONT_CENTER,
///< 1, A
- AV_CH_LAYOUT_STEREO,
///< 2, A + B (dual mono)
- AV_CH_LAYOUT_STEREO,
///< 2, L + R (stereo)
- AV_CH_LAYOUT_STEREO,
///< 2, (L + R) + (L - R) (sum-difference)
- AV_CH_LAYOUT_STEREO,
///< 2, LT + RT (left and right total)
- AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER,
///< 3, C + L + R
- AV_CH_LAYOUT_STEREO | AV_CH_BACK_CENTER,
///< 3, L + R + S
- AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER,
///< 4, C + L + R + S
- AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT,
///< 4, L + R + SL + SR
-
- AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_SIDE_LEFT |
- AV_CH_SIDE_RIGHT,
///< 5, C + L + R + SL + SR
-
- AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
- AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER,
///< 6, CL + CR + L + R + SL + SR
-
- AV_CH_LAYOUT_STEREO | AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT |
- AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER,
///< 6, C + L + R + LR + RR + OV
-
- AV_CH_FRONT_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
- AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_BACK_CENTER |
- AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT,
///< 6, CF + CR + LF + RF + LR + RR
-
- AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
- AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
- AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT,
///< 7, CL + C + CR + L + R + SL + SR
-
- AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
- AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
- AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT,
///< 8, CL + CR + L + R + SL1 + SL2 + SR1 + SR2
-
- AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
- AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
- AV_CH_SIDE_LEFT | AV_CH_BACK_CENTER | AV_CH_SIDE_RIGHT,
///< 8, CL + C + CR + L + R + SL + S + SR
-};
-
const int8_t ff_dca_lfe_index[16] = {
1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 1, 3, 2, 3
};
@@ -8415,25 +8135,6 @@ const int8_t ff_dca_channel_reorder_lfe[16][9] = {
{ 4, 2, 5, 0, 1, 6, 8, 7, -1 },
};
-const int8_t ff_dca_channel_reorder_lfe_xch[16][9] = {
- { 0, 2, -1, -1, -1, -1, -1, -1, -1 },
- { 0, 1, 3, -1, -1, -1, -1, -1, -1 },
- { 0, 1, 3, -1, -1, -1, -1, -1, -1 },
- { 0, 1, 3, -1, -1, -1, -1, -1, -1 },
- { 0, 1, 3, -1, -1, -1, -1, -1, -1 },
- { 2, 0, 1, 4, -1, -1, -1, -1, -1 },
- { 0, 1, 3, 4, -1, -1, -1, -1, -1 },
- { 2, 0, 1, 4, 5, -1, -1, -1, -1 },
- { 0, 1, 4, 5, 3, -1, -1, -1, -1 },
- { 2, 0, 1, 5, 6, 4, -1, -1, -1 },
- { 3, 4, 0, 1, 6, 7, 5, -1, -1 },
- { 2, 0, 1, 4, 5, 6, 7, -1, -1 },
- { 0, 6, 4, 5, 2, 3, 7, -1, -1 },
- { 4, 2, 5, 0, 1, 7, 8, 6, -1 },
- { 5, 6, 0, 1, 8, 3, 9, 4, 7 },
- { 4, 2, 5, 0, 1, 6, 9, 8, 7 },
-};
-
const int8_t ff_dca_channel_reorder_nolfe[16][9] = {
{ 0, -1, -1, -1, -1, -1, -1, -1, -1 },
{ 0, 1, -1, -1, -1, -1, -1, -1, -1 },
@@ -8453,25 +8154,6 @@ const int8_t ff_dca_channel_reorder_nolfe[16][9] = {
{ 3, 2, 4, 0, 1, 5, 7, 6, -1 },
};
-const int8_t ff_dca_channel_reorder_nolfe_xch[16][9] = {
- { 0, 1, -1, -1, -1, -1, -1, -1, -1 },
- { 0, 1, 2, -1, -1, -1, -1, -1, -1 },
- { 0, 1, 2, -1, -1, -1, -1, -1, -1 },
- { 0, 1, 2, -1, -1, -1, -1, -1, -1 },
- { 0, 1, 2, -1, -1, -1, -1, -1, -1 },
- { 2, 0, 1, 3, -1, -1, -1, -1, -1 },
- { 0, 1, 2, 3, -1, -1, -1, -1, -1 },
- { 2, 0, 1, 3, 4, -1, -1, -1, -1 },
- { 0, 1, 3, 4, 2, -1, -1, -1, -1 },
- { 2, 0, 1, 4, 5, 3, -1, -1, -1 },
- { 2, 3, 0, 1, 5, 6, 4, -1, -1 },
- { 2, 0, 1, 3, 4, 5, 6, -1, -1 },
- { 0, 5, 3, 4, 1, 2, 6, -1, -1 },
- { 3, 2, 4, 0, 1, 6, 7, 5, -1 },
- { 4, 5, 0, 1, 7, 2, 8, 3, 6 },
- { 3, 2, 4, 0, 1, 5, 8, 7, 6 },
-};
-
const uint16_t ff_dca_vlc_offs[63] = {
0, 512, 640, 768, 1282, 1794, 2436, 3080, 3770, 4454,
5364,
5372, 5380, 5388, 5392, 5396, 5412, 5420, 5428, 5460, 5492,
5508,
diff --git a/libavcodec/dcadata.h b/libavcodec/dcadata.h
index 262c37e..3d318fe 100644
--- a/libavcodec/dcadata.h
+++ b/libavcodec/dcadata.h
@@ -45,7 +45,6 @@ extern const float ff_dca_fir_32bands_nonperfect[512];
extern const float ff_dca_lfe_fir_64[256];
extern const float ff_dca_lfe_fir_128[256];
-extern const float ff_dca_lfe_xll_fir_64[256];
extern const float ff_dca_fir_64bands[1024];
#define FF_DCA_DMIXTABLE_SIZE 242
@@ -54,21 +53,12 @@ extern const float ff_dca_fir_64bands[1024];
extern const uint16_t ff_dca_dmixtable[FF_DCA_DMIXTABLE_SIZE];
extern const uint32_t ff_dca_inv_dmixtable[FF_DCA_INV_DMIXTABLE_SIZE];
-extern const float ff_dca_default_coeffs[10][6][2];
-
-extern const uint32_t ff_dca_map_xxch_to_native[28];
-extern const int ff_dca_ext_audio_descr_mask[8];
-
-extern const uint64_t ff_dca_core_channel_layout[16];
-
extern const int32_t ff_dca_sampling_freqs[16];
extern const int8_t ff_dca_lfe_index[16];
extern const int8_t ff_dca_channel_reorder_lfe[16][9];
-extern const int8_t ff_dca_channel_reorder_lfe_xch[16][9];
extern const int8_t ff_dca_channel_reorder_nolfe[16][9];
-extern const int8_t ff_dca_channel_reorder_nolfe_xch[16][9];
extern const uint16_t ff_dca_vlc_offs[63];
--
2.1.4
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