diff options
| -rw-r--r-- | libavcodec/arm/Makefile | 3 | ||||
| -rw-r--r-- | libavcodec/arm/flacdsp_arm.S | 146 | ||||
| -rw-r--r-- | libavcodec/arm/flacdsp_init_arm.c | 32 | ||||
| -rw-r--r-- | libavcodec/flacdsp.c | 4 | ||||
| -rw-r--r-- | libavcodec/flacdsp.h | 1 | ||||
| -rw-r--r-- | libavutil/arm/asm.S | 6 |
6 files changed, 192 insertions, 0 deletions
diff --git a/libavcodec/arm/Makefile b/libavcodec/arm/Makefile index a8e531cf18..745a5bdfe2 100644 --- a/libavcodec/arm/Makefile +++ b/libavcodec/arm/Makefile @@ -8,6 +8,9 @@ OBJS-$(CONFIG_DCA_DECODER) += arm/dcadsp_init_arm.o \ ARMV6-OBJS-$(CONFIG_AC3DSP) += arm/ac3dsp_armv6.o +OBJS-$(CONFIG_FLAC_DECODER) += arm/flacdsp_init_arm.o \ + arm/flacdsp_arm.o \ + OBJS-$(CONFIG_MPEGAUDIODSP) += arm/mpegaudiodsp_init_arm.o ARMV6-OBJS-$(CONFIG_MPEGAUDIODSP) += arm/mpegaudiodsp_fixed_armv6.o diff --git a/libavcodec/arm/flacdsp_arm.S b/libavcodec/arm/flacdsp_arm.S new file mode 100644 index 0000000000..d4441da1bb --- /dev/null +++ b/libavcodec/arm/flacdsp_arm.S @@ -0,0 +1,146 @@ +/* + * Copyright (c) 2012 Mans Rullgard <mans@mansr.com> + * + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/arm/asm.S" + +function flac_lpc_16_1_arm + ldr r12, [sp] + push {r4, lr} + ldr r1, [r1] + subs r12, r12, #2 + ldr lr, [r0], #4 + beq 2f + it lt + poplt {r4, pc} +1: + mul r4, lr, r1 + ldm r0, {r2, lr} + add_sh r2, r2, r4, asr r3 + mul r4, r2, r1 + subs r12, r12, #2 + add_sh lr, lr, r4, asr r3 + stm r0!, {r2, lr} + bgt 1b + it lt + poplt {r4, pc} +2: + mul r4, lr, r1 + ldr r2, [r0] + add_sh r2, r2, r4, asr r3 + str r2, [r0] + pop {r4, pc} +endfunc + +function flac_lpc_16_2_arm + ldr r12, [sp] + subs r12, r12, r2 + it le + bxle lr + + push {r4-r9, lr} + ldm r0!, {r6, r7} + ldm r1, {r8, r9} + subs r12, r12, #1 + beq 2f +1: + mul r4, r6, r8 + mul r5, r7, r8 + mla r4, r7, r9, r4 + ldm r0, {r6, r7} + add_sh r6, r6, r4, asr r3 + mla r5, r6, r9, r5 + add_sh r7, r7, r5, asr r3 + stm r0!, {r6, r7} + subs r12, r12, #2 + bgt 1b + it lt + poplt {r4-r9, pc} +2: + mul r4, r6, r8 + mla r4, r7, r9, r4 + ldr r5, [r0] + add_sh r5, r5, r4, asr r3 + str r5, [r0] + pop {r4-r9, pc} +endfunc + +function ff_flac_lpc_16_arm, export=1 + cmp r2, #2 + blt flac_lpc_16_1_arm + beq flac_lpc_16_2_arm + + ldr r12, [sp] + subs r12, r12, r2 + it le + bxle lr + + push {r4-r9, lr} + + subs r12, r12, #1 + beq 3f +1: + sub lr, r2, #2 + mov r4, #0 + mov r5, #0 + + ldr r7, [r0], #4 + ldr r9, [r1], #4 +2: + mla r4, r7, r9, r4 + ldm r0!, {r6, r7} + mla r5, r6, r9, r5 + ldm r1!, {r8, r9} + mla r4, r6, r8, r4 + subs lr, lr, #2 + mla r5, r7, r8, r5 + bgt 2b + blt 6f + + mla r4, r7, r9, r4 + ldr r7, [r0], #4 + mla r5, r7, r9, r5 + ldr r9, [r1], #4 +6: + mla r4, r7, r9, r4 + ldm r0, {r6, r7} + add_sh r6, r6, r4, asr r3 + mla r5, r6, r9, r5 + add_sh r7, r7, r5, asr r3 + stm r0!, {r6, r7} + sub r0, r0, r2, lsl #2 + sub r1, r1, r2, lsl #2 + + subs r12, r12, #2 + bgt 1b + it lt + poplt {r4-r9, pc} +3: + mov r4, #0 +4: + ldr r5, [r1], #4 + ldr r6, [r0], #4 + mla r4, r5, r6, r4 + subs r2, r2, #1 + bgt 4b + ldr r5, [r0] + add_sh r5, r5, r4, asr r3 + str r5, [r0] + pop {r4-r9, pc} +endfunc diff --git a/libavcodec/arm/flacdsp_init_arm.c b/libavcodec/arm/flacdsp_init_arm.c new file mode 100644 index 0000000000..0530cf7a85 --- /dev/null +++ b/libavcodec/arm/flacdsp_init_arm.c @@ -0,0 +1,32 @@ +/* + * Copyright (c) 2012 Mans Rullgard <mans@mansr.com> + * + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavcodec/flacdsp.h" +#include "config.h" + +void ff_flac_lpc_16_arm(int32_t *samples, const int coeffs[32], int order, + int qlevel, int len); + +av_cold void ff_flacdsp_init_arm(FLACDSPContext *c, enum AVSampleFormat fmt, + int bps) +{ + if (bps <= 16) + c->lpc = ff_flac_lpc_16_arm; +} diff --git a/libavcodec/flacdsp.c b/libavcodec/flacdsp.c index 88d689d3eb..3f4f71076c 100644 --- a/libavcodec/flacdsp.c +++ b/libavcodec/flacdsp.c @@ -21,6 +21,7 @@ #include "libavutil/attributes.h" #include "libavutil/samplefmt.h" #include "flacdsp.h" +#include "config.h" #define SAMPLE_SIZE 16 #define PLANAR 0 @@ -119,4 +120,7 @@ av_cold void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt, c->decorrelate[3] = flac_decorrelate_ms_c_16p; break; } + + if (ARCH_ARM) + ff_flacdsp_init_arm(c, fmt, bps); } diff --git a/libavcodec/flacdsp.h b/libavcodec/flacdsp.h index 16515539a6..429daab346 100644 --- a/libavcodec/flacdsp.h +++ b/libavcodec/flacdsp.h @@ -30,5 +30,6 @@ typedef struct FLACDSPContext { } FLACDSPContext; void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt, int bps); +void ff_flacdsp_init_arm(FLACDSPContext *c, enum AVSampleFormat fmt, int bps); #endif /* AVCODEC_FLACDSP_H */ diff --git a/libavutil/arm/asm.S b/libavutil/arm/asm.S index 15081802c6..7b3832a28a 100644 --- a/libavutil/arm/asm.S +++ b/libavutil/arm/asm.S @@ -186,6 +186,12 @@ ELF .size \name, . - \name #endif .endm +.macro add_sh rd, rn, rm, sh:vararg +A add \rd, \rn, \rm, \sh +T mov \rm, \rm, \sh +T add \rd, \rn, \rm +.endm + .macro ldr_pre rt, rn, rm:vararg A ldr \rt, [\rn, \rm]! T add \rn, \rn, \rm |