diff options
author | James Almer <jamrial@gmail.com> | 2013-06-15 21:04:19 +0400 |
---|---|---|
committer | James Almer <jamrial@gmail.com> | 2013-06-16 01:54:01 +0400 |
commit | 99b8cd0c81c4509571bcdc0dc55d506c8200dc61 (patch) | |
tree | ce47f7dc8782111777dabe14fc91604983bb2e52 /libavutil | |
parent | 1bb005ce54d113e266f3c78354eb2bca65d5fa35 (diff) |
lavu: Add RIPEMD hashing
Includes RIPEMD-128, RIPEMD-160, RIPEMD-256 and RIPEMD-320
Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavutil')
-rw-r--r-- | libavutil/Makefile | 3 | ||||
-rw-r--r-- | libavutil/ripemd.c | 435 | ||||
-rw-r--r-- | libavutil/ripemd.h | 75 | ||||
-rw-r--r-- | libavutil/version.h | 2 |
4 files changed, 514 insertions, 1 deletions
diff --git a/libavutil/Makefile b/libavutil/Makefile index f1ff9c6c6d..21746f0713 100644 --- a/libavutil/Makefile +++ b/libavutil/Makefile @@ -43,6 +43,7 @@ HEADERS = adler32.h \ pixfmt.h \ random_seed.h \ rational.h \ + ripemd.h \ samplefmt.h \ sha.h \ sha512.h \ @@ -102,6 +103,7 @@ OBJS = adler32.o \ random_seed.o \ rational.o \ rc4.o \ + ripemd.o \ samplefmt.o \ sha.o \ sha512.o \ @@ -148,6 +150,7 @@ TESTPROGS = adler32 \ parseutils \ random_seed \ rational \ + ripemd \ sha \ sha512 \ tree \ diff --git a/libavutil/ripemd.c b/libavutil/ripemd.c new file mode 100644 index 0000000000..42aca8ab41 --- /dev/null +++ b/libavutil/ripemd.c @@ -0,0 +1,435 @@ +/* + * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at> + * Copyright (C) 2013 James Almer + * + * This file is part of FFmpeg. + * + * FFmpeg 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. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <string.h> + +#include "attributes.h" +#include "avutil.h" +#include "bswap.h" +#include "intreadwrite.h" +#include "ripemd.h" +#include "mem.h" + +/** hash context */ +typedef struct AVRIPEMD { + uint8_t digest_len; ///< digest length in 32-bit words + uint64_t count; ///< number of bytes in buffer + uint8_t buffer[64]; ///< 512-bit buffer of input values used in hash updating + uint32_t state[10]; ///< current hash value + uint8_t ext; ///< extension (0 for 128 and 160, 1 for 256 and 320) + /** function used to update hash for 512-bit input block */ + void (*transform)(uint32_t *state, const uint8_t buffer[64], int ext); +} AVRIPEMD; + +const int av_ripemd_size = sizeof(AVRIPEMD); + +struct AVRIPEMD *av_ripemd_alloc(void) +{ + return av_mallocz(sizeof(struct AVRIPEMD)); +} + +static const uint32_t KA[4] = { + 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xa953fd4e +}; + +static const uint32_t KB[4] = { + 0x50a28be6, 0x5c4dd124, 0x6d703ef3, 0x7a6d76e9 +}; + +static const int ROTA[80] = { + 11, 14, 15, 12, 5, 8, 7 , 9, 11, 13, 14, 15, 6, 7, 9, 8, + 7 , 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12, + 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5, + 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12, + 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6 +}; + +static const int ROTB[80] = { + 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6, + 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11, + 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5, + 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8, + 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11 +}; + +static const int WA[80] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8, + 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12, + 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2, + 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13 +}; + +static const int WB[80] = { + 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12, + 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2, + 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13, + 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14, + 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11 +}; + +#define rol(value, bits) ((value << bits) | (value >> (32 - bits))) + +#define SWAP(a,b) if (ext) { int t = a; a = b; b = t; } + +#define ROUND128_0_TO_15(a,b,c,d,e,f,g,h) \ + a = rol(a + (( b ^ c ^ d) + block[WA[n]]), ROTA[n]); \ + e = rol(e + ((((f ^ g) & h) ^ g) + block[WB[n]] + KB[0]), ROTB[n]); \ + n++ + +#define ROUND128_16_TO_31(a,b,c,d,e,f,g,h) \ + a = rol(a + ((((c ^ d) & b) ^ d) + block[WA[n]] + KA[0]), ROTA[n]); \ + e = rol(e + (((~g | f) ^ h) + block[WB[n]] + KB[1]), ROTB[n]); \ + n++ + +#define ROUND128_32_TO_47(a,b,c,d,e,f,g,h) \ + a = rol(a + (((~c | b) ^ d) + block[WA[n]] + KA[1]), ROTA[n]); \ + e = rol(e + ((((g ^ h) & f) ^ h) + block[WB[n]] + KB[2]), ROTB[n]); \ + n++ + +#define ROUND128_48_TO_63(a,b,c,d,e,f,g,h) \ + a = rol(a + ((((b ^ c) & d) ^ c) + block[WA[n]] + KA[2]), ROTA[n]); \ + e = rol(e + (( f ^ g ^ h) + block[WB[n]]), ROTB[n]); \ + n++ + +static void ripemd128_transform(uint32_t *state, const uint8_t buffer[64], int ext) +{ + uint32_t a, b, c, d, e, f, g, h; + uint32_t block[16]; + int n; + + if (ext) { + a = state[0]; b = state[1]; c = state[2]; d = state[3]; + e = state[4]; f = state[5]; g = state[6]; h = state[7]; + } else { + a = e = state[0]; + b = f = state[1]; + c = g = state[2]; + d = h = state[3]; + } + + for (n = 0; n < 16; n++) + block[n] = AV_RL32(buffer + 4 * n); + + for (n = 0; n < 16;) { + ROUND128_0_TO_15(a,b,c,d,e,f,g,h); + ROUND128_0_TO_15(d,a,b,c,h,e,f,g); + ROUND128_0_TO_15(c,d,a,b,g,h,e,f); + ROUND128_0_TO_15(b,c,d,a,f,g,h,e); + } + SWAP(a,e) + + for (; n < 32;) { + ROUND128_16_TO_31(a,b,c,d,e,f,g,h); + ROUND128_16_TO_31(d,a,b,c,h,e,f,g); + ROUND128_16_TO_31(c,d,a,b,g,h,e,f); + ROUND128_16_TO_31(b,c,d,a,f,g,h,e); + } + SWAP(b,f) + + for (; n < 48;) { + ROUND128_32_TO_47(a,b,c,d,e,f,g,h); + ROUND128_32_TO_47(d,a,b,c,h,e,f,g); + ROUND128_32_TO_47(c,d,a,b,g,h,e,f); + ROUND128_32_TO_47(b,c,d,a,f,g,h,e); + } + SWAP(c,g) + + for (; n < 64;) { + ROUND128_48_TO_63(a,b,c,d,e,f,g,h); + ROUND128_48_TO_63(d,a,b,c,h,e,f,g); + ROUND128_48_TO_63(c,d,a,b,g,h,e,f); + ROUND128_48_TO_63(b,c,d,a,f,g,h,e); + } + SWAP(d,h) + + if (ext) { + state[0] += a; state[1] += b; state[2] += c; state[3] += d; + state[4] += e; state[5] += f; state[6] += g; state[7] += h; + } else { + h += c + state[1]; + state[1] = state[2] + d + e; + state[2] = state[3] + a + f; + state[3] = state[0] + b + g; + state[0] = h; + } +} + +#define ROTATE(x,y) \ + x = rol(x, 10); \ + y = rol(y, 10); \ + n++ + +#define ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j) \ + a = rol(a + (( b ^ c ^ d) + block[WA[n]]), ROTA[n]) + e; \ + f = rol(f + (((~i | h) ^ g) + block[WB[n]] + KB[0]), ROTB[n]) + j; \ + ROTATE(c,h) + +#define ROUND160_16_TO_31(a,b,c,d,e,f,g,h,i,j) \ + a = rol(a + ((((c ^ d) & b) ^ d) + block[WA[n]] + KA[0]), ROTA[n]) + e; \ + f = rol(f + ((((g ^ h) & i) ^ h) + block[WB[n]] + KB[1]), ROTB[n]) + j; \ + ROTATE(c,h) + +#define ROUND160_32_TO_47(a,b,c,d,e,f,g,h,i,j) \ + a = rol(a + (((~c | b) ^ d) + block[WA[n]] + KA[1]), ROTA[n]) + e; \ + f = rol(f + (((~h | g) ^ i) + block[WB[n]] + KB[2]), ROTB[n]) + j; \ + ROTATE(c,h) + +#define ROUND160_48_TO_63(a,b,c,d,e,f,g,h,i,j) \ + a = rol(a + ((((b ^ c) & d) ^ c) + block[WA[n]] + KA[2]), ROTA[n]) + e; \ + f = rol(f + ((((h ^ i) & g) ^ i) + block[WB[n]] + KB[3]), ROTB[n]) + j; \ + ROTATE(c,h) + +#define ROUND160_64_TO_79(a,b,c,d,e,f,g,h,i,j) \ + a = rol(a + (((~d | c) ^ b) + block[WA[n]] + KA[3]), ROTA[n]) + e; \ + f = rol(f + (( g ^ h ^ i) + block[WB[n]]), ROTB[n]) + j; \ + ROTATE(c,h) + +static void ripemd160_transform(uint32_t *state, const uint8_t buffer[64], int ext) +{ + uint32_t a, b, c, d, e, f, g, h, i, j; + uint32_t block[16]; + int n; + + if (ext) { + a = state[0]; b = state[1]; c = state[2]; d = state[3]; e = state[4]; + f = state[5]; g = state[6]; h = state[7]; i = state[8]; j = state[9]; + } else { + a = f = state[0]; + b = g = state[1]; + c = h = state[2]; + d = i = state[3]; + e = j = state[4]; + } + + for (n = 0; n < 16; n++) + block[n] = AV_RL32(buffer + 4 * n); + + for (n = 0; n < 16 - 1;) { + ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j); + ROUND160_0_TO_15(e,a,b,c,d,j,f,g,h,i); + ROUND160_0_TO_15(d,e,a,b,c,i,j,f,g,h); + ROUND160_0_TO_15(c,d,e,a,b,h,i,j,f,g); + ROUND160_0_TO_15(b,c,d,e,a,g,h,i,j,f); + } + ROUND160_0_TO_15(a,b,c,d,e,f,g,h,i,j); + SWAP(a,f) + + for (; n < 32 - 1;) { + ROUND160_16_TO_31(e,a,b,c,d,j,f,g,h,i); + ROUND160_16_TO_31(d,e,a,b,c,i,j,f,g,h); + ROUND160_16_TO_31(c,d,e,a,b,h,i,j,f,g); + ROUND160_16_TO_31(b,c,d,e,a,g,h,i,j,f); + ROUND160_16_TO_31(a,b,c,d,e,f,g,h,i,j); + } + ROUND160_16_TO_31(e,a,b,c,d,j,f,g,h,i); + SWAP(b,g) + + for (; n < 48 - 1;) { + ROUND160_32_TO_47(d,e,a,b,c,i,j,f,g,h); + ROUND160_32_TO_47(c,d,e,a,b,h,i,j,f,g); + ROUND160_32_TO_47(b,c,d,e,a,g,h,i,j,f); + ROUND160_32_TO_47(a,b,c,d,e,f,g,h,i,j); + ROUND160_32_TO_47(e,a,b,c,d,j,f,g,h,i); + } + ROUND160_32_TO_47(d,e,a,b,c,i,j,f,g,h); + SWAP(c,h) + + for (; n < 64 - 1;) { + ROUND160_48_TO_63(c,d,e,a,b,h,i,j,f,g); + ROUND160_48_TO_63(b,c,d,e,a,g,h,i,j,f); + ROUND160_48_TO_63(a,b,c,d,e,f,g,h,i,j); + ROUND160_48_TO_63(e,a,b,c,d,j,f,g,h,i); + ROUND160_48_TO_63(d,e,a,b,c,i,j,f,g,h); + } + ROUND160_48_TO_63(c,d,e,a,b,h,i,j,f,g); + SWAP(d,i) + + for (; n < 80 - 1;) { + ROUND160_64_TO_79(b,c,d,e,a,g,h,i,j,f); + ROUND160_64_TO_79(a,b,c,d,e,f,g,h,i,j); + ROUND160_64_TO_79(e,a,b,c,d,j,f,g,h,i); + ROUND160_64_TO_79(d,e,a,b,c,i,j,f,g,h); + ROUND160_64_TO_79(c,d,e,a,b,h,i,j,f,g); + } + ROUND160_64_TO_79(b,c,d,e,a,g,h,i,j,f); + SWAP(e,j) + + if (ext) { + state[0] += a; state[1] += b; state[2] += c; state[3] += d; state[4] += e; + state[5] += f; state[6] += g; state[7] += h; state[8] += i; state[9] += j; + } else { + i += c + state[1]; + state[1] = state[2] + d + j; + state[2] = state[3] + e + f; + state[3] = state[4] + a + g; + state[4] = state[0] + b + h; + state[0] = i; + } +} + +av_cold int av_ripemd_init(AVRIPEMD *ctx, int bits) +{ + ctx->digest_len = bits >> 5; + switch (bits) { + case 128: // RIPEMD-128 + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; + ctx->transform = ripemd128_transform; + ctx->ext = 0; + break; + case 160: // RIPEMD-160 + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; + ctx->state[4] = 0xC3D2E1F0; + ctx->transform = ripemd160_transform; + ctx->ext = 0; + break; + case 256: // RIPEMD-256 + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; + ctx->state[4] = 0x76543210; + ctx->state[5] = 0xFEDCBA98; + ctx->state[6] = 0x89ABCDEF; + ctx->state[7] = 0x01234567; + ctx->transform = ripemd128_transform; + ctx->ext = 1; + break; + case 320: // RIPEMD-320 + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; + ctx->state[4] = 0xC3D2E1F0; + ctx->state[5] = 0x76543210; + ctx->state[6] = 0xFEDCBA98; + ctx->state[7] = 0x89ABCDEF; + ctx->state[8] = 0x01234567; + ctx->state[9] = 0x3C2D1E0F; + ctx->transform = ripemd160_transform; + ctx->ext = 1; + break; + default: + return -1; + } + ctx->count = 0; + return 0; +} + +void av_ripemd_update(AVRIPEMD* ctx, const uint8_t* data, unsigned int len) +{ + unsigned int i, j; + + j = ctx->count & 63; + ctx->count += len; +#if CONFIG_SMALL + for (i = 0; i < len; i++) { + ctx->buffer[j++] = data[i]; + if (64 == j) { + ctx->transform(ctx->state, ctx->buffer, ctx->ext); + j = 0; + } + } +#else + if ((j + len) > 63) { + memcpy(&ctx->buffer[j], data, (i = 64 - j)); + ctx->transform(ctx->state, ctx->buffer, ctx->ext); + for (; i + 63 < len; i += 64) + ctx->transform(ctx->state, &data[i], ctx->ext); + j = 0; + } else + i = 0; + memcpy(&ctx->buffer[j], &data[i], len - i); +#endif +} + +void av_ripemd_final(AVRIPEMD* ctx, uint8_t *digest) +{ + int i; + uint64_t finalcount = av_le2ne64(ctx->count << 3); + + av_ripemd_update(ctx, "\200", 1); + while ((ctx->count & 63) != 56) + av_ripemd_update(ctx, "", 1); + av_ripemd_update(ctx, (uint8_t *)&finalcount, 8); /* Should cause a transform() */ + for (i = 0; i < ctx->digest_len; i++) + AV_WL32(digest + i*4, ctx->state[i]); +} + +#ifdef TEST +#include <stdio.h> + +int main(void) +{ + int i, j, k; + AVRIPEMD ctx; + unsigned char digest[40]; + const int lengths[4] = { 128, 160, 256, 320 }; + + for (j = 0; j < 4; j++) { + printf("Testing RIPEMD-%d\n", lengths[j]); + for (k = 0; k < 3; k++) { + av_ripemd_init(&ctx, lengths[j]); + if (k == 0) + av_ripemd_update(&ctx, "abc", 3); + else if (k == 1) + av_ripemd_update(&ctx, "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", 56); + else + for (i = 0; i < 1000*1000; i++) + av_ripemd_update(&ctx, "a", 1); + av_ripemd_final(&ctx, digest); + for (i = 0; i < lengths[j] >> 3; i++) + printf("%02X", digest[i]); + putchar('\n'); + } + switch (j) { //test vectors (from ISO:IEC 10118-3 (2004) and http://homes.esat.kuleuven.be/~bosselae/ripemd160.html) + case 0: + printf("c14a1219 9c66e4ba 84636b0f 69144c77\n" + "a1aa0689 d0fafa2d dc22e88b 49133a06\n" + "4a7f5723 f954eba1 216c9d8f 6320431f\n"); + break; + case 1: + printf("8eb208f7 e05d987a 9b044a8e 98c6b087 f15a0bfc\n" + "12a05338 4a9c0c88 e405a06c 27dcf49a da62eb2b\n" + "52783243 c1697bdb e16d37f9 7f68f083 25dc1528\n"); + break; + case 2: + printf("afbd6e22 8b9d8cbb cef5ca2d 03e6dba1 0ac0bc7d cbe4680e 1e42d2e9 75459b65\n" + "38430455 83aac6c8 c8d91285 73e7a980 9afb2a0f 34ccc36e a9e72f16 f6368e3f\n" + "ac953744 e10e3151 4c150d4d 8d7b6773 42e33399 788296e4 3ae4850c e4f97978\n"); + break; + case 3: + printf("de4c01b3 054f8930 a79d09ae 738e9230 1e5a1708 5beffdc1 b8d11671 3e74f82f a942d64c dbc4682d\n" + "d034a795 0cf72202 1ba4b84d f769a5de 2060e259 df4c9bb4 a4268c0e 935bbc74 70a969c9 d072a1ac\n" + "bdee37f4 371e2064 6b8b0d86 2dda1629 2ae36f40 965e8c85 09e63d1d bddecc50 3e2b63eb 9245bb66\n"); + break; + } + } + + return 0; +} +#endif diff --git a/libavutil/ripemd.h b/libavutil/ripemd.h new file mode 100644 index 0000000000..7b0c8bc89c --- /dev/null +++ b/libavutil/ripemd.h @@ -0,0 +1,75 @@ +/* + * Copyright (C) 2007 Michael Niedermayer <michaelni@gmx.at> + * Copyright (C) 2013 James Almer <jamrial@gmail.com> + * + * This file is part of FFmpeg. + * + * FFmpeg 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. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_RIPEMD_H +#define AVUTIL_RIPEMD_H + +#include <stdint.h> + +#include "attributes.h" +#include "version.h" + +/** + * @defgroup lavu_ripemd RIPEMD + * @ingroup lavu_crypto + * @{ + */ + +extern const int av_ripemd_size; + +struct AVRIPEMD; + +/** + * Allocate an AVRIPEMD context. + */ +struct AVRIPEMD *av_ripemd_alloc(void); + +/** + * Initialize RIPEMD hashing. + * + * @param context pointer to the function context (of size av_ripemd_size) + * @param bits number of bits in digest (128, 160, 256 or 320 bits) + * @return zero if initialization succeeded, -1 otherwise + */ +int av_ripemd_init(struct AVRIPEMD* context, int bits); + +/** + * Update hash value. + * + * @param context hash function context + * @param data input data to update hash with + * @param len input data length + */ +void av_ripemd_update(struct AVRIPEMD* context, const uint8_t* data, unsigned int len); + +/** + * Finish hashing and output digest value. + * + * @param context hash function context + * @param digest buffer where output digest value is stored + */ +void av_ripemd_final(struct AVRIPEMD* context, uint8_t *digest); + +/** + * @} + */ + +#endif /* AVUTIL_RIPEMD_H */ diff --git a/libavutil/version.h b/libavutil/version.h index ff98c6985c..6013fa17cc 100644 --- a/libavutil/version.h +++ b/libavutil/version.h @@ -75,7 +75,7 @@ */ #define LIBAVUTIL_VERSION_MAJOR 52 -#define LIBAVUTIL_VERSION_MINOR 36 +#define LIBAVUTIL_VERSION_MINOR 37 #define LIBAVUTIL_VERSION_MICRO 100 #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \ |