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26 #ifndef AVUTIL_COMMON_H
27 #define AVUTIL_COMMON_H
29 #if defined(__cplusplus) && !defined(__STDC_CONSTANT_MACROS) && !defined(UINT64_C)
30 #error missing -D__STDC_CONSTANT_MACROS / #define __STDC_CONSTANT_MACROS
48 # define AV_NE(be, le) (be)
50 # define AV_NE(be, le) (le)
54 #define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
56 #define ROUNDED_DIV(a,b) (((a)>=0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
58 #define AV_CEIL_RSHIFT(a,b) (!av_builtin_constant_p(b) ? -((-(a)) >> (b)) \
59 : ((a) + (1<<(b)) - 1) >> (b))
61 #define FF_CEIL_RSHIFT AV_CEIL_RSHIFT
63 #define FFUDIV(a,b) (((a)>0 ?(a):(a)-(b)+1) / (b))
64 #define FFUMOD(a,b) ((a)-(b)*FFUDIV(a,b))
72 #define FFABS(a) ((a) >= 0 ? (a) : (-(a)))
73 #define FFSIGN(a) ((a) > 0 ? 1 : -1)
81 #define FFNABS(a) ((a) <= 0 ? (a) : (-(a)))
92 #define FFDIFFSIGN(x,y) (((x)>(y)) - ((x)<(y)))
94 #define FFMAX(a,b) ((a) > (b) ? (a) : (b))
95 #define FFMAX3(a,b,c) FFMAX(FFMAX(a,b),c)
96 #define FFMIN(a,b) ((a) > (b) ? (b) : (a))
97 #define FFMIN3(a,b,c) FFMIN(FFMIN(a,b),c)
99 #define FFSWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0)
100 #define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
104 #ifdef HAVE_AV_CONFIG_H
106 # include "intmath.h"
116 #ifndef av_log2_16bit
129 #if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
130 if (amin > amax) abort();
132 if (
a < amin)
return amin;
133 else if (
a > amax)
return amax;
146 #if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
147 if (amin > amax) abort();
149 if (
a < amin)
return amin;
150 else if (
a > amax)
return amax;
161 if (
a&(~0xFF))
return (~
a)>>31;
172 if ((
a+0x80U) & ~0xFF)
return (
a>>31) ^ 0x7F;
183 if (
a&(~0xFFFF))
return (~
a)>>31;
194 if ((
a+0x8000U) & ~0xFFFF)
return (
a>>31) ^ 0x7FFF;
205 if ((
a+0x80000000u) & ~UINT64_C(0xFFFFFFFF))
return (
int32_t)((
a>>63) ^ 0x7FFFFFFF);
217 if (((
unsigned)
a + (1 << p)) & ~((2 << p) - 1))
218 return (
a >> 31) ^ ((1 << p) - 1);
231 if (
a & ~((1<<p) - 1))
return (~
a) >> 31 & ((1<<p) - 1);
243 return a & ((1
U << p) - 1);
255 return av_clipl_int32((int64_t)
a +
b);
267 return av_sat_add32(
a, av_sat_add32(
b,
b));
279 return av_clipl_int32((int64_t)
a -
b);
291 return av_sat_sub32(
a, av_sat_add32(
b,
b));
302 #if (!defined(__INTEL_COMPILER) && AV_GCC_VERSION_AT_LEAST(5,1)) || AV_HAS_BUILTIN(__builtin_add_overflow)
304 return !__builtin_add_overflow(
a,
b, &
tmp) ?
tmp : (
tmp < 0 ? INT64_MAX : INT64_MIN);
306 if (
b >= 0 &&
a >= INT64_MAX -
b)
308 if (
b <= 0 &&
a <= INT64_MIN -
b)
322 #if (!defined(__INTEL_COMPILER) && AV_GCC_VERSION_AT_LEAST(5,1)) || AV_HAS_BUILTIN(__builtin_sub_overflow)
324 return !__builtin_sub_overflow(
a,
b, &
tmp) ?
tmp : (
tmp < 0 ? INT64_MAX : INT64_MIN);
326 if (b <= 0 && a >= INT64_MAX +
b)
328 if (
b >= 0 &&
a <= INT64_MIN +
b)
343 #if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
344 if (amin > amax) abort();
346 if (
a < amin)
return amin;
347 else if (
a > amax)
return amax;
360 #if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
361 if (amin > amax) abort();
363 if (
a < amin)
return amin;
364 else if (
a > amax)
return amax;
384 x -= (
x >> 1) & 0x55555555;
385 x = (
x & 0x33333333) + ((
x >> 2) & 0x33333333);
386 x = (
x + (
x >> 4)) & 0x0F0F0F0F;
388 return (
x + (
x >> 16)) & 0x3F;
398 return av_popcount((uint32_t)
x) + av_popcount((uint32_t)(
x >> 32));
403 return av_popcount(v) & 1;
406 #define MKTAG(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((unsigned)(d) << 24))
407 #define MKBETAG(a,b,c,d) ((d) | ((c) << 8) | ((b) << 16) | ((unsigned)(a) << 24))
427 #define GET_UTF8(val, GET_BYTE, ERROR)\
430 uint32_t top = (val & 128) >> 1;\
431 if ((val & 0xc0) == 0x80 || val >= 0xFE)\
434 unsigned int tmp = (GET_BYTE) - 128;\
437 val= (val<<6) + tmp;\
440 val &= (top << 1) - 1;\
452 #define GET_UTF16(val, GET_16BIT, ERROR)\
455 unsigned int hi = val - 0xD800;\
457 val = (GET_16BIT) - 0xDC00;\
458 if (val > 0x3FFU || hi > 0x3FFU)\
460 val += (hi<<10) + 0x10000;\
480 #define PUT_UTF8(val, tmp, PUT_BYTE)\
488 bytes = (av_log2(in) + 4) / 5;\
489 shift = (bytes - 1) * 6;\
490 tmp = (256 - (256 >> bytes)) | (in >> shift);\
492 while (shift >= 6) {\
494 tmp = 0x80 | ((in >> shift) & 0x3f);\
514 #define PUT_UTF16(val, tmp, PUT_16BIT)\
521 tmp = 0xD800 | ((in - 0x10000) >> 10);\
523 tmp = 0xDC00 | ((in - 0x10000) & 0x3FF);\
532 #ifdef HAVE_AV_CONFIG_H
533 # include "internal.h"
544 # define av_ceil_log2 av_ceil_log2_c
547 # define av_clip av_clip_c
550 # define av_clip64 av_clip64_c
552 #ifndef av_clip_uint8
553 # define av_clip_uint8 av_clip_uint8_c
556 # define av_clip_int8 av_clip_int8_c
558 #ifndef av_clip_uint16
559 # define av_clip_uint16 av_clip_uint16_c
561 #ifndef av_clip_int16
562 # define av_clip_int16 av_clip_int16_c
564 #ifndef av_clipl_int32
565 # define av_clipl_int32 av_clipl_int32_c
567 #ifndef av_clip_intp2
568 # define av_clip_intp2 av_clip_intp2_c
570 #ifndef av_clip_uintp2
571 # define av_clip_uintp2 av_clip_uintp2_c
573 #ifndef av_mod_uintp2
574 # define av_mod_uintp2 av_mod_uintp2_c
577 # define av_sat_add32 av_sat_add32_c
579 #ifndef av_sat_dadd32
580 # define av_sat_dadd32 av_sat_dadd32_c
583 # define av_sat_sub32 av_sat_sub32_c
585 #ifndef av_sat_dsub32
586 # define av_sat_dsub32 av_sat_dsub32_c
589 # define av_sat_add64 av_sat_add64_c
592 # define av_sat_sub64 av_sat_sub64_c
595 # define av_clipf av_clipf_c
598 # define av_clipd av_clipd_c
601 # define av_popcount av_popcount_c
603 #ifndef av_popcount64
604 # define av_popcount64 av_popcount64_c
607 # define av_parity av_parity_c
static av_always_inline av_const unsigned av_mod_uintp2_c(unsigned a, unsigned p)
Clear high bits from an unsigned integer starting with specific bit position.
av_const int av_log2_16bit(unsigned v)
static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
Clip a signed integer to an unsigned power of two range.
static av_always_inline int av_sat_sub32_c(int a, int b)
Subtract two signed 32-bit values with saturation.
static av_always_inline av_const uint16_t av_clip_uint16_c(int a)
Clip a signed integer value into the 0-65535 range.
static av_always_inline av_const uint8_t av_clip_uint8_c(int a)
Clip a signed integer value into the 0-255 range.
static av_always_inline int av_sat_dadd32_c(int a, int b)
Add a doubled value to another value with saturation at both stages.
static av_always_inline av_const int64_t av_clip64_c(int64_t a, int64_t amin, int64_t amax)
Clip a signed 64bit integer value into the amin-amax range.
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo x
static av_always_inline av_const float av_clipf_c(float a, float amin, float amax)
Clip a float value into the amin-amax range.
static av_always_inline av_const double av_clipd_c(double a, double amin, double amax)
Clip a double value into the amin-amax range.
static av_always_inline av_const int av_clip_intp2_c(int a, int p)
Clip a signed integer into the -(2^p),(2^p-1) range.
static av_always_inline av_const int av_clip_c(int a, int amin, int amax)
Clip a signed integer value into the amin-amax range.
av_const int av_log2(unsigned v)
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
static av_always_inline av_const int32_t av_clipl_int32_c(int64_t a)
Clip a signed 64-bit integer value into the -2147483648,2147483647 range.
static av_always_inline av_const int av_popcount_c(uint32_t x)
Count number of bits set to one in x.
static av_always_inline int av_sat_add32_c(int a, int b)
Add two signed 32-bit values with saturation.
static av_always_inline av_const int av_popcount64_c(uint64_t x)
Count number of bits set to one in x.
static av_always_inline int64_t av_sat_add64_c(int64_t a, int64_t b)
Add two signed 64-bit values with saturation.
static av_always_inline av_const int16_t av_clip_int16_c(int a)
Clip a signed integer value into the -32768,32767 range.
static av_always_inline int64_t av_sat_sub64_c(int64_t a, int64_t b)
Subtract two signed 64-bit values with saturation.
static av_always_inline int av_sat_dsub32_c(int a, int b)
Subtract a doubled value from another value with saturation at both stages.
static av_always_inline av_const int av_parity_c(uint32_t v)
static av_always_inline av_const int av_ceil_log2_c(int x)
Compute ceil(log2(x)).
static av_always_inline av_const int8_t av_clip_int8_c(int a)
Clip a signed integer value into the -128,127 range.