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14ea4151d7
ffmpeg/libavutil
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Ganesh Ajjanagadde 14ea4151d7 avutil/libm: correct isnan, isinf compat hacks 
isnan and isinf are actually macros as per the standard. In particular,
the existing implementation has incorrect signature. Furthermore, this
results in undefined behavior for e.g double values outside float range
as per the standard.

This patch corrects the undefined behavior for all usage within FFmpeg.

Note that long double is not handled as it is not used in FFmpeg.
Furthermore, even if at some point long double gets used, it is likely
not needed to modify the macro in practice for usage in FFmpeg. See
below for analysis.

Getting long double to work strictly per the spec is significantly harder
since a long double may be an IEEE 128 bit quad (very rare), 80 bit
extended precision value (on GCC/Clang), or simply double (on recent Microsoft).
On the other hand, any potential future usage of long double is likely
for precision (when a platform offers extra precision) and not for range, since
the range anyway varies and is not as portable as IEEE 754 single/double
precision. In such cases, the implicit cast to a double is well defined
and isinf and isnan should work as intended.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-11-21 08:51:49 -05:00
..
aarch64
arm avutil/attributes: add AV_GCC_VERSION_AT_MOST 2015-09-18 12:41:29 -03:00
avr32
bfin
mips mips: intreadwrite: Only execute that code for mips r1 or r2 2015-09-29 11:10:37 +02:00
ppc avutil/ppc/cpu: add include avassert.h 2015-06-05 19:12:58 +02:00
sh4
tomi
x86 avutil/x86/intmath: Fix intrinsic header include when using newer gcc with older icc. 2015-11-12 16:54:08 +11:00
adler32.c avutil/adler32: Fix data type in test code 2015-06-19 02:25:48 +02:00
adler32.h
aes_internal.h lavu/aes: align AVAES struct members 2015-10-28 04:23:14 -05:00
aes.c lavu/aes: test CBC functionality 2015-10-28 09:38:21 -05:00
aes.h lavu: Drop deprecated context size variables 2015-08-28 16:04:27 +02:00
atomic_gcc.h
atomic_suncc.h
atomic_win32.h
atomic.c
atomic.h
attributes.h avutil/attributes: add av_warn_unused_result 2015-10-05 19:30:20 +02:00
audio_fifo.c avfilter: add showfreqs filter 2015-08-19 16:15:13 +00:00
audio_fifo.h avutil/audio_fifo: add av_warn_unused_result 2015-10-28 23:05:31 -04:00
avassert.h
avstring.c avutil/avstring: Inline some tiny functions 2015-10-03 13:45:37 +02:00
avstring.h avutil/avstring: add av_warn_unused_result 2015-10-27 23:16:09 -04:00
avutil.h doxygen: Remove lavu_internal group 2015-08-22 10:07:05 -07:00
avutilres.rc
base64.c
base64.h
blowfish.c avutil: undo FF_API_CRYPTO_CONTEXT deprecation 2015-10-16 19:13:38 -03:00
blowfish.h avutil: undo FF_API_CRYPTO_CONTEXT deprecation 2015-10-16 19:13:38 -03:00
bprint.c
bprint.h
bswap.h
buffer_internal.h
buffer.c avutil/buffer: Avoid moving the AVBufferRef to a new place in memory in av_buffer_make_writable() 2015-03-12 02:15:28 +01:00
buffer.h
camellia.c avutil: use EINVAL instead of -1 for the return code of crypto related init functions 2015-10-18 15:17:58 -04:00
camellia.h
cast5.c avutil: use EINVAL instead of -1 for the return code of crypto related init functions 2015-10-18 15:17:58 -04:00
cast5.h avutil/cast5: update Doxygen for av_cast5_init with return information 2015-10-15 22:32:58 -04:00
channel_layout.c libavutil/channel_layout: Check strtol*() for failure 2015-11-05 19:28:19 +01:00
channel_layout.h Merge commit 'e23f84d9652474353d8bbc42787a56ec1991908f' 2015-08-24 10:40:24 +02:00
color_utils.c avutil/color_utils: Add basic transfer functions for each AVColorTransferCharacteristic 2015-09-10 23:53:05 +02:00
color_utils.h avutil/color_utils: Add basic transfer functions for each AVColorTransferCharacteristic 2015-09-10 23:53:05 +02:00
colorspace.h avutil/colorspace: Remove RGB_TO_Y/U/V 2015-06-06 18:21:01 +02:00
common.h avutil: Move av_rint64_clip_* to internal.h 2015-11-15 03:47:09 +01:00
cpu_internal.h Merge commit 'cae39851201b7781f1262e1c23627b45e6e80bb4' 2015-05-31 23:59:48 +02:00
cpu.c lavu: add AESNI CPU flag 2015-10-28 04:23:14 -05:00
cpu.h lavu: add AESNI CPU flag 2015-10-28 04:23:14 -05:00
crc.c avutil/crc: use EINVAL instead of -1 for the return code of av_crc_init() 2015-10-16 03:24:36 +02:00
crc.h
des.c avutil: use EINVAL instead of -1 for the return code of crypto related init functions 2015-10-18 15:17:58 -04:00
des.h avutil: undo FF_API_CRYPTO_CONTEXT deprecation 2015-10-16 19:13:38 -03:00
dict.c Merge commit '11c5f438ff83da5040e85bfa6299f56b321d32ef' 2015-10-14 14:01:11 +02:00
dict.h Merge commit '11c5f438ff83da5040e85bfa6299f56b321d32ef' 2015-10-14 14:01:11 +02:00
display.c Merge commit 'e4fe535d12f4f30df2dd672e30304af112a5a827' 2015-03-24 01:14:31 +01:00
display.h Merge commit 'e4fe535d12f4f30df2dd672e30304af112a5a827' 2015-03-24 01:14:31 +01:00
downmix_info.c
downmix_info.h
dynarray.h
error.c
error.h
eval.c avutil: add ff_reverse as av_reverse replacement 2015-08-12 00:14:14 +02:00
eval.h avutil/eval: minor typo 2015-11-01 19:35:01 -05:00
fifo.c avutil/fifo: add function av_fifo_generic_peek_at() 2015-10-14 20:23:58 +02:00
fifo.h avutil/fifo: add function av_fifo_generic_peek_at() 2015-10-14 20:23:58 +02:00
file_open.c avutil/file_open: avoid file handle inheritance on Windows 2015-11-02 17:40:49 +01:00
file.c
file.h avutil/file: add av_warn_unused_result to av_file_map 2015-10-16 17:18:39 -04:00
fixed_dsp.c avutil/fixed_dsp: remove ff_ prefix from static function 2015-06-20 03:39:09 -03:00
fixed_dsp.h libavutil: Add new fixed dsp functions. 2015-06-03 22:50:53 +02:00
float_dsp.c avutil: merge avpriv_float_dsp_init into avpriv_float_dsp_alloc 2015-10-21 00:24:58 +02:00
float_dsp.h avutil: merge avpriv_float_dsp_init into avpriv_float_dsp_alloc 2015-10-21 00:24:58 +02:00
frame.c Merge commit '1aa24df74c052a73175c43e57d35b4835e537ec8' 2015-10-03 09:52:39 +02:00
frame.h Merge commit '1aa24df74c052a73175c43e57d35b4835e537ec8' 2015-10-03 09:52:39 +02:00
hash.c
hash.h
hmac.c lavu/hmac: remove deprecated type ids 2015-09-05 18:07:20 +02:00
hmac.h lavu/hmac: remove deprecated type ids 2015-09-05 18:07:20 +02:00
imgutils.c Merge commit '2268db2cd052674fde55c7d48b7a5098ce89b4ba' 2015-09-08 16:35:28 +02:00
imgutils.h Replace a few leftover instances of enum PixelFormat with enum AVPixelFormat 2015-03-17 23:53:33 +02:00
integer.c
integer.h
internal.h avutil: Move av_rint64_clip_* to internal.h 2015-11-15 03:47:09 +01:00
intfloat.h
intmath.c intmath: remove av_ctz. 2015-10-11 18:03:10 -04:00
intmath.h avutil/intmath: fix undefined behavior in ff_ctzll_c() 2015-10-22 14:10:42 +02:00
intreadwrite.h
lfg.c
lfg.h
libavutil.v
libm.h avutil/libm: correct isnan, isinf compat hacks 2015-11-21 08:51:49 -05:00
lls.c lavu: Drop deprecated private lls functions 2015-08-28 16:04:27 +02:00
lls.h lavu: Drop deprecated private lls functions 2015-08-28 16:04:27 +02:00
log2_tab.c
log.c avutil/log: fix zero length gnu_printf format string warning 2015-09-17 18:58:01 +02:00
log.h avutil/log: modify AV_LOG_MAX_OFFSET for AV_LOG_TRACE 2015-06-26 14:02:35 +02:00
lzo.c
lzo.h
macros.h
Makefile avutil: install des.h, rc4.h and tree.h as public headers 2015-10-21 00:23:10 +02:00
mathematics.c avutil/mathematics: make av_gcd more robust 2015-10-29 19:13:55 -04:00
mathematics.h avutil/mathematics: correct documentation for av_gcd 2015-10-30 13:42:04 -04:00
md5.c lavu: Drop deprecated context size variables 2015-08-28 16:04:27 +02:00
md5.h lavu: Drop deprecated context size variables 2015-08-28 16:04:27 +02:00
mem_internal.h avutil/mem_internal: add missing header includes 2015-07-13 21:54:15 -03:00
mem.c avutil/mem: Add av_fast_mallocz() 2015-11-18 22:05:16 +01:00
mem.h avutil/mem: Add av_fast_mallocz() 2015-11-18 22:05:16 +01:00
motion_vector.h
murmur3.c
murmur3.h
opencl_internal.c
opencl_internal.h avutil/opencl_internal: add av_warn_unused_result 2015-10-31 10:40:54 -04:00
opencl.c opencl: Use "opencl" as log context name 2015-10-17 01:16:50 -07:00
opencl.h opencl: Force the use of 1.2 APIs 2015-10-17 01:16:50 -07:00
opt.c lavu/opt: enhance printing durations. 2015-11-07 16:04:09 +01:00
opt.h lavu/opt: add flag to return NULL when applicable in av_opt_get 2015-10-09 04:12:57 -05:00
parseutils.c Merge commit '219b39a71a5694b1c14a07b86477f665a5b6849b' 2015-07-21 16:55:39 +02:00
parseutils.h Merge commit '27f274628234c1f934b9a6a6380ed567c1b4ceae' 2015-04-07 20:46:25 +02:00
pca.c avutil/pca: Check for av_malloc* failures 2015-03-30 04:37:42 +02:00
pca.h
pixdesc.c pixfmt: Add new SMPTE color primaries and transfer characteristic values 2015-09-17 10:31:43 +02:00
pixdesc.h Merge commit '7b02cb29d9d60cdd5ef321043d11d02023e7dc8f' 2015-09-12 13:03:04 +02:00
pixelutils.c
pixelutils.h
pixfmt.h pixfmt: Add new SMPTE color primaries and transfer characteristic values 2015-09-17 10:31:43 +02:00
qsort.h avutil/qsort: use the do while form for AV_QSORT, AV_MSORT 2015-10-23 08:41:16 -04:00
random_seed.c
random_seed.h
rational.c avutil/rational: use frexp rather than ad-hoc log to get floating point exponent 2015-10-30 23:18:43 -04:00
rational.h avutil: Add av_q2intfloat() 2015-05-26 18:31:53 +02:00
rc4.c avutil: use EINVAL instead of -1 for the return code of crypto related init functions 2015-10-18 15:17:58 -04:00
rc4.h avutil: undo FF_API_CRYPTO_CONTEXT deprecation 2015-10-16 19:13:38 -03:00
replaygain.h
reverse.c avutil: add ff_reverse as av_reverse replacement 2015-08-12 00:14:14 +02:00
ripemd.c avutil/ripemd: make rol macro more robust by adding parentheses 2015-10-28 21:42:15 -04:00
ripemd.h
samplefmt.c
samplefmt.h
sha512.c avutil: use EINVAL instead of -1 for the return code of crypto related init functions 2015-10-18 15:17:58 -04:00
sha512.h
sha.c avutil: use EINVAL instead of -1 for the return code of crypto related init functions 2015-10-18 15:17:58 -04:00
sha.h lavu: Drop deprecated context size variables 2015-08-28 16:04:27 +02:00
softfloat_tables.h avutil/softfloat_tables: add missing stdint.h include 2015-04-30 17:38:41 -03:00
softfloat.c avutil/softfloat: Include negative numbers in cmp/gt tests 2015-11-08 15:04:05 +01:00
softfloat.h avutil/softfloat: use abort() instead of av_assert0(0) 2015-11-10 13:37:24 -03:00
stereo3d.c
stereo3d.h
tea.c Add support for TEA (Tiny Encryption Algorithm) 2015-07-21 23:10:44 +02:00
tea.h Add support for TEA (Tiny Encryption Algorithm) 2015-07-21 23:10:44 +02:00
thread.h Merge commit 'c53e796f8b69799b7ad6d28fbab981d37edf1bc9' 2015-10-14 23:02:35 +02:00
threadmessage.c
threadmessage.h
time_internal.h
time.c
time.h
timecode.c timecode: Support HFR values 2015-10-26 15:05:26 +01:00
timecode.h
timer.h avutil/timer: give each printed value of STOP_TIMER a fixed length 2015-03-27 04:44:58 +01:00
timestamp.h
tree.c avutil/tree: clean up pointer incompatibility warnings 2015-10-25 12:45:10 -04:00
tree.h avutil/tree: Document the guaranteed ordering of compare arguments for av_tree_find() 2015-10-25 17:28:47 +01:00
twofish.c avutil: use EINVAL instead of -1 for the return code of crypto related init functions 2015-10-18 15:17:58 -04:00
twofish.h
utf8.c
utils.c lavu: disable wrong value check in get_version() upon api bump. 2015-08-18 15:57:20 -04:00
version.h avutil/mem: Add av_fast_mallocz() 2015-11-18 22:05:16 +01:00
wchar_filename.h avutil/wchar_filename: add av_warn_unused_result 2015-10-30 13:47:28 -04:00
x86_cpu.h
xga_font_data.c
xga_font_data.h
xtea.c avutil: undo FF_API_CRYPTO_CONTEXT deprecation 2015-10-16 19:13:38 -03:00
xtea.h Merge commit '1fc94724f1fd52944bb5ae571475c621da4b77a0' 2015-11-19 14:14:20 +00:00