Opened 14 years ago
Closed 13 years ago
#266 closed defect (needs_more_info)
ARM: "size of array is negative" in mpegvideo_arm.c
| Reported by: | Andrew Fernandes | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | avcodec |
| Version: | git-master | Keywords: | |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
Building for arm7 on the iPhone using branch bfd3b70ac3162f028bbfa5a8cd47d2715d49f77e:
ffmpeg/libavcodec/arm/mpegvideo_arm.c:28: error: size of array ‘x_Y_DC_SCALE’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:29: error: size of array ‘x_C_DC_SCALE’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:30: error: size of array ‘x_AC_PRED’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:31: error: size of array ‘x_BLOCK_LAST_INDEX’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:32: error: size of array ‘x_INTER_SCANTAB_RASTER_END’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:33: error: size of array ‘x_H263_AIC’ is negative
Built correctly using older branch e6ec9212c543c77ab3ddab90ac52021cfbbdac17.
Specific configuration and build info is:
~/Desktop/Development/external/open/build/ffmpeg/iOS/armv7 ~/Desktop/Development/external/open + ../../../../repo/ffmpeg/configure --prefix=/Users/andrew/Desktop/Development/external/open/local --enable-static --disable-shared --disable-gpl --disable-version3 --disable-nonfree --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-avdevice --enable-avcodec --disable-avformat --disable-swscale --disable-postproc --disable-avfilter --disable-pthreads --disable-w32threads --disable-x11grab --disable-network --disable-gray --disable-swscale-alpha --disable-fastdiv --disable-small --enable-aandct --enable-dct --enable-fft --enable-golomb --enable-huffman --enable-lpc --enable-mdct --enable-rdft --disable-vaapi --disable-vdpau --disable-dxva2 --enable-runtime-cpudetect --enable-hardcoded-tables --enable-memalign-hack --disable-everything --enable-cross-compile --cross-prefix=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/../../usr/bin/ --arch=arm --target-os=darwin '--extra-cflags=-arch armv7 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk' '--extra-ldflags=-arch armv7 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk' --cpu=cortex-a8 --libdir=/Users/andrew/Desktop/Development/external/open/local/lib/iOS/armv7 install prefix /Users/andrew/Desktop/Development/external/open/local source path /Users/andrew/Desktop/Development/external/open/repo/ffmpeg C compiler /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/../../usr/bin/gcc ARCH arm (cortex-a8) big-endian no runtime cpu detection yes ARMv5TE enabled yes ARMv6 enabled yes ARMv6T2 enabled yes ARM VFP enabled yes IWMMXT enabled no NEON enabled yes debug symbols yes strip symbols yes optimizations yes static yes shared no postprocessing support no new filter support no network support no threading support no SDL support no Sun medialib support no AVISynth enabled no libcelt enabled no frei0r enabled no libdc1394 support no libdirac enabled no libfaac enabled no libgsm enabled no libmp3lame enabled no libnut enabled no libopencore-amrnb support no libopencore-amrwb support no libopencv support no libopenjpeg enabled no librtmp enabled no libschroedinger enabled no libspeex enabled no libtheora enabled no libva enabled no libvo-aacenc support no libvo-amrwbenc support no libvorbis enabled no libvpx enabled no libx264 enabled no libxavs enabled no libxvid enabled no zlib enabled no bzlib enabled no Enabled decoders: Enabled encoders: Enabled hwaccels: Enabled parsers: Enabled demuxers: Enabled muxers: Enabled protocols: Enabled filters: Enabled bsfs: Enabled indevs: Enabled outdevs: License: LGPL version 2.1 or later Creating config.mak and config.h... WARNING: /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/../../usr/bin/pkg-config not found, library detection may fail. WARNING: Compiler does not indicate floating-point ABI, guessing soft. + make install CC libavcodec/aandcttab.o CC libavcodec/allcodecs.o AS libavcodec/arm/dsputil_arm.o AS libavcodec/arm/dsputil_armv6.o CC libavcodec/arm/dsputil_init_arm.o CC libavcodec/arm/dsputil_init_armv5te.o CC libavcodec/arm/dsputil_init_armv6.o CC libavcodec/arm/dsputil_init_neon.o CC libavcodec/arm/dsputil_init_vfp.o AS libavcodec/arm/dsputil_neon.o AS libavcodec/arm/dsputil_vfp.o CC libavcodec/arm/fft_fixed_init_arm.o AS libavcodec/arm/fft_fixed_neon.o CC libavcodec/arm/fft_init_arm.o AS libavcodec/arm/fft_neon.o CC libavcodec/arm/fmtconvert_init_arm.o AS libavcodec/arm/fmtconvert_neon.o AS libavcodec/arm/fmtconvert_vfp.o AS libavcodec/arm/int_neon.o AS libavcodec/arm/jrevdct_arm.o AS libavcodec/arm/mdct_fixed_neon.o AS libavcodec/arm/mdct_neon.o CC libavcodec/arm/mpegvideo_arm.o ffmpeg/libavcodec/arm/mpegvideo_arm.c:28: error: size of array ‘x_Y_DC_SCALE’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:29: error: size of array ‘x_C_DC_SCALE’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:30: error: size of array ‘x_AC_PRED’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:31: error: size of array ‘x_BLOCK_LAST_INDEX’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:32: error: size of array ‘x_INTER_SCANTAB_RASTER_END’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:33: error: size of array ‘x_H263_AIC’ is negative make: *** [libavcodec/arm/mpegvideo_arm.o] Error 1
Change History (13)
comment:1 by , 13 years ago
comment:2 by , 13 years ago
Maybe you could find out which revission exactly broke it with git bisect.
We dont have a iphone build environment and plain gcc for armv7 has no problems
comment:3 by , 13 years ago
Okay - it turns out that there are two errors here.
First, it was commit dba9852935f31d81d16bf26ee21d164d5d5f5764 that broke "gas-preprocessor" for Apple. Fortunately, I found that aumuell's fork has been patched to fix this (https://github.com/aumuell/gas-preprocessor) but so far neither yuvi's or mansr's forks of gas-preprocessor have pulled in the required patches.
Now, however, we get back to the original error:
CC libavcodec/arm/mpegvideo_arm.o ffmpeg/libavcodec/arm/mpegvideo_arm.c:28: error: size of array ‘x_Y_DC_SCALE’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:29: error: size of array ‘x_C_DC_SCALE’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:30: error: size of array ‘x_AC_PRED’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:31: error: size of array ‘x_BLOCK_LAST_INDEX’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:32: error: size of array ‘x_INTER_SCANTAB_RASTER_END’ is negative ffmpeg/libavcodec/arm/mpegvideo_arm.c:33: error: size of array ‘x_H263_AIC’ is negative
Using git-bisect to track that down, now.
comment:4 by , 13 years ago
Okay - I've tracked it down. The "size of array '...' is negative" was originally caused by commit 8c51620f219db0f408d2833c3e5d56cedaf0d95a.
It isn't obvious to me why this breaks the mpegvideo_arm.c offsets, though.
comment:6 by , 13 years ago
Could you confirm that your problem is still reproducible with latest git head?
comment:7 by , 13 years ago
Yes, confirmed that "size of array ... is negative" in current head 9abbe8cc136e7fbc69004df3f1de9d54c40d969d of git://git.libav.org/libav.git.
comment:8 by , 13 years ago
Could you confirm that your problem is still reproducible with latest FFmpeg git head?
comment:9 by , 13 years ago
Makes it worse.
Building with git://git.videolan.org/ffmpeg.git current head f925b243818fa320b3c19e4e0554a07b49e8a2be.
Also using the "updated" gas-preporcessor patch from comment 3. Clearly there is some major breakage/divergence between FFmpeg and libav. Looks to me like that might be the problem.
Build log:
++ pwd + PREFIX=/Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/local + for dir in build local + rm -rf build + mkdir build + for dir in build local + rm -rf local + mkdir local + FFMPEG_CONFIGURE_COMMON=' --prefix=/Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/local --enable-static --disable-shared --disable-gpl --disable-version3 --disable-nonfree --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-avdevice --enable-avcodec --disable-avformat --disable-swscale --disable-postproc --disable-avfilter --disable-pthreads --disable-w32threads --disable-x11grab --disable-network --disable-gray --disable-swscale-alpha --enable-fastdiv --disable-small --enable-aandct --enable-dct --enable-fft --enable-golomb --enable-huffman --enable-lpc --enable-mdct --enable-rdft --disable-vaapi --disable-vdpau --disable-dxva2 --enable-runtime-cpudetect --enable-hardcoded-tables --enable-memalign-hack --disable-everything' + ISYSROOT=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk ++ pwd + export PATH=/opt/local/bin:/opt/local/sbin:/Library/Frameworks/Maple.framework/Versions/Current/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/texbin:/usr/X11/bin:/Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/gas-preprocessor + PATH=/opt/local/bin:/opt/local/sbin:/Library/Frameworks/Maple.framework/Versions/Current/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/texbin:/usr/X11/bin:/Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/gas-preprocessor + ARCH_FLAG='-arch armv7' + mkdir -p local/lib/iOS/armv7 + mkdir -p build/ffmpeg/iOS/armv7 + pushd build/ffmpeg/iOS/armv7 ~/Desktop/Development/external/open/TMP_ffmpeg/build/ffmpeg/iOS/armv7 ~/Desktop/Development/external/open/TMP_ffmpeg + ../../../../repo/ffmpeg/configure --prefix=/Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/local --enable-static --disable-shared --disable-gpl --disable-version3 --disable-nonfree --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-avdevice --enable-avcodec --disable-avformat --disable-swscale --disable-postproc --disable-avfilter --disable-pthreads --disable-w32threads --disable-x11grab --disable-network --disable-gray --disable-swscale-alpha --enable-fastdiv --disable-small --enable-aandct --enable-dct --enable-fft --enable-golomb --enable-huffman --enable-lpc --enable-mdct --enable-rdft --disable-vaapi --disable-vdpau --disable-dxva2 --enable-runtime-cpudetect --enable-hardcoded-tables --enable-memalign-hack --disable-everything --enable-cross-compile --cross-prefix=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/../../usr/bin/ --arch=arm --target-os=darwin '--extra-cflags=-arch armv7 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk' '--extra-ldflags=-arch armv7 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk' --cpu=cortex-a8 --libdir=/Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/local/lib/iOS/armv7 install prefix /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/local source path /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg C compiler /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/../../usr/bin/gcc ARCH arm (cortex-a8) big-endian no runtime cpu detection yes ARMv5TE enabled yes ARMv6 enabled yes ARMv6T2 enabled yes ARM VFP enabled yes IWMMXT enabled no NEON enabled yes debug symbols yes strip symbols yes optimize for size no optimizations yes static yes shared no postprocessing support no new filter support no network support no threading support no SDL support no Sun medialib support no AVISynth enabled no libcelt enabled no frei0r enabled no libdc1394 support no libdirac enabled no libfaac enabled no libgsm enabled no libmp3lame enabled no libnut enabled no libopencore-amrnb support no libopencore-amrwb support no libopencv support no libopenjpeg enabled no librtmp enabled no libschroedinger enabled no libspeex enabled no libtheora enabled no libva enabled no libvo-aacenc support no libvo-amrwbenc support no libvorbis enabled no libvpx enabled no libx264 enabled no libxavs enabled no libxvid enabled no zlib enabled no bzlib enabled no Enabled decoders: Enabled encoders: Enabled hwaccels: Enabled parsers: Enabled demuxers: Enabled muxers: Enabled protocols: Enabled filters: Enabled bsfs: Enabled indevs: Enabled outdevs: License: LGPL version 2.1 or later Creating config.mak and config.h... WARNING: /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/../../usr/bin/pkg-config not found, library detection may fail. WARNING: Compiler does not indicate floating-point ABI, guessing soft. + make install CC libavcodec/aandcttab.o CC libavcodec/allcodecs.o AS libavcodec/arm/dsputil_arm.o AS libavcodec/arm/dsputil_armv6.o CC libavcodec/arm/dsputil_init_arm.o CC libavcodec/arm/dsputil_init_armv5te.o CC libavcodec/arm/dsputil_init_armv6.o CC libavcodec/arm/dsputil_init_neon.o CC libavcodec/arm/dsputil_init_vfp.o AS libavcodec/arm/dsputil_neon.o AS libavcodec/arm/dsputil_vfp.o CC libavcodec/arm/fft_fixed_init_arm.o AS libavcodec/arm/fft_fixed_neon.o CC libavcodec/arm/fft_init_arm.o AS libavcodec/arm/fft_neon.o CC libavcodec/arm/fmtconvert_init_arm.o AS libavcodec/arm/fmtconvert_neon.o AS libavcodec/arm/fmtconvert_vfp.o AS libavcodec/arm/int_neon.o AS libavcodec/arm/jrevdct_arm.o AS libavcodec/arm/mdct_fixed_neon.o AS libavcodec/arm/mdct_neon.o CC libavcodec/arm/mpegvideo_arm.o CC libavcodec/arm/mpegvideo_armv5te.o AS libavcodec/arm/mpegvideo_armv5te_s.o AS libavcodec/arm/mpegvideo_neon.o AS libavcodec/arm/rdft_neon.o AS libavcodec/arm/simple_idct_arm.o AS libavcodec/arm/simple_idct_armv5te.o /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:471:bad expression -- `movs a2,a2,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:478:bad expression -- `movs ip,ip,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:486:bad expression -- `movs a3,a3,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:493:bad expression -- `movs a4,a4,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:511:bad expression -- `movs a2,a2,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:518:bad expression -- `movs ip,ip,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:529:bad expression -- `movs a2,a3,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:536:bad expression -- `movs a4,a4,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:549:bad expression -- `movs a2,a2,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:556:bad expression -- `movs ip,ip,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:567:bad expression -- `movs a2,a3,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:574:bad expression -- `movs a4,a4,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:587:bad expression -- `movs a2,a2,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:594:bad expression -- `movs ip,ip,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:603:bad expression -- `movs a2,a3,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:610:bad expression -- `movs a4,a4,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:748:shift expression expected -- `adds a2,v1,a2,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:756:shift expression expected -- `adds v1,v1,ip,lsr,#8' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:771:shift expression expected -- `adds a3,a2,a3,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:778:shift expression expected -- `adds a4,a4,ip,lsr,#8' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:796:shift expression expected -- `adds a2,v3,a2,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:804:shift expression expected -- `adds v3,v3,ip,lsr,#8' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:817:shift expression expected -- `adds a3,a2,a3,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:824:shift expression expected -- `adds a4,a4,ip,lsr,#8' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:840:shift expression expected -- `adds a2,v3,a2,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:848:shift expression expected -- `adds v3,v3,ip,lsr,#8' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:861:shift expression expected -- `adds a3,a2,a3,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:868:shift expression expected -- `adds a4,a4,ip,lsr,#8' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:884:shift expression expected -- `adds a2,v3,a2,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:892:shift expression expected -- `adds v3,v3,ip,lsr,#8' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:905:shift expression expected -- `adds a3,a2,a3,asr,#20' /Users/andrew/Desktop/Development/external/open/TMP_ffmpeg/repo/ffmpeg/libavcodec/arm/simple_idct_armv5te.S:912:shift expression expected -- `adds a4,a4,ip,lsr,#8' make: *** [libavcodec/arm/simple_idct_armv5te.o] Error 1
comment:10 by , 13 years ago
Do you agree that the original problem you reported was fixed and that you found another problem (that again, unfortunately, can only be reproduced with the iPhone SDK)?
If yes, please consider opening a new ticket, it would be great (and makes a fix likely) if you could run git bisect again (together with make libavcodec/arm/simple_idct_armv5te.o) to find the revision that broke the compilation of simple_idct_armv5te.S
comment:11 by , 13 years ago
Uhhhmm... I have no idea if the originally-reported problem is fixed or not. Whether you mark it as fixed or not in the tracker is your call.
Personally, this should be a meta-bug saying "ffmpeg will not compile on iPhone".
I'm a little confused here as to whether this is an ffmpeg or libav problem. I know that there is some sort of politics going on here, but I have no idea what they are. I emailed Måns Rullgård since he committed all the ARM stuff, and he told me to submit a bug to libav since that was where "all the development was happening, anyway".
So I submitted that bug, and it was subsequently frozen as they changed bug-trackers.
I love ffmpeg and think that it and its forks are frantastic, and I'm very grateful for the work that has gone into them. However, if the iphone is not a supported target, it is simply not supported. I will likely just rip out the parts of arm assembly that I need (appropriately licensed, of course) and leave it at that. (All I really need is the fft and rdft stuff, anyway).
I wish I could do more, but I simply do not have the time.
comment:12 by , 13 years ago
| Status: | new → open |
|---|
You reported a problem (here, on the FFmpeg bug tracker) that the compilation of mpegvideo_arm.c fails.
From a later report I conclude that this problem was fixed (the line "CC libavcodec/arm/mpegvideo_arm.o" is not followed by problems, but you can type "make libavcodec/arm/mpegvideo_arm.o" to make sure).
It seems that now, the compilation of libavcodec/arm/simple_idct_armv5te.S fails.
I can assure you we want to support the iPhone SDK, but that probably will also need a bit of your time.
Could you test with latest FFmpeg git HEAD, confirm that compilation of mpegvideo_arm.c succeeds and compilation of simple_idct_armv5te.S fails? (You could also try "touch libavcodec/arm/simple_idct_armv5te.o && make" to find out if compilation fails for any other files.)
comment:13 by , 13 years ago
| Resolution: | → needs_more_info |
|---|---|
| Status: | open → closed |
Please reopen if more information is available.
Note:
See TracTickets
for help on using tickets.
There is a patch for Google's chromium that used to apply, but no longer works. There have been changes made such that macro-expansion requires that these be hard-coded integers, it seems.