[FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Helmut K. C. Tessarek]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Hello,

The following 2 commits break the build with a deployment target of 10.9 on
macOS.

I agree that 10.9 is quite old, but the rest of the code worked perfectly
fine, so were those 2 commits really necessary?

* 4ac869ca2a | 2021-12-18 11:57:31 -0800 | avfilter: add
vf_yadif_videotoolbox (Aman Karmani)
* ecee6af8bd | 2021-12-18 11:55:47 -0800 | avfilter: add metal utilities
(Aman Karmani)

Can you make that code conditional?


The error messages I get during the compile run are:

In file included from libavfilter/metal/utils.m:20:
./libavfilter/metal/utils.h:25:43: error: 'MTLDevice' is only available on
macOS 10.11 or newer [-Werror,-Wunguarded-availability]
void ff_metal_compute_encoder_dispatch(id<MTLDevice> device,
                                          ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/
Metal.framework/Headers/MTLCaptureScope.h:14:11:
note: 'MTLDevice' has been marked as being introduced in macOS
      10.11 here, but the deployment target is macOS 10.9.0
@protocol MTLDevice;
          ^
./libavfilter/metal/utils.h:25:6: note: annotate
'ff_metal_compute_encoder_dispatch' with an availability attribute to
silence this warning
void ff_metal_compute_encoder_dispatch(id<MTLDevice> device,
     ^
./libavfilter/metal/utils.h:26:43: error: 'MTLComputePipelineState' is only
available on macOS 10.11 or newer [-Werror,-Wunguarded-availability]
                                       id<MTLComputePipelineState> pipeline,
                                          ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/
Metal.framework/Headers/MTLArgumentEncoder.h:17:11:
note: 'MTLComputePipelineState' has been marked as being
      introduced in macOS 10.11 here, but the deployment target is macOS 10.9.
0
@protocol MTLComputePipelineState;
          ^

[snip - way too many messages to paste them all]

Cheers,
  K. C.

- -- 
regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944

/*
   Thou shalt not follow the NULL pointer for chaos and madness
   await thee at its end.
*/
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Ridley Combs]

Could you try with this patch and let me know if it works for you then? https://gist.github.com/7362df8a689c41b9174ac50fdeda3e43 <https://gist.github.com/7362df8a689c41b9174ac50fdeda3e43>

If you can test actual deployment on a 10.9 or 10.10 system that'd be great.

> On Dec 20, 2021, at 15:30, Helmut K. C. Tessarek <tessarek@evermeet.cx> wrote:
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
> 
> Hello,
> 
> The following 2 commits break the build with a deployment target of 10.9 on
> macOS.
> 
> I agree that 10.9 is quite old, but the rest of the code worked perfectly
> fine, so were those 2 commits really necessary?
> 
> * 4ac869ca2a | 2021-12-18 11:57:31 -0800 | avfilter: add
> vf_yadif_videotoolbox (Aman Karmani)
> * ecee6af8bd | 2021-12-18 11:55:47 -0800 | avfilter: add metal utilities
> (Aman Karmani)
> 
> Can you make that code conditional?
> 
> 
> The error messages I get during the compile run are:
> 
> In file included from libavfilter/metal/utils.m:20:
> ./libavfilter/metal/utils.h:25:43: error: 'MTLDevice' is only available on
> macOS 10.11 or newer [-Werror,-Wunguarded-availability]
> void ff_metal_compute_encoder_dispatch(id<MTLDevice> device,
>                                          ^
> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/
> Metal.framework/Headers/MTLCaptureScope.h:14:11:
> note: 'MTLDevice' has been marked as being introduced in macOS
>      10.11 here, but the deployment target is macOS 10.9.0
> @protocol MTLDevice;
>          ^
> ./libavfilter/metal/utils.h:25:6: note: annotate
> 'ff_metal_compute_encoder_dispatch' with an availability attribute to
> silence this warning
> void ff_metal_compute_encoder_dispatch(id<MTLDevice> device,
>     ^
> ./libavfilter/metal/utils.h:26:43: error: 'MTLComputePipelineState' is only
> available on macOS 10.11 or newer [-Werror,-Wunguarded-availability]
>                                       id<MTLComputePipelineState> pipeline,
>                                          ^
> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/
> Metal.framework/Headers/MTLArgumentEncoder.h:17:11:
> note: 'MTLComputePipelineState' has been marked as being
>      introduced in macOS 10.11 here, but the deployment target is macOS 10.9.
> 0
> @protocol MTLComputePipelineState;
>          ^
> 
> [snip - way too many messages to paste them all]
> 
> Cheers,
>  K. C.
> 
> - -- 
> regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
> Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944
> 
> /*
>   Thou shalt not follow the NULL pointer for chaos and madness
>   await thee at its end.
> */
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> -----END PGP SIGNATURE-----
> _______________________________________________
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> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".

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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Helmut K. C. Tessarek]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Thanks for the rwply.

On 2021-12-20 18:25, Ridley Combs wrote:
> Could you try with this patch and let me know if it works for you then? 
> https://gist.github.com/7362df8a689c41b9174ac50fdeda3e43

I've applied your patch and get the following now:

CC	libavfilter/scale_eval.o
CC	libavfilter/scene_sad.o
libavfilter/metal/vf_yadif_videotoolbox.metal:47:1: error: constant sampler
must be declared constexpr
const sampler s(coord::pixel);
^
constexpr
libavfilter/metal/vf_yadif_videotoolbox.metal:122:14: error: use of
undeclared identifier 'max3'
    T diff = max3(tdiff0, tdiff1, tdiff2);
             ^
libavfilter/metal/vf_yadif_videotoolbox.metal:152:9: note: in instantiation
of function template specialization 'temporal_predictor<float>' requested here
        temporal_predictor(A.x, B.x, C.x, D.x, E.x, F.x,
        ^
libavfilter/metal/vf_yadif_videotoolbox.metal:125:18: error: use of
undeclared identifier 'max3'
        T maxi = max3(p2 - p3, p2 - p1, min(p0 - p1, p4 - p3));
                 ^
libavfilter/metal/vf_yadif_videotoolbox.metal:126:18: error: use of
undeclared identifier 'min3'
        T mini = min3(p2 - p3, p2 - p1, max(p0 - p1, p4 - p3));
                 ^
libavfilter/metal/vf_yadif_videotoolbox.metal:217:12: error: no matching
function for call to 'temporal_predictor'
    return temporal_predictor(A, B, C, D, E, F, G, H, I, J, K, L,
           ^~~~~~~~~~~~~~~~~~
libavfilter/metal/vf_yadif_videotoolbox.metal:233:16: note: in instantiation
of function template specialization 'yadif_compute_temporal<float>'
requested here
        return yadif_compute_temporal(cur, prev, cur, next, next,
spatial_pred, params.skip_spatial_check, pos);
               ^
libavfilter/metal/vf_yadif_videotoolbox.metal:265:23: note: in instantiation
of function template specialization 'yadif<float>' requested here
        pred = float2(yadif<float>(dst, prev, cur, next, params, pos));
                      ^
libavfilter/metal/vf_yadif_videotoolbox.metal:108:3: note: candidate
template ignored: substitution failure [with T = float]
T temporal_predictor(T A, T B, T C, T D, T E, T F,
  ^
5 errors generated.
make: *** [libavfilter/metal/vf_yadif_videotoolbox.metal.air] Error 1
make: *** Waiting for unfinished jobs....
libavfilter/metal/utils.m:33:21: warning: instance method '-supportsFamily:'
not found (return type defaults to 'id') [-Wobjc-method-access]
        if ([device supportsFamily:MTLGPUFamilyCommon3]) {
                    ^~~~~~~~~~~~~~
libavfilter/metal/utils.m:33:36: error: use of undeclared identifier
'MTLGPUFamilyCommon3'
        if ([device supportsFamily:MTLGPUFamilyCommon3]) {
                                   ^
1 warning and 1 error generated.
make: *** [libavfilter/metal/utils.o] Error 1
Error compiling ffmpeg...

> If you can test actual deployment on a 10.9 or 10.10 system that'd be
> great.

Unfortunately I don't have a 10.9 or 10.10 system. I compile on macOS 1.14
with export MACOSX_DEPLOYMENT_TARGET=10.9

Cheers,
  K. C.

- -- 
regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944

/*
   Thou shalt not follow the NULL pointer for chaos and madness
   await thee at its end.
*/
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Ridley Combs]

Try with this as well: https://gist.github.com/499380d8ea03a86fc89eb48803ff7b2e <https://gist.github.com/499380d8ea03a86fc89eb48803ff7b2e>


> On Dec 20, 2021, at 17:49, Helmut K. C. Tessarek <tessarek@evermeet.cx> wrote:
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
> 
> Thanks for the rwply.
> 
> On 2021-12-20 18:25, Ridley Combs wrote:
>> Could you try with this patch and let me know if it works for you then? 
>> https://gist.github.com/7362df8a689c41b9174ac50fdeda3e43
> 
> I've applied your patch and get the following now:
> 
> CC	libavfilter/scale_eval.o
> CC	libavfilter/scene_sad.o
> libavfilter/metal/vf_yadif_videotoolbox.metal:47:1: error: constant sampler
> must be declared constexpr
> const sampler s(coord::pixel);
> ^
> constexpr
> libavfilter/metal/vf_yadif_videotoolbox.metal:122:14: error: use of
> undeclared identifier 'max3'
>    T diff = max3(tdiff0, tdiff1, tdiff2);
>             ^
> libavfilter/metal/vf_yadif_videotoolbox.metal:152:9: note: in instantiation
> of function template specialization 'temporal_predictor<float>' requested here
>        temporal_predictor(A.x, B.x, C.x, D.x, E.x, F.x,
>        ^
> libavfilter/metal/vf_yadif_videotoolbox.metal:125:18: error: use of
> undeclared identifier 'max3'
>        T maxi = max3(p2 - p3, p2 - p1, min(p0 - p1, p4 - p3));
>                 ^
> libavfilter/metal/vf_yadif_videotoolbox.metal:126:18: error: use of
> undeclared identifier 'min3'
>        T mini = min3(p2 - p3, p2 - p1, max(p0 - p1, p4 - p3));
>                 ^
> libavfilter/metal/vf_yadif_videotoolbox.metal:217:12: error: no matching
> function for call to 'temporal_predictor'
>    return temporal_predictor(A, B, C, D, E, F, G, H, I, J, K, L,
>           ^~~~~~~~~~~~~~~~~~
> libavfilter/metal/vf_yadif_videotoolbox.metal:233:16: note: in instantiation
> of function template specialization 'yadif_compute_temporal<float>'
> requested here
>        return yadif_compute_temporal(cur, prev, cur, next, next,
> spatial_pred, params.skip_spatial_check, pos);
>               ^
> libavfilter/metal/vf_yadif_videotoolbox.metal:265:23: note: in instantiation
> of function template specialization 'yadif<float>' requested here
>        pred = float2(yadif<float>(dst, prev, cur, next, params, pos));
>                      ^
> libavfilter/metal/vf_yadif_videotoolbox.metal:108:3: note: candidate
> template ignored: substitution failure [with T = float]
> T temporal_predictor(T A, T B, T C, T D, T E, T F,
>  ^
> 5 errors generated.
> make: *** [libavfilter/metal/vf_yadif_videotoolbox.metal.air] Error 1
> make: *** Waiting for unfinished jobs....
> libavfilter/metal/utils.m:33:21: warning: instance method '-supportsFamily:'
> not found (return type defaults to 'id') [-Wobjc-method-access]
>        if ([device supportsFamily:MTLGPUFamilyCommon3]) {
>                    ^~~~~~~~~~~~~~
> libavfilter/metal/utils.m:33:36: error: use of undeclared identifier
> 'MTLGPUFamilyCommon3'
>        if ([device supportsFamily:MTLGPUFamilyCommon3]) {
>                                   ^
> 1 warning and 1 error generated.
> make: *** [libavfilter/metal/utils.o] Error 1
> Error compiling ffmpeg...
> 
>> If you can test actual deployment on a 10.9 or 10.10 system that'd be
>> great.
> 
> Unfortunately I don't have a 10.9 or 10.10 system. I compile on macOS 1.14
> with export MACOSX_DEPLOYMENT_TARGET=10.9
> 
> Cheers,
>  K. C.
> 
> - -- 
> regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
> Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944
> 
> /*
>   Thou shalt not follow the NULL pointer for chaos and madness
>   await thee at its end.
> */
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Christopher Degawa]

On Mon, Dec 20, 2021 at 3:31 PM Helmut K. C. Tessarek <tessarek@evermeet.cx>
wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
>
> Hello,
>
> The following 2 commits break the build with a deployment target of 10.9 on
> macOS.
>
> I agree that 10.9 is quite old, but the rest of the code worked perfectly
> fine, so were those 2 commits really necessary?
>
> * 4ac869ca2a | 2021-12-18 11:57:31 -0800 | avfilter: add
> vf_yadif_videotoolbox (Aman Karmani)
> * ecee6af8bd | 2021-12-18 11:55:47 -0800 | avfilter: add metal utilities
> (Aman Karmani)
>
> Can you make that code conditional?
>

To tack on to this, I currently am also experiencing issues with those
commits, but am running on 10.15, however, my issue isn't necessarily that
the code isn't compiling, but rather it seems it's failing to link with

xcrun metal libavfilter/metal/vf_yadif_videotoolbox.metal -o
libavfilter/metal/vf_yadif_videotoolbox.metal.air
air-lld: error: library not found for -lmetal_rt_osx_air2.2
metal: error: air-lld command failed with exit code 1 (use -v to see
invocation)
make: *** [libavfilter/metal/vf_yadif_videotoolbox.metal.air] Error 1

currently running a fresh clone of FFmpeg and only ran ./configure and then
make. If I run

xcrun metal
-L/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/lib/clang/31001.143/lib/darwin
libavfilter/metal/vf_yadif_videotoolbox.metal -o
libavfilter/metal/vf_yadif_videotoolbox.metal.air

then it succeeds, I don't think there's currently a way to export LDFLAGS
to metal as the rule for it is a simple `$(METALCC) $< -o $@`

So I've exported "LIBRARY_PATH" to
"/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/lib/clang/31001.143/lib/darwin"
in the profile since I can't easily update that on all of my CI
configurations.
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Helmut K. C. Tessarek]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

On 2021-12-20 19:06, Ridley Combs wrote:
> Try with this as well:
> https://gist.github.com/499380d8ea03a86fc89eb48803ff7b2e

Getting closer...

CC	libavfilter/generate_wave_table.o
CC	libavfilter/graphdump.o
CC	libavfilter/graphparser.o
CC	libavfilter/lavfutils.o
CC	libavfilter/lswsutils.o
OBJCC	libavfilter/metal/utils.o
HOSTLD	ffbuild/bin2c
xcrun metal libavfilter/metal/vf_yadif_videotoolbox.metal -o
libavfilter/metal/vf_yadif_videotoolbox.metal.air
CC	libavfilter/motion_estimation.o
CC	libavfilter/pthread.o
CC	libavfilter/qp_table.o
CC	libavfilter/scale_eval.o
CC	libavfilter/scene_sad.o
LLVM ERROR: Error opening
'/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchai
n/usr/metal/ios/bin/../lib/clang/902.9/lib/darwin/libmetal_rt_osx_air1.8.a':
No such file or directory!
metal: error: metallib command failed with exit code 1 (use -v to see
invocation)
make: *** [libavfilter/metal/vf_yadif_videotoolbox.metal.air] Error 1
make: *** Waiting for unfinished jobs....
libavfilter/metal/utils.m:33:21: warning: instance method '-supportsFamily:'
not found (return type defaults to 'id') [-Wobjc-method-access]
        if ([device supportsFamily:MTLGPUFamilyCommon3]) {
                    ^~~~~~~~~~~~~~
libavfilter/metal/utils.m:33:36: error: use of undeclared identifier
'MTLGPUFamilyCommon3'
        if ([device supportsFamily:MTLGPUFamilyCommon3]) {
                                   ^
1 warning and 1 error generated.
make: *** [libavfilter/metal/utils.o] Error 1



- -- 
regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944

/*
   Thou shalt not follow the NULL pointer for chaos and madness
   await thee at its end.
*/
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Aman Karmani]

On Mon, Dec 20, 2021 at 4:12 PM Christopher Degawa <ccom@randomderp.com>
wrote:

> On Mon, Dec 20, 2021 at 3:31 PM Helmut K. C. Tessarek <
> tessarek@evermeet.cx>
> wrote:
>
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA512
> >
> > Hello,
> >
> > The following 2 commits break the build with a deployment target of 10.9
> on
> > macOS.
> >
> > I agree that 10.9 is quite old, but the rest of the code worked perfectly
> > fine, so were those 2 commits really necessary?
> >
> > * 4ac869ca2a | 2021-12-18 11:57:31 -0800 | avfilter: add
> > vf_yadif_videotoolbox (Aman Karmani)
> > * ecee6af8bd | 2021-12-18 11:55:47 -0800 | avfilter: add metal utilities
> > (Aman Karmani)
> >
> > Can you make that code conditional?
> >
>
> To tack on to this, I currently am also experiencing issues with those
> commits, but am running on 10.15, however, my issue isn't necessarily that
> the code isn't compiling, but rather it seems it's failing to link with
>
> xcrun metal libavfilter/metal/vf_yadif_videotoolbox.metal -o
> libavfilter/metal/vf_yadif_videotoolbox.metal.air
> air-lld: error: library not found for -lmetal_rt_osx_air2.2
> metal: error: air-lld command failed with exit code 1 (use -v to see
> invocation)
> make: *** [libavfilter/metal/vf_yadif_videotoolbox.metal.air] Error 1
>
> currently running a fresh clone of FFmpeg and only ran ./configure and then
> make. If I run
>
> xcrun metal
>
> -L/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/lib/clang/31001.143/lib/darwin
> libavfilter/metal/vf_yadif_videotoolbox.metal -o
> libavfilter/metal/vf_yadif_videotoolbox.metal.air
>
> then it succeeds, I don't think there's currently a way to export LDFLAGS
> to metal as the rule for it is a simple `$(METALCC) $< -o $@`
>
> So I've exported "LIBRARY_PATH" to
>
> "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/lib/clang/31001.143/lib/darwin"
> in the profile since I can't easily update that on all of my CI
> configurations.
>

Could you share the output of `xcrun metal -v`



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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Christopher Degawa]

On Mon, Dec 20, 2021 at 6:39 PM Aman Karmani <ffmpeg@tmm1.net> wrote:

>
> Could you share the output of `xcrun metal -v`
>
>
xcrun metal -v
Apple LLVM version 31001.43 (metalfe-31001.43)
Target: air64-apple-darwin19.6.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/ios/bin
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Aman Karmani]

On Mon, Dec 20, 2021 at 4:43 PM Christopher Degawa <ccom@randomderp.com>
wrote:

> On Mon, Dec 20, 2021 at 6:39 PM Aman Karmani <ffmpeg@tmm1.net> wrote:
>
> >
> > Could you share the output of `xcrun metal -v`
> >
> >
> xcrun metal -v
> Apple LLVM version 31001.43 (metalfe-31001.43)
> Target: air64-apple-darwin19.6.0
> Thread model: posix
> InstalledDir:
>
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/ios/bin
>

Thanks. Here's mine:

Apple metal version 31001.332 (metalfe-31001.332)
Target: air64-apple-darwin20.6.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/bin

Somehow yours is defaulting to the iOS binary. Do you have some environment
variable set that could be causing this?

Aman


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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Helmut K. C. Tessarek]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512



On 2021-12-20 19:38, Aman Karmani wrote:
> Could you share the output of `xcrun metal -v`

$ xcrun metal -v
Apple LLVM version 902.9 (metalfe-902.9.61)
Target: air64-apple-darwin18.7.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain
/usr/metal/ios/bin

- -- 
regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944

/*
   Thou shalt not follow the NULL pointer for chaos and madness
   await thee at its end.
*/
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Helmut K. C. Tessarek]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

On 2021-12-20 19:50, Aman Karmani wrote:
> Somehow yours is defaulting to the iOS binary. Do you have some
> environment variable set that could be causing this?

Even though this question was addressed to Christopher, my output also shows
ios. And I certainly do not have anything set or exported that could have to
do with ios. I never touch any ios or ipados crap.


- -- 
regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944

/*
   Thou shalt not follow the NULL pointer for chaos and madness
   await thee at its end.
*/
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Aman Karmani]

On Mon, Dec 20, 2021 at 4:52 PM Helmut K. C. Tessarek <tessarek@evermeet.cx>
wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
>
>
>
> On 2021-12-20 19:38, Aman Karmani wrote:
> > Could you share the output of `xcrun metal -v`
>
> $ xcrun metal -v
> Apple LLVM version 902.9 (metalfe-902.9.61)
> Target: air64-apple-darwin18.7.0
> Thread model: posix
> InstalledDir:
>
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain
> /usr/metal/ios/bin
>

I am able to get the ios binary too, but only when I request is explicitly
as follows:

$ xcrun -sdk $(xcodebuild -sdk iphoneos -version Path) metal -v

Apple metal version 31001.325 (metalfe-31001.325)
Target: air64-apple-darwin20.6.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/ios/bin


>
> - --
> regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
> Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944
>
> /*
>    Thou shalt not follow the NULL pointer for chaos and madness
>    await thee at its end.
> */
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>
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> =ZwX1
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>
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Helmut K. C. Tessarek]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

On 2021-12-20 19:11, Christopher Degawa wrote:
> So I've exported "LIBRARY_PATH" to

I'm sorry to say, this is a workaround but hardly a solution.

Before these 2 commits all worked perfectly. Now it doesn't. Tweaking the
build env is not a solution.
Next time someone commits something, are we supposed to tweak it again?
Where does it end?


- -- 
regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944

/*
   Thou shalt not follow the NULL pointer for chaos and madness
   await thee at its end.
*/
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Christopher Degawa]

On Mon, Dec 20, 2021 at 6:55 PM Aman Karmani <ffmpeg@tmm1.net> wrote:

> On Mon, Dec 20, 2021 at 4:52 PM Helmut K. C. Tessarek <
> tessarek@evermeet.cx>
> wrote:
>
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA512
> >
> >
> >
> > On 2021-12-20 19:38, Aman Karmani wrote:
> > > Could you share the output of `xcrun metal -v`
> >
> > $ xcrun metal -v
> > Apple LLVM version 902.9 (metalfe-902.9.61)
> > Target: air64-apple-darwin18.7.0
> > Thread model: posix
> > InstalledDir:
> >
> >
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain
> > /usr/metal/ios/bin
> >
>
> I am able to get the ios binary too, but only when I request is explicitly
> as follows:
>
> $ xcrun -sdk $(xcodebuild -sdk iphoneos -version Path) metal -v
>
> Apple metal version 31001.325 (metalfe-31001.325)
> Target: air64-apple-darwin20.6.0
> Thread model: posix
> InstalledDir:
>
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/ios/bin
>
>

Running `xcrun -sdk $(xcodebuild -sdk macosx -version Path) metal
libavfilter/metal/vf_yadif_videotoolbox.metal -o
libavfilter/metal/vf_yadif_videotoolbox.metal.air` does indeed compile
properly and properly shows macos

xcrun -sdk $(xcodebuild -sdk macosx -version Path) metal -v
Apple LLVM version 31001.143 (metalfe-31001.143)
Target: air64-apple-darwin19.6.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/bin

and I can indeed have FFmpeg configure and make with `./configure
--metalcc="xcrun -sdk $(xcodebuild -sdk macosx -version Path) metal"`, but
that would sorta ruin the whole idea of being able to simply clone and
./configure and make.

I tried looking online, and I guess maybe it's not something often asked as
I could not find relevant results to how to set the default xcrun sdk, so
I'm not sure how to make that -sdk flag apply to all xcruns regardless of
configure flags
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Aman Karmani]

On Mon, Dec 20, 2021 at 5:03 PM Helmut K. C. Tessarek <tessarek@evermeet.cx>
wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
>
> On 2021-12-20 19:11, Christopher Degawa wrote:
> > So I've exported "LIBRARY_PATH" to
>
> I'm sorry to say, this is a workaround but hardly a solution.
>

No one said this is the solution. We are just trying to figure out what is
going on, and this added information is very helpful in that effort.


> Before these 2 commits all worked perfectly. Now it doesn't. Tweaking the
> build env is not a solution.
> Next time someone commits something, are we supposed to tweak it again?
> Where does it end?
>

I'm not sure what your point is. If you are having trouble with those
commits, then you can use an older version?

Or you can compile with `./configure --disable-metal` to disable the new
feature.

Obviously the code worked on both my and Ridley's computers. If it didn't
work, we wouldn't have committed it.

Once we figure out why some computers are using the wrong metal binary,
then we can fix it and commit the fix to master as well.


>
>
> - --
> regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
> Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944
>
> /*
>    Thou shalt not follow the NULL pointer for chaos and madness
>    await thee at its end.
> */
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> =maKQ
> -----END PGP SIGNATURE-----
> _______________________________________________
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Aman Karmani]

On Mon, Dec 20, 2021 at 5:19 PM Christopher Degawa <ccom@randomderp.com>
wrote:

> On Mon, Dec 20, 2021 at 6:55 PM Aman Karmani <ffmpeg@tmm1.net> wrote:
>
> > On Mon, Dec 20, 2021 at 4:52 PM Helmut K. C. Tessarek <
> > tessarek@evermeet.cx>
> > wrote:
> >
> > > -----BEGIN PGP SIGNED MESSAGE-----
> > > Hash: SHA512
> > >
> > >
> > >
> > > On 2021-12-20 19:38, Aman Karmani wrote:
> > > > Could you share the output of `xcrun metal -v`
> > >
> > > $ xcrun metal -v
> > > Apple LLVM version 902.9 (metalfe-902.9.61)
> > > Target: air64-apple-darwin18.7.0
> > > Thread model: posix
> > > InstalledDir:
> > >
> > >
> >
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain
> > > /usr/metal/ios/bin
> > >
> >
> > I am able to get the ios binary too, but only when I request is
> explicitly
> > as follows:
> >
> > $ xcrun -sdk $(xcodebuild -sdk iphoneos -version Path) metal -v
> >
> > Apple metal version 31001.325 (metalfe-31001.325)
> > Target: air64-apple-darwin20.6.0
> > Thread model: posix
> > InstalledDir:
> >
> >
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/ios/bin
> >
> >
>
> Running `xcrun -sdk $(xcodebuild -sdk macosx -version Path) metal
> libavfilter/metal/vf_yadif_videotoolbox.metal -o
> libavfilter/metal/vf_yadif_videotoolbox.metal.air` does indeed compile
> properly and properly shows macos
>

Great, thanks for the confirmation!


>
> xcrun -sdk $(xcodebuild -sdk macosx -version Path) metal -v
> Apple LLVM version 31001.143 (metalfe-31001.143)
> Target: air64-apple-darwin19.6.0
> Thread model: posix
> InstalledDir:
>
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/bin
>
> and I can indeed have FFmpeg configure and make with `./configure
> --metalcc="xcrun -sdk $(xcodebuild -sdk macosx -version Path) metal"`, but
> that would sorta ruin the whole idea of being able to simply clone and
> ./configure and make.
>

Cool, that's also good to hear.

Does this work for you?

$ xcrun --sdk macosx metal -v

If so, then perhaps this patch is enough?

diff --git a/configure b/configure
index d9d41b2273..c4a59e0e3f 100755
--- a/configure
+++ b/configure
@@ -3842,8 +3842,8 @@ host_cc_default="gcc"
 doxygen_default="doxygen"
 install="install"
 ln_s_default="ln -s -f"
-metalcc_default="xcrun metal"
-metallib_default="xcrun metallib"
+metalcc_default="xcrun --sdk macosx metal"
+metallib_default="xcrun --sdk macosx metallib"
 nm_default="nm -g"
 pkg_config_default=pkg-config
 ranlib_default="ranlib"


>
> I tried looking online, and I guess maybe it's not something often asked as
> I could not find relevant results to how to set the default xcrun sdk, so
> I'm not sure how to make that -sdk flag apply to all xcruns regardless of
> configure flags
> _______________________________________________
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> ffmpeg-devel@ffmpeg.org
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>
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> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Ridley Combs]

The main thing that confuses me here is that this file does build for me when I use the iOS version of the metal compiler (tbh I didn't even know there was a difference between them).

What Xcode and macOS version are you on?

> On Dec 20, 2021, at 19:18, Christopher Degawa <ccom@randomderp.com> wrote:
> 
> On Mon, Dec 20, 2021 at 6:55 PM Aman Karmani <ffmpeg@tmm1.net <mailto:ffmpeg@tmm1.net>> wrote:
> 
>> On Mon, Dec 20, 2021 at 4:52 PM Helmut K. C. Tessarek <
>> tessarek@evermeet.cx>
>> wrote:
>> 
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA512
>>> 
>>> 
>>> 
>>> On 2021-12-20 19:38, Aman Karmani wrote:
>>>> Could you share the output of `xcrun metal -v`
>>> 
>>> $ xcrun metal -v
>>> Apple LLVM version 902.9 (metalfe-902.9.61)
>>> Target: air64-apple-darwin18.7.0
>>> Thread model: posix
>>> InstalledDir:
>>> 
>>> 
>> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain
>>> /usr/metal/ios/bin
>>> 
>> 
>> I am able to get the ios binary too, but only when I request is explicitly
>> as follows:
>> 
>> $ xcrun -sdk $(xcodebuild -sdk iphoneos -version Path) metal -v
>> 
>> Apple metal version 31001.325 (metalfe-31001.325)
>> Target: air64-apple-darwin20.6.0
>> Thread model: posix
>> InstalledDir:
>> 
>> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/ios/bin
>> 
>> 
> 
> Running `xcrun -sdk $(xcodebuild -sdk macosx -version Path) metal
> libavfilter/metal/vf_yadif_videotoolbox.metal -o
> libavfilter/metal/vf_yadif_videotoolbox.metal.air` does indeed compile
> properly and properly shows macos
> 
> xcrun -sdk $(xcodebuild -sdk macosx -version Path) metal -v
> Apple LLVM version 31001.143 (metalfe-31001.143)
> Target: air64-apple-darwin19.6.0
> Thread model: posix
> InstalledDir:
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/bin
> 
> and I can indeed have FFmpeg configure and make with `./configure
> --metalcc="xcrun -sdk $(xcodebuild -sdk macosx -version Path) metal"`, but
> that would sorta ruin the whole idea of being able to simply clone and
> ./configure and make.
> 
> I tried looking online, and I guess maybe it's not something often asked as
> I could not find relevant results to how to set the default xcrun sdk, so
> I'm not sure how to make that -sdk flag apply to all xcruns regardless of
> configure flags
> _______________________________________________
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> ffmpeg-devel@ffmpeg.org <mailto:ffmpeg-devel@ffmpeg.org>
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> 
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> ffmpeg-devel-request@ffmpeg.org <mailto:ffmpeg-devel-request@ffmpeg.org> with subject "unsubscribe".

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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Christopher Degawa]

On Mon, Dec 20, 2021 at 7:25 PM Aman Karmani <ffmpeg@tmm1.net> wrote:

> On Mon, Dec 20, 2021 at 5:19 PM Christopher Degawa <ccom@randomderp.com>
> wrote:
>
> > On Mon, Dec 20, 2021 at 6:55 PM Aman Karmani <ffmpeg@tmm1.net> wrote:
> >
> > > On Mon, Dec 20, 2021 at 4:52 PM Helmut K. C. Tessarek <
> > > tessarek@evermeet.cx>
> > > wrote:
> > >
> > > > -----BEGIN PGP SIGNED MESSAGE-----
> > > > Hash: SHA512
> > > >
> > > >
> > > >
> > > > On 2021-12-20 19:38, Aman Karmani wrote:
> > > > > Could you share the output of `xcrun metal -v`
> > > >
> > > > $ xcrun metal -v
> > > > Apple LLVM version 902.9 (metalfe-902.9.61)
> > > > Target: air64-apple-darwin18.7.0
> > > > Thread model: posix
> > > > InstalledDir:
> > > >
> > > >
> > >
> >
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain
> > > > /usr/metal/ios/bin
> > > >
> > >
> > > I am able to get the ios binary too, but only when I request is
> > explicitly
> > > as follows:
> > >
> > > $ xcrun -sdk $(xcodebuild -sdk iphoneos -version Path) metal -v
> > >
> > > Apple metal version 31001.325 (metalfe-31001.325)
> > > Target: air64-apple-darwin20.6.0
> > > Thread model: posix
> > > InstalledDir:
> > >
> > >
> >
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/ios/bin
> > >
> > >
> >
> > Running `xcrun -sdk $(xcodebuild -sdk macosx -version Path) metal
> > libavfilter/metal/vf_yadif_videotoolbox.metal -o
> > libavfilter/metal/vf_yadif_videotoolbox.metal.air` does indeed compile
> > properly and properly shows macos
> >
>
> Great, thanks for the confirmation!
>
>
> >
> > xcrun -sdk $(xcodebuild -sdk macosx -version Path) metal -v
> > Apple LLVM version 31001.143 (metalfe-31001.143)
> > Target: air64-apple-darwin19.6.0
> > Thread model: posix
> > InstalledDir:
> >
> >
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/bin
> >
> > and I can indeed have FFmpeg configure and make with `./configure
> > --metalcc="xcrun -sdk $(xcodebuild -sdk macosx -version Path) metal"`,
> but
> > that would sorta ruin the whole idea of being able to simply clone and
> > ./configure and make.
> >
>
> Cool, that's also good to hear.
>
> Does this work for you?
>
> $ xcrun --sdk macosx metal -v
>
> If so, then perhaps this patch is enough?
>
> diff --git a/configure b/configure
> index d9d41b2273..c4a59e0e3f 100755
> --- a/configure
> +++ b/configure
> @@ -3842,8 +3842,8 @@ host_cc_default="gcc"
>  doxygen_default="doxygen"
>  install="install"
>  ln_s_default="ln -s -f"
> -metalcc_default="xcrun metal"
> -metallib_default="xcrun metallib"
> +metalcc_default="xcrun --sdk macosx metal"
> +metallib_default="xcrun --sdk macosx metallib"
>  nm_default="nm -g"
>  pkg_config_default=pkg-config
>  ranlib_default="ranlib"
>
>
>
xcrun --sdk macosx metal -v
Apple LLVM version 31001.143 (metalfe-31001.143)
Target: air64-apple-darwin19.6.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/bin

That does seem to work indeed

make
xcrun --sdk macosx metal libavfilter/metal/vf_yadif_videotoolbox.metal -o
libavfilter/metal/vf_yadif_videotoolbox.metal.air
xcrun --sdk macosx metallib --split-module-without-linking
libavfilter/metal/vf_yadif_videotoolbox.metal.air -o
libavfilter/metal/vf_yadif_videotoolbox.metallib
BIN2C   libavfilter/metal/vf_yadif_videotoolbox.metallib.c
CC      libavfilter/metal/vf_yadif_videotoolbox.metallib.o
AR      libavfilter/libavfilter.a
LD      ffmpeg_g
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Christopher Degawa]

On Mon, Dec 20, 2021 at 7:29 PM Ridley Combs <rcombs@rcombs.me> wrote:

> The main thing that confuses me here is that this file does build for me
> when I use the iOS version of the metal compiler (tbh I didn't even know
> there was a difference between them).
>
> What Xcode and macOS version are you on?
>


system_profiler SPSoftwareDataType
Software:

    System Software Overview:

      System Version: macOS 10.15.7 (19H1615)
      Kernel Version: Darwin 19.6.0


xcodebuild -version
Xcode 12.3
Build version 12C5020f

xcrun --version
xcrun version 59.

I don't know what other versions might be beneficial here.

I can't (don't want to) upgrade the macOS system version atm since last
time I tried it via softwareupdate, it managed to make the device
unresponsive until someone physically rebooted it and managed to do the
same with an aws mac1.metal instance running 12.0 just today.
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Helmut K. C. Tessarek]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512



On 2021-12-20 20:20, Aman Karmani wrote:
> Once we figure out why some computers are using the wrong metal binary, 
> then we can fix it and commit the fix to master as well.

With the 2 patches from Ridley and your configure patch I run into the
following error now:

OBJCC	libavfilter/metal/utils.o
HOSTLD	ffbuild/bin2c
xcrun --sdk macosx metal libavfilter/metal/vf_yadif_videotoolbox.metal -o
libavfilter/metal/vf_yadif_videotoolbox.metal.air
CC	libavfilter/motion_estimation.o
CC	libavfilter/pthread.o
CC	libavfilter/qp_table.o
CC	libavfilter/scale_eval.o
CC	libavfilter/scene_sad.o
CC	libavfilter/setpts.o
CC	libavfilter/settb.o
CC	libavfilter/split.o
CC	libavfilter/src_movie.o
CC	libavfilter/transform.o
CC	libavfilter/trim.o
CC	libavfilter/vaf_spectrumsynth.o
libavfilter/metal/utils.m:33:21: warning: instance method '-supportsFamily:'
not found (return type defaults to 'id') [-Wobjc-method-access]
        if ([device supportsFamily:MTLGPUFamilyCommon3]) {
                    ^~~~~~~~~~~~~~
libavfilter/metal/utils.m:33:36: error: use of undeclared identifier
'MTLGPUFamilyCommon3'
        if ([device supportsFamily:MTLGPUFamilyCommon3]) {
                                   ^
1 warning and 1 error generated.
CC	libavfilter/vf_addroi.o
make: *** [libavfilter/metal/utils.o] Error 1
make: *** Waiting for unfinished jobs....
rm libavfilter/metal/vf_yadif_videotoolbox.metal.air


- -- 
regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944

/*
   Thou shalt not follow the NULL pointer for chaos and madness
   await thee at its end.
*/
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Ridley Combs]

Try this (replacing all previous patches): https://gist.github.com/2b1ea91330a748740d608680b0f8abd2 <https://gist.github.com/2b1ea91330a748740d608680b0f8abd2>


> On Dec 20, 2021, at 19:35, Helmut K. C. Tessarek <tessarek@evermeet.cx> wrote:
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
> 
> 
> 
> On 2021-12-20 20:20, Aman Karmani wrote:
>> Once we figure out why some computers are using the wrong metal binary, 
>> then we can fix it and commit the fix to master as well.
> 
> With the 2 patches from Ridley and your configure patch I run into the
> following error now:
> 
> OBJCC	libavfilter/metal/utils.o
> HOSTLD	ffbuild/bin2c
> xcrun --sdk macosx metal libavfilter/metal/vf_yadif_videotoolbox.metal -o
> libavfilter/metal/vf_yadif_videotoolbox.metal.air
> CC	libavfilter/motion_estimation.o
> CC	libavfilter/pthread.o
> CC	libavfilter/qp_table.o
> CC	libavfilter/scale_eval.o
> CC	libavfilter/scene_sad.o
> CC	libavfilter/setpts.o
> CC	libavfilter/settb.o
> CC	libavfilter/split.o
> CC	libavfilter/src_movie.o
> CC	libavfilter/transform.o
> CC	libavfilter/trim.o
> CC	libavfilter/vaf_spectrumsynth.o
> libavfilter/metal/utils.m:33:21: warning: instance method '-supportsFamily:'
> not found (return type defaults to 'id') [-Wobjc-method-access]
>        if ([device supportsFamily:MTLGPUFamilyCommon3]) {
>                    ^~~~~~~~~~~~~~
> libavfilter/metal/utils.m:33:36: error: use of undeclared identifier
> 'MTLGPUFamilyCommon3'
>        if ([device supportsFamily:MTLGPUFamilyCommon3]) {
>                                   ^
> 1 warning and 1 error generated.
> CC	libavfilter/vf_addroi.o
> make: *** [libavfilter/metal/utils.o] Error 1
> make: *** Waiting for unfinished jobs....
> rm libavfilter/metal/vf_yadif_videotoolbox.metal.air
> 
> 
> - -- 
> regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
> Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944
> 
> /*
>   Thou shalt not follow the NULL pointer for chaos and madness
>   await thee at its end.
> */
> -----BEGIN PGP SIGNATURE-----
> 
> iQIzBAEBCgAdFiEE191csiqpm8f5Ln9WvgmFNJ1E3QAFAmHBL3wACgkQvgmFNJ1E
> 3QBZ5BAApVGHkKD8ZtnnvqOFY9vPAHUdTtSOPPRu/U7bb/16k+rhz9gW7gPyzVbw
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> =4Pni
> -----END PGP SIGNATURE-----
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> 
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".

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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Christopher Degawa]

On Mon, Dec 20, 2021 at 7:21 PM Aman Karmani <ffmpeg@tmm1.net> wrote:

>
>
> On Mon, Dec 20, 2021 at 5:03 PM Helmut K. C. Tessarek <
> tessarek@evermeet.cx> wrote:
>
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA512
>>
>> On 2021-12-20 19:11, Christopher Degawa wrote:
>> > So I've exported "LIBRARY_PATH" to
>>
>> I'm sorry to say, this is a workaround but hardly a solution.
>>
>
> No one said this is the solution. We are just trying to figure out what is
> going on, and this added information is very helpful in that effort.
>
>
>> Before these 2 commits all worked perfectly. Now it doesn't. Tweaking the
>> build env is not a solution.
>> Next time someone commits something, are we supposed to tweak it again?
>> Where does it end?
>>
>
> I'm not sure what your point is. If you are having trouble with those
> commits, then you can use an older version?
>
> Or you can compile with `./configure --disable-metal` to disable the new
> feature.
>
> Obviously the code worked on both my and Ridley's computers. If it didn't
> work, we wouldn't have committed it.
>
> Once we figure out why some computers are using the wrong metal binary,
> then we can fix it and commit the fix to master as well.
>


Digging a bit into xcrun itself, looking at
https://real-world-systems.com/docs/xcrun.1.html, it says

> The SDK which will be searched defaults to the most recent available SDK

and

xcodebuild -version -sdk | head
iPhoneOS14.3.sdk - iOS 14.3 (iphoneos14.3)
SDKVersion: 14.3
Path:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.3.sdk
PlatformVersion: 14.3

Which I'm guessing might be the reason, but still doesn't really make
logical sense and running

xcrun --verbose metal -v
...
xcrun: note: SDKROOT = '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk'
...
xcrun: note: lookup resolved in
'/var/folders/yf/4yc0fdvx7zv1t17w41kxmr0r0000gn/T/xcrun_db' :
'/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/metal'
Apple LLVM version 31001.43 (metalfe-31001.43)
Target: air64-apple-darwin19.6.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/ios/bin

which also, doesn't make sense.

exporting SDKROOT to `macosx` does make it show

xcrun: note: SDKROOT =
'/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk'

xcrun: note: lookup resolved in
'/var/folders/yf/4yc0fdvx7zv1t17w41kxmr0r0000gn/T/xcrun_db' :
'/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/metal'
Apple LLVM version 31001.143 (metalfe-31001.143)
Target: air64-apple-darwin19.6.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/bin

so, I'm not sure what conclusion to bring from this.


>
>>
>>
>> - --
>> regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
>> Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944
>>
>> /*
>>    Thou shalt not follow the NULL pointer for chaos and madness
>>    await thee at its end.
>> */
>> -----BEGIN PGP SIGNATURE-----
>>
>> iQIzBAEBCgAdFiEE191csiqpm8f5Ln9WvgmFNJ1E3QAFAmHBJ/EACgkQvgmFNJ1E
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>> =maKQ
>> -----END PGP SIGNATURE-----
>> _______________________________________________
>> ffmpeg-devel mailing list
>> ffmpeg-devel@ffmpeg.org
>> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>>
>> To unsubscribe, visit link above, or email
>> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>>
>
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Aman Karmani]

On Mon, Dec 20, 2021 at 5:48 PM Christopher Degawa <ccom@randomderp.com>
wrote:

>
>
> On Mon, Dec 20, 2021 at 7:21 PM Aman Karmani <ffmpeg@tmm1.net> wrote:
>
>>
>>
>> On Mon, Dec 20, 2021 at 5:03 PM Helmut K. C. Tessarek <
>> tessarek@evermeet.cx> wrote:
>>
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA512
>>>
>>> On 2021-12-20 19:11, Christopher Degawa wrote:
>>> > So I've exported "LIBRARY_PATH" to
>>>
>>> I'm sorry to say, this is a workaround but hardly a solution.
>>>
>>
>> No one said this is the solution. We are just trying to figure out what
>> is going on, and this added information is very helpful in that effort.
>>
>>
>>> Before these 2 commits all worked perfectly. Now it doesn't. Tweaking the
>>> build env is not a solution.
>>> Next time someone commits something, are we supposed to tweak it again?
>>> Where does it end?
>>>
>>
>> I'm not sure what your point is. If you are having trouble with those
>> commits, then you can use an older version?
>>
>> Or you can compile with `./configure --disable-metal` to disable the new
>> feature.
>>
>> Obviously the code worked on both my and Ridley's computers. If it didn't
>> work, we wouldn't have committed it.
>>
>> Once we figure out why some computers are using the wrong metal binary,
>> then we can fix it and commit the fix to master as well.
>>
>
>
> Digging a bit into xcrun itself, looking at
> https://real-world-systems.com/docs/xcrun.1.html, it says
>
> > The SDK which will be searched defaults to the most recent available SDK
>
> and
>
> xcodebuild -version -sdk | head
> iPhoneOS14.3.sdk - iOS 14.3 (iphoneos14.3)
> SDKVersion: 14.3
> Path:
> /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.3.sdk
> PlatformVersion: 14.3
>
> Which I'm guessing might be the reason, but still doesn't really make
> logical sense and running
>
> xcrun --verbose metal -v
> ...
> xcrun: note: SDKROOT =
> '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk'
> ...
> xcrun: note: lookup resolved in
> '/var/folders/yf/4yc0fdvx7zv1t17w41kxmr0r0000gn/T/xcrun_db' :
> '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/metal'
> Apple LLVM version 31001.43 (metalfe-31001.43)
> Target: air64-apple-darwin19.6.0
> Thread model: posix
> InstalledDir:
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/ios/bin
>
> which also, doesn't make sense.
>
> exporting SDKROOT to `macosx` does make it show
>
> xcrun: note: SDKROOT =
> '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk'
>
> xcrun: note: lookup resolved in
> '/var/folders/yf/4yc0fdvx7zv1t17w41kxmr0r0000gn/T/xcrun_db' :
> '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/metal'
> Apple LLVM version 31001.143 (metalfe-31001.143)
> Target: air64-apple-darwin19.6.0
> Thread model: posix
> InstalledDir:
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/bin
>
> so, I'm not sure what conclusion to bring from this.
>

Thanks for digging in and documenting this behavior.

It seems like a bug in Xcode to me. Perhaps it's fixed in newer XC, which
is why we're not seeing it?

It may be worth filing a radar either way.


>
>
>>
>>>
>>>
>>> - --
>>> regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
>>> Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944
>>>
>>> /*
>>>    Thou shalt not follow the NULL pointer for chaos and madness
>>>    await thee at its end.
>>> */
>>> -----BEGIN PGP SIGNATURE-----
>>>
>>> iQIzBAEBCgAdFiEE191csiqpm8f5Ln9WvgmFNJ1E3QAFAmHBJ/EACgkQvgmFNJ1E
>>> 3QDsJg//WzTdNngpbNhCihB0foMLjtL687/1FWqZKPfsCx5pvvLZq/Xj8cd1G2G5
>>> XJOehG1YYkjKXE+I1oWBrRxxQ/1mkW49DjX6jyzGUFPvEV+e0yf6f6TUPrE9IYDw
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>>> TfLHBLpjJHqEq2i6+hyaYF4Y3M9ctRa/JVjv1EjciXFWzMx2Ddhehxv0TPu1tY0A
>>> UxiQ0By0hJhZDDzOPxez9DgCs/ecmIcUxq4mKuk6KXLIBfJqFrNIN/Mzsn7hBOI7
>>> EPLui0+Jo+cWB3AsDRIGNO9UwN+gZAGKxGHt9U9//Af5rzzY0TQ09Z+To14BxD0V
>>> lTqDp69JlsutJIpQfOywkPb5ExaFgX7vYZmXEb1f05zlIScIeBRdPxKJ9Sip2Cyo
>>> AVzTsQIDTGkNM3KUJE8m3EgrX8V+gJOXKtfK+phUr5YvyhP5IpE=
>>> =maKQ
>>> -----END PGP SIGNATURE-----
>>> _______________________________________________
>>> ffmpeg-devel mailing list
>>> ffmpeg-devel@ffmpeg.org
>>> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>>>
>>> To unsubscribe, visit link above, or email
>>> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>>>
>>
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Helmut K. C. Tessarek]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

On 2021-12-20 20:39, Ridley Combs wrote:
> Try this (replacing all previous patches): 
> https://gist.github.com/2b1ea91330a748740d608680b0f8abd2

This worked splendidly. All good with this patch.

If you want to test the binary on 10.9 or 10.10, here you go:
https://evermeet.cx/pub/tmp/ffmpeg.zip

I will most likely delete this zip file in a week or so.

Cheers,
  K. C.

- -- 
regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944

/*
   Thou shalt not follow the NULL pointer for chaos and madness
   await thee at its end.
*/
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Christopher Degawa]

On Mon, Dec 20, 2021 at 7:53 PM Aman Karmani <ffmpeg@tmm1.net> wrote:

>
>
> On Mon, Dec 20, 2021 at 5:48 PM Christopher Degawa <ccom@randomderp.com>
> wrote:
>
>>
>>
>> On Mon, Dec 20, 2021 at 7:21 PM Aman Karmani <ffmpeg@tmm1.net> wrote:
>>
>>>
>>>
>>> On Mon, Dec 20, 2021 at 5:03 PM Helmut K. C. Tessarek <
>>> tessarek@evermeet.cx> wrote:
>>>
>>>> -----BEGIN PGP SIGNED MESSAGE-----
>>>> Hash: SHA512
>>>>
>>>> On 2021-12-20 19:11, Christopher Degawa wrote:
>>>> > So I've exported "LIBRARY_PATH" to
>>>>
>>>> I'm sorry to say, this is a workaround but hardly a solution.
>>>>
>>>
>>> No one said this is the solution. We are just trying to figure out what
>>> is going on, and this added information is very helpful in that effort.
>>>
>>>
>>>> Before these 2 commits all worked perfectly. Now it doesn't. Tweaking
>>>> the
>>>> build env is not a solution.
>>>> Next time someone commits something, are we supposed to tweak it again?
>>>> Where does it end?
>>>>
>>>
>>> I'm not sure what your point is. If you are having trouble with those
>>> commits, then you can use an older version?
>>>
>>> Or you can compile with `./configure --disable-metal` to disable the new
>>> feature.
>>>
>>> Obviously the code worked on both my and Ridley's computers. If it
>>> didn't work, we wouldn't have committed it.
>>>
>>> Once we figure out why some computers are using the wrong metal binary,
>>> then we can fix it and commit the fix to master as well.
>>>
>>
>>
>> Digging a bit into xcrun itself, looking at
>> https://real-world-systems.com/docs/xcrun.1.html, it says
>>
>> > The SDK which will be searched defaults to the most recent available
>> SDK
>>
>> and
>>
>> xcodebuild -version -sdk | head
>> iPhoneOS14.3.sdk - iOS 14.3 (iphoneos14.3)
>> SDKVersion: 14.3
>> Path:
>> /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.3.sdk
>> PlatformVersion: 14.3
>>
>> Which I'm guessing might be the reason, but still doesn't really make
>> logical sense and running
>>
>> xcrun --verbose metal -v
>> ...
>> xcrun: note: SDKROOT =
>> '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk'
>> ...
>> xcrun: note: lookup resolved in
>> '/var/folders/yf/4yc0fdvx7zv1t17w41kxmr0r0000gn/T/xcrun_db' :
>> '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/metal'
>> Apple LLVM version 31001.43 (metalfe-31001.43)
>> Target: air64-apple-darwin19.6.0
>> Thread model: posix
>> InstalledDir:
>> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/ios/bin
>>
>> which also, doesn't make sense.
>>
>> exporting SDKROOT to `macosx` does make it show
>>
>> xcrun: note: SDKROOT =
>> '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk'
>>
>> xcrun: note: lookup resolved in
>> '/var/folders/yf/4yc0fdvx7zv1t17w41kxmr0r0000gn/T/xcrun_db' :
>> '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/metal'
>> Apple LLVM version 31001.143 (metalfe-31001.143)
>> Target: air64-apple-darwin19.6.0
>> Thread model: posix
>> InstalledDir:
>> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/bin
>>
>> so, I'm not sure what conclusion to bring from this.
>>
>
> Thanks for digging in and documenting this behavior.
>
> It seems like a bug in Xcode to me. Perhaps it's fixed in newer XC, which
> is why we're not seeing it?
>
> It may be worth filing a radar either way.
>
>

As an additional note, just spun up a new mac1.metal instance with macOS
10.15 to see if I could compile ffmpeg with nothing in the system other
than build tools and I am getting an error of

xcrun: error: unable to find utility "metal", not a developer tool or in
PATH

and realized that I can't even run xcodebuild because

xcodebuild --version
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer
directory '/Library/Developer/CommandLineTools' is a command line tools
instance


It might be better to first check if `$metalcc --version` even runs first
before enabling or even checking if metal works
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Ridley Combs]

> On Dec 21, 2021, at 00:04, Christopher Degawa <ccom@randomderp.com> wrote:
> 
> On Mon, Dec 20, 2021 at 7:53 PM Aman Karmani <ffmpeg@tmm1.net <mailto:ffmpeg@tmm1.net>> wrote:
> 
>> 
>> 
>> On Mon, Dec 20, 2021 at 5:48 PM Christopher Degawa <ccom@randomderp.com>
>> wrote:
>> 
>>> 
>>> 
>>> On Mon, Dec 20, 2021 at 7:21 PM Aman Karmani <ffmpeg@tmm1.net> wrote:
>>> 
>>>> 
>>>> 
>>>> On Mon, Dec 20, 2021 at 5:03 PM Helmut K. C. Tessarek <
>>>> tessarek@evermeet.cx> wrote:
>>>> 
>>>>> -----BEGIN PGP SIGNED MESSAGE-----
>>>>> Hash: SHA512
>>>>> 
>>>>> On 2021-12-20 19:11, Christopher Degawa wrote:
>>>>>> So I've exported "LIBRARY_PATH" to
>>>>> 
>>>>> I'm sorry to say, this is a workaround but hardly a solution.
>>>>> 
>>>> 
>>>> No one said this is the solution. We are just trying to figure out what
>>>> is going on, and this added information is very helpful in that effort.
>>>> 
>>>> 
>>>>> Before these 2 commits all worked perfectly. Now it doesn't. Tweaking
>>>>> the
>>>>> build env is not a solution.
>>>>> Next time someone commits something, are we supposed to tweak it again?
>>>>> Where does it end?
>>>>> 
>>>> 
>>>> I'm not sure what your point is. If you are having trouble with those
>>>> commits, then you can use an older version?
>>>> 
>>>> Or you can compile with `./configure --disable-metal` to disable the new
>>>> feature.
>>>> 
>>>> Obviously the code worked on both my and Ridley's computers. If it
>>>> didn't work, we wouldn't have committed it.
>>>> 
>>>> Once we figure out why some computers are using the wrong metal binary,
>>>> then we can fix it and commit the fix to master as well.
>>>> 
>>> 
>>> 
>>> Digging a bit into xcrun itself, looking at
>>> https://real-world-systems.com/docs/xcrun.1.html, it says
>>> 
>>>> The SDK which will be searched defaults to the most recent available
>>> SDK
>>> 
>>> and
>>> 
>>> xcodebuild -version -sdk | head
>>> iPhoneOS14.3.sdk - iOS 14.3 (iphoneos14.3)
>>> SDKVersion: 14.3
>>> Path:
>>> /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.3.sdk
>>> PlatformVersion: 14.3
>>> 
>>> Which I'm guessing might be the reason, but still doesn't really make
>>> logical sense and running
>>> 
>>> xcrun --verbose metal -v
>>> ...
>>> xcrun: note: SDKROOT =
>>> '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk'
>>> ...
>>> xcrun: note: lookup resolved in
>>> '/var/folders/yf/4yc0fdvx7zv1t17w41kxmr0r0000gn/T/xcrun_db' :
>>> '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/metal'
>>> Apple LLVM version 31001.43 (metalfe-31001.43)
>>> Target: air64-apple-darwin19.6.0
>>> Thread model: posix
>>> InstalledDir:
>>> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/ios/bin
>>> 
>>> which also, doesn't make sense.
>>> 
>>> exporting SDKROOT to `macosx` does make it show
>>> 
>>> xcrun: note: SDKROOT =
>>> '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk'
>>> 
>>> xcrun: note: lookup resolved in
>>> '/var/folders/yf/4yc0fdvx7zv1t17w41kxmr0r0000gn/T/xcrun_db' :
>>> '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/metal'
>>> Apple LLVM version 31001.143 (metalfe-31001.143)
>>> Target: air64-apple-darwin19.6.0
>>> Thread model: posix
>>> InstalledDir:
>>> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/metal/macos/bin
>>> 
>>> so, I'm not sure what conclusion to bring from this.
>>> 
>> 
>> Thanks for digging in and documenting this behavior.
>> 
>> It seems like a bug in Xcode to me. Perhaps it's fixed in newer XC, which
>> is why we're not seeing it?
>> 
>> It may be worth filing a radar either way.
>> 
>> 
> 
> As an additional note, just spun up a new mac1.metal instance with macOS
> 10.15 to see if I could compile ffmpeg with nothing in the system other
> than build tools and I am getting an error of
> 
> xcrun: error: unable to find utility "metal", not a developer tool or in
> PATH
> 
> and realized that I can't even run xcodebuild because
> 
> xcodebuild --version
> xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer
> directory '/Library/Developer/CommandLineTools' is a command line tools
> instance
> 
> 
> It might be better to first check if `$metalcc --version` even runs first
> before enabling or even checking if metal works

Huh, TIL that the metal compiler doesn't exist without Xcode, but the metal framework does! Wacky. Anyway, this patch oughtta fix that (does more or less as you suggested); if this is all fine on your end, I'll go ahead and split this up into a few commits and send them to the list: https://gist.github.com/44e6575fbd4d84c016e63d8ddb1fb52e <https://gist.github.com/44e6575fbd4d84c016e63d8ddb1fb52e>
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Re: [FFmpeg-devel] commits ecee6af8bd and 4ac869ca2a break build for macOS

[Christopher Degawa]

On Tue, Dec 21, 2021 at 1:40 AM Ridley Combs <rcombs@rcombs.me> wrote:

> Huh, TIL that the metal compiler doesn't exist without Xcode, but the
> metal framework does! Wacky. Anyway, this patch oughtta fix that (does more
> or less as you suggested); if this is all fine on your end, I'll go ahead
> and split this up into a few commits and send them to the list:
> https://gist.github.com/44e6575fbd4d84c016e63d8ddb1fb52e <
> https://gist.github.com/44e6575fbd4d84c016e63d8ddb1fb52e>
>

That indeed does fix the simple clone configure make triplet and I can now
build without errors and does not break compilation with metal stuff if
Xcode is installed
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