Sadly, using:
```
MP4Box - GPAC version 1.1.0-DEV-rev1077-g4f3ca79de-ab-suite
(c) 2000-2021 Telecom Paris distributed under LGPL v2.1+ - http://gpac.io
        MINI build (encoders, decoders, audio and video output disabled)

Please cite our work in your research:
        GPAC Filters: https://doi.org/10.1145/3339825.3394929
        GPAC: https://doi.org/10.1145/1291233.1291452

GPAC Configuration: --prefix=/local64 --disable-shared --enable-static --static-bin --static-build --static-modules --enable-all
Features: GPAC_CONFIG_WIN32 GPAC_64_BITS GPAC_MINIMAL_ODF GPAC_HAS_QJS GPAC_HAS_FREETYPE GPAC_HAS_MAD GPAC_HAS_JPEG GPAC_HAS_PNG GPAC_HAS_XVID  GPAC_DISABLE_3D
```
with [Test-AC3-5.1_2021-07-12@18_39_05_2610_02.m4v.zip](https://github.com/gpac/gpac/files/6803091/Test-AC3-5.1_2021-07-12%4018_39_05_2610_02.m4v.zip) and
```
MP4Box -add "E:\Temp\Test-AC3-5.1_2021-07-12@18_39_05_2610_02.m4v" -tmp "E:\Temp" -new "E:\Output\test.mp4"
```
fails with:
```
Filters not connected:
mp4mx (importer:file=00000209acd06920) (ptr=00000209acd0da70)
[Importer] Error importing E:\Temp\Test-AC3-5.1_2021-07-12@18_39_05_2610_02.m4v
Failure while importing media: Filter not found for the desired type
Error importing E:\Temp\Test-AC3-5.1_2021-07-12@18_39_05_2610_02.m4v: Filter not found for the desired type
```
(works fine with ffmpeg)

Cu Selur
Muxing Mpeg-4 ASP (DivX 5.0.2) fails
This is a GitHub Issue
repo:gpac
owner:gpac
Title : Muxing Mpeg-4 ASP (DivX 5.0.2) fails
Issue date:

--- start body ---
Sadly, using:
```
MP4Box - GPAC version 1.1.0-DEV-rev1077-g4f3ca79de-ab-suite
(c) 2000-2021 Telecom Paris distributed under LGPL v2.1+ - http://gpac.io
        MINI build (encoders, decoders, audio and video output disabled)

Please cite our work in your research:
        GPAC Filters: https://doi.org/10.1145/3339825.3394929
        GPAC: https://doi.org/10.1145/1291233.1291452

GPAC Configuration: --prefix=/local64 --disable-shared --enable-static --static-bin --static-build --static-modules --enable-all
Features: GPAC_CONFIG_WIN32 GPAC_64_BITS GPAC_MINIMAL_ODF GPAC_HAS_QJS GPAC_HAS_FREETYPE GPAC_HAS_MAD GPAC_HAS_JPEG GPAC_HAS_PNG GPAC_HAS_XVID  GPAC_DISABLE_3D
```
with [Test-AC3-5.1_2021-07-12@18_39_05_2610_02.m4v.zip](https://github.com/gpac/gpac/files/6803091/Test-AC3-5.1_2021-07-12%4018_39_05_2610_02.m4v.zip) and
```
MP4Box -add "E:\Temp\Test-AC3-5.1_2021-07-12@18_39_05_2610_02.m4v" -tmp "E:\Temp" -new "E:\Output\test.mp4"
```
fails with:
```
Filters not connected:
mp4mx (importer:file=00000209acd06920) (ptr=00000209acd0da70)
[Importer] Error importing E:\Temp\Test-AC3-5.1_2021-07-12@18_39_05_2610_02.m4v
Failure while importing media: Filter not found for the desired type
Error importing E:\Temp\Test-AC3-5.1_2021-07-12@18_39_05_2610_02.m4v: Filter not found for the desired type
```
(works fine with ffmpeg)

Cu Selur
--- end body ---
