Hi,
How can I set the audio track name? Imagine I have multiple audio tracks with several qualities or languages. How can I set the audio track name for each?

Sample command:
```
-i transcoded/video_h264_720_vcrf_23.mp4:#HLSPL=video/h264_720_vcrf_23/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b34665d152c0.xml:FID=SRC1::#HLSKey=skd://65ebb3d94544b359e976b34665d152c0",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -i transcoded/video_h264_480_vb_1500k.mp4:#HLSPL=video/h264_480_vb_1500k/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b347980565a6.xml:FID=SRC2::#HLSKey=skd://65ebb3d94544b359e976b347980565a6",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -i transcoded/video_h264_360_vb_1M.mp4:#HLSPL=video/h264_360_vb_1M/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b348cfcdc854.xml:FID=SRC3::#HLSKey=skd://65ebb3d94544b359e976b348cfcdc854",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -i transcoded/video_h264_240_vb_500k.mp4:#HLSPL=video/h264_240_vb_500k/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b349c7dbc8ff.xml:FID=SRC4::#HLSKey=skd://65ebb3d94544b359e976b349c7dbc8ff",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -i transcoded/video_h264_1080_vcrf_21.mp4:#HLSPL=video/h264_1080_vcrf_21/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b34ae17ee22c.xml:FID=SRC5::#HLSKey=skd://65ebb3d94544b359e976b34ae17ee22c",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -i transcoded/audio_aac_ab_64k_asr_44100_ac_1.mp4:#HLSPL=audio/aac_ab_64k_asr_44100_ac_1/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b34b4f8e2722.xml:FID=SRC6::#HLSKey=skd://65ebb3d94544b359e976b34b4f8e2722",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -i transcoded/audio_aac_ab_128k_asr_44100_ac_2.mp4:#HLSPL=audio/aac_ab_128k_asr_44100_ac_2/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b34c12b121c6.xml:FID=SRC7::#HLSKey=skd://65ebb3d94544b359e976b34c12b121c6",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -o drm/protected/live.m3u8:template=seg-$Number$:dual:segdur=2:SID=SRC1,SRC2,SRC3,SRC4,SRC5,SRC6,SRC7:profile=main
```

How to set audio tracks names when using GPAC?
This is a GitHub Issue
repo:gpac
owner:gpac
Title : How to set audio tracks names when using GPAC?
Issue date:

--- start body ---
Hi,
How can I set the audio track name? Imagine I have multiple audio tracks with several qualities or languages. How can I set the audio track name for each?

Sample command:
```
-i transcoded/video_h264_720_vcrf_23.mp4:#HLSPL=video/h264_720_vcrf_23/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b34665d152c0.xml:FID=SRC1::#HLSKey=skd://65ebb3d94544b359e976b34665d152c0",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -i transcoded/video_h264_480_vb_1500k.mp4:#HLSPL=video/h264_480_vb_1500k/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b347980565a6.xml:FID=SRC2::#HLSKey=skd://65ebb3d94544b359e976b347980565a6",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -i transcoded/video_h264_360_vb_1M.mp4:#HLSPL=video/h264_360_vb_1M/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b348cfcdc854.xml:FID=SRC3::#HLSKey=skd://65ebb3d94544b359e976b348cfcdc854",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -i transcoded/video_h264_240_vb_500k.mp4:#HLSPL=video/h264_240_vb_500k/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b349c7dbc8ff.xml:FID=SRC4::#HLSKey=skd://65ebb3d94544b359e976b349c7dbc8ff",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -i transcoded/video_h264_1080_vcrf_21.mp4:#HLSPL=video/h264_1080_vcrf_21/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b34ae17ee22c.xml:FID=SRC5::#HLSKey=skd://65ebb3d94544b359e976b34ae17ee22c",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -i transcoded/audio_aac_ab_64k_asr_44100_ac_1.mp4:#HLSPL=audio/aac_ab_64k_asr_44100_ac_1/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b34b4f8e2722.xml:FID=SRC6::#HLSKey=skd://65ebb3d94544b359e976b34b4f8e2722",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -i transcoded/audio_aac_ab_128k_asr_44100_ac_2.mp4:#HLSPL=audio/aac_ab_128k_asr_44100_ac_2/index.m3u8 @ cecrypt:cfile=drm/drmSpecs/65ebb3d94544b359e976b34c12b121c6.xml:FID=SRC7::#HLSKey=skd://65ebb3d94544b359e976b34c12b121c6",KEYFORMAT="com.apple.streamingkeydelivery",KEYFORMATVERSIONS="1 -o drm/protected/live.m3u8:template=seg-$Number$:dual:segdur=2:SID=SRC1,SRC2,SRC3,SRC4,SRC5,SRC6,SRC7:profile=main
```

--- end body ---
