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ittiam-systems / libmpegh

MPEG-H 3D Audio Low Complexity Profile Decoder. Encoder: https://github.com/ittiam-systems/libmpeghe Contact: mob-audio@ittiam.com
http://www.ittiam.com/
BSD 3-Clause Clear License
88 stars 18 forks source link

"core coder module :Initialization: : Insufficient input bytes" #17

Closed ThreeDeeJay closed 2 years ago

ThreeDeeJay commented 2 years ago

I've been trying to decode mpeg-h_3d_audio_mhm1_sample.mp4 (original source) using the latest ia_mpeghd_testbench.exe like: ia_mpeghd_testbench.exe -ifile:mpeg-h_3d_audio_mhm1_sample.mp4 -ofile:mpeg-h_3d_audio_mhm1_sample.wav -cicp:7

However, it hangs for a long time then outputs:

                       ITTIAM SYSTEMS PVT LTD, BANGALORE
                             http:\\www.ittiam.com
                     IA_MPEG_H_3D_AUD_DEC_MSVC $Rev: 1.2 $

fatal error: Ittiam mpegh_dec  core coder module :Initialization: : Initialization fatal error

MediaInfo:

Format                      : MPEG-4
Format profile              : Base Media / Version 2
Codec ID                    : mp42 (mp42/isom)
File size                   : 8.83 MiB
Duration                    : 46 s 0 ms
Overall bit rate            : 1 610 kb/s
Encoded date                : UTC 2019-10-24 08:16:45
Tagged date                 : UTC 2019-10-24 08:16:45

Audio
ID                          : 1
Format                      : MPEG-H 3D Audio
Format profile              : LC@L4
Codec ID                    : mhm1
Duration                    : 46 s 0 ms
Source duration             : 46 s 80 ms
Bit rate                    : 1 604 kb/s
Channel(s)                  : 24 channels (22.2)
Channel layout              : Lw Rw C LFE Lb Rb L R Cb LFE2 Lss Rss Tfl Tfr Tfc Tc Tbl Tbr Tll Tsr Tbc Bfc Bfl Bfr
Sampling rate               : 48.0 kHz
Frame rate                  : 46.875 FPS (1024 SPF)
Stream size                 : 8.80 MiB (100%)
Source stream size          : 8.81 MiB (100%)
Encoded date                : UTC 2019-10-24 08:16:45
Tagged date                 : UTC 2019-10-24 08:16:45
Signal group #1             : 24 objects
 Type                       : Object
 Number of objects          : 24 objects
Codec configuration box     : mhaC

I also tried decoding a remuxing with an old ffmpeg build (since apparently it's been superseeded/removed) (listed support) and then decoding mpeg-h_3d_audio_mhm1_sample_REMUX.mp4, but with the same results. Other MPEG-H 3D files convert fine, so I'm not sure if this is an issue with the file or the decoder. In case it's the file, are there any test files like channel identification for MPEG-H 3D?

SakethSathuvalli commented 2 years ago

Hi @ThreeDeeJay,

The issue you are facing is same as the one reported in the thread -

The solution is presented at : https://github.com/ittiam-systems/libmpegh/issues/1#issuecomment-1041358839

We have verified this at our end and the decoding happens fine for this stream with the above fix.

Thanks, Saketh

ThreeDeeJay commented 2 years ago

Ohh, my apologies. I wasn't aware it had been reported already. I'll give it a shot! 👍