search

JohanBlome / encapp

Easy way to test video encoders in Android in large scale.
BSD 3-Clause "New" or "Revised" License
22 stars 15 forks source link

Bitrate & iframe interval #185

Closed rcvangemert closed 1 year ago

rcvangemert commented 1 year ago

Johan, A Question! My app uses the android encoder for mp4 recording and streaming. I struggle to see the difference in quality or motion artefacts as I vary bitrare (tried 500k to 4meg) and iframe interval (tried 1 to 5). Should It be very obvious or is it suttle?

rcvangemert commented 1 year ago

After a bit more testing 2 of my samsung devices default to 4mbit, and 2 of my hp devices (chromebook android) work as expected. The lower the bitrate the more pixilazation.

JohanBlome commented 1 year ago

HelloSorry for not answering before.What you can check is the qp values per frame. If the value is low and stay consistent with increased bitrate you just have too little detail information and a lower bitrate is sufficient.Kind Regards Johan BlomeOn May 19, 2023 15:37, Robert Van Gemert @.***> wrote: After a bit more testing 2 of my samsung devices default to 4mbit, and 2 of my hp devices (chromebook android) work as expected. The lower the bitrate the more pixilazation.

—Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you are subscribed to this thread.Message ID: @.***>

rcvangemert commented 1 year ago

THanks

On Tue, 23 May 2023 at 10:33, Johan Blome @.***> wrote:

HelloSorry for not answering before.What you can check is the qp values per frame. If the value is low and stay consistent with increased bitrate you just have too little detail information and a lower bitrate is sufficient.Kind Regards Johan BlomeOn May 19, 2023 15:37, Robert Van Gemert @.***> wrote: After a bit more testing 2 of my samsung devices default to 4mbit, and 2 of my hp devices (chromebook android) work as expected. The lower the bitrate the more pixilazation.

—Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you are subscribed to this thread.Message ID: @.***>

— Reply to this email directly, view it on GitHub https://github.com/JohanBlome/encapp/issues/185#issuecomment-1558268480, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABGSW3HNTGVSFEWU7L32YQDXHQAV5ANCNFSM6AAAAAAYFWV5JM . You are receiving this because you modified the open/close state.Message ID: @.***>