[Libav-user] libavcodec/ac3enc.c dynamic range codes

2018-03-02 Thread Townson, Andrew E
I can assume based on the below excerpts from ac3enc.c that the AC3 encoder defaults to None for the Dynamic Range Compression profile specified on page 10 in Dolby's Metadata Guide: 659 /* assumptions: * no dynamic range codes * bit allocation parameters do not change

[Libav-user] does mp2 (MPEG audio layer 2) -format contain timecodes?

2018-03-02 Thread Sebastian Guttenberg
Hello Is anybody familiar with the internal structure of the MPEG audio layer 2 format? Is it similar to mp3, consisting of frames and headers? While I found a nice explanation of mp3 (MPEG Audio Layer 3) on wikipedia, I couldn’t find it in the same detail for mp2. In particular, I’m

Re: [Libav-user] Hardware encoder ARM input as device input

2018-03-02 Thread Marcin Woźniak
Writing to myself. Problem resolved. Wrong timebase. Thanks. W dniu 13.02.2018 o 13:56, Marcin Woźniak pisze: I am using HiSilicon 3516A board, there is no V4L device but other approach using /dev/venc ioctl calls and MPP API. I am able to open the encoder, read raw H264 packets but no go,