On 9/8/17, Mike Brown <[email protected]> wrote: > On Fri, Sep 08, 2017 at 12:54:12AM +0200, Carl Eugen Hoyos wrote: >> (Sorry, my knowledge of SMPTE 337M is limited but I know that so far, >> this is the only "format" for which FFmpeg supports Dolby-E, and that >> adding support for other formats will be possible but hasn't been >> done yet.) > > From what I understand, reading the synopsis of SMPTE-337M, is that it is > not a container specifically for Dolby-E. I couldn't anything out of it to > indicate that it can even handle Dolby-E. > > That said, I do deal with SMPTE-302M, which is the spec for which Dolby-E is > applied to Transport Streams. In my case satellite feeds (not for the > consumer). The spec talks about MPEG-2 TS streams, but it applies to H.264 > streams as well. > > Right now, I use ffmpeg to extract the stream into a 2-ch WAVE file, in > which > I use in another program to extract the audio into 6 mono WAVE files. I > then > use ffmpeg to encode a AC3 file. > > Are you saying that I can use ffmpeg and get to a final ac3 file in a single > step?
No, you would need to copy audio to raw container, this raw container would be then detected as Dolby-E. ffmpeg -i input.wav -c:a copy -f u8 out.u8 ffmpeg -i out.u8 -c:a ac3 ..... _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
