Bartlomiej Wolowiec wrote: > On czwartek, 20 marca 2008, Michael Niedermayer wrote: >> On Thu, Mar 20, 2008 at 07:38:06PM +0100, Bartlomiej Wolowiec wrote: >>> On wtorek, 18 marca 2008, Michael Niedermayer wrote: >>>> The (E)AC-3 AVParser should split the (E)AC-3 stream so that the chunks >>>> of data send to the decoder (ac3_decode_frame) are complete and contain >>>> all channels. >>>> So ac3_decode_frame() would receive as input several "ac3 frames" if >>>> some channels are stored in future frames. >>> Hi, >>> Recently I had some free time, so I've tried to work on the parser. I >>> encountered one problem: ff_aac_ac3_parse function in aac_ac3_parser.c >>> needs to know stream_type. As an interface to read data about the stream >>> it uses >> What stream_type ? I dont understand you. >> ac3_sync() could just return the sum of the len of both frames (so all >> channels are available) or am i missing something? > > No, it isn't that simple: ac3_sync is given a buffer, which has only > header_size bytes. So it isn't able to read headers of following > frames and it doesn't know if they're an extension of current frame.... >
Exactly. That's probably going to require reworking the parser a bit. I can look through and give some suggestions if you want. But feel free to propose any changes to the parser that would fit what you need to do. -Justin _______________________________________________ FFmpeg-soc mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-soc
