On Mon, 3 Aug 2015 10:32:02 +0000 (UTC) Carl Eugen Hoyos <ceho...@ag.or.at> wrote:
> Paul B Mahol <onemda <at> gmail.com> writes: > > > > Attached patch fixes ticket #4747 for me, > > > > I don't know how to detect that the wave > > > atom contains no frma / alac atom... > > > > And that is mentioned because? > > The file from ticket #4747 does not contain an > alac atom which is required for alac decoding. > Instead it contains the necessary data in the > wave atom (where you normally would find the > alac atom). To distinguish, it would be > necessary to look "into" the wave atom to know > if it contains an alac atom or not. > > I meanwhile found that the mpeg demuxer > sometimes seeks eight bytes back which I will > probably copy. The alternative, iiuc, would be > to copy the whole wave atom into a buffer and > call mov_read_default() from the wave_read() > function with that buffer. > But this should not be necessary if somebody > can confirm that it is ok to seek back x bytes > in a demuxer. > > As an alternative the current version could > also be committed, I am not sure. What produced that file? Does QuickTime play it? Why is there even a wave header? _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
