On 1/3/2018 1:54 AM, zhangjiejun1...@gmail.com wrote: > From: Jiejun Zhang <zhangjiejun1...@gmail.com> > > This fixes #6940 > > Although undocumented, AudioToolbox seems to require the data supplied > by the callback (i.e. ffat_encode_callback) being unchanged until the > next time the callback is called. In the old implementation, the > AVBuffer backing the frame is recycled after the frame is freed, and > somebody else (maybe the decoder) will write into the AVBuffer and > change the data. AudioToolbox then encodes some wrong data and noise > is produced. Retaining a frame reference solves this problem. > --- > libavcodec/audiotoolboxenc.c | 14 ++++++++++++++ > 1 file changed, 14 insertions(+)
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