[Ffmpeg-devel] H.264 decode error
Michael Niedermayer
michaelni
Thu Aug 25 02:02:21 CEST 2005
Hi
On Wed, Aug 24, 2005 at 02:29:40PM -0700, Bill May wrote:
> I'm trying to decoding some h.264 from a live encoder. It is main
> profile, level 3 (or it says so). It does, of course, decode with
> their own decoder.
>
> The encoder does not send IDR frames, only non-IDR with I-slices. I've
> captured the stream, and extracted started at the Sequence and picture
> headers. This stream will have multiple slices per access unit.
>
> I've uploaded the file, and the gdb session to wmay-h264 on the
> ftp.mplayerhq.hu.
the reference decoder says:
----
----------------------------- JM 9.8 (FRExt) -----------------------------
Decoder config file : dec.cfg
--------------------------------------------------------------------------
Input H.264 bitstream : harm.h264
Output decoded YUV : test_dec.yuv
Output status file : log.dec
Input reference file : test_rec.yuv
--------------------------------------------------------------------------
POC must = frame# or field# for SNRs to be correct
--------------------------------------------------------------------------
Frame POC Pic# QP SnrY SnrU SnrV Y:U:V Time(ms)
--------------------------------------------------------------------------
read_new_slice: Found NALU_TYPE_SEI, len 11
An unintentional loss of pictures occurs! Exit
----
so i would say its broken unless you can get it work or such streams are
common enough to justify figuring out whats wrong
[...]
--
Michael
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