[x264-devel] Finding access units with intra-refresh

[Tim Pitman]

Interesting. I added --aud but I'm not seeing any 0xX9s, just 0x67,
0x68, 0x41, 0x0C (I'm using nal-hrd cfr), and 0x06

On Tue, Oct 23, 2012 at 3:52 PM, Jason Garrett-Glaser <jason at x264.com> wrote:
> On Tue, Oct 23, 2012 at 3:41 PM, Tim Pitman <tapitman11 at gmail.com> wrote:
>> I'm encoding a low latency stream using x264 with intra-refresh and
>> decoding using libavcodec. I'm trying to understand the best way to
>> pass data to libavcodec because it's giving me some error messages
>> ("no frame", etc), even though the stream mostly plays ok. I thought
>> that I was passing it one NALU at a time, but it turns out I was only
>> passing it all the data between consecutive SPS and PPS. So it seems
>> like the  most correct thing to do is get one complete frame and then
>> hand that to libavcodec.
>>
>> My question is how do I find the beginning of a frame? From the spec I
>> was hoping to find access unit codes in the headers but I'm not seeing
>> any in my test stream. Would intra-refresh have any impact on this?
>
> --aud will add access unit delimiters, but you can also look at the
> POC in the slice headers.  Intra refresh isn't related.
>
> Jason
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