Encoder (x264enc) and Decoder VDPAU incompatibility?

[Julien Moutte]

What type of H264 stream are you generating ? Elementary stream ? Muxed in
MPEG4 with AVCc ?

Looks like the VDPAU decoder is just not able to figure out the stream
markers.

Best regards,

Julien Moutte
CTO
Fluendo
San Francisco, USA & Barcelona, SPAIN
Tel BCN. +34 933 175 153
Tel USA. +1 415 773 5353

www.fluendo.com & www.moovida.com

P *Please consider the environment before printing this e-mail.*



On Fri, Aug 26, 2011 at 9:57 AM, Jérémy Lauraire
<jeremy.lauraire at gmail.com>wrote:

> Hi,
>
> I have posted many questions on this forum and I would like to sum up my
> problem today.
>
> I have developed :
>
> - an *Encoder h264* on this model : appsrc -> x264enc -> appsink
> - a* Decoder* that does VDPAU hardware acceleration with : appsrc ->
> vdpauh264dec -> vdpauvideopostprocess -> vdpausink.
>
> (The use of GstAppSrc and GstAppSink responds to my project's constraint
> which is the use of a particular network protocol...)
>
> I have tested the whole process with MPEG2 codec and it works fine (CPU <
> 2%). But no way to do it with h264...?
>
> The decoder replies (GST_DEBUG log) :
>
> 0:00:04.492899441  8629      0x1c2d570 DEBUG       basevideodecoder
> gstbasevideodecoder.c:567:gst_base_video_decoder_drain: *no sync, scanning
> *0:00:04.492909724  8629      0x1c2d570 DEBUG       basevideodecoder
> gstbasevideodecoder.c:587:gst_base_video_decoder_drain: *found possible
> sync after 0 bytes (of 3)
> *0:00:04.492918819  8629      0x1c2d570 DEBUG          * vdpauh264dec*h264/gstvdph264dec.c:654:gst_vdp_h264_dec_scan_for_packet_end: start_code: 1
>
> No error and no warning.....? I don't understand what is going wrong. Any
> idea? Thanks in advance!
>
>
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>
>
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