Bug 66450

Summary:	JUNIPER UVD accelerated playback of MPEG 1/2 streams does not work
Product:	Mesa	Reporter:	Eugene Shalygin <eugene.shalygin+bugzilla.FDO>
Component:	Drivers/Gallium/r600	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	medium	CC:	doctor64, johannes.hirte
Version:	unspecified
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	Possible fix. Possible fix v2

Description Eugene Shalygin 2013-07-01 11:24:25 UTC

When playing MPEG 1 or 2 streams using mplayer (or mplayer2 or ffplay or mpv) there is no output, only black rectangle. 

$vdpauinfo declares MPEG support:

MPEG1                16  9216  2048  1152
MPEG2_SIMPLE         16  9216  2048  1152
MPEG2_MAIN           16  9216  2048  1152


Output from ffmpeg shows:
Unsupported PixelFormat xvmcidct (16)
Unsupported PixelFormat xvmcmc (15)

acceleration of h264 works fine, so I conclude that UVD is initialized succesfully

Radeon Mobility HD 5850

Kernel 3.10.0, libdrm and mesa are from git master (30.06.2013)

sample file: http://samples.mplayerhq.hu/MPEG2/vid_0x80.ts

Comment 1 Alex Deucher 2013-07-10 13:09:37 UTC

*** Bug 66768 has been marked as a duplicate of this bug. ***

Comment 2 Christian König 2013-07-10 13:37:55 UTC

The vdpauinfo output is wrong, JUNIPER has an uvd 2.3 block and that can't decode MPEG2 in vld mode.

Going to fix that in a minute.

Comment 3 Christian König 2013-07-10 13:45:52 UTC

Created attachment 82275 [details] [review]
Possible fix.

Comment 4 Johannes Hirte 2013-07-10 14:16:24 UTC

With this patch applied, mplayer2 crashes on mpeg2 file with:

Detected file format: MPEG-PS (MPEG-2 Program Stream) (libavformat)
[mpeg @ 0x7fa7bec14cc0]max_analyze_duration 5000000 reached at 5005000
[lavf] stream 0: video (mpeg2video), -vid 0
[lavf] stream 1: audio (ac3), -aid 0
[lavf] stream 2: audio (ac3), -aid 1
Load subtitles in .
Forced video codec: ffmpeg12vdpau
Selected video codec: MPEG-1/2 video (VDPAU acceleration) [libavcodec]
Selected audio codec: ATSC A/52A (AC-3) [libavcodec]
AUDIO: 48000 Hz, 2 ch, s16le, 448.0 kbit/29.17% (ratio: 56000->192000)
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
Unsupported PixelFormat xvmcidct (16)
Unsupported PixelFormat xvmcmc (15)
VIDEO:  720x480  29.970 fps  7500.0 kbps (937.5 kB/s)                                                                                                                   
Aspect ratio is 1.78:1 - scaling to correct movie aspect.                                                                                                               
VO: [vdpau] 720x480 => 853x480 MPEG2 VDPAU acceleration                                                                                                                 
[vdpau] Compositing window manager detected. Assuming timing info is inaccurate.                                                                                        
                                                                                                                                                                        
                                                                                                                                                                        
MPlayer interrupted by signal 11 in module: check_framedrop

Comment 5 Johannes Hirte 2013-07-10 14:23:10 UTC

(In reply to comment #2)
> The vdpauinfo output is wrong, JUNIPER has an uvd 2.3 block and that can't
> decode MPEG2 in vld mode.

So the wikipedia article is wrong?

"The UVD 2 features full bitstream decoding of H.264/MPEG-4 AVC, VC-1, as well as MPEG2 video streams, and in addition it also supports dual video stream decoding and Picture-in-Picture mode. This makes UVD2 full BD-Live compliant."

http://en.wikipedia.org/wiki/Unified_Video_Decoder#UVD_2

Comment 6 Christian König 2013-07-10 14:41:01 UTC

(In reply to comment #5)
> (In reply to comment #2)
> > The vdpauinfo output is wrong, JUNIPER has an uvd 2.3 block and that can't
> > decode MPEG2 in vld mode.
> 
> So the wikipedia article is wrong?
> 
> "The UVD 2 features full bitstream decoding of H.264/MPEG-4 AVC, VC-1, as
> well as MPEG2 video streams, and in addition it also supports dual video
> stream decoding and Picture-in-Picture mode. This makes UVD2 full BD-Live
> compliant."
> 
> http://en.wikipedia.org/wiki/Unified_Video_Decoder#UVD_2

Yeah, that is complete nonsense. The MVC comment for UVD 3.0 is wrong also.

Comment 7 Christian König 2013-07-11 11:29:11 UTC

Created attachment 82331 [details] [review]
Possible fix v2

Update patch, should work better this time.

But please note that shader based decoding is far away from beeing perfect either.

Comment 8 Eugene Shalygin 2013-07-11 20:40:48 UTC

With this patch playback works. Thank you!

Comment 9 Alex Deucher 2014-01-10 18:45:24 UTC

*** Bug 73480 has been marked as a duplicate of this bug. ***

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