Cannot find codec matching selected -vo and video format 0x5634504D.

[Martix]

I've been testing libvdpau-sunxi
with example videos from: http://linux-sunxi.org/CedarX/VideoRenderingChart

All videos plays nicely in MPlayer without any lags or framedroping, except these:

"big_buck_bunny_1080p_MPEG4_MP3_25fps_7600K.AVI",
"park_joy_420_720p25.mp4" and
"big_buck_bunny_1080p_VP8_VORBIS_25fps_7800K.WebM"*

*Cedar is capable of VP8 decoding: https://bitbucket.org/paullo612/cedarx-vp8-test
VP8 video format: 0x30385056.

Do you plan to include support for these video formats?

MPlayer SVN-r36526-snapshot-4.8.2 (C) 2000-2013 MPlayer Team

Playing big_buck_bunny_1080p_MPEG4_MP3_25fps_7600K.AVI.
libavformat version 55.21.102 (internal)
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO: [MP4V] 1920x1080 24bpp 25.000 fps 7620.9 kbps (930.3 kbyte/s)
Clip info:
Software: SUPER(C) - by eRightSoft
Artist: created.with.SUPER(C).v2011.bld.49
Load subtitles in ./

[VDPAU SUNXI] VE version 0x1623 opened.

Forced video codec: ffmpeg12vdpau
Forced video codec: ffh264vdpau

Cannot find codec matching selected -vo and video format 0x5634504D.

Requested audio codec family mpg123 not available.
Enable it at compilation.
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
libavcodec version 55.44.100 (internal)
AUDIO: 44100 Hz, 2 ch, floatle, 112.0 kbit/3.97% (ratio: 14000->352800)

Selected audio codec: [ffmp3float] afm: ffmpeg (FFmpeg MPEG layer-3 audio)

[AO_ALSA] Format floatle is not supported by hardware, trying default.
AO: [alsa] 44100Hz 2ch s16le (2 bytes per sample)
Video: no video
Starting playback...
A: 2.1 (02.0) of 3100.4 (51:40.4) 18.8%

Exiting... (Quit)

vdpauinfo:
display: :0.0 screen: 0
[VDPAU SUNXI] VE version 0x1623 opened.
API version: 1
Information string: sunxi VDPAU Driver

Video surface:

name width height types

420 8192 8192

Decoder capabilities:

name level macbs width height

MPEG1 16 9216 2048 1152
MPEG2_SIMPLE 16 9216 2048 1152
MPEG2_MAIN 16 9216 2048 1152
H264_BASELINE 16 9216 2048 1152
H264_MAIN 16 9216 2048 1152
H264_HIGH 16 9216 2048 1152

Output surface:

name width height nat types

B8G8R8A8 8192 8192 -
R8G8B8A8 8192 8192 -

Bitmap surface:

name width height

Video mixer:

feature name sup

DEINTERLACE_TEMPORAL -
DEINTERLACE_TEMPORAL_SPATIAL -
INVERSE_TELECINE -
NOISE_REDUCTION -
SHARPNESS -
LUMA_KEY -
HIGH QUALITY SCALING - L1 -
HIGH QUALITY SCALING - L2 -
HIGH QUALITY SCALING - L3 -
HIGH QUALITY SCALING - L4 -
HIGH QUALITY SCALING - L5 -
HIGH QUALITY SCALING - L6 -
HIGH QUALITY SCALING - L7 -
HIGH QUALITY SCALING - L8 -
HIGH QUALITY SCALING - L9 -

parameter name sup min max

VIDEO_SURFACE_WIDTH y 0 8192
VIDEO_SURFACE_HEIGHT y 0 8192
CHROMA_TYPE y
LAYERS y 0 0

attribute name sup min max

BACKGROUND_COLOR -
CSC_MATRIX -
NOISE_REDUCTION_LEVEL -
SHARPNESS_LEVEL -
LUMA_KEY_MIN_LUMA -
LUMA_KEY_MAX_LUMA

[rdoeffinger]

Just a minor contributor, so my answers are not "final/official", but:
There is no support for VP8 in VDPAU, not is there any hardware accelerated decoding support for VP8 in FFmpeg.
So unless these projects do a lot of work first, I'm certain that won't happen.
MPEG-4 ASP is tricky because there are so many broken encoders. I'd be surprised if the hardware can even decode them all correctly. So it seems a bit questionable (also because the files you find in the wild should be SD and decodable in software just fine), but should be possible.
Note that if you just add a "," at the end of the -vc list (as in the updated readme I suggested) it should at least automatically fall back to software decoding.

[mosterta]

Hardware can decode MPEG4 ASP videos correctly, as my tests with MPEG4 videos have shown and as far as I can see in the assembly code. But there needs to be a lot of tweaks and different register configurations to support all those MPEG4/XVID/DIVX3/4/5 and different encoder versions.
But I am working on it ;) Still it can take a while to get all those working just in a basic manner