我一直在尝试使用 nvidia 驱动程序 340.96 在 ubuntu 14.04.4 上为 geforce 210 卡实现硬件加速,用于 avchd 1080p 60fps 文件。
kodi (16.0) 和 VLC 都制作出卡顿、不稳定的可用视频。播放时,CPU 核心 (core 2 duo E6750) 以 100% 和 40% 运行。nouveau 驱动程序也是如此。
Windows 7 可以完美播放它,所以这可能不是硬件问题。
vdpau信息:
display: :0 screen: 0
API version: 1
Information string: NVIDIA VDPAU Driver Shared Library 340.96 Sun Nov 8 22:09:55 PST 2015
Video surface:
name width height types
-------------------------------------------
420 4096 4096 NV12 YV12
422 4096 4096 UYVY YUYV
Decoder capabilities:
name level macbs width height
-------------------------------------------
MPEG1 0 8192 2048 2048
MPEG2_SIMPLE 3 8192 2048 2048
MPEG2_MAIN 3 8192 2048 2048
H264_MAIN 41 8192 2048 2048
H264_HIGH 41 8192 2048 2048
VC1_SIMPLE 1 8190 2048 2048
VC1_MAIN 2 8190 2048 2048
VC1_ADVANCED 4 8190 2048 2048
MPEG4_PART2_SP 3 8192 2048 2048
MPEG4_PART2_ASP 5 8192 2048 2048
DIVX4_QMOBILE 0 8192 2048 2048
DIVX4_MOBILE 0 8192 2048 2048
DIVX4_HOME_THEATER 0 8192 2048 2048
DIVX4_HD_1080P 0 8192 2048 2048
DIVX5_QMOBILE 0 8192 2048 2048
DIVX5_MOBILE 0 8192 2048 2048
DIVX5_HOME_THEATER 0 8192 2048 2048
DIVX5_HD_1080P 0 8192 2048 2048
Output surface:
name width height nat types
----------------------------------------------------
B8G8R8A8 8192 8192 y Y8U8V8A8 V8U8Y8A8
R10G10B10A2 8192 8192 y Y8U8V8A8 V8U8Y8A8
Bitmap surface:
name width height
------------------------------
B8G8R8A8 8192 8192
R8G8B8A8 8192 8192
R10G10B10A2 8192 8192
B10G10R10A2 8192 8192
A8 8192 8192
Video mixer:
feature name sup
------------------------------------
DEINTERLACE_TEMPORAL y
DEINTERLACE_TEMPORAL_SPATIAL y
INVERSE_TELECINE y
NOISE_REDUCTION y
SHARPNESS y
LUMA_KEY y
HIGH QUALITY SCALING - L1 y
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 1 4096
VIDEO_SURFACE_HEIGHT y 1 4096
CHROMA_TYPE y
LAYERS y 0 4
attribute name sup min max
-----------------------------------------------------
BACKGROUND_COLOR y
CSC_MATRIX y
NOISE_REDUCTION_LEVEL y 0.00 1.00
SHARPNESS_LEVEL y -1.00 1.00
LUMA_KEY_MIN_LUMA y
LUMA_KEY_MAX_LUMA y
媒体信息:
General
ID : 1 (0x1)
Complete name : 1.MTS
Format : BDAV
Format/Info : Blu-ray Video
File size : 3.99 GiB
Duration : 22mn 6s
Overall bit rate mode : Variable
Overall bit rate : 25.9 Mbps
Maximum Overall bit rate : 28.0 Mbps
Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Format settings, GOP : M=3, N=30
Codec ID : 27
Duration : 22mn 6s
Bit rate mode : Variable
Bit rate : 24.4 Mbps
Maximum bit rate : 26.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 59.940 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.197
Stream size : 3.77 GiB (95%)
Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : 129
Duration : 22mn 6s
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -34ms
Stream size : 60.7 MiB (1%)
Text
ID : 4608 (0x1200)
Menu ID : 1 (0x1)
Format : PGS
Codec ID : 144
Duration : 22mn 6s
Delay relative to video : -34ms
谢谢!
答案1
新的 Intel E3、E5 和 E7 CPU 芯片内置了 AVCHD 压缩/解压缩功能。较旧的 CPU 可能内置了,也可能没有。Windows 可能知道如何访问此类功能,而 Linux 的默认内核中可能还没有此功能。