Hi Timo Rothenpieler
I have try to transcode the input rtmp stream use nvenc, It give me
the message bellow:
OS info:
[root@localhost ffmpeg]# cat /etc/redhat-release
CentOS Linux release 7.0.1406 (Core)
[root@localhost ffmpeg]#
[root@localhost NVIDIA_CUDA-7.0_Samples]# uname -m && cat /etc/*release
x86_64
CentOS Linux release 7.0.1406 (Core)
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/";
BUG_REPORT_URL="https://bugs.centos.org/";
CentOS Linux release 7.0.1406 (Core)
CentOS Linux release 7.0.1406 (Core)
[root@localhost release]# ./deviceQuery
./deviceQuery Starting...
CUDA Device Query (Runtime API) version (CUDART static linking)
Detected 1 CUDA Capable device(s)
Device 0: "Tesla M2090"
CUDA Driver Version / Runtime Version 7.0 / 7.0
CUDA Capability Major/Minor version number: 2.0
Total amount of global memory: 5375 MBytes (5636554752
bytes)
(16) Multiprocessors, ( 32) CUDA Cores/MP: 512 CUDA Cores
GPU Max Clock rate: 1301 MHz (1.30 GHz)
Memory Clock rate: 1848 Mhz
Memory Bus Width: 384-bit
L2 Cache Size: 786432 bytes
Maximum Texture Dimension Size (x,y,z) 1D=(65536), 2D=(65536,
65535), 3D=(2048, 2048, 2048)
Maximum Layered 1D Texture Size, (num) layers 1D=(16384), 2048 layers
Maximum Layered 2D Texture Size, (num) layers 2D=(16384, 16384), 2048
layers
Total amount of constant memory: 65536 bytes
Total amount of shared memory per block: 49152 bytes
Total number of registers available per block: 32768
Warp size: 32
Maximum number of threads per multiprocessor: 1536
Maximum number of threads per block: 1024
Max dimension size of a thread block (x,y,z): (1024, 1024, 64)
Max dimension size of a grid size (x,y,z): (65535, 65535, 65535)
Maximum memory pitch: 2147483647 bytes
Texture alignment: 512 bytes
Concurrent copy and kernel execution: Yes with 2 copy engine(s)
Run time limit on kernels: No
Integrated GPU sharing Host Memory: No
Support host page-locked memory mapping: Yes
Alignment requirement for Surfaces: Yes
Device has ECC support: Enabled
Device supports Unified Addressing (UVA): Yes
Device PCI Domain ID / Bus ID / location ID: 0 / 1 / 0
Compute Mode:
< Default (multiple host threads can use ::cudaSetDevice() with device
simultaneously) >
deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 7.0, CUDA Runtime
Version = 7.0, NumDevs = 1, Device0 = Tesla M2090
Result = PASS
[root@localhost release]#
=============================ffmpeg output message===============
[root@localhost ffmpeg]# ./x86/ffmpeg -v verbose -i rtmp://
192.168.100.5/live/liuqi -vcodec nvenc -b:v 2000k -s 800x480 -preset slow
-an a.mkv
ffmpeg version N-74455-g3afca32 Copyright (c) 2000-2015 the FFmpeg
developers
built with gcc 4.8.2 (GCC) 20140120 (Red Hat 4.8.2-16)
configuration: --enable-nvenc --enable-nonfree
libavutil 54. 30.100 / 54. 30.100
libavcodec 56. 57.100 / 56. 57.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 33.100 / 5. 33.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
[flv @ 0x25684c0] max_analyze_duration 5000000 reached at 5000000
microseconds st:0
Input #0, flv, from 'rtmp://192.168.100.5/live/liuqi':
Metadata:
Server : NGINX RTMP (github.com/arut/nginx-rtmp-module)
displayWidth : 1280
displayHeight : 720
fps : 20
profile :
level :
Duration: 00:00:00.00, start: 11886.384000, bitrate: N/A
Stream #0:0: Video: h264 (Baseline), 3 reference frames, yuv420p(tv),
1280x720 [SAR 1:1 DAR 16:9], 5120 kb/s, 8 fps, 8 tbr, 1k tbn, 16 tbc
File 'a.mkv' already exists. Overwrite ? [y/N] y
[graph 0 input from stream 0:0 @ 0x2592820] w:1280 h:720 pixfmt:yuv420p
tb:1/1000 fr:8/1 sar:1/1 sws_param:flags=2
[scaler for output stream 0:0 @ 0x25b0180] w:800 h:480 flags:'bicubic'
interl:0
[scaler for output stream 0:0 @ 0x25b0180] w:1280 h:720 fmt:yuv420p sar:1/1
-> w:800 h:480 fmt:yuv420p sar:16/15 flags:0x4
[nvenc @ 0x2591c20] 1 CUDA capable devices found
[nvenc @ 0x2591c20] [ GPU #0 - < Tesla M2090 > has Compute SM 2.0, NVENC
Not Available ]
[nvenc @ 0x2591c20] No NVENC capable devices found
Output #0, matroska, to 'a.mkv':
Metadata:
Server : NGINX RTMP (github.com/arut/nginx-rtmp-module)
displayWidth : 1280
displayHeight : 720
fps : 20
profile :
level :
Stream #0:0: Video: h264, 1 reference frame, none, q=2-31, 128 kb/s,
SAR 16:15 DAR 0:0, 8 fps
Metadata:
encoder : Lavc56.57.100 nvenc
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (nvenc))
Error while opening encoder for output stream #0:0 - maybe incorrect
parameters such as bit_rate, rate, width or height
[root@localhost ffmpeg]#
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