因測試需要有一個可以在arm system play video audio 的player 我使用了ffmpeg 也做出arm版本有安裝 SDL SDL2 alsa-lib alsa-utils 及相關lib 但play mp3出現以下問題 [root@FriendlyARM opt]# ffplay g.mp3 ffplay version 2.8.2 Copyright (c) 2003-2015 the FFmpeg developers built with gcc 4.8.5 (crosstool-NG crosstool-ng-1.22.0) configuration: --enable-cross-compile --arch=arm --target-os=linux --enable-static --cc=arm-unknown-linux-gnueabi-gcc --enable-shared --enable-small --enable-gray --enable-libx264 --enable-gpl --prefix=/home/martin/new_rootfs/ --extra-cflags=-I/home/martin/new_rootfs/include --extra-ldflags=-L/home/martin/new_rootfs/lib libavutil 54. 31.100 / 54. 31.100 libavcodec 56. 60.100 / 56. 60.100 libavformat 56. 40.101 / 56. 40.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 40.101 / 5. 40.101 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 libpostproc 53. 3.100 / 53. 3.100 [mp3 @ 0x430004a0] Skipping 0 bytes of junk at 1064.= 0B f=0/0 Input #0, mp3, from 'g.mp3':aq= 0KB vq= 0KB sq= 0B f=0/0 Metadata: major_brand : M4A minor_version : 512 compatible_brands: isomiso2 title : 『?????』????　GODZILLA　by 伊福部 昭　-piano cover artist : mimiPianoClass date : 20140216 description : 伊福部 昭?1954年?映?『???』????書?下??????曲?、 ?????????-??編曲????。?譜?????手?入???。 : http://www.dlmarket.jp/products/detail/256708 : You can get the sheet music if you would like. comment : 伊福部 昭?1954年?映?『???』????書?下??????曲?、 ?????????-??編曲????。?譜?????手?入???。 : http://www.dlmarket.jp/products/detail/256708 : You can get the sheet music if you would like. encoder : Lavf54.63.104 Duration: 00:00:52.45, start: 0.025057, bitrate: 255 kb/s Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 255 kb/s SDL: could not set video mode - exiting ^^^ 我不知它說的video mode 設定是指那裡 我有翻過說明文件有加了以下path [root@FriendlyARM opt]# env TSLIB_ROOT=/usr/local/tslib TSLIB_TSDEVICE=/dev/input/event0 USER=root SDL_MOUSEDEV=/dev/input/event0 LD_LIBRARY_PATH=/usr/local/tslib/lib OLDPWD=/ TERMINFO=/usr/share/terminfo HOME=/ TSLIB_FBDEVICE=/dev/fb0 PS1=[\u@\h \W]\# TSLIB_PLUGINDIR=/usr/local/tslib/lib/ts TSLIB_CONSOLEDEVICE=none LOGNAME=root SDL_NOMOUSE=1 SDL_MOUSEDRV=TSLIB TERM=vt100 SDL_FBDEV=/dev/fb0 PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/share/alsa:/usr/local/tslib/bin TSLIB_CONFFILE=/usr/local/tslib/etc/ts.conf SHELL=/bin/sh SDL_VIDEODRIVER=fbcon PWD=/opt ALSA_CONFIG_PATH=/usr/share/alsa/alsa.conf TSLIB_CALIBFILE=/etc/pointercal 不是很明白SDL 要的video mode 是什麼 --

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