我无法在三星S3，Android版本：4.1.1，股票视频播放器上播放mp4视频（H.264 Baseline，AAC），但在VLC上播放。同样的视频播放Galaxy Beam，Android版：2.3.6，股票视频播放器。我想弄清楚为什么它不能在S3上播放。我在fie上运行了ffprobe和mediainfo：
ffprobe结果：
ffprobe version 0.11.1 Copyright (c) 2007-2012 the FFmpeg developers
built on Jan 25 2013 15:16:27 with llvm_gcc 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)
configuration: --prefix=/usr/local/Cellar/ffmpeg/0.11.1 --enable-shared --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --cc=/usr/bin/llvm-gcc --host-cflags='-Os -w -pipe -march=core2 -msse4 -mmacosx-version-min=10.7' --host-ldflags=-L/usr/local/lib --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
libavutil 51. 54.100 / 51. 54.100
libavcodec 54. 23.100 / 54. 23.100
libavformat 54. 6.100 / 54. 6.100
libavdevice 54. 0.100 / 54. 0.100
libavfilter 2. 77.100 / 2. 77.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '86535_360p_1301310230.mp4':
Metadata:
major_brand : isom
minor_version : 1
compatible_brands: isomavc1
creation_time : 2013-01-31 02:36:22
Duration: 00:03:49.53, start: 0.000000, bitrate: 799 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 699 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc
Metadata:
creation_time : 2013-01-31 02:34:00
handler_name : GPAC ISO Video Handler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 96000 Hz, stereo, s16, 95 kb/s
Metadata:
creation_time : 2013-01-31 02:36:22
handler_name : GPAC ISO Audio Handler
媒体信息结果：
General
Complete name : a.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 21.9 MiB
Duration : 3mn 49s
Overall bit rate mode : Variable
Overall bit rate : 799 Kbps
Encoded date : UTC 2013-01-31 02:36:22
Tagged date : UTC 2013-01-31 02:36:22
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3.0
Format settings, CABAC : No
Format settings, ReFrames : 3 frames
Format settings, GOP : M=1, N=30
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 3mn 49s
Bit rate : 700 Kbps
Maximum bit rate : 2 721 Kbps
Width : 640 pixels
Height : 360 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.127
Stream size : 19.1 MiB (88%)
Writing library : Zencoder Video Encoding System
Encoded date : UTC 2013-01-31 02:34:00
Tagged date : UTC 2013-01-31 02:36:22
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 3mn 49s
Bit rate mode : Variable
Bit rate : 96.0 Kbps
Maximum bit rate : 121 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 96.0 KHz
Compression mode : Lossy
Stream size : 2.62 MiB (12%)
Encoded date : UTC 2013-01-31 02:36:22
Tagged date : UTC 2013-01-31 02:36:22
我怀疑视频播放器对某些编解码器标头值更严格。级别设置为3.0，这应该是正确的。任何帮助解决这个问题都很感激！