[jiangxia]

The video stream is replayed in MP4 segments in order, 0000.mp4, 0002.mp4, 0004.mp4, ... which also can be downloaded freely, but it always shows black frames without sound by any media players, even MediaInfo can tell the attached MP4 file:
Format : MPEG-4 at 387 Kbps
Length : 94.9 KiB for 2s 11ms
Video #0 : AVC at 330 Kbps
Aspect : 400 x 224 (1.786) at 25.000 fps
Audio #0 : at 48.0 Kbps
Infos : 2 Channels, 44.1 KHz

I do not know how to decrypt and join these MP4 segments, help me, please!

Your assistance will be greatly appreciated.

[chap]

link video stream

[jiangxia]

link video stream

Thank you, sir. Here are some important links:
Original video link(maybe blocked in some countries): http://vip.sports.cntv.cn/video_10936.htm

Downloadable for 2400kbps = 1280x720
http://vod02.5plus.wscdns.com/vod/cntv/2014/09/19/9846/event_stats__3_2400.mp4/00/0000.mp4
http://vod02.5plus.wscdns.com/vod/cntv/2014/09/19/9846/event_stats__3_2400.mp4/00/0002.mp4
http://vod02.5plus.wscdns.com/vod/cntv/2014/09/19/9846/event_stats__3_2400.mp4/00/0004.mp4
... (numbered even, one mp4 segment 2 seconds)

http://nlvs02.nlv2.com/vod/cntv/2014/09/19/9846/event_stats__3_2400.mp4/adaptive.key?clientKey=f1142fbef14d72bd27e8bd3aacc 0b789

The file adaptive.key is attached, and it seems related to m3u8 here:
http://nlvs02.nlv2.com/play?url=/vod/cntv/2014/09/19/9846/event_stats__3_pc.mp4&auth_key=2afc69f34d38bc4020155d824678b0e3-1411148223-32-*.m3u8;*.ts;

The document tree is shown below:

<channel currentTime="0" defaultStreamIndex="0">

<streamDatas>

<streamData url="/vod/cntv/2014/09/19/9846/event_stats__3_2400.mp4" blockDuration="2000" bitrate="2457600" duration="120489">
<encryption method="aes-128" keyUrl="/vod/cntv/2014/09/19/9846/event_stats__3_2400.mp4" keyFileName="adaptive.key" keySecure="false" keyTransfer="secure" keyCookie="c9c7fd1f9355cc6f302189605e0d776a"/>
<video width="1280" height="720" fps="25.000000" bitrate="3069952" codec="avc1"/>
<audio channelCount="2" samplesRate="48000" sampleBitSize="16" bitrate="99328" codec="mp4a"/>
<httpservers>
<httpserver name="vod02.5plus.wscdns.com" port="80"/>
</httpservers>
</streamData>

<streamData url="/vod/cntv/2014/09/19/9846/event_stats__3_1600.mp4" blockDuration="2000" bitrate="1638400" duration="120507">
<encryption method="aes-128" keyUrl="/vod/cntv/2014/09/19/9846/event_stats__3_1600.mp4" keyFileName="adaptive.key" keySecure="false" keyTransfer="secure" keyCookie="c9c7fd1f9355cc6f302189605e0d776a"/>
<video width="960" height="540" fps="25.000000" bitrate="1564672" codec="avc1"/>
<audio channelCount="2" samplesRate="44100" sampleBitSize="16" bitrate="48128" codec="mp4a"/>
<httpservers>
<httpserver name="vod02.5plus.wscdns.com" port="80"/>
</httpservers>
</streamData>
<streamData url="/vod/cntv/2014/09/19/9846/event_stats__3_800.mp4" blockDuration="2000" bitrate="819200" duration="120507">
<encryption method="aes-128" keyUrl="/vod/cntv/2014/09/19/9846/event_stats__3_800.mp4" keyFileName="adaptive.key" keySecure="false" keyTransfer="secure" keyCookie="c9c7fd1f9355cc6f302189605e0d776a"/>
<video width="640" height="360" fps="25.000000" bitrate="731136" codec="avc1"/>
<audio channelCount="2" samplesRate="44100" sampleBitSize="16" bitrate="48128" codec="mp4a"/>
<httpservers>
<httpserver name="vod02.5plus.wscdns.com" port="80"/>
</httpservers>
</streamData>
<streamData url="/vod/cntv/2014/09/19/9846/event_stats__3_400.mp4" blockDuration="2000" bitrate="409600" duration="120507">
<encryption method="aes-128" keyUrl="/vod/cntv/2014/09/19/9846/event_stats__3_400.mp4" keyFileName="adaptive.key" keySecure="false" keyTransfer="secure" keyCookie="c9c7fd1f9355cc6f302189605e0d776a"/>
<video width="400" height="224" fps="25.000000" bitrate="367616" codec="avc1"/>
<audio channelCount="2" samplesRate="44100" sampleBitSize="16" bitrate="48128" codec="mp4a"/>
<httpservers>
<httpserver name="vod02.5plus.wscdns.com" port="80"/>
</httpservers>
</streamData>
</streamDatas>
</channel>

[peterpan]

You need to post the original link for the video stream and any login info, if needed, so we can play it on the browser.

[jiangxia]

You need to post the original link for the video stream and any login info, if needed, so we can play it on the browser.

Yes, sir. Here is the original link:
http://vip.sports.cntv.cn/video_10936.htm

Thank you, sir.

[peterpan]

No idea what this means m8! Maybe I'm geoblocked :(

http://i.imgur.com/DVkZPlbl.png

[hasomaso]

.cn

china vpn you need

[MOZ]

Check your PM.

[jiangxia]

No idea what this means m8! Maybe I'm geoblocked :(

http://i.imgur.com/DVkZPlbl.png

Yes, blocked. You need your VPN to play it.