Re: [Gnash-dev] RTMP NetStream Patch

[George Thomas]

On Tue, Jun 18, 2013 at 6:40 PM, Sandro Santilli <...> wrote:
> On Tue, Jun 18, 2013 at 06:33:38PM +0530, George Thomas wrote:
>> Hi,
>>
>> I was able to get a streaming red5 server applying the patch I have
>> attached. I used the oflademo test case to get this done from red5.
>>
>> oflademo.as has been added to do the testing.
>>
>> I am unaware of how to proceed from this position to make the
>> streaming proper. Wanted to write a test case to test it properly
>> using the video object but was not able to get  the test case which
>> works as a player using makeswf. Was able to hear sound in the process
>> but not video even in case of local streaming. Could someone help me
>> on this ?
>
> First of all: did you test the testcase against the proprietary player ?
>

Yeah I did and watched the wireshark outputs. Gnash previously did not have
createstream and play packets sent. I added a bit of code so that
those gets sent.

> The NetStream class expects NetConnection to provide an IOChannel as input
> stream. I don't know if this is applicable to RTMP streams. There are many
> debugging lines in the NetStream.cpp file, running the test with verbosity
> level 2 should give you more info.
>

Looking at the logs the same is happening.

2826:1] 441 FUNCTION: PASSED: RTMP connection - status Success
2826:1] 441 DEBUG: Loading native class NetStream
2826:1] 441 DEBUG: Calling remote method createStream
2826:1] 442 FUNCTION: In Run test
2826:1] 442 FUNCTION: Running test1
2826:1] 442 FUNCTION: NetStream contents
2826:1] 442 DEBUG: Calling remote method play
2826:1] 443 DEBUG: detachAuxStreamer called while not attached
2826:1] 443 SECURITY: Connecting to movie: hobbit_vp6
2826:1] 443 SECURITY: Checking security of URL
'file:///home/george/work/bldGnash/testsuite/misc-ming.all/hobbit_vp6'
2826:1] 444 SECURITY: Load of file
/home/george/work/bldGnash/testsuite/misc-ming.all/hobbit_vp6 granted
(under local sandbox
/home/george/work/bldGnash/testsuite/misc-ming.all/)
2826:1] 444 ERROR: Could not open file
/home/george/work/bldGnash/testsuite/misc-ming.all/hobbit_vp6: No such
file or directory
2826:1] 444 ERROR: Gnash could not get stream 'hobbit_vp6' from NetConnection
2826:1] 445 ERROR: NetStream.play(hobbit_vp6): failed starting playback
2826:1] 459 DEBUG: Received <invoke packet>

After this the video packets come from the server which it unaware of.

2826:1] 796 DEBUG: Received <metadata packet>
2826:1] 807 DEBUG: Received <audio packet>
2826:1] 827 ERROR: Incomplete packet received on channel 21
2826:1] 827 ERROR: Incomplete packet received on channel 21
2826:1] 827 ERROR: Incomplete packet received on channel 21
2826:1] 827 ERROR: Incomplete packet received on channel 21
2826:1] 827 ERROR: Incomplete packet received on channel 21
2826:1] 837 ERROR: Incomplete packet received on channel 21
2826:1] 837 ERROR: Incomplete packet received on channel 21
2826:1] 837 ERROR: Incomplete packet received on channel 21
2826:1] 837 ERROR: Incomplete packet received on channel 21
2826:1] 837 ERROR: Incomplete packet received on channel 21


To understand how streaming works, I tried writing a small player
using the video
object and makeswf but couldn't build a player which renders http or
local file. My idea was
to use http as a reference to understand the code flow and then to
mock the same for
RTMP.

var videoObj = new Video();
ncrtmp = new NetConnection();
ncrtmp.connect(null);
netStream = new NetStream (ncrtmp);
videoObj.attachVideo(netStream);
netStream.setBufferTime (3);
netStream.play ("hobbit_vp6.flv");

I was unable to compile this and make a test case to eveluate how the
streams gets created for video for both gnash and proprietary player.
Are there restrictions with makeswf to get this done or a lot is to be done
to get this done in actionscript?


> --strk;
>
>  http://strk.keybit.net
>

Regards,
George