[HebrewHammer]

Hi,

thanks for this addon! 
I've got a problem when running it on LibreELEC (official): 9.0.2 (RPi2.arm).
When I start the stream over LMS or even the plugin, the stream stops after 2 seconds.
In kodi.log i've got this:

code:


2020-05-24 17:15:06.804 T:1609253744  NOTICE: plugin.audio.squeezebox --> play started by lms server

2020-05-24 17:15:06.999 T:1155478384   ERROR: Init: Error creating demuxer

2020-05-24 17:15:07.161 T:1155478384  NOTICE: CDVDAudioCodecFFmpeg::Open() Successful opened audio decoder pcm_s16le

2020-05-24 17:15:08.071 T:1609253744  NOTICE: plugin.audio.squeezebox --> playlist changed on lms server

2020-05-24 17:15:08.243 T:1609253744  NOTICE: plugin.audio.squeezebox --> clearing playlist...

2020-05-24 17:15:08.428 T:1084146544   ERROR: CFileCache:rocess - Error 0 seeking. Seek returned -1

2020-05-24 17:15:08.429 T:1163871088   ERROR: Init: Error creating demuxer

2020-05-24 17:15:08.532 T:1163871088  NOTICE: CDVDAudioCodecFFmpeg::Open() Successful opened audio decoder pcm_s16le

2020-05-24 17:15:09.730 T:1609253744  NOTICE: plugin.audio.squeezebox --> playback stopped

 

it seems that libreelec cannot play the empty pcm stream which is produced by the plugin. 
I already found the right section to change that in httpproxy.py but I don't know much about the parameters to set for an e.g. MP3 stream.

python:


        # always add 2 seconds of additional duration to solve crossfade issues

        duration += 2

        numsamples = 44100 * duration

        channels = 2

        samplerate = 44100

        bitspersample = 16



        # Generate format chunk

        format_chunk_spec = "<4sLHHLLHH"

        format_chunk = struct.pack(

            format_chunk_spec,

            "fmt ",  # Chunk id

            16,  # Size of this chunk (excluding chunk id and this field)

            1,  # Audio format, 1 for PCM

            channels,  # Number of channels

            samplerate,  # Samplerate, 44100, 48000, etc.

            samplerate * channels * (bitspersample / 8),  # Byterate

            channels * (bitspersample / 8),  # Blockalign

            bitspersample,  # 16 bits for two byte samples, etc.

        )

        # Generate data chunk

        data_chunk_spec = "<4sL"

        datasize = numsamples * channels * (bitspersample / 8)

        data_chunk = struct.pack(

            data_chunk_spec,

            "data",  # Chunk id

            int(datasize),  # Chunk size (excluding chunk id and this field)

        )

        sum_items = [

            #"WAVE" string following size field

            4,

            #"fmt " + chunk size field + chunk size

            struct.calcsize(format_chunk_spec),

            # Size of data chunk spec + data size

            struct.calcsize(data_chunk_spec) + datasize

        ]

        # Generate main header

        all_cunks_size = int(sum(sum_items))

        main_header_spec = "<4sL4s"

        main_header = struct.pack(

            main_header_spec,

            "RIFF",

            all_cunks_size,

            "WAVE"

        )

can someone help me with this parameters (header, chuck etc). it should send out an mp3 stream.

Thanks 
Börny

I get a lot of demuxer errors too and it still works for me. I'm not really sure what's cause them but it doesn't seem to break the plugin.

It sounds like you may be running into the "onPlayBackStopped" issue, have you tried that fix?

Just for future reference -

I do not know what is actually causing the issue nor have I really looked or tracked Kodi's messaging, but commenting out:

python:


def onPlayBackStopped(self):

        '''Kodi event fired when playback is stopped'''

        if self.is_playing:

            self.lmsserver.stop()

            log_msg("playback stopped")

        self.is_playing = False

from the plugin's player_monitor.py corrected my afore mentioned issue of the playback being forced stopped.