stream_info.closed_captions returns "cc" instead of cc

[mbakholdina]

stream_info.closed_captions returns "cc" instead of cc without quotation marks

#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=768647,CODECS="avc1.4d001f,mp4a.40.2",RESOLUTION=480x270,CLOSED-CAPTIONS="cc",SUBTITLES="sub",AUDIO="aud"
http://10.129.6.151:8080/dump/video_4/video_4.m3u8

[cdunklau]

Here's a reproduction for this. I suspect the ultimate culprit is that the parser appears to only deal with strings, so it has no real notion of types (e.g. quoted-string, enumerated-string).

import pytest

import m3u8

SIMPLE_STREAM_INF = """#EXTM3U
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=768647,CODECS="avc1.4d001f,mp4a.40.2",RESOLUTION=480x270,CLOSED-CAPTIONS="cc",SUBTITLES="sub",AUDIO="aud"
http://10.129.6.151:8080/dump/video_4/video_4.m3u8
"""

@pytest.fixture
def stream_inf():
    stream_inf_tags = m3u8.loads(SIMPLE_STREAM_INF).playlists
    assert len(stream_inf_tags) == 1
    return stream_inf_tags[0]


def test_codecs_not_quoted(stream_inf):
    assert stream_inf.stream_info.codecs == 'avc1.4d001f,mp4a.40.2'

def test_closed_captions_not_quoted(stream_inf):
    assert stream_inf.stream_info.closed_captions == 'cc'

The codecs aren't quoted, but the closed captions id is:

repro_cc_not_quoted.py .Fxx                                                  [100%]

===================================== FAILURES =====================================
_________________________ test_closed_captions_not_quoted __________________________

stream_inf = <m3u8.model.Playlist object at 0x10ab00240>

    def test_closed_captions_not_quoted(stream_inf):
>       assert stream_inf.stream_info.closed_captions == 'cc'
E       assert '"cc"' == 'cc'
E         - "cc"
E         + cc

repro_cc_not_quoted.py:22: AssertionError
================== 1 failed, 1 passed, 2 xfailed in 0.13 seconds ===================