BBC HLS Feeds have been changed

[TheOldPresbyope]

A trick found on stackoverflow to detect video bitrate from his m3u8 file using ffprobe

Code:

ffprobe -print_format json -show_format -show_streams -show_error <filename_or_link>

So, for the BBC Radio One m3u8 link I get (eliding all the usual ffprobe/ffmpeg frontend output)

Code:

$ ffprobe -print_format json -show_format -show_streams -show_error http://as-hls-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_one/bbc_radio_one.isml/bbc_radio_one-audio%3d320000.norewind.m3u8
...
{
[hls @ 0x558ac0fa82c0] Skip ('#EXT-X-VERSION:3')
[hls @ 0x558ac0fa82c0] Skip ('## Created with Unified Streaming Platform(version=1.8.4)')
[hls @ 0x558ac0fa82c0] Skip ('#EXT-X-INDEPENDENT-SEGMENTS')
[hls @ 0x558ac0fa82c0] Skip ('#USP-X-TIMESTAMP-MAP:MPEGTS=1995876768,LOCAL=2023-10-29T00:16:06.400000Z')
[hls @ 0x558ac0fa82c0] Skip ('#EXT-X-PROGRAM-DATE-TIME:2023-10-29T00:16:06.400000Z')
[hls @ 0x558ac0fa82c0] Opening 'http://as-hls-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_one/bbc_radio_one.isml/bbc_radio_one-audio=320000-265396654.ts' for reading
[hls @ 0x558ac0fa82c0] Opening 'http://as-hls-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_one/bbc_radio_one.isml/bbc_radio_one-audio=320000-265396655.ts' for reading
Input #0, hls, from 'http://as-hls-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_one/bbc_radio_one.isml/bbc_radio_one-audio%3d320000.norewind.m3u8':
 Duration: N/A, start: 22189.208533, bitrate: N/A
 Program 0
   Metadata:
     variant_bitrate : 0
 Stream #0:0: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp
   Metadata:
     variant_bitrate : 0
   "streams": [
       {
           "index": 0,
           "codec_name": "aac",
           "codec_long_name": "AAC (Advanced Audio Coding)",
           "profile": "LC",
           "codec_type": "audio",
           "codec_tag_string": "[15][0][0][0]",
           "codec_tag": "0x000f",
           "sample_fmt": "fltp",
           "sample_rate": "48000",
           "channels": 2,
           "channel_layout": "stereo",
           "bits_per_sample": 0,
           "r_frame_rate": "0/0",
           "avg_frame_rate": "0/0",
           "time_base": "1/90000",
           "start_pts": 1997028768,
           "start_time": "22189.208533",
           "disposition": {
               "default": 0,
               "dub": 0,
               "original": 0,
               "comment": 0,
               "lyrics": 0,
               "karaoke": 0,
               "forced": 0,
               "hearing_impaired": 0,
               "visual_impaired": 0,
               "clean_effects": 0,
               "attached_pic": 0,
               "timed_thumbnails": 0
           },
           "tags": {
               "variant_bitrate": "0"
           }
       }
   ],
   "format": {
       "filename": "http://as-hls-ww-live.akamaized.net/pool_904/live/ww/bbc_radio_one/bbc_radio_one.isml/bbc_radio_one-audio%3d320000.norewind.m3u8",
       "nb_streams": 1,
       "nb_programs": 1,
       "format_name": "hls",
       "format_long_name": "Apple HTTP Live Streaming",
       "start_time": "22189.208533",
       "size": "598",
       "probe_score": 100
   }
}

I haven't played with the parameters available to ffprobe to see if the invocation can be simplified for audio streams.

Regards,
Kent