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    #1

    Amazon bitrate low

    Anyone else notice the bitrate is halved with amazon? Other software is producing much higher bitrate from same source. Is there anyway to change this? Im set at the highest for both audio and video...
    Tags: None
    #2
    Originally posted by slottedpig View Post
    Anyone else notice the bitrate is halved with amazon? Other software is producing much higher bitrate from same source. Is there anyway to change this? Im set at the highest for both audio and video...
    Can you share more info? Like:
    1. Are you downloading the same video codec (H264 or H265) on both StreamFab and the other product? (NOTE: if you are downloading H264 with one, and H265 with the other, you will see different bit rates, this is expected).
    2. What title are you having the issue with?
    3. Is it just certain titles? or all?
    4. Are you talking video or audio bitrate?
    5. What bit rates are you seeing?
    6. Can you share your settings under VIP Settings for Video Codec, Audio Codec, and video resolution.
    7. Can you use MediaInfo and share the info about the two copies you are comparing? (helpful to see the differences)
    And I'm sure the developers would love it if you can share your logs so they can take a look.


    The only settings in StreamFab we can select that impacts Amazon are Video Codec, Audio Codec, and video resolution.
    Last edited by KidJoe; 01-05-2022, 03:14 PM.

    Comment

      #3
      Originally posted by KidJoe View Post
      Can you share more info? Like:
      1. Are you downloading the same video codec (H264 or H265) on both StreamFab and the other product? (NOTE: if you are downloading H264 with one, and H265 with the other, you will see different bit rates, this is expected).
      2. What title are you having the issue with?
      3. Is it just certain titles? or all?
      4. Are you talking video or audio bitrate?
      5. What bit rates are you seeing?
      6. Can you share your settings under VIP Settings for Video Codec, Audio Codec, and video resolution.
      7. Can you use MediaInfo and share the info about the two copies you are comparing? (helpful to see the differences)
      And I'm sure the developers would love it if you can share your logs so they can take a look.


      The only settings in StreamFab we can select that impacts Amazon are Video Codec, Audio Codec, and video resolution.
      Ok so as follows here are my VIP settings:

      Amazon Region (US)
      HBO Region EU (Auto)
      Video Codec (H264)
      Audio Codec (EAC3/AC3)
      Video Resolution (1080p)
      Remux into file for the subtitles
      GPU Acceleration is on

      I am pasting the 2 txt files one for the streamfab download and the other for the script downloader.

      StreamFAB:

      General
      Complete name : Ghostbusters Afterlife_StreamFab.mp4
      Format : MPEG-4
      Format profile : Base Media
      Codec ID : isom (isom/iso2/avc1/mp41)
      File size : 3.58 GiB
      Duration : 2 h 3 min
      Overall bit rate : 4 139 kb/s
      Collection : Ghostbusters: Afterlife
      Track name : Ghostbusters: Afterlife
      Description : When a single mom and her kids arrive in a small town, they begin to discover their connection to the original ghostbusters and the secret legacy their grandfather left behind.
      Recorded date : 2021
      Writing application : Lavf58.76.100
      Cover : Yes

      Video
      ID : 1
      Format : AVC
      Format/Info : Advanced Video Codec
      Format profile : High@L4
      Format settings : CABAC / 4 Ref Frames
      Format settings, CABAC : Yes
      Format settings, Reference frames : 4 frames
      Codec ID : avc1
      Codec ID/Info : Advanced Video Coding
      Duration : 2 h 3 min
      Bit rate : 3 494 kb/s
      Width : 1 920 pixels
      Height : 800 pixels
      Display aspect ratio : 2.40:1
      Frame rate mode : Constant
      Frame rate : 23.976 (24000/1001) FPS
      Color space : YUV
      Chroma subsampling : 4:2:0
      Bit depth : 8 bits
      Scan type : Progressive
      Bits/(Pixel*Frame) : 0.095
      Stream size : 3.02 GiB (84%)
      Color range : Limited
      Color primaries : BT.709
      Transfer characteristics : BT.709
      Matrix coefficients : BT.709
      Codec configuration box : avcC

      Audio
      ID : 3
      Format : E-AC-3
      Format/Info : Enhanced AC-3
      Commercial name : Dolby Digital Plus
      Codec ID : ec-3
      Duration : 2 h 3 min
      Bit rate mode : Constant
      Bit rate : 640 kb/s
      Channel(s) : 6 channels
      Channel layout : L R C LFE Ls Rs
      Sampling rate : 48.0 kHz
      Frame rate : 31.250 FPS (1536 SPF)
      Compression mode : Lossy
      Stream size : 567 MiB (15%)
      Title : English
      Language : English
      Service kind : Complete Main
      Default : Yes
      Alternate group : 1

      Script Downloader:

      General
      Unique ID : 177311587346197671148967421780202248661 (0x8564F834CD3175DAED323300451E59D5)
      Complete name : Ghostbusters Afterlife_Script.mp4
      Format : Matroska
      Format version : Version 4
      File size : 6.16 GiB
      Duration : 2 h 4 min
      Overall bit rate : 7 089 kb/s
      Encoded date : UTC 2022-01-04 03:31:05
      Writing application : mkvmerge v63.0.0 ('Everything') 64-bit
      Writing library : libebml v1.4.2 + libmatroska v1.6.4
      FileExtension_Invalid : mkv mk3d mka mks

      Video
      ID : 1
      Format : AVC
      Format/Info : Advanced Video Codec
      Format profile : High@L4
      Format settings : CABAC / 4 Ref Frames
      Format settings, CABAC : Yes
      Format settings, Reference frames : 4 frames
      Codec ID : V_MPEG4/ISO/AVC
      Duration : 2 h 4 min
      Bit rate mode : Constant
      Bit rate : 6 447 kb/s
      Nominal bit rate : 10 000 kb/s
      Width : 1 920 pixels
      Height : 800 pixels
      Display aspect ratio : 2.40:1
      Frame rate mode : Constant
      Frame rate : 23.976 (24000/1001) FPS
      Color space : YUV
      Chroma subsampling : 4:2:0
      Bit depth : 8 bits
      Scan type : Progressive
      Bits/(Pixel*Frame) : 0.175
      Stream size : 5.60 GiB (91%)
      Default : Yes
      Forced : No
      Color range : Limited
      Color primaries : BT.709
      Transfer characteristics : BT.709
      Matrix coefficients : BT.709

      Audio
      ID : 2
      Format : E-AC-3
      Format/Info : Enhanced AC-3
      Commercial name : Dolby Digital Plus
      Codec ID : A_EAC3
      Duration : 2 h 4 min
      Bit rate mode : Constant
      Bit rate : 640 kb/s
      Channel(s) : 6 channels
      Channel layout : L R C LFE Ls Rs
      Sampling rate : 48.0 kHz
      Frame rate : 31.250 FPS (1536 SPF)
      Compression mode : Lossy
      Stream size : 569 MiB (9%)
      Title : English
      Language : English
      Service kind : Complete Main
      Default : No
      Forced : No

      Text #1
      ID : 3
      Format : UTF-8
      Codec ID : S_TEXT/UTF8
      Codec ID/Info : UTF-8 Plain Text
      Duration : 2 h 3 min
      Bit rate : 48 b/s
      Count of elements : 1694
      Stream size : 43.8 KiB (0%)
      Title : English [SDH]
      Language : English
      Default : No
      Forced : No

      Text #2
      ID : 4
      Format : UTF-8
      Codec ID : S_TEXT/UTF8
      Codec ID/Info : UTF-8 Plain Text
      Duration : 1 h 58 min
      Bit rate : 39 b/s
      Count of elements : 1185
      Stream size : 34.1 KiB (0%)
      Title : English
      Language : English
      Default : No
      Forced : No

      Text #3
      ID : 5
      Format : UTF-8
      Codec ID : S_TEXT/UTF8
      Codec ID/Info : UTF-8 Plain Text
      Duration : 2 h 2 min
      Bit rate : 34 b/s
      Count of elements : 1123
      Stream size : 30.7 KiB (0%)
      Title : French
      Language : French
      Default : No
      Forced : No

      Text #4
      ID : 6
      Format : UTF-8
      Codec ID : S_TEXT/UTF8
      Codec ID/Info : UTF-8 Plain Text
      Duration : 2 h 2 min
      Bit rate : 38 b/s
      Count of elements : 1183
      Stream size : 34.8 KiB (0%)
      Title : Italian
      Language : Italian
      Default : No
      Forced : No

      Text #5
      ID : 7
      Format : UTF-8
      Codec ID : S_TEXT/UTF8
      Codec ID/Info : UTF-8 Plain Text
      Duration : 2 h 2 min
      Bit rate : 36 b/s
      Count of elements : 1149
      Stream size : 32.9 KiB (0%)
      Title : Brazilian Portuguese
      Language : Portuguese
      Default : No
      Forced : No

      Text #6
      ID : 8
      Format : UTF-8
      Codec ID : S_TEXT/UTF8
      Codec ID/Info : UTF-8 Plain Text
      Duration : 2 h 2 min
      Bit rate : 36 b/s
      Count of elements : 1196
      Stream size : 32.5 KiB (0%)
      Title : Spanish
      Language : Spanish
      Default : No
      Forced : No

      How exactly does streamfab work? Does it pull directly from the CDN or is it a situation where it converts after the fact. It looks to me like its pulling the 720P file then converting to 1080 to get around the DRM issues that started on Dec 7. This may be the discrepancy between the two files. I dont know where my log files are, but id love to put them here for the devs.

      Comment

        #4
        Originally posted by slottedpig View Post

        Ok so as follows here are my VIP settings:

        Amazon Region (US)
        HBO Region EU (Auto)
        Video Codec (H264)
        Audio Codec (EAC3/AC3)
        Video Resolution (1080p)
        Remux into file for the subtitles
        GPU Acceleration is on

        I am pasting the 2 txt files one for the streamfab download and the other for the script downloader.

        [FILE SPECS REMOVED FROM QUOTE]

        How exactly does streamfab work? Does it pull directly from the CDN or is it a situation where it converts after the fact. It looks to me like its pulling the 720P file then converting to 1080 to get around the DRM issues that started on Dec 7. This may be the discrepancy between the two files. I dont know where my log files are, but id love to put them here for the devs.
        Both files are AVC but they appear to be using different codecs. The "Script" one is MPEG4, the StreamFab is AVC/H264. Using different codecs can account for the video bit rate differences. But I'm not sure if that is really what is happening here. I wonder if using FFMpeg against the files ( ffprobe -show_streams -i "file.mp4" ) to get more details might reveal something else?

        I don't know what the process is behind the scenes on either StreamFab or other tools so I can't explain that. When I tried a competing product before December 1, the downloads from it and StreamFab were identical when I selected the same resolution and codec. And by identical, I mean same video bit rates and codecs, and audio when viewing with MediaInfo. So I don't expect StreamFab is re-encoding at all. I don't know what your script option does so I can't speak to it.

        With StreamFab 5.0.0.8 and 5.0.0.9 they did implemented a work around that involved having to re-encode after download (it gave a pop-up message when it had to do this) but this was only a few titles and didn't happen often for me. That seems to be fixed with 5.0.1.3 and 5.0.1.4 based on the release notes for those versions, and I did not see the pop up when I re-downloaded those titles.


        As for the logs, see post #3 of -> https://forum.dvdfab.cn/forum/softwa...-streamfab-faq
        Last edited by KidJoe; 01-05-2022, 06:56 PM.

        Comment

          #5
          This was a known issue before.....Amazon is providing a lower quality stream to the browsers than to other devices. The script is not using the Chrome CDM, so is able to access higher quality streams....not much Streamfab can do to change that. It's not unique to Amazon as Netflix has also done it in the past. Normally, after thousands of complaints, Amazon will adjust the quality, but I wouldn't count on it this time....
          Welcome to the wonderful world of DRM.

          Both files are using the same Codec, which wouldn't matter anyway. You are only downloading the file...not encoding it.
          Just keep in mind, for any given title, many streams exist. I believe the latest episodes of The Wheel of Time have 21 different video streams. Multiple streams for each resolution, for VBR or CBR and for H264 or H265. A person using a script can usually choose from any of the above. A browser usually gets one stream per resolution to choose from.

          Comment

            #6
            Originally posted by jimc115 View Post
            This was a known issue before.....Amazon is providing a lower quality stream to the browsers than to other devices. The script is not using the Chrome CDM, so is able to access higher quality streams....not much Streamfab can do to change that. It's not unique to Amazon as Netflix has also done it in the past. Normally, after thousands of complaints, Amazon will adjust the quality, but I wouldn't count on it this time....
            Welcome to the wonderful world of DRM.

            Both files are using the same Codec, which wouldn't matter anyway. You are only downloading the file...not encoding it.
            Just keep in mind, for any given title, many streams exist. I believe the latest episodes of The Wheel of Time have 21 different video streams. Multiple streams for each resolution, for VBR or CBR and for H264 or H265. A person using a script can usually choose from any of the above. A browser usually gets one stream per resolution to choose from.
            You are correct about this, funny thing is comparing the files running side by side, you cant tell the difference anyway accept for when it is extremely dark. Honestly its a non-issue and tbh the lower file size is better for streaming when not at home. I suppose if bitrate is important we should get the bluray and work with that LOL. I was just checking to make sure I didnt have a setting somewhere to get more quality out of it.

            Comment

              #7
              Originally posted by slottedpig View Post

              You are correct about this, funny thing is comparing the files running side by side, you cant tell the difference anyway accept for when it is extremely dark. Honestly its a non-issue and tbh the lower file size is better for streaming when not at home. I suppose if bitrate is important we should get the bluray and work with that LOL. I was just checking to make sure I didnt have a setting somewhere to get more quality out of it.
              AGREE, for my purposes, I prefer the moderate bitrate 1080p version, although an option might be nice, it would complicate the interface.

              Comment

                #8
                Originally posted by slottedpig View Post

                Ok so as follows here are my VIP settings:

                Amazon Region (US)
                HBO Region EU (Auto)
                Video Codec (H264)
                Audio Codec (EAC3/AC3)
                Video Resolution (1080p)
                Remux into file for the subtitles
                GPU Acceleration is on

                I am pasting the 2 txt files one for the streamfab download and the other for the script downloader.

                StreamFAB:

                General
                Complete name : Ghostbusters Afterlife_StreamFab.mp4
                Format : MPEG-4
                Format profile : Base Media
                Codec ID : isom (isom/iso2/avc1/mp41)
                File size : 3.58 GiB
                Duration : 2 h 3 min
                Overall bit rate : 4 139 kb/s
                Collection : Ghostbusters: Afterlife
                Track name : Ghostbusters: Afterlife
                Description : When a single mom and her kids arrive in a small town, they begin to discover their connection to the original ghostbusters and the secret legacy their grandfather left behind.
                Recorded date : 2021
                Writing application : Lavf58.76.100
                Cover : Yes

                Video
                ID : 1
                Format : AVC
                Format/Info : Advanced Video Codec
                Format profile : High@L4
                Format settings : CABAC / 4 Ref Frames
                Format settings, CABAC : Yes
                Format settings, Reference frames : 4 frames
                Codec ID : avc1
                Codec ID/Info : Advanced Video Coding
                Duration : 2 h 3 min
                Bit rate : 3 494 kb/s
                Width : 1 920 pixels
                Height : 800 pixels
                Display aspect ratio : 2.40:1
                Frame rate mode : Constant
                Frame rate : 23.976 (24000/1001) FPS
                Color space : YUV
                Chroma subsampling : 4:2:0
                Bit depth : 8 bits
                Scan type : Progressive
                Bits/(Pixel*Frame) : 0.095
                Stream size : 3.02 GiB (84%)
                Color range : Limited
                Color primaries : BT.709
                Transfer characteristics : BT.709
                Matrix coefficients : BT.709
                Codec configuration box : avcC

                Audio
                ID : 3
                Format : E-AC-3
                Format/Info : Enhanced AC-3
                Commercial name : Dolby Digital Plus
                Codec ID : ec-3
                Duration : 2 h 3 min
                Bit rate mode : Constant
                Bit rate : 640 kb/s
                Channel(s) : 6 channels
                Channel layout : L R C LFE Ls Rs
                Sampling rate : 48.0 kHz
                Frame rate : 31.250 FPS (1536 SPF)
                Compression mode : Lossy
                Stream size : 567 MiB (15%)
                Title : English
                Language : English
                Service kind : Complete Main
                Default : Yes
                Alternate group : 1

                Script Downloader:

                General
                Unique ID : 177311587346197671148967421780202248661 (0x8564F834CD3175DAED323300451E59D5)
                Complete name : Ghostbusters Afterlife_Script.mp4
                Format : Matroska
                Format version : Version 4
                File size : 6.16 GiB
                Duration : 2 h 4 min
                Overall bit rate : 7 089 kb/s
                Encoded date : UTC 2022-01-04 03:31:05
                Writing application : mkvmerge v63.0.0 ('Everything') 64-bit
                Writing library : libebml v1.4.2 + libmatroska v1.6.4
                FileExtension_Invalid : mkv mk3d mka mks

                Video
                ID : 1
                Format : AVC
                Format/Info : Advanced Video Codec
                Format profile : High@L4
                Format settings : CABAC / 4 Ref Frames
                Format settings, CABAC : Yes
                Format settings, Reference frames : 4 frames
                Codec ID : V_MPEG4/ISO/AVC
                Duration : 2 h 4 min
                Bit rate mode : Constant
                Bit rate : 6 447 kb/s
                Nominal bit rate : 10 000 kb/s
                Width : 1 920 pixels
                Height : 800 pixels
                Display aspect ratio : 2.40:1
                Frame rate mode : Constant
                Frame rate : 23.976 (24000/1001) FPS
                Color space : YUV
                Chroma subsampling : 4:2:0
                Bit depth : 8 bits
                Scan type : Progressive
                Bits/(Pixel*Frame) : 0.175
                Stream size : 5.60 GiB (91%)
                Default : Yes
                Forced : No
                Color range : Limited
                Color primaries : BT.709
                Transfer characteristics : BT.709
                Matrix coefficients : BT.709

                Audio
                ID : 2
                Format : E-AC-3
                Format/Info : Enhanced AC-3
                Commercial name : Dolby Digital Plus
                Codec ID : A_EAC3
                Duration : 2 h 4 min
                Bit rate mode : Constant
                Bit rate : 640 kb/s
                Channel(s) : 6 channels
                Channel layout : L R C LFE Ls Rs
                Sampling rate : 48.0 kHz
                Frame rate : 31.250 FPS (1536 SPF)
                Compression mode : Lossy
                Stream size : 569 MiB (9%)
                Title : English
                Language : English
                Service kind : Complete Main
                Default : No
                Forced : No

                Text #1
                ID : 3
                Format : UTF-8
                Codec ID : S_TEXT/UTF8
                Codec ID/Info : UTF-8 Plain Text
                Duration : 2 h 3 min
                Bit rate : 48 b/s
                Count of elements : 1694
                Stream size : 43.8 KiB (0%)
                Title : English [SDH]
                Language : English
                Default : No
                Forced : No

                Text #2
                ID : 4
                Format : UTF-8
                Codec ID : S_TEXT/UTF8
                Codec ID/Info : UTF-8 Plain Text
                Duration : 1 h 58 min
                Bit rate : 39 b/s
                Count of elements : 1185
                Stream size : 34.1 KiB (0%)
                Title : English
                Language : English
                Default : No
                Forced : No

                Text #3
                ID : 5
                Format : UTF-8
                Codec ID : S_TEXT/UTF8
                Codec ID/Info : UTF-8 Plain Text
                Duration : 2 h 2 min
                Bit rate : 34 b/s
                Count of elements : 1123
                Stream size : 30.7 KiB (0%)
                Title : French
                Language : French
                Default : No
                Forced : No

                Text #4
                ID : 6
                Format : UTF-8
                Codec ID : S_TEXT/UTF8
                Codec ID/Info : UTF-8 Plain Text
                Duration : 2 h 2 min
                Bit rate : 38 b/s
                Count of elements : 1183
                Stream size : 34.8 KiB (0%)
                Title : Italian
                Language : Italian
                Default : No
                Forced : No

                Text #5
                ID : 7
                Format : UTF-8
                Codec ID : S_TEXT/UTF8
                Codec ID/Info : UTF-8 Plain Text
                Duration : 2 h 2 min
                Bit rate : 36 b/s
                Count of elements : 1149
                Stream size : 32.9 KiB (0%)
                Title : Brazilian Portuguese
                Language : Portuguese
                Default : No
                Forced : No

                Text #6
                ID : 8
                Format : UTF-8
                Codec ID : S_TEXT/UTF8
                Codec ID/Info : UTF-8 Plain Text
                Duration : 2 h 2 min
                Bit rate : 36 b/s
                Count of elements : 1196
                Stream size : 32.5 KiB (0%)
                Title : Spanish
                Language : Spanish
                Default : No
                Forced : No

                How exactly does streamfab work? Does it pull directly from the CDN or is it a situation where it converts after the fact. It looks to me like its pulling the 720P file then converting to 1080 to get around the DRM issues that started on Dec 7. This may be the discrepancy between the two files. I dont know where my log files are, but id love to put them here for the devs.
                hello or found a script to download amzn? Can you mp me in relation to this. because the script is much better than streamfab why, streamfab does not take the real bitrate amzn is in vbr while the script takes the real stream is in cbr that's why the difference in video bitrate.

                Comment

                  #9
                  hello or found a script to download amzn? Because the script is much better than streamfab why, streamfab does not take the real bitrate amzn is in vbr while the script takes the real stream is in cbr that's why the difference in video bitrate.

                  Comment

                    #10
                    Because the script is much better than streamfab why, streamfab does not take the real bitrate amzn is in vbr while the script takes the real stream is in cbr that's why the difference in video bitrate.

                    Comment

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