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• H.264 (MP4) video not play in IE9, but will play in Safari [closed]

  27 septembre 2011, par Austin S

  I have encoded a video using FFMPEG into three formats : WebM, MP4, and FLV. Chrome, Mozilla, and theoretically Opera (although I haven't tested it) should all use the WebM version. IE9, iOS devices, and Adriod should use the MP4 container. While all legacy browsers should default back to the flash version of the file. I'm using video-js to help serve the content. The content is set to preload and autoplay.

  I have found that everything is working as intended except for IE9, where all I get is the poster image and a white dot that typically spins indicating that the file is loading however it is not spinning in this scenario. The MP4 file opens in Safari, an iPad, an iPhone, and an Andriod - verifying that the file is infact legit.

  The following is the specs for the MP4 file when I stream it using VLC. I don't know if this is particularly useful, I'm just trying to provide as much detail as possible.

  VLC Codec Details

  • Stream 0

    Type : Video

    Codec : MPEG-4 Video (mp4v)

    Language : English

    Resolution : 480x270

    Frame rate : 2997

  • Stream 1

    Type : Audio

    Codec : MPEG AAC Audio (mp4a)

    Language : English

    Channels : Stereo

    Sample rate : 48000 Hz

  When accessing videojs.com from my coworkers computer, the video on their main page wouldn't play the video correctly in IE9, but we could hear the audio. When I went to another coworkers computer it played just fine. I'm wondering if IE9, or video-js, is tempermental depending on how updated your OS is.

  The fact that I'm working on XP with IE7 is making this all the more difficult to fix, so if you have any suggestions on what could point me in the right direction, I would greatly appreciate it !

  Thanks,

  Austin S

• ffmpeg transcoding move to mp4

  16 août 2022, par Paul

  I currently use windows free software called : AnyVideoConverter to convert my iPhone huge MOV files to MP4s that can be played on other devices via my plex server.
I want to automate that process so it runs in the background on one of my linux machines.
However I am struggling to get it working. Here is what I have so far.

  


  Original file details :
Duration : 00:00:13.53
Original Video : 40MB
Video details : Stream #0:0(und) : Video : hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bt709), 3840x2160, 23453 kb/s, 30 fps, 30 tbr, 600 tbn, 600 tbc (default)

  


  AnyVideoConverted file :
File Size : 5MB
Video Details : Stream #0:0(und) : Video : h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 3840x2160, 2870 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default)

  


  This format works great on all my devices

  


  So far the closes I managed to get to that is this ffmpeg command :

  


  ffmpeg -i original.mov -c:v libx264 -profile:v baseline -maxrate 3M -bufsize 3M -c:a aac -b:a 128k x264.mp4


File size:5MB
Video details :     Stream #0:0(und) : Video : h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 2160x3840, 3063 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)

  


  problem is that when I try to play it via plex I get :

  


  Playback Error : This server is not powerful enough to convert video

  


  What am I doing wrong here ?

  


  My knowledge of ffmpeg or video encoding/transcoding is zero. Can someone advise me how to get my mov files converted to mp4 so they can be played via plex without additional transcoding by plex and without reducing the resolution size of the converted video.

  


  Any pointers ?
Thanks

  


• Why does Apple support H.265 playback, but not when using HLS ? [closed]

  13 mars, par clark wu

  Apple devices (iPhone, iPad, macOS Safari) can natively play H.265 (HEVC) videos in .mp4 or .mov format. However, when I try to convert the same video to HLS, it fails to play. Here’s what I tested :

  


  Test Cases

  


  ✅ Directly playing H.265 .mp4 → Works fine

  


  ❌ H.265 + Opus → HLS (fMP4) → Fails

  


  ❌ H.265 + AAC → HLS (TS) → Fails

  


  ✅ H.264 + Opus → HLS fMP4 → Works fine (video + audio)

  


  ✅ H.264 + Opus → HLS TS → Video plays, but no audio

  


  ❌ H.265 + AAC → HLS fMP4 → Doesn’t play at all

  


  FFmpeg Commands Used

  


  1️⃣ H.265 + Opus (fMP4 segments)

  


  ffmpeg -i input.mp4 -c:v copy -c:a copy -hls_segment_type fmp4 -hls_time 10 -hls_list_size 0 -hls_flags independent_segments output.m3u8


  


  2️⃣ H.265 + AAC (TS segments)

  


  ffmpeg -i input.mp4 -c:v copy -c:a copy -hls_time 10 -hls_list_size 0 -hls_flags independent_segments output.m3u8


  


  Playback Attempts

  


  Vidstack.js player (Fails)

  


  Several online M3U8 players (All fail)

  


  Key Questions

  


  Why does Apple support H.265 in MP4 but not in HLS ?

  


  Is this an HLS specification limitation ?

  


  Does the audio codec (Opus / AAC) affect playback ?

  


  Does HLS require a specific HEVC profile/level ?

  


  Is HLS only compatible with AVC, not HEVC ?

  


  Looking for Answers

  


  Has anyone successfully played H.265 + HLS on Apple devices ?

  


  Are there any official Apple HLS specifications regarding HEVC support ?

  


  Possible workarounds or alternative solutions ?

  


  Would appreciate any insights or help from the community ! Thanks !