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  • 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 !

    


  • Is Apple Video Encoder (hevc) Lossless ?

    22 décembre 2020, par Mahnoor Khan

    I want to know if Apple Video Encoder for iOS supports lossless compression or not with hevc (h265) codec ? If yes, what are the compression settings for it ?

    


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