Sergey Krashevich
2b7682cdb3
- replace traditional for loop with range-based for loop for clarity
refactor(ffmpeg): simplify cut function loop
- utilize range-based for loop instead of traditional for loop
refactor(ring): update API response mapping type
- change map type from `interface{}` to `any` for better type safety
refactor(stream): handle nil source in NewStream
- add nil check for source elements before processing
refactor(webrtc): unify payload handling in GetToken
- change map type from `interface{}` to `any` for consistency
refactor(ascii): optimize nested loops in Write function
- replace traditional for loops with range-based for loops for readability
refactor(bits): enhance readability in Reader methods
- replace traditional for loops with range-based for loops in Read functions
refactor(h264): modernize loop structures in DecodeConfig
- switch to range-based for loops for cleaner code
refactor(h265): streamline profile_tier_level loops
- utilize range-based for loops instead of traditional for loops
chore(core): remove commented-out test function for clarity
refactor(core): simplify RandString function loop
- change traditional for loop to range-based for loop
refactor(flvt): optimize timestamp handling in TestTimeToRTP
- switch to range-based for loop for iterating frames
refactor(nest): improve error handling in ExchangeSDP
- format error message with printf-style formatting for clarity
refactor(tapo): enhance securityEncode function
- change traditional for loop to range-based for loop for readability
fix(tcp): correct masking in websocket Write method
- replace traditional for loop with range-based for loop
refactor(tutk): modernize encoding loops in crypto functions
- utilize range-based for loops for better readability
refactor(tuya): unify data types in MQTT message struct
- change map type from `interface{}` to `any` for consistency
refactor(webrtc): standardize codec registration
- change map type from `interface{}` to `any` for type safety
refactor(yaml): simplify Unmarshal function signature
- update parameter type from `interface{}` to `any` for better clarity
Fragmented MP4
ffmpeg -i "rtsp://..." -movflags +frag_keyframe+separate_moof+default_base_moof+empty_moov -frag_duration 1 -c copy -t 5 sample.mp4
- movflags frag_keyframe Start a new fragment at each video keyframe.
- frag_duration duration Create fragments that are duration microseconds long.
- movflags separate_moof Write a separate moof (movie fragment) atom for each track.
- movflags default_base_moof Similarly to the omit_tfhd_offset, this flag avoids writing the absolute base_data_offset field in tfhd atoms, but does so by using the new default-base-is-moof flag instead.
https://ffmpeg.org/ffmpeg-formats.html#Options-13
HEVC
| Browser | avc1 | hvc1 | hev1 |
|---|---|---|---|
| Mac Chrome | + | - | + |
| Mac Safari | + | + | - |
| iOS 15? | + | + | - |
| Mac Firefox | + | - | - |
| iOS 12 | + | - | - |
| Android 13 | + | - | - |
Useful links
- https://stackoverflow.com/questions/63468587/what-hevc-codec-tag-to-use-with-fmp4-hvc1-or-hev1
- https://stackoverflow.com/questions/32152090/encode-h265-to-hvc1-codec
- https://jellyfin.org/docs/general/clients/codec-support.html
- https://github.com/StaZhu/enable-chromium-hevc-hardware-decoding
- https://developer.mozilla.org/ru/docs/Web/Media/Formats/codecs_parameter
- https://gstreamer-devel.narkive.com/rhkUolp2/rtp-dts-pts-result-in-varying-mp4-frame-durations