README
¶
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
Documentation
¶
Index ¶
- Constants
- func ContentType(codecs []*core.Codec) string
- func MimeCodecs(codecs []*core.Codec) string
- func ParseCodecs(codecs string, parseAudio bool) (medias []*core.Media)
- func ParseQuery(query map[string][]string) []*core.Media
- func PatchVideoRotate(init []byte, degrees int) bool
- func PatchVideoScale(init []byte, scaleX, scaleY int) bool
- type Consumer
- type Keyframe
- type Muxer
Constants ¶
View Source
const ( MimeH264 = "avc1.640029" MimeH265 = "hvc1.1.6.L153.B0" MimeAAC = "mp4a.40.2" MimeFlac = "flac" MimeOpus = "opus" )
Variables ¶
This section is empty.
Functions ¶
func ContentType ¶ added in v1.7.0
func MimeCodecs ¶ added in v1.7.0
func ParseCodecs ¶ added in v1.6.0
func ParseQuery ¶ added in v1.1.0
ParseQuery - like usual parse, but with mp4 param handler
func PatchVideoRotate ¶ added in v1.6.1
PatchVideoRotate - update video track transformation matrix. Rotation supported by many players and browsers (except Safari). Scale has low support and better not to use it. Supported only 0, 90, 180, 270 degrees.
func PatchVideoScale ¶ added in v1.6.1
PatchVideoScale - update "Pixel Aspect Ratio" atom. Supported by many players and browsers (except Firefox). Supported only positive integers.
Types ¶
type Consumer ¶
type Consumer struct {
core.SuperConsumer
Rotate int `json:"-"`
ScaleX int `json:"-"`
ScaleY int `json:"-"`
// contains filtered or unexported fields
}
func NewConsumer ¶ added in v1.7.0
type Keyframe ¶ added in v1.7.0
type Keyframe struct {
core.SuperConsumer
// contains filtered or unexported fields
}
func NewKeyframe ¶ added in v1.7.0
type Muxer ¶
type Muxer struct {
// contains filtered or unexported fields
}
func (*Muxer) GetPayload ¶ added in v1.7.0
Source Files
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