Note
Audio and video parameters aren’t applicable to the level and should instead be set in each parameter.
| Parameter | Description | Available Values | Default Value |
|---|---|---|---|
| duration_precision | Specify the number of decimal accuracy for the duration of the playlist file. | Integer | 0 |
| segment_duration | Specify the duration to split output into segment files, measured in seconds. | Positive float number | 9.0 |
| fragment_duration | Specify the duration of fMP4 fragment inside of segment file, measured in seconds. | Positive integer number | equals to <segment_duration /> |
| pack_files | Specify whether to package output in compressed file. | yes, no | yes |
| pack_type | Specify the type of compressed file to package output. | tar, zip | tar |
| pack_each_stream | Specify whether or not to package each stream in its own file. | yes, no | no |
| encryption | Enable AES-128 encryption. | yes, no | no |
| encryption_method | Specify the encryption method used. | advanced_hls: aes-128-cbc, sample-aes fmp4_hls: aes-128-cbc, mpeg_cbcs, mpeg_cens, mpeg_cbc1, mpeg_cenc advanced_dash, advanced_mss, advanced_fmp4: mpeg_cbcs, mpeg_cens, mpeg_cbc1, mpeg_cenc | advanced_hls, fmp4_hls: aes-128-cbc advanced_fmp4, advanced_dash, advanced_mss: mpeg_cenc |
| encryption_key | Specify the encryption key. | 32 hexidecimal characters ([0-9a-f]) | none |
| encryption_key_file | URL to encryption key file. | Valid URL. | none |
| encryption_iv | Specify the encryption initialization vector. | 32 hexidecimal characters ([0-9a-f]). | aes-128-cbc – sequence number of the segment file, sample-aes – randomly generated value |
| segmenter | Specify which segmenter to use. | v1 – This is the segmenter bundled with FFMPEG and carries significant overhead (as much as 27% with a 364kbps file or 17.3% with a 864kbps file!), and generated several warnings. v2 – This is based on HTTP Live Segmenter tool. It carries with it the same overhead, but generates far fewer warnings. v3 – This version, we call tsparser was built in-house from the ground up to be optimized for our cloud infrastructure. This has significantly less overhead (5.8% with a 364kbps file or 3.8% with a 864kbps file), and does not generate any warnings. dolby_segmenter – Dolby Media Generator segmenter(dolby_segmenter) will update libfaac audio codec to dolby_aac, in case libfaac codec specified. In case copy specified as audio_codec then source audio codec will be tried. In case iframe stream requested then v3 segmenter wil be used. | |
| playlist_version | Specify the version of the m3u8 playlist file. | Integer(EXT-X-VERSION) | none |
| merge_small_segments | Merge the next chunk with the previous chunk if previous length is less than one second. | yes, no | no |
| dash_profile | Specify which dash output profile to use. | ondemand — urn:mpeg:dash:profile:isoff-on-demand:2011, live — urn:mpeg:dash:profile:isoff-live:2011, live_static — live with mpd@type=static | ondemand |
| cmaf_conformant | This will create an output that is CMAF conformant. | yes, no | no |
| reduce_structural_overhead | Perform reducing mpeg-ts structural overhead. | yes, no | yes |
| add_audio_only | Add an audio only stream to master HLS manifest. | yes, no | yes |
| init_extension | Initialization file's extension. | string (max length: 4 characters) | mp4 |
| segment_extension | Segment file's extension. | string (max length: 4 characters) | m4s |
| split_segments | Split output to segments | yes, no | yes |
| widevine_drm | Apply Widevine DRM for whole output | yes. no | no |
| playready_drm | Apply PlayReady DRM for whole output | yes. no | no |
| hls_manifests | Create HLS manifests | yes. no | yes |
| dash_manifests | Create DASH manifests | yes. no | yes |
| mss_manifests | Create MSS manifests | yes. no | no |
| segment_template | Select which SegmentTemplate placeholder will be used | number – $Number$ time – $Time$ | number |
| output_json | Upload output format processing summary to the output destination or the specified URL | yes, Valid URL | none |
| disable_alternate_source_index | Disable adding an alternate source index to the segment name | yes, no | no |
For pack_type parameter
<pack_type /> parameter is ignored if <pack_files /> is disabled.
For pack_each_stream parameter
<pack_each_stream /> parameter is ignored if <pack_files /> is disabled.
For dash_profile parameter
<dash_profile /> options available only for advanced_dash output.
For cmaf_conformant parameter
<cmaf_conformant /> feature available only for advanced_dash, fmp4_hls, advanced_fmp4, advanced_mss output formats.
For cmaf_conformant parameter
<cmaf_conformant /> feature not working with muxed streams.
For duration_precision parameter
<duration_precision /> parameter not available if parameter set to dolby_segmenter.
For reduce_structural_overhead parameter
<reduce_structural_overhead /> feature is available only for advanced_hss output format.
This feature is available only if set to v3
For add_audio_only parameter
<add_audio_only /> parameter is available only for advanced_hls, fmp4_hls, and advanced_fmp4 output formats.
It works only for unmuxed output, where audio and video are stored in separate variant streams.
For init_extension and segment_extension parameters
<init_extension /> and <segment_extension /> parameters are available only for fmp4_hls output format.
For fragment_duration parameter
<fragment_duration /> parameter is available only for advanced_fmp4 output format.
For widevine_drm and playready_drm parameters
<widevine_drm /> and <playready_drm /> parameters are available only for advanced_dash and dash manifests of advanced_fmp4 output formats.
For segment_template parameter
<segment_template /> parameter is available only for advanced_dash and advanced_fmp4 output formats.
Nielsen Metadata Settings
Note
This feature is available only for advanced_dash and advanced_hls output.