89376d3c4d
An updated version of PR #1027 That previous PR was done using 2021 code, and there were many changes in the codebase from there, so a rebase was needed and also some minor tweak here and there. But it's the same code, just reimplemented on a newer codebase. If you want to take a look at this in action, after building shaka packager with this PR's code included, try this commands in 3 different simultaneous bash sessions: 1. Video UDP input: `ffmpeg -f lavfi -re -i "testsrc=s=320x240:r=30,format=yuv420p" -c:v h264 -sc_threshold 0 -g 30 -keyint_min 30 -r 30 -a53cc 1 -b:v 150k -preset ultrafast -r 30 -f mpegts "udp://127.0.0.1:10000?pkt_size=1316"` 2. WebVTT UDP input: `for sec in $(seq 0 9999) ; do printf "%02d:%02d.000 --> %02d:%02d.000\ntest second ${sec}\n\n" "$(( ${sec} / 60 ))" "$(( ${sec} % 60 ))" "$(( (${sec} + 1) / 60 ))" "$(( (${sec} + 1) % 60 ))" ; sleep 1 ; done > /dev/udp/127.0.0.1/12345` 3. shaka packager command line: `timeout 60 path/to/build/packager/packager 'in=udp://127.0.0.1:10000?timeout=8000000,stream_selector=0,init_segment=240_init.m4s,segment_template=240_$Number%09d$.m4s,bandwidth=150000' 'in=udp://127.0.0.1:12345?timeout=8000000,stream_selector=0,input_format=webvtt,format=webvtt+mp4,init_segment=text_init.m4s,segment_template=text_$Number%09d$.m4s,language=eng,dash_roles=subtitle' --mpd_output ./manifest.mpd --segment_duration 3.2 --suggested_presentation_delay 3.2 --min_buffer_time 3.2 --minimum_update_period 3.2 --time_shift_buffer_depth 60 --preserved_segments_outside_live_window 1 --default_language=eng --dump_stream_info 2>&1` Note the added `input_format=webvtt` to the shaka packager command's second selector. That's new from this PR. If you don't use that, shaka's format autodetection will not detect the webvtt format from the input, as explained in https://github.com/shaka-project/shaka-packager/issues/685#issuecomment-1029407191. Try the command without it if you want to. Fixes #685 Fixes #1017 --------- Co-authored-by: Daniel Cantarín <canta@canta.com.ar> |
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| README.md | ||
README.md
Public headers for libpackager
These are the public headers for libpackager. They can only reference other
public headers or standard system headers. They cannot reference internal
headers (in packager/...) or third-party dependency headers (in
packager/third_party/...).