Without EXT-X-MAP support we miss the first bytes of some streams.
These streams worked by luck before byte-ranged segment support was added in da7759b3579de3e98deb1ac58e642b861280ba54
Fixes ticket #4797.
9099079 avformat/hls: add support for EXT-X-MAP
libavformat/hls.c | 192 ++++++++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 182 insertions(+), 10 deletions(-)