HEAD is:
commit 16b8211e5713db1eb66665348909915485ecd92e
Author: Christophe Massiot <cmassiot@openheadend.tv>
Date:   Fri Mar 17 18:28:08 2017 +0100

    mpgvf: repeat sequence header if !global_headers


[fun@dell ~/upipe]% git bisect start origin/master HEAD
Bisecting: 84 revisions left to test after this (roughly 6 steps)
[5d13cfdebe37db4eb1cf412ea6239d89d07a5f22] helper_input: assert on wrong usage
[fun@dell ~/upipe]% git bisect bad
Bisecting: 42 revisions left to test after this (roughly 5 steps)
[f9dbbbbfe9a2328526a4ec47244e19a55d2b7057] x264: do not handle NALs with x262
[fun@dell ~/upipe]% git bisect bad
Bisecting: 20 revisions left to test after this (roughly 4 steps)
[f8340f33e6ae949d42b0af07ad8a1848320d3805] add ubuf_block_stream_{position,init_bits}
[fun@dell ~/upipe]% git bisect bad
Bisecting: 10 revisions left to test after this (roughly 3 steps)
[62a2c0835e999d9bb3b1a56646755956132590ef] ts: misc descriptor fixes
[fun@dell ~/upipe]% git bisect bad
Bisecting: 4 revisions left to test after this (roughly 2 steps)
[600faee97e61d29e766334eda240b95e049556b8] uref_stream: simplify extract_stream
[fun@dell ~/upipe]% git bisect bad
Bisecting: 2 revisions left to test after this (roughly 1 step)
[7c415e1489baa77107cb04ed12e8c16d29dfef6b] ubuf_block_stream: also works with an opaque
[fun@dell ~/upipe]% git bisect good
Bisecting: 0 revisions left to test after this (roughly 1 step)
[07eeb896334adc3b8321dc7c012ae11356316392] uref_dump: cosmetics
[fun@dell ~/upipe]% git bisect good
600faee97e61d29e766334eda240b95e049556b8 is the first bad commit
commit 600faee97e61d29e766334eda240b95e049556b8
Author: Christophe Massiot <cmassiot@openheadend.tv>
Date:   Fri Apr 7 18:24:25 2017 +0200

    uref_stream: simplify extract_stream

    Also use upipe_foo->next_uref in extract_stream, so that framers may set
    uref attributes before extracting.

:040000 040000 698d1808e120c7c73da2d56b2361676fd210f852 52cb5f1f0af99ef091407281e78122f694273567 M	include