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88 commits

Author SHA1 Message Date
David Schleef
fa3ff9e5ed baseparse: Create baseparse library 2011-02-17 13:57:56 -08:00
Mark Nauwelaerts
99baf8ae17 baseparse: tune QUERY_SEEKING response 
Even if we currently do not have a duration yet, assume seekable if
it looks like we'll likely be able to determine it later on
(which coincides with needed information to perform seeking).

Fixes #641047.
 2011-02-17 13:00:59 +01:00
Arun Raghavan
3f683e0288 baseparse: Update min/max bitrate before first posting them 
This avoids posting an initial min-bitrate of G_UINTMAX and max-bitrate
of 0.

https://bugzilla.gnome.org/show_bug.cgi?id=641857
 2011-02-09 18:30:51 +01:00
Mark Nauwelaerts
7f805f17b2 baseparse: tune default duration estimate update interval 
Rather than a fixed default frame count, estimate frame count to aim for
an interval duration depending on fps if available, otherwise use old
fixed default.
 2011-01-28 12:16:59 +01:00
Mark Nauwelaerts
479865c1b3 baseparse: reverse playback; mind keyframes for fragment boundary 2011-01-28 12:16:58 +01:00
Mark Nauwelaerts
3ba3339993 baseparse: ensure non-empty candidate frames 2011-01-28 12:16:58 +01:00
Mark Nauwelaerts
ac8080f003 baseparse: clarify some debug statements 2011-01-28 12:16:58 +01:00
Mark Nauwelaerts
16342223ee baseparse: properly track upstream timestamps 
... rather than with a delay.
 2011-01-28 12:16:58 +01:00
Mark Nauwelaerts
b97e560f1a baseparse: need proper frame duration to obtain sensible frame bitrate 2011-01-28 12:16:58 +01:00
Mark Nauwelaerts
559b3ead93 baseparse: proper initial values for index tracking variables 2011-01-28 12:16:58 +01:00
Mark Nauwelaerts
f3da619dd2 baseparse: arrange for consistent event handling 2011-01-28 12:16:58 +01:00
Mark Nauwelaerts
2c872ad913 baseparse: provide some more initial frame metadata in parse_frame 
... and document accordingly.
 2011-01-28 12:16:57 +01:00
Mark Nauwelaerts
6a45c4f65e baseparse: refactor passthrough into format flags 
Also add a format flag to signal baseparse that subclass/format can provide
(parsed) timestamp rather than an estimated one.  In particular, such "strong"
timestamp then allows to e.g. determine duration.
 2011-01-28 12:16:57 +01:00
Mark Nauwelaerts
1c89488c50 baseparse: introduce a baseparse frame to serve as context 
... and adjust subclass parsers accordingly
 2011-01-28 12:16:57 +01:00
Mark Nauwelaerts
400198b2cd baseparse: restrict duration scanning to pull mode and avoid extra set_caps call 2011-01-28 12:16:57 +01:00
Mark Nauwelaerts
3e9d5c4bf8 baseparse: update some documentation 
Also add some more debug.
 2011-01-28 12:16:57 +01:00
Mark Nauwelaerts
829507b650 baseparse: allow increasing min_size for current frame parsing only 
Also check that subclass actually either directs to skip bytes or
increases expected frame size to avoid going nowhere in bogus
indefinite looping.
 2011-01-28 12:16:57 +01:00
Mark Nauwelaerts
18b69e9320 baesparse: fix refactor regression in loop based parsing 2011-01-28 12:16:57 +01:00
Mark Nauwelaerts
f4f7306e37 baseparse: pass all available data to subclass rather than minimum 
Also reduce some adapter calls and add a few debug statements.
 2011-01-28 12:16:57 +01:00
Mark Nauwelaerts
e54e2a9616 baseparse: fix reverse playback handling 2011-01-28 12:16:56 +01:00
Mark Nauwelaerts
695c9599f4 baseparse: minor typo and debug statement cleanup 2011-01-28 12:16:56 +01:00
Mark Nauwelaerts
fcd0f5cb7a baseparse: reduce locking 
... which is either already mute and/or implicitly handled by STREAM_LOCK.
 2011-01-28 12:16:56 +01:00
Mark Nauwelaerts
3da135ce02 baseparse: avoid loop in frame locating interpolation 2011-01-26 17:16:49 +01:00
Thiago Santos
a6a982e8be audioparsers: baseparse: Be careful to not lose the event ref 
Don't unref the event if it hasn't been handled, because the caller
assumes it is still valid and might reuse it.

I ran into this problem when transcoding an AVI (with mp3 inside)
to gpp.

https://bugzilla.gnome.org/show_bug.cgi?id=639555
 2011-01-15 13:48:26 -03:00
Tim-Philipp Müller
095eaa1752 docs: minor baseparse docs/comment fixes 
Remove copy'n'paste leftovers.
 2011-01-13 16:28:24 +00:00
Mark Nauwelaerts
26feb26fc1 baseparse: increase keyframe awareness 
... which is not particular relevant for audio parsing, but more so
in video cases.  In particular, auto-determine if dealing with video (caps).
 2010-12-03 18:23:06 +01:00
Mark Nauwelaerts
aa93b5b458 baseparse: avoid unexpected stray metadata 2010-11-30 16:23:26 +01:00
Mark Nauwelaerts
145e041af5 baseparse: use proper _NONE output value when applicable 2010-11-30 16:23:24 +01:00
Edward Hervey
15cd318ada audioparsers: Remove dead assignments 2010-11-25 18:56:42 +01:00
Andoni Morales Alastruey
bc3917bb04 audioparse: fix possible division-by-zero 
https://bugzilla.gnome.org/show_bug.cgi?id=635786
 2010-11-25 17:28:16 +01:00
Mark Nauwelaerts
68dca2e704 baseparse: use correct offset when adding index entry 
... bearing in mind that BUFFER_OFFSET is media specific and may not
reflect the basic offset after having been parsed.
 2010-11-17 16:24:13 +01:00
Mark Nauwelaerts
9b6439a36c baseparse: enhancements for timestamp marked framed formats 
That is, as such formats allow subclass to extract position from frame,
it is possible to extract duration (if not otherwise provided)
from (near) last frame, and a seek can fairly accurately target the required
position.

Fixes #631389.
 2010-11-17 15:36:41 +01:00
Mark Nauwelaerts
08cab00b8b baseparse: refactor frame scanning peformed by _loop 2010-11-17 15:36:38 +01:00
Mark Nauwelaerts
587106f1cf baseparse: slightly optimize sending of pending newsegment events 2010-11-17 15:36:36 +01:00
Mark Nauwelaerts
f82f330537 baseparse: minor fixes and enhancements 
Arrange for upstream as well as downstream flushing when seeking.
Also determine upstream size as well as seekability.  Adjust some comments
to reality and employ debug statement in proper order.
 2010-11-17 15:36:23 +01:00
Mark Nauwelaerts
ba35b17b98 baseparse: use only upstream duration if it provides one 2010-10-29 14:11:47 +02:00
Mark Nauwelaerts
61cf6f2ffa baseparse: reflow update_bitrate code 
... which makes local variables represent real state better, and avoids
triggering unneeded updates/actions.
 2010-10-29 14:11:44 +02:00
Mark Nauwelaerts
841e09e234 baseparse: add some debug statements 2010-10-29 14:11:42 +02:00
Mark Nauwelaerts
6e1d65d788 baseparse: perform bitrate handling and posting after newsegment sending 2010-10-11 17:50:21 +02:00
Mark Nauwelaerts
30feca6966 baseparse: immediately post subclass provided bitrate 2010-10-11 17:42:09 +02:00
Tim-Philipp Müller
716e430fd5 Revert "baseparse: add skip property" 
This reverts commit b5a3d60363.

Reverting this for now, since no one really seems to remember why this
property exists or what it could possibly be good for. It seems to have
been in the original mp3parse since the beginning of time and was back-
ported from there.
 2010-10-05 11:17:52 +01:00
Sebastian Dröge
26b2c4a1b3 audioparser: Let the format string agree with the parameters to fix compiler warning 2010-10-03 23:50:29 +02:00
Arun Raghavan
2d699010e9 baseparse: Fix debug output 
We lose the reference to the buffer after gst_pad_push(), so the debug
print should happen before.

https://bugzilla.gnome.org/show_bug.cgi?id=622276
 2010-10-01 13:31:36 +02:00
Mark Nauwelaerts
ad1304dcf1 baseparse: support reverse playback 
... in pull mode or upstream driven.
 2010-10-01 12:15:52 +02:00
Mark Nauwelaerts
603d6ba183 baseparse: remove done TODOs and update documentation 2010-10-01 12:15:52 +02:00
Mark Nauwelaerts
fdff382686 baseparse: use determined seekability in answering SEEKING query 2010-10-01 12:15:52 +02:00
Mark Nauwelaerts
b5a3d60363 baseparse: add skip property 2010-10-01 12:15:52 +02:00
Mark Nauwelaerts
36165d8d44 baseparse: use _set_frame_props to configure frame lead_in and lead_out 
... provided a corresponding decoder with sufficient leading and following
frames to carry out full decoding for a particular segment.
 2010-10-01 12:15:51 +02:00
Mark Nauwelaerts
13f85c8f11 baseparse: use _set_duration to configure duration update interval 
... as it logically belongs there as one or the other; either subclass
can provide a duration, or an estimate must be made (reguarly updated).
 2010-10-01 12:15:51 +02:00
Mark Nauwelaerts
eb9ba9e115 baseparse: localize use of provided fps information 2010-10-01 12:15:50 +02:00