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Author SHA1 Message Date
David Schleef
9469aa92f3 baseparse: Create baseparse library 2011-04-08 18:07:16 +01:00
Mark Nauwelaerts
f3f44f81c3 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.
 2011-04-08 18:07:16 +01:00
Arun Raghavan
f0435d6fd6 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
 2011-04-08 18:07:16 +01:00
Arun Raghavan
7f4a61b56c mpegaudioparse: Post CBR bitrate as nominal bitrate 
Even if VBR headers are missing, we can't guarantee that a stream is in
fact a CBR stream, so it's safer to let baseparse calculate the average
bitrate rather than assume a CBR stream. However, in order to make
/some/ metadata available before the requisite number of frames have
been parsed, this posts the bitrate from the non-VBR headers as the
nominal bitrate.

https://bugzilla.gnome.org/show_bug.cgi?id=641858
 2011-04-08 18:07:16 +01:00
Mark Nauwelaerts
cc1b5ded6d amrparse: a valid amr-wb frame should not have reserved frame type index 
See #639715.
 2011-04-08 18:07:16 +01:00
Mark Nauwelaerts
d1bea6361b ac3parse: improve handling of dependent substream frames 
In particular, timestamps of these should track main-stream timestamps.
 2011-04-08 18:07:16 +01:00
Mark Nauwelaerts
3f2ffc9e53 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.
 2011-04-08 18:07:16 +01:00
Mark Nauwelaerts
fa16a9a0ef baseparse: reverse playback; mind keyframes for fragment boundary 2011-04-08 18:07:16 +01:00
Mark Nauwelaerts
39da316386 amrparse: properly check for sufficient available data prior to access 2011-04-08 18:07:16 +01:00
Mark Nauwelaerts
fd064765a7 baseparse: ensure non-empty candidate frames 2011-04-08 18:07:16 +01:00
Mark Nauwelaerts
2e76193c56 baseparse: clarify some debug statements 2011-04-08 18:07:15 +01:00
Mark Nauwelaerts
054621a58c baseparse: properly track upstream timestamps 
... rather than with a delay.
 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
6df2a01762 baseparse: need proper frame duration to obtain sensible frame bitrate 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
1749b527c1 baseparse: proper initial values for index tracking variables 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
6616883390 baseparse: arrange for consistent event handling 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
de1d89dba6 baseparse: header style cleaning 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
9f5840572e baseparse: provide some more initial frame metadata in parse_frame 
... and document accordingly.
 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
551eefb757 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.
 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
4163969a24 baseparse: introduce a baseparse frame to serve as context 
... and adjust subclass parsers accordingly
 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
b45821c83f baseparse: restrict duration scanning to pull mode and avoid extra set_caps call 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
9a76c1d8cd baseparse: update some documentation 
Also add some more debug.
 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
32f57133ac 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.
 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
d9def3d05d baesparse: fix refactor regression in loop based parsing 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
9d9d9beb04 baseparse: pass all available data to subclass rather than minimum 
Also reduce some adapter calls and add a few debug statements.
 2011-04-08 18:07:14 +01:00
Mark Nauwelaerts
feaf23f8bd baseparse: fix reverse playback handling 2011-04-08 18:07:13 +01:00
Mark Nauwelaerts
95c2251390 baseparse: minor typo and debug statement cleanup 2011-04-08 18:07:13 +01:00
Mark Nauwelaerts
d1bb142b68 baseparse: reduce locking 
... which is either already mute and/or implicitly handled by STREAM_LOCK.
 2011-04-08 18:07:13 +01:00
Mark Nauwelaerts
ce23c62f58 baseparse: avoid loop in frame locating interpolation 2011-04-08 18:07:13 +01:00
Mark Nauwelaerts
eafcdf67b9 flacparse: mind gst_buffer_unref not liking NULL 
Fixes #639950.
 2011-04-08 18:07:13 +01:00
Thiago Santos
244f747df2 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
 2011-04-08 18:07:13 +01:00
Tim-Philipp Müller
bb8f0d3b4c dcaparse: fix sync word for 14-bit little endian coding 
Fix copy'n'paste bug that made us look for the raw little endian
sync word twice instead of looking for the 14-bit LE sync word
as well. Fixes parsing of such streams (see #636234 for sample file).
 2011-04-08 18:07:13 +01:00
Tim-Philipp Müller
a8c854374b docs: minor baseparse docs/comment fixes 
Remove copy'n'paste leftovers.
 2011-04-08 18:07:13 +01:00
Edward Hervey
6fbdfa07a8 flacparse: Fix unitialized variable on macosx 2011-04-08 18:07:13 +01:00
Mark Nauwelaerts
cf5b01a55f ac3parse: relax bsid checking 
... to the widest possible spec interpretation.

Fixes #637062.
 2011-04-08 18:07:13 +01:00
Mark Nauwelaerts
d2a9daec36 audioparsers: update some documentation 2011-04-08 18:07:13 +01:00
Mark Nauwelaerts
cfbc40aca7 mpegaudioparse: add to documentation 2011-04-08 18:07:13 +01:00
Mark Nauwelaerts
d1d1239fe4 dcaparse: add to documentation 2011-04-08 18:07:13 +01:00
Mark Nauwelaerts
0bb654ed66 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).
 2011-04-08 18:07:13 +01:00
Mark Nauwelaerts
f7de334d61 ac3parse: use proper EAC-3 caps 2011-04-08 18:07:12 +01:00
Mark Nauwelaerts
b8af812987 baseparse: avoid unexpected stray metadata 2011-04-08 18:07:12 +01:00
Mark Nauwelaerts
24cf864c91 baseparse: use proper _NONE output value when applicable 2011-04-08 18:07:12 +01:00
Edward Hervey
1e71d31e67 audioparsers: Remove dead assignments 2011-04-08 18:07:12 +01:00
Andoni Morales Alastruey
5bfc92714e audioparse: fix possible division-by-zero 
https://bugzilla.gnome.org/show_bug.cgi?id=635786
 2011-04-08 18:07:12 +01:00
Mark Nauwelaerts
a45019fdd6 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.
 2011-04-08 18:07:12 +01:00
Mark Nauwelaerts
76b322a429 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.
 2011-04-08 18:07:12 +01:00
Mark Nauwelaerts
634d4de627 baseparse: refactor frame scanning peformed by _loop 2011-04-08 18:07:12 +01:00
Mark Nauwelaerts
563f1a136b baseparse: slightly optimize sending of pending newsegment events 2011-04-08 18:07:12 +01:00
Mark Nauwelaerts
5eeb1f2e1f 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.
 2011-04-08 18:07:12 +01:00
Mark Nauwelaerts
3e50f0a3c9 aacparse: minor cleanups 2011-04-08 18:07:12 +01:00
Mark Nauwelaerts
31d387f7b5 aacparse: fix regression in ADIF src caps setting 2011-04-08 18:07:12 +01:00