Commit graph

9360 commits

Author SHA1 Message Date
Mark Nauwelaerts
74fb627a08 jpegparse: try to convert comment tag to UTF-8 2010-12-08 16:30:11 +01:00
Mark Nauwelaerts
49d7f207cb jpegparse: discard incomplete image
... as determined when finding SOI next image before an EOI.
2010-12-08 16:30:11 +01:00
Mark Nauwelaerts
0a26e138dd jpegparse: avoid infinite loop when resyncing 2010-12-08 16:30:11 +01:00
Arun Raghavan
7abe0a56af audioparse: Allow implicit channel map for 1-/2-channel audio
This makes sure we don't set an empty channel map array for 1-/2-channel
audio, causing an assert later on.
2010-12-08 16:30:11 +01:00
Sebastian Dröge
8974371914 dvbsuboverlay: Revert some parts of last commit that shouldn't be committed 2010-12-08 16:30:11 +01:00
Sebastian Dröge
68b8fca047 dvbsuboverlay: Really choose the latest possible subpictures
And not the first subpictures that are still valid according to the
page timeout.
2010-12-08 16:30:11 +01:00
Sebastian Dröge
e25a1dc0cc dvbsuboverlay: Refactor blending function and take average of all chroma values 2010-12-08 16:30:11 +01:00
Sebastian Dröge
2282a08890 dvbsuboverlay: Improve selection of current to be displayed subpictures
Drop all subpictures that are too old anyway and clear the currently
displayed subpictures if num_rects==0 happens.
2010-12-08 16:30:11 +01:00
Sebastian Dröge
01cf79ae59 dvbsuboverlay: Implement clipping of video buffers
Also don't clip subpicture buffers, they have no duration and
clipping them doesn't make much sense here.
2010-12-08 16:30:11 +01:00
Sebastian Dröge
672cb276be dvbsuboverlay: Clean up locking some more 2010-12-08 16:30:10 +01:00
Sebastian Dröge
92109fdfbc dvbsuboverlay: Flush subtitles and all internal state when needed 2010-12-08 16:30:10 +01:00
Sebastian Dröge
472cace08b dvbsuboverlay: Set the global library log function exactly once
And don't use one of the possibly many renderer instances, this is only
calling for crashes.
2010-12-08 16:30:10 +01:00
Sebastian Dröge
2a976ae133 dvbsuboverlay: Remove lots of commented out and unused code and clean up locking 2010-12-08 16:30:10 +01:00
Mart Raudsepp
a203ad1aab dvbsuboverlay: Fix more of the blending, so it looks quite good now
* libdvbsub gives us alpha channel already, not transparency level, so
don't do another "alpha = 255 - alpha", this is done by libdvbsub.
* Fix alpha channel handling in interpolation - assrender had an additional
1bpp alpha bitmap as a possible mask, we don't. So don't use the palette
index array as alpha values; bug from quick code porting long ago to
changing pixel colors (assrender has a single pixel color for whole
regions or something, unlike dvbsub, which has indexed colors).
* Don't forget to reassign our YUV and other local pixel color variables
after shifting to work on the bottom part of a 2x2 subsample block, or
it's obviously very blocky.

Remaining issues in blending:

* Should probably be interpolating or doing something else useful with the
resulting U and V channels, so that most of the source pixel UV values would
actually be actually cared about, except for just one out of possibly four.

* Don't convert AYUV to ARGB in libdvbsub, and then back from ARGB to AYUV in
dvbsuboverlay for no reason

* Re-factor the whole thing to something more like textoverlay blending
* Related to that, perhaps cache the current spu in a good format for quick
blending on each frame, after which the more often called blending parts
might become more straightforward
2010-12-08 16:30:10 +01:00
Mart Raudsepp
efa1e9a1fe dvbsuboverlay: Fix blending bug regarding color channel addressing.
libdvbsub gives us ARGB ordered pixels right now, not RGBA.
2010-12-08 16:30:10 +01:00
Mart Raudsepp
21abf9c4a8 dvbsuboverlay: Do blending calls when appropriate
This gives us actually shown subtitles, however with bugs in the
current blitting code, resulting in very transparent subtitles.
2010-12-08 16:30:10 +01:00
Mart Raudsepp
84b52f6eb4 dvbsuboverlay: Implement fallback page_time_out honoring
The spec has a page_time_out in the page composition segment to ensure
subtitles don't get stuck on screen for too much longer than intended,
when future page composition segments get lost on bad reception, or other
problems. Honor it in the gst plugin side.
2010-12-08 16:30:10 +01:00
Mart Raudsepp
3d09a3b18a dvbsuboverlay: Implement subtitle queueing and syncing with video
Push incoming subtitle pages in a FIFO queue (pending_subtitles)
and dequeue the head when it's time to show it (when video running
time reaches the subtitle page running time).
Keep the subtitle page, that is supposed to be blended on top of video
currently, in a separate object variable (current_subtitle). As a
next step we can then pre-render current_subtitle to a better to blend
format.
2010-12-08 16:30:10 +01:00
Mart Raudsepp
41c82583f5 dvbsuboverlay: Make the new dvb_subtitles_free() accept NULL
Don't crash if dvb_subtitles_free(NULL) gets passed, like most other
*_free functions are happy with.
2010-12-08 16:30:10 +01:00
Mart Raudsepp
7e2e52cab8 dvbsuboverlay: Pass page_time_out and pts with the DVBSubtitles structure
Eases holding onto the information in gst plugins side queue of
DVBSubtitles, so we won't need to create yet another temporary struct
to keep the pts and page_time_out too.
And this really logically belongs at the toplevel information set anyway
and in that struct...
2010-12-08 16:30:09 +01:00
Mart Raudsepp
aca7237878 dvbsuboverlay: Make the libdvbsub callback handler responsible for memory cleanup
We want to allow queueing of raw region image data in the gst plugin side,
and keep the data around until we pop the item from the queue. So make
the callback handler responsible for memory cleanup, if one is installed.
2010-12-08 16:30:09 +01:00
Mart Raudsepp
4a68decb52 dvbsuboverlay: Work with GstClockTime instead of PTS for subtitle timing
Abuse libdvbsub PTS tracking to just store our running time in it, to get
it back in the callbacks. As GStreamer does its own PTS handling behind our
back (especially for video), we should just sync with video per running time,
not try to do it with PTS, which doesn't seem well accessible for video chain.
We can later relabel dvb-sub.c pts naming convention if wanted, it's just
passing along guint64 values, which GstClockTime fortunately is too.

The current idea is to collect the regions returned by the callback into
a FIFO buffer and pop and pre-render the top one into a separate
quick-to-blend cached format, which is then appropriately blended in the
video chain until the next one on top of the stack reaches the video chains
running time (or the fallback timer hits).
2010-12-08 16:30:09 +01:00
Mart Raudsepp
316cd44c8d dvbsuboverlay: Add FIXME note about non-constant PTS for a display set handling. 2010-12-08 16:30:09 +01:00
Mart Raudsepp
7cab41013e dvbsuboverlay: Remove dvb_sub_feed() API
GStreamer will only use dvb_sub_feed_with_pts, as it has its own PES filter
to do the header parsing.
2010-12-08 16:30:09 +01:00
Tim-Philipp Müller
08c355823b dvbsuboverlay: more TODO 2010-12-08 16:30:09 +01:00
Mart Raudsepp
1db547f0b6 gstmpegtsdemux: add temporary **HACK** for dvb subs testing so dvbsuboverlay gets whole packets
<tpm> leio, what's the mpegts demux hack about?
<leio> my libdvbsub code can't handle cut packets
<leio> so the hack instructs the demuxer to gather full packets before pushing down, but it applies that to more PES packet types than just dvbsub, but I'm not sure if that's a bad thing
<leio> either way, needs a cleaner solution, either in demuxer, or I need to handle cut packets
<tpm> ok, but really it should be fixed in the overlay, right?
<tpm> or a parser be inserted
<leio> the problem is that I don't know from the first packet beforehand if it is a cut one or no
<leio> not
<leio> err, first buffer
<leio> just when I receive the next one I see if it has a valid timestamp on it or not
<leio> so I can't very well queue it up in the chain either, I might be blocking the very last subtitle for no reason or something
<tpm> but you could just drop/ignore packets until you find one, right?
<leio> find what?
<tpm> a complete packet?
<leio> the problem isn't that they aren't complete
<leio> the problem is that they are cut across multiple GstBuffers by the demuxer without the hack
<tpm> sure, I understand that
<tpm> but you can't easily determine if a GstBuffer contains he start fragment of a packet or not?
<leio> I guess I could parse the packet and see if its length is enough, just like the libdvbsub code eventually does too
<leio> I can, it has a timestamp if it's the first chunk
<leio> I just never know if I need to wait for more, without some parsing
<tpm> ah ok
<leio> while the demuxer could just give me an uncut one in the first place
<leio> like it always does for program streams
<leio> that gather_pes is always set in gstmpegdemux, but not in gstmpegtsdemux
2010-12-08 16:30:09 +01:00
Mart Raudsepp
a8d891dc5e dvbsuboverlay: initial version, work in progress 2010-12-08 16:30:09 +01:00
Mark Nauwelaerts
f64f03264f audioparsers: update some documentation 2010-12-03 18:23:20 +01:00
Mark Nauwelaerts
8f0e2346c7 mpegaudioparse: add to documentation 2010-12-03 18:23:17 +01:00
Mark Nauwelaerts
fa0dea3fdc dcaparse: add to documentation 2010-12-03 18:23:14 +01:00
Mark Nauwelaerts
f4e916f882 qtmux: add documentation 2010-12-03 18:23:12 +01:00
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
Benjamin Gaignard
b4ff7c94d7 sys: Add android audioflingersink 2010-12-03 17:46:27 +01:00
Benjamin Gaignard
a642663076 Add build system for Android 2010-12-03 17:42:46 +01:00
Stefan Kost
6e9763a090 camerabin: smal api doc update 2010-12-02 15:51:16 +02:00
Lasse Laukkanen
e96b8a7b5f camerabin: Avoid assertion on image finishing
As imgbin_finished() is scheduled from g_idle_add, it might
be run a little later than expected, this can lead to the application
setting camerabin to ready before imgbin_finished() runs. In this case,
the processing counter goes to 0 and an assertion happens.

This patch relaxes the imgbin_finished() check on the processing
counter.
2010-12-02 05:42:08 -03:00
David Schleef
0a624d92cf element-maker: Handle names with multiple underscores 2010-12-01 23:24:24 -08:00
David Schleef
0e129b05f5 chopmydata: Add new element
This element splits up a stream into randomly-sized buffers.
Useful (maybe) for testing parsers.
2010-12-01 23:24:24 -08:00
Thiago Santos
138023614e tests: Remove leftover comment
Remove comment that doesn't make sense anymore
2010-12-02 03:09:59 -03:00
Alessandro Decina
536a30f2df applemedia: don't use the deprecated g_strcasecmp function.
Replace g_strcasecmp with g_ascii_strcasecmp.
2010-12-01 23:21:33 +01:00
Alessandro Decina
aae72680bd Fix compiler warnings with gcc 4.2.1 on OSX. 2010-12-01 23:20:36 +01:00
Mark Nauwelaerts
ce6d8b6d93 ac3parse: use proper EAC-3 caps 2010-12-01 15:29:55 +01:00
David Hoyt
c79aba9e1e qtmux: handle msvc ftruncate incompatibility
Fixes #636185.
2010-12-01 10:48:51 +01:00
David Schleef
a55a94e72b Add a schroenc test 2010-11-30 18:55:25 -08:00
David Schleef
159e2768d6 Fix pad template memleaks
Pad templates returned by gst_static_pad_template_get() were not
being unreffed.
2010-11-30 18:54:46 -08:00
David Schleef
4eee2dc95d vp8enc: Readd setting of granulepos
Revert parts of last patch that removed setting of granulepos.
oggmux still requires correct granulepos in incoming packet.
2010-11-30 18:43:24 -08:00
David Schleef
01574dc012 vp8enc: Don't override timestamps set by base class
Because the base class does it correctly.
Fixes: #635720, #625558.
2010-11-30 18:34:34 -08:00
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
Sebastian Dröge
5df40a727c jp2kdecimator: Add a JPEG2000 decimator element
This element drops information from JPEG2000 images without reencoding.
2010-11-30 12:39:46 +01:00