Commit graph

36 commits

Author SHA1 Message Date
Gwenole Beauchesne
67eea92044 libs: drop GST_VAAPI_IS_xxx() helper macros.
Drop obsolete GST_VAAPI_IS_xxx() helper macros since we are no longer
deriving from GObject and so those were only checking for whether the
argument was NULL or not. This is now irrelevant, and even confusing
to some extent, because we no longer have type checking.

Note: this incurs more type checking (review) but the libgstvaapi is
rather small, so this is manageable.
2013-05-23 18:15:48 +02:00
Gwenole Beauchesne
3cc7b26961 libs: use GstVaapiMiniObject for video decoders.
Port GstVaapiDecoder and GstVaapiDecoder{MPEG2,MPEG4,JPEG,H264,VC1} to
GstVaapiMiniObject. Add gst_vaapi_decoder_set_codec_state_changed_func()
helper function to let the user add a callback to a function triggered
whenever the codec state (e.g. caps) changes.
2013-05-07 17:51:27 +02:00
Gwenole Beauchesne
c43a2d497a decoder: add gst_vaapi_decoder_get_frame_with_timeout().
Add gst_vaapi_decoder_get_frame_with_timeout() helper function that will
wait for a frame to be decoded, until the specified timeout in microseconds,
prior to returning to the caller.

This is a fix to performance regression from 851cc0, whereby the vaapidecode
loop executed on the srcpad task was called to often, thus starving all CPU
resources.
2013-04-25 14:18:00 +02:00
Gwenole Beauchesne
4009430bec decoder: sanitize codec-data decoding.
Add a new GstVaapiDecoder::decode_codec_data() hook to actually decode
codec-data in the decoder sub-class. Provide a common shared helper
function to do the actual work and delegating further to the sub-class.
2013-03-21 14:38:06 +01:00
Gwenole Beauchesne
0c99f351fc legal: fix year for some copyright notices (2013). 2013-01-29 14:37:02 +01:00
Gwenole Beauchesne
22094ed053 legal: fix year for some copyright notices (2012). 2013-01-29 14:37:02 +01:00
Gwenole Beauchesne
60acedb56e decoder: add GstVaapiDecoder::flush() hook. 2013-01-17 18:39:22 +01:00
Gwenole Beauchesne
2c449e42ca decoder: refactor decoder unit API.
Allocate decoder unit earlier in the main parse() function and don't
delegate this task to derived classes. The ultimate purpose is to get
rid of dynamic allocation of decoder units.
2013-01-07 14:10:13 +01:00
Gwenole Beauchesne
09c9e20379 decoder: add gst_vaapi_decoder_get_frame() API.
Add new gst_vaapi_decoder_get_frame() function meant to be used with
gst_vaapi_decoder_decode(). The purpose is to return the next decoded
frame as a GstVideoCodecFrame and the associated GstVaapiSurfaceProxy
as the user-data object.
2012-12-18 15:31:51 +01:00
Sreerenj Balachandran
e7e5c74a6e decoder: use GstVideoCodecState.
Use standard GstVideoCodecState throughout GstVaapiDecoder and expose
it with a new gst_vaapi_decoder_get_codec_state() function. This makes
it possible to drop picture size (width, height) information, framerate
(fps_n, fps_d) information, pixel aspect ratio (par_n, par_d) information,
and interlace mode (is_interlaced field).

This is a new API with backwards compatibility maintained. In particular,
gst_vaapi_decoder_get_caps() is still available.

Signed-off-by: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2012-12-18 15:31:51 +01:00
Gwenole Beauchesne
14a6e0f629 decoder: update gst_vaapi_decoder_get_surface() semantics.
Align gst_vaapi_decoder_get_surface() semantics with the rest of the
API. That is, return a GstVaapiDecoderStatus and the decoded surface
as a handle to GstVaapiSurfaceProxy in parameter.

This is an API/ABI change.
2012-12-18 15:31:51 +01:00
Gwenole Beauchesne
6bed9ebe0f decoder: expose new parse/decode API.
Introduce new decoding process whereby a GstVideoCodecFrame is created
first. Next, input stream buffers are accumulated into a GstAdapter,
that is then passed to the _parse() function. The GstVaapiDecoder object
accumulates all parsed units and when a complete frame or field is
detected, that GstVideoCodecFrame is passed to the _decode() function.

Ultimately, the caller receives a GstVaapiSurfaceProxy if decoding
process was successful.
2012-12-18 15:31:51 +01:00
Gwenole Beauchesne
ea9703362c decoder: add {start,end}_frame() hooks.
The start_frame() hook is called prior to traversing all decode-units
for decoding. The unit argument represents the first slice in the frame.
Some codecs (e.g. H.264) need to wait for the first slice in order to
determine the actual VA context parameters.
2012-12-18 15:31:51 +01:00
Gwenole Beauchesne
66cc8754fc decoder: add new GstVaapiDecoder API.
Split decoding process into two steps: (i) parse incoming bitstreams
into simple decoder-units until the frame or field is complete; and
(ii) decode the whole frame or field at once.

This is an ABI change.
2012-12-18 15:31:51 +01:00
Gwenole Beauchesne
5549dbc3c0 vaapidecode: don't reset decoder if codec type is the same.
Reset, i.e. destroy then create, the decoder in _setcaps() handler only
if the underlying codec type actually changed. This makes it possible
to be more tolerant with certain MPEG-2 streams that get parsed to
form caps that are compatible with the previous state but minor changes
to "codec-data".
2012-09-11 17:08:47 +02:00
Philip Lorenz
79b45a43d1 Do not forward declare enums.
Forward declaring enums is not allowed by the C standard and aborts
compilation if the header file is included in a C++ project.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2012-09-07 11:54:09 +02:00
Javier Jardón
dba174906a libs: declare _get_type() functions as const.
Declaring a function as const enables better optimization of calls
to the function.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2012-07-19 15:19:17 +02:00
Gwenole Beauchesne
1594d99d55 legal: add Intel copyright on modified files. 2012-01-16 11:40:51 +01:00
Gwenole Beauchesne
14cc1cf061 legal: fix copyright notices to include "Copyright" term. 2012-01-16 11:40:51 +01:00
Gwenole Beauchesne
a93c1c076b decoder: add new error codes.
GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE: for unsupported profile
GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT: for unsupported chroma format
2012-01-16 11:40:50 +01:00
Gwenole Beauchesne
1701ce3107 Update copyright notice. 2011-06-14 13:54:07 +02:00
gb
86d0b2ade9 Regularly update and expose decoder caps. 2010-09-20 12:55:46 +02:00
gb
5e8e268e26 Check for out-of-free-surfaces condition. 2010-09-20 12:55:46 +02:00
gb
0047bb1553 Change GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN value to something more generic (-1). 2010-09-20 12:55:46 +02:00
gb
e739b7a289 Fix docs. 2010-09-20 12:55:44 +02:00
gb
73766f9466 Simplify GstVaapiDecoder API. 2010-09-20 12:55:43 +02:00
gb
5128ed9951 Drop obsolete defs. 2010-09-20 12:55:43 +02:00
gb
bcf57bb4f9 Drop obsolete decls. 2010-09-20 12:55:43 +02:00
gb
4754317e70 Relicense gst-libs/ code to LGPL v2.1+. 2010-09-20 12:55:42 +02:00
gb
a4d201aaf9 Drop excessive threading that over-complicates synchronisation.
MPEG-2 & H.264 videos now play but there are other problems (timestamps).
2010-09-20 12:55:42 +02:00
gb
5d1eb8ce89 Add gst_vaapi_decoder_pause(). 2010-09-20 12:55:41 +02:00
gb
2356ceb0d9 Use a GstTask with start/stop semantics for the decoder thread. 2010-09-20 12:55:41 +02:00
gb
61ae27d84c Split decoder creation with actual resources allocation
and codec setup (probe). This fixes a memory leak (avctx, pctx)
on destroy and most interestingly makes it possible to
detect unsupported codecs.
2010-09-20 12:55:40 +02:00
gb
cc28cdbd60 - Add PTS and framerate information.
- Simplify parsing with an AVCodeParserContext.
2010-09-20 12:55:32 +02:00
gb
29f1784dd7 Add more error codes. Fix documentation. 2010-09-20 12:55:32 +02:00
gb
a203d19a35 Add initial (multithreaded) decoder based on FFmpeg.
There are tons of bugs left:
- Decoder API not nice enough with error conditions
- FFmpeg parser is sometimes broken
- Packets queue can be lost
2010-04-23 16:05:58 +00:00