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Author SHA1 Message Date
Nicolas Dufresne
f8736626a9 codecs: h264decoder: Make get_long_ref_by_pic_num() transfer none 
We don't use the extra reference, so let's just avoid the extra
ref/unref.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1238>
 2020-05-19 16:57:08 +00:00
Nicolas Dufresne
a20147f255 codecs: h264decoder: Make get_short_ref_by_pic_num() transfer none 
We don't use the extra reference, so let's just avoid the extra
ref/unref.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1238>
 2020-05-19 16:57:08 +00:00
Seungha Yang
24367cbff0 h264decoder: Allow frame gap even if it's not allowed by SPS 
It's most likely the case where some frames were dropped for some reason
(e.g., broken stream, network loss or so). However, decoder might be able to
decode following frames even if some frames are visually broken.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1232>
 2020-05-01 01:55:21 +09:00
Seungha Yang
1d38728d05 h264decoder: Perform low-latency outputting only for live pipeline 
Frequent outputting might drop throughput-wise performance.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1211>
 2020-04-28 13:23:53 +00:00
Seungha Yang
00ad871628 h264decoder: Output decoded pictures as soon as possible 
In case of IDR, any previously decoded pictures must be drained
before the IDR and POC of IDR should be zero. So we can output
IDR immediately. Also, when POC of current picture is expected to be
the next output POC, decoder can output the picture as well
without waiting.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1211>
 2020-04-28 13:23:53 +00:00
Víctor Manuel Jáquez Leal
851557af20 codecs: fix gir generation 
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1218>
 2020-04-26 19:26:32 +02:00
Víctor Manuel Jáquez Leal
23e99a7a77 codecs: set sys frame num before new_picture() 
Derive classes might need to operate on the current frame at their
new_picture() vmethod, so it would be needed to set system_frame_number
on picture before calling the vmethod.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1209>
 2020-04-23 19:54:17 +00:00
Seungha Yang
8325e42ade codecs: Fix some documentation 
Add missing "transfer full" annotation, etc

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1079>
 2020-04-22 23:20:44 +00:00
Seungha Yang
a89b819191 codecs: Add new baseclass for VP8 decoder 
This implemenation is similar to VP9 but much simpler than it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1079>
 2020-04-22 23:20:44 +00:00
Seungha Yang
9524e6adec vp9decoder: Fix small typo 
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1079>
 2020-04-22 23:20:44 +00:00
Seungha Yang
d72fcbe18a codecs: Reorganize the order of vfunc 
... to the order in which it is actually called

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1079>
 2020-04-22 23:20:44 +00:00
Seungha Yang
ba07768ca4 h264decoder: Don't handle gap frame num for the first picture 
If the first picture is not IDR, it would have non-zero frame_num
but it's not gap. We should skip gap frame handling in that case
 2020-04-20 13:55:49 +00:00
Seungha Yang
6a7ea29084 h264decoder: Add some debug messages 2020-04-20 13:55:49 +00:00
Víctor Manuel Jáquez Leal
a3395167a1 codecs: h264picture: typo in GstH264PictureField enum 2020-04-19 18:40:12 +02:00
Seungha Yang
5a29917a63 codecs: Add minimal state validation 
... to prevent requesting decoding before the preparation.
For instance, baseclass should not request decoding a picture if there
is no parsed valid headers, since subclass is most likely
not ready to decoding it.
 2020-04-09 19:33:56 +00:00
Thibault Saunier
b9e0ccd8b7 codecs: Add basic documentation stubs 2020-04-08 08:47:46 -04:00
Nicolas Dufresne
b79c949789 codecs: h264: Fix DPB size calculation 
As per specification in A.3.1 h) and A.3.2 f), the maximum size of the DPB is
16. Fix the maximum in the fine and fix the formula to use MIN instead of MAX
so that we no longer always use the maximum for the profile/level.
 2020-04-07 07:53:27 +00:00
Nicolas Dufresne
7b8c071f9c codecs: h264dpb: Don't leak pic_list GArray 
The contents was cleared, but the array was never released.
 2020-03-31 09:34:05 -04:00
Nicolas Dufresne
bd7db13412 codecs: h264: Do not ignore end_picture() return value 
If decoding failed because end_picture() failed, set the picture to
nonexisting, this way output_picture() will be skipped. This avoids confusing
special cases in output_picture() implementation.
 2020-03-31 09:34:05 -04:00
Seungha Yang
5609d8751c h265decoder: Pass max_dpb_size to new_sequence vfunc 
same as we are doing in h264decoder
 2020-03-08 16:11:35 +09:00
Seungha Yang
ba3430a059 h265decoder: Fix for output and removal picture from DPB 
See C.5.2.2 Output and removal of pictures from the DPB.

If the number of pictures in the DPB is greater than or equal to
sps_max_dec_pic_buffering_minus1[HighestTid] + 1, then the picture
should be outputted.
 2020-03-07 12:20:03 +09:00
Seungha Yang
8b0d5e1272 meson: codecs: Don't install header 
This library is not intended to be public. APIs are likely to
change over time and should not be disclosed to people yet.
 2020-03-06 16:44:01 +09:00
Seungha Yang
fdf06fa363 h264decoder: Rename some internals 
No more a part of d3d11 implementation
 2020-03-05 15:27:42 +00:00
Seungha Yang
f487648b03 vp9decoder: Update document 
s/GstH264Picture/GstVp9Picture/g and minor update since this baseclass
is no more d3d11 specific one.
 2020-03-05 15:27:42 +00:00
Seungha Yang
82f1d5e8be codecs: Change output_picture() to mandatory implementation 
GstVideoCodecFrame is expected to be consumed by subclass
per output_picture(). So the implementation cannot be optional.
 2020-03-05 15:27:42 +00:00
Seungha Yang
83b056cb77 h265decoder: Port to nal type classification macro 
... and remove namespaceless macro methods from baseclass
 2020-03-05 23:22:39 +09:00
Nicolas Dufresne
56c3b40c30 h264picture: Add system_frame_num 
This allow cross-referencing GstH264Picture and GstVideoCodecFrame.
 2020-03-05 03:06:16 +00:00
Nicolas Dufresne
c6b8157dd6 codecs: Pass the max_dpb_size to new_segment virtual 
On new_segment, the decoder is expected to negotiate. The decoder may want to
pre-allocate the needed buffers. Pass the max_dpb_size as this is needed to
determin how many buffers should be allocated.
 2020-03-05 03:06:16 +00:00
Nicolas Dufresne
f3f60f5a4c codecs: Add missing auto cleanup funcs 2020-03-05 03:06:16 +00:00
Nicolas Dufresne
00d04784d3 Move CODEC base classes into it's own library 
This introduce a library which contains a set of base classes which
handles the parsing and the state tracking for the purpose of decoding
different CODECs. Currently H264, H265 and VP9 are supported. These
bases classes are used to decode with low level decoding API like DXVA,
NVDEC, VDPAU, VAAPI and V4L2 State Less decoders. The new library is
named gstreamer-codecs-1.0 / libgstcodecs.
 2020-03-05 03:06:16 +00:00