Commit graph

73 commits

Author SHA1 Message Date
Víctor Manuel Jáquez Leal
206d900573 codecs: h264decoder: chain finalize vmethod
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1238>
2020-05-19 16:57:09 +00:00
Nicolas Dufresne
28e30c8493 codecs: h264decoder: Use calculated values for max_pic_num/frame_num
The parser pre-calculate these already, just use them.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1238>
2020-05-19 16:57:09 +00:00
Víctor Manuel Jáquez Leal
d2aae6bb96 codecs: h264decoder: ref pic lists as decode_slice parameters
Pass reference picture lists to decode_slice() vmethods

Change gstv4l2codech264dec and gstnvh264dec accordingly.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1238>
2020-05-19 16:57:09 +00:00
Víctor Manuel Jáquez Leal
990392d595 codecs: h264decoder: handle reference picture lists
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1238>
2020-05-19 16:57:08 +00:00
Nicolas Dufresne
7e63d1f5ad codecs: h264decoder: Port from GList to GArray
Using glist requires a lot of small allocation at runtime and also
it comes with a slow sort algorithm. As we play with that for very
frame and slices, use GArray instead. Note that we cache some arrays
in the instance as there is no support for stack allocated arrays
in GArray.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1238>
2020-05-19 16:57:08 +00:00
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
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
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
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
fdf06fa363 h264decoder: Rename some internals
No more a part of d3d11 implementation
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
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
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
Renamed from sys/d3d11/gsth264decoder.c (Browse further)