Commit graph

16 commits

Author SHA1 Message Date
Seungha Yang
88ebe8031a codecs: h264decoder: Add more option arguments for reference picture getter
In case that "pic_order_cnt_type" is equal to zero, ref picture
list for B slice should not include non-existing picture
as per spec 8.2.4.2.3. And, the second field is not needed
for the process of frame picture reference list construction
since it needs to be frame unit, not field picture in that case.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1812>
2020-11-17 19:44:04 +09:00
Seungha Yang
7b42b1f9fb codecs: h264decoder: Add util macro for frame/field picture identification
Add a macro to check whether given GstH264Picture is for frame or field
decoding.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1810>
2020-11-16 14:25:36 +00:00
Seungha Yang
0b9f975b36 codecs: h264decoder: Add support for interlaced stream
Initial support for interlaced stream. Subclass should implement
new_field_picture() vfunc. Otherwise, baseclass will assume that
subclass doesn't support interlaced stream.

Restrictions:
* Reference picture modification process for interlaced stream
  is not implemented yet
* PAFF (Picture Adaptive Frame Field) is not properly implemented.
* Field display ordering (e.g., top-field-first) decision should
  be enhanced via picture timing SEI parsing
* Gap in field picture should be handled

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1534>
2020-11-13 15:25:43 +00:00
Seungha Yang
52a8864076 codecs: h264decoder: Rename DPB methods
Clarify wheter it's for picture(field) or frame in order to
support interlaced stream, because DPB size is frame unit, not picture
in case of interlaced stream.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1534>
2020-11-13 15:25:42 +00:00
Seungha Yang
7a53d7a4aa codecs: h264decoder: Store reference picture type using enum value
Managing reference picture type by using two variables
(ref and long_term) seems to be redundant and that can be
represented by using a single enum value.

This is to sync this implementation with gstreamer-vaapi so that
make comparison between this and gstreamer-vaapi easier and also
in order to minimize the change required for subclass to be able
to support interlaced.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1534>
2020-11-13 15:25:42 +00:00
Seungha Yang
e78dc91f9e codecs: h264decoder: Fix for MMCO type 2
As per 8.2.5.4.2, we should mark a picture which has
LongTermPicNum == long_term_pic_num as "unused for reference",
not pic_num.

Passing conformance bitstream test with MR2_MW_A

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1768>
2020-11-05 14:56:28 +00:00
Seungha Yang
5527cc4a2e codecs: h264decoder: Rework for DPB management
Sync with recent h265decoder DPB implementation.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1761>
2020-11-05 02:26:47 +09:00
Seungha Yang
b70ceb4235 codecs: h264decoder: Remove unused pts variable
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1761>
2020-11-05 00:33:34 +09:00
Nicolas Dufresne
f4b2da3c63 h264decoder: Fix various typos
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1563>
2020-09-10 15:21:57 +00:00
Nicolas Dufresne
6523c5bcb6 h264decoder: Add ability to lookup by system_frame_number
This is to avoid having to create a reference chain in decoders from
GstVideoCodecFrame to GstH264PIcture to implementation wrapper.

So this change introduces:

 - gst_h264_dpb_remove_outputed (dpb)
 - gst_h264_dpb_get_picture(dpb, system_frame_num)
 - gst_h264_decoder_get_picture (dec, system_frame_num)

In order to ensure that frames can be looked up during the draining
process, we now first remove all (including reference) frames that
have been outputed but are still in the DPB. Then for each remaining
buffers, we remove it from the DPB to reach reference 1 and output it.

Previously we could take all not outputed outside of the DPB which would
prevent lookup by the base class.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1449>
2020-07-21 17:18:42 +09:00
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
Víctor Manuel Jáquez Leal
a3395167a1 codecs: h264picture: typo in GstH264PictureField enum 2020-04-19 18:40:12 +02:00
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
56c3b40c30 h264picture: Add system_frame_num
This allow cross-referencing GstH264Picture and GstVideoCodecFrame.
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
Renamed from sys/d3d11/gsth264picture.h (Browse further)