This repository has been archived by the owner on Oct 23, 2023. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 106
/
NEWS
329 lines (274 loc) · 13.1 KB
/
NEWS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
libyami NEWS -- summary of changes. 2019-08-06
Copyright (c) 2010, The WebM Project authors.
Copyright (C) 2011-2019 Intel Corporation
Copyright (C) 2015-2016 Alibaba
libyami 1.3.2(API:0.7.0) release, work with libva 2.5.0
=====================
Major improvements:
+c5507c2 fix build for Celadon android project
+b0ba3b1 fix vp9parser for iHD driver
+f742635 fix build on GCC9
+0c40cbf refact mpeg2 decoder, make it more readable
+37e73be fix YamiParser::NalRreader::getPos conner case
We bump api for
+b0b0a21 add motion adaptive and compensated deinterlace mode
libyami 1.3.1(API:0.6.0) release, work with libva 2.2.1.pre1 release
=====================
Major improvements:
+af43e95 h264dec: fix low lantecy mode
+160286a Add flags for SDL signoff called SDL325 - Compile With Defenses Enabled
+727db97 common: add RGB 10 bits support
+46c15b1 common: add RGB565 support
+946b7ac common: add XRGB, ARGB, XBGR, ABGR support
+9e1fc1d android: re-enable android build
+3745982 yamivpp: add rotation function for vpp
libyami 1.2.0(API:0.5.0) release, work with libva 1.8.1 release
=====================
Major improvements:
+180c3d5 improve vp9 10 bit decoder conformance
+8d29d2d improve h265 8/10 bit decoder conformance
+5b09484 add decoder/display zero-copy API.
+e46f03b use decoder/display zero copy API in v4l2 decoder
+441ee54 expose vp9 qp setting to the user.
We change API to from 0.4.0 to 0.5.0 for following interface changes.
+1fe162e get/set surface in SurfaceAllocParams
+7560ce7 add VIDEO_DATA_MEMORY_TYPE_EXTERNAL_DMA_BUF
libyami 1.1.0(API:0.4.0) release, work with libva 1.7.3 release
=====================
We add following major features:
+c8299ca add h265 10 bits decoder
+ea3bc34 add vp9 10 bits decoder
+c7364f0 add h265 10 bits encoder
+3daae20 add Hue, Saturation, Brightness and Contrast to vpp
+0c8299c fix memory leak issue in v4l2
+71ec018 fix h264 baseline encoder fail issue
+d39104d fix h264/h265 encoder generate invalid frame for long GOP
-h265,vp9 10 bits conformance pass rate is not high.
We change API from 0.3.2 to 0.4.0 since following interface change
+7c6050b add enablePrefixNalUnit to h264 encoder
+3daae20 add Hue, Saturation, Brightness and Contrast to vpp
+c7364f0 add h265 10 bits encoder
libyami 1.0.1(API:0.3.2) release, work with libva 1.7.3 release
=====================
This release mainly for SVC-T CBR support.We add following features:
+0a241d2 add h264 SVC-T CBR support. This need libva 1.7.3.
+77ba612 fix h264/h265 nalread issue in 32 bits arch
+2c1fcf3 h264parser: change luma_weight_lx from int8_t to int16_t to avoid overflow
+e2a9e07 vp8parser: fix one decoder conformance issue.
+fb83012 make yocto buildable
+518088e add wireframe function to ocl filters
+other small issues.
We change API from 0.3.0 to 0.3.2 since following interface change
+518088e add wireframe function to ocl filters
+0a241d2 add h264 SVC-T CBR support.
libyami 1.0.0(API:0.3.0) release, work with libva 2016Q3 release
=====================
We add following major features:
+ 7423a97 add vp9 encoder
+ f6f1483 add sharpening, denoise, deinterlace for vpp
+ 366d909 add support for 422H, 422V and 444P
+ 2d4a536 add wayland support to v4l2decoder
+ 784ea0f improve h264 encoder speed for memory limited system
+ e57989f improve mpeg2 pass rate from 70% to 100%
+ 112b921 improve vc1 pass rate from 70% to 92%
+ 7f2e032 add profile setting for h264encoder
+ some more encoder setting for h264 and h265
+ more bugs fix and features please refer to git log
- convert odd resolution from NV12 to I420 will make output yuv twisted
- some unittest will failed.
We change API from 0.2.0 to 0.3.0 since following interface change
9f45ee7 add vp9 encoder
765cb6d add single header Yami.h/YamiC.h for user to include
99b85bc map tr1 name space to std name space
ea0b5fd add SVC-T support for h264 CQP mode
366d909 add support for jpeg 422H, 422V and 444P
2d4a536 add wayland support to v4l2decoder
1b53e29 deleted some unused encoder API
3147d36 enc264: implement I/P/B QP setting on CQP mode
f6f1483 vpp: add denoise,sharpening and deinterlace
libyami 0.4.0 release, work with libva 2016Q2 release
=====================
We relicensed entire project from LGPL to Apache V2
+add mpeg2 decoder
+add vc1 decoder
+merge all so to single libyami.so
-mpeg2/vc1 pass conformance rate is 70%
fix patch should ready in near future.
libyami 0.3.1 release, work with libva 2015Q4 release
=====================
+b frame for h264 encoder
+CBR for h265 encoder
+yamitransocde application, it will do zero copy transcode, much faster than yamiencode
+fix static library link issue
+fix various issue in vaapidisplay, vp8dec, h264enc, h265enc, factory
-transocde application will use default configuration, it did not use user set one.
-if you use latest ffmpeg, vp9 decoder will failed for some clips.mentioned in #347.
it's not core library's issue. It's a yamidecode's issue.
You can use ffmpeg 2.6 as workaround.
libyami 0.3.0 release, work with libva 2015Q3 release
=====================
+h265 decoder
+h265 encoder
+new mode -2 for yamidecode, it will output per frame md5 for decoded yuv
+some bug fix for vp8,vp9,h264 conformance.
+simplify configure.ac
libyami 0.2.5 release, work with libva 2015Q2 release
=====================
+update codec parser to latest version
+fix all compile warnings.
+add CBR for h264 and vp8 encoder.
+add "SharedPtr<VideoFrame> getOutput()" to decoder
+fix one loop filter issue in vp8dec
+1 bug in NativeDisplayDrm
+handle annexb format codec data in h264 decoder
+one “deref NULL” bug in v4l2 encoder.
+self-register enc/dec/vpp with their factories.
+add a simple player to demo decoder api usage(200 lines)
+add grid application to demo MxN ways decode + dipslay
+select driver name base on decoder profile
libyami 0.2.4 release
=====================
+add vpp interface for c++
+fix momory leak, uinitilized variable and invalid read reported by valgrind
+3 bug fix for vp8 encoder.
+.gitignore file
+ update correct profile name for vp9 since libva updated.
+fix "resolution changed in v4l2 egl mode makes yami crash" issue
-decode output dump can't gusss output fourcc from file extension
libyami 0.2.3 release
=====================
+add VIDIOC_G_CROP to io ctrl
+fix one ImagePtr leak issue, since ImagePtr hold DisplayPtr, it also leak VaapiDisplay
libyami 0.2.2 release
=====================
features update
---------------
+fix one include issue in capi header
+3 fixes for vp9 decoder and parser
+use cabac as default entropy mode for h264 encoder
+fix servral issues when we use v4l2 decoder in gles mode
libyami 0.2.1 release
=====================
the main target of this release is bug fix, especially the busy waiting issue.
features update
---------------
+fix one busy waiting bug in v4l2decoder.
-It will drain out cpu resource even we pause the video.
+4 patches apply to fix vp9 conformance test.
+add fakedec, it's good start for performance measure.
+fix random crash bug when we use "yamidecoder -m -1"
libyami 0.2.0 release
=====================
features update
---------------
+ add VP9 decoder
+ add VP8 encoder
+ add JPEG encoder
+ add Demux support leverage libavformat,: --enable-avformat
- yamidecode runs ok when there is no xwindow rendering (-m -1/0)
- v4l2decode is ok when there is with or w/o rendering
- support libvaformat from the version installed in Ubuntu13.10
- known issue: when there is video rendering, yamidecode blocks at
XGetWindowAttributes() after libva dlopen(i965_drv).
Add XInitThreads() make things worse. It is strange.
+ Fps update for "-m -1", we get stable performance data now
+ V4l2 fixes: seek, unconditionally stop
+ enable FFmpeg to use libyami for h264 decoding, create example player to
demonstrate it, especially on rendering video as texture through dma_buf
https://github.com/01org/player-ffmpeg-yami
known issues
---------------
- for avformat support in yamidecode, when there is video rendering,
yamidecode blocks at XGetWindowAttributes() after libva dlopen(i965_drv).
Add XInitThreads() make things worse. It is strange.
v4l2decode doesn't have such issue. (yamidecode is one thread application)
thoughts on libyami (media framework and window system support)
--------------------------------------------------
these points are not our priority yet.
+ Wayland support
We did a lot to support Wayland before:
- add Wayland platform support in libva and driver, does hack to
copy wayland-drm protocol from mesa/egl
- add Wayland platform in middleware, gstreamer-vaapi for example
the detects are:
- so far, only plain rendering is supported: wl_surface_attach/wl_surface_damage;
texture video rendering is still a gap
- the shared wl_display/wl_window/wl_event_queue are complex and problematic
it should be much easier with dma_buf.
We neend't do anything special for native window system in either vaapi driver or
codec library. with dma_buf handle exported, application can draw the video
frame (dma_buf) by EGL/GLES, EGL handle native window system automatically(including
wrap it into a wl_buffer internally).
+ GStreamer support
We usually do a lot on hw video buffer sharing in GStreamer, hw video buffer are
platform dependent, but the framework requires to wrap them in a generic way. we do
a lot in decoder to wrap a platform dependent handle into a subclass of base
video buffer, then unwrap it in video sink. and tries best to hide hw detail when
a sw component request to access the frame data.
it becomes simple when hw codec support dma_buf, since dma_buf is Linux generic.
it is possible that hw video become not the 2nd class citizen any more. we don't
need additional wrapper in decoder side, and we don't need a special video sink
for each hw video type.
+ dma_buf rendering for legacy support
in the above ideas, we usually consider EGL/GLES rendering context, how about
legacy usage? it is simple as well.
DRI3 protocol support dma_buf, it means a dma_buf handle can be sent to server
for window update. Keith said mesa is using it, and on server side glamor handle
the dma_buf. the remaining gap is that YUV buffer hasn't been supported yet, but
not hard to add it.
libyami 0.1.4 release
=====================
features update
---------------
- Additional fixes(most are thread race condition) for v4l2 wrapper (egl/gles)
- Add glx support in v4l2 wrapper
- Basic transcoding support: encoder test accepts input data from decoder output
- Testscript is added, it supports one-run-for-all: with a folder including h264/vp8/jpeg/raw-ref,
we can test them in one run. It serves as BAT (basic acceptance test) for pull request merge.
- Report fps in decode test, support decoding only test (skip rendering)
- Vp8/jpeg are supported in v4l2 decoder as well
- Decode test can be built/run without X11
- Code refinement for decoder test output and encoder classes
- dma_buf fixes, when video frame is exported as dma_buf, it renders well as texture
- with additional patch for chrome:
V4L2VDA/V4L2VEA pass chrome video unit test
video playback in browser draft ok
- for v4l2 wrapper, see: https://github.com/halleyzhao/yami-share/blob/master/Yami_V4L2_wrapper_for_Chrome.pdf
known issues
---------------
- this release is fully tested by validation team
- some jpeg file similarity <0.99 (~0.98) after decoding
https://github.com/01org/libyami/issues/108
future release plan:
====================
Dec: v0.2
jpeg encoder
vp9 decoder
vp8 encoder (depends on driver availability)
initial ffmpeg support
Feb'15: v0.3
unified input/output buffer of yami
transcoding support with unified input/output buffer
camera dma_buf support, camera with jpeg input
use yami in ffmpeg for hw codec
Future:
h265 decoder
Libyami 0.1 release note
===========================
Libyami is core video library to accelerate decoding/encoding based on libva.
Libyami can be treated as development kit for VAAPI. It is developed by C++ language, with simple/efficient APIs, without external dependencies.
libyami targets two type of usage:
- Hardware accelerated codec is the major gap (there is existing media framework ), for example: Chromeos/Android, maybe ffmpeg.
- Usage is simple enough that codec is the major interest, for example: remote desktop client/server, video surveillance.
So far H.264 decode/encode, VP8 and JPEG decode are supported. VP8/JPEG encode support is under development.
There are rich tests/examples in yami for a try. The tests can run without Window system (X11/Wayland etc),
some modes of video output are supported: including raw data dump and some modes of texture (TFP, drm flink name, dma_buf).
More details see: https://github.com/01org/libyami/wiki
Known issues:
some jpeg file similarity <0.99 (~0.98) after decoding
https://github.com/01org/libyami/issues/108
playback performance through gst-omx is not good:
https://github.com/01org/libyami/issues/34
Encodeing quality through gst-omx is not good:
https://github.com/01org/libyami/issues/36
legacy codec: mpeg2 decoder/encoder, vc1 decoder, mpeg4/h263 decoder/encoder