1 /**************************************************************************
2 *
3 * Copyright 2009 Younes Manton.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include "pipe/p_video_decoder.h"
29
30 #include "util/u_video.h"
31
32 #include "vl_decoder.h"
33 #include "vl_mpeg12_decoder.h"
34
35 bool
vl_profile_supported(struct pipe_screen * screen,enum pipe_video_profile profile)36 vl_profile_supported(struct pipe_screen *screen, enum pipe_video_profile profile)
37 {
38 assert(screen);
39 switch (u_reduce_video_profile(profile)) {
40 case PIPE_VIDEO_CODEC_MPEG12:
41 return true;
42 default:
43 return false;
44 }
45 }
46
47 struct pipe_video_decoder *
vl_create_decoder(struct pipe_context * pipe,enum pipe_video_profile profile,enum pipe_video_entrypoint entrypoint,enum pipe_video_chroma_format chroma_format,unsigned width,unsigned height,unsigned max_references,bool expect_chunked_decode)48 vl_create_decoder(struct pipe_context *pipe,
49 enum pipe_video_profile profile,
50 enum pipe_video_entrypoint entrypoint,
51 enum pipe_video_chroma_format chroma_format,
52 unsigned width, unsigned height, unsigned max_references,
53 bool expect_chunked_decode)
54 {
55 unsigned buffer_width, buffer_height;
56 bool pot_buffers;
57
58 assert(pipe);
59 assert(width > 0 && height > 0);
60
61 pot_buffers = !pipe->screen->get_video_param
62 (
63 pipe->screen,
64 profile,
65 PIPE_VIDEO_CAP_NPOT_TEXTURES
66 );
67
68 buffer_width = pot_buffers ? util_next_power_of_two(width) : align(width, VL_MACROBLOCK_WIDTH);
69 buffer_height = pot_buffers ? util_next_power_of_two(height) : align(height, VL_MACROBLOCK_HEIGHT);
70
71 switch (u_reduce_video_profile(profile)) {
72 case PIPE_VIDEO_CODEC_MPEG12:
73 return vl_create_mpeg12_decoder(pipe, profile, entrypoint, chroma_format,
74 buffer_width, buffer_height, max_references,
75 expect_chunked_decode);
76 default:
77 return NULL;
78 }
79 return NULL;
80 }
81