vl_decoder.c revision ea78480029450c019287c2a94d7c42a6a1d12dc3
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 35struct pipe_video_decoder * 36vl_create_decoder(struct pipe_context *pipe, 37 enum pipe_video_profile profile, 38 enum pipe_video_entrypoint entrypoint, 39 enum pipe_video_chroma_format chroma_format, 40 unsigned width, unsigned height) 41{ 42 unsigned buffer_width, buffer_height; 43 bool pot_buffers; 44 45 assert(pipe); 46 assert(width > 0 && height > 0); 47 48 pot_buffers = !pipe->screen->get_video_param 49 ( 50 pipe->screen, 51 profile, 52 PIPE_VIDEO_CAP_NPOT_TEXTURES 53 ); 54 55 buffer_width = pot_buffers ? util_next_power_of_two(width) : align(width, MACROBLOCK_WIDTH); 56 buffer_height = pot_buffers ? util_next_power_of_two(height) : align(height, MACROBLOCK_HEIGHT); 57 58 switch (u_reduce_video_profile(profile)) { 59 case PIPE_VIDEO_CODEC_MPEG12: 60 return vl_create_mpeg12_decoder(pipe, profile, entrypoint, chroma_format, buffer_width, buffer_height); 61 default: 62 return NULL; 63 } 64 return NULL; 65} 66