decode.c revision 2471acfc4c051d480861265011fa5e77fad02887 
1/**************************************************************************
2 *
3 * Copyright 2010 Thomas Balling Sørensen.
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_context.h>
29
30#include <util/u_memory.h>
31#include <util/u_math.h>
32#include <util/u_debug.h>
33
34#include "vdpau_private.h"
35
36VdpStatus
37vlVdpDecoderCreate(VdpDevice device,
38                   VdpDecoderProfile profile,
39                   uint32_t width, uint32_t height,
40                   uint32_t max_references,
41                   VdpDecoder *decoder)
42{
43   enum pipe_video_profile p_profile;
44   struct pipe_video_context *vpipe;
45   vlVdpDevice *dev;
46   vlVdpDecoder *vldecoder;
47   VdpStatus ret;
48
49   debug_printf("[VDPAU] Creating decoder\n");
50
51   if (!decoder)
52      return VDP_STATUS_INVALID_POINTER;
53
54   if (!(width && height))
55      return VDP_STATUS_INVALID_VALUE;
56
57   p_profile = ProfileToPipe(profile);
58   if (p_profile == PIPE_VIDEO_PROFILE_UNKNOWN)
59      return VDP_STATUS_INVALID_DECODER_PROFILE;
60
61   dev = vlGetDataHTAB(device);
62   if (!dev)
63      return VDP_STATUS_INVALID_HANDLE;
64
65   vpipe = dev->context->vpipe;
66
67   vldecoder = CALLOC(1,sizeof(vlVdpDecoder));
68   if (!vldecoder)
69      return VDP_STATUS_RESOURCES;
70
71   vldecoder->device = dev;
72
73   // TODO: Define max_references. Used mainly for H264
74   vldecoder->decoder = vpipe->create_decoder
75   (
76      vpipe, p_profile,
77      PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
78      PIPE_VIDEO_CHROMA_FORMAT_420,
79      width, height
80   );
81   if (!vldecoder->decoder) {
82      ret = VDP_STATUS_ERROR;
83      goto error_decoder;
84   }
85
86   vldecoder->buffer = vldecoder->decoder->create_buffer(vldecoder->decoder);
87   if (!vldecoder->buffer) {
88      ret = VDP_STATUS_ERROR;
89      goto error_buffer;
90   }
91
92   *decoder = vlAddDataHTAB(vldecoder);
93   if (*decoder == 0) {
94      ret = VDP_STATUS_ERROR;
95      goto error_handle;
96   }
97
98   debug_printf("[VDPAU] Decoder created succesfully\n");
99
100   return VDP_STATUS_OK;
101
102error_handle:
103   vldecoder->buffer->destroy(vldecoder->buffer);
104
105error_buffer:
106   vldecoder->decoder->destroy(vldecoder->decoder);
107
108error_decoder:
109   FREE(vldecoder);
110   return ret;
111}
112
113VdpStatus
114vlVdpDecoderDestroy(VdpDecoder decoder)
115{
116   vlVdpDecoder *vldecoder;
117
118   debug_printf("[VDPAU] Destroying decoder\n");
119
120   vldecoder = (vlVdpDecoder *)vlGetDataHTAB(decoder);
121   if (!vldecoder)
122      return VDP_STATUS_INVALID_HANDLE;
123
124   vldecoder->buffer->destroy(vldecoder->buffer);
125   vldecoder->decoder->destroy(vldecoder->decoder);
126
127   FREE(vldecoder);
128
129   return VDP_STATUS_OK;
130}
131
132VdpStatus
133vlVdpDecoderGetParameters(VdpDecoder decoder,
134                          VdpDecoderProfile *profile,
135                          uint32_t *width,
136                          uint32_t *height)
137{
138   return VDP_STATUS_OK;
139}
140
141static VdpStatus
142vlVdpDecoderRenderMpeg2(struct pipe_video_decoder *decoder,
143                        struct pipe_video_decode_buffer *buffer,
144                        struct pipe_video_buffer *target,
145                        VdpPictureInfoMPEG1Or2 *picture_info,
146                        uint32_t bitstream_buffer_count,
147                        VdpBitstreamBuffer const *bitstream_buffers)
148{
149   struct pipe_video_buffer *ref_frames[2];
150
151   debug_printf("[VDPAU] Decoding MPEG2\n");
152
153   /* if surfaces equals VDP_STATUS_INVALID_HANDLE, they are not used */
154   if (picture_info->backward_reference ==  VDP_INVALID_HANDLE)
155      ref_frames[0] = NULL;
156   else {
157      ref_frames[0] = ((vlVdpSurface *)vlGetDataHTAB(picture_info->backward_reference))->video_buffer;
158      if (!ref_frames[0])
159         return VDP_STATUS_INVALID_HANDLE;
160   }
161
162   if (picture_info->forward_reference ==  VDP_INVALID_HANDLE)
163      ref_frames[1] = NULL;
164   else {
165      ref_frames[1] = ((vlVdpSurface *)vlGetDataHTAB(picture_info->forward_reference))->video_buffer;
166      if (!ref_frames[1])
167         return VDP_STATUS_INVALID_HANDLE;
168   }
169
170   //if (vlVdpMPEG2BitstreamToMacroblock(vpipe->screen, bitstream_buffers, bitstream_buffer_count,
171   //                                    &num_macroblocks, &pipe_macroblocks))
172   //{
173   //   debug_printf("[VDPAU] Error in frame-header. Skipping.\n");
174   //
175   //   ret = VDP_STATUS_OK;
176   //   goto skip_frame;
177   //}
178
179   // TODO
180   //vpipe->set_decode_target(vpipe,t_surf);
181   //vpipe->decode_macroblocks(vpipe, p_surf, f_surf, num_macroblocks,
182   //                          (struct pipe_macroblock *)pipe_macroblocks, NULL);
183
184   return VDP_STATUS_OK;
185}
186
187VdpStatus
188vlVdpDecoderRender(VdpDecoder decoder,
189                   VdpVideoSurface target,
190                   VdpPictureInfo const *picture_info,
191                   uint32_t bitstream_buffer_count,
192                   VdpBitstreamBuffer const *bitstream_buffers)
193{
194   vlVdpDecoder *vldecoder;
195   vlVdpSurface *vlsurf;
196
197   debug_printf("[VDPAU] Decoding\n");
198
199   if (!(picture_info && bitstream_buffers))
200      return VDP_STATUS_INVALID_POINTER;
201
202   vldecoder = (vlVdpDecoder *)vlGetDataHTAB(decoder);
203   if (!vldecoder)
204      return VDP_STATUS_INVALID_HANDLE;
205
206   vlsurf = (vlVdpSurface *)vlGetDataHTAB(target);
207   if (!vlsurf)
208      return VDP_STATUS_INVALID_HANDLE;
209
210   if (vlsurf->device != vldecoder->device)
211      return VDP_STATUS_HANDLE_DEVICE_MISMATCH;
212
213   if (vlsurf->video_buffer->chroma_format != vldecoder->decoder->chroma_format)
214      // TODO: Recreate decoder with correct chroma
215      return VDP_STATUS_INVALID_CHROMA_TYPE;
216
217   // TODO: Right now only mpeg2 is supported.
218   switch (vldecoder->decoder->profile)   {
219   case PIPE_VIDEO_PROFILE_MPEG2_SIMPLE:
220   case PIPE_VIDEO_PROFILE_MPEG2_MAIN:
221      return vlVdpDecoderRenderMpeg2(vldecoder->decoder, vldecoder->buffer,
222                                     vlsurf, (VdpPictureInfoMPEG1Or2 *)picture_info,
223                                     bitstream_buffer_count,bitstream_buffers);
224      break;
225
226   default:
227      return VDP_STATUS_INVALID_DECODER_PROFILE;
228   }
229}
230