decode.c revision 1d1d038c85ebb37f1da4540f092563e8ecab7dfb 
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 <util/u_memory.h>
29#include <util/u_math.h>
30#include <util/u_debug.h>
31
32#include "vdpau_private.h"
33
34VdpStatus
35vlVdpDecoderCreate(VdpDevice device,
36                   VdpDecoderProfile profile,
37                   uint32_t width, uint32_t height,
38                   uint32_t max_references,
39                   VdpDecoder *decoder)
40{
41   enum pipe_video_profile p_profile;
42   struct pipe_context *pipe;
43   vlVdpDevice *dev;
44   vlVdpDecoder *vldecoder;
45   VdpStatus ret;
46   unsigned i;
47
48   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Creating decoder\n");
49
50   if (!decoder)
51      return VDP_STATUS_INVALID_POINTER;
52
53   if (!(width && height))
54      return VDP_STATUS_INVALID_VALUE;
55
56   p_profile = ProfileToPipe(profile);
57   if (p_profile == PIPE_VIDEO_PROFILE_UNKNOWN)
58      return VDP_STATUS_INVALID_DECODER_PROFILE;
59
60   dev = vlGetDataHTAB(device);
61   if (!dev)
62      return VDP_STATUS_INVALID_HANDLE;
63
64   pipe = dev->context->pipe;
65
66   vldecoder = CALLOC(1,sizeof(vlVdpDecoder));
67   if (!vldecoder)
68      return VDP_STATUS_RESOURCES;
69
70   vldecoder->device = dev;
71
72   // TODO: Define max_references. Used mainly for H264
73   vldecoder->decoder = pipe->create_video_decoder
74   (
75      pipe, p_profile,
76      PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
77      PIPE_VIDEO_CHROMA_FORMAT_420,
78      width, height
79   );
80   if (!vldecoder->decoder) {
81      ret = VDP_STATUS_ERROR;
82      goto error_decoder;
83   }
84
85   vldecoder->cur_buffer = 0;
86
87   for (i = 0; i < VL_NUM_DECODE_BUFFERS; ++i) {
88      vldecoder->buffer[i] = vldecoder->decoder->create_buffer(vldecoder->decoder);
89      if (!vldecoder->buffer[i]) {
90         ret = VDP_STATUS_ERROR;
91         goto error_buffer;
92      }
93   }
94
95   *decoder = vlAddDataHTAB(vldecoder);
96   if (*decoder == 0) {
97      ret = VDP_STATUS_ERROR;
98      goto error_handle;
99   }
100
101   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Decoder created succesfully\n");
102
103   return VDP_STATUS_OK;
104
105error_handle:
106error_buffer:
107
108   for (i = 0; i < VL_NUM_DECODE_BUFFERS; ++i)
109      if (vldecoder->buffer[i])
110         vldecoder->decoder->destroy_buffer(vldecoder->decoder, vldecoder->buffer[i]);
111
112   vldecoder->decoder->destroy(vldecoder->decoder);
113
114error_decoder:
115   FREE(vldecoder);
116   return ret;
117}
118
119VdpStatus
120vlVdpDecoderDestroy(VdpDecoder decoder)
121{
122   vlVdpDecoder *vldecoder;
123   unsigned i;
124
125   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Destroying decoder\n");
126
127   vldecoder = (vlVdpDecoder *)vlGetDataHTAB(decoder);
128   if (!vldecoder)
129      return VDP_STATUS_INVALID_HANDLE;
130
131   for (i = 0; i < VL_NUM_DECODE_BUFFERS; ++i)
132      if (vldecoder->buffer[i])
133         vldecoder->decoder->destroy_buffer(vldecoder->decoder, vldecoder->buffer[i]);
134
135   vldecoder->decoder->destroy(vldecoder->decoder);
136
137   FREE(vldecoder);
138
139   return VDP_STATUS_OK;
140}
141
142VdpStatus
143vlVdpDecoderGetParameters(VdpDecoder decoder,
144                          VdpDecoderProfile *profile,
145                          uint32_t *width,
146                          uint32_t *height)
147{
148   vlVdpDecoder *vldecoder;
149
150   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] decoder get parameters called\n");
151
152   vldecoder = (vlVdpDecoder *)vlGetDataHTAB(decoder);
153   if (!vldecoder)
154      return VDP_STATUS_INVALID_HANDLE;
155
156   *profile = PipeToProfile(vldecoder->decoder->profile);
157   *width = vldecoder->decoder->width;
158   *height = vldecoder->decoder->height;
159
160   return VDP_STATUS_OK;
161}
162
163static VdpStatus
164vlVdpDecoderRenderMpeg12(struct pipe_video_decoder *decoder,
165                         VdpPictureInfoMPEG1Or2 *picture_info,
166                         uint32_t bitstream_buffer_count,
167                         VdpBitstreamBuffer const *bitstream_buffers)
168{
169   struct pipe_mpeg12_picture_desc picture;
170   struct pipe_video_buffer *ref_frames[2];
171   uint8_t intra_quantizer_matrix[64];
172   unsigned num_ycbcr_blocks[3] = { 0, 0, 0 };
173   unsigned i;
174
175   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Decoding MPEG2\n");
176
177   i = 0;
178
179   /* if surfaces equals VDP_STATUS_INVALID_HANDLE, they are not used */
180   if (picture_info->forward_reference !=  VDP_INVALID_HANDLE) {
181      ref_frames[i] = ((vlVdpSurface *)vlGetDataHTAB(picture_info->forward_reference))->video_buffer;
182      if (!ref_frames[i])
183         return VDP_STATUS_INVALID_HANDLE;
184      ++i;
185   }
186
187   if (picture_info->backward_reference !=  VDP_INVALID_HANDLE) {
188      ref_frames[i] = ((vlVdpSurface *)vlGetDataHTAB(picture_info->backward_reference))->video_buffer;
189      if (!ref_frames[i])
190         return VDP_STATUS_INVALID_HANDLE;
191      ++i;
192   }
193
194   decoder->set_reference_frames(decoder, ref_frames, i);
195
196   memset(&picture, 0, sizeof(picture));
197   picture.base.profile = decoder->profile;
198   picture.picture_coding_type = picture_info->picture_coding_type;
199   picture.picture_structure = picture_info->picture_structure;
200   picture.frame_pred_frame_dct = picture_info->frame_pred_frame_dct;
201   picture.q_scale_type = picture_info->q_scale_type;
202   picture.alternate_scan = picture_info->alternate_scan;
203   picture.intra_vlc_format = picture_info->intra_vlc_format;
204   picture.concealment_motion_vectors = picture_info->concealment_motion_vectors;
205   picture.f_code[0][0] = picture_info->f_code[0][0] - 1;
206   picture.f_code[0][1] = picture_info->f_code[0][1] - 1;
207   picture.f_code[1][0] = picture_info->f_code[1][0] - 1;
208   picture.f_code[1][1] = picture_info->f_code[1][1] - 1;
209
210   decoder->set_picture_parameters(decoder, &picture.base);
211
212   memcpy(intra_quantizer_matrix, picture_info->intra_quantizer_matrix, sizeof(intra_quantizer_matrix));
213   intra_quantizer_matrix[0] = 1 << (7 - picture_info->intra_dc_precision);
214   decoder->set_quant_matrix(decoder, intra_quantizer_matrix, picture_info->non_intra_quantizer_matrix);
215
216   decoder->begin_frame(decoder);
217
218   for (i = 0; i < bitstream_buffer_count; ++i)
219      decoder->decode_bitstream(decoder, bitstream_buffers[i].bitstream_bytes,
220                                bitstream_buffers[i].bitstream, num_ycbcr_blocks);
221
222   decoder->end_frame(decoder, num_ycbcr_blocks);
223
224   return VDP_STATUS_OK;
225}
226
227VdpStatus
228vlVdpDecoderRender(VdpDecoder decoder,
229                   VdpVideoSurface target,
230                   VdpPictureInfo const *picture_info,
231                   uint32_t bitstream_buffer_count,
232                   VdpBitstreamBuffer const *bitstream_buffers)
233{
234   vlVdpDecoder *vldecoder;
235   vlVdpSurface *vlsurf;
236
237   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Decoding\n");
238
239   if (!(picture_info && bitstream_buffers))
240      return VDP_STATUS_INVALID_POINTER;
241
242   vldecoder = (vlVdpDecoder *)vlGetDataHTAB(decoder);
243   if (!vldecoder)
244      return VDP_STATUS_INVALID_HANDLE;
245
246   vlsurf = (vlVdpSurface *)vlGetDataHTAB(target);
247   if (!vlsurf)
248      return VDP_STATUS_INVALID_HANDLE;
249
250   if (vlsurf->device != vldecoder->device)
251      return VDP_STATUS_HANDLE_DEVICE_MISMATCH;
252
253   if (vlsurf->video_buffer->chroma_format != vldecoder->decoder->chroma_format)
254      // TODO: Recreate decoder with correct chroma
255      return VDP_STATUS_INVALID_CHROMA_TYPE;
256
257   // TODO: Right now only mpeg 1 & 2 is supported.
258   switch (vldecoder->decoder->profile)   {
259   case PIPE_VIDEO_PROFILE_MPEG1:
260   case PIPE_VIDEO_PROFILE_MPEG2_SIMPLE:
261   case PIPE_VIDEO_PROFILE_MPEG2_MAIN:
262      ++vldecoder->cur_buffer;
263      vldecoder->cur_buffer %= VL_NUM_DECODE_BUFFERS;
264
265      vldecoder->decoder->set_decode_buffer(vldecoder->decoder, vldecoder->buffer[vldecoder->cur_buffer]);
266      vldecoder->decoder->set_decode_target(vldecoder->decoder, vlsurf->video_buffer);
267
268      return vlVdpDecoderRenderMpeg12(vldecoder->decoder, (VdpPictureInfoMPEG1Or2 *)picture_info,
269                                      bitstream_buffer_count, bitstream_buffers);
270      break;
271
272   default:
273      return VDP_STATUS_INVALID_DECODER_PROFILE;
274   }
275}
276