decode.c revision d3770d6229d95e9beb67358ae2b2c8824ed3ae58 
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->num_buffers = pipe->screen->get_video_param
86   (
87      pipe->screen, p_profile,
88      PIPE_VIDEO_CAP_NUM_BUFFERS_DESIRED
89   );
90   vldecoder->cur_buffer = 0;
91
92   vldecoder->buffers = CALLOC(vldecoder->num_buffers, sizeof(void*));
93   if (!vldecoder->buffers)
94         goto error_alloc_buffers;
95
96   for (i = 0; i < vldecoder->num_buffers; ++i) {
97      vldecoder->buffers[i] = vldecoder->decoder->create_buffer(vldecoder->decoder);
98      if (!vldecoder->buffers[i]) {
99         ret = VDP_STATUS_ERROR;
100         goto error_create_buffers;
101      }
102   }
103
104   *decoder = vlAddDataHTAB(vldecoder);
105   if (*decoder == 0) {
106      ret = VDP_STATUS_ERROR;
107      goto error_handle;
108   }
109
110   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Decoder created succesfully\n");
111
112   return VDP_STATUS_OK;
113
114error_handle:
115error_create_buffers:
116
117   for (i = 0; i < vldecoder->num_buffers; ++i)
118      if (vldecoder->buffers[i])
119         vldecoder->decoder->destroy_buffer(vldecoder->decoder, vldecoder->buffers[i]);
120
121   FREE(vldecoder->buffers);
122
123error_alloc_buffers:
124
125   vldecoder->decoder->destroy(vldecoder->decoder);
126
127error_decoder:
128   FREE(vldecoder);
129   return ret;
130}
131
132VdpStatus
133vlVdpDecoderDestroy(VdpDecoder decoder)
134{
135   vlVdpDecoder *vldecoder;
136   unsigned i;
137
138   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Destroying decoder\n");
139
140   vldecoder = (vlVdpDecoder *)vlGetDataHTAB(decoder);
141   if (!vldecoder)
142      return VDP_STATUS_INVALID_HANDLE;
143
144   for (i = 0; i < vldecoder->num_buffers; ++i)
145      if (vldecoder->buffers[i])
146         vldecoder->decoder->destroy_buffer(vldecoder->decoder, vldecoder->buffers[i]);
147
148   FREE(vldecoder->buffers);
149
150   vldecoder->decoder->destroy(vldecoder->decoder);
151
152   FREE(vldecoder);
153
154   return VDP_STATUS_OK;
155}
156
157VdpStatus
158vlVdpDecoderGetParameters(VdpDecoder decoder,
159                          VdpDecoderProfile *profile,
160                          uint32_t *width,
161                          uint32_t *height)
162{
163   vlVdpDecoder *vldecoder;
164
165   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] decoder get parameters called\n");
166
167   vldecoder = (vlVdpDecoder *)vlGetDataHTAB(decoder);
168   if (!vldecoder)
169      return VDP_STATUS_INVALID_HANDLE;
170
171   *profile = PipeToProfile(vldecoder->decoder->profile);
172   *width = vldecoder->decoder->width;
173   *height = vldecoder->decoder->height;
174
175   return VDP_STATUS_OK;
176}
177
178static VdpStatus
179vlVdpDecoderRenderMpeg12(struct pipe_video_decoder *decoder,
180                         VdpPictureInfoMPEG1Or2 *picture_info,
181                         uint32_t bitstream_buffer_count,
182                         VdpBitstreamBuffer const *bitstream_buffers)
183{
184   struct pipe_mpeg12_picture_desc picture;
185   struct pipe_video_buffer *ref_frames[2];
186   uint8_t intra_quantizer_matrix[64];
187   unsigned i;
188
189   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Decoding MPEG2\n");
190
191   i = 0;
192
193   /* if surfaces equals VDP_STATUS_INVALID_HANDLE, they are not used */
194   if (picture_info->forward_reference !=  VDP_INVALID_HANDLE) {
195      ref_frames[i] = ((vlVdpSurface *)vlGetDataHTAB(picture_info->forward_reference))->video_buffer;
196      if (!ref_frames[i])
197         return VDP_STATUS_INVALID_HANDLE;
198      ++i;
199   }
200
201   if (picture_info->backward_reference !=  VDP_INVALID_HANDLE) {
202      ref_frames[i] = ((vlVdpSurface *)vlGetDataHTAB(picture_info->backward_reference))->video_buffer;
203      if (!ref_frames[i])
204         return VDP_STATUS_INVALID_HANDLE;
205      ++i;
206   }
207
208   decoder->set_reference_frames(decoder, ref_frames, i);
209
210   memset(&picture, 0, sizeof(picture));
211   picture.base.profile = decoder->profile;
212   picture.picture_coding_type = picture_info->picture_coding_type;
213   picture.picture_structure = picture_info->picture_structure;
214   picture.frame_pred_frame_dct = picture_info->frame_pred_frame_dct;
215   picture.q_scale_type = picture_info->q_scale_type;
216   picture.alternate_scan = picture_info->alternate_scan;
217   picture.intra_vlc_format = picture_info->intra_vlc_format;
218   picture.concealment_motion_vectors = picture_info->concealment_motion_vectors;
219   picture.f_code[0][0] = picture_info->f_code[0][0] - 1;
220   picture.f_code[0][1] = picture_info->f_code[0][1] - 1;
221   picture.f_code[1][0] = picture_info->f_code[1][0] - 1;
222   picture.f_code[1][1] = picture_info->f_code[1][1] - 1;
223
224   decoder->set_picture_parameters(decoder, &picture.base);
225
226   memcpy(intra_quantizer_matrix, picture_info->intra_quantizer_matrix, sizeof(intra_quantizer_matrix));
227   intra_quantizer_matrix[0] = 1 << (7 - picture_info->intra_dc_precision);
228   decoder->set_quant_matrix(decoder, intra_quantizer_matrix, picture_info->non_intra_quantizer_matrix);
229
230   decoder->begin_frame(decoder);
231
232   for (i = 0; i < bitstream_buffer_count; ++i)
233      decoder->decode_bitstream(decoder, bitstream_buffers[i].bitstream_bytes,
234                                bitstream_buffers[i].bitstream);
235
236   decoder->end_frame(decoder);
237
238   return VDP_STATUS_OK;
239}
240
241VdpStatus
242vlVdpDecoderRender(VdpDecoder decoder,
243                   VdpVideoSurface target,
244                   VdpPictureInfo const *picture_info,
245                   uint32_t bitstream_buffer_count,
246                   VdpBitstreamBuffer const *bitstream_buffers)
247{
248   vlVdpDecoder *vldecoder;
249   vlVdpSurface *vlsurf;
250
251   VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Decoding\n");
252
253   if (!(picture_info && bitstream_buffers))
254      return VDP_STATUS_INVALID_POINTER;
255
256   vldecoder = (vlVdpDecoder *)vlGetDataHTAB(decoder);
257   if (!vldecoder)
258      return VDP_STATUS_INVALID_HANDLE;
259
260   vlsurf = (vlVdpSurface *)vlGetDataHTAB(target);
261   if (!vlsurf)
262      return VDP_STATUS_INVALID_HANDLE;
263
264   if (vlsurf->device != vldecoder->device)
265      return VDP_STATUS_HANDLE_DEVICE_MISMATCH;
266
267   if (vlsurf->video_buffer->chroma_format != vldecoder->decoder->chroma_format)
268      // TODO: Recreate decoder with correct chroma
269      return VDP_STATUS_INVALID_CHROMA_TYPE;
270
271   // TODO: Right now only mpeg 1 & 2 is supported.
272   switch (vldecoder->decoder->profile)   {
273   case PIPE_VIDEO_PROFILE_MPEG1:
274   case PIPE_VIDEO_PROFILE_MPEG2_SIMPLE:
275   case PIPE_VIDEO_PROFILE_MPEG2_MAIN:
276      ++vldecoder->cur_buffer;
277      vldecoder->cur_buffer %= vldecoder->num_buffers;
278
279      vldecoder->decoder->set_decode_buffer(vldecoder->decoder, vldecoder->buffers[vldecoder->cur_buffer]);
280      vldecoder->decoder->set_decode_target(vldecoder->decoder, vlsurf->video_buffer);
281
282      return vlVdpDecoderRenderMpeg12(vldecoder->decoder, (VdpPictureInfoMPEG1Or2 *)picture_info,
283                                      bitstream_buffer_count, bitstream_buffers);
284      break;
285
286   default:
287      return VDP_STATUS_INVALID_DECODER_PROFILE;
288   }
289}
290