1 /*****************************************************************************
2 * vaapi.c: VAAPI helpers for the libavcodec decoder
3 *****************************************************************************
4 * Copyright (C) 2009 Laurent Aimar
7 * Authors: Laurent Aimar <fenrir_AT_ videolan _DOT_ org>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU Lesser General Public License as published by
11 * the Free Software Foundation; either version 2.1 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this program; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
30 #include <vlc_common.h>
31 #include <vlc_plugin.h>
32 #include <vlc_fourcc.h>
35 #include <libavcodec/avcodec.h>
36 #include <libavcodec/vaapi.h>
38 #include <va/va_x11.h>
44 #ifndef VA_SURFACE_ATTRIB_SETTABLE
45 #define vaCreateSurfaces(d, f, w, h, s, ns, a, na) \
46 vaCreateSurfaces(d, w, h, f, ns, s)
49 static int Create( vlc_va_t *, int, const es_format_t * );
50 static void Delete( vlc_va_t * );
53 set_description( N_("Video Acceleration (VA) API") )
54 set_capability( "hw decoder", 0 )
55 set_category( CAT_INPUT )
56 set_subcategory( SUBCAT_INPUT_VCODEC )
57 set_callbacks( Create, Delete )
70 Display *p_display_x11;
73 VAConfigID i_config_id;
74 VAContextID i_context_id;
76 struct vaapi_context hw_ctx;
84 unsigned int i_surface_order;
87 vlc_fourcc_t i_surface_chroma;
89 vlc_va_surface_t *p_surface;
92 copy_cache_t image_cache;
94 bool b_supports_derive;
98 static int Open( vlc_va_t *va, int i_codec_id )
100 vlc_va_sys_t *sys = calloc( 1, sizeof(*sys) );
101 if ( unlikely(sys == NULL) )
104 VAProfile i_profile, *p_profiles_list;
105 bool b_supported_profile = false;
106 int i_profiles_nb = 0;
112 case AV_CODEC_ID_MPEG1VIDEO:
113 case AV_CODEC_ID_MPEG2VIDEO:
114 i_profile = VAProfileMPEG2Main;
115 i_surface_count = 2+1;
117 case AV_CODEC_ID_MPEG4:
118 i_profile = VAProfileMPEG4AdvancedSimple;
119 i_surface_count = 2+1;
121 case AV_CODEC_ID_WMV3:
122 i_profile = VAProfileVC1Main;
123 i_surface_count = 2+1;
125 case AV_CODEC_ID_VC1:
126 i_profile = VAProfileVC1Advanced;
127 i_surface_count = 2+1;
129 case AV_CODEC_ID_H264:
130 i_profile = VAProfileH264High;
131 i_surface_count = 16+1;
138 sys->i_config_id = VA_INVALID_ID;
139 sys->i_context_id = VA_INVALID_ID;
140 sys->image.image_id = VA_INVALID_ID;
142 /* Create a VA display */
143 sys->p_display_x11 = XOpenDisplay(NULL);
144 if( !sys->p_display_x11 )
146 msg_Err( va, "Could not connect to X server" );
150 sys->p_display = vaGetDisplay( sys->p_display_x11 );
151 if( !sys->p_display )
153 msg_Err( va, "Could not get a VAAPI device" );
157 if( vaInitialize( sys->p_display, &sys->i_version_major, &sys->i_version_minor ) )
159 msg_Err( va, "Failed to initialize the VAAPI device" );
163 /* Check if the selected profile is supported */
164 i_profiles_nb = vaMaxNumProfiles( sys->p_display );
165 p_profiles_list = calloc( i_profiles_nb, sizeof( VAProfile ) );
166 if( !p_profiles_list )
169 VAStatus i_status = vaQueryConfigProfiles( sys->p_display, p_profiles_list, &i_profiles_nb );
170 if ( i_status == VA_STATUS_SUCCESS )
172 for( int i = 0; i < i_profiles_nb; i++ )
174 if ( p_profiles_list[i] == i_profile )
176 b_supported_profile = true;
181 free( p_profiles_list );
182 if ( !b_supported_profile )
184 msg_Dbg( va, "Codec and profile not supported by the hardware" );
188 /* Create a VA configuration */
189 VAConfigAttrib attrib;
190 memset( &attrib, 0, sizeof(attrib) );
191 attrib.type = VAConfigAttribRTFormat;
192 if( vaGetConfigAttributes( sys->p_display,
193 i_profile, VAEntrypointVLD, &attrib, 1 ) )
196 /* Not sure what to do if not, I don't have a way to test */
197 if( (attrib.value & VA_RT_FORMAT_YUV420) == 0 )
199 if( vaCreateConfig( sys->p_display,
200 i_profile, VAEntrypointVLD, &attrib, 1, &sys->i_config_id ) )
202 sys->i_config_id = VA_INVALID_ID;
206 sys->i_surface_count = i_surface_count;
208 sys->b_supports_derive = false;
210 if( asprintf( &va->description, "VA API version %d.%d",
211 sys->i_version_major, sys->i_version_minor ) < 0 )
212 va->description = NULL;
221 static void DestroySurfaces( vlc_va_sys_t *sys )
223 if( sys->image.image_id != VA_INVALID_ID )
225 CopyCleanCache( &sys->image_cache );
226 vaDestroyImage( sys->p_display, sys->image.image_id );
228 else if(sys->b_supports_derive)
230 CopyCleanCache( &sys->image_cache );
233 if( sys->i_context_id != VA_INVALID_ID )
234 vaDestroyContext( sys->p_display, sys->i_context_id );
236 for( int i = 0; i < sys->i_surface_count && sys->p_surface; i++ )
238 vlc_va_surface_t *p_surface = &sys->p_surface[i];
240 if( p_surface->i_id != VA_INVALID_SURFACE )
241 vaDestroySurfaces( sys->p_display, &p_surface->i_id, 1 );
243 free( sys->p_surface );
246 sys->image.image_id = VA_INVALID_ID;
247 sys->i_context_id = VA_INVALID_ID;
248 sys->p_surface = NULL;
249 sys->i_surface_width = 0;
250 sys->i_surface_height = 0;
252 static int CreateSurfaces( vlc_va_sys_t *sys, void **pp_hw_ctx, vlc_fourcc_t *pi_chroma,
253 int i_width, int i_height )
255 assert( i_width > 0 && i_height > 0 );
258 sys->p_surface = calloc( sys->i_surface_count, sizeof(*sys->p_surface) );
259 if( !sys->p_surface )
261 sys->image.image_id = VA_INVALID_ID;
262 sys->i_context_id = VA_INVALID_ID;
264 /* Create surfaces */
265 VASurfaceID pi_surface_id[sys->i_surface_count];
266 if( vaCreateSurfaces( sys->p_display, VA_RT_FORMAT_YUV420, i_width, i_height,
267 pi_surface_id, sys->i_surface_count, NULL, 0 ) )
269 for( int i = 0; i < sys->i_surface_count; i++ )
270 sys->p_surface[i].i_id = VA_INVALID_SURFACE;
274 for( int i = 0; i < sys->i_surface_count; i++ )
276 vlc_va_surface_t *p_surface = &sys->p_surface[i];
278 p_surface->i_id = pi_surface_id[i];
279 p_surface->i_refcount = 0;
280 p_surface->i_order = 0;
283 /* Create a context */
284 if( vaCreateContext( sys->p_display, sys->i_config_id,
285 i_width, i_height, VA_PROGRESSIVE,
286 pi_surface_id, sys->i_surface_count, &sys->i_context_id ) )
288 sys->i_context_id = VA_INVALID_ID;
292 /* Find and create a supported image chroma */
293 int i_fmt_count = vaMaxNumImageFormats( sys->p_display );
294 VAImageFormat *p_fmt = calloc( i_fmt_count, sizeof(*p_fmt) );
298 if( vaQueryImageFormats( sys->p_display, p_fmt, &i_fmt_count ) )
305 if(vaDeriveImage(sys->p_display, pi_surface_id[0], &test_image) == VA_STATUS_SUCCESS)
307 sys->b_supports_derive = true;
308 vaDestroyImage(sys->p_display, test_image.image_id);
311 vlc_fourcc_t i_chroma = 0;
313 for( int i = 0; i < i_fmt_count; i++ )
315 if( p_fmt[i].fourcc == VA_FOURCC( 'Y', 'V', '1', '2' ) ||
316 p_fmt[i].fourcc == VA_FOURCC( 'I', '4', '2', '0' ) ||
317 p_fmt[i].fourcc == VA_FOURCC( 'N', 'V', '1', '2' ) )
319 if( vaCreateImage( sys->p_display, &p_fmt[i], i_width, i_height, &sys->image ) )
321 sys->image.image_id = VA_INVALID_ID;
324 /* Validate that vaGetImage works with this format */
325 if( vaGetImage( sys->p_display, pi_surface_id[0],
326 0, 0, i_width, i_height,
327 sys->image.image_id) )
329 vaDestroyImage( sys->p_display, sys->image.image_id );
330 sys->image.image_id = VA_INVALID_ID;
334 i_chroma = VLC_CODEC_YV12;
342 *pi_chroma = i_chroma;
344 if(sys->b_supports_derive)
346 vaDestroyImage( sys->p_display, sys->image.image_id );
347 sys->image.image_id = VA_INVALID_ID;
350 if( unlikely(CopyInitCache( &sys->image_cache, i_width )) )
353 /* Setup the ffmpeg hardware context */
354 *pp_hw_ctx = &sys->hw_ctx;
356 memset( &sys->hw_ctx, 0, sizeof(sys->hw_ctx) );
357 sys->hw_ctx.display = sys->p_display;
358 sys->hw_ctx.config_id = sys->i_config_id;
359 sys->hw_ctx.context_id = sys->i_context_id;
362 sys->i_surface_chroma = i_chroma;
363 sys->i_surface_width = i_width;
364 sys->i_surface_height = i_height;
368 DestroySurfaces( sys );
372 static int Setup( vlc_va_t *va, void **pp_hw_ctx, vlc_fourcc_t *pi_chroma,
373 int i_width, int i_height )
375 vlc_va_sys_t *sys = va->sys;
377 if( sys->i_surface_width == i_width &&
378 sys->i_surface_height == i_height )
380 *pp_hw_ctx = &sys->hw_ctx;
381 *pi_chroma = sys->i_surface_chroma;
387 if( sys->i_surface_width || sys->i_surface_height )
388 DestroySurfaces( sys );
390 if( i_width > 0 && i_height > 0 )
391 return CreateSurfaces( sys, pp_hw_ctx, pi_chroma, i_width, i_height );
395 static int Extract( vlc_va_t *va, picture_t *p_picture, AVFrame *p_ff )
397 vlc_va_sys_t *sys = va->sys;
399 VASurfaceID i_surface_id = (VASurfaceID)(uintptr_t)p_ff->data[3];
401 #if VA_CHECK_VERSION(0,31,0)
402 if( vaSyncSurface( sys->p_display, i_surface_id ) )
404 if( vaSyncSurface( sys->p_display, sys->i_context_id, i_surface_id ) )
408 if(sys->b_supports_derive)
410 if(vaDeriveImage(sys->p_display, i_surface_id, &(sys->image)) != VA_STATUS_SUCCESS)
415 if( vaGetImage( sys->p_display, i_surface_id,
416 0, 0, sys->i_surface_width, sys->i_surface_height,
417 sys->image.image_id) )
422 if( vaMapBuffer( sys->p_display, sys->image.buf, &p_base ) )
425 const uint32_t i_fourcc = sys->image.format.fourcc;
426 if( i_fourcc == VA_FOURCC('Y','V','1','2') ||
427 i_fourcc == VA_FOURCC('I','4','2','0') )
429 bool b_swap_uv = i_fourcc == VA_FOURCC('I','4','2','0');
430 uint8_t *pp_plane[3];
433 for( int i = 0; i < 3; i++ )
435 const int i_src_plane = (b_swap_uv && i != 0) ? (3 - i) : i;
436 pp_plane[i] = (uint8_t*)p_base + sys->image.offsets[i_src_plane];
437 pi_pitch[i] = sys->image.pitches[i_src_plane];
439 CopyFromYv12( p_picture, pp_plane, pi_pitch,
440 sys->i_surface_width,
441 sys->i_surface_height,
446 assert( i_fourcc == VA_FOURCC('N','V','1','2') );
447 uint8_t *pp_plane[2];
450 for( int i = 0; i < 2; i++ )
452 pp_plane[i] = (uint8_t*)p_base + sys->image.offsets[i];
453 pi_pitch[i] = sys->image.pitches[i];
455 CopyFromNv12( p_picture, pp_plane, pi_pitch,
456 sys->i_surface_width,
457 sys->i_surface_height,
461 if( vaUnmapBuffer( sys->p_display, sys->image.buf ) )
464 if(sys->b_supports_derive)
466 vaDestroyImage( sys->p_display, sys->image.image_id );
467 sys->image.image_id = VA_INVALID_ID;
472 static int Get( vlc_va_t *va, AVFrame *p_ff )
474 vlc_va_sys_t *sys = va->sys;
478 /* Grab an unused surface, in case none are, try the oldest
479 * XXX using the oldest is a workaround in case a problem happens with ffmpeg */
480 for( i = 0, i_old = 0; i < sys->i_surface_count; i++ )
482 vlc_va_surface_t *p_surface = &sys->p_surface[i];
484 if( !p_surface->i_refcount )
487 if( p_surface->i_order < sys->p_surface[i_old].i_order )
490 if( i >= sys->i_surface_count )
493 vlc_va_surface_t *p_surface = &sys->p_surface[i];
495 p_surface->i_refcount = 1;
496 p_surface->i_order = sys->i_surface_order++;
499 for( int i = 0; i < 4; i++ )
501 p_ff->data[i] = NULL;
502 p_ff->linesize[i] = 0;
504 if( i == 0 || i == 3 )
505 p_ff->data[i] = (void*)(uintptr_t)p_surface->i_id;/* Yummie */
509 static void Release( vlc_va_t *va, AVFrame *p_ff )
511 vlc_va_sys_t *sys = va->sys;
513 VASurfaceID i_surface_id = (VASurfaceID)(uintptr_t)p_ff->data[3];
515 for( int i = 0; i < sys->i_surface_count; i++ )
517 vlc_va_surface_t *p_surface = &sys->p_surface[i];
519 if( p_surface->i_id == i_surface_id )
520 p_surface->i_refcount--;
524 static void Close( vlc_va_sys_t *sys )
526 if( sys->i_surface_width || sys->i_surface_height )
527 DestroySurfaces( sys );
529 if( sys->i_config_id != VA_INVALID_ID )
530 vaDestroyConfig( sys->p_display, sys->i_config_id );
532 vaTerminate( sys->p_display );
533 if( sys->p_display_x11 )
534 XCloseDisplay( sys->p_display_x11 );
537 static void Delete( vlc_va_t *va )
539 vlc_va_sys_t *sys = va->sys;
541 free( va->description );
545 static int Create( vlc_va_t *p_va, int i_codec_id, const es_format_t *fmt )
547 if( !vlc_xlib_init( VLC_OBJECT(p_va) ) )
549 msg_Warn( p_va, "Ignoring VA API" );
555 int err = Open( p_va, i_codec_id );
559 /* Only VLD supported */
560 p_va->pix_fmt = PIX_FMT_VAAPI_VLD;
563 p_va->release = Release;
564 p_va->extract = Extract;