1 /*****************************************************************************
2 * vaapi.c: VAAPI helpers for the ffmpeg 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
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 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 General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
28 #include <vlc_common.h>
32 #ifdef HAVE_LIBAVCODEC_AVCODEC_H
33 # include <libavcodec/avcodec.h>
34 #elif defined(HAVE_FFMPEG_AVCODEC_H)
35 # include <ffmpeg/avcodec.h>
44 #ifdef HAVE_AVCODEC_VAAPI
46 #include <libavcodec/vaapi.h>
49 #include <va/va_x11.h>
64 Display *p_display_x11;
67 VAConfigID i_config_id;
68 VAContextID i_context_id;
70 struct vaapi_context hw_ctx;
78 unsigned int i_surface_order;
81 vlc_fourcc_t i_surface_chroma;
83 vlc_va_surface_t *p_surface;
86 copy_cache_t image_cache;
90 static vlc_va_vaapi_t *vlc_va_vaapi_Get( void *p_va )
96 static int Open( vlc_va_vaapi_t *p_va, int i_codec_id )
104 case CODEC_ID_MPEG1VIDEO:
105 case CODEC_ID_MPEG2VIDEO:
106 i_profile = VAProfileMPEG2Main;
107 i_surface_count = 2+1;
110 i_profile = VAProfileMPEG4AdvancedSimple;
111 i_surface_count = 2+1;
114 i_profile = VAProfileVC1Main;
115 i_surface_count = 2+1;
118 i_profile = VAProfileVC1Advanced;
119 i_surface_count = 2+1;
122 i_profile = VAProfileH264High;
123 i_surface_count = 16+1;
130 memset( p_va, 0, sizeof(*p_va) );
132 /* Create a VA display */
133 p_va->p_display_x11 = XOpenDisplay(NULL);
134 if( !p_va->p_display_x11 )
137 p_va->p_display = vaGetDisplay( p_va->p_display_x11 );
138 if( !p_va->p_display )
141 if( vaInitialize( p_va->p_display, &p_va->i_version_major, &p_va->i_version_minor ) )
144 /* Create a VA configuration */
145 VAConfigAttrib attrib;
146 memset( &attrib, 0, sizeof(attrib) );
147 attrib.type = VAConfigAttribRTFormat;
148 if( vaGetConfigAttributes( p_va->p_display,
149 i_profile, VAEntrypointVLD, &attrib, 1 ) )
152 /* Not sure what to do if not, I don't have a way to test */
153 if( (attrib.value & VA_RT_FORMAT_YUV420) == 0 )
155 if( vaCreateConfig( p_va->p_display,
156 i_profile, VAEntrypointVLD, &attrib, 1, &p_va->i_config_id ) )
158 p_va->i_config_id = 0;
162 p_va->i_surface_count = i_surface_count;
164 if( asprintf( &p_va->va.description, "VA API version %d.%d",
165 p_va->i_version_major, p_va->i_version_minor ) < 0 )
166 p_va->va.description = NULL;
174 static void DestroySurfaces( vlc_va_vaapi_t *p_va )
176 if( p_va->image.image_id )
178 CopyCleanCache( &p_va->image_cache );
179 vaDestroyImage( p_va->p_display, p_va->image.image_id );
182 if( p_va->i_context_id )
183 vaDestroyContext( p_va->p_display, p_va->i_context_id );
185 for( int i = 0; i < p_va->i_surface_count && p_va->p_surface; i++ )
187 vlc_va_surface_t *p_surface = &p_va->p_surface[i];
189 if( p_surface->i_id != VA_INVALID_SURFACE )
190 vaDestroySurfaces( p_va->p_display, &p_surface->i_id, 1 );
192 free( p_va->p_surface );
195 p_va->image.image_id = 0;
196 p_va->i_context_id = 0;
197 p_va->p_surface = NULL;
198 p_va->i_surface_width = 0;
199 p_va->i_surface_height = 0;
201 static int CreateSurfaces( vlc_va_vaapi_t *p_va, void **pp_hw_ctx, vlc_fourcc_t *pi_chroma,
202 int i_width, int i_height )
204 assert( i_width > 0 && i_height > 0 );
207 p_va->p_surface = calloc( p_va->i_surface_count, sizeof(*p_va->p_surface) );
208 if( !p_va->p_surface )
211 /* Create surfaces */
212 VASurfaceID pi_surface_id[p_va->i_surface_count];
213 if( vaCreateSurfaces( p_va->p_display, i_width, i_height, VA_RT_FORMAT_YUV420,
214 p_va->i_surface_count, pi_surface_id ) )
216 for( int i = 0; i < p_va->i_surface_count; i++ )
217 p_va->p_surface[i].i_id = VA_INVALID_SURFACE;
221 for( int i = 0; i < p_va->i_surface_count; i++ )
223 vlc_va_surface_t *p_surface = &p_va->p_surface[i];
225 p_surface->i_id = pi_surface_id[i];
226 p_surface->i_refcount = 0;
227 p_surface->i_order = 0;
230 /* Create a context */
231 if( vaCreateContext( p_va->p_display, p_va->i_config_id,
232 i_width, i_height, VA_PROGRESSIVE,
233 pi_surface_id, p_va->i_surface_count, &p_va->i_context_id ) )
235 p_va->i_context_id = 0;
239 /* Find a supported image chroma */
240 int i_fmt_count = vaMaxNumImageFormats( p_va->p_display );
241 VAImageFormat *p_fmt = calloc( i_fmt_count, sizeof(*p_fmt) );
245 if( vaQueryImageFormats( p_va->p_display, p_fmt, &i_fmt_count ) )
251 vlc_fourcc_t i_chroma = 0;
253 for( int i = 0; i < i_fmt_count; i++ )
255 if( p_fmt[i].fourcc == VA_FOURCC( 'Y', 'V', '1', '2' ) ||
256 p_fmt[i].fourcc == VA_FOURCC( 'I', '4', '2', '0' ) ||
257 p_fmt[i].fourcc == VA_FOURCC( 'N', 'V', '1', '2' ) )
259 i_chroma = VLC_CODEC_YV12;
267 *pi_chroma = i_chroma;
269 /* Create an image for surface extraction */
270 if( vaCreateImage( p_va->p_display, &fmt, i_width, i_height, &p_va->image ) )
272 p_va->image.image_id = 0;
275 CopyInitCache( &p_va->image_cache, i_width );
277 /* Setup the ffmpeg hardware context */
278 *pp_hw_ctx = &p_va->hw_ctx;
280 memset( &p_va->hw_ctx, 0, sizeof(p_va->hw_ctx) );
281 p_va->hw_ctx.display = p_va->p_display;
282 p_va->hw_ctx.config_id = p_va->i_config_id;
283 p_va->hw_ctx.context_id = p_va->i_context_id;
286 p_va->i_surface_chroma = i_chroma;
287 p_va->i_surface_width = i_width;
288 p_va->i_surface_height = i_height;
292 DestroySurfaces( p_va );
296 static int Setup( vlc_va_t *p_external, void **pp_hw_ctx, vlc_fourcc_t *pi_chroma,
297 int i_width, int i_height )
299 vlc_va_vaapi_t *p_va = vlc_va_vaapi_Get(p_external);
301 if( p_va->i_surface_width == i_width &&
302 p_va->i_surface_height == i_height )
304 *pp_hw_ctx = &p_va->hw_ctx;
305 *pi_chroma = p_va->i_surface_chroma;
311 if( p_va->i_surface_width || p_va->i_surface_height )
312 DestroySurfaces( p_va );
314 if( i_width > 0 && i_height > 0 )
315 return CreateSurfaces( p_va, pp_hw_ctx, pi_chroma, i_width, i_height );
319 static int Extract( vlc_va_t *p_external, picture_t *p_picture, AVFrame *p_ff )
321 vlc_va_vaapi_t *p_va = vlc_va_vaapi_Get(p_external);
323 if( !p_va->image_cache.buffer )
326 VASurfaceID i_surface_id = (VASurfaceID)(uintptr_t)p_ff->data[3];
328 #if VA_CHECK_VERSION(0,31,0)
329 if( vaSyncSurface( p_va->p_display, i_surface_id ) )
331 if( vaSyncSurface( p_va->p_display, p_va->i_context_id, i_surface_id ) )
335 /* XXX vaDeriveImage may be better but it is not supported by
339 if( vaGetImage( p_va->p_display, i_surface_id,
340 0, 0, p_va->i_surface_width, p_va->i_surface_height,
341 p_va->image.image_id) )
345 if( vaMapBuffer( p_va->p_display, p_va->image.buf, &p_base ) )
348 const uint32_t i_fourcc = p_va->image.format.fourcc;
349 if( i_fourcc == VA_FOURCC('Y','V','1','2') ||
350 i_fourcc == VA_FOURCC('I','4','2','0') )
352 bool b_swap_uv = i_fourcc == VA_FOURCC('I','4','2','0');
353 uint8_t *pp_plane[3];
356 for( int i = 0; i < 3; i++ )
358 const int i_src_plane = (b_swap_uv && i != 0) ? (3 - i) : i;
359 pp_plane[i] = (uint8_t*)p_base + p_va->image.offsets[i_src_plane];
360 pi_pitch[i] = p_va->image.pitches[i_src_plane];
362 CopyFromYv12( p_picture, pp_plane, pi_pitch,
363 p_va->i_surface_width,
364 p_va->i_surface_height,
365 &p_va->image_cache );
369 assert( i_fourcc == VA_FOURCC('N','V','1','2') );
370 uint8_t *pp_plane[2];
373 for( int i = 0; i < 2; i++ )
375 pp_plane[i] = (uint8_t*)p_base + p_va->image.offsets[i];
376 pi_pitch[i] = p_va->image.pitches[i];
378 CopyFromNv12( p_picture, pp_plane, pi_pitch,
379 p_va->i_surface_width,
380 p_va->i_surface_height,
381 &p_va->image_cache );
384 if( vaUnmapBuffer( p_va->p_display, p_va->image.buf ) )
389 static int Get( vlc_va_t *p_external, AVFrame *p_ff )
391 vlc_va_vaapi_t *p_va = vlc_va_vaapi_Get(p_external);
395 /* Grab an unused surface, in case none are, try the oldest
396 * XXX using the oldest is a workaround in case a problem happens with ffmpeg */
397 for( i = 0, i_old = 0; i < p_va->i_surface_count; i++ )
399 vlc_va_surface_t *p_surface = &p_va->p_surface[i];
401 if( !p_surface->i_refcount )
404 if( p_surface->i_order < p_va->p_surface[i_old].i_order )
407 if( i >= p_va->i_surface_count )
410 vlc_va_surface_t *p_surface = &p_va->p_surface[i];
412 p_surface->i_refcount = 1;
413 p_surface->i_order = p_va->i_surface_order++;
416 for( int i = 0; i < 4; i++ )
418 p_ff->data[i] = NULL;
419 p_ff->linesize[i] = 0;
421 if( i == 0 || i == 3 )
422 p_ff->data[i] = (void*)(uintptr_t)p_surface->i_id;/* Yummie */
426 static void Release( vlc_va_t *p_external, AVFrame *p_ff )
428 vlc_va_vaapi_t *p_va = vlc_va_vaapi_Get(p_external);
430 VASurfaceID i_surface_id = (VASurfaceID)(uintptr_t)p_ff->data[3];
432 for( int i = 0; i < p_va->i_surface_count; i++ )
434 vlc_va_surface_t *p_surface = &p_va->p_surface[i];
436 if( p_surface->i_id == i_surface_id )
437 p_surface->i_refcount--;
441 static void Close( vlc_va_vaapi_t *p_va )
443 if( p_va->i_surface_width || p_va->i_surface_height )
444 DestroySurfaces( p_va );
446 if( p_va->i_config_id )
447 vaDestroyConfig( p_va->p_display, p_va->i_config_id );
448 if( p_va->p_display )
449 vaTerminate( p_va->p_display );
450 if( p_va->p_display_x11 )
451 XCloseDisplay( p_va->p_display_x11 );
453 static void Delete( vlc_va_t *p_external )
455 vlc_va_vaapi_t *p_va = vlc_va_vaapi_Get(p_external);
457 free( p_va->va.description );
462 vlc_va_t *vlc_va_NewVaapi( int i_codec_id )
464 if( !XInitThreads() )
467 vlc_va_vaapi_t *p_va = calloc( 1, sizeof(*p_va) );
471 if( Open( p_va, i_codec_id ) )
478 p_va->va.setup = Setup;
480 p_va->va.release = Release;
481 p_va->va.extract = Extract;
482 p_va->va.close = Delete;
486 vlc_va_t *vlc_va_NewVaapi( int i_codec_id )
488 VLC_UNUSED( i_codec_id );