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>
29 #include <vlc_fourcc.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 if( !XInitThreads() )
136 p_va->p_display_x11 = XOpenDisplay(NULL);
137 if( !p_va->p_display_x11 )
140 p_va->p_display = vaGetDisplay( p_va->p_display_x11 );
141 if( !p_va->p_display )
144 if( vaInitialize( p_va->p_display, &p_va->i_version_major, &p_va->i_version_minor ) )
147 /* Create a VA configuration */
148 VAConfigAttrib attrib;
149 memset( &attrib, 0, sizeof(attrib) );
150 attrib.type = VAConfigAttribRTFormat;
151 if( vaGetConfigAttributes( p_va->p_display,
152 i_profile, VAEntrypointVLD, &attrib, 1 ) )
155 /* Not sure what to do if not, I don't have a way to test */
156 if( (attrib.value & VA_RT_FORMAT_YUV420) == 0 )
158 if( vaCreateConfig( p_va->p_display,
159 i_profile, VAEntrypointVLD, &attrib, 1, &p_va->i_config_id ) )
161 p_va->i_config_id = 0;
165 p_va->i_surface_count = i_surface_count;
167 if( asprintf( &p_va->va.description, "VA API version %d.%d",
168 p_va->i_version_major, p_va->i_version_minor ) < 0 )
169 p_va->va.description = NULL;
177 static void DestroySurfaces( vlc_va_vaapi_t *p_va )
179 if( p_va->image.image_id != VA_INVALID_SURFACE )
181 CopyCleanCache( &p_va->image_cache );
182 vaDestroyImage( p_va->p_display, p_va->image.image_id );
185 if( p_va->i_context_id )
186 vaDestroyContext( p_va->p_display, p_va->i_context_id );
188 for( int i = 0; i < p_va->i_surface_count && p_va->p_surface; i++ )
190 vlc_va_surface_t *p_surface = &p_va->p_surface[i];
192 if( p_surface->i_id != VA_INVALID_SURFACE )
193 vaDestroySurfaces( p_va->p_display, &p_surface->i_id, 1 );
195 free( p_va->p_surface );
198 p_va->image.image_id = VA_INVALID_SURFACE;
199 p_va->i_context_id = 0;
200 p_va->p_surface = NULL;
201 p_va->i_surface_width = 0;
202 p_va->i_surface_height = 0;
204 static int CreateSurfaces( vlc_va_vaapi_t *p_va, void **pp_hw_ctx, vlc_fourcc_t *pi_chroma,
205 int i_width, int i_height )
207 assert( i_width > 0 && i_height > 0 );
210 p_va->p_surface = calloc( p_va->i_surface_count, sizeof(*p_va->p_surface) );
211 if( !p_va->p_surface )
213 p_va->image.image_id = VA_INVALID_SURFACE;
215 /* Create surfaces */
216 VASurfaceID pi_surface_id[p_va->i_surface_count];
217 if( vaCreateSurfaces( p_va->p_display, i_width, i_height, VA_RT_FORMAT_YUV420,
218 p_va->i_surface_count, pi_surface_id ) )
220 for( int i = 0; i < p_va->i_surface_count; i++ )
221 p_va->p_surface[i].i_id = VA_INVALID_SURFACE;
225 for( int i = 0; i < p_va->i_surface_count; i++ )
227 vlc_va_surface_t *p_surface = &p_va->p_surface[i];
229 p_surface->i_id = pi_surface_id[i];
230 p_surface->i_refcount = 0;
231 p_surface->i_order = 0;
234 /* Create a context */
235 if( vaCreateContext( p_va->p_display, p_va->i_config_id,
236 i_width, i_height, VA_PROGRESSIVE,
237 pi_surface_id, p_va->i_surface_count, &p_va->i_context_id ) )
239 p_va->i_context_id = 0;
243 /* Find and create a supported image chroma */
244 int i_fmt_count = vaMaxNumImageFormats( p_va->p_display );
245 VAImageFormat *p_fmt = calloc( i_fmt_count, sizeof(*p_fmt) );
249 if( vaQueryImageFormats( p_va->p_display, p_fmt, &i_fmt_count ) )
255 vlc_fourcc_t i_chroma = 0;
257 for( int i = 0; i < i_fmt_count; i++ )
259 if( p_fmt[i].fourcc == VA_FOURCC( 'Y', 'V', '1', '2' ) ||
260 p_fmt[i].fourcc == VA_FOURCC( 'I', '4', '2', '0' ) ||
261 p_fmt[i].fourcc == VA_FOURCC( 'N', 'V', '1', '2' ) )
263 if( vaCreateImage( p_va->p_display, &p_fmt[i], i_width, i_height, &p_va->image ) )
265 p_va->image.image_id = VA_INVALID_SURFACE;
268 /* Validate that vaGetImage works with this format */
269 if( vaGetImage( p_va->p_display, pi_surface_id[0],
270 0, 0, i_width, i_height,
271 p_va->image.image_id) )
273 vaDestroyImage( p_va->p_display, p_va->image.image_id );
274 p_va->image.image_id = VA_INVALID_SURFACE;
278 i_chroma = VLC_CODEC_YV12;
286 *pi_chroma = i_chroma;
288 CopyInitCache( &p_va->image_cache, i_width );
290 /* Setup the ffmpeg hardware context */
291 *pp_hw_ctx = &p_va->hw_ctx;
293 memset( &p_va->hw_ctx, 0, sizeof(p_va->hw_ctx) );
294 p_va->hw_ctx.display = p_va->p_display;
295 p_va->hw_ctx.config_id = p_va->i_config_id;
296 p_va->hw_ctx.context_id = p_va->i_context_id;
299 p_va->i_surface_chroma = i_chroma;
300 p_va->i_surface_width = i_width;
301 p_va->i_surface_height = i_height;
305 DestroySurfaces( p_va );
309 static int Setup( vlc_va_t *p_external, void **pp_hw_ctx, vlc_fourcc_t *pi_chroma,
310 int i_width, int i_height )
312 vlc_va_vaapi_t *p_va = vlc_va_vaapi_Get(p_external);
314 if( p_va->i_surface_width == i_width &&
315 p_va->i_surface_height == i_height )
317 *pp_hw_ctx = &p_va->hw_ctx;
318 *pi_chroma = p_va->i_surface_chroma;
324 if( p_va->i_surface_width || p_va->i_surface_height )
325 DestroySurfaces( p_va );
327 if( i_width > 0 && i_height > 0 )
328 return CreateSurfaces( p_va, pp_hw_ctx, pi_chroma, i_width, i_height );
332 static int Extract( vlc_va_t *p_external, picture_t *p_picture, AVFrame *p_ff )
334 vlc_va_vaapi_t *p_va = vlc_va_vaapi_Get(p_external);
336 if( !p_va->image_cache.buffer )
339 VASurfaceID i_surface_id = (VASurfaceID)(uintptr_t)p_ff->data[3];
341 #if VA_CHECK_VERSION(0,31,0)
342 if( vaSyncSurface( p_va->p_display, i_surface_id ) )
344 if( vaSyncSurface( p_va->p_display, p_va->i_context_id, i_surface_id ) )
348 /* XXX vaDeriveImage may be better but it is not supported by
352 if( vaGetImage( p_va->p_display, i_surface_id,
353 0, 0, p_va->i_surface_width, p_va->i_surface_height,
354 p_va->image.image_id) )
358 if( vaMapBuffer( p_va->p_display, p_va->image.buf, &p_base ) )
361 const uint32_t i_fourcc = p_va->image.format.fourcc;
362 if( i_fourcc == VA_FOURCC('Y','V','1','2') ||
363 i_fourcc == VA_FOURCC('I','4','2','0') )
365 bool b_swap_uv = i_fourcc == VA_FOURCC('I','4','2','0');
366 uint8_t *pp_plane[3];
369 for( int i = 0; i < 3; i++ )
371 const int i_src_plane = (b_swap_uv && i != 0) ? (3 - i) : i;
372 pp_plane[i] = (uint8_t*)p_base + p_va->image.offsets[i_src_plane];
373 pi_pitch[i] = p_va->image.pitches[i_src_plane];
375 CopyFromYv12( p_picture, pp_plane, pi_pitch,
376 p_va->i_surface_width,
377 p_va->i_surface_height,
378 &p_va->image_cache );
382 assert( i_fourcc == VA_FOURCC('N','V','1','2') );
383 uint8_t *pp_plane[2];
386 for( int i = 0; i < 2; i++ )
388 pp_plane[i] = (uint8_t*)p_base + p_va->image.offsets[i];
389 pi_pitch[i] = p_va->image.pitches[i];
391 CopyFromNv12( p_picture, pp_plane, pi_pitch,
392 p_va->i_surface_width,
393 p_va->i_surface_height,
394 &p_va->image_cache );
397 if( vaUnmapBuffer( p_va->p_display, p_va->image.buf ) )
402 static int Get( vlc_va_t *p_external, AVFrame *p_ff )
404 vlc_va_vaapi_t *p_va = vlc_va_vaapi_Get(p_external);
408 /* Grab an unused surface, in case none are, try the oldest
409 * XXX using the oldest is a workaround in case a problem happens with ffmpeg */
410 for( i = 0, i_old = 0; i < p_va->i_surface_count; i++ )
412 vlc_va_surface_t *p_surface = &p_va->p_surface[i];
414 if( !p_surface->i_refcount )
417 if( p_surface->i_order < p_va->p_surface[i_old].i_order )
420 if( i >= p_va->i_surface_count )
423 vlc_va_surface_t *p_surface = &p_va->p_surface[i];
425 p_surface->i_refcount = 1;
426 p_surface->i_order = p_va->i_surface_order++;
429 for( int i = 0; i < 4; i++ )
431 p_ff->data[i] = NULL;
432 p_ff->linesize[i] = 0;
434 if( i == 0 || i == 3 )
435 p_ff->data[i] = (void*)(uintptr_t)p_surface->i_id;/* Yummie */
439 static void Release( vlc_va_t *p_external, AVFrame *p_ff )
441 vlc_va_vaapi_t *p_va = vlc_va_vaapi_Get(p_external);
443 VASurfaceID i_surface_id = (VASurfaceID)(uintptr_t)p_ff->data[3];
445 for( int i = 0; i < p_va->i_surface_count; i++ )
447 vlc_va_surface_t *p_surface = &p_va->p_surface[i];
449 if( p_surface->i_id == i_surface_id )
450 p_surface->i_refcount--;
454 static void Close( vlc_va_vaapi_t *p_va )
456 if( p_va->i_surface_width || p_va->i_surface_height )
457 DestroySurfaces( p_va );
459 if( p_va->i_config_id )
460 vaDestroyConfig( p_va->p_display, p_va->i_config_id );
461 if( p_va->p_display )
462 vaTerminate( p_va->p_display );
463 if( p_va->p_display_x11 )
464 XCloseDisplay( p_va->p_display_x11 );
466 static void Delete( vlc_va_t *p_external )
468 vlc_va_vaapi_t *p_va = vlc_va_vaapi_Get(p_external);
470 free( p_va->va.description );
475 vlc_va_t *vlc_va_NewVaapi( int i_codec_id )
479 vlc_global_lock( VLC_XLIB_MUTEX );
480 fail = !XInitThreads();
481 vlc_global_unlock( VLC_XLIB_MUTEX );
485 vlc_va_vaapi_t *p_va = calloc( 1, sizeof(*p_va) );
488 if( Open( p_va, i_codec_id ) )
495 p_va->va.setup = Setup;
497 p_va->va.release = Release;
498 p_va->va.extract = Extract;
499 p_va->va.close = Delete;
503 vlc_va_t *vlc_va_NewVaapi( int i_codec_id )
505 VLC_UNUSED( i_codec_id );