/* * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "config_components.h" #include "libavutil/avassert.h" #include "libavutil/common.h" #include "libavutil/mem.h" #include "libavutil/pixdesc.h" #include "avcodec.h" #include "codec_desc.h" #include "decode.h" #include "internal.h" #include "vaapi_decode.h" #include "vaapi_hevc.h" int ff_vaapi_decode_make_param_buffer(AVCodecContext *avctx, VAAPIDecodePicture *pic, int type, const void *data, size_t size) { VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data; VAStatus vas; VABufferID buffer; av_assert0(pic->nb_param_buffers + 1 <= MAX_PARAM_BUFFERS); vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context, type, size, 1, (void*)data, &buffer); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to create parameter " "buffer (type %d): %d (%s).\n", type, vas, vaErrorStr(vas)); return AVERROR(EIO); } pic->param_buffers[pic->nb_param_buffers++] = buffer; av_log(avctx, AV_LOG_DEBUG, "Param buffer (type %d, %zu bytes) " "is %#x.\n", type, size, buffer); return 0; } int ff_vaapi_decode_make_slice_buffer(AVCodecContext *avctx, VAAPIDecodePicture *pic, const void *params_data, int nb_params, size_t params_size, const void *slice_data, size_t slice_size) { VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data; VAStatus vas; int index; av_assert0(pic->nb_slices <= pic->slices_allocated); if (pic->nb_slices == pic->slices_allocated) { VABufferID *tmp = av_realloc_array(pic->slice_buffers, pic->slices_allocated ? pic->slices_allocated * 2 : 64, 2 * sizeof(*pic->slice_buffers)); if (!tmp) return AVERROR(ENOMEM); pic->slice_buffers = tmp; pic->slices_allocated = pic->slices_allocated ? pic->slices_allocated * 2 : 64; } av_assert0(pic->nb_slices + 1 <= pic->slices_allocated); index = 2 * pic->nb_slices; vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context, VASliceParameterBufferType, params_size, nb_params, (void*)params_data, &pic->slice_buffers[index]); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to create slice " "parameter buffer: %d (%s).\n", vas, vaErrorStr(vas)); return AVERROR(EIO); } av_log(avctx, AV_LOG_DEBUG, "Slice %d param buffer (%zu bytes) " "is %#x.\n", pic->nb_slices, params_size, pic->slice_buffers[index]); vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context, VASliceDataBufferType, slice_size, 1, (void*)slice_data, &pic->slice_buffers[index + 1]); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to create slice " "data buffer (size %zu): %d (%s).\n", slice_size, vas, vaErrorStr(vas)); vaDestroyBuffer(ctx->hwctx->display, pic->slice_buffers[index]); return AVERROR(EIO); } av_log(avctx, AV_LOG_DEBUG, "Slice %d data buffer (%zu bytes) " "is %#x.\n", pic->nb_slices, slice_size, pic->slice_buffers[index + 1]); ++pic->nb_slices; return 0; } static void ff_vaapi_decode_destroy_buffers(AVCodecContext *avctx, VAAPIDecodePicture *pic) { VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data; VAStatus vas; int i; for (i = 0; i < pic->nb_param_buffers; i++) { vas = vaDestroyBuffer(ctx->hwctx->display, pic->param_buffers[i]); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to destroy " "parameter buffer %#x: %d (%s).\n", pic->param_buffers[i], vas, vaErrorStr(vas)); } } for (i = 0; i < 2 * pic->nb_slices; i++) { vas = vaDestroyBuffer(ctx->hwctx->display, pic->slice_buffers[i]); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to destroy slice " "slice buffer %#x: %d (%s).\n", pic->slice_buffers[i], vas, vaErrorStr(vas)); } } } int ff_vaapi_decode_issue(AVCodecContext *avctx, VAAPIDecodePicture *pic) { VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data; VAStatus vas; int err; if (pic->nb_slices <= 0) { err = AVERROR(EINVAL); goto fail; } av_log(avctx, AV_LOG_DEBUG, "Decode to surface %#x.\n", pic->output_surface); vas = vaBeginPicture(ctx->hwctx->display, ctx->va_context, pic->output_surface); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to begin picture decode " "issue: %d (%s).\n", vas, vaErrorStr(vas)); err = AVERROR(EIO); goto fail_with_picture; } vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context, pic->param_buffers, pic->nb_param_buffers); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to upload decode " "parameters: %d (%s).\n", vas, vaErrorStr(vas)); err = AVERROR(EIO); goto fail_with_picture; } vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context, pic->slice_buffers, 2 * pic->nb_slices); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to upload slices: " "%d (%s).\n", vas, vaErrorStr(vas)); err = AVERROR(EIO); goto fail_with_picture; } vas = vaEndPicture(ctx->hwctx->display, ctx->va_context); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to end picture decode " "issue: %d (%s).\n", vas, vaErrorStr(vas)); err = AVERROR(EIO); if (CONFIG_VAAPI_1 || ctx->hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS) goto fail; else goto fail_at_end; } if (CONFIG_VAAPI_1 || ctx->hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS) ff_vaapi_decode_destroy_buffers(avctx, pic); err = 0; goto exit; fail_with_picture: vas = vaEndPicture(ctx->hwctx->display, ctx->va_context); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to end picture decode " "after error: %d (%s).\n", vas, vaErrorStr(vas)); } fail: ff_vaapi_decode_destroy_buffers(avctx, pic); fail_at_end: exit: pic->nb_param_buffers = 0; pic->nb_slices = 0; pic->slices_allocated = 0; av_freep(&pic->slice_buffers); return err; } int ff_vaapi_decode_cancel(AVCodecContext *avctx, VAAPIDecodePicture *pic) { ff_vaapi_decode_destroy_buffers(avctx, pic); pic->nb_param_buffers = 0; pic->nb_slices = 0; pic->slices_allocated = 0; av_freep(&pic->slice_buffers); return 0; } static const struct { uint32_t fourcc; enum AVPixelFormat pix_fmt; } vaapi_format_map[] = { #define MAP(va, av) { VA_FOURCC_ ## va, AV_PIX_FMT_ ## av } // 4:0:0 MAP(Y800, GRAY8), // 4:2:0 MAP(NV12, NV12), MAP(YV12, YUV420P), MAP(IYUV, YUV420P), #ifdef VA_FOURCC_I420 MAP(I420, YUV420P), #endif MAP(IMC3, YUV420P), // 4:1:1 MAP(411P, YUV411P), // 4:2:2 MAP(422H, YUV422P), #ifdef VA_FOURCC_YV16 MAP(YV16, YUV422P), #endif MAP(YUY2, YUYV422), #ifdef VA_FOURCC_Y210 MAP(Y210, Y210), #endif #ifdef VA_FOURCC_Y212 MAP(Y212, Y212), #endif // 4:4:0 MAP(422V, YUV440P), // 4:4:4 MAP(444P, YUV444P), #ifdef VA_FOURCC_XYUV MAP(XYUV, VUYX), #endif #ifdef VA_FOURCC_Y410 MAP(Y410, XV30), #endif #ifdef VA_FOURCC_Y412 MAP(Y412, XV36), #endif // 4:2:0 10-bit #ifdef VA_FOURCC_P010 MAP(P010, P010), #endif #ifdef VA_FOURCC_P012 MAP(P012, P012), #endif #ifdef VA_FOURCC_I010 MAP(I010, YUV420P10), #endif #undef MAP }; static int vaapi_decode_find_best_format(AVCodecContext *avctx, AVHWDeviceContext *device, VAConfigID config_id, AVHWFramesContext *frames) { AVVAAPIDeviceContext *hwctx = device->hwctx; VAStatus vas; VASurfaceAttrib *attr; enum AVPixelFormat source_format, best_format, format; uint32_t best_fourcc, fourcc; int i, j, nb_attr; source_format = avctx->sw_pix_fmt; av_assert0(source_format != AV_PIX_FMT_NONE); vas = vaQuerySurfaceAttributes(hwctx->display, config_id, NULL, &nb_attr); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to query surface attributes: " "%d (%s).\n", vas, vaErrorStr(vas)); return AVERROR(ENOSYS); } attr = av_malloc_array(nb_attr, sizeof(*attr)); if (!attr) return AVERROR(ENOMEM); vas = vaQuerySurfaceAttributes(hwctx->display, config_id, attr, &nb_attr); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to query surface attributes: " "%d (%s).\n", vas, vaErrorStr(vas)); av_freep(&attr); return AVERROR(ENOSYS); } best_format = AV_PIX_FMT_NONE; for (i = 0; i < nb_attr; i++) { if (attr[i].type != VASurfaceAttribPixelFormat) continue; fourcc = attr[i].value.value.i; for (j = 0; j < FF_ARRAY_ELEMS(vaapi_format_map); j++) { if (fourcc == vaapi_format_map[j].fourcc) break; } if (j >= FF_ARRAY_ELEMS(vaapi_format_map)) { av_log(avctx, AV_LOG_DEBUG, "Ignoring unknown format %#x.\n", fourcc); continue; } format = vaapi_format_map[j].pix_fmt; av_log(avctx, AV_LOG_DEBUG, "Considering format %#x -> %s.\n", fourcc, av_get_pix_fmt_name(format)); best_format = av_find_best_pix_fmt_of_2(format, best_format, source_format, 0, NULL); if (format == best_format) best_fourcc = fourcc; } av_freep(&attr); if (best_format == AV_PIX_FMT_NONE) { av_log(avctx, AV_LOG_ERROR, "No usable formats for decoding!\n"); return AVERROR(EINVAL); } av_log(avctx, AV_LOG_DEBUG, "Picked %s (%#x) as best match for %s.\n", av_get_pix_fmt_name(best_format), best_fourcc, av_get_pix_fmt_name(source_format)); frames->sw_format = best_format; if (avctx->internal->hwaccel_priv_data) { VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data; AVVAAPIFramesContext *avfc = frames->hwctx; ctx->pixel_format_attribute = (VASurfaceAttrib) { .type = VASurfaceAttribPixelFormat, .flags = VA_SURFACE_ATTRIB_SETTABLE, .value.type = VAGenericValueTypeInteger, .value.value.i = best_fourcc, }; avfc->attributes = &ctx->pixel_format_attribute; avfc->nb_attributes = 1; } return 0; } static const struct { enum AVCodecID codec_id; int codec_profile; VAProfile va_profile; VAProfile (*profile_parser)(AVCodecContext *avctx); } vaapi_profile_map[] = { #define MAP(c, p, v, ...) { AV_CODEC_ID_ ## c, AV_PROFILE_ ## p, VAProfile ## v, __VA_ARGS__ } MAP(MPEG2VIDEO, MPEG2_SIMPLE, MPEG2Simple ), MAP(MPEG2VIDEO, MPEG2_MAIN, MPEG2Main ), MAP(H263, UNKNOWN, H263Baseline), MAP(MPEG4, MPEG4_SIMPLE, MPEG4Simple ), MAP(MPEG4, MPEG4_ADVANCED_SIMPLE, MPEG4AdvancedSimple), MAP(MPEG4, MPEG4_MAIN, MPEG4Main ), #if VA_CHECK_VERSION(1, 18, 0) MAP(H264, H264_HIGH_10_INTRA, H264High10 ), MAP(H264, H264_HIGH_10, H264High10 ), #endif MAP(H264, H264_CONSTRAINED_BASELINE, H264ConstrainedBaseline), MAP(H264, H264_MAIN, H264Main ), MAP(H264, H264_HIGH, H264High ), #if VA_CHECK_VERSION(0, 37, 0) MAP(HEVC, HEVC_MAIN, HEVCMain ), MAP(HEVC, HEVC_MAIN_10, HEVCMain10 ), MAP(HEVC, HEVC_MAIN_STILL_PICTURE, HEVCMain ), #endif #if VA_CHECK_VERSION(1, 2, 0) && CONFIG_HEVC_VAAPI_HWACCEL MAP(HEVC, HEVC_REXT, None, ff_vaapi_parse_hevc_rext_scc_profile ), MAP(HEVC, HEVC_SCC, None, ff_vaapi_parse_hevc_rext_scc_profile ), #endif MAP(MJPEG, MJPEG_HUFFMAN_BASELINE_DCT, JPEGBaseline), MAP(WMV3, VC1_SIMPLE, VC1Simple ), MAP(WMV3, VC1_MAIN, VC1Main ), MAP(WMV3, VC1_COMPLEX, VC1Advanced ), MAP(WMV3, VC1_ADVANCED, VC1Advanced ), MAP(VC1, VC1_SIMPLE, VC1Simple ), MAP(VC1, VC1_MAIN, VC1Main ), MAP(VC1, VC1_COMPLEX, VC1Advanced ), MAP(VC1, VC1_ADVANCED, VC1Advanced ), MAP(VP8, UNKNOWN, VP8Version0_3 ), #if VA_CHECK_VERSION(0, 38, 0) MAP(VP9, VP9_0, VP9Profile0 ), #endif #if VA_CHECK_VERSION(0, 39, 0) MAP(VP9, VP9_1, VP9Profile1 ), MAP(VP9, VP9_2, VP9Profile2 ), MAP(VP9, VP9_3, VP9Profile3 ), #endif #if VA_CHECK_VERSION(1, 8, 0) MAP(AV1, AV1_MAIN, AV1Profile0), MAP(AV1, AV1_HIGH, AV1Profile1), #endif #undef MAP }; /* * Set *va_config and the frames_ref fields from the current codec parameters * in avctx. */ static int vaapi_decode_make_config(AVCodecContext *avctx, AVBufferRef *device_ref, VAConfigID *va_config, AVBufferRef *frames_ref) { AVVAAPIHWConfig *hwconfig = NULL; AVHWFramesConstraints *constraints = NULL; VAStatus vas; int err, i, j; const AVCodecDescriptor *codec_desc; VAProfile *profile_list = NULL, matched_va_profile, va_profile; int profile_count, exact_match, matched_ff_profile, codec_profile; AVHWDeviceContext *device = (AVHWDeviceContext*)device_ref->data; AVVAAPIDeviceContext *hwctx = device->hwctx; codec_desc = avcodec_descriptor_get(avctx->codec_id); if (!codec_desc) { err = AVERROR(EINVAL); goto fail; } profile_count = vaMaxNumProfiles(hwctx->display); profile_list = av_malloc_array(profile_count, sizeof(VAProfile)); if (!profile_list) { err = AVERROR(ENOMEM); goto fail; } vas = vaQueryConfigProfiles(hwctx->display, profile_list, &profile_count); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to query profiles: " "%d (%s).\n", vas, vaErrorStr(vas)); err = AVERROR(ENOSYS); goto fail; } matched_va_profile = VAProfileNone; exact_match = 0; for (i = 0; i < FF_ARRAY_ELEMS(vaapi_profile_map); i++) { int profile_match = 0; if (avctx->codec_id != vaapi_profile_map[i].codec_id) continue; if (avctx->profile == vaapi_profile_map[i].codec_profile || vaapi_profile_map[i].codec_profile == AV_PROFILE_UNKNOWN) profile_match = 1; va_profile = vaapi_profile_map[i].profile_parser ? vaapi_profile_map[i].profile_parser(avctx) : vaapi_profile_map[i].va_profile; codec_profile = vaapi_profile_map[i].codec_profile; for (j = 0; j < profile_count; j++) { if (va_profile == profile_list[j]) { exact_match = profile_match; break; } } if (j < profile_count) { matched_va_profile = va_profile; matched_ff_profile = codec_profile; if (exact_match) break; } } av_freep(&profile_list); if (matched_va_profile == VAProfileNone) { av_log(avctx, AV_LOG_ERROR, "No support for codec %s " "profile %d.\n", codec_desc->name, avctx->profile); err = AVERROR(ENOSYS); goto fail; } if (!exact_match) { if (avctx->hwaccel_flags & AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH) { av_log(avctx, AV_LOG_VERBOSE, "Codec %s profile %d not " "supported for hardware decode.\n", codec_desc->name, avctx->profile); av_log(avctx, AV_LOG_WARNING, "Using possibly-" "incompatible profile %d instead.\n", matched_ff_profile); } else { av_log(avctx, AV_LOG_VERBOSE, "Codec %s profile %d not " "supported for hardware decode.\n", codec_desc->name, avctx->profile); err = AVERROR(EINVAL); goto fail; } } vas = vaCreateConfig(hwctx->display, matched_va_profile, VAEntrypointVLD, NULL, 0, va_config); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to create decode " "configuration: %d (%s).\n", vas, vaErrorStr(vas)); err = AVERROR(EIO); goto fail; } hwconfig = av_hwdevice_hwconfig_alloc(device_ref); if (!hwconfig) { err = AVERROR(ENOMEM); goto fail; } hwconfig->config_id = *va_config; constraints = av_hwdevice_get_hwframe_constraints(device_ref, hwconfig); if (!constraints) { err = AVERROR(ENOMEM); goto fail; } if (avctx->coded_width < constraints->min_width || avctx->coded_height < constraints->min_height || avctx->coded_width > constraints->max_width || avctx->coded_height > constraints->max_height) { av_log(avctx, AV_LOG_ERROR, "Hardware does not support image " "size %dx%d (constraints: width %d-%d height %d-%d).\n", avctx->coded_width, avctx->coded_height, constraints->min_width, constraints->max_width, constraints->min_height, constraints->max_height); err = AVERROR(EINVAL); goto fail; } if (!constraints->valid_sw_formats || constraints->valid_sw_formats[0] == AV_PIX_FMT_NONE) { av_log(avctx, AV_LOG_ERROR, "Hardware does not offer any " "usable surface formats.\n"); err = AVERROR(EINVAL); goto fail; } if (frames_ref) { AVHWFramesContext *frames = (AVHWFramesContext *)frames_ref->data; frames->format = AV_PIX_FMT_VAAPI; frames->width = avctx->coded_width; frames->height = avctx->coded_height; err = vaapi_decode_find_best_format(avctx, device, *va_config, frames); if (err < 0) goto fail; if (CONFIG_VAAPI_1) frames->initial_pool_size = 0; else { frames->initial_pool_size = 1; // Add per-codec number of surfaces used for storing reference frames. switch (avctx->codec_id) { case AV_CODEC_ID_H264: case AV_CODEC_ID_HEVC: case AV_CODEC_ID_AV1: frames->initial_pool_size += 16; break; case AV_CODEC_ID_VP9: frames->initial_pool_size += 8; break; case AV_CODEC_ID_VP8: frames->initial_pool_size += 3; break; default: frames->initial_pool_size += 2; } } } av_hwframe_constraints_free(&constraints); av_freep(&hwconfig); return 0; fail: av_hwframe_constraints_free(&constraints); av_freep(&hwconfig); if (*va_config != VA_INVALID_ID) { vaDestroyConfig(hwctx->display, *va_config); *va_config = VA_INVALID_ID; } av_freep(&profile_list); return err; } int ff_vaapi_common_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx) { AVHWFramesContext *hw_frames = (AVHWFramesContext *)hw_frames_ctx->data; AVHWDeviceContext *device_ctx = hw_frames->device_ctx; AVVAAPIDeviceContext *hwctx; VAConfigID va_config = VA_INVALID_ID; int err; if (device_ctx->type != AV_HWDEVICE_TYPE_VAAPI) return AVERROR(EINVAL); hwctx = device_ctx->hwctx; err = vaapi_decode_make_config(avctx, hw_frames->device_ref, &va_config, hw_frames_ctx); if (err) return err; if (va_config != VA_INVALID_ID) vaDestroyConfig(hwctx->display, va_config); return 0; } int ff_vaapi_decode_init(AVCodecContext *avctx) { VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data; VAStatus vas; int err; ctx->va_config = VA_INVALID_ID; ctx->va_context = VA_INVALID_ID; err = ff_decode_get_hw_frames_ctx(avctx, AV_HWDEVICE_TYPE_VAAPI); if (err < 0) goto fail; ctx->frames = (AVHWFramesContext*)avctx->hw_frames_ctx->data; ctx->hwfc = ctx->frames->hwctx; ctx->device = ctx->frames->device_ctx; ctx->hwctx = ctx->device->hwctx; err = vaapi_decode_make_config(avctx, ctx->frames->device_ref, &ctx->va_config, NULL); if (err) goto fail; vas = vaCreateContext(ctx->hwctx->display, ctx->va_config, avctx->coded_width, avctx->coded_height, VA_PROGRESSIVE, ctx->hwfc->surface_ids, ctx->hwfc->nb_surfaces, &ctx->va_context); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to create decode " "context: %d (%s).\n", vas, vaErrorStr(vas)); err = AVERROR(EIO); goto fail; } av_log(avctx, AV_LOG_DEBUG, "Decode context initialised: " "%#x/%#x.\n", ctx->va_config, ctx->va_context); return 0; fail: ff_vaapi_decode_uninit(avctx); return err; } int ff_vaapi_decode_uninit(AVCodecContext *avctx) { VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data; VAStatus vas; if (ctx->va_context != VA_INVALID_ID) { vas = vaDestroyContext(ctx->hwctx->display, ctx->va_context); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to destroy decode " "context %#x: %d (%s).\n", ctx->va_context, vas, vaErrorStr(vas)); } } if (ctx->va_config != VA_INVALID_ID) { vas = vaDestroyConfig(ctx->hwctx->display, ctx->va_config); if (vas != VA_STATUS_SUCCESS) { av_log(avctx, AV_LOG_ERROR, "Failed to destroy decode " "configuration %#x: %d (%s).\n", ctx->va_config, vas, vaErrorStr(vas)); } } return 0; }