static int vdpau_alloc(AVCodecContext *s) { InputStream *ist = s->opaque; int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR; AVVDPAUContext *vdpau_ctx; VDPAUContext *ctx; const char *display, *vendor; VdpStatus err; int i; ctx = av_mallocz(sizeof(*ctx)); if (!ctx) return AVERROR(ENOMEM); ist->hwaccel_ctx = ctx; ist->hwaccel_uninit = vdpau_uninit; ist->hwaccel_get_buffer = vdpau_get_buffer; ist->hwaccel_retrieve_data = vdpau_retrieve_data; ctx->tmp_frame = av_frame_alloc(); if (!ctx->tmp_frame) goto fail; ctx->dpy = XOpenDisplay(ist->hwaccel_device); if (!ctx->dpy) { av_log(NULL, loglevel, "Cannot open the X11 display %s.\n", XDisplayName(ist->hwaccel_device)); goto fail; } display = XDisplayString(ctx->dpy); err = vdp_device_create_x11(ctx->dpy, XDefaultScreen(ctx->dpy), &ctx->device, &ctx->get_proc_address); if (err != VDP_STATUS_OK) { av_log(NULL, loglevel, "VDPAU device creation on X11 display %s failed.\n", display); goto fail; } #define GET_CALLBACK(id, result) \ do { \ void *tmp; \ err = ctx->get_proc_address(ctx->device, id, &tmp); \ if (err != VDP_STATUS_OK) { \ av_log(NULL, loglevel, "Error getting the " #id " callback.\n"); \ goto fail; \ } \ ctx->result = tmp; \ } while (0) GET_CALLBACK(VDP_FUNC_ID_GET_ERROR_STRING, get_error_string); GET_CALLBACK(VDP_FUNC_ID_GET_INFORMATION_STRING, get_information_string); GET_CALLBACK(VDP_FUNC_ID_DEVICE_DESTROY, device_destroy); if (vdpau_api_ver == 1) { GET_CALLBACK(VDP_FUNC_ID_DECODER_CREATE, decoder_create); GET_CALLBACK(VDP_FUNC_ID_DECODER_DESTROY, decoder_destroy); GET_CALLBACK(VDP_FUNC_ID_DECODER_RENDER, decoder_render); } GET_CALLBACK(VDP_FUNC_ID_VIDEO_SURFACE_CREATE, video_surface_create); GET_CALLBACK(VDP_FUNC_ID_VIDEO_SURFACE_DESTROY, video_surface_destroy); GET_CALLBACK(VDP_FUNC_ID_VIDEO_SURFACE_GET_BITS_Y_CB_CR, video_surface_get_bits); GET_CALLBACK(VDP_FUNC_ID_VIDEO_SURFACE_GET_PARAMETERS, video_surface_get_parameters); GET_CALLBACK(VDP_FUNC_ID_VIDEO_SURFACE_QUERY_GET_PUT_BITS_Y_CB_CR_CAPABILITIES, video_surface_query); for (i = 0; i < FF_ARRAY_ELEMS(vdpau_formats); i++) { VdpBool supported; err = ctx->video_surface_query(ctx->device, VDP_CHROMA_TYPE_420, vdpau_formats[i][0], &supported); if (err != VDP_STATUS_OK) { av_log(NULL, loglevel, "Error querying VDPAU surface capabilities: %s\n", ctx->get_error_string(err)); goto fail; } if (supported) break; } if (i == FF_ARRAY_ELEMS(vdpau_formats)) { av_log(NULL, loglevel, "No supported VDPAU format for retrieving the data.\n"); return AVERROR(EINVAL); } ctx->vdpau_format = vdpau_formats[i][0]; ctx->pix_fmt = vdpau_formats[i][1]; if (vdpau_api_ver == 1) { vdpau_ctx = av_vdpau_alloc_context(); if (!vdpau_ctx) goto fail; vdpau_ctx->render = ctx->decoder_render; s->hwaccel_context = vdpau_ctx; } else if (av_vdpau_bind_context(s, ctx->device, ctx->get_proc_address, 0)) goto fail; ctx->get_information_string(&vendor); av_log(NULL, AV_LOG_VERBOSE, "Using VDPAU -- %s -- on X11 display %s, " "to decode input stream #%d:%d.\n", vendor, display, ist->file_index, ist->st->index); return 0; fail: av_log(NULL, loglevel, "VDPAU init failed for stream #%d:%d.\n", ist->file_index, ist->st->index); vdpau_uninit(s); return AVERROR(EINVAL); }