diff options
Diffstat (limited to 'video/decode/hw_vdpau.c')
-rw-r--r-- | video/decode/hw_vdpau.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/video/decode/hw_vdpau.c b/video/decode/hw_vdpau.c new file mode 100644 index 0000000000..a6b6210804 --- /dev/null +++ b/video/decode/hw_vdpau.c @@ -0,0 +1,189 @@ +/* + * This file is part of mpv. + * + * mpv 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. + * + * mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <libavcodec/avcodec.h> +#include <libavcodec/vdpau.h> +#include <libavutil/common.h> + +#include "lavc.h" +#include "common/common.h" +#include "video/mp_image_pool.h" +#include "video/vdpau.h" +#include "video/hwdec.h" + +struct priv { + struct mp_log *log; + struct mp_vdpau_ctx *mpvdp; + uint64_t preemption_counter; + // vdpau-copy + Display *display; + struct mp_image_pool *sw_pool; +}; + +static int init_decoder(struct lavc_ctx *ctx, int w, int h) +{ + struct priv *p = ctx->hwdec_priv; + + // During preemption, pretend everything is ok. + if (mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter) < 0) + return 0; + + return av_vdpau_bind_context(ctx->avctx, p->mpvdp->vdp_device, + p->mpvdp->get_proc_address, + AV_HWACCEL_FLAG_IGNORE_LEVEL | + AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH); +} + +static struct mp_image *allocate_image(struct lavc_ctx *ctx, int w, int h) +{ + struct priv *p = ctx->hwdec_priv; + + // In case of preemption, reinit the decoder. Setting hwdec_request_reinit + // will cause init_decoder() to be called again. + if (mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter) == 0) + ctx->hwdec_request_reinit = true; + + VdpChromaType chroma = 0; + uint32_t s_w = w, s_h = h; + if (av_vdpau_get_surface_parameters(ctx->avctx, &chroma, &s_w, &s_h) < 0) + return NULL; + + return mp_vdpau_get_video_surface(p->mpvdp, chroma, s_w, s_h); +} + +static struct mp_image *update_format(struct lavc_ctx *ctx, struct mp_image *img) +{ + VdpChromaType chroma = 0; + uint32_t s_w, s_h; + if (av_vdpau_get_surface_parameters(ctx->avctx, &chroma, &s_w, &s_h) >= 0) { + if (chroma == VDP_CHROMA_TYPE_420) + img->params.hw_subfmt = IMGFMT_NV12; + } + return img; +} + +static void uninit(struct lavc_ctx *ctx) +{ + struct priv *p = ctx->hwdec_priv; + + if (p->display) { + // for copy path: we own this stuff + mp_vdpau_destroy(p->mpvdp); + XCloseDisplay(p->display); + } + + TA_FREEP(&ctx->hwdec_priv); + + if (ctx->avctx) + av_freep(&ctx->avctx->hwaccel_context); +} + +static int init(struct lavc_ctx *ctx) +{ + struct priv *p = talloc_ptrtype(NULL, p); + *p = (struct priv) { + .log = mp_log_new(p, ctx->log, "vdpau"), + .mpvdp = hwdec_devices_get(ctx->hwdec_devs, HWDEC_VDPAU)->ctx, + }; + ctx->hwdec_priv = p; + + mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter); + return 0; +} + +static int probe(struct lavc_ctx *ctx, struct vd_lavc_hwdec *hwdec, + const char *codec) +{ + if (!hwdec_devices_load(ctx->hwdec_devs, HWDEC_VDPAU)) + return HWDEC_ERR_NO_CTX; + return 0; +} + +static int init_copy(struct lavc_ctx *ctx) +{ + struct priv *p = talloc_ptrtype(NULL, p); + *p = (struct priv) { + .log = mp_log_new(p, ctx->log, "vdpau"), + }; + + p->display = XOpenDisplay(NULL); + if (!p->display) + goto error; + + p->mpvdp = mp_vdpau_create_device_x11(p->log, p->display, true); + if (!p->mpvdp) + goto error; + + p->sw_pool = talloc_steal(p, mp_image_pool_new(17)); + + ctx->hwdec_priv = p; + + mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter); + return 0; + +error: + if (p->display) + XCloseDisplay(p->display); + talloc_free(p); + return -1; +} + +static int probe_copy(struct lavc_ctx *ctx, struct vd_lavc_hwdec *hwdec, + const char *codec) +{ + assert(!ctx->hwdec_priv); + + int r = HWDEC_ERR_NO_CTX; + if (init_copy(ctx) >=0 ) { + struct priv *p = ctx->hwdec_priv; + r = mp_vdpau_guess_if_emulated(p->mpvdp) ? HWDEC_ERR_EMULATED : 0; + uninit(ctx); + } + return r; +} + +static struct mp_image *copy_image(struct lavc_ctx *ctx, struct mp_image *img) +{ + struct priv *p = ctx->hwdec_priv; + struct mp_hwdec_ctx *hwctx = &p->mpvdp->hwctx; + struct mp_image *out = hwctx->download_image(hwctx, img, p->sw_pool); + talloc_free(img); + return out; +} + +const struct vd_lavc_hwdec mp_vd_lavc_vdpau = { + .type = HWDEC_VDPAU, + .image_format = IMGFMT_VDPAU, + .probe = probe, + .init = init, + .uninit = uninit, + .init_decoder = init_decoder, + .allocate_image = allocate_image, + .process_image = update_format, +}; + +const struct vd_lavc_hwdec mp_vd_lavc_vdpau_copy = { + .type = HWDEC_VDPAU_COPY, + .copying = true, + .image_format = IMGFMT_VDPAU, + .probe = probe_copy, + .init = init_copy, + .uninit = uninit, + .init_decoder = init_decoder, + .allocate_image = allocate_image, + .process_image = copy_image, +}; |