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mpv/video/out/vo_vaapi.c
wm4 46fff8d31a video: refactor how VO exports hwdec device handles 
The main change is with video/hwdec.h. mp_hwdec_info is made opaque (and
renamed to mp_hwdec_devices). Its accessors are mainly thread-safe (or
documented where not), which makes the whole thing saner and cleaner. In
particular, thread-safety rules become less subtle and more obvious.

The new internal API makes it easier to support multiple OpenGL interop
backends. (Although this is not done yet, and it's not clear whether it
ever will.)

This also removes all the API-specific fields from mp_hwdec_ctx and
replaces them with a "ctx" field. For d3d in particular, we drop the
mp_d3d_ctx struct completely, and pass the interfaces directly.

Remove the emulation checks from vaapi.c and vdpau.c; they are
pointless, and the checks that matter are done on the VO layer.

The d3d hardware decoders might slightly change behavior: dxva2-copy
will not use the VO device anymore if the VO supports proper interop.
This pretty much assumes that any in such cases the VO will not use any
form of exclusive mode, which makes using the VO device in copy mode
unnecessary.

This is a big refactor. Some things may be untested and could be broken.
2016-05-09 20:03:22 +02:00

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/*
* VA API output module
*
* Copyright (C) 2008-2009 Splitted-Desktop Systems
* Gwenole Beauchesne <gbeauchesne@splitted-desktop.com>
*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <stdarg.h>
#include <limits.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <va/va_x11.h>
#include "config.h"
#include "common/msg.h"
#include "video/out/vo.h"
#include "video/mp_image_pool.h"
#include "sub/osd.h"
#include "sub/img_convert.h"
#include "x11_common.h"
#include "video/mp_image.h"
#include "video/vaapi.h"
#include "video/hwdec.h"
struct vaapi_osd_image {
int w, h;
VAImage image;
VASubpictureID subpic_id;
bool is_used;
};
struct vaapi_subpic {
VASubpictureID id;
int src_x, src_y, src_w, src_h;
int dst_x, dst_y, dst_w, dst_h;
};
struct vaapi_osd_part {
bool active;
int change_id;
struct vaapi_osd_image image;
struct vaapi_subpic subpic;
struct osd_conv_cache *conv_cache;
};
#define MAX_OUTPUT_SURFACES 2
struct priv {
struct mp_log *log;
struct vo *vo;
VADisplay display;
struct mp_vaapi_ctx *mpvaapi;
struct mp_image_params image_params;
struct mp_rect src_rect;
struct mp_rect dst_rect;
struct mp_osd_res screen_osd_res;
struct mp_image *output_surfaces[MAX_OUTPUT_SURFACES];
struct mp_image *swdec_surfaces[MAX_OUTPUT_SURFACES];
int output_surface;
int visible_surface;
int scaling;
int force_scaled_osd;
VAImageFormat osd_format; // corresponds to OSD_VA_FORMAT
struct vaapi_osd_part osd_parts[MAX_OSD_PARTS];
bool osd_screen;
struct mp_image_pool *pool;
struct mp_image *black_surface;
VAImageFormat *va_subpic_formats;
unsigned int *va_subpic_flags;
int va_num_subpic_formats;
VADisplayAttribute *va_display_attrs;
int *mp_display_attr;
int va_num_display_attrs;
};
#define OSD_VA_FORMAT VA_FOURCC_BGRA
static const bool osd_formats[SUBBITMAP_COUNT] = {
// Actually BGRA, but only on little endian.
// This will break on big endian, I think.
[SUBBITMAP_RGBA] = true,
};
static void draw_osd(struct vo *vo);
static void flush_output_surfaces(struct priv *p)
{
for (int n = 0; n < MAX_OUTPUT_SURFACES; n++)
mp_image_unrefp(&p->output_surfaces[n]);
p->output_surface = 0;
p->visible_surface = 0;
}
// See flush_surfaces() remarks - the same applies.
static void free_video_specific(struct priv *p)
{
flush_output_surfaces(p);
mp_image_unrefp(&p->black_surface);
for (int n = 0; n < MAX_OUTPUT_SURFACES; n++)
mp_image_unrefp(&p->swdec_surfaces[n]);
if (p->pool)
mp_image_pool_clear(p->pool);
}
static bool alloc_swdec_surfaces(struct priv *p, int w, int h, int imgfmt)
{
free_video_specific(p);
for (int i = 0; i < MAX_OUTPUT_SURFACES; i++) {
p->swdec_surfaces[i] = mp_image_pool_get(p->pool, IMGFMT_VAAPI, w, h);
if (va_surface_alloc_imgfmt(p->swdec_surfaces[i], imgfmt) < 0)
return false;
}
return true;
}
static void resize(struct priv *p)
{
vo_get_src_dst_rects(p->vo, &p->src_rect, &p->dst_rect, &p->screen_osd_res);
// It's not clear whether this is needed; maybe not.
//vo_x11_clearwindow(p->vo, p->vo->x11->window);
p->vo->want_redraw = true;
}
static int reconfig(struct vo *vo, struct mp_image_params *params)
{
struct priv *p = vo->priv;
free_video_specific(p);
vo_x11_config_vo_window(vo);
if (params->imgfmt != IMGFMT_VAAPI) {
if (!alloc_swdec_surfaces(p, params->w, params->h, params->imgfmt))
return -1;
}
p->image_params = *params;
resize(p);
return 0;
}
static int query_format(struct vo *vo, int imgfmt)
{
struct priv *p = vo->priv;
if (imgfmt == IMGFMT_VAAPI || va_image_format_from_imgfmt(p->mpvaapi, imgfmt))
return 1;
return 0;
}
static bool render_to_screen(struct priv *p, struct mp_image *mpi)
{
VAStatus status;
VASurfaceID surface = va_surface_id(mpi);
if (surface == VA_INVALID_ID) {
if (!p->black_surface) {
int w = p->image_params.w, h = p->image_params.h;
// 4:2:0 should work everywhere
int fmt = IMGFMT_420P;
p->black_surface = mp_image_pool_get(p->pool, IMGFMT_VAAPI, w, h);
if (p->black_surface) {
struct mp_image *img = mp_image_alloc(fmt, w, h);
if (img) {
mp_image_clear(img, 0, 0, w, h);
if (va_surface_upload(p->black_surface, img) < 0)
mp_image_unrefp(&p->black_surface);
talloc_free(img);
}
}
}
surface = va_surface_id(p->black_surface);
}
if (surface == VA_INVALID_ID)
return false;
va_lock(p->mpvaapi);
for (int n = 0; n < MAX_OSD_PARTS; n++) {
struct vaapi_osd_part *part = &p->osd_parts[n];
if (part->active) {
struct vaapi_subpic *sp = &part->subpic;
int flags = 0;
if (p->osd_screen)
flags |= VA_SUBPICTURE_DESTINATION_IS_SCREEN_COORD;
status = vaAssociateSubpicture(p->display,
sp->id, &surface, 1,
sp->src_x, sp->src_y,
sp->src_w, sp->src_h,
sp->dst_x, sp->dst_y,
sp->dst_w, sp->dst_h,
flags);
CHECK_VA_STATUS(p, "vaAssociateSubpicture()");
}
}
int flags = va_get_colorspace_flag(p->image_params.colorspace) |
p->scaling | VA_FRAME_PICTURE;
status = vaPutSurface(p->display,
surface,
p->vo->x11->window,
p->src_rect.x0,
p->src_rect.y0,
p->src_rect.x1 - p->src_rect.x0,
p->src_rect.y1 - p->src_rect.y0,
p->dst_rect.x0,
p->dst_rect.y0,
p->dst_rect.x1 - p->dst_rect.x0,
p->dst_rect.y1 - p->dst_rect.y0,
NULL, 0,
flags);
CHECK_VA_STATUS(p, "vaPutSurface()");
for (int n = 0; n < MAX_OSD_PARTS; n++) {
struct vaapi_osd_part *part = &p->osd_parts[n];
if (part->active) {
struct vaapi_subpic *sp = &part->subpic;
status = vaDeassociateSubpicture(p->display, sp->id,
&surface, 1);
CHECK_VA_STATUS(p, "vaDeassociateSubpicture()");
}
}
va_unlock(p->mpvaapi);
return true;
}
static void flip_page(struct vo *vo)
{
struct priv *p = vo->priv;
p->visible_surface = p->output_surface;
render_to_screen(p, p->output_surfaces[p->output_surface]);
p->output_surface = (p->output_surface + 1) % MAX_OUTPUT_SURFACES;
}
static void draw_image(struct vo *vo, struct mp_image *mpi)
{
struct priv *p = vo->priv;
if (mpi->imgfmt != IMGFMT_VAAPI) {
struct mp_image *dst = p->swdec_surfaces[p->output_surface];
if (!dst || va_surface_upload(dst, mpi) < 0) {
MP_WARN(vo, "Could not upload surface.\n");
talloc_free(mpi);
return;
}
mp_image_copy_attributes(dst, mpi);
talloc_free(mpi);
mpi = mp_image_new_ref(dst);
}
talloc_free(p->output_surfaces[p->output_surface]);
p->output_surfaces[p->output_surface] = mpi;
draw_osd(vo);
}
static void free_subpicture(struct priv *p, struct vaapi_osd_image *img)
{
if (img->image.image_id != VA_INVALID_ID)
vaDestroyImage(p->display, img->image.image_id);
if (img->subpic_id != VA_INVALID_ID)
vaDestroySubpicture(p->display, img->subpic_id);
img->image.image_id = VA_INVALID_ID;
img->subpic_id = VA_INVALID_ID;
}
static int new_subpicture(struct priv *p, int w, int h,
struct vaapi_osd_image *out)
{
VAStatus status;
free_subpicture(p, out);
struct vaapi_osd_image m = {
.image = {.image_id = VA_INVALID_ID, .buf = VA_INVALID_ID},
.subpic_id = VA_INVALID_ID,
.w = w,
.h = h,
};
status = vaCreateImage(p->display, &p->osd_format, w, h, &m.image);
if (!CHECK_VA_STATUS(p, "vaCreateImage()"))
goto error;
status = vaCreateSubpicture(p->display, m.image.image_id, &m.subpic_id);
if (!CHECK_VA_STATUS(p, "vaCreateSubpicture()"))
goto error;
*out = m;
return 0;
error:
free_subpicture(p, &m);
MP_ERR(p, "failed to allocate OSD sub-picture of size %dx%d.\n", w, h);
return -1;
}
static void draw_osd_cb(void *pctx, struct sub_bitmaps *imgs)
{
struct priv *p = pctx;
struct vaapi_osd_part *part = &p->osd_parts[imgs->render_index];
if (imgs->change_id != part->change_id) {
part->change_id = imgs->change_id;
osd_scale_rgba(part->conv_cache, imgs);
struct mp_rect bb;
if (!mp_sub_bitmaps_bb(imgs, &bb))
goto error;
// Prevent filtering artifacts on borders
int pad = 2;
int w = bb.x1 - bb.x0;
int h = bb.y1 - bb.y0;
if (part->image.w < w + pad || part->image.h < h + pad) {
int sw = MP_ALIGN_UP(w + pad, 64);
int sh = MP_ALIGN_UP(h + pad, 64);
if (new_subpicture(p, sw, sh, &part->image) < 0)
goto error;
}
struct vaapi_osd_image *img = &part->image;
struct mp_image vaimg;
if (!va_image_map(p->mpvaapi, &img->image, &vaimg))
goto error;
// Clear borders and regions uncovered by sub-bitmaps
mp_image_clear(&vaimg, 0, 0, w + pad, h + pad);
for (int n = 0; n < imgs->num_parts; n++) {
struct sub_bitmap *sub = &imgs->parts[n];
// Note: nothing guarantees that the sub-bitmaps don't overlap.
// But in all currently existing cases, they don't.
// We simply hope that this won't change, and nobody will
// ever notice our little shortcut here.
size_t dst = (sub->y - bb.y0) * vaimg.stride[0] +
(sub->x - bb.x0) * 4;
memcpy_pic(vaimg.planes[0] + dst, sub->bitmap, sub->w * 4, sub->h,
vaimg.stride[0], sub->stride);
}
if (!va_image_unmap(p->mpvaapi, &img->image))
goto error;
part->subpic = (struct vaapi_subpic) {
.id = img->subpic_id,
.src_x = 0, .src_y = 0,
.src_w = w, .src_h = h,
.dst_x = bb.x0, .dst_y = bb.y0,
.dst_w = w, .dst_h = h,
};
}
part->active = true;
error:
;
}
static void draw_osd(struct vo *vo)
{
struct priv *p = vo->priv;
struct mp_image *cur = p->output_surfaces[p->output_surface];
double pts = cur ? cur->pts : 0;
if (!p->osd_format.fourcc)
return;
va_lock(p->mpvaapi);
struct mp_osd_res vid_res = osd_res_from_image_params(vo->params);
struct mp_osd_res *res;
if (p->osd_screen) {
res = &p->screen_osd_res;
} else {
res = &vid_res;
}
for (int n = 0; n < MAX_OSD_PARTS; n++)
p->osd_parts[n].active = false;
osd_draw(vo->osd, *res, pts, 0, osd_formats, draw_osd_cb, p);
va_unlock(p->mpvaapi);
}
static int get_displayattribtype(const char *name)
{
if (!strcmp(name, "brightness"))
return VADisplayAttribBrightness;
else if (!strcmp(name, "contrast"))
return VADisplayAttribContrast;
else if (!strcmp(name, "saturation"))
return VADisplayAttribSaturation;
else if (!strcmp(name, "hue"))
return VADisplayAttribHue;
return -1;
}
static int get_display_attribute(struct priv *p, const char *name)
{
int type = get_displayattribtype(name);
for (int n = 0; n < p->va_num_display_attrs; n++) {
VADisplayAttribute *attr = &p->va_display_attrs[n];
if (attr->type == type)
return n;
}
return -1;
}
static int mp_eq_to_va(VADisplayAttribute * const attr, int mpvalue)
{
/* normalize to attribute value range */
int r = attr->max_value - attr->min_value;
if (r == 0)
return INT_MIN; // assume INT_MIN is outside allowed min/max range
return ((mpvalue + 100) * r + 100) / 200 + attr->min_value;
}
static int get_equalizer(struct priv *p, const char *name, int *value)
{
int index = get_display_attribute(p, name);
if (index < 0)
return VO_NOTIMPL;
VADisplayAttribute *attr = &p->va_display_attrs[index];
if (!(attr->flags & VA_DISPLAY_ATTRIB_GETTABLE))
return VO_NOTIMPL;
/* normalize to -100 .. 100 range */
int r = attr->max_value - attr->min_value;
if (r == 0)
return VO_NOTIMPL;
*value = ((attr->value - attr->min_value) * 200 + r / 2) / r - 100;
if (mp_eq_to_va(attr, p->mp_display_attr[index]) == attr->value)
*value = p->mp_display_attr[index];
return VO_TRUE;
}
static int set_equalizer(struct priv *p, const char *name, int value)
{
VAStatus status;
int index = get_display_attribute(p, name);
if (index < 0)
return VO_NOTIMPL;
VADisplayAttribute *attr = &p->va_display_attrs[index];
if (!(attr->flags & VA_DISPLAY_ATTRIB_SETTABLE))
return VO_NOTIMPL;
int r = mp_eq_to_va(attr, value);
if (r == INT_MIN)
return VO_NOTIMPL;
attr->value = r;
p->mp_display_attr[index] = value;
MP_VERBOSE(p, "Changing '%s' (range [%d, %d]) to %d\n", name,
attr->max_value, attr->min_value, attr->value);
va_lock(p->mpvaapi);
status = vaSetDisplayAttributes(p->display, attr, 1);
va_unlock(p->mpvaapi);
if (!CHECK_VA_STATUS(p, "vaSetDisplayAttributes()"))
return VO_FALSE;
return VO_TRUE;
}
static int control(struct vo *vo, uint32_t request, void *data)
{
struct priv *p = vo->priv;
switch (request) {
case VOCTRL_SET_EQUALIZER: {
struct voctrl_set_equalizer_args *eq = data;
return set_equalizer(p, eq->name, eq->value);
}
case VOCTRL_GET_EQUALIZER: {
struct voctrl_get_equalizer_args *eq = data;
return get_equalizer(p, eq->name, eq->valueptr);
}
case VOCTRL_REDRAW_FRAME:
p->output_surface = p->visible_surface;
draw_osd(vo);
return true;
case VOCTRL_GET_PANSCAN:
return VO_TRUE;
case VOCTRL_SET_PANSCAN:
resize(p);
return VO_TRUE;
}
int events = 0;
int r = vo_x11_control(vo, &events, request, data);
if (events & VO_EVENT_RESIZE)
resize(p);
if (events & VO_EVENT_EXPOSE)
vo->want_redraw = true;
vo_event(vo, events);
return r;
}
static void uninit(struct vo *vo)
{
struct priv *p = vo->priv;
free_video_specific(p);
talloc_free(p->pool);
for (int n = 0; n < MAX_OSD_PARTS; n++) {
struct vaapi_osd_part *part = &p->osd_parts[n];
free_subpicture(p, &part->image);
}
if (vo->hwdec_devs) {
hwdec_devices_remove(vo->hwdec_devs, &p->mpvaapi->hwctx);
hwdec_devices_destroy(vo->hwdec_devs);
}
va_destroy(p->mpvaapi);
vo_x11_uninit(vo);
}
static int preinit(struct vo *vo)
{
struct priv *p = vo->priv;
p->vo = vo;
p->log = vo->log;
VAStatus status;
if (!vo_x11_init(vo))
goto fail;
if (!vo_x11_create_vo_window(vo, NULL, "vaapi"))
goto fail;
p->display = vaGetDisplay(vo->x11->display);
if (!p->display)
goto fail;
p->mpvaapi = va_initialize(p->display, p->log, false);
if (!p->mpvaapi) {
vaTerminate(p->display);
p->display = NULL;
goto fail;
}
if (va_guess_if_emulated(p->mpvaapi)) {
MP_WARN(vo, "VA-API is most likely emulated via VDPAU.\n"
"It's better to use VDPAU directly with: --vo=vdpau\n");
}
p->pool = mp_image_pool_new(MAX_OUTPUT_SURFACES + 3);
va_pool_set_allocator(p->pool, p->mpvaapi, VA_RT_FORMAT_YUV420);
int max_subpic_formats = vaMaxNumSubpictureFormats(p->display);
p->va_subpic_formats = talloc_array(vo, VAImageFormat, max_subpic_formats);
p->va_subpic_flags = talloc_array(vo, unsigned int, max_subpic_formats);
status = vaQuerySubpictureFormats(p->display,
p->va_subpic_formats,
p->va_subpic_flags,
&p->va_num_subpic_formats);
if (!CHECK_VA_STATUS(p, "vaQuerySubpictureFormats()"))
p->va_num_subpic_formats = 0;
MP_VERBOSE(vo, "%d subpicture formats available:\n",
p->va_num_subpic_formats);
for (int i = 0; i < p->va_num_subpic_formats; i++) {
MP_VERBOSE(vo, " %s, flags 0x%x\n",
mp_tag_str(p->va_subpic_formats[i].fourcc),
p->va_subpic_flags[i]);
if (p->va_subpic_formats[i].fourcc == OSD_VA_FORMAT) {
p->osd_format = p->va_subpic_formats[i];
if (!p->force_scaled_osd) {
p->osd_screen =
p->va_subpic_flags[i] & VA_SUBPICTURE_DESTINATION_IS_SCREEN_COORD;
}
}
}
if (!p->osd_format.fourcc)
MP_ERR(vo, "OSD format not supported. Disabling OSD.\n");
for (int n = 0; n < MAX_OSD_PARTS; n++) {
struct vaapi_osd_part *part = &p->osd_parts[n];
part->image.image.image_id = VA_INVALID_ID;
part->image.subpic_id = VA_INVALID_ID;
part->conv_cache = talloc_steal(vo, osd_conv_cache_new());
}
int max_display_attrs = vaMaxNumDisplayAttributes(p->display);
p->va_display_attrs = talloc_array(vo, VADisplayAttribute, max_display_attrs);
if (p->va_display_attrs) {
status = vaQueryDisplayAttributes(p->display, p->va_display_attrs,
&p->va_num_display_attrs);
if (!CHECK_VA_STATUS(p, "vaQueryDisplayAttributes()"))
p->va_num_display_attrs = 0;
p->mp_display_attr = talloc_zero_array(vo, int, p->va_num_display_attrs);
}
vo->hwdec_devs = hwdec_devices_create();
hwdec_devices_add(vo->hwdec_devs, &p->mpvaapi->hwctx);
return 0;
fail:
uninit(vo);
return -1;
}
#define OPT_BASE_STRUCT struct priv
const struct vo_driver video_out_vaapi = {
.description = "VA API with X11",
.name = "vaapi",
.preinit = preinit,
.query_format = query_format,
.reconfig = reconfig,
.control = control,
.draw_image = draw_image,
.flip_page = flip_page,
.uninit = uninit,
.priv_size = sizeof(struct priv),
.priv_defaults = &(const struct priv) {
.scaling = VA_FILTER_SCALING_DEFAULT,
},
.options = (const struct m_option[]) {
OPT_CHOICE("scaling", scaling, 0,
({"default", VA_FILTER_SCALING_DEFAULT},
{"fast", VA_FILTER_SCALING_FAST},
{"hq", VA_FILTER_SCALING_HQ},
{"nla", VA_FILTER_SCALING_NL_ANAMORPHIC})),
OPT_FLAG("scaled-osd", force_scaled_osd, 0),
{0}
},
};
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