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c1bcd30b09
mpv/video/out/vo_xv.c
wm4 1ad036a2ef video: get rid of swapped packed YUV 
Another legacy annoyance. The only place where packed YUV is still
important is slightly older Apple hardware or drivers, which require
it for efficient hardware decoding.
2017-06-30 18:01:29 +02:00

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/*
* X11 Xv interface
*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <stdbool.h>
#include <errno.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <libavutil/common.h>
#include "config.h"
#if HAVE_SHM
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/extensions/XShm.h>
#endif
// Note: depends on the inclusion of X11/extensions/XShm.h
#include <X11/extensions/Xv.h>
#include <X11/extensions/Xvlib.h>
#include "options/options.h"
#include "mpv_talloc.h"
#include "common/msg.h"
#include "vo.h"
#include "video/mp_image.h"
#include "x11_common.h"
#include "sub/osd.h"
#include "sub/draw_bmp.h"
#include "video/csputils.h"
#include "options/m_option.h"
#include "input/input.h"
#include "osdep/timer.h"
#define CK_METHOD_NONE 0 // no colorkey drawing
#define CK_METHOD_BACKGROUND 1 // set colorkey as window background
#define CK_METHOD_AUTOPAINT 2 // let xv draw the colorkey
#define CK_METHOD_MANUALFILL 3 // manually draw the colorkey
#define CK_SRC_USE 0 // use specified / default colorkey
#define CK_SRC_SET 1 // use and set specified / default colorkey
#define CK_SRC_CUR 2 // use current colorkey (get it from xv)
#define MAX_BUFFERS 10
struct xvctx {
struct xv_ck_info_s {
int method; // CK_METHOD_* constants
int source; // CK_SRC_* constants
} xv_ck_info;
int colorkey;
unsigned long xv_colorkey;
int xv_port;
int cfg_xv_adaptor;
int cfg_buffers;
XvAdaptorInfo *ai;
XvImageFormatValues *fo;
unsigned int formats, adaptors, xv_format;
int current_buf;
int current_ip_buf;
int num_buffers;
XvImage *xvimage[MAX_BUFFERS];
struct mp_image *original_image;
uint32_t image_width;
uint32_t image_height;
uint32_t image_format;
int cached_csp;
struct mp_rect src_rect;
struct mp_rect dst_rect;
uint32_t max_width, max_height; // zero means: not set
GC f_gc; // used to paint background
GC vo_gc; // used to paint video
int Shmem_Flag;
#if HAVE_SHM
XShmSegmentInfo Shminfo[MAX_BUFFERS];
int Shm_Warned_Slow;
#endif
};
#define MP_FOURCC(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((unsigned)(d)<<24))
#define MP_FOURCC_YV12 MP_FOURCC('Y', 'V', '1', '2')
#define MP_FOURCC_I420 MP_FOURCC('I', '4', '2', '0')
#define MP_FOURCC_IYUV MP_FOURCC('I', 'Y', 'U', 'V')
#define MP_FOURCC_UYVY MP_FOURCC('U', 'Y', 'V', 'Y')
struct fmt_entry {
int imgfmt;
int fourcc;
};
static const struct fmt_entry fmt_table[] = {
{IMGFMT_420P, MP_FOURCC_YV12},
{IMGFMT_420P, MP_FOURCC_I420},
{IMGFMT_UYVY, MP_FOURCC_UYVY},
{0}
};
static bool allocate_xvimage(struct vo *, int);
static void deallocate_xvimage(struct vo *vo, int foo);
static struct mp_image get_xv_buffer(struct vo *vo, int buf_index);
static int find_xv_format(int imgfmt)
{
for (int n = 0; fmt_table[n].imgfmt; n++) {
if (fmt_table[n].imgfmt == imgfmt)
return fmt_table[n].fourcc;
}
return 0;
}
static int xv_find_atom(struct vo *vo, uint32_t xv_port, const char *name,
bool get, int *min, int *max)
{
Atom atom = None;
int howmany = 0;
XvAttribute *attributes = XvQueryPortAttributes(vo->x11->display, xv_port,
&howmany);
for (int i = 0; i < howmany && attributes; i++) {
int flag = get ? XvGettable : XvSettable;
if (attributes[i].flags & flag) {
atom = XInternAtom(vo->x11->display, attributes[i].name, True);
*min = attributes[i].min_value;
*max = attributes[i].max_value;
/* since we have SET_DEFAULTS first in our list, we can check if it's available
then trigger it if it's ok so that the other values are at default upon query */
if (atom != None) {
if (!strcmp(attributes[i].name, "XV_BRIGHTNESS") &&
(!strcmp(name, "brightness")))
break;
else if (!strcmp(attributes[i].name, "XV_CONTRAST") &&
(!strcmp(name, "contrast")))
break;
else if (!strcmp(attributes[i].name, "XV_SATURATION") &&
(!strcmp(name, "saturation")))
break;
else if (!strcmp(attributes[i].name, "XV_HUE") &&
(!strcmp(name, "hue")))
break;
if (!strcmp(attributes[i].name, "XV_RED_INTENSITY") &&
(!strcmp(name, "red_intensity")))
break;
else if (!strcmp(attributes[i].name, "XV_GREEN_INTENSITY")
&& (!strcmp(name, "green_intensity")))
break;
else if (!strcmp(attributes[i].name, "XV_BLUE_INTENSITY")
&& (!strcmp(name, "blue_intensity")))
break;
else if ((!strcmp(attributes[i].name, "XV_ITURBT_709") //NVIDIA
|| !strcmp(attributes[i].name, "XV_COLORSPACE")) //ATI
&& (!strcmp(name, "bt_709")))
break;
atom = None;
continue;
}
}
}
XFree(attributes);
return atom;
}
static int xv_set_eq(struct vo *vo, uint32_t xv_port, const char *name,
int value)
{
MP_VERBOSE(vo, "xv_set_eq called! (%s, %d)\n", name, value);
int min, max;
int atom = xv_find_atom(vo, xv_port, name, false, &min, &max);
if (atom != None) {
// -100 -> min
// 0 -> (max+min)/2
// +100 -> max
int port_value = (value + 100) * (max - min) / 200 + min;
XvSetPortAttribute(vo->x11->display, xv_port, atom, port_value);
return VO_TRUE;
}
return VO_FALSE;
}
static int xv_get_eq(struct vo *vo, uint32_t xv_port, const char *name,
int *value)
{
int min, max;
int atom = xv_find_atom(vo, xv_port, name, true, &min, &max);
if (atom != None) {
int port_value = 0;
XvGetPortAttribute(vo->x11->display, xv_port, atom, &port_value);
*value = (port_value - min) * 200 / (max - min) - 100;
MP_VERBOSE(vo, "xv_get_eq called! (%s, %d)\n", name, *value);
return VO_TRUE;
}
return VO_FALSE;
}
static Atom xv_intern_atom_if_exists(struct vo *vo, char const *atom_name)
{
struct xvctx *ctx = vo->priv;
XvAttribute *attributes;
int attrib_count, i;
Atom xv_atom = None;
attributes = XvQueryPortAttributes(vo->x11->display, ctx->xv_port,
&attrib_count);
if (attributes != NULL) {
for (i = 0; i < attrib_count; ++i) {
if (strcmp(attributes[i].name, atom_name) == 0) {
xv_atom = XInternAtom(vo->x11->display, atom_name, False);
break;
}
}
XFree(attributes);
}
return xv_atom;
}
// Try to enable vsync for xv.
// Returns -1 if not available, 0 on failure and 1 on success.
static int xv_enable_vsync(struct vo *vo)
{
struct xvctx *ctx = vo->priv;
Atom xv_atom = xv_intern_atom_if_exists(vo, "XV_SYNC_TO_VBLANK");
if (xv_atom == None)
return -1;
return XvSetPortAttribute(vo->x11->display, ctx->xv_port, xv_atom, 1)
== Success;
}
// Get maximum supported source image dimensions.
// If querying the dimensions fails, don't change *width and *height.
static void xv_get_max_img_dim(struct vo *vo, uint32_t *width, uint32_t *height)
{
struct xvctx *ctx = vo->priv;
XvEncodingInfo *encodings;
unsigned int num_encodings, idx;
XvQueryEncodings(vo->x11->display, ctx->xv_port, &num_encodings, &encodings);
if (encodings) {
for (idx = 0; idx < num_encodings; ++idx) {
if (strcmp(encodings[idx].name, "XV_IMAGE") == 0) {
*width = encodings[idx].width;
*height = encodings[idx].height;
break;
}
}
}
MP_VERBOSE(vo, "Maximum source image dimensions: %ux%u\n", *width, *height);
XvFreeEncodingInfo(encodings);
}
static void xv_print_ck_info(struct vo *vo)
{
struct xvctx *xv = vo->priv;
switch (xv->xv_ck_info.method) {
case CK_METHOD_NONE:
MP_VERBOSE(vo, "Drawing no colorkey.\n");
return;
case CK_METHOD_AUTOPAINT:
MP_VERBOSE(vo, "Colorkey is drawn by Xv.\n");
break;
case CK_METHOD_MANUALFILL:
MP_VERBOSE(vo, "Drawing colorkey manually.\n");
break;
case CK_METHOD_BACKGROUND:
MP_VERBOSE(vo, "Colorkey is drawn as window background.\n");
break;
}
switch (xv->xv_ck_info.source) {
case CK_SRC_CUR:
MP_VERBOSE(vo, "Using colorkey from Xv (0x%06lx).\n", xv->xv_colorkey);
break;
case CK_SRC_USE:
if (xv->xv_ck_info.method == CK_METHOD_AUTOPAINT) {
MP_VERBOSE(vo, "Ignoring colorkey from mpv (0x%06lx).\n",
xv->xv_colorkey);
} else {
MP_VERBOSE(vo, "Using colorkey from mpv (0x%06lx). Use -colorkey to change.\n",
xv->xv_colorkey);
}
break;
case CK_SRC_SET:
MP_VERBOSE(vo, "Setting and using colorkey from mpv (0x%06lx)."
" Use -colorkey to change.\n", xv->xv_colorkey);
break;
}
}
/* NOTE: If vo.colorkey has bits set after the first 3 low order bytes
* we don't draw anything as this means it was forced to off. */
static int xv_init_colorkey(struct vo *vo)
{
struct xvctx *ctx = vo->priv;
Display *display = vo->x11->display;
Atom xv_atom;
int rez;
/* check if colorkeying is needed */
xv_atom = xv_intern_atom_if_exists(vo, "XV_COLORKEY");
if (xv_atom != None && ctx->xv_ck_info.method != CK_METHOD_NONE) {
if (ctx->xv_ck_info.source == CK_SRC_CUR) {
int colorkey_ret;
rez = XvGetPortAttribute(display, ctx->xv_port, xv_atom,
&colorkey_ret);
if (rez == Success)
ctx->xv_colorkey = colorkey_ret;
else {
MP_FATAL(vo, "Couldn't get colorkey! "
"Maybe the selected Xv port has no overlay.\n");
return 0; // error getting colorkey
}
} else {
ctx->xv_colorkey = ctx->colorkey;
/* check if we have to set the colorkey too */
if (ctx->xv_ck_info.source == CK_SRC_SET) {
xv_atom = XInternAtom(display, "XV_COLORKEY", False);
rez = XvSetPortAttribute(display, ctx->xv_port, xv_atom,
ctx->colorkey);
if (rez != Success) {
MP_FATAL(vo, "Couldn't set colorkey!\n");
return 0; // error setting colorkey
}
}
}
xv_atom = xv_intern_atom_if_exists(vo, "XV_AUTOPAINT_COLORKEY");
/* should we draw the colorkey ourselves or activate autopainting? */
if (ctx->xv_ck_info.method == CK_METHOD_AUTOPAINT) {
rez = !Success;
if (xv_atom != None) // autopaint is supported
rez = XvSetPortAttribute(display, ctx->xv_port, xv_atom, 1);
if (rez != Success)
ctx->xv_ck_info.method = CK_METHOD_MANUALFILL;
} else {
// disable colorkey autopainting if supported
if (xv_atom != None)
XvSetPortAttribute(display, ctx->xv_port, xv_atom, 0);
}
} else { // do no colorkey drawing at all
ctx->xv_ck_info.method = CK_METHOD_NONE;
ctx->colorkey = 0xFF000000;
}
xv_print_ck_info(vo);
return 1;
}
/* Draw the colorkey on the video window.
*
* Draws the colorkey depending on the set method ( colorkey_handling ).
*
* Also draws the black bars ( when the video doesn't fit the display in
* fullscreen ) separately, so they don't overlap with the video area. */
static void xv_draw_colorkey(struct vo *vo, const struct mp_rect *rc)
{
struct xvctx *ctx = vo->priv;
struct vo_x11_state *x11 = vo->x11;
if (ctx->xv_ck_info.method == CK_METHOD_MANUALFILL ||
ctx->xv_ck_info.method == CK_METHOD_BACKGROUND)
{
if (!ctx->vo_gc)
return;
//less tearing than XClearWindow()
XSetForeground(x11->display, ctx->vo_gc, ctx->xv_colorkey);
XFillRectangle(x11->display, x11->window, ctx->vo_gc, rc->x0, rc->y0,
rc->x1 - rc->x0, rc->y1 - rc->y0);
}
}
static void read_xv_csp(struct vo *vo)
{
struct xvctx *ctx = vo->priv;
ctx->cached_csp = 0;
int bt709_enabled;
if (xv_get_eq(vo, ctx->xv_port, "bt_709", &bt709_enabled))
ctx->cached_csp = bt709_enabled == 100 ? MP_CSP_BT_709 : MP_CSP_BT_601;
}
static void fill_rect(struct vo *vo, GC gc, int x0, int y0, int x1, int y1)
{
struct vo_x11_state *x11 = vo->x11;
x0 = MPMAX(x0, 0);
y0 = MPMAX(y0, 0);
x1 = MPMIN(x1, vo->dwidth);
y1 = MPMIN(y1, vo->dheight);
if (x11->window && gc && x1 > x0 && y1 > y0)
XFillRectangle(x11->display, x11->window, gc, x0, y0, x1 - x0, y1 - y0);
}
// Clear everything outside of rc with the background color
static void vo_x11_clear_background(struct vo *vo, const struct mp_rect *rc)
{
struct vo_x11_state *x11 = vo->x11;
struct xvctx *ctx = vo->priv;
GC gc = ctx->f_gc;
int w = vo->dwidth;
int h = vo->dheight;
fill_rect(vo, gc, 0, 0, w, rc->y0); // top
fill_rect(vo, gc, 0, rc->y1, w, h); // bottom
fill_rect(vo, gc, 0, rc->y0, rc->x0, rc->y1); // left
fill_rect(vo, gc, rc->x1, rc->y0, w, rc->y1); // right
XFlush(x11->display);
}
static void resize(struct vo *vo)
{
struct xvctx *ctx = vo->priv;
// Can't be used, because the function calculates screen-space coordinates,
// while we need video-space.
struct mp_osd_res unused;
vo_get_src_dst_rects(vo, &ctx->src_rect, &ctx->dst_rect, &unused);
vo_x11_clear_background(vo, &ctx->dst_rect);
xv_draw_colorkey(vo, &ctx->dst_rect);
read_xv_csp(vo);
mp_input_set_mouse_transform(vo->input_ctx, &ctx->dst_rect, &ctx->src_rect);
vo->want_redraw = true;
}
/*
* create and map window,
* allocate colors and (shared) memory
*/
static int reconfig(struct vo *vo, struct mp_image_params *params)
{
struct vo_x11_state *x11 = vo->x11;
struct xvctx *ctx = vo->priv;
int i;
mp_image_unrefp(&ctx->original_image);
ctx->image_height = params->h;
ctx->image_width = params->w;
ctx->image_format = params->imgfmt;
if ((ctx->max_width != 0 && ctx->max_height != 0)
&& (ctx->image_width > ctx->max_width
|| ctx->image_height > ctx->max_height)) {
MP_ERR(vo, "Source image dimensions are too high: %ux%u (maximum is %ux%u)\n",
ctx->image_width, ctx->image_height, ctx->max_width,
ctx->max_height);
return -1;
}
/* check image formats */
ctx->xv_format = 0;
for (i = 0; i < ctx->formats; i++) {
MP_VERBOSE(vo, "Xvideo image format: 0x%x (%4.4s) %s\n",
ctx->fo[i].id, (char *) &ctx->fo[i].id,
(ctx->fo[i].format == XvPacked) ? "packed" : "planar");
if (ctx->fo[i].id == find_xv_format(ctx->image_format))
ctx->xv_format = ctx->fo[i].id;
}
if (!ctx->xv_format)
return -1;
vo_x11_config_vo_window(vo);
if (!ctx->f_gc && !ctx->vo_gc) {
ctx->f_gc = XCreateGC(x11->display, x11->window, 0, 0);
ctx->vo_gc = XCreateGC(x11->display, x11->window, 0, NULL);
XSetForeground(x11->display, ctx->f_gc, 0);
}
if (ctx->xv_ck_info.method == CK_METHOD_BACKGROUND)
XSetWindowBackground(x11->display, x11->window, ctx->xv_colorkey);
MP_VERBOSE(vo, "using Xvideo port %d for hw scaling\n", ctx->xv_port);
// In case config has been called before
for (i = 0; i < ctx->num_buffers; i++)
deallocate_xvimage(vo, i);
ctx->num_buffers = ctx->cfg_buffers;
for (i = 0; i < ctx->num_buffers; i++) {
if (!allocate_xvimage(vo, i)) {
MP_FATAL(vo, "could not allocate Xv image data\n");
return -1;
}
}
ctx->current_buf = 0;
ctx->current_ip_buf = 0;
int is_709 = params->color.space == MP_CSP_BT_709;
xv_set_eq(vo, ctx->xv_port, "bt_709", is_709 * 200 - 100);
read_xv_csp(vo);
resize(vo);
return 0;
}
static bool allocate_xvimage(struct vo *vo, int foo)
{
struct xvctx *ctx = vo->priv;
struct vo_x11_state *x11 = vo->x11;
// align it for faster OSD rendering (draw_bmp.c swscale usage)
int aligned_w = FFALIGN(ctx->image_width, 32);
// round up the height to next chroma boundary too
int aligned_h = FFALIGN(ctx->image_height, 2);
#if HAVE_SHM
if (x11->display_is_local && XShmQueryExtension(x11->display)) {
ctx->Shmem_Flag = 1;
x11->ShmCompletionEvent = XShmGetEventBase(x11->display)
+ ShmCompletion;
} else {
ctx->Shmem_Flag = 0;
MP_INFO(vo, "Shared memory not supported\nReverting to normal Xv.\n");
}
if (ctx->Shmem_Flag) {
ctx->xvimage[foo] =
(XvImage *) XvShmCreateImage(x11->display, ctx->xv_port,
ctx->xv_format, NULL,
aligned_w, aligned_h,
&ctx->Shminfo[foo]);
if (!ctx->xvimage[foo])
return false;
ctx->Shminfo[foo].shmid = shmget(IPC_PRIVATE,
ctx->xvimage[foo]->data_size,
IPC_CREAT | 0777);
ctx->Shminfo[foo].shmaddr = shmat(ctx->Shminfo[foo].shmid, 0, 0);
if (ctx->Shminfo[foo].shmaddr == (void *)-1)
return false;
ctx->Shminfo[foo].readOnly = False;
ctx->xvimage[foo]->data = ctx->Shminfo[foo].shmaddr;
XShmAttach(x11->display, &ctx->Shminfo[foo]);
XSync(x11->display, False);
shmctl(ctx->Shminfo[foo].shmid, IPC_RMID, 0);
} else
#endif
{
ctx->xvimage[foo] =
(XvImage *) XvCreateImage(x11->display, ctx->xv_port,
ctx->xv_format, NULL, aligned_w,
aligned_h);
if (!ctx->xvimage[foo])
return false;
ctx->xvimage[foo]->data = av_malloc(ctx->xvimage[foo]->data_size);
if (!ctx->xvimage[foo]->data)
return false;
XSync(x11->display, False);
}
if ((ctx->xvimage[foo]->width < aligned_w) ||
(ctx->xvimage[foo]->height < aligned_h)) {
MP_ERR(vo, "Got XvImage with too small size: %ux%u (expected %ux%u)\n",
ctx->xvimage[foo]->width, ctx->xvimage[foo]->height,
aligned_w, ctx->image_height);
return false;
}
struct mp_image img = get_xv_buffer(vo, foo);
mp_image_set_size(&img, aligned_w, aligned_h);
mp_image_clear(&img, 0, 0, img.w, img.h);
return true;
}
static void deallocate_xvimage(struct vo *vo, int foo)
{
struct xvctx *ctx = vo->priv;
#if HAVE_SHM
if (ctx->Shmem_Flag) {
XShmDetach(vo->x11->display, &ctx->Shminfo[foo]);
shmdt(ctx->Shminfo[foo].shmaddr);
} else
#endif
{
av_free(ctx->xvimage[foo]->data);
}
if (ctx->xvimage[foo])
XFree(ctx->xvimage[foo]);
ctx->xvimage[foo] = NULL;
#if HAVE_SHM
ctx->Shminfo[foo] = (XShmSegmentInfo){0};
#endif
XSync(vo->x11->display, False);
return;
}
static inline void put_xvimage(struct vo *vo, XvImage *xvi)
{
struct xvctx *ctx = vo->priv;
struct vo_x11_state *x11 = vo->x11;
struct mp_rect *src = &ctx->src_rect;
struct mp_rect *dst = &ctx->dst_rect;
int dw = dst->x1 - dst->x0, dh = dst->y1 - dst->y0;
int sw = src->x1 - src->x0, sh = src->y1 - src->y0;
#if HAVE_SHM
if (ctx->Shmem_Flag) {
XvShmPutImage(x11->display, ctx->xv_port, x11->window, ctx->vo_gc, xvi,
src->x0, src->y0, sw, sh,
dst->x0, dst->y0, dw, dh,
True);
x11->ShmCompletionWaitCount++;
} else
#endif
{
XvPutImage(x11->display, ctx->xv_port, x11->window, ctx->vo_gc, xvi,
src->x0, src->y0, sw, sh,
dst->x0, dst->y0, dw, dh);
}
}
static struct mp_image get_xv_buffer(struct vo *vo, int buf_index)
{
struct xvctx *ctx = vo->priv;
XvImage *xv_image = ctx->xvimage[buf_index];
struct mp_image img = {0};
mp_image_set_size(&img, ctx->image_width, ctx->image_height);
mp_image_setfmt(&img, ctx->image_format);
bool swapuv = ctx->xv_format == MP_FOURCC_YV12;
for (int n = 0; n < img.num_planes; n++) {
int sn = n > 0 && swapuv ? (n == 1 ? 2 : 1) : n;
img.planes[n] = xv_image->data + xv_image->offsets[sn];
img.stride[n] = xv_image->pitches[sn];
}
if (vo->params) {
struct mp_image_params params = *vo->params;
if (ctx->cached_csp)
params.color.space = ctx->cached_csp;
mp_image_set_attributes(&img, &params);
}
return img;
}
static void wait_for_completion(struct vo *vo, int max_outstanding)
{
#if HAVE_SHM
struct xvctx *ctx = vo->priv;
struct vo_x11_state *x11 = vo->x11;
if (ctx->Shmem_Flag) {
while (x11->ShmCompletionWaitCount > max_outstanding) {
if (!ctx->Shm_Warned_Slow) {
MP_WARN(vo, "X11 can't keep up! Waiting"
" for XShm completion events...\n");
ctx->Shm_Warned_Slow = 1;
}
mp_sleep_us(1000);
vo_x11_check_events(vo);
}
}
#endif
}
static void flip_page(struct vo *vo)
{
struct xvctx *ctx = vo->priv;
put_xvimage(vo, ctx->xvimage[ctx->current_buf]);
/* remember the currently visible buffer */
ctx->current_buf = (ctx->current_buf + 1) % ctx->num_buffers;
if (!ctx->Shmem_Flag)
XSync(vo->x11->display, False);
}
// Note: REDRAW_FRAME can call this with NULL.
static void draw_image(struct vo *vo, mp_image_t *mpi)
{
struct xvctx *ctx = vo->priv;
wait_for_completion(vo, ctx->num_buffers - 1);
struct mp_image xv_buffer = get_xv_buffer(vo, ctx->current_buf);
if (mpi) {
mp_image_copy(&xv_buffer, mpi);
} else {
mp_image_clear(&xv_buffer, 0, 0, xv_buffer.w, xv_buffer.h);
}
struct mp_osd_res res = osd_res_from_image_params(vo->params);
osd_draw_on_image(vo->osd, res, mpi ? mpi->pts : 0, 0, &xv_buffer);
if (mpi != ctx->original_image) {
talloc_free(ctx->original_image);
ctx->original_image = mpi;
}
}
static int query_format(struct vo *vo, int format)
{
struct xvctx *ctx = vo->priv;
uint32_t i;
int fourcc = find_xv_format(format);
if (fourcc) {
for (i = 0; i < ctx->formats; i++) {
if (ctx->fo[i].id == fourcc)
return 1;
}
}
return 0;
}
static void uninit(struct vo *vo)
{
struct xvctx *ctx = vo->priv;
int i;
talloc_free(ctx->original_image);
if (ctx->ai)
XvFreeAdaptorInfo(ctx->ai);
ctx->ai = NULL;
if (ctx->fo) {
XFree(ctx->fo);
ctx->fo = NULL;
}
for (i = 0; i < ctx->num_buffers; i++)
deallocate_xvimage(vo, i);
if (ctx->f_gc != None)
XFreeGC(vo->x11->display, ctx->f_gc);
if (ctx->vo_gc != None)
XFreeGC(vo->x11->display, ctx->vo_gc);
// uninit() shouldn't get called unless initialization went past vo_init()
vo_x11_uninit(vo);
}
static int preinit(struct vo *vo)
{
XvPortID xv_p;
int busy_ports = 0;
unsigned int i;
struct xvctx *ctx = vo->priv;
int xv_adaptor = ctx->cfg_xv_adaptor;
if (!vo_x11_init(vo))
return -1;
if (!vo_x11_create_vo_window(vo, NULL, "xv"))
goto error;
struct vo_x11_state *x11 = vo->x11;
/* check for Xvideo extension */
unsigned int ver, rel, req, ev, err;
if (Success != XvQueryExtension(x11->display, &ver, &rel, &req, &ev, &err)) {
MP_ERR(vo, "Xv not supported by this X11 version/driver\n");
goto error;
}
/* check for Xvideo support */
if (Success !=
XvQueryAdaptors(x11->display, DefaultRootWindow(x11->display),
&ctx->adaptors, &ctx->ai)) {
MP_ERR(vo, "XvQueryAdaptors failed.\n");
goto error;
}
/* check adaptors */
if (ctx->xv_port) {
int port_found;
for (port_found = 0, i = 0; !port_found && i < ctx->adaptors; i++) {
if ((ctx->ai[i].type & XvInputMask)
&& (ctx->ai[i].type & XvImageMask)) {
for (xv_p = ctx->ai[i].base_id;
xv_p < ctx->ai[i].base_id + ctx->ai[i].num_ports;
++xv_p) {
if (xv_p == ctx->xv_port) {
port_found = 1;
break;
}
}
}
}
if (port_found) {
if (XvGrabPort(x11->display, ctx->xv_port, CurrentTime))
ctx->xv_port = 0;
} else {
MP_WARN(vo, "Invalid port parameter, overriding with port 0.\n");
ctx->xv_port = 0;
}
}
for (i = 0; i < ctx->adaptors && ctx->xv_port == 0; i++) {
/* check if adaptor number has been specified */
if (xv_adaptor != -1 && xv_adaptor != i)
continue;
if ((ctx->ai[i].type & XvInputMask) && (ctx->ai[i].type & XvImageMask)) {
for (xv_p = ctx->ai[i].base_id;
xv_p < ctx->ai[i].base_id + ctx->ai[i].num_ports; ++xv_p)
if (!XvGrabPort(x11->display, xv_p, CurrentTime)) {
ctx->xv_port = xv_p;
MP_VERBOSE(vo, "Using Xv Adapter #%d (%s)\n",
i, ctx->ai[i].name);
break;
} else {
MP_WARN(vo, "Could not grab port %i.\n", (int) xv_p);
++busy_ports;
}
}
}
if (!ctx->xv_port) {
if (busy_ports)
MP_ERR(vo, "Xvideo ports busy.\n");
else
MP_ERR(vo, "No Xvideo support found.\n");
goto error;
}
if (!xv_init_colorkey(vo)) {
goto error; // bail out, colorkey setup failed
}
xv_enable_vsync(vo);
xv_get_max_img_dim(vo, &ctx->max_width, &ctx->max_height);
ctx->fo = XvListImageFormats(x11->display, ctx->xv_port,
(int *) &ctx->formats);
MP_WARN(vo, "Warning: this legacy VO has bad quality and performance, "
"and will in particular result in blurry OSD and subtitles. "
"You should fix your graphics drivers, or not force the xv VO.\n");
return 0;
error:
uninit(vo); // free resources
return -1;
}
static int control(struct vo *vo, uint32_t request, void *data)
{
struct xvctx *ctx = vo->priv;
switch (request) {
case VOCTRL_SET_PANSCAN:
resize(vo);
return VO_TRUE;
case VOCTRL_SET_EQUALIZER: {
vo->want_redraw = true;
struct voctrl_set_equalizer_args *args = data;
return xv_set_eq(vo, ctx->xv_port, args->name, args->value);
}
case VOCTRL_GET_EQUALIZER: {
struct voctrl_get_equalizer_args *args = data;
return xv_get_eq(vo, ctx->xv_port, args->name, args->valueptr);
}
case VOCTRL_REDRAW_FRAME:
draw_image(vo, ctx->original_image);
return true;
}
int events = 0;
int r = vo_x11_control(vo, &events, request, data);
if (events & (VO_EVENT_EXPOSE | VO_EVENT_RESIZE))
resize(vo);
vo_event(vo, events);
return r;
}
#define OPT_BASE_STRUCT struct xvctx
const struct vo_driver video_out_xv = {
.description = "X11/Xv",
.name = "xv",
.preinit = preinit,
.query_format = query_format,
.reconfig = reconfig,
.control = control,
.draw_image = draw_image,
.flip_page = flip_page,
.wakeup = vo_x11_wakeup,
.wait_events = vo_x11_wait_events,
.uninit = uninit,
.priv_size = sizeof(struct xvctx),
.priv_defaults = &(const struct xvctx) {
.cfg_xv_adaptor = -1,
.xv_ck_info = {CK_METHOD_MANUALFILL, CK_SRC_CUR},
.colorkey = 0x0000ff00, // default colorkey is green
// (0xff000000 means that colorkey has been disabled)
.cfg_buffers = 2,
},
.options = (const struct m_option[]) {
OPT_INT("port", xv_port, M_OPT_MIN, .min = 0),
OPT_INT("adaptor", cfg_xv_adaptor, M_OPT_MIN, .min = -1),
OPT_CHOICE("ck", xv_ck_info.source, 0,
({"use", CK_SRC_USE},
{"set", CK_SRC_SET},
{"cur", CK_SRC_CUR})),
OPT_CHOICE("ck-method", xv_ck_info.method, 0,
({"none", CK_METHOD_NONE},
{"bg", CK_METHOD_BACKGROUND},
{"man", CK_METHOD_MANUALFILL},
{"auto", CK_METHOD_AUTOPAINT})),
OPT_INT("colorkey", colorkey, 0),
OPT_INTRANGE("buffers", cfg_buffers, 0, 1, MAX_BUFFERS),
OPT_REMOVED("no-colorkey", "use ck-method=none instead"),
{0}
},
.options_prefix = "xv",
};
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