mirror of
https://github.com/mpv-player/mpv
synced 2024-08-04 14:59:58 +02:00
a0d9e15342
Lots of shit code for nothing. We probably could just use libavutil's code for all of this. But for now go with this, since it tends to prevent stupid terminal messages during probing (libavutil has no mechanism to selectively suppress errors specifically during probing). Ignores the "emulated" API flag (for avoiding vaapi/vdpau wrappers), but it doesn't matter that much for -copy anyway.
134 lines
3.3 KiB
C
134 lines
3.3 KiB
C
#include <pthread.h>
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#include <assert.h>
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#include "config.h"
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#include "hwdec.h"
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struct mp_hwdec_devices {
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pthread_mutex_t lock;
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struct mp_hwdec_ctx **hwctxs;
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int num_hwctxs;
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void (*load_api)(void *ctx);
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void *load_api_ctx;
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};
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struct mp_hwdec_devices *hwdec_devices_create(void)
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{
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struct mp_hwdec_devices *devs = talloc_zero(NULL, struct mp_hwdec_devices);
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pthread_mutex_init(&devs->lock, NULL);
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return devs;
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}
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void hwdec_devices_destroy(struct mp_hwdec_devices *devs)
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{
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if (!devs)
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return;
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assert(!devs->num_hwctxs); // must have been hwdec_devices_remove()ed
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assert(!devs->load_api); // must have been unset
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pthread_mutex_destroy(&devs->lock);
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talloc_free(devs);
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}
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struct mp_hwdec_ctx *hwdec_devices_get(struct mp_hwdec_devices *devs,
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enum hwdec_type type)
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{
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struct mp_hwdec_ctx *res = NULL;
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pthread_mutex_lock(&devs->lock);
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for (int n = 0; n < devs->num_hwctxs; n++) {
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if (devs->hwctxs[n]->type == type) {
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res = devs->hwctxs[n];
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break;
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}
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}
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pthread_mutex_unlock(&devs->lock);
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return res;
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}
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struct mp_hwdec_ctx *hwdec_devices_get_first(struct mp_hwdec_devices *devs)
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{
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pthread_mutex_lock(&devs->lock);
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struct mp_hwdec_ctx *res = devs->num_hwctxs ? devs->hwctxs[0] : NULL;
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pthread_mutex_unlock(&devs->lock);
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return res;
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}
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void hwdec_devices_add(struct mp_hwdec_devices *devs, struct mp_hwdec_ctx *ctx)
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{
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pthread_mutex_lock(&devs->lock);
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MP_TARRAY_APPEND(devs, devs->hwctxs, devs->num_hwctxs, ctx);
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pthread_mutex_unlock(&devs->lock);
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}
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void hwdec_devices_remove(struct mp_hwdec_devices *devs, struct mp_hwdec_ctx *ctx)
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{
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pthread_mutex_lock(&devs->lock);
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for (int n = 0; n < devs->num_hwctxs; n++) {
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if (devs->hwctxs[n] == ctx) {
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MP_TARRAY_REMOVE_AT(devs->hwctxs, devs->num_hwctxs, n);
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break;
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}
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}
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pthread_mutex_unlock(&devs->lock);
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}
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void hwdec_devices_set_loader(struct mp_hwdec_devices *devs,
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void (*load_api)(void *ctx), void *load_api_ctx)
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{
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devs->load_api = load_api;
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devs->load_api_ctx = load_api_ctx;
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}
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void hwdec_devices_request_all(struct mp_hwdec_devices *devs)
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{
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if (devs->load_api && !hwdec_devices_get_first(devs))
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devs->load_api(devs->load_api_ctx);
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}
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void *hwdec_devices_load(struct mp_hwdec_devices *devs, enum hwdec_type type)
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{
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if (!devs)
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return NULL;
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hwdec_devices_request_all(devs);
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struct mp_hwdec_ctx *hwctx = hwdec_devices_get(devs, type);
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return hwctx ? hwctx->ctx : NULL;
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}
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char *hwdec_devices_get_names(struct mp_hwdec_devices *devs)
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{
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char *res = NULL;
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for (int n = 0; n < devs->num_hwctxs; n++) {
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if (res)
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ta_xstrdup_append(&res, ",");
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ta_xstrdup_append(&res, devs->hwctxs[n]->driver_name);
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}
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return res;
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}
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static const struct hwcontext_fns *const hwcontext_fns[] = {
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#if HAVE_D3D_HWACCEL
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&hwcontext_fns_d3d11,
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#endif
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#if HAVE_D3D9_HWACCEL
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&hwcontext_fns_dxva2,
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#endif
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#if HAVE_VAAPI
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&hwcontext_fns_vaapi,
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#endif
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#if HAVE_VDPAU
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&hwcontext_fns_vdpau,
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#endif
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NULL,
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};
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const struct hwcontext_fns *hwdec_get_hwcontext_fns(int av_hwdevice_type)
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{
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for (int n = 0; hwcontext_fns[n]; n++) {
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if (hwcontext_fns[n]->av_hwdevice_type == av_hwdevice_type)
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return hwcontext_fns[n];
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}
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return NULL;
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}
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