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-rw-r--r--libavcodec/w32thread.c174
1 files changed, 0 insertions, 174 deletions
diff --git a/libavcodec/w32thread.c b/libavcodec/w32thread.c
deleted file mode 100644
index 023be0e663..0000000000
--- a/libavcodec/w32thread.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav 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.
- *
- * Libav 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 Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-//#define DEBUG
-
-#include "avcodec.h"
-#include "thread.h"
-
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#include <process.h>
-
-typedef struct ThreadContext{
- AVCodecContext *avctx;
- HANDLE thread;
- HANDLE work_sem;
- HANDLE job_sem;
- HANDLE done_sem;
- int (*func)(AVCodecContext *c, void *arg);
- int (*func2)(AVCodecContext *c, void *arg, int, int);
- void *arg;
- int argsize;
- int *jobnr;
- int *ret;
- int threadnr;
-}ThreadContext;
-
-
-static unsigned WINAPI attribute_align_arg thread_func(void *v){
- ThreadContext *c= v;
-
- for(;;){
- int ret, jobnr;
-//printf("thread_func %X enter wait\n", (int)v); fflush(stdout);
- WaitForSingleObject(c->work_sem, INFINITE);
- // avoid trying to access jobnr if we should quit
- if (!c->func && !c->func2)
- break;
- WaitForSingleObject(c->job_sem, INFINITE);
- jobnr = (*c->jobnr)++;
- ReleaseSemaphore(c->job_sem, 1, 0);
-//printf("thread_func %X after wait (func=%X)\n", (int)v, (int)c->func); fflush(stdout);
- if(c->func)
- ret= c->func(c->avctx, (uint8_t *)c->arg + jobnr*c->argsize);
- else
- ret= c->func2(c->avctx, c->arg, jobnr, c->threadnr);
- if (c->ret)
- c->ret[jobnr] = ret;
-//printf("thread_func %X signal complete\n", (int)v); fflush(stdout);
- ReleaseSemaphore(c->done_sem, 1, 0);
- }
-
- return 0;
-}
-
-/**
- * Free what has been allocated by ff_thread_init().
- * Must be called after decoding has finished, especially do not call while avcodec_thread_execute() is running.
- */
-void ff_thread_free(AVCodecContext *s){
- ThreadContext *c= s->thread_opaque;
- int i;
-
- for(i=0; i<s->thread_count; i++){
-
- c[i].func= NULL;
- c[i].func2= NULL;
- }
- ReleaseSemaphore(c[0].work_sem, s->thread_count, 0);
- for(i=0; i<s->thread_count; i++){
- WaitForSingleObject(c[i].thread, INFINITE);
- if(c[i].thread) CloseHandle(c[i].thread);
- }
- if(c[0].work_sem) CloseHandle(c[0].work_sem);
- if(c[0].job_sem) CloseHandle(c[0].job_sem);
- if(c[0].done_sem) CloseHandle(c[0].done_sem);
-
- av_freep(&s->thread_opaque);
-}
-
-static int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
- ThreadContext *c= s->thread_opaque;
- int i;
- int jobnr = 0;
-
- assert(s == c->avctx);
-
- /* note, we can be certain that this is not called with the same AVCodecContext by different threads at the same time */
-
- for(i=0; i<s->thread_count; i++){
- c[i].arg= arg;
- c[i].argsize= size;
- c[i].func= func;
- c[i].ret= ret;
- c[i].jobnr = &jobnr;
- }
- ReleaseSemaphore(c[0].work_sem, count, 0);
- for(i=0; i<count; i++)
- WaitForSingleObject(c[0].done_sem, INFINITE);
-
- return 0;
-}
-
-static int avcodec_thread_execute2(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2, int, int),void *arg, int *ret, int count){
- ThreadContext *c= s->thread_opaque;
- int i;
- for(i=0; i<s->thread_count; i++)
- c[i].func2 = func;
- avcodec_thread_execute(s, NULL, arg, ret, count, 0);
-}
-
-int ff_thread_init(AVCodecContext *s){
- int i;
- ThreadContext *c;
- uint32_t threadid;
-
- if(!(s->thread_type & FF_THREAD_SLICE)){
- av_log(s, AV_LOG_WARNING, "The requested thread algorithm is not supported with this thread library.\n");
- return 0;
- }
-
- s->active_thread_type= FF_THREAD_SLICE;
-
- if (s->thread_count <= 1)
- return 0;
-
- assert(!s->thread_opaque);
- c= av_mallocz(sizeof(ThreadContext)*s->thread_count);
- s->thread_opaque= c;
- if(!(c[0].work_sem = CreateSemaphore(NULL, 0, INT_MAX, NULL)))
- goto fail;
- if(!(c[0].job_sem = CreateSemaphore(NULL, 1, 1, NULL)))
- goto fail;
- if(!(c[0].done_sem = CreateSemaphore(NULL, 0, INT_MAX, NULL)))
- goto fail;
-
- for(i=0; i<s->thread_count; i++){
-//printf("init semaphors %d\n", i); fflush(stdout);
- c[i].avctx= s;
- c[i].work_sem = c[0].work_sem;
- c[i].job_sem = c[0].job_sem;
- c[i].done_sem = c[0].done_sem;
- c[i].threadnr = i;
-
-//printf("create thread %d\n", i); fflush(stdout);
- c[i].thread = (HANDLE)_beginthreadex(NULL, 0, thread_func, &c[i], 0, &threadid );
- if( !c[i].thread ) goto fail;
- }
-//printf("init done\n"); fflush(stdout);
-
- s->execute= avcodec_thread_execute;
- s->execute2= avcodec_thread_execute2;
-
- return 0;
-fail:
- ff_thread_free(s);
- return -1;
-}
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