mirror of
https://github.com/pineappleEA/pineapple-src.git
synced 2024-12-09 05:18:25 -05:00
243 lines
7.4 KiB
C
Executable File
243 lines
7.4 KiB
C
Executable File
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg 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.
|
|
*
|
|
* FFmpeg 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 FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* Slice multithreading support functions
|
|
* @see doc/multithreading.txt
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "avcodec.h"
|
|
#include "internal.h"
|
|
#include "pthread_internal.h"
|
|
#include "thread.h"
|
|
|
|
#include "libavutil/avassert.h"
|
|
#include "libavutil/common.h"
|
|
#include "libavutil/cpu.h"
|
|
#include "libavutil/mem.h"
|
|
#include "libavutil/thread.h"
|
|
#include "libavutil/slicethread.h"
|
|
|
|
typedef int (action_func)(AVCodecContext *c, void *arg);
|
|
typedef int (action_func2)(AVCodecContext *c, void *arg, int jobnr, int threadnr);
|
|
typedef int (main_func)(AVCodecContext *c);
|
|
|
|
typedef struct SliceThreadContext {
|
|
AVSliceThread *thread;
|
|
action_func *func;
|
|
action_func2 *func2;
|
|
main_func *mainfunc;
|
|
void *args;
|
|
int *rets;
|
|
int job_size;
|
|
|
|
int *entries;
|
|
int entries_count;
|
|
int thread_count;
|
|
pthread_cond_t *progress_cond;
|
|
pthread_mutex_t *progress_mutex;
|
|
} SliceThreadContext;
|
|
|
|
static void main_function(void *priv) {
|
|
AVCodecContext *avctx = priv;
|
|
SliceThreadContext *c = avctx->internal->thread_ctx;
|
|
c->mainfunc(avctx);
|
|
}
|
|
|
|
static void worker_func(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads)
|
|
{
|
|
AVCodecContext *avctx = priv;
|
|
SliceThreadContext *c = avctx->internal->thread_ctx;
|
|
int ret;
|
|
|
|
ret = c->func ? c->func(avctx, (char *)c->args + c->job_size * jobnr)
|
|
: c->func2(avctx, c->args, jobnr, threadnr);
|
|
if (c->rets)
|
|
c->rets[jobnr] = ret;
|
|
}
|
|
|
|
void ff_slice_thread_free(AVCodecContext *avctx)
|
|
{
|
|
SliceThreadContext *c = avctx->internal->thread_ctx;
|
|
int i;
|
|
|
|
avpriv_slicethread_free(&c->thread);
|
|
|
|
for (i = 0; i < c->thread_count; i++) {
|
|
pthread_mutex_destroy(&c->progress_mutex[i]);
|
|
pthread_cond_destroy(&c->progress_cond[i]);
|
|
}
|
|
|
|
av_freep(&c->entries);
|
|
av_freep(&c->progress_mutex);
|
|
av_freep(&c->progress_cond);
|
|
av_freep(&avctx->internal->thread_ctx);
|
|
}
|
|
|
|
static int thread_execute(AVCodecContext *avctx, action_func* func, void *arg, int *ret, int job_count, int job_size)
|
|
{
|
|
SliceThreadContext *c = avctx->internal->thread_ctx;
|
|
|
|
if (!(avctx->active_thread_type&FF_THREAD_SLICE) || avctx->thread_count <= 1)
|
|
return avcodec_default_execute(avctx, func, arg, ret, job_count, job_size);
|
|
|
|
if (job_count <= 0)
|
|
return 0;
|
|
|
|
c->job_size = job_size;
|
|
c->args = arg;
|
|
c->func = func;
|
|
c->rets = ret;
|
|
|
|
avpriv_slicethread_execute(c->thread, job_count, !!c->mainfunc );
|
|
return 0;
|
|
}
|
|
|
|
static int thread_execute2(AVCodecContext *avctx, action_func2* func2, void *arg, int *ret, int job_count)
|
|
{
|
|
SliceThreadContext *c = avctx->internal->thread_ctx;
|
|
c->func2 = func2;
|
|
return thread_execute(avctx, NULL, arg, ret, job_count, 0);
|
|
}
|
|
|
|
int ff_slice_thread_execute_with_mainfunc(AVCodecContext *avctx, action_func2* func2, main_func *mainfunc, void *arg, int *ret, int job_count)
|
|
{
|
|
SliceThreadContext *c = avctx->internal->thread_ctx;
|
|
c->func2 = func2;
|
|
c->mainfunc = mainfunc;
|
|
return thread_execute(avctx, NULL, arg, ret, job_count, 0);
|
|
}
|
|
|
|
int ff_slice_thread_init(AVCodecContext *avctx)
|
|
{
|
|
SliceThreadContext *c;
|
|
int thread_count = avctx->thread_count;
|
|
static void (*mainfunc)(void *);
|
|
|
|
// We cannot do this in the encoder init as the threads are created before
|
|
if (av_codec_is_encoder(avctx->codec) &&
|
|
avctx->codec_id == AV_CODEC_ID_MPEG1VIDEO &&
|
|
avctx->height > 2800)
|
|
thread_count = avctx->thread_count = 1;
|
|
|
|
if (!thread_count) {
|
|
int nb_cpus = av_cpu_count();
|
|
if (avctx->height)
|
|
nb_cpus = FFMIN(nb_cpus, (avctx->height+15)/16);
|
|
// use number of cores + 1 as thread count if there is more than one
|
|
if (nb_cpus > 1)
|
|
thread_count = avctx->thread_count = FFMIN(nb_cpus + 1, MAX_AUTO_THREADS);
|
|
else
|
|
thread_count = avctx->thread_count = 1;
|
|
}
|
|
|
|
if (thread_count <= 1) {
|
|
avctx->active_thread_type = 0;
|
|
return 0;
|
|
}
|
|
|
|
avctx->internal->thread_ctx = c = av_mallocz(sizeof(*c));
|
|
mainfunc = avctx->codec->caps_internal & FF_CODEC_CAP_SLICE_THREAD_HAS_MF ? &main_function : NULL;
|
|
if (!c || (thread_count = avpriv_slicethread_create(&c->thread, avctx, worker_func, mainfunc, thread_count)) <= 1) {
|
|
if (c)
|
|
avpriv_slicethread_free(&c->thread);
|
|
av_freep(&avctx->internal->thread_ctx);
|
|
avctx->thread_count = 1;
|
|
avctx->active_thread_type = 0;
|
|
return 0;
|
|
}
|
|
avctx->thread_count = thread_count;
|
|
|
|
avctx->execute = thread_execute;
|
|
avctx->execute2 = thread_execute2;
|
|
return 0;
|
|
}
|
|
|
|
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n)
|
|
{
|
|
SliceThreadContext *p = avctx->internal->thread_ctx;
|
|
int *entries = p->entries;
|
|
|
|
pthread_mutex_lock(&p->progress_mutex[thread]);
|
|
entries[field] +=n;
|
|
pthread_cond_signal(&p->progress_cond[thread]);
|
|
pthread_mutex_unlock(&p->progress_mutex[thread]);
|
|
}
|
|
|
|
void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift)
|
|
{
|
|
SliceThreadContext *p = avctx->internal->thread_ctx;
|
|
int *entries = p->entries;
|
|
|
|
if (!entries || !field) return;
|
|
|
|
thread = thread ? thread - 1 : p->thread_count - 1;
|
|
|
|
pthread_mutex_lock(&p->progress_mutex[thread]);
|
|
while ((entries[field - 1] - entries[field]) < shift){
|
|
pthread_cond_wait(&p->progress_cond[thread], &p->progress_mutex[thread]);
|
|
}
|
|
pthread_mutex_unlock(&p->progress_mutex[thread]);
|
|
}
|
|
|
|
int ff_alloc_entries(AVCodecContext *avctx, int count)
|
|
{
|
|
int i;
|
|
|
|
if (avctx->active_thread_type & FF_THREAD_SLICE) {
|
|
SliceThreadContext *p = avctx->internal->thread_ctx;
|
|
|
|
if (p->entries) {
|
|
av_assert0(p->thread_count == avctx->thread_count);
|
|
av_freep(&p->entries);
|
|
}
|
|
|
|
p->thread_count = avctx->thread_count;
|
|
p->entries = av_mallocz_array(count, sizeof(int));
|
|
|
|
if (!p->progress_mutex) {
|
|
p->progress_mutex = av_malloc_array(p->thread_count, sizeof(pthread_mutex_t));
|
|
p->progress_cond = av_malloc_array(p->thread_count, sizeof(pthread_cond_t));
|
|
}
|
|
|
|
if (!p->entries || !p->progress_mutex || !p->progress_cond) {
|
|
av_freep(&p->entries);
|
|
av_freep(&p->progress_mutex);
|
|
av_freep(&p->progress_cond);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
p->entries_count = count;
|
|
|
|
for (i = 0; i < p->thread_count; i++) {
|
|
pthread_mutex_init(&p->progress_mutex[i], NULL);
|
|
pthread_cond_init(&p->progress_cond[i], NULL);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void ff_reset_entries(AVCodecContext *avctx)
|
|
{
|
|
SliceThreadContext *p = avctx->internal->thread_ctx;
|
|
memset(p->entries, 0, p->entries_count * sizeof(int));
|
|
}
|