#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 {
- pthread_t *workers;
+ AVSliceThread *thread;
action_func *func;
action_func2 *func2;
+ main_func *mainfunc;
void *args;
int *rets;
- int job_count;
int job_size;
- pthread_cond_t last_job_cond;
- pthread_cond_t current_job_cond;
- pthread_mutex_t current_job_lock;
- unsigned current_execute;
- int current_job;
- int done;
-
int *entries;
int entries_count;
int thread_count;
pthread_mutex_t *progress_mutex;
} SliceThreadContext;
-static void* attribute_align_arg worker(void *v)
-{
- AVCodecContext *avctx = v;
+static void main_function(void *priv) {
+ AVCodecContext *avctx = priv;
SliceThreadContext *c = avctx->internal->thread_ctx;
- unsigned last_execute = 0;
- int our_job = c->job_count;
- int thread_count = avctx->thread_count;
- int self_id;
-
- pthread_mutex_lock(&c->current_job_lock);
- self_id = c->current_job++;
- for (;;){
- int ret;
- while (our_job >= c->job_count) {
- if (c->current_job == thread_count + c->job_count)
- pthread_cond_signal(&c->last_job_cond);
-
- while (last_execute == c->current_execute && !c->done)
- pthread_cond_wait(&c->current_job_cond, &c->current_job_lock);
- last_execute = c->current_execute;
- our_job = self_id;
-
- if (c->done) {
- pthread_mutex_unlock(&c->current_job_lock);
- return NULL;
- }
- }
- pthread_mutex_unlock(&c->current_job_lock);
+ c->mainfunc(avctx);
+}
- ret = c->func ? c->func(avctx, (char*)c->args + our_job*c->job_size):
- c->func2(avctx, c->args, our_job, self_id);
- if (c->rets)
- c->rets[our_job%c->job_count] = ret;
+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;
- pthread_mutex_lock(&c->current_job_lock);
- our_job = c->current_job++;
- }
+ 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;
- pthread_mutex_lock(&c->current_job_lock);
- c->done = 1;
- pthread_cond_broadcast(&c->current_job_cond);
- for (i = 0; i < c->thread_count; i++)
- pthread_cond_broadcast(&c->progress_cond[i]);
- pthread_mutex_unlock(&c->current_job_lock);
-
- for (i=0; i<avctx->thread_count; i++)
- pthread_join(c->workers[i], NULL);
+ 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]);
}
- pthread_mutex_destroy(&c->current_job_lock);
- pthread_cond_destroy(&c->current_job_cond);
- pthread_cond_destroy(&c->last_job_cond);
-
av_freep(&c->entries);
av_freep(&c->progress_mutex);
av_freep(&c->progress_cond);
-
- av_freep(&c->workers);
av_freep(&avctx->internal->thread_ctx);
}
-static av_always_inline void thread_park_workers(SliceThreadContext *c, int thread_count)
-{
- while (c->current_job != thread_count + c->job_count)
- pthread_cond_wait(&c->last_job_cond, &c->current_job_lock);
- pthread_mutex_unlock(&c->current_job_lock);
-}
-
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 (job_count <= 0)
return 0;
- pthread_mutex_lock(&c->current_job_lock);
-
- c->current_job = avctx->thread_count;
- c->job_count = job_count;
c->job_size = job_size;
c->args = arg;
c->func = func;
c->rets = ret;
- c->current_execute++;
- pthread_cond_broadcast(&c->current_job_cond);
-
- thread_park_workers(c, avctx->thread_count);
+ avpriv_slicethread_execute(c->thread, job_count, !!c->mainfunc );
return 0;
}
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)
{
- int i;
SliceThreadContext *c;
int thread_count = avctx->thread_count;
+ static void (*mainfunc)(void *);
#if HAVE_W32THREADS
w32thread_init();
return 0;
}
- c = av_mallocz(sizeof(SliceThreadContext));
- if (!c)
- return -1;
-
- c->workers = av_mallocz_array(thread_count, sizeof(pthread_t));
- if (!c->workers) {
- av_free(c);
- return -1;
- }
-
- avctx->internal->thread_ctx = c;
- c->current_job = 0;
- c->job_count = 0;
- c->job_size = 0;
- c->done = 0;
- pthread_cond_init(&c->current_job_cond, NULL);
- pthread_cond_init(&c->last_job_cond, NULL);
- pthread_mutex_init(&c->current_job_lock, NULL);
- pthread_mutex_lock(&c->current_job_lock);
- for (i=0; i<thread_count; i++) {
- if(pthread_create(&c->workers[i], NULL, worker, avctx)) {
- avctx->thread_count = i;
- pthread_mutex_unlock(&c->current_job_lock);
- ff_thread_free(avctx);
- return -1;
- }
+ 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;
}
-
- thread_park_workers(c, thread_count);
+ avctx->thread_count = thread_count;
avctx->execute = thread_execute;
avctx->execute2 = thread_execute2;
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