* to Michael Niedermayer <michaelni@gmx.at> for writing initial
* implementation.
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#if HAVE_SCHED_GETAFFINITY
-#define _GNU_SOURCE
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE
+#endif
#include <sched.h>
#endif
#if HAVE_GETPROCESSAFFINITYMASK
#include <sys/param.h>
#endif
#include <sys/types.h>
+#include <sys/param.h>
#include <sys/sysctl.h>
#endif
#if HAVE_SYSCONF
#include <pthread.h>
#elif HAVE_W32THREADS
#include "w32pthreads.h"
+#elif HAVE_OS2THREADS
+#include "os2threads.h"
#endif
typedef int (action_func)(AVCodecContext *c, void *arg);
pthread_cond_t current_job_cond;
pthread_mutex_t current_job_lock;
int current_job;
+ unsigned int current_execute;
int done;
} ThreadContext;
* limit the number of threads to 16 for automatic detection */
#define MAX_AUTO_THREADS 16
-static int get_logical_cpus(AVCodecContext *avctx)
+int ff_get_logical_cpus(AVCodecContext *avctx)
{
int ret, nb_cpus = 1;
#if HAVE_SCHED_GETAFFINITY && defined(CPU_COUNT)
nb_cpus = sysconf(_SC_NPROCESSORS_ONLN);
#endif
av_log(avctx, AV_LOG_DEBUG, "detected %d logical cores\n", nb_cpus);
+
+ if (avctx->height)
+ nb_cpus = FFMIN(nb_cpus, (avctx->height+15)/16);
+
return nb_cpus;
}
AVCodecContext *avctx = v;
ThreadContext *c = avctx->thread_opaque;
int our_job = c->job_count;
+ int last_execute = 0;
int thread_count = avctx->thread_count;
int self_id;
if (c->current_job == thread_count + c->job_count)
pthread_cond_signal(&c->last_job_cond);
- pthread_cond_wait(&c->current_job_cond, &c->current_job_lock);
+ 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) {
static av_always_inline void avcodec_thread_park_workers(ThreadContext *c, int thread_count)
{
- pthread_cond_wait(&c->last_job_cond, &c->current_job_lock);
+ 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);
}
c->rets = &dummy_ret;
c->rets_count = 1;
}
+ c->current_execute++;
pthread_cond_broadcast(&c->current_job_cond);
avcodec_thread_park_workers(c, avctx->thread_count);
int thread_count = avctx->thread_count;
if (!thread_count) {
- int nb_cpus = get_logical_cpus(avctx);
+ int nb_cpus = ff_get_logical_cpus(avctx);
// 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);
AVCodecContext *avctx = p->avctx;
const AVCodec *codec = avctx->codec;
+ pthread_mutex_lock(&p->mutex);
while (1) {
- if (p->state == STATE_INPUT_READY && !fctx->die) {
- pthread_mutex_lock(&p->mutex);
while (p->state == STATE_INPUT_READY && !fctx->die)
pthread_cond_wait(&p->input_cond, &p->mutex);
- pthread_mutex_unlock(&p->mutex);
- }
if (fctx->die) break;
- if (!codec->update_thread_context && avctx->thread_safe_callbacks)
+ if (!codec->update_thread_context && (avctx->thread_safe_callbacks || (
+#if FF_API_GET_BUFFER
+ !avctx->get_buffer &&
+#endif
+ avctx->get_buffer2 == avcodec_default_get_buffer2)))
ff_thread_finish_setup(avctx);
- pthread_mutex_lock(&p->mutex);
avcodec_get_frame_defaults(&p->frame);
p->got_frame = 0;
p->result = codec->decode(avctx, &p->frame, &p->got_frame, &p->avpkt);
if (p->state == STATE_SETTING_UP) ff_thread_finish_setup(avctx);
+ pthread_mutex_lock(&p->progress_mutex);
+#if 0 //BUFREF-FIXME
+ for (i = 0; i < MAX_BUFFERS; i++)
+ if (p->progress_used[i] && (p->got_frame || p->result<0 || avctx->codec_id != AV_CODEC_ID_H264)) {
+ p->progress[i][0] = INT_MAX;
+ p->progress[i][1] = INT_MAX;
+ }
+#endif
p->state = STATE_INPUT_READY;
- pthread_mutex_lock(&p->progress_mutex);
+ pthread_cond_broadcast(&p->progress_cond);
pthread_cond_signal(&p->output_cond);
pthread_mutex_unlock(&p->progress_mutex);
-
- pthread_mutex_unlock(&p->mutex);
}
+ pthread_mutex_unlock(&p->mutex);
return NULL;
}
}
if (for_user) {
+ dst->delay = src->thread_count - 1;
dst->coded_frame = src->coded_frame;
} else {
if (dst->codec->update_thread_context)
dst->frame_number = src->frame_number;
dst->reordered_opaque = src->reordered_opaque;
+ dst->thread_safe_callbacks = src->thread_safe_callbacks;
if (src->slice_count && src->slice_offset) {
if (dst->slice_count < src->slice_count) {
void ff_thread_report_progress(ThreadFrame *f, int n, int field)
{
PerThreadContext *p;
- int *progress = f->progress ? (int*)f->progress->data : NULL;
+ volatile int *progress = f->progress ? (int*)f->progress->data : NULL;
if (!progress || progress[field] >= n) return;
void ff_thread_await_progress(ThreadFrame *f, int n, int field)
{
PerThreadContext *p;
- int *progress = f->progress ? (int*)f->progress->data : NULL;
+ volatile int *progress = f->progress ? (int*)f->progress->data : NULL;
if (!progress || progress[field] >= n) return;
if (!(avctx->active_thread_type&FF_THREAD_FRAME)) return;
+ if(p->state == STATE_SETUP_FINISHED){
+ av_log(avctx, AV_LOG_WARNING, "Multiple ff_thread_finish_setup() calls\n");
+ }
+
pthread_mutex_lock(&p->progress_mutex);
p->state = STATE_SETUP_FINISHED;
pthread_cond_broadcast(&p->progress_cond);
pthread_cond_wait(&p->output_cond, &p->progress_mutex);
pthread_mutex_unlock(&p->progress_mutex);
}
+ p->got_frame = 0;
}
}
park_frame_worker_threads(fctx, thread_count);
if (fctx->prev_thread && fctx->prev_thread != fctx->threads)
- update_context_from_thread(fctx->threads->avctx, fctx->prev_thread->avctx, 0);
+ if (update_context_from_thread(fctx->threads->avctx, fctx->prev_thread->avctx, 0) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Final thread update failed\n");
+ fctx->prev_thread->avctx->internal->is_copy = fctx->threads->avctx->internal->is_copy;
+ fctx->threads->avctx->internal->is_copy = 1;
+ }
fctx->die = 1;
if (p->thread_init)
pthread_join(p->thread, NULL);
+ p->thread_init=0;
if (codec->close)
codec->close(p->avctx);
int i, err = 0;
if (!thread_count) {
- int nb_cpus = get_logical_cpus(avctx);
+ int nb_cpus = ff_get_logical_cpus(avctx);
+ if ((avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) || avctx->debug_mv)
+ nb_cpus = 1;
// 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);
if (err) goto error;
- if (!pthread_create(&p->thread, NULL, frame_worker_thread, p))
- p->thread_init = 1;
+ err = AVERROR(pthread_create(&p->thread, NULL, frame_worker_thread, p));
+ p->thread_init= !err;
+ if(!p->thread_init)
+ goto error;
}
return 0;
}
}
-int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
+int ff_thread_can_start_frame(AVCodecContext *avctx)
+{
+ PerThreadContext *p = avctx->thread_opaque;
+ if ((avctx->active_thread_type&FF_THREAD_FRAME) && p->state != STATE_SETTING_UP &&
+ (avctx->codec->update_thread_context || (!avctx->thread_safe_callbacks && (
+#if FF_API_GET_BUFFER
+ avctx->get_buffer ||
+#endif
+ avctx->get_buffer2 != avcodec_default_get_buffer2)))) {
+ return 0;
+ }
+ return 1;
+}
+
+static int thread_get_buffer_internal(AVCodecContext *avctx, ThreadFrame *f, int flags)
{
PerThreadContext *p = avctx->thread_opaque;
int err;
f->owner = avctx;
+ ff_init_buffer_info(avctx, f->f);
+
if (!(avctx->active_thread_type & FF_THREAD_FRAME))
return ff_get_buffer(avctx, f->f, flags);
if (p->state != STATE_SETTING_UP &&
- (avctx->codec->update_thread_context || !avctx->thread_safe_callbacks)) {
+ (avctx->codec->update_thread_context || (!avctx->thread_safe_callbacks && (
+#if FF_API_GET_BUFFER
+ avctx->get_buffer ||
+#endif
+ avctx->get_buffer2 != avcodec_default_get_buffer2)))) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() cannot be called after ff_thread_finish_setup()\n");
return -1;
}
}
pthread_mutex_lock(&p->parent->buffer_mutex);
+
if (avctx->thread_safe_callbacks || (
#if FF_API_GET_BUFFER
!avctx->get_buffer &&
avctx->get_buffer2 == avcodec_default_get_buffer2)) {
err = ff_get_buffer(avctx, f->f, flags);
} else {
+ pthread_mutex_lock(&p->progress_mutex);
p->requested_frame = f->f;
p->requested_flags = flags;
p->state = STATE_GET_BUFFER;
- pthread_mutex_lock(&p->progress_mutex);
- pthread_cond_signal(&p->progress_cond);
+ pthread_cond_broadcast(&p->progress_cond);
while (p->state != STATE_SETTING_UP)
pthread_cond_wait(&p->progress_cond, &p->progress_mutex);
return err;
}
+int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
+{
+ int ret = thread_get_buffer_internal(avctx, f, flags);
+ if (ret < 0)
+ av_log(avctx, AV_LOG_ERROR, "thread_get_buffer() failed\n");
+ return ret;
+}
+
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
{
PerThreadContext *p = avctx->thread_opaque;
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