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https://github.com/FFmpeg/FFmpeg.git
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790f793844
There are lots of files that don't need it: The number of object files that actually need it went down from 2011 to 884 here. Keep it for external users in order to not cause breakages. Also improve the other headers a bit while just at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
264 lines
9.6 KiB
C
264 lines
9.6 KiB
C
/*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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/**
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* Thread message API test
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*/
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#include "libavutil/avassert.h"
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#include "libavutil/avstring.h"
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#include "libavutil/frame.h"
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#include "libavutil/mem.h"
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#include "libavutil/threadmessage.h"
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#include "libavutil/thread.h" // not public
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struct sender_data {
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int id;
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pthread_t tid;
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int workload;
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AVThreadMessageQueue *queue;
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};
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/* same as sender_data but shuffled for testing purpose */
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struct receiver_data {
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pthread_t tid;
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int workload;
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int id;
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AVThreadMessageQueue *queue;
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};
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struct message {
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AVFrame *frame;
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// we add some junk in the message to make sure the message size is >
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// sizeof(void*)
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int magic;
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};
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#define MAGIC 0xdeadc0de
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static void free_frame(void *arg)
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{
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struct message *msg = arg;
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av_assert0(msg->magic == MAGIC);
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av_frame_free(&msg->frame);
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}
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static void *sender_thread(void *arg)
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{
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int i, ret = 0;
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struct sender_data *wd = arg;
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av_log(NULL, AV_LOG_INFO, "sender #%d: workload=%d\n", wd->id, wd->workload);
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for (i = 0; i < wd->workload; i++) {
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if (rand() % wd->workload < wd->workload / 10) {
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av_log(NULL, AV_LOG_INFO, "sender #%d: flushing the queue\n", wd->id);
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av_thread_message_flush(wd->queue);
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} else {
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char *val;
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AVDictionary *meta = NULL;
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struct message msg = {
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.magic = MAGIC,
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.frame = av_frame_alloc(),
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};
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if (!msg.frame) {
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ret = AVERROR(ENOMEM);
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break;
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}
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/* we add some metadata to identify the frames */
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val = av_asprintf("frame %d/%d from sender %d",
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i + 1, wd->workload, wd->id);
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if (!val) {
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av_frame_free(&msg.frame);
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ret = AVERROR(ENOMEM);
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break;
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}
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ret = av_dict_set(&meta, "sig", val, AV_DICT_DONT_STRDUP_VAL);
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if (ret < 0) {
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av_frame_free(&msg.frame);
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break;
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}
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msg.frame->metadata = meta;
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/* allocate a real frame in order to simulate "real" work */
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msg.frame->format = AV_PIX_FMT_RGBA;
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msg.frame->width = 320;
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msg.frame->height = 240;
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ret = av_frame_get_buffer(msg.frame, 0);
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if (ret < 0) {
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av_frame_free(&msg.frame);
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break;
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}
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/* push the frame in the common queue */
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av_log(NULL, AV_LOG_INFO, "sender #%d: sending my work (%d/%d frame:%p)\n",
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wd->id, i + 1, wd->workload, msg.frame);
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ret = av_thread_message_queue_send(wd->queue, &msg, 0);
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if (ret < 0) {
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av_frame_free(&msg.frame);
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break;
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}
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}
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}
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av_log(NULL, AV_LOG_INFO, "sender #%d: my work is done here (%s)\n",
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wd->id, av_err2str(ret));
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av_thread_message_queue_set_err_recv(wd->queue, ret < 0 ? ret : AVERROR_EOF);
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return NULL;
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}
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static void *receiver_thread(void *arg)
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{
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int i, ret = 0;
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struct receiver_data *rd = arg;
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for (i = 0; i < rd->workload; i++) {
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if (rand() % rd->workload < rd->workload / 10) {
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av_log(NULL, AV_LOG_INFO, "receiver #%d: flushing the queue, "
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"discarding %d message(s)\n", rd->id,
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av_thread_message_queue_nb_elems(rd->queue));
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av_thread_message_flush(rd->queue);
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} else {
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struct message msg;
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AVDictionary *meta;
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AVDictionaryEntry *e;
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ret = av_thread_message_queue_recv(rd->queue, &msg, 0);
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if (ret < 0)
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break;
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av_assert0(msg.magic == MAGIC);
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meta = msg.frame->metadata;
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e = av_dict_get(meta, "sig", NULL, 0);
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av_log(NULL, AV_LOG_INFO, "got \"%s\" (%p)\n", e->value, msg.frame);
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av_frame_free(&msg.frame);
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}
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}
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av_log(NULL, AV_LOG_INFO, "consumed enough (%d), stop\n", i);
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av_thread_message_queue_set_err_send(rd->queue, ret < 0 ? ret : AVERROR_EOF);
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return NULL;
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}
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static int get_workload(int minv, int maxv)
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{
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return maxv == minv ? maxv : rand() % (maxv - minv) + minv;
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}
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int main(int ac, char **av)
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{
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int i, ret = 0;
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int max_queue_size;
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int nb_senders, sender_min_load, sender_max_load;
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int nb_receivers, receiver_min_load, receiver_max_load;
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struct sender_data *senders;
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struct receiver_data *receivers;
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AVThreadMessageQueue *queue = NULL;
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if (ac != 8) {
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av_log(NULL, AV_LOG_ERROR, "%s <max_queue_size> "
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"<nb_senders> <sender_min_send> <sender_max_send> "
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"<nb_receivers> <receiver_min_recv> <receiver_max_recv>\n", av[0]);
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return 1;
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}
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max_queue_size = atoi(av[1]);
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nb_senders = atoi(av[2]);
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sender_min_load = atoi(av[3]);
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sender_max_load = atoi(av[4]);
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nb_receivers = atoi(av[5]);
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receiver_min_load = atoi(av[6]);
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receiver_max_load = atoi(av[7]);
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if (max_queue_size <= 0 ||
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nb_senders <= 0 || sender_min_load <= 0 || sender_max_load <= 0 ||
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nb_receivers <= 0 || receiver_min_load <= 0 || receiver_max_load <= 0) {
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av_log(NULL, AV_LOG_ERROR, "negative values not allowed\n");
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return 1;
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}
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av_log(NULL, AV_LOG_INFO, "qsize:%d / %d senders sending [%d-%d] / "
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"%d receivers receiving [%d-%d]\n", max_queue_size,
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nb_senders, sender_min_load, sender_max_load,
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nb_receivers, receiver_min_load, receiver_max_load);
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senders = av_calloc(nb_senders, sizeof(*senders));
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receivers = av_calloc(nb_receivers, sizeof(*receivers));
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if (!senders || !receivers) {
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ret = AVERROR(ENOMEM);
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goto end;
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}
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ret = av_thread_message_queue_alloc(&queue, max_queue_size, sizeof(struct message));
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if (ret < 0)
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goto end;
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av_thread_message_queue_set_free_func(queue, free_frame);
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#define SPAWN_THREADS(type) do { \
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for (i = 0; i < nb_##type##s; i++) { \
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struct type##_data *td = &type##s[i]; \
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\
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td->id = i; \
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td->queue = queue; \
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td->workload = get_workload(type##_min_load, type##_max_load); \
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\
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ret = pthread_create(&td->tid, NULL, type##_thread, td); \
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if (ret) { \
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const int err = AVERROR(ret); \
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av_log(NULL, AV_LOG_ERROR, "Unable to start " AV_STRINGIFY(type) \
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" thread: %s\n", av_err2str(err)); \
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goto end; \
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} \
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} \
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} while (0)
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#define WAIT_THREADS(type) do { \
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for (i = 0; i < nb_##type##s; i++) { \
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struct type##_data *td = &type##s[i]; \
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\
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ret = pthread_join(td->tid, NULL); \
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if (ret) { \
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const int err = AVERROR(ret); \
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av_log(NULL, AV_LOG_ERROR, "Unable to join " AV_STRINGIFY(type) \
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" thread: %s\n", av_err2str(err)); \
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goto end; \
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} \
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} \
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} while (0)
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SPAWN_THREADS(receiver);
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SPAWN_THREADS(sender);
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WAIT_THREADS(sender);
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WAIT_THREADS(receiver);
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end:
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av_thread_message_queue_free(&queue);
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av_freep(&senders);
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av_freep(&receivers);
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if (ret < 0 && ret != AVERROR_EOF) {
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av_log(NULL, AV_LOG_ERROR, "Error: %s\n", av_err2str(ret));
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return 1;
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}
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return 0;
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}
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