From 7b6622705e552b1dd5284b743974b66abe04954b Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Wed, 3 Aug 2022 14:08:44 +0200
Subject: fftools/ffmpeg: move the input thread into its own file

It will contain more demuxing-specific code in the future.
---
 fftools/ffmpeg.c | 110 -------------------------------------------------------
 1 file changed, 110 deletions(-)

(limited to 'fftools/ffmpeg.c')

diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index 46de9ce40b..72cba3a525 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -161,8 +161,6 @@ static struct termios oldtty;
 static int restore_tty;
 #endif
 
-static void free_input_threads(void);
-
 /* sub2video hack:
    Convert subtitles to video with alpha to insert them in filter graphs.
    This is a temporary solution until libavfilter gets real subtitles support.
@@ -3636,114 +3634,6 @@ static int check_keyboard_interaction(int64_t cur_time)
     return 0;
 }
 
-static void *input_thread(void *arg)
-{
-    InputFile *f = arg;
-    AVPacket *pkt = f->pkt, *queue_pkt;
-    unsigned flags = f->non_blocking ? AV_THREAD_MESSAGE_NONBLOCK : 0;
-    int ret = 0;
-
-    while (1) {
-        ret = av_read_frame(f->ctx, pkt);
-
-        if (ret == AVERROR(EAGAIN)) {
-            av_usleep(10000);
-            continue;
-        }
-        if (ret < 0) {
-            av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
-            break;
-        }
-        queue_pkt = av_packet_alloc();
-        if (!queue_pkt) {
-            av_packet_unref(pkt);
-            av_thread_message_queue_set_err_recv(f->in_thread_queue, AVERROR(ENOMEM));
-            break;
-        }
-        av_packet_move_ref(queue_pkt, pkt);
-        ret = av_thread_message_queue_send(f->in_thread_queue, &queue_pkt, flags);
-        if (flags && ret == AVERROR(EAGAIN)) {
-            flags = 0;
-            ret = av_thread_message_queue_send(f->in_thread_queue, &queue_pkt, flags);
-            av_log(f->ctx, AV_LOG_WARNING,
-                   "Thread message queue blocking; consider raising the "
-                   "thread_queue_size option (current value: %d)\n",
-                   f->thread_queue_size);
-        }
-        if (ret < 0) {
-            if (ret != AVERROR_EOF)
-                av_log(f->ctx, AV_LOG_ERROR,
-                       "Unable to send packet to main thread: %s\n",
-                       av_err2str(ret));
-            av_packet_free(&queue_pkt);
-            av_thread_message_queue_set_err_recv(f->in_thread_queue, ret);
-            break;
-        }
-    }
-
-    return NULL;
-}
-
-static void free_input_thread(int i)
-{
-    InputFile *f = input_files[i];
-    AVPacket *pkt;
-
-    if (!f || !f->in_thread_queue)
-        return;
-    av_thread_message_queue_set_err_send(f->in_thread_queue, AVERROR_EOF);
-    while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0)
-        av_packet_free(&pkt);
-
-    pthread_join(f->thread, NULL);
-    av_thread_message_queue_free(&f->in_thread_queue);
-}
-
-static void free_input_threads(void)
-{
-    int i;
-
-    for (i = 0; i < nb_input_files; i++)
-        free_input_thread(i);
-}
-
-static int init_input_thread(int i)
-{
-    int ret;
-    InputFile *f = input_files[i];
-
-    if (f->thread_queue_size <= 0)
-        f->thread_queue_size = (nb_input_files > 1 ? 8 : 1);
-
-    if (f->ctx->pb ? !f->ctx->pb->seekable :
-        strcmp(f->ctx->iformat->name, "lavfi"))
-        f->non_blocking = 1;
-    ret = av_thread_message_queue_alloc(&f->in_thread_queue,
-                                        f->thread_queue_size, sizeof(f->pkt));
-    if (ret < 0)
-        return ret;
-
-    if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) {
-        av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret));
-        av_thread_message_queue_free(&f->in_thread_queue);
-        return AVERROR(ret);
-    }
-
-    return 0;
-}
-
-static int init_input_threads(void)
-{
-    int i, ret;
-
-    for (i = 0; i < nb_input_files; i++) {
-        ret = init_input_thread(i);
-        if (ret < 0)
-            return ret;
-    }
-    return 0;
-}
-
 static int get_input_packet(InputFile *f, AVPacket **pkt)
 {
     if (f->readrate || f->rate_emu) {
-- 
cgit v1.2.3