From b57ca77132eba48b2ec275fcc3199dc34c395a74 Mon Sep 17 00:00:00 2001
From: Kamil Trzcinski <ayufan@ayufan.eu>
Date: Thu, 7 Apr 2022 23:17:06 +0200
Subject: [PATCH] Allow to compile without ffmpeg

---
 Makefile           | 9 ++++++++-
 cmd/main.c         | 2 ++
 http/http_ffmpeg.c | 4 ++++
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index a4e3e99..aa1905b 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,14 @@ HEADERS := $(wildcard **/*.h)
 HTML := $(wildcard html/*.js html/*.html)
 
 CFLAGS := -Werror -g -I$(PWD)
-LDLIBS := -lpthread -lavcodec -lavformat -lavutil
+LDLIBS := -lpthread
+
+USE_FFMPEG ?= $(shell pkg-config libavutil libavformat libavcodec && echo 1)
+
+ifeq (1,$(USE_FFMPEG))
+CFLAGS += -DUSE_FFMPEG
+LDLIBS += -lavcodec -lavformat -lavutil
+endif
 
 HTML_SRC = $(addsuffix .c,$(HTML))
 OBJS = $(subst .c,.o,$(SRC) $(HTML_SRC))
diff --git a/cmd/main.c b/cmd/main.c
index 73cab67..53ec9b3 100644
--- a/cmd/main.c
+++ b/cmd/main.c
@@ -16,9 +16,11 @@ http_method_t http_methods[] = {
   { "GET /?action=stream", http_stream },
   { "GET /video?", http_video_html },
   { "GET /video.h264?", http_h264_video },
+#ifdef USE_FFMPEG
   { "GET /video.mkv?", http_mkv_video },
   { "GET /video.mp4?", http_mp4_video },
   { "GET /jmuxer.min.js?", http_jmuxer_js },
+#endif // USE_FFMPEG
   { "GET /?", http_index },
   { }
 };
diff --git a/http/http_ffmpeg.c b/http/http_ffmpeg.c
index 48e7a74..7811380 100644
--- a/http/http_ffmpeg.c
+++ b/http/http_ffmpeg.c
@@ -1,3 +1,5 @@
+#ifdef USE_FFMPEG
+
 #include <stdio.h>
 #include <stdlib.h>
 
@@ -330,3 +332,5 @@ void http_mp4_video(http_worker_t *worker, FILE *stream)
 {
   http_ffmpeg_video(worker, stream, "video/mp4", "mp4");
 }
+
+#endif // USE_FFMPEG