diff --git a/libavformat/mpjpeg.c b/libavformat/mpjpeg.c
index 46a98b3d44..dce53ce3de 100644
--- a/libavformat/mpjpeg.c
+++ b/libavformat/mpjpeg.c
@@ -28,7 +28,7 @@ static int mpjpeg_write_header(AVFormatContext *s)
 {
     uint8_t buf1[256];
 
-    snprintf(buf1, sizeof(buf1), "--%s\n", BOUNDARY_TAG);
+    snprintf(buf1, sizeof(buf1), "--%s\r\n", BOUNDARY_TAG);
     avio_write(s->pb, buf1, strlen(buf1));
     avio_flush(s->pb);
     return 0;
@@ -38,11 +38,14 @@ static int mpjpeg_write_packet(AVFormatContext *s, AVPacket *pkt)
 {
     uint8_t buf1[256];
 
-    snprintf(buf1, sizeof(buf1), "Content-type: image/jpeg\n\n");
+    snprintf(buf1, sizeof(buf1), "Content-type: image/jpeg\r\n");
+    avio_write(s->pb, buf1, strlen(buf1));
+
+    snprintf(buf1, sizeof(buf1), "Content-length: %d\r\n\r\n", pkt->size);
     avio_write(s->pb, buf1, strlen(buf1));
     avio_write(s->pb, pkt->data, pkt->size);
 
-    snprintf(buf1, sizeof(buf1), "\n--%s\n", BOUNDARY_TAG);
+    snprintf(buf1, sizeof(buf1), "\r\n--%s\r\n", BOUNDARY_TAG);
     avio_write(s->pb, buf1, strlen(buf1));
     avio_flush(s->pb);
     return 0;