avformat: Constify all muxer/demuxers

[ffmpeg] / libavformat / sdr2.c

diff --git a/libavformat/sdr2.c b/libavformat/sdr2.c
index c9953336c5a48f4e03f4b3844214f4b61a180a0f..373116a4a66a2474b0a4838d0c5f2f6612447687 100644 (file)
--- a/libavformat/sdr2.c
+++ b/libavformat/sdr2.c
@@ -23,7 +23,7 @@
 #include "avformat.h"
 #include "internal.h"
 
-static int sdr2_probe(AVProbeData *p)
+static int sdr2_probe(const AVProbeData *p)
 {
     if (AV_RL32(p->buf) != MKTAG('S', 'R', 'A', 1))
         return 0;
@@ -90,12 +90,11 @@ static int sdr2_read_packet(AVFormatContext *s, AVPacket *pkt)
     avio_skip(s->pb, 30);
 
     if (pos == FIRST) {
-        if (av_new_packet(pkt, next - 52 + 24) < 0)
-            return AVERROR(ENOMEM);
+        if ((ret = av_new_packet(pkt, next - 52 + 24)) < 0)
+            return ret;
         memcpy(pkt->data, header, 24);
         ret = avio_read(s->pb, pkt->data + 24, next - 52);
         if (ret < 0) {
-            av_packet_unref(pkt);
             return ret;
         }
         av_shrink_packet(pkt, ret + 24);
@@ -110,7 +109,7 @@ static int sdr2_read_packet(AVFormatContext *s, AVPacket *pkt)
     return ret;
 }
 
-AVInputFormat ff_sdr2_demuxer = {
+const AVInputFormat ff_sdr2_demuxer = {
     .name        = "sdr2",
     .long_name   = NULL_IF_CONFIG_SMALL("SDR2"),
     .read_probe  = sdr2_probe,