avformat: Constify all muxer/demuxers

[ffmpeg] / libavformat / gifdec.c

diff --git a/libavformat/gifdec.c b/libavformat/gifdec.c
index 7dc67ba87537b6523e8f85a3d794472295df114a..c20bde178191067f574144377a07af751a429bac 100644 (file)
--- a/libavformat/gifdec.c
+++ b/libavformat/gifdec.c
@@ -69,7 +69,7 @@ typedef struct GIFDemuxContext {
  */
 #define GIF_MIN_DELAY       2
 
-static int gif_probe(AVProbeData *p)
+static int gif_probe(const AVProbeData *p)
 {
     /* check magick */
     if (memcmp(p->buf, gif87a_sig, 6) && memcmp(p->buf, gif89a_sig, 6))
@@ -144,7 +144,7 @@ static int gif_read_header(AVFormatContext *s)
                 AVBPrint bp;
                 int block_size;
 
-                av_bprint_init(&bp, 0, -1);
+                av_bprint_init(&bp, 0, AV_BPRINT_SIZE_UNLIMITED);
                 while ((block_size = avio_r8(pb)) != 0) {
                     avio_read_to_bprint(pb, &bp, block_size);
                 }
@@ -397,7 +397,7 @@ static const AVClass demuxer_class = {
     .category   = AV_CLASS_CATEGORY_DEMUXER,
 };
 
-AVInputFormat ff_gif_demuxer = {
+const AVInputFormat ff_gif_demuxer = {
     .name           = "gif",
     .long_name      = NULL_IF_CONFIG_SMALL("CompuServe Graphics Interchange Format (GIF)"),
     .priv_data_size = sizeof(GIFDemuxContext),