avformat: Constify all muxer/demuxers

[ffmpeg] / libavformat / rl2.c

diff --git a/libavformat/rl2.c b/libavformat/rl2.c
index eb1682dfcb7c2983a9a5c06175aac0e470c9e357..8b6a7f1827ba90deeace93217e43a3a2d8fda99f 100644 (file)
--- a/libavformat/rl2.c
+++ b/libavformat/rl2.c
@@ -55,7 +55,7 @@ typedef struct Rl2DemuxContext {
  * @param p probe buffer
  * @return 0 when the probe buffer does not contain rl2 data, > 0 otherwise
  */
-static int rl2_probe(AVProbeData *p)
+static int rl2_probe(const AVProbeData *p)
 {
 
     if(AV_RB32(&p->buf[0]) != FORM_TAG)
@@ -127,8 +127,9 @@ static av_cold int rl2_read_header(AVFormatContext *s)
     if(signature == RLV3_TAG && back_size > 0)
         st->codecpar->extradata_size += back_size;
 
-    if(ff_get_extradata(s, st->codecpar, pb, st->codecpar->extradata_size) < 0)
-        return AVERROR(ENOMEM);
+    ret = ff_get_extradata(s, st->codecpar, pb, st->codecpar->extradata_size);
+    if (ret < 0)
+        return ret;
 
     /** setup audio stream if present */
     if(sound_rate){
@@ -171,18 +172,24 @@ static av_cold int rl2_read_header(AVFormatContext *s)
 
     /** read offset and size tables */
     for(i=0; i < frame_count;i++) {
-        if (avio_feof(pb))
-            return AVERROR_INVALIDDATA;
+        if (avio_feof(pb)) {
+            ret = AVERROR_INVALIDDATA;
+            goto end;
+        }
         chunk_size[i] = avio_rl32(pb);
     }
     for(i=0; i < frame_count;i++) {
-        if (avio_feof(pb))
-            return AVERROR_INVALIDDATA;
+        if (avio_feof(pb)) {
+            ret = AVERROR_INVALIDDATA;
+            goto end;
+        }
         chunk_offset[i] = avio_rl32(pb);
     }
     for(i=0; i < frame_count;i++) {
-        if (avio_feof(pb))
-            return AVERROR_INVALIDDATA;
+        if (avio_feof(pb)) {
+            ret = AVERROR_INVALIDDATA;
+            goto end;
+        }
         audio_size[i] = avio_rl32(pb) & 0xFFFF;
     }
 
@@ -203,7 +210,7 @@ static av_cold int rl2_read_header(AVFormatContext *s)
         ++video_frame_counter;
     }
 
-
+end:
     av_free(chunk_size);
     av_free(audio_size);
     av_free(chunk_offset);
@@ -230,9 +237,9 @@ static int rl2_read_packet(AVFormatContext *s,
 
     /** check if there is a valid video or audio entry that can be used */
     for(i=0; i<s->nb_streams; i++){
-        if(rl2->index_pos[i] < s->streams[i]->nb_index_entries
-              && s->streams[i]->index_entries[ rl2->index_pos[i] ].pos < pos){
-            sample = &s->streams[i]->index_entries[ rl2->index_pos[i] ];
+        if(rl2->index_pos[i] < s->streams[i]->internal->nb_index_entries
+              && s->streams[i]->internal->index_entries[ rl2->index_pos[i] ].pos < pos){
+            sample = &s->streams[i]->internal->index_entries[ rl2->index_pos[i] ];
             pos= sample->pos;
             stream_id= i;
         }
@@ -249,7 +256,6 @@ static int rl2_read_packet(AVFormatContext *s,
     /** fill the packet */
     ret = av_get_packet(pb, pkt, sample->size);
     if(ret != sample->size){
-        av_packet_unref(pkt);
         return AVERROR(EIO);
     }
 
@@ -277,7 +283,7 @@ static int rl2_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp
         return -1;
 
     rl2->index_pos[stream_index] = index;
-    timestamp = st->index_entries[index].timestamp;
+    timestamp = st->internal->index_entries[index].timestamp;
 
     for(i=0; i < s->nb_streams; i++){
         AVStream *st2 = s->streams[i];
@@ -294,7 +300,7 @@ static int rl2_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp
     return 0;
 }
 
-AVInputFormat ff_rl2_demuxer = {
+const AVInputFormat ff_rl2_demuxer = {
     .name           = "rl2",
     .long_name      = NULL_IF_CONFIG_SMALL("RL2"),
     .priv_data_size = sizeof(Rl2DemuxContext),