Binary text decoder

[ffmpeg] / libavformat / au.c

diff --git a/libavformat/au.c b/libavformat/au.c
index 593442807cd36b36f6bc38ade0e97483912096a7..477bcdb67f3914fae0cfa195bb33f469b84584e2 100644 (file)
--- a/libavformat/au.c
+++ b/libavformat/au.c
@@ -120,7 +120,7 @@ static int au_probe(AVProbeData *p)
 static int au_read_header(AVFormatContext *s,
                           AVFormatParameters *ap)
 {
-    int size, data_size = 0;
+    int size, bps, data_size = 0;
     unsigned int tag;
     AVIOContext *pb = s->pb;
     unsigned int id, channels, rate;
@@ -134,7 +134,7 @@ static int au_read_header(AVFormatContext *s,
     size = avio_rb32(pb); /* header size */
     data_size = avio_rb32(pb); /* data size in bytes */
 
-    if (data_size < 0) {
+    if (data_size < 0 && data_size != AU_UNKNOWN_SIZE) {
         av_log(s, AV_LOG_ERROR, "Invalid negative data size '%d' found\n", data_size);
         return AVERROR_INVALIDDATA;
     }
@@ -145,7 +145,7 @@ static int au_read_header(AVFormatContext *s,
 
     codec = ff_codec_get_id(codec_au_tags, id);
 
-    if (!av_get_bits_per_sample(codec)) {
+    if (!(bps = av_get_bits_per_sample(codec))) {
         av_log_ask_for_sample(s, "could not determine bits per sample\n");
         return AVERROR_INVALIDDATA;
     }
@@ -164,7 +164,8 @@ static int au_read_header(AVFormatContext *s,
     st->codec->codec_id = codec;
     st->codec->channels = channels;
     st->codec->sample_rate = rate;
-    st->duration = (((int64_t)data_size)<<3) / (st->codec->channels * av_get_bits_per_sample(codec));
+    if (data_size != AU_UNKNOWN_SIZE)
+    st->duration = (((int64_t)data_size)<<3) / (st->codec->channels * bps);
     av_set_pts_info(st, 64, 1, rate);
     return 0;
 }