Rework link property configuration system.

[ffmpeg] / libavformat / c93.c

diff --git a/libavformat/c93.c b/libavformat/c93.c
index 86f1253985137fcf382f06385292976247c07a78..996012f6edd7aba2bd9acf457e12514f439c5328 100644 (file)
--- a/libavformat/c93.c
+++ b/libavformat/c93.c
@@ -16,8 +16,7 @@
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include "avformat.h"
@@ -42,11 +41,8 @@ typedef struct {
     AVStream *audio;
 } C93DemuxContext;
 
-static int c93_probe(AVProbeData *p)
+static int probe(AVProbeData *p)
 {
-    if (p->buf_size < 13)
-        return 0;
-
     if (p->buf[0] == 0x01 && p->buf[1] == 0x00 &&
         p->buf[4] == 0x01 + p->buf[2] &&
         p->buf[8] == p->buf[4] + p->buf[6] &&
@@ -56,11 +52,11 @@ static int c93_probe(AVProbeData *p)
     return 0;
 }
 
-static int c93_read_header(AVFormatContext *s,
+static int read_header(AVFormatContext *s,
                            AVFormatParameters *ap)
 {
     AVStream *video;
-    ByteIOContext *pb = &s->pb;
+    ByteIOContext *pb = s->pb;
     C93DemuxContext *c93 = s->priv_data;
     int i;
     int framecount = 0;
@@ -81,7 +77,7 @@ static int c93_read_header(AVFormatContext *s,
 
     video = av_new_stream(s, 0);
     if (!video)
-        return AVERROR_NOMEM;
+        return AVERROR(ENOMEM);
 
     video->codec->codec_type = CODEC_TYPE_VIDEO;
     video->codec->codec_id = CODEC_ID_C93;
@@ -103,9 +99,9 @@ static int c93_read_header(AVFormatContext *s,
 #define C93_HAS_PALETTE 0x01
 #define C93_FIRST_FRAME 0x02
 
-static int c93_read_packet(AVFormatContext *s, AVPacket *pkt)
+static int read_packet(AVFormatContext *s, AVPacket *pkt)
 {
-    ByteIOContext *pb = &s->pb;
+    ByteIOContext *pb = s->pb;
     C93DemuxContext *c93 = s->priv_data;
     C93BlockRecord *br = &c93->block_records[c93->current_block];
     int datasize;
@@ -119,7 +115,7 @@ static int c93_read_packet(AVFormatContext *s, AVPacket *pkt)
             if (!c93->audio) {
                 c93->audio = av_new_stream(s, 1);
                 if (!c93->audio)
-                    return AVERROR_NOMEM;
+                    return AVERROR(ENOMEM);
                 c93->audio->codec->codec_type = CODEC_TYPE_AUDIO;
             }
             url_fskip(pb, 26); /* VOC header */
@@ -133,7 +129,7 @@ static int c93_read_packet(AVFormatContext *s, AVPacket *pkt)
     }
     if (c93->current_frame >= br->frames) {
         if (c93->current_block >= 511 || !br[1].length)
-            return AVERROR_IO;
+            return AVERROR(EIO);
         br++;
         c93->current_block++;
         c93->current_frame = 0;
@@ -158,7 +154,7 @@ static int c93_read_packet(AVFormatContext *s, AVPacket *pkt)
 
     ret = get_buffer(pb, pkt->data + 1, datasize);
     if (ret < datasize) {
-        ret = AVERROR_IO;
+        ret = AVERROR(EIO);
         goto fail;
     }
 
@@ -172,7 +168,7 @@ static int c93_read_packet(AVFormatContext *s, AVPacket *pkt)
         pkt->data[0] |= C93_HAS_PALETTE;
         ret = get_buffer(pb, pkt->data + pkt->size, datasize);
         if (ret < datasize) {
-            ret = AVERROR_IO;
+            ret = AVERROR(EIO);
             goto fail;
         }
         pkt->size += 768;
@@ -196,7 +192,7 @@ AVInputFormat c93_demuxer = {
     "c93",
     "Interplay C93",
     sizeof(C93DemuxContext),
-    c93_probe,
-    c93_read_header,
-    c93_read_packet,
+    probe,
+    read_header,
+    read_packet,
 };