avformat: Constify all muxer/demuxers

[ffmpeg] / libavformat / aiffdec.c

diff --git a/libavformat/aiffdec.c b/libavformat/aiffdec.c
index 7c701e0c700769d5e47b990f463393f9aca153e1..cade05a9d6ff99676c9c16878bb3a2c093a4cd8a 100644 (file)
--- a/libavformat/aiffdec.c
+++ b/libavformat/aiffdec.c
@@ -20,15 +20,14 @@
  */
 
 #include "libavutil/intreadwrite.h"
-#include "libavutil/mathematics.h"
 #include "libavutil/dict.h"
 #include "avformat.h"
 #include "internal.h"
 #include "pcm.h"
 #include "aiff.h"
-#include "isom.h"
 #include "id3v2.h"
 #include "mov_chan.h"
+#include "replaygain.h"
 
 #define AIFF                    0
 #define AIFF_C_VERSION1         0xA2805140
@@ -119,6 +118,8 @@ static int get_aiff_header(AVFormatContext *s, int size,
     else
         sample_rate = (val + (1ULL<<(-exp-1))) >> -exp;
     par->sample_rate = sample_rate;
+    if (size < 18)
+        return AVERROR_INVALIDDATA;
     size -= 18;
 
     /* get codec id for AIFF-C */
@@ -189,7 +190,7 @@ static int get_aiff_header(AVFormatContext *s, int size,
     return num_frames;
 }
 
-static int aiff_probe(AVProbeData *p)
+static int aiff_probe(const AVProbeData *p)
 {
     /* check file header */
     if (p->buf[0] == 'F' && p->buf[1] == 'O' &&
@@ -211,7 +212,7 @@ static int aiff_read_header(AVFormatContext *s)
     AVIOContext *pb = s->pb;
     AVStream * st;
     AIFFInputContext *aiff = s->priv_data;
-    ID3v2ExtraMeta *id3v2_extra_meta = NULL;
+    ID3v2ExtraMeta *id3v2_extra_meta;
 
     /* check FORM header */
     filesize = get_tag(pb, &tag);
@@ -242,7 +243,10 @@ static int aiff_read_header(AVFormatContext *s)
         if (size < 0)
             return size;
 
-        filesize -= size + 8;
+        if (size >= 0x7fffffff - 8)
+            filesize = 0;
+        else
+            filesize -= size + 8;
 
         switch (tag) {
         case MKTAG('C', 'O', 'M', 'M'):     /* Common chunk */
@@ -257,8 +261,8 @@ static int aiff_read_header(AVFormatContext *s)
             position = avio_tell(pb);
             ff_id3v2_read(s, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta, size);
             if (id3v2_extra_meta)
-                if ((ret = ff_id3v2_parse_apic(s, &id3v2_extra_meta)) < 0 ||
-                    (ret = ff_id3v2_parse_chapters(s, &id3v2_extra_meta)) < 0) {
+                if ((ret = ff_id3v2_parse_apic(s, id3v2_extra_meta)) < 0 ||
+                    (ret = ff_id3v2_parse_chapters(s, id3v2_extra_meta)) < 0) {
                     ff_id3v2_free_extra_meta(&id3v2_extra_meta);
                     return ret;
                 }
@@ -282,6 +286,8 @@ static int aiff_read_header(AVFormatContext *s)
             get_meta(s, "comment"  , size);
             break;
         case MKTAG('S', 'S', 'N', 'D'):     /* Sampled sound chunk */
+            if (size < 8)
+                return AVERROR_INVALIDDATA;
             aiff->data_end = avio_tell(pb) + size;
             offset = avio_rb32(pb);      /* Offset of sound data */
             avio_rb32(pb);               /* BlockSize... don't care */
@@ -297,8 +303,8 @@ static int aiff_read_header(AVFormatContext *s)
         case MKTAG('w', 'a', 'v', 'e'):
             if ((uint64_t)size > (1<<30))
                 return -1;
-            if (ff_get_extradata(s, st->codecpar, pb, size) < 0)
-                return AVERROR(ENOMEM);
+            if ((ret = ff_get_extradata(s, st->codecpar, pb, size)) < 0)
+                return ret;
             if (   (st->codecpar->codec_id == AV_CODEC_ID_QDMC || st->codecpar->codec_id == AV_CODEC_ID_QDM2)
                 && size>=12*4 && !st->codecpar->block_align) {
                 st->codecpar->block_align = AV_RB32(st->codecpar->extradata+11*4);
@@ -321,8 +327,8 @@ static int aiff_read_header(AVFormatContext *s)
             }
             break;
         case MKTAG('C','H','A','N'):
-            if(ff_mov_read_chan(s, pb, st, size) < 0)
-                return AVERROR_INVALIDDATA;
+            if ((ret = ff_mov_read_chan(s, pb, st, size)) < 0)
+                return ret;
             break;
         case MKTAG('A','P','C','M'): /* XA ADPCM compressed sound chunk */
             st->codecpar->codec_id = AV_CODEC_ID_ADPCM_XA;
@@ -348,6 +354,10 @@ static int aiff_read_header(AVFormatContext *s)
         }
     }
 
+    ret = ff_replaygain_export(st, s->metadata);
+    if (ret < 0)
+        return ret;
+
 got_sound:
     if (!st->codecpar->block_align && st->codecpar->codec_id == AV_CODEC_ID_QCELP) {
         av_log(s, AV_LOG_WARNING, "qcelp without wave chunk, assuming full rate\n");
@@ -398,6 +408,8 @@ static int aiff_read_packet(AVFormatContext *s,
         break;
     default:
         size = st->codecpar->block_align ? (MAX_SIZE / st->codecpar->block_align) * st->codecpar->block_align : MAX_SIZE;
+        if (!size)
+            return AVERROR_INVALIDDATA;
     }
     size = FFMIN(max_size, size);
     res = av_get_packet(s->pb, pkt, size);
@@ -412,7 +424,7 @@ static int aiff_read_packet(AVFormatContext *s,
     return 0;
 }
 
-AVInputFormat ff_aiff_demuxer = {
+const AVInputFormat ff_aiff_demuxer = {
     .name           = "aiff",
     .long_name      = NULL_IF_CONFIG_SMALL("Audio IFF"),
     .priv_data_size = sizeof(AIFFInputContext),
@@ -420,5 +432,5 @@ AVInputFormat ff_aiff_demuxer = {
     .read_header    = aiff_read_header,
     .read_packet    = aiff_read_packet,
     .read_seek      = ff_pcm_read_seek,
-    .codec_tag      = (const AVCodecTag* const []){ ff_codec_aiff_tags, 0 },
+    .codec_tag      = ff_aiff_codec_tags_list,
 };