wavdec: add ignore length option to ignore incorrect lengthes

[ffmpeg] / libavformat / asfdec.c

diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index e09b70070f6ff138020154cb3a8c03731b86e28c..0bb210bcd6992df1a0b429b111057b29e0e96a29 100644 (file)
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -28,6 +28,7 @@
 #include "libavutil/mathematics.h"
 #include "libavcodec/mpegaudio.h"
 #include "avformat.h"
+#include "internal.h"
 #include "avio_internal.h"
 #include "riff.h"
 #include "asf.h"
@@ -165,6 +166,9 @@ static void get_tag(AVFormatContext *s, const char *key, int type, int len)
 
     if (type == 0) {         // UTF16-LE
         avio_get_str16le(s->pb, len, value, 2*len + 1);
+    } else if (type == -1) { // ASCII
+        avio_read(s->pb, value, len);
+        value[len]=0;
     } else if (type > 1 && type <= 5) {  // boolean or DWORD or QWORD or WORD
         uint64_t num = get_value(s->pb, type);
         snprintf(value, len, "%"PRIu64, num);
@@ -221,10 +225,10 @@ static int asf_read_stream_properties(AVFormatContext *s, int64_t size)
 
     pos1 = avio_tell(pb);
 
-    st = av_new_stream(s, 0);
+    st = avformat_new_stream(s, NULL);
     if (!st)
         return AVERROR(ENOMEM);
-    av_set_pts_info(st, 32, 1, 1000); /* 32 bit pts in ms */
+    avpriv_set_pts_info(st, 32, 1, 1000); /* 32 bit pts in ms */
     asf_st = av_mallocz(sizeof(ASFStream));
     if (!asf_st)
         return AVERROR(ENOMEM);
@@ -355,7 +359,7 @@ static int asf_read_stream_properties(AVFormatContext *s, int64_t size)
 
         /* Extract palette from extradata if bpp <= 8 */
         /* This code assumes that extradata contains only palette */
-        /* This is true for all paletted codecs implemented in ffmpeg */
+        /* This is true for all paletted codecs implemented in libavcodec */
         if (st->codec->extradata_size && (st->codec->bits_per_coded_sample <= 8)) {
             int av_unused i;
 #if HAVE_BIGENDIAN
@@ -566,7 +570,7 @@ static int asf_read_marker(AVFormatContext *s, int64_t size)
         name_len = avio_rl32(pb);  // name length
         if ((ret = avio_get_str16le(pb, name_len * 2, name, sizeof(name))) < name_len)
             avio_skip(pb, name_len - ret);
-        ff_new_chapter(s, i, (AVRational){1, 10000000}, pres_time, AV_NOPTS_VALUE, name );
+        avpriv_new_chapter(s, i, (AVRational){1, 10000000}, pres_time, AV_NOPTS_VALUE, name );
     }
 
     return 0;
@@ -636,11 +640,23 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
         } else {
             if (!s->keylen) {
                 if (!ff_guidcmp(&g, &ff_asf_content_encryption)) {
+                    unsigned int len;
+                    AVPacket pkt;
                     av_log(s, AV_LOG_WARNING, "DRM protected stream detected, decoding will likely fail!\n");
+                    len= avio_rl32(pb);
+                    av_log(s, AV_LOG_DEBUG, "Secret data:\n");
+                    av_get_packet(pb, &pkt, len); av_hex_dump_log(s, AV_LOG_DEBUG, pkt.data, pkt.size); av_free_packet(&pkt);
+                    len= avio_rl32(pb);
+                    get_tag(s, "ASF_Protection_Type", -1, len);
+                    len= avio_rl32(pb);
+                    get_tag(s, "ASF_Key_ID", -1, len);
+                    len= avio_rl32(pb);
+                    get_tag(s, "ASF_License_URL", -1, len);
                 } else if (!ff_guidcmp(&g, &ff_asf_ext_content_encryption)) {
                     av_log(s, AV_LOG_WARNING, "Ext DRM protected stream detected, decoding will likely fail!\n");
+                    av_dict_set(&s->metadata, "encryption", "ASF Extended Content Encryption", 0);
                 } else if (!ff_guidcmp(&g, &ff_asf_digital_signature)) {
-                    av_log(s, AV_LOG_WARNING, "Digital signature detected, decoding will likely fail!\n");
+                    av_log(s, AV_LOG_INFO, "Digital signature detected!\n");
                 }
             }
         }
@@ -797,7 +813,7 @@ static int asf_read_frame_header(AVFormatContext *s, AVIOContext *pb){
     ASFContext *asf = s->priv_data;
     int rsize = 1;
     int num = avio_r8(pb);
-    int64_t ts0;
+    int64_t ts0, ts1 av_unused;
 
     asf->packet_segments--;
     asf->packet_key_frame = num >> 7;
@@ -807,6 +823,10 @@ static int asf_read_frame_header(AVFormatContext *s, AVIOContext *pb){
     DO_2BITS(asf->packet_property >> 2, asf->packet_frag_offset, 0);
     DO_2BITS(asf->packet_property, asf->packet_replic_size, 0);
 //printf("key:%d stream:%d seq:%d offset:%d replic_size:%d\n", asf->packet_key_frame, asf->stream_index, asf->packet_seq, //asf->packet_frag_offset, asf->packet_replic_size);
+    if (rsize+asf->packet_replic_size > asf->packet_size_left) {
+        av_log(s, AV_LOG_ERROR, "packet_replic_size %d is invalid\n", asf->packet_replic_size);
+        return -1;
+    }
     if (asf->packet_replic_size >= 8) {
         asf->packet_obj_size = avio_rl32(pb);
         if(asf->packet_obj_size >= (1<<24) || asf->packet_obj_size <= 0){
@@ -820,7 +840,7 @@ static int asf_read_frame_header(AVFormatContext *s, AVIOContext *pb){
 //            av_log(s, AV_LOG_DEBUG, "\n");
             avio_skip(pb, 10);
             ts0= avio_rl64(pb);
-            avio_skip(pb, 8);;
+            ts1= avio_rl64(pb);
             avio_skip(pb, 12);
             avio_rl32(pb);
             avio_skip(pb, asf->packet_replic_size - 8 - 38 - 4);
@@ -841,10 +861,6 @@ static int asf_read_frame_header(AVFormatContext *s, AVIOContext *pb){
         av_log(s, AV_LOG_ERROR, "unexpected packet_replic_size of %d\n", asf->packet_replic_size);
         return -1;
     }
-    if (rsize > asf->packet_size_left) {
-        av_log(s, AV_LOG_ERROR, "packet_replic_size is invalid\n");
-        return -1;
-    }
     if (asf->packet_flags & 0x01) {
         DO_2BITS(asf->packet_segsizetype >> 6, asf->packet_frag_size, 0); // 0 is illegal
         if (rsize > asf->packet_size_left) {
@@ -1166,7 +1182,7 @@ static int64_t asf_read_pts(AVFormatContext *s, int stream_index, int64_t *ppos,
             return AV_NOPTS_VALUE;
         }
 
-        pts= pkt->pts;
+        pts = pkt->dts;
 
         av_free_packet(pkt);
         if(pkt->flags&AV_PKT_FLAG_KEY){
@@ -1282,7 +1298,7 @@ static int asf_read_seek(AVFormatContext *s, int stream_index, int64_t pts, int
         }
     }
     /* no index or seeking by index failed */
-    if(av_seek_frame_binary(s, stream_index, pts, flags)<0)
+    if (ff_seek_frame_binary(s, stream_index, pts, flags) < 0)
         return -1;
     asf_reset_header(s);
     return 0;