Remove reimplementation of av_log2

[ffmpeg] / libavformat / avidec.c

diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index 83674f4cd4a7e293dc5f08f0d51977ead80d179b..53621c50181df08c4736775c52a512b4db0712a5 100644 (file)
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -442,7 +442,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
                     st->codec->codec_type = CODEC_TYPE_VIDEO;
                     st->codec->codec_tag = tag1;
                     st->codec->codec_id = codec_get_id(codec_bmp_tags, tag1);
-                    st->need_parsing = 2; //only parse headers dont do slower repacketization, this is needed to get the pict type which is needed for generating correct pts
+                    st->need_parsing = AVSTREAM_PARSE_HEADERS; // this is needed to get the pict type which is needed for generating correct pts
 //                    url_fskip(pb, size - 5 * 4);
                     break;
                 case CODEC_TYPE_AUDIO:
@@ -452,11 +452,11 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
                     if (size%2) /* 2-aligned (fix for Stargate SG-1 - 3x18 - Shades of Grey.avi) */
                         url_fskip(pb, 1);
                     /* Force parsing as several audio frames can be in
-                     * one packet. */
-                    st->need_parsing = 1;
+                     * one packet and timestamps refer to packet start*/
+                    st->need_parsing = AVSTREAM_PARSE_TIMESTAMPS;
                     /* ADTS header is in extradata, AAC without header must be stored as exact frames, parser not needed and it will fail */
                     if (st->codec->codec_id == CODEC_ID_AAC && st->codec->extradata_size)
-                        st->need_parsing = 0;
+                        st->need_parsing = AVSTREAM_PARSE_NONE;
                     /* AVI files with Xan DPCM audio (wrongly) declare PCM
                      * audio in the header but have Axan as stream_code_tag. */
                     if (st->codec->stream_codec_tag == ff_get_fourcc("Axan")){
@@ -503,6 +503,13 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
             sscanf(str_track, "%d", &s->track);
             break;
         default:
+            if(size > 1000000){
+                av_log(s, AV_LOG_ERROR, "well something went wrong during header parsing, "
+                                        "ill ignore it and try to continue anyway\n");
+                avi->movi_list = url_ftell(pb) - 4;
+                avi->movi_end  = url_fsize(pb);
+                goto end_of_header;
+            }
             /* skip tag */
             size += (size & 1);
             url_fskip(pb, size);
@@ -988,8 +995,6 @@ static int avi_read_close(AVFormatContext *s)
 static int avi_probe(AVProbeData *p)
 {
     /* check file header */
-    if (p->buf_size <= 32)
-        return 0;
     if (p->buf[0] == 'R' && p->buf[1] == 'I' &&
         p->buf[2] == 'F' && p->buf[3] == 'F' &&
         p->buf[8] == 'A' && p->buf[9] == 'V' &&