static int mov_write_udta_tag(ByteIOContext *pb, MOVContext* mov, AVFormatContext *s) { int pos = url_ftell(pb); int i; put_be32(pb, 0); /* size */ put_tag(pb, "udta"); /* iTunes meta data */ mov_write_meta_tag(pb, mov, s); /* Requirements */ for (i=0; i<MAX_STREAMS; i++) { if(mov->tracks[i].entry <= 0) continue; if (mov->tracks[i].enc->codec_id == CODEC_ID_AAC || mov->tracks[i].enc->codec_id == CODEC_ID_MPEG4) { int pos = url_ftell(pb); put_be32(pb, 0); /* size */ put_tag(pb, "\251req"); put_be16(pb, sizeof("QuickTime 6.0 or greater") - 1); put_be16(pb, 0); put_buffer(pb, "QuickTime 6.0 or greater", sizeof("QuickTime 6.0 or greater") - 1); updateSize(pb, pos); break; } } /* Encoder */ if(!(mov->tracks[0].enc->flags & CODEC_FLAG_BITEXACT)) { int pos = url_ftell(pb); put_be32(pb, 0); /* size */ put_tag(pb, "\251enc"); put_be16(pb, sizeof(LIBAVFORMAT_IDENT) - 1); /* string length */ put_be16(pb, 0); put_buffer(pb, LIBAVFORMAT_IDENT, sizeof(LIBAVFORMAT_IDENT) - 1); updateSize(pb, pos); } if( s->title[0] ) { int pos = url_ftell(pb); put_be32(pb, 0); /* size */ put_tag(pb, "\251nam"); put_be16(pb, strlen(s->title)); /* string length */ put_be16(pb, 0); put_buffer(pb, s->title, strlen(s->title)); updateSize(pb, pos); } if( s->author[0] ) { int pos = url_ftell(pb); put_be32(pb, 0); /* size */ put_tag(pb, /*"\251aut"*/ "\251day" ); put_be16(pb, strlen(s->author)); /* string length */ put_be16(pb, 0); put_buffer(pb, s->author, strlen(s->author)); updateSize(pb, pos); } if( s->comment[0] ) { int pos = url_ftell(pb); put_be32(pb, 0); /* size */ put_tag(pb, "\251des"); put_be16(pb, strlen(s->comment)); /* string length */ put_be16(pb, 0); put_buffer(pb, s->comment, strlen(s->comment)); updateSize(pb, pos); } return updateSize(pb, pos); }