X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fflacdec.c;h=163d2fac613fcaccafdfe83600b9cc2195c27fc3;hb=9cb6a39c461abc8d3dd79dc5a59243038664fb65;hp=73308f45f645f87c2aba561dfa525e94a165106a;hpb=70d9fb696393277247101da47e67d568a6aea4d9;p=ffmpeg diff --git a/libavformat/flacdec.c b/libavformat/flacdec.c index 73308f45f64..163d2fac613 100644 --- a/libavformat/flacdec.c +++ b/libavformat/flacdec.c @@ -21,9 +21,11 @@ #include "libavcodec/flac.h" #include "avformat.h" +#include "internal.h" #include "rawdec.h" #include "oggdec.h" #include "vorbiscomment.h" +#include "libavcodec/bytestream.h" static int flac_read_header(AVFormatContext *s, AVFormatParameters *ap) @@ -31,7 +33,7 @@ static int flac_read_header(AVFormatContext *s, int ret, metadata_last=0, metadata_type, metadata_size, found_streaminfo=0; uint8_t header[4]; uint8_t *buffer=NULL; - AVStream *st = av_new_stream(s, 0); + AVStream *st = avformat_new_stream(s, NULL); if (!st) return AVERROR(ENOMEM); st->codec->codec_type = AVMEDIA_TYPE_AUDIO; @@ -48,11 +50,12 @@ static int flac_read_header(AVFormatContext *s, /* process metadata blocks */ while (!url_feof(s->pb) && !metadata_last) { avio_read(s->pb, header, 4); - ff_flac_parse_block_header(header, &metadata_last, &metadata_type, + avpriv_flac_parse_block_header(header, &metadata_last, &metadata_type, &metadata_size); switch (metadata_type) { /* allocate and read metadata block for supported types */ case FLAC_METADATA_TYPE_STREAMINFO: + case FLAC_METADATA_TYPE_CUESHEET: case FLAC_METADATA_TYPE_VORBIS_COMMENT: buffer = av_mallocz(metadata_size + FF_INPUT_BUFFER_PADDING_SIZE); if (!buffer) { @@ -87,14 +90,39 @@ static int flac_read_header(AVFormatContext *s, buffer = NULL; /* get codec params from STREAMINFO header */ - ff_flac_parse_streaminfo(st->codec, &si, st->codec->extradata); + avpriv_flac_parse_streaminfo(st->codec, &si, st->codec->extradata); /* set time base and duration */ if (si.samplerate > 0) { - av_set_pts_info(st, 64, 1, si.samplerate); + avpriv_set_pts_info(st, 64, 1, si.samplerate); if (si.samples > 0) st->duration = si.samples; } + } else if (metadata_type == FLAC_METADATA_TYPE_CUESHEET) { + uint8_t isrc[13]; + uint64_t start; + const uint8_t *offset; + int i, j, chapters, track, ti; + if (metadata_size < 431) + return AVERROR_INVALIDDATA; + offset = buffer + 395; + chapters = bytestream_get_byte(&offset) - 1; + if (chapters <= 0) + return AVERROR_INVALIDDATA; + for (i = 0; i < chapters; i++) { + if (offset + 36 - buffer > metadata_size) + return AVERROR_INVALIDDATA; + start = bytestream_get_be64(&offset); + track = bytestream_get_byte(&offset); + bytestream_get_buffer(&offset, isrc, 12); + isrc[12] = 0; + offset += 14; + ti = bytestream_get_byte(&offset); + if (ti <= 0) return AVERROR_INVALIDDATA; + for (j = 0; j < ti; j++) + offset += 12; + avpriv_new_chapter(s, track, st->time_base, start, AV_NOPTS_VALUE, isrc); + } } else { /* STREAMINFO must be the first block */ if (!found_streaminfo) {