diff options
author | Diego Biurrun <diego@biurrun.de> | 2012-07-10 20:32:41 +0400 |
---|---|---|
committer | Diego Biurrun <diego@biurrun.de> | 2012-07-12 13:11:23 +0400 |
commit | 8eea8fdcebfa4ceaeba8aa6d3e68d56268c5bdf9 (patch) | |
tree | 160b7141fa94203b31a9c2a830ac0c9f69a87bd3 /libavcodec/flacdec.c | |
parent | a519463366238a7ec05d2bb76c4a67f42cf60ece (diff) |
flac: Move flac functions shared between libraries to flac common code
This fixes a number of flac-related build dependencies.
Diffstat (limited to 'libavcodec/flacdec.c')
-rw-r--r-- | libavcodec/flacdec.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/libavcodec/flacdec.c b/libavcodec/flacdec.c index 89819e31fb..53070a348c 100644 --- a/libavcodec/flacdec.c +++ b/libavcodec/flacdec.c @@ -75,33 +75,6 @@ static const int64_t flac_channel_layouts[6] = { static void allocate_buffers(FLACContext *s); -int avpriv_flac_is_extradata_valid(AVCodecContext *avctx, - enum FLACExtradataFormat *format, - uint8_t **streaminfo_start) -{ - if (!avctx->extradata || avctx->extradata_size < FLAC_STREAMINFO_SIZE) { - av_log(avctx, AV_LOG_ERROR, "extradata NULL or too small.\n"); - return 0; - } - if (AV_RL32(avctx->extradata) != MKTAG('f','L','a','C')) { - /* extradata contains STREAMINFO only */ - if (avctx->extradata_size != FLAC_STREAMINFO_SIZE) { - av_log(avctx, AV_LOG_WARNING, "extradata contains %d bytes too many.\n", - FLAC_STREAMINFO_SIZE-avctx->extradata_size); - } - *format = FLAC_EXTRADATA_FORMAT_STREAMINFO; - *streaminfo_start = avctx->extradata; - } else { - if (avctx->extradata_size < 8+FLAC_STREAMINFO_SIZE) { - av_log(avctx, AV_LOG_ERROR, "extradata too small.\n"); - return 0; - } - *format = FLAC_EXTRADATA_FORMAT_FULL_HEADER; - *streaminfo_start = &avctx->extradata[8]; - } - return 1; -} - static void flac_set_bps(FLACContext *s) { enum AVSampleFormat req = s->avctx->request_sample_fmt; @@ -175,52 +148,6 @@ static void allocate_buffers(FLACContext *s) } } -void avpriv_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *s, - const uint8_t *buffer) -{ - GetBitContext gb; - init_get_bits(&gb, buffer, FLAC_STREAMINFO_SIZE*8); - - skip_bits(&gb, 16); /* skip min blocksize */ - s->max_blocksize = get_bits(&gb, 16); - if (s->max_blocksize < FLAC_MIN_BLOCKSIZE) { - av_log(avctx, AV_LOG_WARNING, "invalid max blocksize: %d\n", - s->max_blocksize); - s->max_blocksize = 16; - } - - skip_bits(&gb, 24); /* skip min frame size */ - s->max_framesize = get_bits_long(&gb, 24); - - s->samplerate = get_bits_long(&gb, 20); - s->channels = get_bits(&gb, 3) + 1; - s->bps = get_bits(&gb, 5) + 1; - - avctx->channels = s->channels; - avctx->sample_rate = s->samplerate; - avctx->bits_per_raw_sample = s->bps; - - s->samples = get_bits_long(&gb, 32) << 4; - s->samples |= get_bits(&gb, 4); - - skip_bits_long(&gb, 64); /* md5 sum */ - skip_bits_long(&gb, 64); /* md5 sum */ - - dump_headers(avctx, s); -} - -void avpriv_flac_parse_block_header(const uint8_t *block_header, - int *last, int *type, int *size) -{ - int tmp = bytestream_get_byte(&block_header); - if (last) - *last = tmp & 0x80; - if (type) - *type = tmp & 0x7F; - if (size) - *size = bytestream_get_be24(&block_header); -} - /** * Parse the STREAMINFO from an inline header. * @param s the flac decoding context |