diff options
| author | Diego Biurrun | 2017-04-26 18:57:54 +0200 |
|---|---|---|
| committer | Diego Biurrun | 2017-05-02 18:50:34 +0200 |
| commit | b5f19f7478492307e4b4763aeac3180faf50e17f (patch) | |
| tree | 0fb69992023b946295a3130e2066256e3caf88fe /libavformat/spdifdec.c | |
| parent | 0ac1fec1c3dacedabbf3dd4122ef4bf8523e688c (diff) | |
aac: Split function to parse ADTS header data into public and private part
This makes the currently semi-public avpriv_aac_parse_header() function
private to libavcodec and adds a proper public API function to return
the parts of the ADTS header required in libavformat.
Diffstat (limited to 'libavformat/spdifdec.c')
| -rw-r--r-- | libavformat/spdifdec.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/libavformat/spdifdec.c b/libavformat/spdifdec.c index 7c212353f1..38692c27e6 100644 --- a/libavformat/spdifdec.c +++ b/libavformat/spdifdec.c @@ -25,18 +25,22 @@ * @author Anssi Hannula */ +#include "libavutil/bswap.h" + +#include "libavcodec/ac3.h" +#include "libavcodec/adts_parser.h" + #include "avformat.h" #include "spdif.h" -#include "libavcodec/ac3.h" -#include "libavcodec/aacadtsdec.h" static int spdif_get_offset_and_codec(AVFormatContext *s, enum IEC61937DataType data_type, const char *buf, int *offset, enum AVCodecID *codec) { - AACADTSHeaderInfo aac_hdr; - GetBitContext gbc; + uint32_t samples; + uint8_t frames; + int ret; switch (data_type & 0xff) { case IEC61937_AC3: @@ -56,13 +60,13 @@ static int spdif_get_offset_and_codec(AVFormatContext *s, *codec = AV_CODEC_ID_MP3; break; case IEC61937_MPEG2_AAC: - init_get_bits(&gbc, buf, AAC_ADTS_HEADER_SIZE * 8); - if (avpriv_aac_parse_header(&gbc, &aac_hdr)) { + ret = av_adts_header_parse(buf, &samples, &frames); + if (ret < 0) { if (s) /* be silent during a probe */ av_log(s, AV_LOG_ERROR, "Invalid AAC packet in IEC 61937\n"); - return AVERROR_INVALIDDATA; + return ret; } - *offset = aac_hdr.samples << 2; + *offset = samples << 2; *codec = AV_CODEC_ID_AAC; break; case IEC61937_MPEG2_LAYER1_LSF: @@ -100,7 +104,7 @@ static int spdif_get_offset_and_codec(AVFormatContext *s, } /* Largest offset between bursts we currently handle, i.e. AAC with - aac_hdr.samples = 4096 */ + samples = 4096 */ #define SPDIF_MAX_OFFSET 16384 static int spdif_probe(AVProbeData *p) @@ -127,7 +131,7 @@ static int spdif_probe(AVProbeData *p) } else consecutive_codes = 0; - if (buf + 4 + AAC_ADTS_HEADER_SIZE > p->buf + p->buf_size) + if (buf + 4 + AV_AAC_ADTS_HEADER_SIZE > p->buf + p->buf_size) break; /* continue probing to find more sync codes */ |