diff options
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | gst/mxf/mxfd10.c | 8 |
2 files changed, 15 insertions, 0 deletions
@@ -1,3 +1,10 @@ +2008-12-06 Sebastian Dröge <sebastian.droege@collabora.co.uk> + + * gst/mxf/mxfd10.c: (mxf_d10_sound_handle_essence_element): + Document decoding of the AES3 data and also skip the 32 bit + header in the beginning of every buffer, otherwise we get + one broken audio channel. + 2008-12-05 Sebastian Dröge <sebastian.droege@collabora.co.uk> * gst/mxf/mxfdemux.c: (gst_mxf_demux_reset_metadata), diff --git a/gst/mxf/mxfd10.c b/gst/mxf/mxfd10.c index 75e74008..d8d19099 100644 --- a/gst/mxf/mxfd10.c +++ b/gst/mxf/mxfd10.c @@ -118,10 +118,16 @@ mxf_d10_sound_handle_essence_element (const MXFUL * key, GstBuffer * buffer, indata = GST_BUFFER_DATA (buffer); outdata = GST_BUFFER_DATA (*outbuf); + /* Skip 32 bit header */ + indata += 4; + for (i = 0; i < nsamples; i++) { for (j = 0; j < channels; j++) { guint32 in = GST_READ_UINT32_LE (indata); + /* Remove first 4 and last 4 bits as they only + * contain status data. Shift the 24 bit samples + * to the correct width afterwards. */ if (width == 2) { in = (in >> 12) & 0xffff; GST_WRITE_UINT16_LE (outdata, in); @@ -132,6 +138,8 @@ mxf_d10_sound_handle_essence_element (const MXFUL * key, GstBuffer * buffer, indata += 4; outdata += width; } + /* There are always 8 channels but only the first + * ones contain valid data, skip the others */ indata += 4 * (8 - channels); } |