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h264: drop extra code covered by built-in codecparsers.

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GstH264SliceHdr.n_emulation_prevention_bytes is bound to exist now that
a newer version of codecparsers/ are used if the system provided one is
now recent enough to have those required extensions.
This commit is contained in:
Gwenole Beauchesne 2012-10-16 16:46:17 +02:00
parent d42d838388
commit 26b7c46eda
1 changed files with 0 additions and 25 deletions
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25
gst-libs/gst/vaapi/gstvaapidecoder_h264.c
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@ -1975,37 +1975,12 @@ decode_picture_end(GstVaapiDecoderH264 *decoder, GstVaapiPictureH264 *picture)
return TRUE; return TRUE;
} }
#ifndef HAVE_GST_H264_SLICE_HDR_EPB_COUNT
static guint
get_epb_count(const guint8 *buf, guint buf_size, guint header_size)
{
guint i, n = 0;
if (buf_size > header_size)
buf_size = header_size;
for (i = 2; i < buf_size; i++) {
if (!buf[i - 2] && !buf[i - 1] && buf[i] == 0x03)
i += 2, n++;
}
return n;
}
#endif
static inline guint static inline guint
get_slice_data_bit_offset(GstH264SliceHdr *slice_hdr, GstH264NalUnit *nalu) get_slice_data_bit_offset(GstH264SliceHdr *slice_hdr, GstH264NalUnit *nalu)
{ {
guint epb_count; guint epb_count;
#ifdef HAVE_GST_H264_SLICE_HDR_EPB_COUNT
epb_count = slice_hdr->n_emulation_prevention_bytes; epb_count = slice_hdr->n_emulation_prevention_bytes;
#else
epb_count = get_epb_count(
nalu->data + nalu->offset,
nalu->size,
slice_hdr->header_size / 8
);
#endif
return 8 /* nal_unit_type */ + slice_hdr->header_size - epb_count * 8; return 8 /* nal_unit_type */ + slice_hdr->header_size - epb_count * 8;
} }