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vaapi_h264: Add source version identifier as unregistered SEI

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Contains the libavcodec version, the VAAPI version and the libva
driver vendor string.
This commit is contained in:
Mark Thompson 2016-05-18 10:19:07 +01:00
parent 48e2967cd5
commit 02fa1ad926
1 changed files with 29 additions and 0 deletions
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29
libavcodec/vaapi_encode_h264.c
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@ -606,6 +606,30 @@ static void vaapi_encode_h264_write_pic_timing(PutBitContext *pbc,
}
}
static void vaapi_encode_h264_write_identifier(PutBitContext *pbc,
VAAPIEncodeContext *ctx,
VAAPIEncodePicture *pic)
{
const char *lavc = LIBAVCODEC_IDENT;
const char *vaapi = VA_VERSION_S;
const char *driver = vaQueryVendorString(ctx->hwctx->display);
char tmp[256];
int i;
// Random (version 4) ISO 11578 UUID.
uint8_t uuid[16] = {
0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf,
0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,
};
for (i = 0; i < 16; i++)
u(8, uuid[i], uuid_iso_iec_11578);
snprintf(tmp, sizeof(tmp), "%s / VAAPI %s / %s", lavc, vaapi, driver);
for (i = 0; i < sizeof(tmp) && tmp[i]; i++)
u(8, tmp[i], user_data_payload_byte);
}
static void vaapi_encode_h264_write_sei(PutBitContext *pbc,
VAAPIEncodeContext *ctx,
VAAPIEncodePicture *pic)
@ -633,6 +657,11 @@ static void vaapi_encode_h264_write_sei(PutBitContext *pbc,
continue;
write_payload = &vaapi_encode_h264_write_pic_timing;
break;
case SEI_TYPE_USER_DATA_UNREGISTERED:
if (pic->encode_order != 0)
continue;
write_payload = &vaapi_encode_h264_write_identifier;
break;
default:
continue;
}