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decoder: hevc: Workaround to recognize wrongly encoded main profile streams

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HACK: This is a work-around to identify some main profile streams having wrong profile_idc.
There are some wrongly encoded main profile streams(eg: ENTP_C_LG_3.bin) which doesn't
have any of the profile_idc values mentioned in Annex-A, instead general_profile_idc
has been set as zero and having general_profile_compatibility_flag[general_profile_idc]
is TRUE. Assuming them as MAIN profile for now.

https://bugzilla.gnome.org/show_bug.cgi?id=753226

Signed-off-by: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
This commit is contained in:
Sreerenj Balachandran 2015-08-07 08:43:44 +03:00
parent 869facf3bc
commit 95b8ca0cda
1 changed files with 17 additions and 3 deletions
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18
gst-libs/gst/vaapi/gstvaapidecoder_h265.c
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@ -608,7 +608,8 @@ get_max_dec_frame_buffering (GstH265SPS * sps)
/* Fixme: Add limit check based on Annex A */
/* Assuming HighestTid as sps_max_sub_layers_minus1 */
return MAX (1, (sps->max_dec_pic_buffering_minus1[sps->max_sub_layers_minus1] + 1));
return MAX (1,
(sps->max_dec_pic_buffering_minus1[sps->max_sub_layers_minus1] + 1));
}
static void
@ -1022,8 +1023,21 @@ get_profile (GstVaapiDecoderH265 * decoder, GstH265SPS * sps, guint dpb_size)
profile =
gst_vaapi_utils_h265_get_profile (sps->profile_tier_level.profile_idc);
if (!profile)
if (!profile) {
/* HACK: This is a work-around to identify some main profile streams having wrong profile_idc.
* There are some wrongly encoded main profile streams(eg: ENTP_C_LG_3.bin) which doesn't
* have any of the profile_idc values mentioned in Annex-A, instead general_profile_idc
* has been set as zero and having general_profile_compatibility_flag[general_profile_idc]
* is TRUE. Assuming them as MAIN profile for now */
if (sps->profile_tier_level.profile_space == 0 &&
sps->profile_tier_level.profile_idc == 0 &&
sps->profile_tier_level.profile_compatibility_flag[0] == 1) {
GST_WARNING ("Wrong profile_idc, blindly setting it as main profile !!");
profile = GST_VAAPI_PROFILE_H265_MAIN;
} else
return GST_VAAPI_PROFILE_UNKNOWN;
}
fill_profiles (profiles, &n_profiles, profile);
switch (profile) {
case GST_VAAPI_PROFILE_H265_MAIN10: