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libavcodec/qsvenc: Add "slice" intra refresh type to qsvenc 

Add "slice" intra refresh type to h264_qsv and hevc_qsv. This type means
horizontal refresh by slices without overlapping. Also update the doc.

Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
This commit is contained in:
Wenbin Chen 2022-09-06 17:22:55 +08:00 committed by Haihao Xiang
parent d60f657a50
commit f3ba1458b6
3 changed files with 10 additions and 4 deletions
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12
doc/encoders.texi
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@ -3441,8 +3441,10 @@ Specifies intra refresh type. The major goal of intra refresh is improvement of
error resilience without significant impact on encoded bitstream size caused by
I frames. The SDK encoder achieves this by encoding part of each frame in
refresh cycle using intra MBs. @var{none} means no refresh. @var{vertical} means
vertical refresh, by column of MBs. To enable intra refresh, B frame should be
set to 0.
vertical refresh, by column of MBs. @var{horizontal} means horizontal refresh,
by rows of MBs. @var{slice} means horizontal refresh by slices without
overlapping. In case of @var{slice}, in_ref_cycle_size is ignored. To enable
intra refresh, B frame should be set to 0.
@item @var{int_ref_cycle_size}
Specifies number of pictures within refresh cycle starting from 2. 0 and 1 are
@ -3641,8 +3643,10 @@ Specifies intra refresh type. The major goal of intra refresh is improvement of
error resilience without significant impact on encoded bitstream size caused by
I frames. The SDK encoder achieves this by encoding part of each frame in
refresh cycle using intra MBs. @var{none} means no refresh. @var{vertical} means
vertical refresh, by column of MBs. To enable intra refresh, B frame should be
set to 0.
vertical refresh, by column of MBs. @var{horizontal} means horizontal refresh,
by rows of MBs. @var{slice} means horizontal refresh by slices without
overlapping. In case of @var{slice}, in_ref_cycle_size is ignored. To enable
intra refresh, B frame should be set to 0.
@item @var{int_ref_cycle_size}
Specifies number of pictures within refresh cycle starting from 2. 0 and 1 are

1
libavcodec/qsvenc_h264.c
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@ -140,6 +140,7 @@ static const AVOption options[] = {
{ "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, .flags = VE, "int_ref_type" },
{ "vertical", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, .flags = VE, "int_ref_type" },
{ "horizontal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, .flags = VE, "int_ref_type" },
{ "slice" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3 }, .flags = VE, "int_ref_type" },
{ "int_ref_cycle_size", "Number of frames in the intra refresh cycle", OFFSET(qsv.int_ref_cycle_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, UINT16_MAX, VE },
{ "int_ref_qp_delta", "QP difference for the refresh MBs", OFFSET(qsv.int_ref_qp_delta), AV_OPT_TYPE_INT, { .i64 = INT16_MIN }, INT16_MIN, INT16_MAX, VE },
{ "recovery_point_sei", "Insert recovery point SEI messages", OFFSET(qsv.recovery_point_sei), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },

1
libavcodec/qsvenc_hevc.c
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@ -271,6 +271,7 @@ static const AVOption options[] = {
{ "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, .flags = VE, "int_ref_type" },
{ "vertical", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, .flags = VE, "int_ref_type" },
{ "horizontal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, .flags = VE, "int_ref_type" },
{ "slice" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 3 }, .flags = VE, "int_ref_type" },
{ "int_ref_cycle_size", "Number of frames in the intra refresh cycle", OFFSET(qsv.int_ref_cycle_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, UINT16_MAX, VE },
{ "int_ref_qp_delta", "QP difference for the refresh MBs", OFFSET(qsv.int_ref_qp_delta), AV_OPT_TYPE_INT, { .i64 = INT16_MIN }, INT16_MIN, INT16_MAX, VE },
{ "int_ref_cycle_dist", "Distance between the beginnings of the intra-refresh cycles in frames", OFFSET(qsv.int_ref_cycle_dist), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT16_MAX, VE },