This commit adds option for enabling SmartAccess Video (SAV)
in AMF encoders. SAV is an AMD hardware-specific feature which
enables the parallelization of encode and decode streams across
multiple Video Codec Engine (VCN) hardware instances.
Signed-off-by: Evgeny Pavlov <lucenti...@gmail.com>
---
libavcodec/amfenc.c | 11 +++++++++++
libavcodec/amfenc.h | 6 ++++++
libavcodec/amfenc_av1.c | 8 ++++++++
libavcodec/amfenc_h264.c | 8 ++++++++
libavcodec/amfenc_hevc.c | 8 ++++++++
5 files changed, 41 insertions(+)
diff --git a/libavcodec/amfenc.c b/libavcodec/amfenc.c
index 061859f85c..c48eb27056 100644
--- a/libavcodec/amfenc.c
+++ b/libavcodec/amfenc.c
@@ -369,6 +369,17 @@ static int amf_init_encoder(AVCodecContext *avctx)
res = ctx->factory->pVtbl->CreateComponent(ctx->factory, ctx->context,
codec_id, &ctx->encoder);
AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_ENCODER_NOT_FOUND,
"CreateComponent(%ls) failed with error %d\n", codec_id, res);
+ if (ctx->smart_access_video != -1) {
+ AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder,
AMF_PER_CODEC_OPTION(ENABLE_SMART_ACCESS_VIDEO), ctx->smart_access_video != 0);
+ if (res != AMF_OK) {
+ av_log(avctx, AV_LOG_ERROR, "The Smart Access Video is not
supported by AMF.\n");
+ if (ctx->smart_access_video != 0)
+ return AVERROR(ENOSYS);
+ } else {
+ av_log(avctx, AV_LOG_INFO, "The Smart Access Video (%d) is
set.\n", ctx->smart_access_video);
+ }
+ }
+
return 0;
}
diff --git a/libavcodec/amfenc.h b/libavcodec/amfenc.h
index 2dbd378ef8..9bb3278bc5 100644
--- a/libavcodec/amfenc.h
+++ b/libavcodec/amfenc.h
@@ -89,6 +89,7 @@ typedef struct AmfContext {
int quality;
int b_frame_delta_qp;
int ref_b_frame_delta_qp;
+ int smart_access_video;
// Dynamic options, can be set after Init() call
@@ -179,4 +180,9 @@ extern const enum AVPixelFormat ff_amf_pix_fmts[];
return ret_value; \
}
+#define AMF_PER_CODEC_OPTION(name) \
+ (avctx->codec->id == AV_CODEC_ID_AV1 ? AMF_VIDEO_ENCODER_AV1_ ## name : \
+ avctx->codec->id == AV_CODEC_ID_HEVC ? AMF_VIDEO_ENCODER_HEVC_ ## name : \
+ AMF_VIDEO_ENCODER_ ## name)
+
#endif //AVCODEC_AMFENC_H
diff --git a/libavcodec/amfenc_av1.c b/libavcodec/amfenc_av1.c
index 3f164ccc59..06ce566f39 100644
--- a/libavcodec/amfenc_av1.c
+++ b/libavcodec/amfenc_av1.c
@@ -104,6 +104,8 @@ static const AVOption options[] = {
{ "log_to_dbg", "Enable AMF logging to debug output",
OFFSET(log_to_dbg), AV_OPT_TYPE_BOOL,{.i64 = 0 }, 0, 1, VE },
+ { "smart_access_video", "Enable parallelization of encode and decode
streams across multiple VCN hardware instances", OFFSET(smart_access_video),
AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE},
+
//Pre Analysis options
{ "preanalysis", "Enable preanalysis",
OFFSET(preanalysis),
AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE },
@@ -243,6 +245,12 @@ FF_ENABLE_DEPRECATION_WARNINGS
}
}
+ // Set low latency mode if Smart Access Video is enabled
+ if (ctx->smart_access_video == 1) {
+ AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder,
AMF_VIDEO_ENCODER_AV1_ENCODING_LATENCY_MODE,
AMF_VIDEO_ENCODER_AV1_ENCODING_LATENCY_MODE_LOWEST_LATENCY);
+ av_log(avctx, AV_LOG_INFO, "The Smart Access Video set low latency
mode.\n");
+ }
+
// Pre-Pass, Pre-Analysis, Two-Pass
if (ctx->rate_control_mode ==
AMF_VIDEO_ENCODER_AV1_RATE_CONTROL_METHOD_CONSTANT_QP) {
AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder,
AMF_VIDEO_ENCODER_AV1_RATE_CONTROL_PREENCODE, 0);
diff --git a/libavcodec/amfenc_h264.c b/libavcodec/amfenc_h264.c
index bd544d12df..9b36a8b088 100644
--- a/libavcodec/amfenc_h264.c
+++ b/libavcodec/amfenc_h264.c
@@ -136,6 +136,8 @@ static const AVOption options[] = {
{ "log_to_dbg", "Enable AMF logging to debug output",
OFFSET(log_to_dbg) , AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
+ { "smart_access_video", "Enable parallelization of encode and decode
streams across multiple VCN hardware instances", OFFSET(smart_access_video),
AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE},
+
//Pre Analysis options
{ "preanalysis", "Enable preanalysis",
OFFSET(preanalysis),
AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE },
@@ -353,6 +355,12 @@ FF_ENABLE_DEPRECATION_WARNINGS
av_log(ctx, AV_LOG_WARNING, "rate control mode is PEAK_CONSTRAINED_VBR
but rc_max_rate is not set\n");
}
+ // Set low latency mode if Smart Access Video is enabled
+ if (ctx->smart_access_video == 1) {
+ AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder,
AMF_VIDEO_ENCODER_LOWLATENCY_MODE, true);
+ av_log(avctx, AV_LOG_INFO, "The Smart Access Video set low latency
mode.\n");
+ }
+
if (ctx->preanalysis != -1) {
AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder,
AMF_VIDEO_ENCODER_PRE_ANALYSIS_ENABLE, !!((ctx->preanalysis == 0) ? false :
true));
}
diff --git a/libavcodec/amfenc_hevc.c b/libavcodec/amfenc_hevc.c
index 352564a301..7ccac37d15 100644
--- a/libavcodec/amfenc_hevc.c
+++ b/libavcodec/amfenc_hevc.c
@@ -99,6 +99,8 @@ static const AVOption options[] = {
{ "log_to_dbg", "Enable AMF logging to debug output",
OFFSET(log_to_dbg), AV_OPT_TYPE_BOOL,{ .i64 = 0 }, 0, 1, VE },
+ { "smart_access_video", "Enable parallelization of encode and decode
streams across multiple VCN hardware instances", OFFSET(smart_access_video),
AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE},
+
//Pre Analysis options
{ "preanalysis", "Enable preanalysis",
OFFSET(preanalysis),
AV_OPT_TYPE_BOOL, {.i64 = -1 }, -1, 1, VE },
@@ -241,6 +243,12 @@ FF_ENABLE_DEPRECATION_WARNINGS
}
}
+ // Set low latency mode if Smart Access Video is enabled
+ if (ctx->smart_access_video != -1 && ctx->smart_access_video != 0) {
+ AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder,
AMF_VIDEO_ENCODER_HEVC_LOWLATENCY_MODE, true);
+ av_log(avctx, AV_LOG_INFO, "The Smart Access Video set low latency
mode.\n");
+ }
+
// Pre-Pass, Pre-Analysis, Two-Pass
if (ctx->rate_control_mode ==
AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CONSTANT_QP) {
AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder,
AMF_VIDEO_ENCODER_HEVC_PREENCODE_ENABLE, 0);
--
2.42.0
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