[FFmpeg-devel] [PATCH 07/10, v3] avcodec/amfenc: add smart access video option
Dmitrii Ovchinnikov
ovchinnikov.dmitrii at gmail.com
Thu May 30 16:08:23 EEST 2024
From: Evgeny Pavlov <lucenticus at gmail.com>
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 <lucenticus at gmail.com>
---
libavcodec/amfenc.h | 1 +
libavcodec/amfenc_av1.c | 18 ++++++++++++++++++
libavcodec/amfenc_h264.c | 18 ++++++++++++++++++
libavcodec/amfenc_hevc.c | 18 ++++++++++++++++++
4 files changed, 55 insertions(+)
diff --git a/libavcodec/amfenc.h b/libavcodec/amfenc.h
index 62736ef579..1bda0136bd 100644
--- a/libavcodec/amfenc.h
+++ b/libavcodec/amfenc.h
@@ -90,6 +90,7 @@ 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
diff --git a/libavcodec/amfenc_av1.c b/libavcodec/amfenc_av1.c
index cc48e93fcb..7d37a242fc 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 Smart Access Video", 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 },
@@ -265,6 +267,22 @@ FF_ENABLE_DEPRECATION_WARNINGS
}
}
+ if (ctx->smart_access_video != -1) {
+ AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_AV1_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);
+ // Set low latency mode if Smart Access Video is enabled
+ if (ctx->smart_access_video != 0) {
+ 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 ad5fcc9ecb..a26a6dbef8 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 Smart Access Video", 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 },
@@ -369,6 +371,22 @@ 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");
}
+ if (ctx->smart_access_video != -1) {
+ AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_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);
+ // Set low latency mode if Smart Access Video is enabled
+ if (ctx->smart_access_video != 0) {
+ 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 a89a3cf20c..8c26956513 100644
--- a/libavcodec/amfenc_hevc.c
+++ b/libavcodec/amfenc_hevc.c
@@ -100,6 +100,8 @@ 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 Smart Access Video", 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 },
@@ -265,6 +267,22 @@ FF_ENABLE_DEPRECATION_WARNINGS
}
}
+ if (ctx->smart_access_video != -1) {
+ AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_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);
+ // Set low latency mode if Smart Access Video is enabled
+ if (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);
--
2.39.3 (Apple Git-146)
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