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Support live AMF QP ceiling updates in bundled FFmpeg

stream-multiview
evgeny 6 days ago
parent
commit
fe86a16cac
  1. 70
      tools/chatgui/ffmpeg/patches/ffmpeg-7.1.2-amf-live-qp.patch
  2. 7
      tools/chatgui/translations/chatgui_ru.ts

70
tools/chatgui/ffmpeg/patches/ffmpeg-7.1.2-amf-live-qp.patch

@ -0,0 +1,70 @@
--- a/libavcodec/amfenc.h
+++ b/libavcodec/amfenc.h
@@ -112,6 +112,8 @@
int aud;
int max_consecutive_b_frames;
int max_b_frames;
+ int utun_qp_max;
+ int utun_qp_applied;
int qvbr_quality_level;
int hw_high_motion_quality_boost;
--- a/libavcodec/amfenc_h264.c
+++ b/libavcodec/amfenc_h264.c
@@ -28,6 +28,7 @@
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
+ { "utun_qp_max", "Live QP ceiling", OFFSET(utun_qp_max), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
// Static
/// Usage
{ "usage", "Encoder Usage", OFFSET(usage), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, AMF_VIDEO_ENCODER_USAGE_LOW_LATENCY_HIGH_QUALITY, VE, .unit = "usage" },
--- a/libavcodec/amfenc_hevc.c
+++ b/libavcodec/amfenc_hevc.c
@@ -27,6 +27,7 @@
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
+ { "utun_qp_max", "Live QP ceiling", OFFSET(utun_qp_max), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
{ "usage", "Set the encoding usage", OFFSET(usage), AV_OPT_TYPE_INT, {.i64 = -1 }, -1, AMF_VIDEO_ENCODER_HEVC_USAGE_LOW_LATENCY_HIGH_QUALITY, VE, .unit = "usage" },
{ "transcoding", "Generic Transcoding", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_TRANSCODING }, 0, 0, VE, .unit = "usage" },
{ "ultralowlatency", "Ultra low latency usecase", 0, AV_OPT_TYPE_CONST, {.i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_ULTRA_LOW_LATENCY }, 0, 0, VE, .unit = "usage" },
--- a/libavcodec/amfenc.c
+++ b/libavcodec/amfenc.c
@@ -274,6 +274,7 @@
av_unused int ret;
ctx->hwsurfaces_in_queue = 0;
+ ctx->utun_qp_applied = -1;
ctx->hwsurfaces_in_queue_max = 16;
// configure AMF logger
@@ -680,6 +681,28 @@
}
} else if (!ctx->delayed_surface) { // submit frame
int hw_surface = 0;
+
+ if (ctx->utun_qp_max >= 0 && ctx->utun_qp_max != ctx->utun_qp_applied) {
+ const wchar_t *max_i, *max_p;
+ if (avctx->codec_id == AV_CODEC_ID_H264) {
+ max_i = AMF_VIDEO_ENCODER_MAX_QP;
+ max_p = AMF_VIDEO_ENCODER_MAX_QP;
+ } else if (avctx->codec_id == AV_CODEC_ID_HEVC) {
+ max_i = AMF_VIDEO_ENCODER_HEVC_MAX_QP_I;
+ max_p = AMF_VIDEO_ENCODER_HEVC_MAX_QP_P;
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "Live QP ceiling is unsupported for codec %d\n", avctx->codec_id);
+ return AVERROR(ENOSYS);
+ }
+ AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, max_i, ctx->utun_qp_max);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_EXTERNAL, "Live I QP ceiling failed: %d\n", res);
+ if (avctx->codec_id == AV_CODEC_ID_HEVC) {
+ AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, max_p, ctx->utun_qp_max);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_EXTERNAL, "Live P QP ceiling failed: %d\n", res);
+ }
+ ctx->utun_qp_applied = ctx->utun_qp_max;
+ av_log(avctx, AV_LOG_INFO, "Live QP ceiling applied qp=%d\n", ctx->utun_qp_max);
+ }
// prepare surface from frame
switch (frame->format) {

7
tools/chatgui/translations/chatgui_ru.ts

@ -3,6 +3,13 @@
<TS version="2.1" language="ru_RU" sourcelanguage="en_US">
<context>
<name>ChatGui</name>
<message><source>Maximum QP</source><translation>Верхний предел QP</translation></message>
<message><source>Adapt QP to the target bitrate</source><translation>Подстраивать QP под заданный битрейт</translation></message>
<message><source>Current QP ceiling: %1</source><translation>Текущий предел QP: %1</translation></message>
<message><source>Lower QP preserves more detail and may require a higher bitrate. Applies to H.264 and H.265.</source><translation>Меньший QP сохраняет больше деталей и может требовать большего битрейта. Для H.264 и H.265.</translation></message>
<message><source>Gradually raise the QP ceiling above the selected value when bitrate is too high, then return it. Requires live QP adjustment.</source><translation>При превышении битрейта плавно повышать предел QP выше выбранного, затем возвращать обратно. Нужна поддержка изменения QP во время трансляции.</translation></message>
<message><source>Select a maximum QP before enabling adaptation</source><translation>Выберите верхний предел QP перед включением адаптации</translation></message>
<message><source>QP adaptation is unavailable for this encoder. Disable adaptation or choose another codec.</source><translation>Этот кодировщик не поддерживает адаптацию QP. Отключите адаптацию или выберите другой кодек.</translation></message>
<message><source>Local network</source><translation>Локальная сеть</translation></message>
<message><source>Receive invitations from the local network</source><translation>Разрешить получать приглашения из локальной сети</translation></message>
<message><source>Broadcast presence on the local network</source><translation>Разрешить отправлять широковещательные объявления</translation></message>

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