[FFmpeg-devel] [PATCH v7 14/14] avcodec/libx265: add support for writing out CLL and MDCV
Jan Ekström
jeebjp at gmail.com
Thu Feb 29 18:43:01 EET 2024
The newer of these two are the separate integers for content light
level, introduced in 3952bf3e98c76c31594529a3fe34e056d3e3e2ea ,
with X265_BUILD 75. As we already require X265_BUILD of at least
89, no further conditions are required.
---
libavcodec/libx265.c | 88 ++++++++++++++++++++++++++++++++++++
tests/fate/enc_external.mak | 5 ++
tests/ref/fate/libx265-hdr10 | 16 +++++++
3 files changed, 109 insertions(+)
create mode 100644 tests/ref/fate/libx265-hdr10
diff --git a/libavcodec/libx265.c b/libavcodec/libx265.c
index 447e6da25f..8d366f51ab 100644
--- a/libavcodec/libx265.c
+++ b/libavcodec/libx265.c
@@ -28,9 +28,11 @@
#include <float.h>
#include "libavutil/avassert.h"
+#include "libavutil/bprint.h"
#include "libavutil/buffer.h"
#include "libavutil/internal.h"
#include "libavutil/common.h"
+#include "libavutil/mastering_display_metadata.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
@@ -179,6 +181,85 @@ static av_cold int libx265_param_parse_int(AVCodecContext *avctx,
return 0;
}
+static int handle_mdcv(const AVClass **avcl, const x265_api *api,
+ x265_param *params,
+ const AVMasteringDisplayMetadata *mdcv)
+{
+ int ret = AVERROR_BUG;
+ AVBPrint buf;
+ av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
+
+ // G(%hu,%hu)B(%hu,%hu)R(%hu,%hu)WP(%hu,%hu)L(%u,%u)
+ av_bprintf(
+ &buf,
+ "G(%"PRId64",%"PRId64")B(%"PRId64",%"PRId64")R(%"PRId64",%"PRId64")"
+ "WP(%"PRId64",%"PRId64")L(%"PRId64",%"PRId64")",
+ av_rescale_q(1, mdcv->display_primaries[1][0], (AVRational){ 1, 50000 }),
+ av_rescale_q(1, mdcv->display_primaries[1][1], (AVRational){ 1, 50000 }),
+ av_rescale_q(1, mdcv->display_primaries[2][0], (AVRational){ 1, 50000 }),
+ av_rescale_q(1, mdcv->display_primaries[2][1], (AVRational){ 1, 50000 }),
+ av_rescale_q(1, mdcv->display_primaries[0][0], (AVRational){ 1, 50000 }),
+ av_rescale_q(1, mdcv->display_primaries[0][1], (AVRational){ 1, 50000 }),
+ av_rescale_q(1, mdcv->white_point[0], (AVRational){ 1, 50000 }),
+ av_rescale_q(1, mdcv->white_point[1], (AVRational){ 1, 50000 }),
+ av_rescale_q(1, mdcv->max_luminance, (AVRational){ 1, 10000 }),
+ av_rescale_q(1, mdcv->min_luminance, (AVRational){ 1, 10000 }));
+
+ if (!av_bprint_is_complete(&buf)) {
+ av_log(avcl, AV_LOG_ERROR,
+ "MDCV string too long for its available space!\n");
+ ret = AVERROR(ENOMEM);
+ goto end;
+ }
+
+ if (api->param_parse(params, "master-display", buf.str) ==
+ X265_PARAM_BAD_VALUE) {
+ av_log(avcl, AV_LOG_ERROR,
+ "Invalid value \"%s\" for param \"master-display\".\n",
+ buf.str);
+ ret = AVERROR(EINVAL);
+ goto end;
+ }
+
+ ret = 0;
+
+end:
+ av_bprint_finalize(&buf, NULL);
+
+ return ret;
+}
+
+static int handle_side_data(AVCodecContext *avctx, const x265_api *api,
+ x265_param *params)
+{
+ const AVFrameSideData *cll_sd =
+ av_frame_side_data_get(
+ (const AVFrameSideData **)avctx->frame_side_data,
+ avctx->nb_frame_side_data, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);
+ const AVFrameSideData *mdcv_sd =
+ av_frame_side_data_get(
+ (const AVFrameSideData **)avctx->frame_side_data,
+ avctx->nb_frame_side_data, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);
+
+ if (cll_sd) {
+ const AVContentLightMetadata *cll =
+ (AVContentLightMetadata *)cll_sd->data;
+
+ params->maxCLL = cll->MaxCLL;
+ params->maxFALL = cll->MaxFALL;
+ }
+
+ if (mdcv_sd) {
+ int ret = handle_mdcv(
+ &avctx->av_class, api, params,
+ (AVMasteringDisplayMetadata *)mdcv_sd->data);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
static av_cold int libx265_encode_init(AVCodecContext *avctx)
{
libx265Context *ctx = avctx->priv_data;
@@ -339,6 +420,13 @@ FF_ENABLE_DEPRECATION_WARNINGS
return AVERROR_BUG;
}
+ ret = handle_side_data(avctx, ctx->api, ctx->params);
+ if (ret < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Failed handling side data! (%s)\n",
+ av_err2str(ret));
+ return ret;
+ }
+
if (ctx->crf >= 0) {
char crf[6];
diff --git a/tests/fate/enc_external.mak b/tests/fate/enc_external.mak
index 4095a4b51a..30021efbcd 100644
--- a/tests/fate/enc_external.mak
+++ b/tests/fate/enc_external.mak
@@ -12,5 +12,10 @@ FATE_ENC_EXTERNAL-$(call ENCDEC, LIBX264 HEVC, MOV, LIBX264_HDR10 HEVC_DEMUXER H
fate-libx264-hdr10: CMD = enc_external $(TARGET_SAMPLES)/hevc/hdr10_plus_h265_sample.hevc \
mp4 "-c:v libx264" "-show_frames -show_entries frame=side_data_list -of flat"
+# test for x265 MDCV and CLL passthrough during encoding
+FATE_ENC_EXTERNAL-$(call ENCDEC, LIBX265 HEVC, MOV, HEVC_DEMUXER) += fate-libx265-hdr10
+fate-libx265-hdr10: CMD = enc_external $(TARGET_SAMPLES)/hevc/hdr10_plus_h265_sample.hevc \
+ mp4 "-c:v libx265" "-show_frames -show_entries frame=side_data_list -of flat"
+
FATE_SAMPLES_FFMPEG_FFPROBE += $(FATE_ENC_EXTERNAL-yes)
fate-enc-external: $(FATE_ENC_EXTERNAL-yes)
diff --git a/tests/ref/fate/libx265-hdr10 b/tests/ref/fate/libx265-hdr10
new file mode 100644
index 0000000000..571c837cac
--- /dev/null
+++ b/tests/ref/fate/libx265-hdr10
@@ -0,0 +1,16 @@
+frames.frame.0.side_data_list.side_data.0.side_data_type="H.26[45] User Data Unregistered SEI message"
+frames.frame.0.side_data_list.side_data.1.side_data_type="H.26[45] User Data Unregistered SEI message"
+frames.frame.0.side_data_list.side_data.2.side_data_type="Mastering display metadata"
+frames.frame.0.side_data_list.side_data.2.red_x="13250/50000"
+frames.frame.0.side_data_list.side_data.2.red_y="34500/50000"
+frames.frame.0.side_data_list.side_data.2.green_x="7500/50000"
+frames.frame.0.side_data_list.side_data.2.green_y="3000/50000"
+frames.frame.0.side_data_list.side_data.2.blue_x="34000/50000"
+frames.frame.0.side_data_list.side_data.2.blue_y="16000/50000"
+frames.frame.0.side_data_list.side_data.2.white_point_x="15635/50000"
+frames.frame.0.side_data_list.side_data.2.white_point_y="16450/50000"
+frames.frame.0.side_data_list.side_data.2.min_luminance="50/10000"
+frames.frame.0.side_data_list.side_data.2.max_luminance="10000000/10000"
+frames.frame.0.side_data_list.side_data.3.side_data_type="Content light level metadata"
+frames.frame.0.side_data_list.side_data.3.max_content=1000
+frames.frame.0.side_data_list.side_data.3.max_average=200
--
2.44.0
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