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-rw-r--r--doc/bitstream_filters.texi66
-rw-r--r--libavcodec/Makefile1
-rw-r--r--libavcodec/bitstream_filters.c1
-rw-r--r--libavcodec/prores_metadata_bsf.c172
4 files changed, 240 insertions, 0 deletions
diff --git a/doc/bitstream_filters.texi b/doc/bitstream_filters.texi
index 53470c01ec..655a2c1e63 100644
--- a/doc/bitstream_filters.texi
+++ b/doc/bitstream_filters.texi
@@ -530,6 +530,72 @@ ffmpeg -i INPUT -c copy -bsf noise[=1] output.mkv
@section null
This bitstream filter passes the packets through unchanged.
+@section prores_metadata
+
+Modify color property metadata embedded in prores stream.
+
+@table @option
+@item color_primaries
+Set the color primaries.
+Available values are:
+
+@table @samp
+@item auto
+Keep the same color primaries property (default).
+
+@item unknown
+@item bt709
+@item bt470bg
+BT601 625
+
+@item smpte170m
+BT601 525
+
+@item bt2020
+@item smpte431
+DCI P3
+
+@item smpte432
+P3 D65
+
+@end table
+
+@item transfer_characteristics
+Set the color transfert.
+Available values are:
+
+@table @samp
+@item auto
+Keep the same transfer characteristics property (default).
+
+@item unknown
+@item bt709
+BT 601, BT 709, BT 2020
+@end table
+
+
+@item matrix_coefficients
+Set the matrix coefficient.
+Available values are:
+
+@table @samp
+@item auto
+Keep the same transfer characteristics property (default).
+
+@item unknown
+@item bt709
+@item smpte170m
+BT 601
+
+@item bt2020nc
+@end table
+@end table
+
+Set Rec709 colorspace for each frame of the file
+@example
+ffmpeg -i INPUT -c copy -bsf:v prores_metadata=color_primaries=bt709:color_trc=bt709:colorspace=bt709 output.mov
+@end example
+
@section remove_extra
Remove extradata from packets.
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 8643da8f2b..05be02ec7d 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -1081,6 +1081,7 @@ OBJS-$(CONFIG_MP3_HEADER_DECOMPRESS_BSF) += mp3_header_decompress_bsf.o \
OBJS-$(CONFIG_MPEG2_METADATA_BSF) += mpeg2_metadata_bsf.o
OBJS-$(CONFIG_NOISE_BSF) += noise_bsf.o
OBJS-$(CONFIG_NULL_BSF) += null_bsf.o
+OBJS-$(CONFIG_PRORES_METADATA_BSF) += prores_metadata_bsf.o
OBJS-$(CONFIG_REMOVE_EXTRADATA_BSF) += remove_extradata_bsf.o
OBJS-$(CONFIG_TEXT2MOVSUB_BSF) += movsub_bsf.o
OBJS-$(CONFIG_TRACE_HEADERS_BSF) += trace_headers_bsf.o
diff --git a/libavcodec/bitstream_filters.c b/libavcodec/bitstream_filters.c
index 96b1746a75..2a8598bac2 100644
--- a/libavcodec/bitstream_filters.c
+++ b/libavcodec/bitstream_filters.c
@@ -47,6 +47,7 @@ extern const AVBitStreamFilter ff_mpeg4_unpack_bframes_bsf;
extern const AVBitStreamFilter ff_mov2textsub_bsf;
extern const AVBitStreamFilter ff_noise_bsf;
extern const AVBitStreamFilter ff_null_bsf;
+extern const AVBitStreamFilter ff_prores_metadata_bsf;
extern const AVBitStreamFilter ff_remove_extradata_bsf;
extern const AVBitStreamFilter ff_text2movsub_bsf;
extern const AVBitStreamFilter ff_trace_headers_bsf;
diff --git a/libavcodec/prores_metadata_bsf.c b/libavcodec/prores_metadata_bsf.c
new file mode 100644
index 0000000000..cc7a2b89f4
--- /dev/null
+++ b/libavcodec/prores_metadata_bsf.c
@@ -0,0 +1,172 @@
+/*
+ * Prores Metadata bitstream filter
+ * Copyright (c) 2018 Jokyo Images
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Prores Metadata bitstream filter
+ * set frame colorspace property
+ */
+
+#include "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/opt.h"
+#include "bsf.h"
+
+typedef struct ProresMetadataContext {
+ const AVClass *class;
+
+ int color_primaries;
+ int transfer_characteristics;
+ int matrix_coefficients;
+} ProresMetadataContext;
+
+static int prores_metadata(AVBSFContext *bsf, AVPacket *pkt)
+{
+ ProresMetadataContext *ctx = bsf->priv_data;
+ int ret = 0;
+ int buf_size;
+ uint8_t *buf;
+
+ ret = ff_bsf_get_packet_ref(bsf, pkt);
+ if (ret < 0)
+ return ret;
+
+ ret = av_packet_make_writable(pkt);
+ if (ret < 0)
+ goto fail;
+
+ buf = pkt->data;
+ buf_size = pkt->size;
+
+ /* check start of the prores frame */
+ if (buf_size < 28) {
+ av_log(bsf, AV_LOG_ERROR, "not enough data in prores frame\n");
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+
+ if (AV_RL32(buf + 4) != AV_RL32("icpf")) {
+ av_log(bsf, AV_LOG_ERROR, "invalid frame header\n");
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+
+ if (AV_RB16(buf + 8) < 28) {
+ av_log(bsf, AV_LOG_ERROR, "invalid frame header size\n");
+ ret = AVERROR_INVALIDDATA;
+ goto fail;
+ }
+
+ /* set the new values */
+ if (ctx->color_primaries != -1)
+ buf[8+14] = ctx->color_primaries;
+ if (ctx->transfer_characteristics != -1)
+ buf[8+15] = ctx->transfer_characteristics;
+ if (ctx->matrix_coefficients != -1)
+ buf[8+16] = ctx->matrix_coefficients;
+
+fail:
+ if (ret < 0)
+ av_packet_unref(pkt);
+ return ret;
+}
+
+static const enum AVCodecID codec_ids[] = {
+ AV_CODEC_ID_PRORES, AV_CODEC_ID_NONE,
+};
+
+static int prores_metadata_init(AVBSFContext *bsf)
+{
+ ProresMetadataContext *ctx = bsf->priv_data;
+ /*! check options */
+ switch (ctx->color_primaries) {
+ case -1:
+ case 0:
+ case AVCOL_PRI_BT709:
+ case AVCOL_PRI_BT470BG:
+ case AVCOL_PRI_SMPTE170M:
+ case AVCOL_PRI_BT2020:
+ case AVCOL_PRI_SMPTE431:
+ case AVCOL_PRI_SMPTE432:
+ break;
+ default:
+ av_log(bsf, AV_LOG_ERROR, "Color primaries %d is not a valid value\n", ctx->color_primaries);
+ return AVERROR(EINVAL);
+ }
+
+ switch (ctx->matrix_coefficients) {
+ case -1:
+ case 0:
+ case AVCOL_PRI_BT709:
+ case AVCOL_SPC_SMPTE170M:
+ case AVCOL_SPC_BT2020_NCL:
+ break;
+ default:
+ av_log(bsf, AV_LOG_ERROR, "Colorspace %d is not a valid value\n", ctx->matrix_coefficients);
+ return AVERROR(EINVAL);
+ }
+
+ return 0;
+}
+
+#define OFFSET(x) offsetof(ProresMetadataContext, x)
+#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_BSF_PARAM)
+static const AVOption options[] = {
+ {"color_primaries", "select color primaries", OFFSET(color_primaries), AV_OPT_TYPE_INT, {.i64=-1}, -1, AVCOL_PRI_SMPTE432, FLAGS, "color_primaries"},
+ {"auto", "keep the same color primaries", 0, AV_OPT_TYPE_CONST, {.i64=-1}, INT_MIN, INT_MAX, FLAGS, "color_primaries"},
+ {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, INT_MIN, INT_MAX, FLAGS, "color_primaries"},
+ {"bt709", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_PRI_BT709}, INT_MIN, INT_MAX, FLAGS, "color_primaries"},
+ {"bt470bg", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_PRI_BT470BG}, INT_MIN, INT_MAX, FLAGS, "color_primaries"},
+ {"smpte170m", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_PRI_SMPTE170M}, INT_MIN, INT_MAX, FLAGS, "color_primaries"},
+ {"bt2020", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_PRI_BT2020}, INT_MIN, INT_MAX, FLAGS, "color_primaries"},
+ {"smpte431", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_PRI_SMPTE431}, INT_MIN, INT_MAX, FLAGS, "color_primaries"},
+ {"smpte432", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_PRI_SMPTE432}, INT_MIN, INT_MAX, FLAGS, "color_primaries"},
+
+ {"color_trc", "select color transfer", OFFSET(transfer_characteristics), AV_OPT_TYPE_INT, {.i64=-1}, -1, AVCOL_TRC_BT709, FLAGS, "color_trc"},
+ {"auto", "keep the same color transfer", 0, AV_OPT_TYPE_CONST, {.i64=-1}, INT_MIN, INT_MAX, FLAGS, "color_trc"},
+ {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, INT_MIN, INT_MAX, FLAGS, "color_trc"},
+ {"bt709", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_TRC_BT709}, INT_MIN, INT_MAX, FLAGS, "color_trc"},
+
+ {"colorspace", "select colorspace", OFFSET(matrix_coefficients), AV_OPT_TYPE_INT, {.i64=-1}, -1, AVCOL_SPC_BT2020_NCL, FLAGS, "colorspace"},
+ {"auto", "keep the same colorspace", 0, AV_OPT_TYPE_CONST, {.i64=-1}, INT_MIN, INT_MAX, FLAGS, "colorspace"},
+ {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, INT_MIN, INT_MAX, FLAGS, "colorspace"},
+ {"bt709", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_SPC_BT709}, INT_MIN, INT_MAX, FLAGS, "colorspace"},
+ {"smpte170m", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_SPC_SMPTE170M}, INT_MIN, INT_MAX, FLAGS, "colorspace"},
+ {"bt2020nc", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_SPC_BT2020_NCL}, INT_MIN, INT_MAX, FLAGS, "colorspace"},
+
+ { NULL },
+};
+
+static const AVClass prores_metadata_class = {
+ .class_name = "prores_metadata_bsf",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+const AVBitStreamFilter ff_prores_metadata_bsf = {
+ .name = "prores_metadata",
+ .init = prores_metadata_init,
+ .filter = prores_metadata,
+ .priv_data_size = sizeof(ProresMetadataContext),
+ .priv_class = &prores_metadata_class,
+ .codec_ids = codec_ids,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-01 05:44:04 +0000