Signed-off-by: clarkh <hungkuish...@outlook.com>
---
libavcodec/Makefile | 1 +
libavcodec/parsers.c | 1 +
libavcodec/prores_parser.c | 107 +++++++++++++++++++++++++++++++++++++
libavformat/Makefile | 2 +
libavformat/allformats.c | 2 +
libavformat/proresdec.c | 66 +++++++++++++++++++++++
libavformat/rawenc.c | 13 +++++
7 files changed, 192 insertions(+)
create mode 100644 libavcodec/prores_parser.c
create mode 100644 libavformat/proresdec.c
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 1b0226c089..21cd28c9ac 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -1198,6 +1198,7 @@ OBJS-$(CONFIG_OPUS_PARSER) += opus_parser.o
opus_parse.o \
vorbis_data.o
OBJS-$(CONFIG_PNG_PARSER) += png_parser.o
OBJS-$(CONFIG_PNM_PARSER) += pnm_parser.o pnm.o
+OBJS-$(CONFIG_PRORES_PARSER) += prores_parser.o
OBJS-$(CONFIG_QOI_PARSER) += qoi_parser.o
OBJS-$(CONFIG_RV30_PARSER) += rv34_parser.o
OBJS-$(CONFIG_RV40_PARSER) += rv34_parser.o
diff --git a/libavcodec/parsers.c b/libavcodec/parsers.c
index 285f81a901..131867686a 100644
--- a/libavcodec/parsers.c
+++ b/libavcodec/parsers.c
@@ -64,6 +64,7 @@ extern const AVCodecParser ff_mpegvideo_parser;
extern const AVCodecParser ff_opus_parser;
extern const AVCodecParser ff_png_parser;
extern const AVCodecParser ff_pnm_parser;
+extern const AVCodecParser ff_prores_parser;
extern const AVCodecParser ff_qoi_parser;
extern const AVCodecParser ff_rv30_parser;
extern const AVCodecParser ff_rv40_parser;
diff --git a/libavcodec/prores_parser.c b/libavcodec/prores_parser.c
new file mode 100644
index 0000000000..a9e5b9e100
--- /dev/null
+++ b/libavcodec/prores_parser.c
@@ -0,0 +1,107 @@
+/*
+ * ProRes bitstream parser
+ * Copyright (c) 2023 clarkh <hungkuish...@outlook.com>
+ *
+ * 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
+ */
+
+#include "parser.h"
+#include "libavutil/intreadwrite.h"
+#include "libavcodec/proresdata.h"
+
+typedef struct {
+ ParseContext pc;
+ int remaining;
+ int overwrite;
+} ProResParserContext;
+
+static int prores_find_frame_end(ProResParserContext *pctx, const uint8_t
*buf, int buf_size)
+{
+ ParseContext *pc = &pctx->pc;
+ uint64_t state64 = pc->state64;
+ int pic_found = pc->frame_start_found;
+ int i = 0;
+
+ if (!pic_found) {
+ for (i = 0; i < buf_size; i++) {
+ state64 = (state64 << 8) | buf[i];
+ if ((state64 & 0xFFFFFFFF) == FRAME_ID) {
+ i++;
+ pic_found = 1;
+ pctx->remaining = state64 >> 32;
+ pctx->remaining -= pctx->overwrite;
+ break;
+ }
+ }
+ }
+
+ if (pic_found) {
+ if (!buf_size)
+ return END_NOT_FOUND;
+
+ if (pctx->remaining > buf_size) {
+ pctx->remaining -= buf_size;
+ } else {
+ int remaining = pctx->remaining;
+
+ pc->frame_start_found = 0;
+ pc->state64 = -1;
+ pctx->remaining = 0;
+ pctx->overwrite = 0;
+ return remaining;
+ }
+ } else {
+ pctx->overwrite += buf_size;
+ }
+
+ pc->frame_start_found = pic_found;
+ pc->state64 = state64;
+
+ return END_NOT_FOUND;
+}
+
+static int prores_parse(AVCodecParserContext *s, AVCodecContext *avctx,
+ const uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size)
+{
+ ProResParserContext *pctx = s->priv_data;
+ ParseContext *pc = &pctx->pc;
+ int next;
+
+ if (s->flags & PARSER_FLAG_COMPLETE_FRAMES) {
+ next = buf_size;
+ } else {
+ next = prores_find_frame_end(pctx, buf, buf_size);
+ if (ff_combine_frame(pc, next, &buf, &buf_size) < 0) {
+ *poutbuf = NULL;
+ *poutbuf_size = 0;
+ return buf_size;
+ }
+ }
+
+ *poutbuf = buf;
+ *poutbuf_size = buf_size;
+
+ return next;
+}
+
+const AVCodecParser ff_prores_parser = {
+ .codec_ids = { AV_CODEC_ID_PRORES },
+ .priv_data_size = sizeof(ProResParserContext),
+ .parser_parse = prores_parse,
+ .parser_close = ff_parse_close
+};
diff --git a/libavformat/Makefile b/libavformat/Makefile
index bd78c206b9..16def0765b 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -480,6 +480,8 @@ OBJS-$(CONFIG_PDV_DEMUXER) += pdvdec.o
OBJS-$(CONFIG_PJS_DEMUXER) += pjsdec.o subtitles.o
OBJS-$(CONFIG_PMP_DEMUXER) += pmpdec.o
OBJS-$(CONFIG_PP_BNK_DEMUXER) += pp_bnk.o
+OBJS-$(CONFIG_PRORES_DEMUXER) += proresdec.o rawdec.o
+OBJS-$(CONFIG_PRORES_MUXER) += rawenc.o
OBJS-$(CONFIG_PVA_DEMUXER) += pva.o
OBJS-$(CONFIG_PVF_DEMUXER) += pvfdec.o pcm.o
OBJS-$(CONFIG_QCP_DEMUXER) += qcp.o
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index 6324952bd2..0b762034ca 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -378,6 +378,8 @@ extern const AVInputFormat ff_pdv_demuxer;
extern const AVInputFormat ff_pjs_demuxer;
extern const AVInputFormat ff_pmp_demuxer;
extern const AVInputFormat ff_pp_bnk_demuxer;
+extern const AVInputFormat ff_prores_demuxer;
+extern const FFOutputFormat ff_prores_muxer;
extern const FFOutputFormat ff_psp_muxer;
extern const AVInputFormat ff_pva_demuxer;
extern const AVInputFormat ff_pvf_demuxer;
diff --git a/libavformat/proresdec.c b/libavformat/proresdec.c
new file mode 100644
index 0000000000..f81863a973
--- /dev/null
+++ b/libavformat/proresdec.c
@@ -0,0 +1,66 @@
+/*
+ * ProRes bitstream probe
+ * Copyright (c) 2023 clarkh <hungkuish...@outlook.com>
+ *
+ * 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
+ */
+
+#include "libavutil/intreadwrite.h"
+#include "libavcodec/proresdata.h"
+#include "avformat.h"
+#include "rawdec.h"
+
+#define FRAME_FIXED_HEADER_SIZE 20
+
+static int prores_check_frame_header(const uint8_t *buf, const int data_size)
+{
+ int hdr_size, width, height;
+ int version, alpha_info;
+
+ hdr_size = AV_RB16(buf);
+ if (hdr_size < FRAME_FIXED_HEADER_SIZE)
+ return AVERROR_INVALIDDATA;
+
+ version = buf[3];
+ if (version > 1)
+ return AVERROR_INVALIDDATA;
+
+ width = AV_RB16(buf + 8);
+ height = AV_RB16(buf + 10);
+ if (width < 16 || height < 16)
+ return AVERROR_INVALIDDATA;
+
+ alpha_info = buf[17] & 0x0f;
+ if (alpha_info > 2)
+ return AVERROR_INVALIDDATA;
+
+ return 0;
+}
+
+static int prores_probe(const AVProbeData *p)
+{
+ // 8: frame_size(4B) + frame_identifier(4B)
+ if (p->buf_size < (8 + FRAME_FIXED_HEADER_SIZE) || AV_RB32(p->buf + 4) !=
FRAME_ID)
+ return 0;
+
+ if (prores_check_frame_header(p->buf + 8, p->buf_size - 8) < 0)
+ return 0;
+
+ return AVPROBE_SCORE_MAX;
+}
+
+FF_DEF_RAWVIDEO_DEMUXER(prores, "raw ProRes", prores_probe, "prores",
AV_CODEC_ID_PRORES)
diff --git a/libavformat/rawenc.c b/libavformat/rawenc.c
index f916db13a2..28ca47ae70 100644
--- a/libavformat/rawenc.c
+++ b/libavformat/rawenc.c
@@ -538,6 +538,19 @@ const FFOutputFormat ff_obu_muxer = {
};
#endif
+#if CONFIG_PRORES_MUXER
+const FFOutputFormat ff_prores_muxer = {
+ .p.name = "prores",
+ .p.long_name = NULL_IF_CONFIG_SMALL("raw prores video"),
+ .p.extensions = "prores",
+ .p.audio_codec = AV_CODEC_ID_NONE,
+ .p.video_codec = AV_CODEC_ID_PRORES,
+ .init = force_one_stream,
+ .write_packet = ff_raw_write_packet,
+ .p.flags = AVFMT_NOTIMESTAMPS,
+};
+#endif
+
#if CONFIG_RAWVIDEO_MUXER
const FFOutputFormat ff_rawvideo_muxer = {
.p.name = "rawvideo",
--
2.34.1
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