[FFmpeg-devel] [PATCH] Add support for vp9 in iso-bmff
Kongqun Yang
yangkongqun at gmail.com
Sat Jun 11 00:25:54 CEST 2016
Implemented according to the draft specification
"VP Codec ISO Media File Format Binding":
http://www.webmproject.org/vp9/#draft-vp-codec-iso-media-file-format-binding
Change-Id: Iaa7ddf5524b17e8d79cd1923b26f096deeee6e91
---
libavformat/Makefile | 2 +-
libavformat/isom.c | 3 +
libavformat/movenc.c | 15 +++++
libavformat/vpx.c | 170 +++++++++++++++++++++++++++++++++++++++++++++++++++
libavformat/vpx.h | 33 ++++++++++
5 files changed, 222 insertions(+), 1 deletion(-)
create mode 100644 libavformat/vpx.c
create mode 100644 libavformat/vpx.h
diff --git a/libavformat/Makefile b/libavformat/Makefile
index 6684ead..33d6027 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -276,7 +276,7 @@ OBJS-$(CONFIG_MM_DEMUXER) += mm.o
OBJS-$(CONFIG_MMF_DEMUXER) += mmf.o
OBJS-$(CONFIG_MMF_MUXER) += mmf.o rawenc.o
OBJS-$(CONFIG_MOV_DEMUXER) += mov.o mov_chan.o replaygain.o
-OBJS-$(CONFIG_MOV_MUXER) += movenc.o avc.o hevc.o \
+OBJS-$(CONFIG_MOV_MUXER) += movenc.o avc.o hevc.o vpx.o \
movenchint.o mov_chan.o rtp.o \
movenccenc.o rawutils.o
OBJS-$(CONFIG_MP2_MUXER) += mp3enc.o rawenc.o id3v2enc.o
diff --git a/libavformat/isom.c b/libavformat/isom.c
index b1757e2..9a65268 100644
--- a/libavformat/isom.c
+++ b/libavformat/isom.c
@@ -59,6 +59,7 @@ const AVCodecTag ff_mp4_obj_type[] = {
{ AV_CODEC_ID_AC3 , 0xA5 },
{ AV_CODEC_ID_EAC3 , 0xA6 },
{ AV_CODEC_ID_DTS , 0xA9 }, /* mp4ra.org */
+ { AV_CODEC_ID_VP9 , 0xC0 }, /* non standard, update when there is a standard value */
{ AV_CODEC_ID_TSCC2 , 0xD0 }, /* non standard, camtasia uses it */
{ AV_CODEC_ID_VORBIS , 0xDD }, /* non standard, gpac uses it */
{ AV_CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* non standard, see unsupported-embedded-subs-2.mp4 */
@@ -179,6 +180,8 @@ const AVCodecTag ff_codec_movvideo_tags[] = {
{ AV_CODEC_ID_H264, MKTAG('a', 'i', 'v', 'x') }, /* XAVC 4:2:2 10bit */
{ AV_CODEC_ID_H264, MKTAG('r', 'v', '6', '4') }, /* X-Com Radvision */
+ { AV_CODEC_ID_VP9, MKTAG('v', 'p', '0', '9') }, /* VP9 */
+
{ AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', ' ') },
{ AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */
{ AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 2f00091..1471b12 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -49,6 +49,7 @@
#include "hevc.h"
#include "rtpenc.h"
#include "mov_chan.h"
+#include "vpx.h"
static const AVOption options[] = {
{ "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
@@ -1039,6 +1040,17 @@ static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
return update_size(pb, pos);
}
+static int mov_write_vpcc_tag(AVIOContext *pb, MOVTrack *track)
+{
+ int64_t pos = avio_tell(pb);
+
+ avio_wb32(pb, 0);
+ ffio_wfourcc(pb, "vpcC");
+ avio_wb32(pb, 0); /* version & flags */
+ ff_isom_write_vpcc(pb, track->par);
+ return update_size(pb, pos);
+}
+
static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
@@ -1143,6 +1155,7 @@ static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
if (track->par->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
else if (track->par->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
+ else if (track->par->codec_id == AV_CODEC_ID_VP9) tag = MKTAG('v','p','0','9');
else if (track->par->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
else if (track->par->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
else if (track->par->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
@@ -1758,6 +1771,8 @@ static int mov_write_video_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *tr
mov_write_avcc_tag(pb, track);
if (track->mode == MODE_IPOD)
mov_write_uuid_tag_ipod(pb);
+ } else if (track->par->codec_id == AV_CODEC_ID_VP9) {
+ mov_write_vpcc_tag(pb, track);
} else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
mov_write_dvc1_tag(pb, track);
else if (track->par->codec_id == AV_CODEC_ID_VP6F ||
diff --git a/libavformat/vpx.c b/libavformat/vpx.c
new file mode 100644
index 0000000..5125187
--- /dev/null
+++ b/libavformat/vpx.c
@@ -0,0 +1,170 @@
+/*
+ * VPX helper functions for muxers
+ *
+ * Copyright (c) 2016 Google Inc.
+ * Copyright (c) 2016 KongQun Yang (kqyang at google.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 "vpx.h"
+#include "libavutil/pixfmt.h"
+
+enum VpxColorSpace
+{
+ VPX_COLOR_SPACE_UNSPECIFIED = 0,
+ VPX_COLOR_SPACE_BT601 = 1,
+ VPX_COLOR_SPACE_BT709 = 2,
+ VPX_COLOR_SPACE_SMPTE_170 = 3,
+ VPX_COLOR_SPACE_SMPTE_240 = 4,
+ VPX_COLOR_SPACE_BT2020_NCL = 5,
+ VPX_COLOR_SPACE_BT2020_CL = 6,
+ VPX_COLOR_SPACE_RGB = 7,
+};
+
+static int get_vpx_color_space(enum AVColorSpace color_space)
+{
+ switch (color_space) {
+ case AVCOL_SPC_RGB:
+ return VPX_COLOR_SPACE_RGB;
+ case AVCOL_SPC_BT709:
+ return VPX_COLOR_SPACE_BT709;
+ case AVCOL_SPC_SMPTE170M:
+ return VPX_COLOR_SPACE_SMPTE_170;
+ case AVCOL_SPC_SMPTE240M:
+ return VPX_COLOR_SPACE_SMPTE_240;
+ case AVCOL_SPC_BT2020_NCL:
+ return VPX_COLOR_SPACE_BT2020_NCL;
+ case AVCOL_SPC_BT2020_CL:
+ return VPX_COLOR_SPACE_BT2020_CL;
+ default:
+ return VPX_COLOR_SPACE_UNSPECIFIED;
+ }
+}
+
+enum VPX_CHROMA_SUBSAMPLING
+{
+ VPX_SUBSAMPLING_420_VERTICAL = 0,
+ VPX_SUBSAMPLING_420_COLLOCATED_WITH_LUMA = 1,
+ VPX_SUBSAMPLING_422 = 2,
+ VPX_SUBSAMPLING_444 = 3,
+};
+
+static int get_vpx_chroma_subsampling(enum AVPixelFormat pixel_format,
+ enum AVChromaLocation chroma_location)
+{
+ switch (pixel_format) {
+ case AV_PIX_FMT_YUV420P:
+ case AV_PIX_FMT_YUV420P10LE:
+ case AV_PIX_FMT_YUV420P10BE:
+ case AV_PIX_FMT_YUV420P12LE:
+ case AV_PIX_FMT_YUV420P12BE:
+ if (chroma_location == AVCHROMA_LOC_LEFT)
+ return VPX_SUBSAMPLING_420_VERTICAL;
+ // Otherwise assume collocated.
+ return VPX_SUBSAMPLING_420_COLLOCATED_WITH_LUMA;
+ case AV_PIX_FMT_YUV422P:
+ case AV_PIX_FMT_YUV422P10LE:
+ case AV_PIX_FMT_YUV422P10BE:
+ case AV_PIX_FMT_YUV422P12LE:
+ case AV_PIX_FMT_YUV422P12BE:
+ return VPX_SUBSAMPLING_422;
+ case AV_PIX_FMT_YUV444P:
+ case AV_PIX_FMT_YUV444P10LE:
+ case AV_PIX_FMT_YUV444P10BE:
+ case AV_PIX_FMT_YUV444P12LE:
+ case AV_PIX_FMT_YUV444P12BE:
+ return VPX_SUBSAMPLING_444;
+ default:
+ av_log(NULL, AV_LOG_WARNING,
+ "Unspecified or unrecognized pix format. Assuming 4:2:0 "
+ "vertical.");
+ return VPX_SUBSAMPLING_420_VERTICAL;
+ }
+}
+
+static int get_bit_depth(enum AVPixelFormat pixel_format)
+{
+ switch (pixel_format) {
+ case AV_PIX_FMT_YUV420P:
+ case AV_PIX_FMT_YUV422P:
+ case AV_PIX_FMT_YUV444P:
+ return 8;
+ case AV_PIX_FMT_YUV420P10LE:
+ case AV_PIX_FMT_YUV420P10BE:
+ case AV_PIX_FMT_YUV422P10LE:
+ case AV_PIX_FMT_YUV422P10BE:
+ case AV_PIX_FMT_YUV444P10LE:
+ case AV_PIX_FMT_YUV444P10BE:
+ return 10;
+ case AV_PIX_FMT_YUV420P12LE:
+ case AV_PIX_FMT_YUV420P12BE:
+ case AV_PIX_FMT_YUV422P12LE:
+ case AV_PIX_FMT_YUV422P12BE:
+ case AV_PIX_FMT_YUV444P12LE:
+ case AV_PIX_FMT_YUV444P12BE:
+ return 12;
+ default:
+ // Defaults to 8.
+ av_log(NULL, AV_LOG_WARNING,
+ "Unspecified or unrecognized bit depth. Assuming 8.");
+ return 8;
+ }
+}
+
+static int get_vpx_transfer_function(
+ enum AVColorTransferCharacteristic transfer)
+{
+ return (transfer == AVCOL_TRC_SMPTEST2084) ? 1 : 0;
+}
+
+static int get_vpx_video_full_range_flag(enum AVColorRange color_range)
+{
+ return (color_range == AVCOL_RANGE_JPEG) ? 1 : 0;
+}
+
+int ff_isom_write_vpcc(AVIOContext *pb, AVCodecParameters *par)
+{
+ int profile = par->profile;
+ int level = par->level == FF_LEVEL_UNKNOWN ? 0 : par->level;
+ int bit_depth = get_bit_depth(par->format);
+ int vpx_color_space = get_vpx_color_space(par->color_space);
+ int vpx_chroma_subsampling =
+ get_vpx_chroma_subsampling(par->format, par->chroma_location);
+ int vpx_transfer_function = get_vpx_transfer_function(par->color_trc);
+ int vpx_video_full_range_flag =
+ get_vpx_video_full_range_flag(par->color_range);
+
+ if (profile == FF_PROFILE_UNKNOWN) {
+ if (vpx_chroma_subsampling == VPX_SUBSAMPLING_420_VERTICAL ||
+ vpx_chroma_subsampling == VPX_SUBSAMPLING_420_COLLOCATED_WITH_LUMA) {
+ profile = (bit_depth == 8) ? FF_PROFILE_VP9_0 : FF_PROFILE_VP9_2;
+ } else {
+ profile = (bit_depth == 8) ? FF_PROFILE_VP9_1 : FF_PROFILE_VP9_3;
+ }
+ }
+
+ avio_w8(pb, profile);
+ avio_w8(pb, level);
+ avio_w8(pb, (bit_depth << 4) | vpx_color_space);
+ avio_w8(pb, (vpx_chroma_subsampling << 4) | (vpx_transfer_function << 1) |
+ vpx_video_full_range_flag);
+
+ // vp9 does not have codec initialization data.
+ avio_wb16(pb, 0);
+ return 0;
+}
diff --git a/libavformat/vpx.h b/libavformat/vpx.h
new file mode 100644
index 0000000..10397ed
--- /dev/null
+++ b/libavformat/vpx.h
@@ -0,0 +1,33 @@
+/*
+ * VPX helper functions for muxers
+ *
+ * Copyright (c) 2016 Google Inc.
+ * Copyright (c) 2016 KongQun Yang (kqyang at google.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
+ */
+
+#ifndef AVFORMAT_VPX_H
+#define AVFORMAT_VPX_H
+
+#include <stdint.h>
+#include "avio.h"
+#include "libavcodec/avcodec.h"
+
+int ff_isom_write_vpcc(AVIOContext *pb, AVCodecParameters *par);
+
+#endif /* AVFORMAT_VPX_H */
--
2.8.0.rc3.226.g39d4020
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