mirror of https://github.com/FFmpeg/FFmpeg.git
Mark Thompson
7 years ago
parent
b5df289eb7
commit
308b989e0c
5 changed files with 191 additions and 0 deletions
@ -0,0 +1,162 @@ |
||||
/*
|
||||
* 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/avstring.h" |
||||
#include "libavutil/common.h" |
||||
#include "libavutil/opt.h" |
||||
|
||||
#include "bsf.h" |
||||
#include "cbs.h" |
||||
#include "cbs_vp9.h" |
||||
|
||||
typedef struct VP9MetadataContext { |
||||
const AVClass *class; |
||||
|
||||
CodedBitstreamContext *cbc; |
||||
CodedBitstreamFragment fragment; |
||||
|
||||
int color_space; |
||||
int color_range; |
||||
|
||||
int color_range_rgb_warned; |
||||
} VP9MetadataContext; |
||||
|
||||
|
||||
static int vp9_metadata_filter(AVBSFContext *bsf, AVPacket *out) |
||||
{ |
||||
VP9MetadataContext *ctx = bsf->priv_data; |
||||
AVPacket *in = NULL; |
||||
CodedBitstreamFragment *frag = &ctx->fragment; |
||||
int err, i; |
||||
|
||||
err = ff_bsf_get_packet(bsf, &in); |
||||
if (err < 0) |
||||
return err; |
||||
|
||||
err = ff_cbs_read_packet(ctx->cbc, frag, in); |
||||
if (err < 0) { |
||||
av_log(bsf, AV_LOG_ERROR, "Failed to read packet.\n"); |
||||
goto fail; |
||||
} |
||||
|
||||
for (i = 0; i < frag->nb_units; i++) { |
||||
VP9RawFrame *frame = frag->units[i].content; |
||||
VP9RawFrameHeader *header = &frame->header; |
||||
|
||||
if (ctx->color_space >= 0) { |
||||
header->color_space = ctx->color_space; |
||||
} |
||||
if (ctx->color_range >= 0) { |
||||
if (ctx->color_range == 0 && |
||||
header->color_space == VP9_CS_RGB && |
||||
!ctx->color_range_rgb_warned) { |
||||
av_log(bsf, AV_LOG_WARNING, "Warning: color_range cannot " |
||||
"be set to limited in RGB streams.\n"); |
||||
ctx->color_range_rgb_warned = 1; |
||||
} else { |
||||
header->color_range = ctx->color_range; |
||||
} |
||||
} |
||||
} |
||||
|
||||
err = ff_cbs_write_packet(ctx->cbc, out, frag); |
||||
if (err < 0) { |
||||
av_log(bsf, AV_LOG_ERROR, "Failed to write packet.\n"); |
||||
goto fail; |
||||
} |
||||
|
||||
err = av_packet_copy_props(out, in); |
||||
if (err < 0) |
||||
goto fail; |
||||
|
||||
err = 0; |
||||
fail: |
||||
ff_cbs_fragment_uninit(ctx->cbc, frag); |
||||
|
||||
if (err < 0) |
||||
av_packet_unref(out); |
||||
av_packet_free(&in); |
||||
|
||||
return err; |
||||
} |
||||
|
||||
static int vp9_metadata_init(AVBSFContext *bsf) |
||||
{ |
||||
VP9MetadataContext *ctx = bsf->priv_data; |
||||
|
||||
return ff_cbs_init(&ctx->cbc, AV_CODEC_ID_VP9, bsf); |
||||
} |
||||
|
||||
static void vp9_metadata_close(AVBSFContext *bsf) |
||||
{ |
||||
VP9MetadataContext *ctx = bsf->priv_data; |
||||
ff_cbs_close(&ctx->cbc); |
||||
} |
||||
|
||||
#define OFFSET(x) offsetof(VP9MetadataContext, x) |
||||
#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM) |
||||
static const AVOption vp9_metadata_options[] = { |
||||
{ "color_space", "Set colour space (section 7.2.2)", |
||||
OFFSET(color_space), AV_OPT_TYPE_INT, |
||||
{ .i64 = -1 }, -1, VP9_CS_RGB, FLAGS, "cs" }, |
||||
{ "unknown", "Unknown/unspecified", 0, AV_OPT_TYPE_CONST, |
||||
{ .i64 = VP9_CS_UNKNOWN }, .flags = FLAGS, .unit = "cs" }, |
||||
{ "bt601", "ITU-R BT.601-7", 0, AV_OPT_TYPE_CONST, |
||||
{ .i64 = VP9_CS_BT_601 }, .flags = FLAGS, .unit = "cs" }, |
||||
{ "bt709", "ITU-R BT.709-6", 0, AV_OPT_TYPE_CONST, |
||||
{ .i64 = VP9_CS_BT_709 }, .flags = FLAGS, .unit = "cs" }, |
||||
{ "smpte170", "SMPTE-170", 0, AV_OPT_TYPE_CONST, |
||||
{ .i64 = VP9_CS_SMPTE_170 }, .flags = FLAGS, .unit = "cs" }, |
||||
{ "smpte240", "SMPTE-240", 0, AV_OPT_TYPE_CONST, |
||||
{ .i64 = VP9_CS_SMPTE_240 }, .flags = FLAGS, .unit = "cs" }, |
||||
{ "bt2020", "ITU-R BT.2020-2", 0, AV_OPT_TYPE_CONST, |
||||
{ .i64 = VP9_CS_BT_2020 }, .flags = FLAGS, .unit = "cs" }, |
||||
{ "rgb", "sRGB / IEC 61966-2-1", 0, AV_OPT_TYPE_CONST, |
||||
{ .i64 = VP9_CS_RGB }, .flags = FLAGS, .unit = "cs" }, |
||||
|
||||
{ "color_range", "Set colour range (section 7.2.2)", |
||||
OFFSET(color_range), AV_OPT_TYPE_INT, |
||||
{ .i64 = -1 }, -1, 1, FLAGS, "cr" }, |
||||
{ "tv", "TV (limited) range", 0, AV_OPT_TYPE_CONST, |
||||
{ .i64 = 0 }, .flags = FLAGS, .unit = "cr" }, |
||||
{ "pc", "PC (full) range", 0, AV_OPT_TYPE_CONST, |
||||
{ .i64 = 1 }, .flags = FLAGS, .unit = "cr" }, |
||||
|
||||
{ NULL } |
||||
}; |
||||
|
||||
static const AVClass vp9_metadata_class = { |
||||
.class_name = "vp9_metadata_bsf", |
||||
.item_name = av_default_item_name, |
||||
.option = vp9_metadata_options, |
||||
.version = LIBAVUTIL_VERSION_INT, |
||||
}; |
||||
|
||||
static const enum AVCodecID vp9_metadata_codec_ids[] = { |
||||
AV_CODEC_ID_VP9, AV_CODEC_ID_NONE, |
||||
}; |
||||
|
||||
const AVBitStreamFilter ff_vp9_metadata_bsf = { |
||||
.name = "vp9_metadata", |
||||
.priv_data_size = sizeof(VP9MetadataContext), |
||||
.priv_class = &vp9_metadata_class, |
||||
.init = &vp9_metadata_init, |
||||
.close = &vp9_metadata_close, |
||||
.filter = &vp9_metadata_filter, |
||||
.codec_ids = vp9_metadata_codec_ids, |
||||
}; |
||||
Loading…
Reference in new issue