FFmpeg
vp9_metadata_bsf.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "libavutil/avstring.h"
20 #include "libavutil/common.h"
21 #include "libavutil/opt.h"
22 
23 #include "bsf.h"
24 #include "cbs.h"
25 #include "cbs_bsf.h"
26 #include "cbs_vp9.h"
27 
28 typedef struct VP9MetadataContext {
30 
33 
36 
37 
40 {
42  int i;
43 
44  for (i = 0; i < frag->nb_units; i++) {
45  VP9RawFrame *frame = frag->units[i].content;
46  VP9RawFrameHeader *header = &frame->header;
47  int profile = (header->profile_high_bit << 1) + header->profile_low_bit;
48 
49  if (header->frame_type == VP9_KEY_FRAME ||
50  header->intra_only && profile > 0) {
51  if (ctx->color_space >= 0) {
52  if (!(profile & 1) && ctx->color_space == VP9_CS_RGB) {
53  if (!(ctx->color_warnings & 2)) {
54  av_log(bsf, AV_LOG_WARNING, "Warning: RGB "
55  "incompatible with profiles 0 and 2.\n");
56  ctx->color_warnings |= 2;
57  }
58  } else
59  header->color_space = ctx->color_space;
60  }
61 
62  if (ctx->color_range >= 0)
63  header->color_range = ctx->color_range;
64  if (header->color_space == VP9_CS_RGB) {
65  if (!(ctx->color_warnings & 1) && !header->color_range) {
66  av_log(bsf, AV_LOG_WARNING, "Warning: Color space RGB "
67  "implicitly sets color range to PC range.\n");
68  ctx->color_warnings |= 1;
69  }
70  header->color_range = 1;
71  }
72  } else if (!(ctx->color_warnings & 4) && header->intra_only && !profile &&
73  ctx->color_space >= 0 && ctx->color_space != VP9_CS_BT_601) {
74  av_log(bsf, AV_LOG_WARNING, "Warning: Intra-only frames in "
75  "profile 0 are automatically BT.601.\n");
76  ctx->color_warnings |= 4;
77  }
78  }
79 
80  return 0;
81 }
82 
83 static const CBSBSFType vp9_metadata_type = {
85  .fragment_name = "superframe",
86  .unit_name = "frame",
87  .update_fragment = &vp9_metadata_update_fragment,
88 };
89 
91 {
93 }
94 
95 #define OFFSET(x) offsetof(VP9MetadataContext, x)
96 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_BSF_PARAM)
97 static const AVOption vp9_metadata_options[] = {
98  { "color_space", "Set colour space (section 7.2.2)",
99  OFFSET(color_space), AV_OPT_TYPE_INT,
100  { .i64 = -1 }, -1, VP9_CS_RGB, FLAGS, "cs" },
101  { "unknown", "Unknown/unspecified", 0, AV_OPT_TYPE_CONST,
102  { .i64 = VP9_CS_UNKNOWN }, .flags = FLAGS, .unit = "cs" },
103  { "bt601", "ITU-R BT.601-7", 0, AV_OPT_TYPE_CONST,
104  { .i64 = VP9_CS_BT_601 }, .flags = FLAGS, .unit = "cs" },
105  { "bt709", "ITU-R BT.709-6", 0, AV_OPT_TYPE_CONST,
106  { .i64 = VP9_CS_BT_709 }, .flags = FLAGS, .unit = "cs" },
107  { "smpte170", "SMPTE-170", 0, AV_OPT_TYPE_CONST,
108  { .i64 = VP9_CS_SMPTE_170 }, .flags = FLAGS, .unit = "cs" },
109  { "smpte240", "SMPTE-240", 0, AV_OPT_TYPE_CONST,
110  { .i64 = VP9_CS_SMPTE_240 }, .flags = FLAGS, .unit = "cs" },
111  { "bt2020", "ITU-R BT.2020-2", 0, AV_OPT_TYPE_CONST,
112  { .i64 = VP9_CS_BT_2020 }, .flags = FLAGS, .unit = "cs" },
113  { "rgb", "sRGB / IEC 61966-2-1", 0, AV_OPT_TYPE_CONST,
114  { .i64 = VP9_CS_RGB }, .flags = FLAGS, .unit = "cs" },
115 
116  { "color_range", "Set colour range (section 7.2.2)",
118  { .i64 = -1 }, -1, 1, FLAGS, "cr" },
119  { "tv", "TV (limited) range", 0, AV_OPT_TYPE_CONST,
120  { .i64 = 0 }, .flags = FLAGS, .unit = "cr" },
121  { "pc", "PC (full) range", 0, AV_OPT_TYPE_CONST,
122  { .i64 = 1 }, .flags = FLAGS, .unit = "cr" },
123 
124  { NULL }
125 };
126 
127 static const AVClass vp9_metadata_class = {
128  .class_name = "vp9_metadata_bsf",
129  .item_name = av_default_item_name,
130  .option = vp9_metadata_options,
131  .version = LIBAVUTIL_VERSION_INT,
132 };
133 
134 static const enum AVCodecID vp9_metadata_codec_ids[] = {
136 };
137 
139  .name = "vp9_metadata",
140  .priv_data_size = sizeof(VP9MetadataContext),
141  .priv_class = &vp9_metadata_class,
143  .close = &ff_cbs_bsf_generic_close,
146 };
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
ff_cbs_bsf_generic_init
int ff_cbs_bsf_generic_init(AVBSFContext *bsf, const CBSBSFType *type)
Initialise generic CBS BSF setup.
Definition: cbs_bsf.c:110
opt.h
vp9_metadata_codec_ids
static enum AVCodecID vp9_metadata_codec_ids[]
Definition: vp9_metadata_bsf.c:134
CBSBSFType::codec_id
enum AVCodecID codec_id
Definition: cbs_bsf.h:32
VP9_CS_SMPTE_240
@ VP9_CS_SMPTE_240
Definition: cbs_vp9.h:61
CodedBitstreamUnit::content
void * content
Pointer to the decomposed form of this unit.
Definition: cbs.h:106
AVBitStreamFilter::name
const char * name
Definition: bsf.h:91
profile
mfxU16 profile
Definition: qsvenc.c:45
VP9_CS_BT_601
@ VP9_CS_BT_601
Definition: cbs_vp9.h:58
AVOption
AVOption.
Definition: opt.h:247
CBSBSFContext
Definition: cbs_bsf.h:53
cbs.h
filter
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
Definition: filter_design.txt:228
VP9_KEY_FRAME
@ VP9_KEY_FRAME
Definition: cbs_vp9.h:44
VP9MetadataContext::common
CBSBSFContext common
Definition: vp9_metadata_bsf.c:29
VP9MetadataContext::color_range
int color_range
Definition: vp9_metadata_bsf.c:32
AVBSFContext
The bitstream filter state.
Definition: bsf.h:47
VP9_CS_UNKNOWN
@ VP9_CS_UNKNOWN
Definition: cbs_vp9.h:57
VP9_CS_BT_709
@ VP9_CS_BT_709
Definition: cbs_vp9.h:59
bsf.h
cbs_bsf.h
CodedBitstreamFragment::units
CodedBitstreamUnit * units
Pointer to an array of units of length nb_units_allocated.
Definition: cbs.h:167
VP9MetadataContext
Definition: vp9_metadata_bsf.c:28
pkt
AVPacket * pkt
Definition: movenc.c:59
vp9_metadata_update_fragment
static int vp9_metadata_update_fragment(AVBSFContext *bsf, AVPacket *pkt, CodedBitstreamFragment *frag)
Definition: vp9_metadata_bsf.c:38
CodedBitstreamFragment
Coded bitstream fragment structure, combining one or more units.
Definition: cbs.h:121
ff_vp9_metadata_bsf
const AVBitStreamFilter ff_vp9_metadata_bsf
Definition: vp9_metadata_bsf.c:138
VP9_CS_BT_2020
@ VP9_CS_BT_2020
Definition: cbs_vp9.h:62
AV_CODEC_ID_VP9
@ AV_CODEC_ID_VP9
Definition: codec_id.h:218
cbs_vp9.h
ctx
AVFormatContext * ctx
Definition: movenc.c:48
VP9RawFrameHeader
Definition: cbs_vp9.h:83
vp9_metadata_init
static int vp9_metadata_init(AVBSFContext *bsf)
Definition: vp9_metadata_bsf.c:90
color_range
color_range
Definition: vf_selectivecolor.c:44
vp9_metadata_class
static const AVClass vp9_metadata_class
Definition: vp9_metadata_bsf.c:127
if
if(ret)
Definition: filter_design.txt:179
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
vp9_metadata_options
static const AVOption vp9_metadata_options[]
Definition: vp9_metadata_bsf.c:97
VP9MetadataContext::color_space
int color_space
Definition: vp9_metadata_bsf.c:31
VP9RawFrame
Definition: cbs_vp9.h:164
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:47
CBSBSFType
Definition: cbs_bsf.h:31
ff_cbs_bsf_generic_close
void ff_cbs_bsf_generic_close(AVBSFContext *bsf)
Close a generic CBS BSF instance.
Definition: cbs_bsf.c:150
VP9_CS_SMPTE_170
@ VP9_CS_SMPTE_170
Definition: cbs_vp9.h:60
header
static const uint8_t header[24]
Definition: sdr2.c:67
FLAGS
#define FLAGS
Definition: vp9_metadata_bsf.c:96
OFFSET
#define OFFSET(x)
Definition: vp9_metadata_bsf.c:95
AV_CODEC_ID_NONE
@ AV_CODEC_ID_NONE
Definition: codec_id.h:48
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:271
VP9MetadataContext::color_warnings
int color_warnings
Definition: vp9_metadata_bsf.c:34
common.h
VP9_CS_RGB
@ VP9_CS_RGB
Definition: cbs_vp9.h:64
AVBSFContext::priv_data
void * priv_data
Opaque filter-specific private data.
Definition: bsf.h:62
ff_cbs_bsf_generic_filter
int ff_cbs_bsf_generic_filter(AVBSFContext *bsf, AVPacket *pkt)
Filter operation for CBS BSF.
Definition: cbs_bsf.c:61
AVClass::class_name
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:71
frame
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
Definition: filter_design.txt:264
AVBitStreamFilter
Definition: bsf.h:90
vp9_metadata_type
static const CBSBSFType vp9_metadata_type
Definition: vp9_metadata_bsf.c:83
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
codec_ids
static enum AVCodecID codec_ids[]
Definition: aac_adtstoasc_bsf.c:148
AVPacket
This structure stores compressed data.
Definition: packet.h:350
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
avstring.h
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:233
CodedBitstreamFragment::nb_units
int nb_units
Number of units in this fragment.
Definition: cbs.h:152