Re: [FFmpeg-devel] [PATCH] Add spherical_mapping command-line argument to ffmpeg.

[Vittorio Giovara]

On Mon, Jun 5, 2017 at 4:46 PM Aaron Colwell  wrote
> Attached a new patch that fixes a bug and the indentation in the previous
> patch. This should be good now. Sorry for the spam.
>
> Aaron
>
> On Mon, Jun 5, 2017 at 12:32 PM Aaron Colwell  wrote:
> [...]

Yeah this version looks much better, thanks for the update.
-- 
Vittorio
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Re: [FFmpeg-devel] [PATCH] Add spherical_mapping command-line argument to ffmpeg.

[Aaron Colwell]

Attached a new patch that fixes a bug and the indentation in the previous
patch. This should be good now. Sorry for the spam.

Aaron

On Mon, Jun 5, 2017 at 12:32 PM Aaron Colwell  wrote:

> Comments below..
>
> On Mon, Jun 5, 2017 at 12:02 PM Vittorio Giovara <
> vittorio.giov...@gmail.com> wrote:
>
>> Hey Aaron
>> > This allows adding AVSphericalMapping information to files
>> > that don't already have it.
>> > ---
>> >  ffmpeg.h  |   3 ++
>> >  ffmpeg_opt.c  |  29 -
>> >  libavutil/spherical.c | 113
>> ++
>> >  libavutil/spherical.h |  14 +++
>> >  4 files changed, 158 insertions(+), 1 deletion(-)
>> >
>> > diff --git a/ffmpeg.h b/ffmpeg.h
>> > index a806445e0d..43a28d874f 100644
>> > --- a/ffmpeg.h
>> > +++ b/ffmpeg.h
>> > @@ -44,6 +44,7 @@
>> >  #include "libavutil/fifo.h"
>> >  #include "libavutil/pixfmt.h"
>> >  #include "libavutil/rational.h"
>> > +#include "libavutil/spherical.h"
>> >  #include "libavutil/threadmessage.h"
>> >
>> >  #include "libswresample/swresample.h"
>> > @@ -228,6 +229,8 @@ typedef struct OptionsContext {
>> >  intnb_time_bases;
>> >  SpecifierOpt *enc_time_bases;
>> >  intnb_enc_time_bases;
>> > +SpecifierOpt *spherical_mappings;
>> > +intnb_spherical_mappings;
>> >  } OptionsContext;
>> >
>> >  typedef struct InputFilter {
>> > diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
>> > index c997ea8faf..666b3791b7 100644
>> > --- a/ffmpeg_opt.c
>> > +++ b/ffmpeg_opt.c
>> > @@ -1514,12 +1514,29 @@ static void
>> check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
>> >  }
>> >  }
>> >
>> > +static int set_spherical_mapping(const char* opt, AVStream* st) {
>> > +  size_t spherical_mapping_size = 0;
>> > +  AVSphericalMapping *spherical_mapping = NULL;
>> > +
>> > +  int ret = av_spherical_parse_option(opt, _mapping,
>> > +  _mapping_size);
>> > +  if (ret >= 0) {
>> > +ret = av_stream_add_side_data(st, AV_PKT_DATA_SPHERICAL,
>> spherical_mapping, spherical_mapping_size);
>> > +
>> > +if (ret < 0) {
>> > +  av_freep(_mapping);
>> > +}
>> > +  }
>> > +
>> > +  return ret;
>> > +}
>> > +
>> >  static OutputStream *new_video_stream(OptionsContext *o,
>> AVFormatContext *oc, int source_index)
>> >  {
>> >  AVStream *st;
>> >  OutputStream *ost;
>> >  AVCodecContext *video_enc;
>> > -char *frame_rate = NULL, *frame_aspect_ratio = NULL;
>> > +char *frame_rate = NULL, *frame_aspect_ratio = NULL,
>> *spherical_mapping = NULL;
>> >
>> >  ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
>> >  st  = ost->st;
>> > @@ -1546,6 +1563,12 @@ static OutputStream
>> *new_video_stream(OptionsContext *o, AVFormatContext *oc, in
>> >
>> >  MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc,
>> st);
>> >  MATCH_PER_STREAM_OPT(filters,str, ost->filters,oc,
>> st);
>> > +MATCH_PER_STREAM_OPT(spherical_mappings, str, spherical_mapping,
>> oc, st);
>> > +
>> > +if (spherical_mapping && set_spherical_mapping(spherical_mapping,
>> st) < 0) {
>> > +av_log(NULL, AV_LOG_FATAL, "Invalid spherical_mapping: %s\n",
>> spherical_mapping);
>> > +exit_program(1);
>> > +}
>> >
>> >  if (!ost->stream_copy) {
>> >  const char *p = NULL;
>> > @@ -3569,6 +3592,10 @@ const OptionDef options[] = {
>> >  "automatically insert correct rotate filters" },
>> >  { "hwaccel_lax_profile_check", OPT_BOOL | OPT_EXPERT,
>>   { _lax_profile_check},
>> >  "attempt to decode anyway if HW accelerated decoder's
>> supported profiles do not exactly match the stream" },
>> > +{ "spherical_mapping", OPT_VIDEO | HAS_ARG  | OPT_STRING |
>> OPT_SPEC |
>> > +   OPT_OUTPUT,
>>{ .off = OFFSET(spherical_mappings) },
>> > +"set spherical mapping for video stream", "spherical_mapping"
>> },
>> > +
>> >
>> >  /* audio options */
>> >  { "aframes",OPT_AUDIO | HAS_ARG  | OPT_PERFILE |
>> OPT_OUTPUT,   { .func_arg = opt_audio_frames },
>>
>> this part looks ok
>>
>> > diff --git a/libavutil/spherical.c b/libavutil/spherical.c
>> > index 4be55f36cf..508584d61f 100644
>> > --- a/libavutil/spherical.c
>> > +++ b/libavutil/spherical.c
>> > @@ -19,6 +19,7 @@
>> >   */
>> >
>> >  #include "mem.h"
>> > +#include "opt.h"
>> >  #include "spherical.h"
>> >
>> >  AVSphericalMapping *av_spherical_alloc(size_t *size)
>> > @@ -77,3 +78,115 @@ int av_spherical_from_name(const char *name)
>> >
>> >  return -1;
>> >  }
>> > +
>> > +static const char *spherical_mapping_context_to_name(void *ptr)
>> > +{
>> > +return "spherical_mapping";
>> > +}
>> > +
>> > +typedef struct {
>> > +const AVClass* spherical_class;
>> > +int projection;
>> > +
>> > +double yaw;
>> > +double pitch;
>> > +double roll;
>> > +
>> > +int64_t 

Re: [FFmpeg-devel] [PATCH] Add spherical_mapping command-line argument to ffmpeg.

[Aaron Colwell]

Comments below..

On Mon, Jun 5, 2017 at 12:02 PM Vittorio Giovara 
wrote:

> Hey Aaron
> > This allows adding AVSphericalMapping information to files
> > that don't already have it.
> > ---
> >  ffmpeg.h  |   3 ++
> >  ffmpeg_opt.c  |  29 -
> >  libavutil/spherical.c | 113
> ++
> >  libavutil/spherical.h |  14 +++
> >  4 files changed, 158 insertions(+), 1 deletion(-)
> >
> > diff --git a/ffmpeg.h b/ffmpeg.h
> > index a806445e0d..43a28d874f 100644
> > --- a/ffmpeg.h
> > +++ b/ffmpeg.h
> > @@ -44,6 +44,7 @@
> >  #include "libavutil/fifo.h"
> >  #include "libavutil/pixfmt.h"
> >  #include "libavutil/rational.h"
> > +#include "libavutil/spherical.h"
> >  #include "libavutil/threadmessage.h"
> >
> >  #include "libswresample/swresample.h"
> > @@ -228,6 +229,8 @@ typedef struct OptionsContext {
> >  intnb_time_bases;
> >  SpecifierOpt *enc_time_bases;
> >  intnb_enc_time_bases;
> > +SpecifierOpt *spherical_mappings;
> > +intnb_spherical_mappings;
> >  } OptionsContext;
> >
> >  typedef struct InputFilter {
> > diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
> > index c997ea8faf..666b3791b7 100644
> > --- a/ffmpeg_opt.c
> > +++ b/ffmpeg_opt.c
> > @@ -1514,12 +1514,29 @@ static void
> check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
> >  }
> >  }
> >
> > +static int set_spherical_mapping(const char* opt, AVStream* st) {
> > +  size_t spherical_mapping_size = 0;
> > +  AVSphericalMapping *spherical_mapping = NULL;
> > +
> > +  int ret = av_spherical_parse_option(opt, _mapping,
> > +  _mapping_size);
> > +  if (ret >= 0) {
> > +ret = av_stream_add_side_data(st, AV_PKT_DATA_SPHERICAL,
> spherical_mapping, spherical_mapping_size);
> > +
> > +if (ret < 0) {
> > +  av_freep(_mapping);
> > +}
> > +  }
> > +
> > +  return ret;
> > +}
> > +
> >  static OutputStream *new_video_stream(OptionsContext *o,
> AVFormatContext *oc, int source_index)
> >  {
> >  AVStream *st;
> >  OutputStream *ost;
> >  AVCodecContext *video_enc;
> > -char *frame_rate = NULL, *frame_aspect_ratio = NULL;
> > +char *frame_rate = NULL, *frame_aspect_ratio = NULL,
> *spherical_mapping = NULL;
> >
> >  ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
> >  st  = ost->st;
> > @@ -1546,6 +1563,12 @@ static OutputStream
> *new_video_stream(OptionsContext *o, AVFormatContext *oc, in
> >
> >  MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc,
> st);
> >  MATCH_PER_STREAM_OPT(filters,str, ost->filters,oc,
> st);
> > +MATCH_PER_STREAM_OPT(spherical_mappings, str, spherical_mapping,
> oc, st);
> > +
> > +if (spherical_mapping && set_spherical_mapping(spherical_mapping,
> st) < 0) {
> > +av_log(NULL, AV_LOG_FATAL, "Invalid spherical_mapping: %s\n",
> spherical_mapping);
> > +exit_program(1);
> > +}
> >
> >  if (!ost->stream_copy) {
> >  const char *p = NULL;
> > @@ -3569,6 +3592,10 @@ const OptionDef options[] = {
> >  "automatically insert correct rotate filters" },
> >  { "hwaccel_lax_profile_check", OPT_BOOL | OPT_EXPERT,
>   { _lax_profile_check},
> >  "attempt to decode anyway if HW accelerated decoder's supported
> profiles do not exactly match the stream" },
> > +{ "spherical_mapping", OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC
> |
> > +   OPT_OUTPUT,
>  { .off = OFFSET(spherical_mappings) },
> > +"set spherical mapping for video stream", "spherical_mapping" },
> > +
> >
> >  /* audio options */
> >  { "aframes",OPT_AUDIO | HAS_ARG  | OPT_PERFILE |
> OPT_OUTPUT,   { .func_arg = opt_audio_frames },
>
> this part looks ok
>
> > diff --git a/libavutil/spherical.c b/libavutil/spherical.c
> > index 4be55f36cf..508584d61f 100644
> > --- a/libavutil/spherical.c
> > +++ b/libavutil/spherical.c
> > @@ -19,6 +19,7 @@
> >   */
> >
> >  #include "mem.h"
> > +#include "opt.h"
> >  #include "spherical.h"
> >
> >  AVSphericalMapping *av_spherical_alloc(size_t *size)
> > @@ -77,3 +78,115 @@ int av_spherical_from_name(const char *name)
> >
> >  return -1;
> >  }
> > +
> > +static const char *spherical_mapping_context_to_name(void *ptr)
> > +{
> > +return "spherical_mapping";
> > +}
> > +
> > +typedef struct {
> > +const AVClass* spherical_class;
> > +int projection;
> > +
> > +double yaw;
> > +double pitch;
> > +double roll;
> > +
> > +int64_t bound_left;
> > +int64_t bound_top;
> > +int64_t bound_right;
> > +int64_t bound_bottom;
> > +
> > +int64_t padding;
> > +} SphericalMappingContext;
> > +
> > +#define OFFSET(x) offsetof(SphericalMappingContext, x)
> > +#define DEFAULT 0
> > +#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
> > +
> > +static const AVOption spherical_mapping_options[] = {
> > 

Re: [FFmpeg-devel] [PATCH] Add spherical_mapping command-line argument to ffmpeg.

[Vittorio Giovara]

Hey Aaron
> This allows adding AVSphericalMapping information to files
> that don't already have it.
> ---
>  ffmpeg.h  |   3 ++
>  ffmpeg_opt.c  |  29 -
>  libavutil/spherical.c | 113 
> ++
>  libavutil/spherical.h |  14 +++
>  4 files changed, 158 insertions(+), 1 deletion(-)
>
> diff --git a/ffmpeg.h b/ffmpeg.h
> index a806445e0d..43a28d874f 100644
> --- a/ffmpeg.h
> +++ b/ffmpeg.h
> @@ -44,6 +44,7 @@
>  #include "libavutil/fifo.h"
>  #include "libavutil/pixfmt.h"
>  #include "libavutil/rational.h"
> +#include "libavutil/spherical.h"
>  #include "libavutil/threadmessage.h"
>
>  #include "libswresample/swresample.h"
> @@ -228,6 +229,8 @@ typedef struct OptionsContext {
>  intnb_time_bases;
>  SpecifierOpt *enc_time_bases;
>  intnb_enc_time_bases;
> +SpecifierOpt *spherical_mappings;
> +intnb_spherical_mappings;
>  } OptionsContext;
>
>  typedef struct InputFilter {
> diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
> index c997ea8faf..666b3791b7 100644
> --- a/ffmpeg_opt.c
> +++ b/ffmpeg_opt.c
> @@ -1514,12 +1514,29 @@ static void check_streamcopy_filters(OptionsContext 
> *o, AVFormatContext *oc,
>  }
>  }
>
> +static int set_spherical_mapping(const char* opt, AVStream* st) {
> +  size_t spherical_mapping_size = 0;
> +  AVSphericalMapping *spherical_mapping = NULL;
> +
> +  int ret = av_spherical_parse_option(opt, _mapping,
> +  _mapping_size);
> +  if (ret >= 0) {
> +ret = av_stream_add_side_data(st, AV_PKT_DATA_SPHERICAL, 
> spherical_mapping, spherical_mapping_size);
> +
> +if (ret < 0) {
> +  av_freep(_mapping);
> +}
> +  }
> +
> +  return ret;
> +}
> +
>  static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext 
> *oc, int source_index)
>  {
>  AVStream *st;
>  OutputStream *ost;
>  AVCodecContext *video_enc;
> -char *frame_rate = NULL, *frame_aspect_ratio = NULL;
> +char *frame_rate = NULL, *frame_aspect_ratio = NULL, *spherical_mapping 
> = NULL;
>
>  ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
>  st  = ost->st;
> @@ -1546,6 +1563,12 @@ static OutputStream *new_video_stream(OptionsContext 
> *o, AVFormatContext *oc, in
>
>  MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
>  MATCH_PER_STREAM_OPT(filters,str, ost->filters,oc, st);
> +MATCH_PER_STREAM_OPT(spherical_mappings, str, spherical_mapping, oc, st);
> +
> +if (spherical_mapping && set_spherical_mapping(spherical_mapping, st) < 
> 0) {
> +av_log(NULL, AV_LOG_FATAL, "Invalid spherical_mapping: %s\n", 
> spherical_mapping);
> +exit_program(1);
> +}
>
>  if (!ost->stream_copy) {
>  const char *p = NULL;
> @@ -3569,6 +3592,10 @@ const OptionDef options[] = {
>  "automatically insert correct rotate filters" },
>  { "hwaccel_lax_profile_check", OPT_BOOL | OPT_EXPERT,
> { _lax_profile_check},
>  "attempt to decode anyway if HW accelerated decoder's supported 
> profiles do not exactly match the stream" },
> +{ "spherical_mapping", OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
> +   OPT_OUTPUT,   
> { .off = OFFSET(spherical_mappings) },
> +"set spherical mapping for video stream", "spherical_mapping" },
> +
>
>  /* audio options */
>  { "aframes",OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT, 
>   { .func_arg = opt_audio_frames },

this part looks ok

> diff --git a/libavutil/spherical.c b/libavutil/spherical.c
> index 4be55f36cf..508584d61f 100644
> --- a/libavutil/spherical.c
> +++ b/libavutil/spherical.c
> @@ -19,6 +19,7 @@
>   */
>
>  #include "mem.h"
> +#include "opt.h"
>  #include "spherical.h"
>
>  AVSphericalMapping *av_spherical_alloc(size_t *size)
> @@ -77,3 +78,115 @@ int av_spherical_from_name(const char *name)
>
>  return -1;
>  }
> +
> +static const char *spherical_mapping_context_to_name(void *ptr)
> +{
> +return "spherical_mapping";
> +}
> +
> +typedef struct {
> +const AVClass* spherical_class;
> +int projection;
> +
> +double yaw;
> +double pitch;
> +double roll;
> +
> +int64_t bound_left;
> +int64_t bound_top;
> +int64_t bound_right;
> +int64_t bound_bottom;
> +
> +int64_t padding;
> +} SphericalMappingContext;
> +
> +#define OFFSET(x) offsetof(SphericalMappingContext, x)
> +#define DEFAULT 0
> +#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
> +
> +static const AVOption spherical_mapping_options[] = {
> +{ "projection", "projection", OFFSET(projection), AV_OPT_TYPE_INT,
> +{ .i64 = -1 }, -1, AV_SPHERICAL_EQUIRECTANGULAR_TILE, FLAGS, 
> "projection" },
> +{ "equirectangular", "equirectangular projection", OFFSET(projection), 
> AV_OPT_TYPE_CONST,
> +{ .i64 = AV_SPHERICAL_EQUIRECTANGULAR }, INT_MIN, 

[FFmpeg-devel] [PATCH] Add spherical_mapping command-line argument to ffmpeg.

[Aaron Colwell]

Add spherical_mapping command-line argument to ffmpeg.

This allows adding AVSphericalMapping information to files
that don't already have it.
From eaa84a5f86d37e7de8bd0d6f72a308af57f3ef1d Mon Sep 17 00:00:00 2001
From: Aaron Colwell 
Date: Fri, 2 Jun 2017 16:11:21 -0700
Subject: [PATCH] Add spherical_mapping command-line argument to ffmpeg.

This allows adding AVSphericalMapping information to files
that don't already have it.
---
 ffmpeg.h  |   3 ++
 ffmpeg_opt.c  |  29 -
 libavutil/spherical.c | 113 ++
 libavutil/spherical.h |  14 +++
 4 files changed, 158 insertions(+), 1 deletion(-)

diff --git a/ffmpeg.h b/ffmpeg.h
index a806445e0d..43a28d874f 100644
--- a/ffmpeg.h
+++ b/ffmpeg.h
@@ -44,6 +44,7 @@
 #include "libavutil/fifo.h"
 #include "libavutil/pixfmt.h"
 #include "libavutil/rational.h"
+#include "libavutil/spherical.h"
 #include "libavutil/threadmessage.h"
 
 #include "libswresample/swresample.h"
@@ -228,6 +229,8 @@ typedef struct OptionsContext {
 intnb_time_bases;
 SpecifierOpt *enc_time_bases;
 intnb_enc_time_bases;
+SpecifierOpt *spherical_mappings;
+intnb_spherical_mappings;
 } OptionsContext;
 
 typedef struct InputFilter {
diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
index c997ea8faf..666b3791b7 100644
--- a/ffmpeg_opt.c
+++ b/ffmpeg_opt.c
@@ -1514,12 +1514,29 @@ static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
 }
 }
 
+static int set_spherical_mapping(const char* opt, AVStream* st) {
+  size_t spherical_mapping_size = 0;
+  AVSphericalMapping *spherical_mapping = NULL;
+
+  int ret = av_spherical_parse_option(opt, _mapping,
+  _mapping_size);
+  if (ret >= 0) {
+ret = av_stream_add_side_data(st, AV_PKT_DATA_SPHERICAL, spherical_mapping, spherical_mapping_size);
+
+if (ret < 0) {
+  av_freep(_mapping);
+}
+  }
+
+  return ret;
+}
+
 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 {
 AVStream *st;
 OutputStream *ost;
 AVCodecContext *video_enc;
-char *frame_rate = NULL, *frame_aspect_ratio = NULL;
+char *frame_rate = NULL, *frame_aspect_ratio = NULL, *spherical_mapping = NULL;
 
 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
 st  = ost->st;
@@ -1546,6 +1563,12 @@ static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, in
 
 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
 MATCH_PER_STREAM_OPT(filters,str, ost->filters,oc, st);
+MATCH_PER_STREAM_OPT(spherical_mappings, str, spherical_mapping, oc, st);
+
+if (spherical_mapping && set_spherical_mapping(spherical_mapping, st) < 0) {
+av_log(NULL, AV_LOG_FATAL, "Invalid spherical_mapping: %s\n", spherical_mapping);
+exit_program(1);
+}
 
 if (!ost->stream_copy) {
 const char *p = NULL;
@@ -3569,6 +3592,10 @@ const OptionDef options[] = {
 "automatically insert correct rotate filters" },
 { "hwaccel_lax_profile_check", OPT_BOOL | OPT_EXPERT,{ _lax_profile_check},
 "attempt to decode anyway if HW accelerated decoder's supported profiles do not exactly match the stream" },
+{ "spherical_mapping", OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
+   OPT_OUTPUT,   { .off = OFFSET(spherical_mappings) },
+"set spherical mapping for video stream", "spherical_mapping" },
+
 
 /* audio options */
 { "aframes",OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,   { .func_arg = opt_audio_frames },
diff --git a/libavutil/spherical.c b/libavutil/spherical.c
index 4be55f36cf..508584d61f 100644
--- a/libavutil/spherical.c
+++ b/libavutil/spherical.c
@@ -19,6 +19,7 @@
  */
 
 #include "mem.h"
+#include "opt.h"
 #include "spherical.h"
 
 AVSphericalMapping *av_spherical_alloc(size_t *size)
@@ -77,3 +78,115 @@ int av_spherical_from_name(const char *name)
 
 return -1;
 }
+
+static const char *spherical_mapping_context_to_name(void *ptr)
+{
+return "spherical_mapping";
+}
+
+typedef struct {
+const AVClass* spherical_class;
+int projection;
+
+double yaw;
+double pitch;
+double roll;
+
+int64_t bound_left;
+int64_t bound_top;
+int64_t bound_right;
+int64_t bound_bottom;
+
+int64_t padding;
+} SphericalMappingContext;
+
+#define OFFSET(x) offsetof(SphericalMappingContext, x)
+#define DEFAULT 0
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
+
+static const AVOption spherical_mapping_options[] = {
+{ "projection", "projection", OFFSET(projection), AV_OPT_TYPE_INT,
+{ .i64 = -1 }, -1, AV_SPHERICAL_EQUIRECTANGULAR_TILE, FLAGS, "projection" },
+{ "equirectangular", "equirectangular projection", OFFSET(projection), AV_OPT_TYPE_CONST,
+{ .i64 =