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avformat/matroskadec: add support for Spherical Video elements

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Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2016-12-06 14:48:45 -03:00
parent e3694478a9
commit 445204cd57
2 changed files with 76 additions and 0 deletions
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14
libavformat/matroska.h
View File

@ -153,6 +153,13 @@
#define MATROSKA_ID_VIDEOCOLOR_LUMINANCEMAX 0x55D9
#define MATROSKA_ID_VIDEOCOLOR_LUMINANCEMIN 0x55DA
#define MATROSKA_ID_VIDEOPROJECTION 0x7670
#define MATROSKA_ID_VIDEOPROJECTIONTYPE 0x7671
#define MATROSKA_ID_VIDEOPROJECTIONPRIVATE 0x7672
#define MATROSKA_ID_VIDEOPROJECTIONPOSEYAW 0x7673
#define MATROSKA_ID_VIDEOPROJECTIONPOSEPITCH 0x7674
#define MATROSKA_ID_VIDEOPROJECTIONPOSEROLL 0x7675
/* IDs in the trackaudio master */
#define MATROSKA_ID_AUDIOSAMPLINGFREQ 0xB5
#define MATROSKA_ID_AUDIOOUTSAMPLINGFREQ 0x78B5
@ -331,6 +338,13 @@ typedef enum {
MATROSKA_COLOUR_CHROMASITINGVERT_NB
} MatroskaColourChromaSitingVert;
typedef enum {
MATROSKA_VIDEO_PROJECTION_TYPE_RECTANGULAR = 0,
MATROSKA_VIDEO_PROJECTION_TYPE_EQUIRECTANGULAR = 1,
MATROSKA_VIDEO_PROJECTION_TYPE_CUBEMAP = 2,
MATROSKA_VIDEO_PROJECTION_TYPE_MESH = 3,
} MatroskaVideoProjectionType;
/*
* Matroska Codec IDs, strings
*/

62
libavformat/matroskadec.c
View File

@ -43,6 +43,7 @@
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/time_internal.h"
#include "libavutil/spherical.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/flac.h"
@ -161,6 +162,14 @@ typedef struct MatroskaTrackVideoColor {
MatroskaMasteringMeta mastering_meta;
} MatroskaTrackVideoColor;
typedef struct MatroskaTrackVideoProjection {
uint64_t type;
EbmlBin private;
double yaw;
double pitch;
double roll;
} MatroskaTrackVideoProjection;
typedef struct MatroskaTrackVideo {
double frame_rate;
uint64_t display_width;
@ -174,6 +183,7 @@ typedef struct MatroskaTrackVideo {
uint64_t stereo_mode;
uint64_t alpha_mode;
MatroskaTrackVideoColor color;
MatroskaTrackVideoProjection projection;
} MatroskaTrackVideo;
typedef struct MatroskaTrackAudio {
@ -424,6 +434,15 @@ static const EbmlSyntax matroska_track_video_color[] = {
{ 0 }
};
static const EbmlSyntax matroska_track_video_projection[] = {
{ MATROSKA_ID_VIDEOPROJECTIONTYPE, EBML_UINT, 0, offsetof(MatroskaTrackVideoProjection, type), { .u = MATROSKA_VIDEO_PROJECTION_TYPE_RECTANGULAR } },
{ MATROSKA_ID_VIDEOPROJECTIONPRIVATE, EBML_BIN, 0, offsetof(MatroskaTrackVideoProjection, private) },
{ MATROSKA_ID_VIDEOPROJECTIONPOSEYAW, EBML_FLOAT, 0, offsetof(MatroskaTrackVideoProjection, yaw), { .f=0.0 } },
{ MATROSKA_ID_VIDEOPROJECTIONPOSEPITCH, EBML_FLOAT, 0, offsetof(MatroskaTrackVideoProjection, pitch), { .f=0.0 } },
{ MATROSKA_ID_VIDEOPROJECTIONPOSEROLL, EBML_FLOAT, 0, offsetof(MatroskaTrackVideoProjection, roll), { .f=0.0 } },
{ 0 }
};
static const EbmlSyntax matroska_track_video[] = {
{ MATROSKA_ID_VIDEOFRAMERATE, EBML_FLOAT, 0, offsetof(MatroskaTrackVideo, frame_rate) },
{ MATROSKA_ID_VIDEODISPLAYWIDTH, EBML_UINT, 0, offsetof(MatroskaTrackVideo, display_width), { .u=-1 } },
@ -433,6 +452,7 @@ static const EbmlSyntax matroska_track_video[] = {
{ MATROSKA_ID_VIDEOCOLORSPACE, EBML_BIN, 0, offsetof(MatroskaTrackVideo, color_space) },
{ MATROSKA_ID_VIDEOALPHAMODE, EBML_UINT, 0, offsetof(MatroskaTrackVideo, alpha_mode) },
{ MATROSKA_ID_VIDEOCOLOR, EBML_NEST, 0, offsetof(MatroskaTrackVideo, color), { .n = matroska_track_video_color } },
{ MATROSKA_ID_VIDEOPROJECTION, EBML_NEST, 0, offsetof(MatroskaTrackVideo, projection), { .n = matroska_track_video_projection } },
{ MATROSKA_ID_VIDEOPIXELCROPB, EBML_NONE },
{ MATROSKA_ID_VIDEOPIXELCROPT, EBML_NONE },
{ MATROSKA_ID_VIDEOPIXELCROPL, EBML_NONE },
@ -1879,6 +1899,44 @@ static int mkv_parse_video_color(AVStream *st, const MatroskaTrack *track) {
return 0;
}
static int mkv_parse_video_projection(AVStream *st, const MatroskaTrack *track) {
AVSphericalMapping *spherical;
enum AVSphericalProjection projection;
size_t spherical_size;
int ret;
switch (track->video.projection.type) {
case MATROSKA_VIDEO_PROJECTION_TYPE_EQUIRECTANGULAR:
if (track->video.projection.private.size < 4)
return AVERROR_INVALIDDATA;
projection = AV_SPHERICAL_EQUIRECTANGULAR;
break;
case MATROSKA_VIDEO_PROJECTION_TYPE_CUBEMAP:
if (track->video.projection.private.size < 4)
return AVERROR_INVALIDDATA;
projection = AV_SPHERICAL_CUBEMAP;
break;
default:
return 0;
}
spherical = av_spherical_alloc(&spherical_size);
if (!spherical)
return AVERROR(ENOMEM);
spherical->projection = projection;
spherical->yaw = (int32_t)(track->video.projection.yaw * (1 << 16));
spherical->pitch = (int32_t)(track->video.projection.pitch * (1 << 16));
spherical->roll = (int32_t)(track->video.projection.roll * (1 << 16));
ret = av_stream_add_side_data(st, AV_PKT_DATA_SPHERICAL, (uint8_t *)spherical,
spherical_size);
if (ret < 0)
return ret;
return 0;
}
static int get_qt_codec(MatroskaTrack *track, uint32_t *fourcc, enum AVCodecID *codec_id)
{
const AVCodecTag *codec_tags;
@ -2361,6 +2419,10 @@ static int matroska_parse_tracks(AVFormatContext *s)
if (ret < 0)
return ret;
}
ret = mkv_parse_video_projection(st, track);
if (ret < 0)
return ret;
} else if (track->type == MATROSKA_TRACK_TYPE_AUDIO) {
st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
st->codecpar->codec_tag = fourcc;