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gstajacommon.cpp
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/* GStreamer
* Copyright (C) 2021 Sebastian Dröge <[email protected]>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <fcntl.h>
#include <semaphore.h>
#include "gstajacommon.h"
GST_DEBUG_CATEGORY_STATIC(gst_aja_debug);
#define GST_CAT_DEFAULT gst_aja_debug
typedef struct {
GstAjaVideoFormat gst_format;
NTV2VideoFormat aja_format;
NTV2VideoFormat quad_format;
} FormatMapEntry;
static const FormatMapEntry format_map[] = {
{GST_AJA_VIDEO_FORMAT_1080i_5000, NTV2_FORMAT_1080i_5000,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080i_5994, NTV2_FORMAT_1080i_5994,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080i_6000, NTV2_FORMAT_1080i_6000,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_720p_5994, NTV2_FORMAT_720p_5994,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_720p_6000, NTV2_FORMAT_720p_6000,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080psf_2398, NTV2_FORMAT_1080psf_2398,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080psf_2400, NTV2_FORMAT_1080psf_2400,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_2997, NTV2_FORMAT_1080p_2997,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_3000, NTV2_FORMAT_1080p_3000,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_2500, NTV2_FORMAT_1080p_2500,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_2398, NTV2_FORMAT_1080p_2398,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_2400, NTV2_FORMAT_1080p_2400,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_720p_5000, NTV2_FORMAT_720p_5000,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_5000_A, NTV2_FORMAT_1080p_5000_A,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_5994_A, NTV2_FORMAT_1080p_5994_A,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_6000_A, NTV2_FORMAT_1080p_6000_A,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_720p_2398, NTV2_FORMAT_720p_2398,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_720p_5000, NTV2_FORMAT_720p_2500,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080psf_2500_2, NTV2_FORMAT_1080psf_2500_2,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080psf_2997_2, NTV2_FORMAT_1080psf_2997_2,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080psf_3000_2, NTV2_FORMAT_1080psf_3000_2,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_625_5000, NTV2_FORMAT_625_5000, NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_525_5994, NTV2_FORMAT_525_5994, NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_525_2398, NTV2_FORMAT_525_2398, NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_525_2400, NTV2_FORMAT_525_2400, NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_DCI_2398, NTV2_FORMAT_1080p_2K_2398,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_DCI_2400, NTV2_FORMAT_1080p_2K_2400,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_DCI_2500, NTV2_FORMAT_1080p_2K_2500,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_DCI_2997, NTV2_FORMAT_1080p_2K_2997,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_DCI_3000, NTV2_FORMAT_1080p_2K_3000,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_DCI_5000_A, NTV2_FORMAT_1080p_2K_5000_A,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_DCI_5994_A, NTV2_FORMAT_1080p_2K_5994_A,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_1080p_DCI_6000_A, NTV2_FORMAT_1080p_2K_6000_A,
NTV2_FORMAT_UNKNOWN},
{GST_AJA_VIDEO_FORMAT_2160p_2398, NTV2_FORMAT_3840x2160p_2398,
NTV2_FORMAT_4x1920x1080p_2398},
{GST_AJA_VIDEO_FORMAT_2160p_2400, NTV2_FORMAT_3840x2160p_2400,
NTV2_FORMAT_4x1920x1080p_2400},
{GST_AJA_VIDEO_FORMAT_2160p_2500, NTV2_FORMAT_3840x2160p_2500,
NTV2_FORMAT_4x1920x1080p_2500},
{GST_AJA_VIDEO_FORMAT_2160p_2997, NTV2_FORMAT_3840x2160p_2997,
NTV2_FORMAT_4x1920x1080p_2997},
{GST_AJA_VIDEO_FORMAT_2160p_3000, NTV2_FORMAT_3840x2160p_3000,
NTV2_FORMAT_4x1920x1080p_3000},
{GST_AJA_VIDEO_FORMAT_2160p_5000, NTV2_FORMAT_3840x2160p_5000,
NTV2_FORMAT_4x1920x1080p_5000},
{GST_AJA_VIDEO_FORMAT_2160p_5994, NTV2_FORMAT_3840x2160p_5994,
NTV2_FORMAT_4x1920x1080p_5994},
{GST_AJA_VIDEO_FORMAT_2160p_6000, NTV2_FORMAT_3840x2160p_6000,
NTV2_FORMAT_4x1920x1080p_6000},
{GST_AJA_VIDEO_FORMAT_2160p_DCI_2398, NTV2_FORMAT_4096x2160p_2398,
NTV2_FORMAT_4x2048x1080p_2398},
{GST_AJA_VIDEO_FORMAT_2160p_DCI_2400, NTV2_FORMAT_4096x2160p_2400,
NTV2_FORMAT_4x2048x1080p_2400},
{GST_AJA_VIDEO_FORMAT_2160p_DCI_2500, NTV2_FORMAT_4096x2160p_2500,
NTV2_FORMAT_4x2048x1080p_2500},
{GST_AJA_VIDEO_FORMAT_2160p_DCI_2997, NTV2_FORMAT_4096x2160p_2997,
NTV2_FORMAT_4x2048x1080p_2997},
{GST_AJA_VIDEO_FORMAT_2160p_DCI_3000, NTV2_FORMAT_4096x2160p_3000,
NTV2_FORMAT_4x2048x1080p_3000},
{GST_AJA_VIDEO_FORMAT_2160p_DCI_5000, NTV2_FORMAT_4096x2160p_5000,
NTV2_FORMAT_4x2048x1080p_5000},
{GST_AJA_VIDEO_FORMAT_2160p_DCI_5994, NTV2_FORMAT_4096x2160p_5994,
NTV2_FORMAT_4x2048x1080p_5994},
{GST_AJA_VIDEO_FORMAT_2160p_DCI_6000, NTV2_FORMAT_4096x2160p_6000,
NTV2_FORMAT_4x2048x1080p_6000},
{GST_AJA_VIDEO_FORMAT_4320p_2398, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x3840x2160p_2398},
{GST_AJA_VIDEO_FORMAT_4320p_2400, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x3840x2160p_2400},
{GST_AJA_VIDEO_FORMAT_4320p_2500, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x3840x2160p_2500},
{GST_AJA_VIDEO_FORMAT_4320p_2997, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x3840x2160p_2997},
{GST_AJA_VIDEO_FORMAT_4320p_3000, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x3840x2160p_3000},
{GST_AJA_VIDEO_FORMAT_4320p_5000, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x3840x2160p_5000},
{GST_AJA_VIDEO_FORMAT_4320p_5994, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x3840x2160p_5994},
{GST_AJA_VIDEO_FORMAT_4320p_6000, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x3840x2160p_6000},
{GST_AJA_VIDEO_FORMAT_4320p_DCI_2398, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x4096x2160p_2398},
{GST_AJA_VIDEO_FORMAT_4320p_DCI_2400, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x4096x2160p_2400},
{GST_AJA_VIDEO_FORMAT_4320p_DCI_2500, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x4096x2160p_2500},
{GST_AJA_VIDEO_FORMAT_4320p_DCI_2997, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x4096x2160p_2997},
{GST_AJA_VIDEO_FORMAT_4320p_DCI_3000, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x4096x2160p_3000},
{GST_AJA_VIDEO_FORMAT_4320p_DCI_5000, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x4096x2160p_5000},
{GST_AJA_VIDEO_FORMAT_4320p_DCI_5994, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x4096x2160p_5994},
{GST_AJA_VIDEO_FORMAT_4320p_DCI_6000, NTV2_FORMAT_UNKNOWN,
NTV2_FORMAT_4x4096x2160p_6000},
};
GstCaps *gst_ntv2_supported_caps(NTV2DeviceID device_id) {
GstCaps *caps = gst_caps_new_empty();
for (gsize i = 0; i < G_N_ELEMENTS(format_map); i++) {
const FormatMapEntry &format = format_map[i];
GstCaps *tmp = NULL;
if (device_id == DEVICE_ID_INVALID) {
tmp = gst_aja_video_format_to_caps(format.gst_format);
} else if ((format.aja_format != NTV2_FORMAT_UNKNOWN &&
::NTV2DeviceCanDoVideoFormat(device_id, format.aja_format)) ||
(format.quad_format != NTV2_FORMAT_UNKNOWN &&
::NTV2DeviceCanDoVideoFormat(device_id, format.quad_format))) {
tmp = gst_aja_video_format_to_caps(format.gst_format);
}
if (tmp) {
// Widescreen PAL/NTSC
if (format.gst_format == GST_AJA_VIDEO_FORMAT_525_2398 ||
format.gst_format == GST_AJA_VIDEO_FORMAT_525_2400 ||
format.gst_format == GST_AJA_VIDEO_FORMAT_525_5994) {
GstCaps *tmp2 = gst_caps_copy(tmp);
gst_caps_set_simple(tmp2, "pixel-aspect-ratio", GST_TYPE_FRACTION, 40,
33, NULL);
gst_caps_append(tmp, tmp2);
} else if (format.gst_format == GST_AJA_VIDEO_FORMAT_625_5000) {
GstCaps *tmp2 = gst_caps_copy(tmp);
gst_caps_set_simple(tmp2, "pixel-aspect-ratio", GST_TYPE_FRACTION, 16,
11, NULL);
gst_caps_append(tmp, tmp2);
}
gst_caps_append(caps, tmp);
}
}
return caps;
}
GstCaps *gst_aja_video_format_to_caps(GstAjaVideoFormat format) {
const FormatMapEntry *entry = NULL;
for (gsize i = 0; i < G_N_ELEMENTS(format_map); i++) {
const FormatMapEntry &tmp = format_map[i];
if (tmp.gst_format == format) {
entry = &tmp;
break;
}
}
g_assert(entry != NULL);
if (entry->aja_format != NTV2_FORMAT_UNKNOWN)
return gst_ntv2_video_format_to_caps(entry->aja_format);
if (entry->quad_format != NTV2_FORMAT_UNKNOWN)
return gst_ntv2_video_format_to_caps(entry->quad_format);
g_assert_not_reached();
}
bool gst_video_info_from_aja_video_format(GstVideoInfo *info,
GstAjaVideoFormat format) {
const FormatMapEntry *entry = NULL;
for (gsize i = 0; i < G_N_ELEMENTS(format_map); i++) {
const FormatMapEntry &tmp = format_map[i];
if (tmp.gst_format == format) {
entry = &tmp;
break;
}
}
g_assert(entry != NULL);
if (entry->aja_format != NTV2_FORMAT_UNKNOWN)
return gst_video_info_from_ntv2_video_format(info, entry->aja_format);
if (entry->quad_format != NTV2_FORMAT_UNKNOWN)
return gst_video_info_from_ntv2_video_format(info, entry->quad_format);
g_assert_not_reached();
}
GstCaps *gst_ntv2_video_format_to_caps(NTV2VideoFormat format) {
GstVideoInfo info;
GstCaps *caps;
if (!gst_video_info_from_ntv2_video_format(&info, format)) return NULL;
caps = gst_video_info_to_caps(&info);
if (!caps) return caps;
guint n = gst_caps_get_size(caps);
for (guint i = 0; i < n; i++) {
GstStructure *s = gst_caps_get_structure(caps, i);
gst_structure_remove_fields(s, "chroma-site", "colorimetry", NULL);
}
return caps;
}
bool gst_video_info_from_ntv2_video_format(GstVideoInfo *info,
NTV2VideoFormat format) {
if (format == NTV2_FORMAT_UNKNOWN) return false;
NTV2Standard standard = ::GetNTV2StandardFromVideoFormat(format);
guint width = ::GetDisplayWidth(format);
guint height = ::GetDisplayHeight(format);
NTV2FrameRate fps = ::GetNTV2FrameRateFromVideoFormat(format);
guint fps_n, fps_d;
::GetFramesPerSecond(fps, fps_n, fps_d);
gst_video_info_set_format(info, GST_VIDEO_FORMAT_v210, width, height);
info->fps_n = fps_n;
info->fps_d = fps_d;
if (NTV2_IS_525_FORMAT(format)) {
info->par_n = 10;
info->par_d = 11;
} else if (NTV2_IS_625_FORMAT(format)) {
info->par_n = 12;
info->par_d = 11;
}
info->interlace_mode =
(!::IsProgressivePicture(format) && !NTV2_IS_PSF_VIDEO_FORMAT(format))
? GST_VIDEO_INTERLACE_MODE_INTERLEAVED
: GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
if (!::IsProgressiveTransport(format) && !NTV2_IS_PSF_VIDEO_FORMAT(format)) {
NTV2SmpteLineNumber line_number = ::GetSmpteLineNumber(standard);
if (line_number.firstFieldTop) {
GST_VIDEO_INFO_FIELD_ORDER(info) = GST_VIDEO_FIELD_ORDER_TOP_FIELD_FIRST;
} else {
GST_VIDEO_INFO_FIELD_ORDER(info) =
GST_VIDEO_FIELD_ORDER_BOTTOM_FIELD_FIRST;
}
}
return true;
}
NTV2VideoFormat gst_ntv2_video_format_from_caps(const GstCaps *caps,
bool quad) {
GstVideoInfo info;
if (!gst_video_info_from_caps(&info, caps)) return NTV2_FORMAT_UNKNOWN;
for (gsize i = 0; i < G_N_ELEMENTS(format_map); i++) {
const FormatMapEntry &format = format_map[i];
NTV2VideoFormat f = !quad ? format.aja_format : format.quad_format;
if (f == NTV2_FORMAT_UNKNOWN) continue;
guint width = ::GetDisplayWidth(f);
guint height = ::GetDisplayHeight(f);
NTV2FrameRate fps = ::GetNTV2FrameRateFromVideoFormat(f);
guint fps_n, fps_d;
::GetFramesPerSecond(fps, fps_n, fps_d);
if (width == (guint)info.width && height == (guint)info.height &&
(guint)info.fps_n == fps_n && (guint)info.fps_d == fps_d &&
((!::IsProgressiveTransport(f) &&
info.interlace_mode == GST_VIDEO_INTERLACE_MODE_INTERLEAVED) ||
(::IsProgressiveTransport(f) &&
info.interlace_mode == GST_VIDEO_INTERLACE_MODE_PROGRESSIVE)))
return f;
}
return NTV2_FORMAT_UNKNOWN;
}
GstAjaVideoFormat gst_aja_video_format_from_caps(const GstCaps *caps) {
GstVideoInfo info;
if (!gst_video_info_from_caps(&info, caps))
return GST_AJA_VIDEO_FORMAT_INVALID;
for (gsize i = 0; i < G_N_ELEMENTS(format_map); i++) {
const FormatMapEntry &format = format_map[i];
NTV2VideoFormat f = (format.aja_format != NTV2_FORMAT_UNKNOWN)
? format.aja_format
: format.quad_format;
if (f == NTV2_FORMAT_UNKNOWN) continue;
guint width = ::GetDisplayWidth(f);
guint height = ::GetDisplayHeight(f);
NTV2FrameRate fps = ::GetNTV2FrameRateFromVideoFormat(f);
guint fps_n, fps_d;
::GetFramesPerSecond(fps, fps_n, fps_d);
if (width == (guint)info.width && height == (guint)info.height &&
(guint)info.fps_n == fps_n && (guint)info.fps_d == fps_d &&
((!::IsProgressiveTransport(f) &&
info.interlace_mode == GST_VIDEO_INTERLACE_MODE_INTERLEAVED) ||
(::IsProgressiveTransport(f) &&
info.interlace_mode == GST_VIDEO_INTERLACE_MODE_PROGRESSIVE)))
return format.gst_format;
}
return GST_AJA_VIDEO_FORMAT_INVALID;
}
GstAjaVideoFormat gst_aja_video_format_from_ntv2_format(
NTV2VideoFormat format) {
if (format == NTV2_FORMAT_UNKNOWN) return GST_AJA_VIDEO_FORMAT_INVALID;
for (gsize i = 0; i < G_N_ELEMENTS(format_map); i++) {
const FormatMapEntry &entry = format_map[i];
if (entry.aja_format == format || entry.quad_format == format)
return entry.gst_format;
}
return GST_AJA_VIDEO_FORMAT_INVALID;
}
NTV2VideoFormat gst_ntv2_video_format_from_aja_format(GstAjaVideoFormat format,
bool quad) {
if (format == GST_AJA_VIDEO_FORMAT_INVALID) return NTV2_FORMAT_UNKNOWN;
for (gsize i = 0; i < G_N_ELEMENTS(format_map); i++) {
const FormatMapEntry &entry = format_map[i];
if (entry.gst_format == format) {
if (!quad && entry.aja_format != NTV2_FORMAT_UNKNOWN)
return entry.aja_format;
if (quad && entry.quad_format != NTV2_FORMAT_UNKNOWN)
return entry.quad_format;
}
}
return NTV2_FORMAT_UNKNOWN;
}
bool gst_ntv2_video_format_is_quad(NTV2VideoFormat format) {
return (format >= NTV2_FORMAT_FIRST_4K_DEF_FORMAT &&
format < NTV2_FORMAT_END_4K_DEF_FORMATS) ||
(format >= NTV2_FORMAT_FIRST_4K_DEF_FORMAT2 &&
format < NTV2_FORMAT_END_4K_DEF_FORMATS2) ||
(format >= NTV2_FORMAT_FIRST_UHD2_DEF_FORMAT &&
format < NTV2_FORMAT_END_UHD2_DEF_FORMATS) ||
(format >= NTV2_FORMAT_FIRST_UHD2_FULL_DEF_FORMAT &&
format < NTV2_FORMAT_END_UHD2_FULL_DEF_FORMATS);
}
GType gst_aja_audio_meta_api_get_type(void) {
static GType type;
if (g_once_init_enter(&type)) {
static const gchar *tags[] = {NULL};
GType _type = gst_meta_api_type_register("GstAjaAudioMetaAPI", tags);
GST_INFO("registering");
g_once_init_leave(&type, _type);
}
return type;
}
static gboolean gst_aja_audio_meta_transform(GstBuffer *dest, GstMeta *meta,
GstBuffer *buffer, GQuark type,
gpointer data) {
GstAjaAudioMeta *dmeta, *smeta;
if (GST_META_TRANSFORM_IS_COPY(type)) {
smeta = (GstAjaAudioMeta *)meta;
GST_TRACE("copy AJA audio metadata");
dmeta = gst_buffer_add_aja_audio_meta(dest, smeta->buffer);
if (!dmeta) return FALSE;
} else {
/* return FALSE, if transform type is not supported */
return FALSE;
}
return TRUE;
}
static gboolean gst_aja_audio_meta_init(GstMeta *meta, gpointer params,
GstBuffer *buffer) {
GstAjaAudioMeta *emeta = (GstAjaAudioMeta *)meta;
emeta->buffer = NULL;
return TRUE;
}
static void gst_aja_audio_meta_free(GstMeta *meta, GstBuffer *buffer) {
GstAjaAudioMeta *emeta = (GstAjaAudioMeta *)meta;
gst_buffer_replace(&emeta->buffer, NULL);
}
const GstMetaInfo *gst_aja_audio_meta_get_info(void) {
static const GstMetaInfo *meta_info = NULL;
if (g_once_init_enter((GstMetaInfo **)&meta_info)) {
const GstMetaInfo *mi = gst_meta_register(
GST_AJA_AUDIO_META_API_TYPE, "GstAjaAudioMeta", sizeof(GstAjaAudioMeta),
gst_aja_audio_meta_init, gst_aja_audio_meta_free,
gst_aja_audio_meta_transform);
g_once_init_leave((GstMetaInfo **)&meta_info, (GstMetaInfo *)mi);
}
return meta_info;
}
GstAjaAudioMeta *gst_buffer_add_aja_audio_meta(GstBuffer *buffer,
GstBuffer *audio_buffer) {
GstAjaAudioMeta *meta;
g_return_val_if_fail(buffer != NULL, NULL);
g_return_val_if_fail(audio_buffer != NULL, NULL);
meta = (GstAjaAudioMeta *)gst_buffer_add_meta(buffer, GST_AJA_AUDIO_META_INFO,
NULL);
meta->buffer = gst_buffer_ref(audio_buffer);
return meta;
}
typedef struct {
GstMemory mem;
guint8 *data;
} GstAjaMemory;
typedef struct {
guint8 *data;
gsize size;
} FreedMemory;
G_DEFINE_TYPE(GstAjaAllocator, gst_aja_allocator, GST_TYPE_ALLOCATOR);
static inline void _aja_memory_init(GstAjaAllocator *alloc, GstAjaMemory *mem,
GstMemoryFlags flags, GstMemory *parent,
gpointer data, gsize maxsize, gsize offset,
gsize size) {
gst_memory_init(GST_MEMORY_CAST(mem), flags, GST_ALLOCATOR(alloc), parent,
maxsize, 4095, offset, size);
mem->data = (guint8 *)data;
}
static inline GstAjaMemory *_aja_memory_new(GstAjaAllocator *alloc,
GstMemoryFlags flags,
GstAjaMemory *parent, gpointer data,
gsize maxsize, gsize offset,
gsize size) {
GstAjaMemory *mem;
mem = (GstAjaMemory *)g_new0(GstAjaMemory, 1);
_aja_memory_init(alloc, mem, flags, (GstMemory *)parent, data, maxsize,
offset, size);
return mem;
}
static GstAjaMemory *_aja_memory_new_block(GstAjaAllocator *alloc,
GstMemoryFlags flags, gsize maxsize,
gsize offset, gsize size) {
GstAjaMemory *mem;
guint8 *data = NULL;
mem = (GstAjaMemory *)g_new0(GstAjaMemory, 1);
GST_OBJECT_LOCK(alloc);
guint n = gst_queue_array_get_length(alloc->freed_mems);
for (guint i = 0; i < n; i++) {
FreedMemory *fmem =
(FreedMemory *)gst_queue_array_peek_nth_struct(alloc->freed_mems, i);
if (fmem->size == size) {
data = fmem->data;
GST_TRACE_OBJECT(
alloc, "Using cached freed memory of size %" G_GSIZE_FORMAT " at %p",
fmem->size, fmem->data);
gst_queue_array_drop_struct(alloc->freed_mems, i, NULL);
break;
}
}
GST_OBJECT_UNLOCK(alloc);
if (!data) {
data = (guint8 *)AJAMemory::AllocateAligned(maxsize, 4096);
GST_TRACE_OBJECT(alloc,
"Allocated memory of size %" G_GSIZE_FORMAT " at %p",
maxsize, data);
if (!alloc->device->device->DMABufferLock((ULWord *)data, maxsize, true)) {
GST_WARNING_OBJECT(alloc, "Failed to pre-lock memory");
}
}
_aja_memory_init(alloc, mem, flags, NULL, data, maxsize, offset, size);
return mem;
}
static gpointer _aja_memory_map(GstAjaMemory *mem, gsize maxsize,
GstMapFlags flags) {
return mem->data;
}
static gboolean _aja_memory_unmap(GstAjaMemory *mem) { return TRUE; }
static GstMemory *_aja_memory_copy(GstAjaMemory *mem, gssize offset,
gsize size) {
GstMemory *copy;
GstMapInfo map;
if (size == (gsize)-1)
size = mem->mem.size > (gsize)offset ? mem->mem.size - offset : 0;
copy = gst_allocator_alloc(mem->mem.allocator, size, NULL);
gst_memory_map(copy, &map, GST_MAP_READ);
GST_DEBUG("memcpy %" G_GSIZE_FORMAT " memory %p -> %p", size, mem, copy);
memcpy(map.data, mem->data + mem->mem.offset + offset, size);
gst_memory_unmap(copy, &map);
return copy;
}
static GstAjaMemory *_aja_memory_share(GstAjaMemory *mem, gssize offset,
gsize size) {
GstAjaMemory *sub;
GstAjaMemory *parent;
/* find the real parent */
if ((parent = (GstAjaMemory *)mem->mem.parent) == NULL)
parent = (GstAjaMemory *)mem;
if (size == (gsize)-1) size = mem->mem.size - offset;
sub = _aja_memory_new(GST_AJA_ALLOCATOR(parent->mem.allocator),
(GstMemoryFlags)(GST_MINI_OBJECT_FLAGS(parent) |
GST_MINI_OBJECT_FLAG_LOCK_READONLY),
parent, parent->data, mem->mem.maxsize,
mem->mem.offset + offset, size);
return sub;
}
static GstMemory *gst_aja_allocator_alloc(GstAllocator *alloc, gsize size,
GstAllocationParams *params) {
g_warn_if_fail(params->prefix == 0);
g_warn_if_fail(params->padding == 0);
return (GstMemory *)_aja_memory_new_block(GST_AJA_ALLOCATOR(alloc),
params->flags, size, 0, size);
}
static void gst_aja_allocator_free(GstAllocator *alloc, GstMemory *mem) {
GstAjaMemory *dmem = (GstAjaMemory *)mem;
if (!mem->parent) {
GstAjaAllocator *aja_alloc = GST_AJA_ALLOCATOR(alloc);
GST_OBJECT_LOCK(aja_alloc);
while (gst_queue_array_get_length(aja_alloc->freed_mems) > 8) {
FreedMemory *fmem =
(FreedMemory *)gst_queue_array_pop_head_struct(aja_alloc->freed_mems);
GST_TRACE_OBJECT(
alloc, "Freeing cached memory of size %" G_GSIZE_FORMAT " at %p",
fmem->size, fmem->data);
aja_alloc->device->device->DMABufferUnlock((ULWord *)fmem->data,
fmem->size);
AJAMemory::FreeAligned(fmem->data);
}
FreedMemory fmem;
GST_TRACE_OBJECT(alloc,
"Caching freed memory of size %" G_GSIZE_FORMAT " at %p",
mem->maxsize, dmem->data);
fmem.data = dmem->data;
fmem.size = mem->size;
gst_queue_array_push_tail_struct(aja_alloc->freed_mems, &fmem);
GST_OBJECT_UNLOCK(aja_alloc);
}
g_free(dmem);
}
static void gst_aja_allocator_finalize(GObject *alloc) {
GstAjaAllocator *aja_alloc = GST_AJA_ALLOCATOR(alloc);
GST_DEBUG_OBJECT(alloc, "Freeing allocator");
FreedMemory *mem;
while ((mem = (FreedMemory *)gst_queue_array_pop_head_struct(
aja_alloc->freed_mems))) {
GST_TRACE_OBJECT(alloc, "Freeing cached memory at %p", mem->data);
aja_alloc->device->device->DMABufferUnlock((ULWord *)mem->data, mem->size);
AJAMemory::FreeAligned(mem->data);
}
gst_aja_ntv2_device_unref(aja_alloc->device);
G_OBJECT_CLASS(gst_aja_allocator_parent_class)->finalize(alloc);
}
static void gst_aja_allocator_class_init(GstAjaAllocatorClass *klass) {
GObjectClass *gobject_class;
GstAllocatorClass *allocator_class;
gobject_class = (GObjectClass *)klass;
allocator_class = (GstAllocatorClass *)klass;
gobject_class->finalize = gst_aja_allocator_finalize;
allocator_class->alloc = gst_aja_allocator_alloc;
allocator_class->free = gst_aja_allocator_free;
}
static void gst_aja_allocator_init(GstAjaAllocator *aja_alloc) {
GstAllocator *alloc = GST_ALLOCATOR_CAST(aja_alloc);
alloc->mem_type = GST_AJA_ALLOCATOR_MEMTYPE;
alloc->mem_map = (GstMemoryMapFunction)_aja_memory_map;
alloc->mem_unmap = (GstMemoryUnmapFunction)_aja_memory_unmap;
alloc->mem_copy = (GstMemoryCopyFunction)_aja_memory_copy;
alloc->mem_share = (GstMemoryShareFunction)_aja_memory_share;
}
GstAllocator *gst_aja_allocator_new(GstAjaNtv2Device *device) {
GstAjaAllocator *alloc =
(GstAjaAllocator *)g_object_new(GST_TYPE_AJA_ALLOCATOR, NULL);
alloc->device = gst_aja_ntv2_device_ref(device);
alloc->freed_mems = gst_queue_array_new_for_struct(sizeof(FreedMemory), 16);
GST_DEBUG_OBJECT(alloc, "Creating allocator for device %d",
device->device->GetIndexNumber());
return GST_ALLOCATOR(alloc);
}
GstAjaNtv2Device *gst_aja_ntv2_device_obtain(const gchar *device_identifier) {
CNTV2Device *device = new CNTV2Device();
if (!CNTV2DeviceScanner::GetFirstDeviceFromArgument(device_identifier,
*device)) {
delete device;
return NULL;
}
GstAjaNtv2Device *dev = g_atomic_rc_box_new0(GstAjaNtv2Device);
dev->device = device;
return dev;
}
GstAjaNtv2Device *gst_aja_ntv2_device_ref(GstAjaNtv2Device *device) {
return (GstAjaNtv2Device *)g_atomic_rc_box_acquire(device);
}
void gst_aja_ntv2_device_unref(GstAjaNtv2Device *device) {
g_atomic_rc_box_release_full(device, [](gpointer data) {
GstAjaNtv2Device *dev = (GstAjaNtv2Device *)data;
delete dev->device;
});
}
static gpointer init_setup_mutex(gpointer data) {
sem_t *s = SEM_FAILED;
s = sem_open("/gstreamer-aja-sem", O_CREAT, S_IRUSR | S_IWUSR, 1);
if (s == SEM_FAILED) {
g_critical("Failed to create SHM semaphore for GStreamer AJA plugin: %s",
g_strerror(errno));
}
return s;
}
static sem_t *get_setup_mutex(void) {
static GOnce once = G_ONCE_INIT;
g_once(&once, init_setup_mutex, NULL);
return (sem_t *)once.retval;
}
ShmMutexLocker::ShmMutexLocker() {
sem_t *s = get_setup_mutex();
if (s != SEM_FAILED) sem_wait(s);
}
ShmMutexLocker::~ShmMutexLocker() {
sem_t *s = get_setup_mutex();
if (s != SEM_FAILED) sem_post(s);
}
static guint gst_aja_device_get_frame_multiplier(GstAjaNtv2Device *device,
NTV2Channel channel) {
// quad formats use 4x as many frames, quad-quad formats 8x
bool quad_enabled = false;
device->device->GetQuadFrameEnable(quad_enabled, channel);
bool quad_quad_enabled = false;
device->device->GetQuadQuadFrameEnable(quad_quad_enabled, channel);
NTV2VideoFormat format = NTV2_FORMAT_UNKNOWN;
device->device->GetVideoFormat(format, channel);
GST_TRACE("Channel %d uses mode %d (quad: %d, quad quad: %d)", (gint)channel,
(gint)format, quad_enabled, quad_quad_enabled);
// Similarly, 2k/UHD use 4x as many frames and 4k/UHD2 use 8x as many
// frames
if (format != NTV2_FORMAT_UNKNOWN) {
guint width = ::GetDisplayWidth(format);
guint height = ::GetDisplayHeight(format);
if (height <= 1080 && width <= 1920) {
// SD and HD but not 2k!
} else if (height <= 2160 && width <= 3840) {
// 2k and UHD but not 4k
quad_enabled = true;
} else if (height <= 4320 && width <= 7680) {
// 4k and UHD2 but not 8k
quad_quad_enabled = true;
} else {
// 8k FIXME
quad_quad_enabled = true;
}
}
if (quad_enabled) {
g_assert(!quad_quad_enabled);
return 4;
} else if (quad_quad_enabled) {
g_assert(!quad_enabled);
return 8;
}
return 1;
}
// Returns -1 on failure or otherwise the start_frame.
// end_frame would be start_frame + frame_count - 1
gint gst_aja_ntv2_device_find_unallocated_frames(GstAjaNtv2Device *device,
NTV2Channel channel,
guint frame_count) {
g_assert(frame_count != 0);
g_assert(device != NULL);
g_assert(device->device->IsOpen());
// Adapted from CNTV2Card::FindUnallocatedFrames() with
// quad/quad-quad/UHD/UHD2 support
std::set<guint16> used_frames;
for (NTV2Channel c = ::NTV2_CHANNEL1; c < NTV2_MAX_NUM_CHANNELS;
c = (NTV2Channel)(c + 1)) {
AUTOCIRCULATE_STATUS ac_status;
if (device->device->AutoCirculateGetStatus(c, ac_status) &&
!ac_status.IsStopped()) {
guint16 start_frame = ac_status.GetStartFrame();
guint16 end_frame = ac_status.GetEndFrame();
guint multiplier = gst_aja_device_get_frame_multiplier(device, c);
GST_TRACE("Channel %d uses frames %u-%u (multiplier: %u)", c, start_frame,
end_frame, multiplier);
start_frame *= multiplier;
end_frame *= multiplier;
end_frame += (multiplier - 1);
GST_TRACE("Channel %d uses HD frames %u-%u", c, start_frame, end_frame);
for (guint16 i = start_frame; i <= end_frame; i++) {
used_frames.insert(i);
}
}
}
guint multiplier = gst_aja_device_get_frame_multiplier(device, channel);
frame_count *= multiplier;
const guint16 last_frame =
::NTV2DeviceGetNumberFrameBuffers(device->device->GetDeviceID()) - 1;
guint16 start_frame = 0;
guint16 end_frame = start_frame + frame_count - 1;
auto iter = used_frames.cbegin();
while (iter != used_frames.cend()) {
guint16 allocated_start_frame = *iter;
guint16 allocated_end_frame = allocated_start_frame;
// Find end of the allocation
while (++iter != used_frames.cend() && *iter == (allocated_end_frame + 1))
allocated_end_frame++;
// Free block before this allocation
if (start_frame < allocated_start_frame &&
end_frame < allocated_start_frame)
break;
// Move after this allocation and check if there is enough space before
// the next allocation
start_frame = GST_ROUND_UP_N(allocated_end_frame + 1, multiplier);
end_frame = start_frame + frame_count - 1;
}
// If above we moved after the end of the available frames error out
if (start_frame > last_frame || end_frame > last_frame) {
GST_WARNING("Did not find a contiguous unused range of %u frames",
frame_count);
return -1;
}
// Otherwise we have enough space after the last allocation
GST_INFO("Using HD frames %u-%u", start_frame, end_frame);
GST_INFO("Using frames %u-%u", start_frame / multiplier,
start_frame / multiplier + frame_count / multiplier - 1);
return start_frame / multiplier;
}
GType gst_aja_audio_system_get_type(void) {
static gsize id = 0;
static const GEnumValue modes[] = {
{GST_AJA_AUDIO_SYSTEM_AUTO, "auto", "Auto (based on selected channel)"},
{GST_AJA_AUDIO_SYSTEM_1, "1", "Audio system 1"},
{GST_AJA_AUDIO_SYSTEM_2, "2", "Audio system 2"},
{GST_AJA_AUDIO_SYSTEM_3, "3", "Audio system 3"},
{GST_AJA_AUDIO_SYSTEM_4, "4", "Audio system 4"},
{GST_AJA_AUDIO_SYSTEM_5, "5", "Audio system 5"},
{GST_AJA_AUDIO_SYSTEM_6, "6", "Audio system 6"},
{GST_AJA_AUDIO_SYSTEM_7, "7", "Audio system 7"},
{GST_AJA_AUDIO_SYSTEM_8, "8", "Audio system 8"},
{0, NULL, NULL}};
if (g_once_init_enter(&id)) {
GType tmp = g_enum_register_static("GstAjaAudioSystem", modes);
g_once_init_leave(&id, tmp);
}
return (GType)id;
}
GType gst_aja_output_destination_get_type(void) {
static gsize id = 0;
static const GEnumValue modes[] = {
{GST_AJA_OUTPUT_DESTINATION_AUTO, "auto",
"Auto (based on selected channel)"},
{GST_AJA_OUTPUT_DESTINATION_ANALOG, "analog", "Analog Output"},
{GST_AJA_OUTPUT_DESTINATION_SDI1, "sdi-1", "SDI Output 1"},
{GST_AJA_OUTPUT_DESTINATION_SDI2, "sdi-2", "SDI Output 2"},
{GST_AJA_OUTPUT_DESTINATION_SDI3, "sdi-3", "SDI Output 3"},
{GST_AJA_OUTPUT_DESTINATION_SDI4, "sdi-4", "SDI Output 4"},
{GST_AJA_OUTPUT_DESTINATION_SDI5, "sdi-5", "SDI Output 5"},
{GST_AJA_OUTPUT_DESTINATION_SDI6, "sdi-6", "SDI Output 6"},
{GST_AJA_OUTPUT_DESTINATION_SDI7, "sdi-7", "SDI Output 7"},
{GST_AJA_OUTPUT_DESTINATION_SDI8, "sdi-8", "SDI Output 8"},
{GST_AJA_OUTPUT_DESTINATION_HDMI, "hdmi", "HDMI Output"},
{0, NULL, NULL}};
if (g_once_init_enter(&id)) {
GType tmp = g_enum_register_static("GstAjaOutputDestination", modes);
g_once_init_leave(&id, tmp);
}
return (GType)id;
}
GType gst_aja_reference_source_get_type(void) {
static gsize id = 0;
static const GEnumValue modes[] = {
{GST_AJA_REFERENCE_SOURCE_AUTO, "auto", "Auto"},
{GST_AJA_REFERENCE_SOURCE_FREERUN, "freerun", "Freerun"},
{GST_AJA_REFERENCE_SOURCE_EXTERNAL, "external", "External"},
{GST_AJA_REFERENCE_SOURCE_INPUT_1, "input-1", "SDI Input 1"},
{GST_AJA_REFERENCE_SOURCE_INPUT_2, "input-2", "SDI Input 2"},
{GST_AJA_REFERENCE_SOURCE_INPUT_3, "input-3", "SDI Input 3"},
{GST_AJA_REFERENCE_SOURCE_INPUT_4, "input-4", "SDI Input 4"},
{GST_AJA_REFERENCE_SOURCE_INPUT_5, "input-5", "SDI Input 5"},
{GST_AJA_REFERENCE_SOURCE_INPUT_6, "input-6", "SDI Input 6"},
{GST_AJA_REFERENCE_SOURCE_INPUT_7, "input-7", "SDI Input 7"},
{GST_AJA_REFERENCE_SOURCE_INPUT_8, "input-8", "SDI Input 8"},
{0, NULL, NULL}};
if (g_once_init_enter(&id)) {
GType tmp = g_enum_register_static("GstAjaReferenceSource", modes);
g_once_init_leave(&id, tmp);
}
return (GType)id;
}
GType gst_aja_input_source_get_type(void) {
static gsize id = 0;
static const GEnumValue modes[] = {
{GST_AJA_INPUT_SOURCE_AUTO, "auto", "Auto (based on selected channel)"},
{GST_AJA_INPUT_SOURCE_ANALOG1, "analog-1", "Analog Input 1"},
{GST_AJA_INPUT_SOURCE_SDI1, "sdi-1", "SDI Input 1"},
{GST_AJA_INPUT_SOURCE_SDI2, "sdi-2", "SDI Input 2"},
{GST_AJA_INPUT_SOURCE_SDI3, "sdi-3", "SDI Input 3"},
{GST_AJA_INPUT_SOURCE_SDI4, "sdi-4", "SDI Input 4"},
{GST_AJA_INPUT_SOURCE_SDI5, "sdi-5", "SDI Input 5"},
{GST_AJA_INPUT_SOURCE_SDI6, "sdi-6", "SDI Input 6"},
{GST_AJA_INPUT_SOURCE_SDI7, "sdi-7", "SDI Input 7"},
{GST_AJA_INPUT_SOURCE_SDI8, "sdi-8", "SDI Input 8"},
{GST_AJA_INPUT_SOURCE_HDMI1, "hdmi-1", "HDMI Input 1"},
{GST_AJA_INPUT_SOURCE_HDMI2, "hdmi-2", "HDMI Input 2"},
{GST_AJA_INPUT_SOURCE_HDMI3, "hdmi-3", "HDMI Input 3"},
{GST_AJA_INPUT_SOURCE_HDMI4, "hdmi-4", "HDMI Input 4"},
{0, NULL, NULL}};
if (g_once_init_enter(&id)) {
GType tmp = g_enum_register_static("GstAjaInputSource", modes);
g_once_init_leave(&id, tmp);
}
return (GType)id;
}
GType gst_aja_sdi_mode_get_type(void) {
static gsize id = 0;
static const GEnumValue modes[] = {
{GST_AJA_SDI_MODE_SINGLE_LINK, "single-link", "Single Link"},
{GST_AJA_SDI_MODE_QUAD_LINK_SQD, "quad-link-sqd", "Quad Link SQD"},
{GST_AJA_SDI_MODE_QUAD_LINK_TSI, "quad-link-tsi", "Quad Link TSI"},
{0, NULL, NULL}};
if (g_once_init_enter(&id)) {
GType tmp = g_enum_register_static("GstAjaSdiMode", modes);
g_once_init_leave(&id, tmp);
}