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gstreamer/subprojects/gst-plugins-bad/sys/mediafoundation/gstmfutils.cpp

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/* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
* Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
*
* 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 St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstmfconfig.h"
#include "gstmfutils.h"
#include <wrl.h>
/* *INDENT-OFF* */
using namespace Microsoft::WRL;
GST_DEBUG_CATEGORY_EXTERN (gst_mf_utils_debug);
#define GST_CAT_DEFAULT gst_mf_utils_debug
#define MAKE_RAW_FORMAT_CAPS(format) \
"video/x-raw, format = (string) " format
/* No GUID is defined for "Y16 " in mfapi.h, but it's used by several devices */
DEFINE_MEDIATYPE_GUID (MFVideoFormat_Y16, FCC ('Y16 '));
static struct
{
const GUID &mf_format;
const gchar *caps_string;
GstVideoFormat format;
} raw_video_format_map[] = {
/* NOTE: when adding new format, gst_mf_update_video_info_with_stride() must
* be updated as well */
{MFVideoFormat_RGB32, MAKE_RAW_FORMAT_CAPS ("BGRx"), GST_VIDEO_FORMAT_BGRx},
{MFVideoFormat_ARGB32, MAKE_RAW_FORMAT_CAPS ("BGRA"), GST_VIDEO_FORMAT_BGRA},
{MFVideoFormat_RGB565, MAKE_RAW_FORMAT_CAPS ("RGB16"), GST_VIDEO_FORMAT_RGB16},
{MFVideoFormat_RGB555, MAKE_RAW_FORMAT_CAPS ("RGB15"), GST_VIDEO_FORMAT_RGB15},
{MFVideoFormat_RGB24, MAKE_RAW_FORMAT_CAPS ("BGR"), GST_VIDEO_FORMAT_BGR},
/* packed YUV */
{MFVideoFormat_YUY2, MAKE_RAW_FORMAT_CAPS ("YUY2"), GST_VIDEO_FORMAT_YUY2},
{MFVideoFormat_YVYU, MAKE_RAW_FORMAT_CAPS ("YVYU"), GST_VIDEO_FORMAT_YVYU},
{MFVideoFormat_UYVY, MAKE_RAW_FORMAT_CAPS ("UYVY"), GST_VIDEO_FORMAT_UYVY},
{MFVideoFormat_AYUV, MAKE_RAW_FORMAT_CAPS ("VUYA"), GST_VIDEO_FORMAT_VUYA},
/* semi-planar */
{MFVideoFormat_NV12, MAKE_RAW_FORMAT_CAPS ("NV12"), GST_VIDEO_FORMAT_NV12},
{MFVideoFormat_P010, MAKE_RAW_FORMAT_CAPS ("P010_10LE"), GST_VIDEO_FORMAT_P010_10LE},
{MFVideoFormat_P016, MAKE_RAW_FORMAT_CAPS ("P016_LE"), GST_VIDEO_FORMAT_P016_LE},
/* planar */
{MFVideoFormat_I420, MAKE_RAW_FORMAT_CAPS ("I420"), GST_VIDEO_FORMAT_I420},
{MFVideoFormat_IYUV, MAKE_RAW_FORMAT_CAPS ("I420"), GST_VIDEO_FORMAT_I420},
{MFVideoFormat_YV12, MAKE_RAW_FORMAT_CAPS ("YV12"), GST_VIDEO_FORMAT_YV12},
/* complex format */
{MFVideoFormat_v210, MAKE_RAW_FORMAT_CAPS ("v210"), GST_VIDEO_FORMAT_v210},
{MFVideoFormat_v216, MAKE_RAW_FORMAT_CAPS ("v216"), GST_VIDEO_FORMAT_v216},
/* gray */
{MFVideoFormat_Y16, MAKE_RAW_FORMAT_CAPS ("GRAY16_LE"), GST_VIDEO_FORMAT_GRAY16_LE},
};
static struct
{
const GUID &mf_format;
const gchar *caps_string;
} encoded_video_format_map[] = {
{MFVideoFormat_H264, "video/x-h264"},
{MFVideoFormat_HEVC, "video/x-h265"},
{MFVideoFormat_H265, "video/x-h265"},
{MFVideoFormat_VP80, "video/x-vp8"},
{MFVideoFormat_VP90, "video/x-vp9"},
{MFVideoFormat_MJPG, "image/jpeg"},
};
/* *INDENT-ON* */
GstVideoFormat
gst_mf_video_subtype_to_video_format (const GUID * subtype)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (raw_video_format_map); i++) {
if (IsEqualGUID (raw_video_format_map[i].mf_format, *subtype))
return raw_video_format_map[i].format;
}
return GST_VIDEO_FORMAT_UNKNOWN;
}
const GUID *
gst_mf_video_subtype_from_video_format (GstVideoFormat format)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (raw_video_format_map); i++) {
if (raw_video_format_map[i].format == format)
return &raw_video_format_map[i].mf_format;
}
return nullptr;
}
static GstCaps *
gst_mf_media_type_to_video_caps (IMFMediaType * media_type)
{
HRESULT hr;
GstCaps *caps = nullptr;
gint i;
guint32 width = 0;
guint32 height = 0;
guint32 num, den;
guint32 val;
gchar *str;
GUID subtype;
GstVideoChromaSite chroma_site;
GstVideoColorimetry colorimetry;
gboolean raw_format = TRUE;
hr = media_type->GetGUID (MF_MT_SUBTYPE, &subtype);
if (FAILED (hr)) {
GST_WARNING ("Failed to get subtype, hr: 0x%x", (guint) hr);
return nullptr;
}
for (i = 0; i < G_N_ELEMENTS (raw_video_format_map); i++) {
if (IsEqualGUID (raw_video_format_map[i].mf_format, subtype)) {
caps = gst_caps_from_string (raw_video_format_map[i].caps_string);
break;
}
}
if (!caps) {
for (i = 0; i < G_N_ELEMENTS (encoded_video_format_map); i++) {
if (IsEqualGUID (encoded_video_format_map[i].mf_format, subtype)) {
caps = gst_caps_from_string (encoded_video_format_map[i].caps_string);
raw_format = FALSE;
break;
}
}
}
if (!caps) {
GST_WARNING ("Unknown format %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (subtype.Data1));
return nullptr;
}
hr = MFGetAttributeSize (media_type, MF_MT_FRAME_SIZE, &width, &height);
if (FAILED (hr) || !width || !height) {
GST_WARNING ("Couldn't get frame size, hr: 0x%x", (guint) hr);
if (raw_format) {
gst_caps_unref (caps);
return nullptr;
}
}
if (width > 0 && height > 0) {
gst_caps_set_simple (caps, "width", G_TYPE_INT, width,
"height", G_TYPE_INT, height, nullptr);
}
hr = MFGetAttributeRatio (media_type, MF_MT_FRAME_RATE, &num, &den);
if (SUCCEEDED (hr) && num > 0 && den > 0)
gst_caps_set_simple (caps, "framerate", GST_TYPE_FRACTION, num, den,
nullptr);
hr = MFGetAttributeRatio (media_type, MF_MT_PIXEL_ASPECT_RATIO, &num, &den);
if (SUCCEEDED (hr) && num > 0 && den > 0)
gst_caps_set_simple (caps,
"pixel-aspect-ratio", GST_TYPE_FRACTION, num, den, nullptr);
colorimetry.range = GST_VIDEO_COLOR_RANGE_UNKNOWN;
colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_UNKNOWN;
colorimetry.transfer = GST_VIDEO_TRANSFER_UNKNOWN;
colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_UNKNOWN;
hr = media_type->GetUINT32 (MF_MT_VIDEO_NOMINAL_RANGE, &val);
if (SUCCEEDED (hr)) {
switch (val) {
case MFNominalRange_0_255:
colorimetry.range = GST_VIDEO_COLOR_RANGE_0_255;
break;
case MFNominalRange_16_235:
colorimetry.range = GST_VIDEO_COLOR_RANGE_16_235;
break;
default:
break;
}
}
hr = media_type->GetUINT32 (MF_MT_VIDEO_PRIMARIES, &val);
if (SUCCEEDED (hr)) {
switch (val) {
case MFVideoPrimaries_BT709:
colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_BT709;
break;
case MFVideoPrimaries_BT470_2_SysM:
colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_BT470M;
break;
case MFVideoPrimaries_BT470_2_SysBG:
colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_BT470BG;
break;
case MFVideoPrimaries_SMPTE170M:
colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_SMPTE170M;
break;
case MFVideoPrimaries_SMPTE240M:
colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_SMPTE240M;
break;
case MFVideoPrimaries_EBU3213:
colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_EBU3213;
break;
case MFVideoPrimaries_BT2020:
colorimetry.primaries = GST_VIDEO_COLOR_PRIMARIES_BT2020;
break;
default:
GST_FIXME ("unhandled color primaries %d", val);
break;
}
}
hr = media_type->GetUINT32 (MF_MT_YUV_MATRIX, &val);
if (SUCCEEDED (hr)) {
switch (val) {
case MFVideoTransferMatrix_BT709:
colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT709;
break;
case MFVideoTransferMatrix_BT601:
colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT601;
break;
case MFVideoTransferMatrix_SMPTE240M:
colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_SMPTE240M;
break;
case MFVideoTransferMatrix_BT2020_10:
case MFVideoTransferMatrix_BT2020_12:
colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT2020;
break;
default:
GST_FIXME ("unhandled color matrix %d", val);
break;
}
}
hr = media_type->GetUINT32 (MF_MT_TRANSFER_FUNCTION, &val);
if (SUCCEEDED (hr)) {
switch (val) {
case MFVideoTransFunc_10:
colorimetry.transfer = GST_VIDEO_TRANSFER_GAMMA10;
break;
case MFVideoTransFunc_18:
colorimetry.transfer = GST_VIDEO_TRANSFER_GAMMA18;
break;
case MFVideoTransFunc_20:
colorimetry.transfer = GST_VIDEO_TRANSFER_GAMMA20;
break;
case MFVideoTransFunc_22:
colorimetry.transfer = GST_VIDEO_TRANSFER_GAMMA22;
break;
case MFVideoTransFunc_709:
case MFVideoTransFunc_709_sym:
colorimetry.transfer = GST_VIDEO_TRANSFER_BT709;
break;
case MFVideoTransFunc_240M:
colorimetry.transfer = GST_VIDEO_TRANSFER_SMPTE240M;
break;
case MFVideoTransFunc_sRGB:
colorimetry.transfer = GST_VIDEO_TRANSFER_SRGB;
break;
case MFVideoTransFunc_28:
colorimetry.transfer = GST_VIDEO_TRANSFER_GAMMA28;
break;
case MFVideoTransFunc_Log_100:
colorimetry.transfer = GST_VIDEO_TRANSFER_LOG100;
break;
case MFVideoTransFunc_Log_316:
colorimetry.transfer = GST_VIDEO_TRANSFER_LOG316;
break;
case MFVideoTransFunc_2020_const:
case MFVideoTransFunc_2020:
colorimetry.transfer = GST_VIDEO_TRANSFER_BT2020_10;
break;
case MFVideoTransFunc_2084:
colorimetry.transfer = GST_VIDEO_TRANSFER_SMPTE2084;
break;
case MFVideoTransFunc_HLG:
colorimetry.transfer = GST_VIDEO_TRANSFER_ARIB_STD_B67;
break;
default:
GST_FIXME ("unhandled color transfer %d", val);
break;
}
}
str = gst_video_colorimetry_to_string (&colorimetry);
if (str) {
gst_caps_set_simple (caps, "colorimetry", G_TYPE_STRING, str, nullptr);
g_free (str);
str = nullptr;
}
chroma_site = GST_VIDEO_CHROMA_SITE_UNKNOWN;
hr = media_type->GetUINT32 (MF_MT_VIDEO_CHROMA_SITING, &val);
if (SUCCEEDED (hr)) {
gboolean known_value = TRUE;
if ((val & MFVideoChromaSubsampling_MPEG2) ==
MFVideoChromaSubsampling_MPEG2) {
chroma_site = GST_VIDEO_CHROMA_SITE_MPEG2;
} else if ((val & MFVideoChromaSubsampling_DV_PAL) ==
MFVideoChromaSubsampling_DV_PAL) {
chroma_site = GST_VIDEO_CHROMA_SITE_DV;
} else if ((val & MFVideoChromaSubsampling_Cosited) ==
MFVideoChromaSubsampling_Cosited) {
chroma_site = GST_VIDEO_CHROMA_SITE_COSITED;
} else {
known_value = FALSE;
}
GST_LOG ("have %s chroma site value 0x%x",
known_value ? "known" : "unknown", val);
}
if (chroma_site != GST_VIDEO_CHROMA_SITE_UNKNOWN)
gst_caps_set_simple (caps, "chroma-site", G_TYPE_STRING,
gst_video_chroma_to_string (chroma_site), nullptr);
return caps;
}
/* Desktop only defines */
#ifndef KSAUDIO_SPEAKER_MONO
#define KSAUDIO_SPEAKER_MONO (SPEAKER_FRONT_CENTER)
#endif
#ifndef KSAUDIO_SPEAKER_1POINT1
#define KSAUDIO_SPEAKER_1POINT1 (SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY)
#endif
#ifndef KSAUDIO_SPEAKER_STEREO
#define KSAUDIO_SPEAKER_STEREO (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT)
#endif
#ifndef KSAUDIO_SPEAKER_2POINT1
#define KSAUDIO_SPEAKER_2POINT1 (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_LOW_FREQUENCY)
#endif
#ifndef KSAUDIO_SPEAKER_3POINT0
#define KSAUDIO_SPEAKER_3POINT0 (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER)
#endif
#ifndef KSAUDIO_SPEAKER_3POINT1
#define KSAUDIO_SPEAKER_3POINT1 (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | \
SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY)
#endif
#ifndef KSAUDIO_SPEAKER_QUAD
#define KSAUDIO_SPEAKER_QUAD (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | \
SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT)
#endif
#define KSAUDIO_SPEAKER_SURROUND (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | \
SPEAKER_FRONT_CENTER | SPEAKER_BACK_CENTER)
#ifndef KSAUDIO_SPEAKER_5POINT0
#define KSAUDIO_SPEAKER_5POINT0 (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | \
SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT)
#endif
#define KSAUDIO_SPEAKER_5POINT1 (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | \
SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | \
SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT)
#ifndef KSAUDIO_SPEAKER_7POINT0
#define KSAUDIO_SPEAKER_7POINT0 (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | \
SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT | \
SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT)
#endif
#ifndef KSAUDIO_SPEAKER_7POINT1
#define KSAUDIO_SPEAKER_7POINT1 (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | \
SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | \
SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT | \
SPEAKER_FRONT_LEFT_OF_CENTER | SPEAKER_FRONT_RIGHT_OF_CENTER)
#endif
static struct
{
guint64 mf_pos;
GstAudioChannelPosition gst_pos;
} mf_to_gst_pos[] = {
{SPEAKER_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT},
{SPEAKER_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT},
{SPEAKER_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER},
{SPEAKER_LOW_FREQUENCY, GST_AUDIO_CHANNEL_POSITION_LFE1},
{SPEAKER_BACK_LEFT, GST_AUDIO_CHANNEL_POSITION_REAR_LEFT},
{SPEAKER_BACK_RIGHT, GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT},
{SPEAKER_FRONT_LEFT_OF_CENTER,
GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER},
{SPEAKER_FRONT_RIGHT_OF_CENTER,
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER},
{SPEAKER_BACK_CENTER, GST_AUDIO_CHANNEL_POSITION_REAR_CENTER},
/* Enum values diverge from this point onwards */
{SPEAKER_SIDE_LEFT, GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT},
{SPEAKER_SIDE_RIGHT, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT},
{SPEAKER_TOP_CENTER, GST_AUDIO_CHANNEL_POSITION_TOP_CENTER},
{SPEAKER_TOP_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_LEFT},
{SPEAKER_TOP_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_CENTER},
{SPEAKER_TOP_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_RIGHT},
{SPEAKER_TOP_BACK_LEFT, GST_AUDIO_CHANNEL_POSITION_TOP_REAR_LEFT},
{SPEAKER_TOP_BACK_CENTER, GST_AUDIO_CHANNEL_POSITION_TOP_REAR_CENTER},
{SPEAKER_TOP_BACK_RIGHT, GST_AUDIO_CHANNEL_POSITION_TOP_REAR_RIGHT}
};
/* *INDENT-OFF* */
static DWORD default_ch_masks[] = {
0,
KSAUDIO_SPEAKER_MONO,
/* 2ch */
KSAUDIO_SPEAKER_STEREO,
/* 2.1ch */
/* KSAUDIO_SPEAKER_3POINT0 ? */
KSAUDIO_SPEAKER_2POINT1,
/* 4ch */
/* KSAUDIO_SPEAKER_3POINT1 or KSAUDIO_SPEAKER_SURROUND ? */
KSAUDIO_SPEAKER_QUAD,
/* 5ch */
KSAUDIO_SPEAKER_5POINT0,
/* 5.1ch */
KSAUDIO_SPEAKER_5POINT1,
/* 7ch */
KSAUDIO_SPEAKER_7POINT0,
/* 7.1ch */
KSAUDIO_SPEAKER_7POINT1,
};
/* *INDENT-ON* */
static void
gst_mf_media_audio_channel_mask_to_position (guint channels, DWORD mask,
GstAudioChannelPosition * position)
{
guint i, ch;
for (i = 0, ch = 0; i < G_N_ELEMENTS (mf_to_gst_pos) && ch < channels; i++) {
if ((mask & mf_to_gst_pos[i].mf_pos) == 0)
continue;
position[ch] = mf_to_gst_pos[i].gst_pos;
ch++;
}
}
static GstCaps *
gst_mf_media_type_to_audio_caps (IMFMediaType * media_type)
{
GUID subtype;
HRESULT hr;
UINT32 bps;
GstAudioFormat format = GST_AUDIO_FORMAT_UNKNOWN;
GstAudioInfo info;
UINT32 rate, channels, mask;
GstAudioChannelPosition position[64];
hr = media_type->GetGUID (MF_MT_SUBTYPE, &subtype);
if (FAILED (hr)) {
GST_WARNING ("failed to get subtype, hr: 0x%x", (guint) hr);
return nullptr;
}
if (!IsEqualGUID (subtype, MFAudioFormat_PCM) &&
!IsEqualGUID (subtype, MFAudioFormat_Float)) {
GST_FIXME ("Unknown subtype");
return nullptr;
}
hr = media_type->GetUINT32 (MF_MT_AUDIO_BITS_PER_SAMPLE, &bps);
if (FAILED (hr)) {
GST_WARNING ("Failed to get bps, hr: 0x%x", (guint) hr);
return nullptr;
}
if (IsEqualGUID (subtype, MFAudioFormat_PCM)) {
format = gst_audio_format_build_integer (TRUE, G_LITTLE_ENDIAN, bps, bps);
} else if (bps == 32) {
format = GST_AUDIO_FORMAT_F32LE;
} else if (bps == 64) {
format = GST_AUDIO_FORMAT_F64LE;
}
if (format == GST_AUDIO_FORMAT_UNKNOWN) {
GST_WARNING ("Unknown audio format");
return nullptr;
}
hr = media_type->GetUINT32 (MF_MT_AUDIO_NUM_CHANNELS, &channels);
if (FAILED (hr) || channels == 0) {
GST_WARNING ("Unknown channels");
return nullptr;
}
hr = media_type->GetUINT32 (MF_MT_AUDIO_SAMPLES_PER_SECOND, &rate);
if (FAILED (hr) || rate == 0) {
GST_WARNING ("Unknown rate");
return nullptr;
}
for (guint i = 0; i < G_N_ELEMENTS (position); i++)
position[i] = GST_AUDIO_CHANNEL_POSITION_NONE;
hr = media_type->GetUINT32 (MF_MT_AUDIO_CHANNEL_MASK, &mask);
if (FAILED (hr)) {
if (channels == 1) {
position[0] = GST_AUDIO_CHANNEL_POSITION_MONO;
} else if (channels == 2) {
position[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
position[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
} else if (channels <= 8) {
GST_WARNING ("Unknown channel position, use default value");
gst_mf_media_audio_channel_mask_to_position (channels,
default_ch_masks[channels], position);
} else {
GST_WARNING ("Failed to determine channel position");
return nullptr;
}
} else {
gst_mf_media_audio_channel_mask_to_position (channels, mask, position);
}
gst_audio_info_set_format (&info, format, rate, channels, position);
return gst_audio_info_to_caps (&info);
}
GstCaps *
gst_mf_media_type_to_caps (IMFMediaType * media_type)
{
GUID major_type;
HRESULT hr;
g_return_val_if_fail (media_type != nullptr, nullptr);
hr = media_type->GetMajorType (&major_type);
if (FAILED (hr)) {
GST_WARNING ("failed to get major type, hr: 0x%x", (guint) hr);
return nullptr;
}
if (IsEqualGUID (major_type, MFMediaType_Video)) {
return gst_mf_media_type_to_video_caps (media_type);
} else if (IsEqualGUID (major_type, MFMediaType_Audio)) {
return gst_mf_media_type_to_audio_caps (media_type);
}
return nullptr;
}
void
gst_mf_media_type_release (IMFMediaType * media_type)
{
if (media_type)
media_type->Release ();
}
gboolean
gst_mf_update_video_info_with_stride (GstVideoInfo * info, gint stride)
{
guint width, height, cr_h;
g_return_val_if_fail (info != nullptr, FALSE);
g_return_val_if_fail (stride > 0, FALSE);
g_return_val_if_fail (GST_VIDEO_INFO_FORMAT (info)
!= GST_VIDEO_FORMAT_UNKNOWN, FALSE);
if (GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_FORMAT_ENCODED)
return TRUE;
width = GST_VIDEO_INFO_WIDTH (info);
height = GST_VIDEO_INFO_HEIGHT (info);
/* copied from video-info */
switch (GST_VIDEO_INFO_FORMAT (info)) {
/* RGB */
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_RGB16:
case GST_VIDEO_FORMAT_BGR15:
case GST_VIDEO_FORMAT_BGR:
info->stride[0] = stride;
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
/* packed YUV */
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_YVYU:
case GST_VIDEO_FORMAT_UYVY:
case GST_VIDEO_FORMAT_VUYA:
info->stride[0] = stride;
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
/* semi-planar */
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_P010_10LE:
case GST_VIDEO_FORMAT_P016_LE:
if (height % 2) {
GST_ERROR ("Height must be even number");
return FALSE;
}
cr_h = height / 2;
info->stride[0] = stride;
info->stride[1] = info->stride[0];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->size = info->offset[1] + info->stride[0] * cr_h;
break;
/* planar */
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
if (stride % 2) {
GST_ERROR ("Stride must be even number");
return FALSE;
}
if (height % 2) {
GST_ERROR ("Height must be even number");
return FALSE;
}
cr_h = height / 2;
info->stride[0] = stride;
info->stride[1] = stride / 2;
info->stride[2] = info->stride[1];
info->offset[0] = 0;
info->offset[1] = info->stride[0] * height;
info->offset[2] = info->offset[1] + info->stride[1] * cr_h;
info->size = info->offset[2] + info->stride[2] * cr_h;
break;
/* complex */
case GST_VIDEO_FORMAT_v210:
case GST_VIDEO_FORMAT_v216:
info->stride[0] = stride;
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
/* gray */
case GST_VIDEO_FORMAT_GRAY16_LE:
info->stride[0] = stride;
info->offset[0] = 0;
info->size = info->stride[0] * height;
break;
default:
GST_ERROR ("Unhandled format %s",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (info)));
return FALSE;
}
return TRUE;
}
gboolean
_gst_mf_result (HRESULT hr, GstDebugCategory * cat, const gchar * file,
const gchar * function, gint line)
{
#ifndef GST_DISABLE_GST_DEBUG
gboolean ret = TRUE;
if (FAILED (hr)) {
gchar *error_text = nullptr;
error_text = g_win32_error_message ((gint) hr);
/* g_win32_error_message() doesn't cover all HERESULT return code,
* so it could be empty string, or null if there was an error
* in g_utf16_to_utf8() */
gst_debug_log (cat, GST_LEVEL_WARNING, file, function, line,
nullptr, "MediaFoundation call failed: 0x%x, %s", (guint) hr,
GST_STR_NULL (error_text));
g_free (error_text);
ret = FALSE;
}
return ret;
#else
return SUCCEEDED (hr);
#endif
}
/* Reference:
* https://docs.microsoft.com/en-us/windows/win32/medfound/media-type-debugging-code */
#define GST_MF_IF_EQUAL_RETURN(guid,val) G_STMT_START { \
if (IsEqualGUID (guid, val)) \
return G_STRINGIFY (val); \
} G_STMT_END
static const gchar *
gst_mf_guid_to_static_string (const GUID & guid)
{
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_MAJOR_TYPE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_MAJOR_TYPE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_SUBTYPE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_ALL_SAMPLES_INDEPENDENT);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_FIXED_SIZE_SAMPLES);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_COMPRESSED);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_SAMPLE_SIZE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_WRAPPED_TYPE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_NUM_CHANNELS);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_SAMPLES_PER_SECOND);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_FLOAT_SAMPLES_PER_SECOND);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_AVG_BYTES_PER_SECOND);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_BLOCK_ALIGNMENT);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_BITS_PER_SAMPLE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_VALID_BITS_PER_SAMPLE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_SAMPLES_PER_BLOCK);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_CHANNEL_MASK);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_FOLDDOWN_MATRIX);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_WMADRC_PEAKREF);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_WMADRC_PEAKTARGET);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_WMADRC_AVGREF);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_WMADRC_AVGTARGET);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AUDIO_PREFER_WAVEFORMATEX);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AAC_PAYLOAD_TYPE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AAC_AUDIO_PROFILE_LEVEL_INDICATION);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_FRAME_SIZE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_FRAME_RATE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_FRAME_RATE_RANGE_MAX);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_FRAME_RATE_RANGE_MIN);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_PIXEL_ASPECT_RATIO);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_DRM_FLAGS);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_PAD_CONTROL_FLAGS);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_SOURCE_CONTENT_HINT);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_VIDEO_CHROMA_SITING);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_INTERLACE_MODE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_TRANSFER_FUNCTION);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_VIDEO_PRIMARIES);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_YUV_MATRIX);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_VIDEO_LIGHTING);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_VIDEO_NOMINAL_RANGE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_GEOMETRIC_APERTURE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_MINIMUM_DISPLAY_APERTURE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_PAN_SCAN_APERTURE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_PAN_SCAN_ENABLED);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AVG_BITRATE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AVG_BIT_ERROR_RATE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_MAX_KEYFRAME_SPACING);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_DEFAULT_STRIDE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_PALETTE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_USER_DATA);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_MPEG_START_TIME_CODE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_MPEG2_PROFILE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_MPEG2_LEVEL);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_MPEG2_FLAGS);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_MPEG_SEQUENCE_HEADER);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_DV_AAUX_SRC_PACK_0);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_DV_AAUX_CTRL_PACK_0);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_DV_AAUX_SRC_PACK_1);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_DV_AAUX_CTRL_PACK_1);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_DV_VAUX_SRC_PACK);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_DV_VAUX_CTRL_PACK);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_IMAGE_LOSS_TOLERANT);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_MPEG4_SAMPLE_DESCRIPTION);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_MPEG4_CURRENT_SAMPLE_ENTRY);
GST_MF_IF_EQUAL_RETURN (guid, MFMediaType_Audio);
GST_MF_IF_EQUAL_RETURN (guid, MFMediaType_Video);
GST_MF_IF_EQUAL_RETURN (guid, MFMediaType_Protected);
GST_MF_IF_EQUAL_RETURN (guid, MFMediaType_SAMI);
GST_MF_IF_EQUAL_RETURN (guid, MFMediaType_Script);
GST_MF_IF_EQUAL_RETURN (guid, MFMediaType_Image);
GST_MF_IF_EQUAL_RETURN (guid, MFMediaType_HTML);
GST_MF_IF_EQUAL_RETURN (guid, MFMediaType_Binary);
GST_MF_IF_EQUAL_RETURN (guid, MFMediaType_FileTransfer);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_AI44);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_ARGB32);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_AYUV);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_DV25);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_DV50);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_DVH1);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_DVSD);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_DVSL);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_H264);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_H265);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_HEVC);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_HEVC_ES);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_I420);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_IYUV);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_M4S2);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_MJPG);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_MP43);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_MP4S);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_MP4V);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_MPG1);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_MSS1);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_MSS2);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_NV11);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_NV12);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_P010);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_P016);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_P210);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_P216);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_RGB24);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_RGB32);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_RGB555);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_RGB565);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_RGB8);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_UYVY);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_v210);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_v410);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_VP80);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_VP90);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_WMV1);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_WMV2);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_WMV3);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_WVC1);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_Y210);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_Y216);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_Y410);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_Y416);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_Y41P);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_Y41T);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_YUY2);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_YV12);
GST_MF_IF_EQUAL_RETURN (guid, MFVideoFormat_YVYU);
/* WAVE_FORMAT_PCM */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_PCM);
/* WAVE_FORMAT_IEEE_FLOAT */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_Float);
/* WAVE_FORMAT_DTS */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_DTS);
/* WAVE_FORMAT_DOLBY_AC3_SPDIF */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_Dolby_AC3_SPDIF);
/* WAVE_FORMAT_DRM */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_DRM);
/* WAVE_FORMAT_WMAUDIO2 */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_WMAudioV8);
/* WAVE_FORMAT_WMAUDIO3 */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_WMAudioV9);
/* WAVE_FORMAT_WMAUDIO_LOSSLESS */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_WMAudio_Lossless);
/* WAVE_FORMAT_WMASPDIF */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_WMASPDIF);
/* WAVE_FORMAT_WMAVOICE9 */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_MSP1);
/* WAVE_FORMAT_MPEGLAYER3 */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_MP3);
/* WAVE_FORMAT_MPEG */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_MPEG);
/* WAVE_FORMAT_MPEG_HEAAC */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_AAC);
/* WAVE_FORMAT_MPEG_ADTS_AAC */
GST_MF_IF_EQUAL_RETURN (guid, MFAudioFormat_ADTS);
#if GST_MF_WINAPI_DESKTOP
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_CUSTOM_VIDEO_PRIMARIES);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_AM_FORMAT_TYPE);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_ARBITRARY_HEADER);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_ARBITRARY_FORMAT);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_ORIGINAL_4CC);
GST_MF_IF_EQUAL_RETURN (guid, MF_MT_ORIGINAL_WAVE_FORMAT_TAG);
#endif
return nullptr;
}
static gchar *
gst_mf_guid_to_string (const GUID & guid)
{
const gchar *str = nullptr;
HRESULT hr;
WCHAR *name = nullptr;
gchar *ret = nullptr;
str = gst_mf_guid_to_static_string (guid);
if (str)
return g_strdup (str);
hr = StringFromCLSID (guid, &name);
if (gst_mf_result (hr) && name) {
ret =
g_utf16_to_utf8 ((const gunichar2 *) name, -1, nullptr, nullptr,
nullptr);
CoTaskMemFree (name);
if (ret)
return ret;
}
ret = g_strdup_printf
("%8.8x-%4.4x-%4.4x-%2.2x%2.2x-%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x",
(guint) guid.Data1, (guint) guid.Data2, (guint) guid.Data3,
guid.Data4[0], guid.Data4[1], guid.Data4[2], guid.Data4[3],
guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7]);
return ret;
}
static gchar *
gst_mf_attribute_value_to_string (const GUID & guid, const PROPVARIANT & var)
{
if (IsEqualGUID (guid, MF_MT_FRAME_RATE) ||
IsEqualGUID (guid, MF_MT_FRAME_RATE_RANGE_MAX) ||
IsEqualGUID (guid, MF_MT_FRAME_RATE_RANGE_MIN) ||
IsEqualGUID (guid, MF_MT_FRAME_SIZE) ||
IsEqualGUID (guid, MF_MT_PIXEL_ASPECT_RATIO)) {
UINT32 high = 0, low = 0;
Unpack2UINT32AsUINT64 (var.uhVal.QuadPart, &high, &low);
return g_strdup_printf ("%dx%d", high, low);
}
if (IsEqualGUID (guid, MF_MT_GEOMETRIC_APERTURE) ||
IsEqualGUID (guid, MF_MT_MINIMUM_DISPLAY_APERTURE) ||
IsEqualGUID (guid, MF_MT_PAN_SCAN_APERTURE)) {
/* FIXME: Not our usecase for now */
return g_strdup ("Not parsed");
}
switch (var.vt) {
case VT_UI4:
return g_strdup_printf ("%d", var.ulVal);
case VT_UI8:
return g_strdup_printf ("%" G_GUINT64_FORMAT, var.uhVal);
case VT_R8:
return g_strdup_printf ("%f", var.dblVal);
case VT_CLSID:
return gst_mf_guid_to_string (*var.puuid);
case VT_LPWSTR:
return g_utf16_to_utf8 ((const gunichar2 *) var.pwszVal,
-1, nullptr, nullptr, nullptr);
case VT_UNKNOWN:
return g_strdup ("IUnknown");
default:
return g_strdup_printf ("Unhandled type (vt = %d)", var.vt);
}
return nullptr;
}
static void
gst_mf_dump_attribute_value_by_index (IMFAttributes * attr, const gchar * msg,
guint index, GstDebugLevel level, GstDebugCategory * cat,
const gchar * file, const gchar * function, gint line)
{
gchar *guid_name = nullptr;
gchar *value = nullptr;
GUID guid = GUID_NULL;
HRESULT hr;
PROPVARIANT var;
PropVariantInit (&var);
hr = attr->GetItemByIndex (index, &guid, &var);
if (!gst_mf_result (hr))
goto done;
guid_name = gst_mf_guid_to_string (guid);
if (!guid_name)
goto done;
value = gst_mf_attribute_value_to_string (guid, var);
if (!value)
goto done;
gst_debug_log (cat, level, file, function, line,
nullptr, "%s attribute %d, %s: %s", msg ? msg : "", index, guid_name,
value);
done:
PropVariantClear (&var);
g_free (guid_name);
g_free (value);
}
void
_gst_mf_dump_attributes (IMFAttributes * attr, const gchar * msg,
GstDebugLevel level, GstDebugCategory * cat, const gchar * file,
const gchar * function, gint line)
{
#ifndef GST_DISABLE_GST_DEBUG
HRESULT hr;
UINT32 count = 0, i;
if (!attr)
return;
hr = attr->GetCount (&count);
if (!gst_mf_result (hr) || count == 0)
return;
for (i = 0; i < count; i++) {
gst_mf_dump_attribute_value_by_index (attr,
msg, i, level, cat, file, function, line);
}
#endif
}
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