104 std::cout << std::fixed << std::setprecision(2) << std::boolalpha;
105 std::cout <<
"----------------------------" << std::endl;
106 std::cout <<
"----- File Information -----" << std::endl;
107 std::cout <<
"----------------------------" << std::endl;
108 std::cout <<
"--> Has Video: " <<
info.
has_video << std::endl;
109 std::cout <<
"--> Has Audio: " <<
info.
has_audio << std::endl;
111 std::cout <<
"--> Duration: " <<
info.
duration <<
" Seconds" << std::endl;
112 std::cout <<
"--> File Size: " << double(
info.
file_size) / 1024 / 1024 <<
" MB" << std::endl;
113 std::cout <<
"----------------------------" << std::endl;
114 std::cout <<
"----- Video Attributes -----" << std::endl;
115 std::cout <<
"----------------------------" << std::endl;
116 std::cout <<
"--> Width: " <<
info.
width << std::endl;
117 std::cout <<
"--> Height: " <<
info.
height << std::endl;
120 std::cout <<
"--> Video Bit Rate: " <<
info.
video_bit_rate/1000 <<
" kb/s" << std::endl;
123 std::cout <<
"--> Video Codec: " <<
info.
vcodec << std::endl;
124 std::cout <<
"--> Video Length: " <<
info.
video_length <<
" Frames" << std::endl;
129 std::cout <<
"----------------------------" << std::endl;
130 std::cout <<
"----- Audio Attributes -----" << std::endl;
131 std::cout <<
"----------------------------" << std::endl;
132 std::cout <<
"--> Audio Codec: " <<
info.
acodec << std::endl;
133 std::cout <<
"--> Audio Bit Rate: " <<
info.
audio_bit_rate/1000 <<
" kb/s" << std::endl;
134 std::cout <<
"--> Sample Rate: " <<
info.
sample_rate <<
" Hz" << std::endl;
135 std::cout <<
"--> # of Channels: " <<
info.
channels << std::endl;
139 std::cout <<
"----------------------------" << std::endl;
158 std::stringstream filesize_stream;
160 root[
"file_size"] = filesize_stream.str();
164 root[
"fps"] = Json::Value(Json::objectValue);
168 root[
"pixel_ratio"] = Json::Value(Json::objectValue);
171 root[
"display_ratio"] = Json::Value(Json::objectValue);
175 std::stringstream video_length_stream;
177 root[
"video_length"] = video_length_stream.str();
179 root[
"video_timebase"] = Json::Value(Json::objectValue);
190 root[
"audio_timebase"] = Json::Value(Json::objectValue);
208 catch (
const std::exception& e)
211 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
219 if (!root[
"has_video"].isNull())
221 if (!root[
"has_audio"].isNull())
223 if (!root[
"has_single_image"].isNull())
225 if (!root[
"duration"].isNull())
227 if (!root[
"file_size"].isNull())
229 if (!root[
"height"].isNull())
231 if (!root[
"width"].isNull())
233 if (!root[
"pixel_format"].isNull())
235 if (!root[
"fps"].isNull() && root[
"fps"].isObject()) {
236 if (!root[
"fps"][
"num"].isNull())
238 if (!root[
"fps"][
"den"].isNull())
241 if (!root[
"video_bit_rate"].isNull())
243 if (!root[
"pixel_ratio"].isNull() && root[
"pixel_ratio"].isObject()) {
244 if (!root[
"pixel_ratio"][
"num"].isNull())
246 if (!root[
"pixel_ratio"][
"den"].isNull())
249 if (!root[
"display_ratio"].isNull() && root[
"display_ratio"].isObject()) {
250 if (!root[
"display_ratio"][
"num"].isNull())
252 if (!root[
"display_ratio"][
"den"].isNull())
255 if (!root[
"vcodec"].isNull())
257 if (!root[
"video_length"].isNull())
259 if (!root[
"video_stream_index"].isNull())
261 if (!root[
"video_timebase"].isNull() && root[
"video_timebase"].isObject()) {
262 if (!root[
"video_timebase"][
"num"].isNull())
264 if (!root[
"video_timebase"][
"den"].isNull())
267 if (!root[
"interlaced_frame"].isNull())
269 if (!root[
"top_field_first"].isNull())
271 if (!root[
"acodec"].isNull())
274 if (!root[
"audio_bit_rate"].isNull())
276 if (!root[
"sample_rate"].isNull())
278 if (!root[
"channels"].isNull())
280 if (!root[
"channel_layout"].isNull())
282 if (!root[
"audio_stream_index"].isNull())
284 if (!root[
"audio_timebase"].isNull() && root[
"audio_timebase"].isObject()) {
285 if (!root[
"audio_timebase"][
"num"].isNull())
287 if (!root[
"audio_timebase"][
"den"].isNull())
int channels
The number of audio channels used in the audio stream.
int num
Numerator for the fraction.
WriterInfo info
Information about the current media file.
int video_bit_rate
The bit rate of the video stream (in bytes)
void SetJson(const std::string value)
Load JSON string into this object.
int width
The width of the video (in pixesl)
int64_t video_length
The number of frames in the video stream.
float duration
Length of time (in seconds)
void DisplayInfo()
Display file information in the standard output stream (stdout)
openshot::Fraction display_ratio
The ratio of width to height of the video stream (i.e. 640x480 has a ratio of 4/3) ...
double ToDouble() const
Return this fraction as a double (i.e. 1/2 = 0.5)
WriterBase()
Constructor for WriterBase class, many things are initialized here.
const Json::Value stringToJson(const std::string value)
This abstract class is the base class, used by all readers in libopenshot.
int width
The width of the video (in pixels)
int audio_bit_rate
The bit rate of the audio stream (in bytes)
openshot::Fraction video_timebase
The video timebase determines how long each frame stays on the screen.
std::string acodec
The name of the audio codec used to encode / decode the video stream.
bool has_video
Determines if this file has a video stream.
openshot::ChannelLayout channel_layout
The channel layout (mono, stereo, 5 point surround, etc...)
openshot::Fraction pixel_ratio
The pixel ratio of the video stream as a fraction (i.e. some pixels are not square) ...
int64_t file_size
Size of file (in bytes)
int64_t file_size
Size of file (in bytes)
int video_stream_index
The index of the video stream.
float duration
Length of time (in seconds)
int audio_bit_rate
The bit rate of the audio stream (in bytes)
Header file for all Exception classes.
bool has_audio
Determines if this file has an audio stream.
int audio_stream_index
The index of the audio stream.
int64_t video_length
The number of frames in the video stream.
int height
The height of the video (in pixels)
bool top_field_first
Which interlaced field should be displayed first.
openshot::Fraction video_timebase
The video timebase determines how long each frame stays on the screen.
Header file for WriterBase class.
This class represents a fraction.
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
openshot::ChannelLayout channel_layout
The channel layout (mono, stereo, 5 point surround, etc...)
openshot::Fraction audio_timebase
The audio timebase determines how long each audio packet should be played.
int pixel_format
The pixel format (i.e. YUV420P, RGB24, etc...)
bool has_single_image
Determines if this file only contains a single image.
ChannelLayout
This enumeration determines the audio channel layout (such as stereo, mono, 5 point surround...
bool interlaced_frame
Are the contents of this frame interlaced.
int sample_rate
The number of audio samples per second (44100 is a common sample rate)
openshot::ReaderInfo info
Information about the current media file.
bool has_video
Determines if this file has a video stream.
openshot::Fraction audio_timebase
The audio timebase determines how long each audio packet should be played.
std::string vcodec
The name of the video codec used to encode / decode the video stream.
This namespace is the default namespace for all code in the openshot library.
int audio_stream_index
The index of the audio stream.
Exception for invalid JSON.
int pixel_format
The pixel format (i.e. YUV420P, RGB24, etc...)
openshot::Fraction display_ratio
The ratio of width to height of the video stream (i.e. 640x480 has a ratio of 4/3) ...
Json::Value JsonValue() const
Generate Json::Value for this object.
int video_bit_rate
The bit rate of the video stream (in bytes)
bool has_audio
Determines if this file has an audio stream.
openshot::Fraction pixel_ratio
The pixel ratio of the video stream as a fraction (i.e. some pixels are not square) ...
std::string vcodec
The name of the video codec used to encode / decode the video stream.
int height
The height of the video (in pixels)
int den
Denominator for the fraction.
int channels
The number of audio channels used in the audio stream.
int video_stream_index
The index of the video stream.
void CopyReaderInfo(openshot::ReaderBase *reader)
This method copy's the info struct of a reader, and sets the writer with the same info...
openshot::Fraction fps
Frames per second, as a fraction (i.e. 24/1 = 24 fps)
openshot::Fraction fps
Frames per second, as a fraction (i.e. 24/1 = 24 fps)
bool has_single_image
Determines if this file only contains a single image.
std::string Json() const
Generate JSON string of this object.
std::string acodec
The name of the audio codec used to encode / decode the video stream.
int sample_rate
The number of audio samples per second (44100 is a common sample rate)