[vlmc-devel] [PATCH] ProjectWizard: Add Audio bitrate and Video bitrate
Hugo Beauzée-Luyssen
hugo at beauzee.fr
Sun Apr 10 14:01:35 CEST 2016
On 04/10/2016 11:45 AM, yikei lu wrote:
> MP3[edit]
> 32 kbit/s – generally acceptable only for speech
> 96 kbit/s – generally used for speech or low-quality streaming
> 128 or 160 kbit/s – mid-range bitrate quality
> 192 kbit/s – medium quality bitrate
> 256 kbit/s – a commonly used high-quality bitrate
> 320 kbit/s – highest level supported by the MP3 standard
>
>
> Video[edit]
> 16 kbit/s – videophone quality (minimum necessary for a
> consumer-acceptable "talking head" picture using various video
> compression schemes)
> 128–384 kbit/s – business-oriented videoconferencing quality using
> video compression
> 400 kbit/s YouTube 240p videos (using H.264)[20]
> 750 kbit/s YouTube 360p videos (using H.264)[20]
> 1 Mbit/s YouTube 480p videos (using H.264)[20]
> 1.15 Mbit/s max – VCD quality (using MPEG1 compression)[21]
> 2.5 Mbit/s YouTube 720p videos (using H.264)[20]
> 3.5 Mbit/s typ – Standard-definition television quality (with bit-rate
> reduction from MPEG-2 compression)
> 3.8 Mbit/s YouTube 720p (at 60fps mode) videos (using H.264)[20]
> 4.5 Mbit/s YouTube 1080p videos (using H.264)[20]
> 6.8 Mbit/s YouTube 1080p (at 60 fps mode) videos (using H.264)[20]
> 9.8 Mbit/s max – DVD (using MPEG2 compression)[22]
> 8 to 15 Mbit/s typ – HDTV quality (with bit-rate reduction from MPEG-4
> AVC compression)
> 19 Mbit/s approximate – HDV 720p (using MPEG2 compression)[23]
> 24 Mbit/s max – AVCHD (using MPEG4 AVC compression)[24]
> 25 Mbit/s approximate – HDV 1080i (using MPEG2 compression)[23]
> 29.4 Mbit/s max – HD DVD
> 40 Mbit/s max – 1080p Blu-ray Disc (using MPEG2, MPEG4 AVC or VC-1
> compression)[25]
>
> From Wikipedia. Are those fine?
>
> 2016-04-10 18:16 GMT+09:00 yikei lu <luyikei.qmltu at gmail.com>:
>> Alright, where can I get the list, or can you give one?
>>
>> 2016-04-10 18:06 GMT+09:00 Hugo Beauzée-Luyssen <hugo at beauzee.fr>:
>>>
>>>> On 10 Apr 2016, at 07:04, Yikai Lu <luyikei.qmltu at gmail.com> wrote:
>>>>
>>>> ---
>>>> src/Gui/wizard/ProjectWizard.cpp | 2 +
>>>> src/Gui/wizard/VideoPage.cpp | 2 +
>>>> src/Gui/wizard/ui/VideoPage.ui | 284 ++++++++++++++++++++++-----------------
>>>> 3 files changed, 166 insertions(+), 122 deletions(-)
>>>>
>>>> diff --git a/src/Gui/wizard/ProjectWizard.cpp b/src/Gui/wizard/ProjectWizard.cpp
>>>> index 7354da5..5607b29 100644
>>>> --- a/src/Gui/wizard/ProjectWizard.cpp
>>>> +++ b/src/Gui/wizard/ProjectWizard.cpp
>>>> @@ -112,7 +112,9 @@ ProjectWizard::accept()
>>>> projectPreferences->setValue( "video/VideoProjectHeight", field( "height" ) );
>>>> projectPreferences->setValue( "video/VideoProjectWidth", field( "width" ) );
>>>> projectPreferences->setValue( "video/AspectRatio", field( "aspectratio" ) );
>>>> + projectPreferences->setValue( "video/VideoBitRate", field( "vbitrate" ) );
>>>> projectPreferences->setValue( "audio/AudioSampleRate", field( "samplerate" ) );
>>>> + projectPreferences->setValue( "audio/AudioBitRate", field( "abitrate" ) );
>>>> projectPreferences->setValue( "audio/NbChannels", field( "samplerate" ) );
>>>> }
>>>> QDialog::accept();
>>>> diff --git a/src/Gui/wizard/VideoPage.cpp b/src/Gui/wizard/VideoPage.cpp
>>>> index c49dfea..1700f5c 100644
>>>> --- a/src/Gui/wizard/VideoPage.cpp
>>>> +++ b/src/Gui/wizard/VideoPage.cpp
>>>> @@ -43,6 +43,8 @@ VideoPage::VideoPage( QWidget* parent ) :
>>>> registerField( "aspectratio", ui.lineEditVideoAspectRatio );
>>>> registerField( "samplerate", ui.comboBoxAudioSamplerate );
>>>> registerField( "channels", ui.spinBoxAudioChannels );
>>>> + registerField( "abitrate", ui.spinBoxAudioBitrate );
>>>> + registerField( "vbitrate", ui.spinBoxVideoBitrate );
>>>> }
>>>>
>>>> void
>>>> diff --git a/src/Gui/wizard/ui/VideoPage.ui b/src/Gui/wizard/ui/VideoPage.ui
>>>> index 90f6848..fe50563 100644
>>>> --- a/src/Gui/wizard/ui/VideoPage.ui
>>>> +++ b/src/Gui/wizard/ui/VideoPage.ui
>>>> @@ -30,6 +30,153 @@
>>>> </property>
>>>> </widget>
>>>> </item>
>>>> + <item row="4" column="0" colspan="2">
>>>> + <widget class="QGroupBox" name="groupBox_2">
>>>> + <property name="title">
>>>> + <string>Audio</string>
>>>> + </property>
>>>> + <layout class="QGridLayout" name="gridLayout_3">
>>>> + <item row="1" column="0">
>>>> + <widget class="QLabel" name="label_6">
>>>> + <property name="text">
>>>> + <string>Number of channels</string>
>>>> + </property>
>>>> + </widget>
>>>> + </item>
>>>> + <item row="1" column="2">
>>>> + <widget class="QSpinBox" name="spinBoxAudioChannels">
>>>> + <property name="minimum">
>>>> + <number>1</number>
>>>> + </property>
>>>> + <property name="maximum">
>>>> + <number>2</number>
>>>> + </property>
>>>> + <property name="value">
>>>> + <number>2</number>
>>>> + </property>
>>>> + </widget>
>>>> + </item>
>>>> + <item row="0" column="1" colspan="2">
>>>> + <widget class="QComboBox" name="comboBoxAudioPresets">
>>>> + <item>
>>>> + <property name="text">
>>>> + <string>Custom</string>
>>>> + </property>
>>>> + </item>
>>>> + <item>
>>>> + <property name="text">
>>>> + <string>Stereo</string>
>>>> + </property>
>>>> + </item>
>>>> + <item>
>>>> + <property name="text">
>>>> + <string>Mono</string>
>>>> + </property>
>>>> + </item>
>>>> + </widget>
>>>> + </item>
>>>> + <item row="3" column="0">
>>>> + <widget class="QLabel" name="label_4">
>>>> + <property name="text">
>>>> + <string>Sample rate</string>
>>>> + </property>
>>>> + </widget>
>>>> + </item>
>>>> + <item row="3" column="2">
>>>> + <widget class="QComboBox" name="comboBoxAudioSamplerate">
>>>> + <property name="currentIndex">
>>>> + <number>0</number>
>>>> + </property>
>>>> + <item>
>>>> + <property name="text">
>>>> + <string>48000 Hz</string>
>>>> + </property>
>>>> + </item>
>>>> + <item>
>>>> + <property name="text">
>>>> + <string>44100 Hz</string>
>>>> + </property>
>>>> + </item>
>>>> + <item>
>>>> + <property name="text">
>>>> + <string>22050 Hz</string>
>>>> + </property>
>>>> + </item>
>>>> + <item>
>>>> + <property name="text">
>>>> + <string>11025 Hz</string>
>>>> + </property>
>>>> + </item>
>>>> + </widget>
>>>> + </item>
>>>> + <item row="2" column="0">
>>>> + <widget class="QLabel" name="label_9">
>>>> + <property name="text">
>>>> + <string>Audio bitrate (kbps)</string>
>>>> + </property>
>>>> + </widget>
>>>> + </item>
>>>> + <item row="2" column="2">
>>>> + <widget class="QSpinBox" name="spinBoxAudioBitrate">
>>>> + <property name="minimum">
>>>> + <number>8</number>
>>>> + </property>
>>>> + <property name="maximum">
>>>> + <number>512</number>
>>>> + </property>
>>>> + <property name="value">
>>>> + <number>256</number>
>>>> + </property>
>>>> + </widget>
>>>> + </item>
>>>> + </layout>
>>>> + </widget>
>>>> + </item>
>>>> + <item row="1" column="0" colspan="2">
>>>> + <spacer name="verticalSpacer">
>>>> + <property name="orientation">
>>>> + <enum>Qt::Vertical</enum>
>>>> + </property>
>>>> + <property name="sizeType">
>>>> + <enum>QSizePolicy::Maximum</enum>
>>>> + </property>
>>>> + <property name="sizeHint" stdset="0">
>>>> + <size>
>>>> + <width>20</width>
>>>> + <height>30</height>
>>>> + </size>
>>>> + </property>
>>>> + </spacer>
>>>> + </item>
>>>> + <item row="3" column="0" colspan="2">
>>>> + <spacer name="verticalSpacer_2">
>>>> + <property name="orientation">
>>>> + <enum>Qt::Vertical</enum>
>>>> + </property>
>>>> + <property name="sizeType">
>>>> + <enum>QSizePolicy::Maximum</enum>
>>>> + </property>
>>>> + <property name="sizeHint" stdset="0">
>>>> + <size>
>>>> + <width>20</width>
>>>> + <height>30</height>
>>>> + </size>
>>>> + </property>
>>>> + </spacer>
>>>> + </item>
>>>> + <item row="5" column="0" colspan="2">
>>>> + <spacer name="verticalSpacer_3">
>>>> + <property name="orientation">
>>>> + <enum>Qt::Vertical</enum>
>>>> + </property>
>>>> + <property name="sizeHint" stdset="0">
>>>> + <size>
>>>> + <width>20</width>
>>>> + <height>40</height>
>>>> + </size>
>>>> + </property>
>>>> + </spacer>
>>>> + </item>
>>>> <item row="2" column="0" colspan="2">
>>>> <widget class="QGroupBox" name="groupBox">
>>>> <property name="title">
>>>> @@ -120,6 +267,13 @@
>>>> </property>
>>>> </widget>
>>>> </item>
>>>> + <item row="4" column="2">
>>>> + <widget class="QLineEdit" name="lineEditVideoAspectRatio">
>>>> + <property name="text">
>>>> + <string>16/9</string>
>>>> + </property>
>>>> + </widget>
>>>> + </item>
>>>> <item row="3" column="0">
>>>> <widget class="QLabel" name="label_5">
>>>> <property name="text">
>>>> @@ -143,10 +297,10 @@
>>>> </property>
>>>> </widget>
>>>> </item>
>>>> - <item row="4" column="2">
>>>> - <widget class="QLineEdit" name="lineEditVideoAspectRatio">
>>>> + <item row="5" column="0">
>>>> + <widget class="QLabel" name="label_8">
>>>> <property name="text">
>>>> - <string>16/9</string>
>>>> + <string>Video bitrate (kbps)</string>
>>>> </property>
>>>> </widget>
>>>> </item>
>>>> @@ -157,136 +311,22 @@
>>>> </property>
>>>> </widget>
>>>> </item>
>>>> - </layout>
>>>> - </widget>
>>>> - </item>
>>>> - <item row="4" column="0" colspan="2">
>>>> - <widget class="QGroupBox" name="groupBox_2">
>>>> - <property name="title">
>>>> - <string>Audio</string>
>>>> - </property>
>>>> - <layout class="QGridLayout" name="gridLayout_3">
>>>> - <item row="1" column="0">
>>>> - <widget class="QLabel" name="label_6">
>>>> - <property name="text">
>>>> - <string>Number of channels</string>
>>>> - </property>
>>>> - </widget>
>>>> - </item>
>>>> - <item row="1" column="2">
>>>> - <widget class="QSpinBox" name="spinBoxAudioChannels">
>>>> + <item row="5" column="2">
>>>> + <widget class="QSpinBox" name="spinBoxVideoBitrate">
>>>> <property name="minimum">
>>>> - <number>1</number>
>>>> + <number>8</number>
>>>> </property>
>>>> <property name="maximum">
>>>> - <number>2</number>
>>>> + <number>8192</number>
>>>> </property>
>>>> <property name="value">
>>>> - <number>2</number>
>>>> - </property>
>>>> - </widget>
>>>> - </item>
>>>> - <item row="0" column="1" colspan="2">
>>>> - <widget class="QComboBox" name="comboBoxAudioPresets">
>>>> - <item>
>>>> - <property name="text">
>>>> - <string>Custom</string>
>>>> - </property>
>>>> - </item>
>>>> - <item>
>>>> - <property name="text">
>>>> - <string>Stereo</string>
>>>> - </property>
>>>> - </item>
>>>> - <item>
>>>> - <property name="text">
>>>> - <string>Mono</string>
>>>> - </property>
>>>> - </item>
>>>> - </widget>
>>>> - </item>
>>>> - <item row="2" column="0">
>>>> - <widget class="QLabel" name="label_4">
>>>> - <property name="text">
>>>> - <string>Sample rate</string>
>>>> + <number>4000</number>
>>>> </property>
>>>> </widget>
>>>> </item>
>>>> - <item row="2" column="2">
>>>> - <widget class="QComboBox" name="comboBoxAudioSamplerate">
>>>> - <property name="currentIndex">
>>>> - <number>0</number>
>>>> - </property>
>>>> - <item>
>>>> - <property name="text">
>>>> - <string>48000 Hz</string>
>>>> - </property>
>>>> - </item>
>>>> - <item>
>>>> - <property name="text">
>>>> - <string>44100 Hz</string>
>>>> - </property>
>>>> - </item>
>>>> - <item>
>>>> - <property name="text">
>>>> - <string>22050 Hz</string>
>>>> - </property>
>>>> - </item>
>>>> - <item>
>>>> - <property name="text">
>>>> - <string>11025 Hz</string>
>>>> - </property>
>>>> - </item>
>>>> - </widget>
>>>> - </item>
>>>> </layout>
>>>> </widget>
>>>> </item>
>>>> - <item row="1" column="0" colspan="2">
>>>> - <spacer name="verticalSpacer">
>>>> - <property name="orientation">
>>>> - <enum>Qt::Vertical</enum>
>>>> - </property>
>>>> - <property name="sizeType">
>>>> - <enum>QSizePolicy::Maximum</enum>
>>>> - </property>
>>>> - <property name="sizeHint" stdset="0">
>>>> - <size>
>>>> - <width>20</width>
>>>> - <height>30</height>
>>>> - </size>
>>>> - </property>
>>>> - </spacer>
>>>> - </item>
>>>> - <item row="3" column="0" colspan="2">
>>>> - <spacer name="verticalSpacer_2">
>>>> - <property name="orientation">
>>>> - <enum>Qt::Vertical</enum>
>>>> - </property>
>>>> - <property name="sizeType">
>>>> - <enum>QSizePolicy::Maximum</enum>
>>>> - </property>
>>>> - <property name="sizeHint" stdset="0">
>>>> - <size>
>>>> - <width>20</width>
>>>> - <height>30</height>
>>>> - </size>
>>>> - </property>
>>>> - </spacer>
>>>> - </item>
>>>> - <item row="5" column="0" colspan="2">
>>>> - <spacer name="verticalSpacer_3">
>>>> - <property name="orientation">
>>>> - <enum>Qt::Vertical</enum>
>>>> - </property>
>>>> - <property name="sizeHint" stdset="0">
>>>> - <size>
>>>> - <width>20</width>
>>>> - <height>40</height>
>>>> - </size>
>>>> - </property>
>>>> - </spacer>
>>>> - </item>
>>>> </layout>
>>>> </widget>
>>>> <resources/>
>>>> --
>>>> 1.9.1
>>>>
>>>> _______________________________________________
>>>> Vlmc-devel mailing list
>>>> Vlmc-devel at videolan.org
>>>> https://mailman.videolan.org/listinfo/vlmc-devel
>>>
>>>
>>> I think it would make more sense to expose a list of presets rather than allowing some arbitrary value for the audio samplerate.
>>>
>>> Regards,
>>>
>>> _______________________________________________
>>> Vlmc-devel mailing list
>>> Vlmc-devel at videolan.org
>>> https://mailman.videolan.org/listinfo/vlmc-devel
> _______________________________________________
> Vlmc-devel mailing list
> Vlmc-devel at videolan.org
> https://mailman.videolan.org/listinfo/vlmc-devel
>
Definitely fine for audio, maybe the video list can be a regular
spinbox. Opinions are welcome :)
--
Hugo Beauzée-Luyssen
www.beauzee.fr
More information about the Vlmc-devel
mailing list