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OHOS-Media-Player.md 12.32 KB

# OHOS::Media::Player<a name="ZH-CN_TOPIC_0000001055518100"></a>

## **Overview**<a name="section1568874129093532"></a>

**Related Modules:**

[MultiMedia\_Player](MultiMedia_Player.md)

**Description:**

Provides functions for playing online movies, offline movies, and streams, for example, playing local movies and advanced audio coding \(AAC\) streams.

**Since:**

1.0

**Version:**

1.0

## **Summary**<a name="section1950864612093532"></a>

## Public Member Functions<a name="pub-methods"></a>

<a name="table1771125029093532"></a>
<table><thead align="left"><tr id="row961264618093532"><th class="cellrowborder" valign="top" width="50%" id="mcps1.1.3.1.1"><p id="p1046140620093532"><a name="p1046140620093532"></a><a name="p1046140620093532"></a>Public Member Function Name</p>
</th>
<th class="cellrowborder" valign="top" width="50%" id="mcps1.1.3.1.2"><p id="p1845271014093532"><a name="p1845271014093532"></a><a name="p1845271014093532"></a>Description</p>
</th>
</tr>
</thead>
<tbody><tr id="row1651721594093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p679711223093532"><a name="p679711223093532"></a><a name="p679711223093532"></a><a href="MultiMedia_Player.md#gacce284eac910970e405151fd3a1963c0">SetSource</a> (const <a href="OHOS-Media-Source.md">Source</a> &amp;source)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1617342267093532"><a name="p1617342267093532"></a><a name="p1617342267093532"></a>int32_t&nbsp;</p>
<p id="p1987273262093532"><a name="p1987273262093532"></a><a name="p1987273262093532"></a>Sets the playback source for the player. The corresponding source can be the file descriptor (FD) of the local file, local file URI, network URI, or media stream. </p>
</td>
</tr>
<tr id="row1922237064093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p944666344093532"><a name="p944666344093532"></a><a name="p944666344093532"></a><a href="MultiMedia_Player.md#gade9bff3268e1c409273749a90700e056">Prepare</a> ()</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p777581616093532"><a name="p777581616093532"></a><a name="p777581616093532"></a>int32_t&nbsp;</p>
<p id="p164263961093532"><a name="p164263961093532"></a><a name="p164263961093532"></a>Prepares the playback environment and buffers media data. </p>
</td>
</tr>
<tr id="row408652213093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p579165159093532"><a name="p579165159093532"></a><a name="p579165159093532"></a><a href="MultiMedia_Player.md#gafecbbfe85c70cf4983f52d55b7205e3f">Play</a> ()</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p397554218093532"><a name="p397554218093532"></a><a name="p397554218093532"></a>int32_t&nbsp;</p>
<p id="p1200987988093532"><a name="p1200987988093532"></a><a name="p1200987988093532"></a>Starts or resumes playback. </p>
</td>
</tr>
<tr id="row1523278232093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p2035199649093532"><a name="p2035199649093532"></a><a name="p2035199649093532"></a><a href="MultiMedia_Player.md#gaad6b2c35b1d5dfe453d158f7ff9e1379">IsPlaying</a> ()</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1992325009093532"><a name="p1992325009093532"></a><a name="p1992325009093532"></a>bool&nbsp;</p>
<p id="p1832025519093532"><a name="p1832025519093532"></a><a name="p1832025519093532"></a>Checks whether the player is playing. </p>
</td>
</tr>
<tr id="row1806317422093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1516701848093532"><a name="p1516701848093532"></a><a name="p1516701848093532"></a><a href="MultiMedia_Player.md#gae1d2225ce60a9737cc902e586138a44f">Pause</a> ()</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p106355433093532"><a name="p106355433093532"></a><a name="p106355433093532"></a>int32_t&nbsp;</p>
<p id="p467674694093532"><a name="p467674694093532"></a><a name="p467674694093532"></a>Pauses playback. </p>
</td>
</tr>
<tr id="row786945770093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1277292481093532"><a name="p1277292481093532"></a><a name="p1277292481093532"></a><a href="MultiMedia_Player.md#gafe518a5b909ac0f0f066781caa3b55aa">Stop</a> ()</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p617140000093532"><a name="p617140000093532"></a><a name="p617140000093532"></a>int32_t&nbsp;</p>
<p id="p1588246548093532"><a name="p1588246548093532"></a><a name="p1588246548093532"></a>Stops playback. </p>
</td>
</tr>
<tr id="row2056198647093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p723570447093532"><a name="p723570447093532"></a><a name="p723570447093532"></a><a href="MultiMedia_Player.md#ga406b6277d1e160e691d01f5f740480b3">Rewind</a> (int64_t mSeconds, int32_t mode)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1009332232093532"><a name="p1009332232093532"></a><a name="p1009332232093532"></a>int32_t&nbsp;</p>
<p id="p915851422093532"><a name="p915851422093532"></a><a name="p915851422093532"></a>Changes the playback position. </p>
</td>
</tr>
<tr id="row806393118093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1024992340093532"><a name="p1024992340093532"></a><a name="p1024992340093532"></a><a href="MultiMedia_Player.md#ga23ca57f0b1a288980e37153274c5f8b3">SetVolume</a> (float leftVolume, float rightVolume)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p138191549093532"><a name="p138191549093532"></a><a name="p138191549093532"></a>int32_t&nbsp;</p>
<p id="p1002727884093532"><a name="p1002727884093532"></a><a name="p1002727884093532"></a>Sets the volume of the player. </p>
</td>
</tr>
<tr id="row1336130244093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1710755856093532"><a name="p1710755856093532"></a><a name="p1710755856093532"></a><a href="MultiMedia_Player.md#gac9d62210915ebcf3b462574302018501">SetVideoSurface</a> (<a href="OHOS-Surface.md">Surface</a> *surface)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p2793992093532"><a name="p2793992093532"></a><a name="p2793992093532"></a>int32_t&nbsp;</p>
<p id="p1643496323093532"><a name="p1643496323093532"></a><a name="p1643496323093532"></a>Sets a surface for video playback. </p>
</td>
</tr>
<tr id="row626375792093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1967297420093532"><a name="p1967297420093532"></a><a name="p1967297420093532"></a><a href="MultiMedia_Player.md#gae19989aa6e80b768acd4eb019a2b60d2">EnableSingleLooping</a> (bool loop)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p225100372093532"><a name="p225100372093532"></a><a name="p225100372093532"></a>int32_t&nbsp;</p>
<p id="p1797948204093532"><a name="p1797948204093532"></a><a name="p1797948204093532"></a>Sets loop playback. </p>
</td>
</tr>
<tr id="row522787513093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1102572308093532"><a name="p1102572308093532"></a><a name="p1102572308093532"></a><a href="MultiMedia_Player.md#gae4dd5d8fb92c836f5304f181a40b34d2">IsSingleLooping</a> ()</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1083642666093532"><a name="p1083642666093532"></a><a name="p1083642666093532"></a>bool&nbsp;</p>
<p id="p85334602093532"><a name="p85334602093532"></a><a name="p85334602093532"></a>Checks whether the player is looping. </p>
</td>
</tr>
<tr id="row1585411512093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1591081908093532"><a name="p1591081908093532"></a><a name="p1591081908093532"></a><a href="MultiMedia_Player.md#ga8474b117a4c1bf5749406f26056b4802">GetCurrentTime</a> (int64_t &amp;<a href="zh-cn_topic_0000001054879478.md#gae7841e681c8c9d59818568d39553642c">time</a>) const</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p525090828093532"><a name="p525090828093532"></a><a name="p525090828093532"></a>int32_t&nbsp;</p>
<p id="p583202032093532"><a name="p583202032093532"></a><a name="p583202032093532"></a>Obtains the playback position, accurate to millisecond. </p>
</td>
</tr>
<tr id="row1658211964093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1479438749093532"><a name="p1479438749093532"></a><a name="p1479438749093532"></a><a href="MultiMedia_Player.md#ga24ae07f65da4dafc4ec5aa28321625d8">GetDuration</a> (int64_t &amp;duration) const</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p62322052093532"><a name="p62322052093532"></a><a name="p62322052093532"></a>int32_t&nbsp;</p>
<p id="p1139280088093532"><a name="p1139280088093532"></a><a name="p1139280088093532"></a>Obtains the total duration of media files, in milliseconds. </p>
</td>
</tr>
<tr id="row1679192363093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p156569053093532"><a name="p156569053093532"></a><a name="p156569053093532"></a><a href="MultiMedia_Player.md#ga9ed94bd43d896fa10066497377d7fbda">GetVideoWidth</a> (int32_t &amp;videoWidth)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p47549936093532"><a name="p47549936093532"></a><a name="p47549936093532"></a>int32_t&nbsp;</p>
<p id="p1597890244093532"><a name="p1597890244093532"></a><a name="p1597890244093532"></a>Obtains the width of the video. </p>
</td>
</tr>
<tr id="row396430689093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1136743561093532"><a name="p1136743561093532"></a><a name="p1136743561093532"></a><a href="MultiMedia_Player.md#ga726adc32a34134b30aabfbdb389c8357">GetVideoHeight</a> (int32_t &amp;videoHeight)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1431877720093532"><a name="p1431877720093532"></a><a name="p1431877720093532"></a>int32_t&nbsp;</p>
<p id="p163575576093532"><a name="p163575576093532"></a><a name="p163575576093532"></a>Obtains the height of the video. </p>
</td>
</tr>
<tr id="row179664111093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p514863979093532"><a name="p514863979093532"></a><a name="p514863979093532"></a><a href="MultiMedia_Player.md#ga75e17ee0068d46d44a30709609821b85">Reset</a> ()</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1966138983093532"><a name="p1966138983093532"></a><a name="p1966138983093532"></a>int32_t&nbsp;</p>
<p id="p187547161093532"><a name="p187547161093532"></a><a name="p187547161093532"></a>Restores the player to the initial state. </p>
</td>
</tr>
<tr id="row1347758172093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p218790427093532"><a name="p218790427093532"></a><a name="p218790427093532"></a><a href="MultiMedia_Player.md#ga00e24c0faed483c9d54e416ec2ffe6ac">Release</a> ()</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1933072309093532"><a name="p1933072309093532"></a><a name="p1933072309093532"></a>int32_t&nbsp;</p>
<p id="p911394099093532"><a name="p911394099093532"></a><a name="p911394099093532"></a>Releases player resources. </p>
</td>
</tr>
<tr id="row158413708093532"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p110289079093532"><a name="p110289079093532"></a><a name="p110289079093532"></a><a href="MultiMedia_Player.md#gabb6eca611514d5fc0b66df5ff2d70c2b">SetPlayerCallback</a> (const std::shared_ptr&lt; <a href="OHOS-Media-PlayerCallback.md">PlayerCallback</a> &gt; &amp;cb)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1543192358093532"><a name="p1543192358093532"></a><a name="p1543192358093532"></a>void&nbsp;</p>
<p id="p1503878473093532"><a name="p1503878473093532"></a><a name="p1503878473093532"></a>Registers a listener to receive events and exception notifications from the player. </p>
</td>
</tr>
</tbody>
</table>

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提交于 2020-09-08 10:08 . add OpenHarmony 1.0 baseline

OHOS::Media::Player

Overview

Related Modules:

MultiMedia_Player

Description:

Provides functions for playing online movies, offline movies, and streams, for example, playing local movies and advanced audio coding (AAC) streams.

Since:

1.0

Version:

1.0

Summary

Public Member Functions

Public Member Function Name	Description
SetSource (const Source &source)	int32_t Sets the playback source for the player. The corresponding source can be the file descriptor (FD) of the local file, local file URI, network URI, or media stream.
Prepare ()	int32_t Prepares the playback environment and buffers media data.
Play ()	int32_t Starts or resumes playback.
IsPlaying ()	bool Checks whether the player is playing.
Pause ()	int32_t Pauses playback.
Stop ()	int32_t Stops playback.
Rewind (int64_t mSeconds, int32_t mode)	int32_t Changes the playback position.
SetVolume (float leftVolume, float rightVolume)	int32_t Sets the volume of the player.
SetVideoSurface (Surface *surface)	int32_t Sets a surface for video playback.
EnableSingleLooping (bool loop)	int32_t Sets loop playback.
IsSingleLooping ()	bool Checks whether the player is looping.
GetCurrentTime (int64_t &time) const	int32_t Obtains the playback position, accurate to millisecond.
GetDuration (int64_t &duration) const	int32_t Obtains the total duration of media files, in milliseconds.
GetVideoWidth (int32_t &videoWidth)	int32_t Obtains the width of the video.
GetVideoHeight (int32_t &videoHeight)	int32_t Obtains the height of the video.
Reset ()	int32_t Restores the player to the initial state.
Release ()	int32_t Releases player resources.
SetPlayerCallback (const std::shared_ptr< PlayerCallback > &cb)	void Registers a listener to receive events and exception notifications from the player.

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