CN104867513A - Play control method and equipment - Google Patents
Play control method and equipment Download PDFInfo
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- CN104867513A CN104867513A CN201510188065.8A CN201510188065A CN104867513A CN 104867513 A CN104867513 A CN 104867513A CN 201510188065 A CN201510188065 A CN 201510188065A CN 104867513 A CN104867513 A CN 104867513A
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Abstract
The embodiment of the invention discloses a play control method and equipment. The method comprises the steps of sending a cache instruction carrying an audio data packet to at least one target slave device so as to enable each target slave device to respond to the cache instruction and cache audio data in the audio data packet after receiving the cache instruction; receiving cached information returned from the at least one target slave device, wherein the cached information is used for prompting that a memory space occupied by the cached audio data reaches a preset cache threshold; and sending a play control instruction carrying time information to the at least one target slave device so as to control the at least one target slave device to play the audio data according to the time information. Implementation of the play control method and the equipment can improve play effects of a plurality of playing devices.
Description
Technical field
The present invention relates to Internet technical field, particularly relate to a kind of control method for playing back and equipment.
Background technology
Along with the raising of people's quality of the life, increasing user likes placing multiple playback equipment (as audio amplifier) at home, and this multiple playback equipment forms one family music system.Usually, user can select a playback equipment and be connected with wireless routing device in this house music system, after this playback equipment receives the steering order of self terminal (as smart mobile phone), steering order is converted into the control information in internal network, and this control information is sent to other playback equipments, realize the control of terminal to the playback equipment in house music system.Find in practice, when needing multiple playback equipment to play identical song, usually the voice data of song is sent to from equipment (namely needing to play the playback equipment of same song) by internal network by source device (being namely responsible for the playback equipment of distribution voice data).Because internal network blocks up and the factor such as time delay, different from the capacity of the voice data of equipment buffer memory, can cause when reproduction time arrives like this, be difficult to the synchronous broadcasting realizing song, or but can not realize Continuous Play after song is synchronous, result of broadcast is poor.
Summary of the invention
Embodiments provide a kind of control method for playing back and equipment, the result of broadcast of multiple playback equipment can be improved.
Embodiment of the present invention first aspect discloses a kind of control method for playing back, comprising:
Send at least one target from equipment and carry the cache instruction of packets of audio data, to make each target from equipment after receiving described cache instruction, respond described cache instruction, by the voice data buffer memory in described packets of audio data;
Receive the cache information that at least one target described returns from equipment, described cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory;
Send at least one target described from equipment and carry the Play Control instruction of temporal information, to control at least one target described from equipment according to described temporal information, carry out the broadcasting of described voice data.
Embodiment of the present invention second aspect discloses a kind of control method for playing back, comprising:
Receive the cache instruction carrying packets of audio data that source device sends;
Respond described cache instruction, the voice data in described packets of audio data is carried out buffer memory;
Shared by the voice data judging buffer memory, whether memory headroom reaches preset buffer memory threshold value;
If so, then send cache information to described source device, described cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory;
Receive the Play Control instruction carrying temporal information that source device sends, and according to described temporal information, carry out the broadcasting of described voice data.
The embodiment of the present invention third aspect discloses a source device, comprising:
First transmitting element, for sending the cache instruction carrying packets of audio data at least one target from equipment, to make each target from equipment after receiving described cache instruction, respond described cache instruction, by the voice data buffer memory in described packets of audio data;
Receiving element, for receiving the cache information that at least one target described returns from equipment, described cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory;
Second transmitting element, also carries the Play Control instruction of temporal information for sending at least one target described from equipment, to control at least one target described from equipment according to described temporal information, carries out the broadcasting of described voice data.
Embodiment of the present invention fourth aspect discloses a kind of from equipment, comprising:
First receiving element, for receiving the cache instruction carrying packets of audio data that source device sends;
Buffer unit, for responding described cache instruction, carries out buffer memory by the voice data in described packets of audio data;
Judging unit, for judge buffer memory voice data shared by memory headroom whether reach preset buffer memory threshold value;
Transmitting element, for judge buffer memory at described judging unit voice data shared by memory headroom reach preset buffer memory threshold value time, send cache information to described source device, described cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory;
Second receiving element, for receiving the Play Control instruction carrying temporal information that source device sends, and according to described temporal information, carries out the broadcasting of described voice data.
In the embodiment of the present invention, source device sends the cache instruction carrying packets of audio data at least one target from equipment, to make each target from equipment after receiving cache instruction, response buffer instruction, by the voice data buffer memory in packets of audio data, further, receiving at least one target from after the cache information that equipment returns, source device just can send the Play Control instruction carrying temporal information at least one target from equipment, to control at least one target from equipment according to temporal information, carry out the broadcasting of voice data.Pass through the embodiment of the present invention, when source device receives the cache information that at least one target returns from equipment, show that this at least one target reaches preset buffer memory threshold value from memory headroom shared by the voice data of equipment buffer memory, at this time source device sends the Play Control instruction carrying temporal information at least one target from equipment, this at least one target just can according to temporal information from equipment, synchronously carry out the Continuous Play of song, thus the result of broadcast of multiple playback equipment can be improved.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of system architecture disclosed in the embodiment of the present invention;
Fig. 2 is the schematic flow sheet of a kind of control method for playing back disclosed in the embodiment of the present invention;
Fig. 3 is the schematic flow sheet of another kind of control method for playing back disclosed in the embodiment of the present invention;
Fig. 4 is the schematic flow sheet of another kind of control method for playing back disclosed in the embodiment of the present invention;
Fig. 5 is the structural representation of a source device disclosed in the embodiment of the present invention;
Fig. 6 is the structural representation of another kind of source device disclosed in the embodiment of the present invention;
Fig. 7 is a kind of structural representation from equipment disclosed in the embodiment of the present invention;
Fig. 8 is the disclosed another kind of structural representation from equipment of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the invention discloses a kind of control method for playing back and equipment, the result of broadcast of multiple playback equipment can be improved.Below be described in detail respectively.
Refer to Fig. 1, Fig. 1 is the structural representation of a kind of system architecture disclosed in the embodiment of the present invention, as shown in Figure 1, this system architecture can comprise multiple playback equipment, wireless routing device and terminal, wherein, this playback equipment can include but not limited to audio amplifier, MP4, MP3, multimedia equipment and any equipment etc. possessing playing function, wireless routing device can include but not limited to wireless router and any equipment etc. with wireless coverage function, terminal can comprise smart mobile phone, panel computer, notebook computer, the smart machines such as palm PC and mobile internet device (MID).In the system architecture shown in Fig. 1, between playback equipment, wirelessly (AD-HOC network form or MESH network form) establishes a communications link, a playback equipment (as playback equipment 1) and wireless routing device is had to be connected by wireless or wired mode in this multiple playback equipment, the terminal that controls application is installed and after wireless routing device sets up wireless connections, terminal just can control playback equipment 1, and then controls other playback equipments by playback equipment 1 and carry out playback of songs.
Based on the system architecture shown in Fig. 1, the embodiment of the invention discloses a kind of control method for playing back.Refer to Fig. 2, Fig. 2 is the schematic flow sheet of a kind of control method for playing back disclosed in the embodiment of the present invention, and as shown in Figure 2, the method can comprise the following steps:
S201, to send at least one target from equipment and carry the cache instruction of packets of audio data, to make each target from equipment after receiving cache instruction, response buffer instruction, by the voice data buffer memory in packets of audio data.
In the embodiment of the present invention, user can place multiple playback equipment at home, and this multiple playback equipment can be disposed arbitrarily, such as: in same floor, multiple playback equipment is placed on different rooms respectively, as playback equipment A and playback equipment B is placed on parlor; Playback equipment C is placed on bedroom; Playback equipment D is placed on study; In the building of multilayer, multiple playback equipment is placed on different floors.This multiple playback equipment can form one family music system, and the playback equipment in house music system wirelessly communicates, and forms an internal network, thus can realize synchronously playing same song.
Playback equipment in this internal network synchronously can play the Streaming Media music from internet, also the local music on a wherein playback equipment can synchronously be play, such as: the music file being stored in playback equipment inside, or the music file be connected on the External memory equipment (as USB flash disk, portable hard drive) of playback equipment, or by music that the such as mode such as AirPlay, bluetooth or Miracast pushes.In this internal network, each playback equipment, the audio file that oneself can be obtained, after decoding, be packaged into packets of audio data one by one, send to other playback equipment in internal network, thus realize multiple playback equipment and play same song simultaneously, wherein, the playback equipment being responsible for distribution packets of audio data can be called source device, and the playback equipment being received the packets of audio data of source device transmission by internal network can be called from equipment, synchronization, source device only has one usually, and can have one or more from equipment.
In the embodiment of the present invention, user needs to arrange in the terminal being provided with control application in advance to need the target of synchronously carrying out playback of songs from equipment, and wherein, this target can be one from equipment, also can be multiple.After source device gets audio file, after this audio file is decoded, be packaged into packets of audio data one by one, and the cache instruction carrying packets of audio data is sent to need the target of synchronously carrying out playback of songs from equipment, each target from equipment after receiving cache instruction, just can response buffer instruction, by the voice data buffer memory in packets of audio data.Wherein, here source device can be the playback equipment (as playback equipment 1) be connected with wireless routing device, also can be other playback equipments (as playback equipment 2, playback equipment 3, playback equipments 4), the embodiment of the present invention be not construed as limiting.When certain playback equipment in internal network stores the audio file of song to be played, this playback equipment just can as source device; When all playback equipments in internal network all do not store the audio file of song to be played, under normal circumstances, the playback equipment (playback equipment 1) be connected with wireless routing device is as source device, and playback equipment 1 downloads audio file corresponding to song by external network server.
S202, receive the cache information that at least one target returns from equipment.
In the embodiment of the present invention, source device is after at least one target from equipment, transmission carries the cache instruction of packets of audio data, need to receive the cache information that this at least one target returns from equipment, this cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory.
In the embodiment of the present invention, in order to ensure the continuity of playback of songs, usually, after needing a certain amount of continuant audio data of buffer memory from equipment (as buffer memory 500Kbyte, or receive 50 continuous print packets), just start to issue audio processing modules to restore sound.Therefore, need to pre-set a preset buffer memory threshold value (as 500Kbyte) from equipment.When target receives the packets of audio data sended over from source device from equipment, and this packets of audio data is processed, obtain voice data, after the voice data of buffer memory reaches this preset buffer memory threshold values, send out a buffered message from equipment by internal network and inform source device, and continue buffered audio data.Thus, after source device starts to send the cache instruction carrying packets of audio data, each target reaches preset buffer memory threshold values cache information from the voice data of equipment buffer memory can be received successively.
S203, to send at least one target from equipment and carry the Play Control instruction of temporal information, to control at least one target from equipment according to temporal information, carry out the broadcasting of voice data.
In the embodiment of the present invention, the cache information that source device record object returns from equipment, after receiving the cache information that all targets return from equipment, source device will send the Play Control instruction carrying temporal information to all targets from equipment.Here " all targets are from equipment " refers to that source device sends at least one target of cache instruction from equipment, for example, suppose that source device sends cache instruction to 5 targets from equipment, then all targets are just that these 5 targets are from equipment from equipment, when source device receives these 5 targets from after the cache information that equipment sends, source device will send the Play Control instruction carrying temporal information to these 5 targets from equipment.
In the embodiment of the present invention, above-mentioned temporal information can comprise play time or target duration.Wherein, this play time or target duration are that source device is determined according to current internal network transport state.
It should be noted that, by NTP (network time protocol, NTP (Network Time Protocol)) or SNTP (simple network time protocol, SNTP), source device and the target clock synchronous from equipment can be realized.
As the optional embodiment of one, when this temporal information comprises play time, source device sends the Play Control instruction carrying temporal information at least one target from equipment, to control at least one target from equipment according to temporal information, the specific implementation of carrying out the broadcasting of voice data can be:
Send at least one target from equipment and carry the Play Control instruction of play time, to control at least one target from equipment when play time arrives, carry out the broadcasting of voice data.
In this embodiment, this play time be generally current point in time after certain time point, suppose that current time is 8:30:24 in the morning, source device is 8:30:42 in the morning according to the play time that current internal network transport state is determined, then each target will synchronously carry out the broadcasting of voice data from equipment when 8:30:42 in the morning.It should be noted that, source device also can buffered audio data, and therefore, source device also can participate in the synchronous broadcasting of voice data at 8:30:42 in the morning.
As the optional embodiment of another kind, when this temporal information comprises target duration, source device sends the Play Control instruction carrying temporal information at least one target from equipment, to control at least one target from equipment according to temporal information, the specific implementation of carrying out the broadcasting of voice data can be:
Send the Play Control instruction carrying target duration at least one target from equipment, to control at least one target from equipment timing receiving Play Control instruction, and when timing duration reaches target duration, carry out the broadcasting of voice data.
In this embodiment, target duration can be tens seconds or hundreds of millisecond, and the embodiment of the present invention is not construed as limiting.Suppose that source device is 30S according to the target duration that current internal network transport state is determined, then each target timing from equipment starts timer when receiving Play Control instruction, when the timing duration of timer reaches 30S, carry out the synchronous broadcasting of voice data, wherein, the initial value of this timer is 0.
In the method flow described by Fig. 2, source device sends the cache instruction carrying packets of audio data at least one target from equipment, to make each target from equipment after receiving cache instruction, response buffer instruction, by the voice data buffer memory in packets of audio data, further, receiving at least one target from after the cache information that equipment returns, source device just can send the Play Control instruction carrying temporal information at least one target from equipment, to control at least one target from equipment according to temporal information, carry out the broadcasting of voice data.Pass through the embodiment of the present invention, when source device receives the cache information that at least one target returns from equipment, show that this at least one target reaches preset buffer memory threshold value from memory headroom shared by the voice data of equipment buffer memory, at this time source device sends the Play Control instruction carrying temporal information at least one target from equipment, this at least one target just can according to temporal information from equipment, synchronously carry out the Continuous Play of song, thus the result of broadcast of multiple playback equipment can be improved.
Based on the system architecture shown in Fig. 1, the embodiment of the invention discloses another kind of control method for playing back.Refer to Fig. 3, Fig. 3 is the schematic flow sheet of another kind of control method for playing back disclosed in the embodiment of the present invention.As shown in Figure 3, the method can comprise the following steps:
S301, source device receive and carry the playback of songs instruction of at least one target from device identification.
In the embodiment of the present invention, user understands chosen in advance needs the target of synchronously carrying out playback of songs from equipment, and obtain target from device identification, when clicking the playback of songs button in terminal as user, terminal will send to the playback equipment be connected with wireless routing device (as playback equipment 1) and carry the playback of songs instruction of target from device identification, wherein, this target is the identify label of target from equipment from device identification, for unique identification target from equipment, as the title or device id etc. of equipment.
In the embodiment of the present invention, this source device is the playback equipment being responsible for distribution packets of audio data, it can be playback equipment 1, also can be playback equipment 2, playback equipment 3, playback equipment 4 etc., the embodiment of the present invention does not limit, synchronization, source device only has one usually, and can have one or more from equipment.
Playback equipment 1 is after receiving playback of songs instruction, and whether the playback equipment will inquired about in internal network stores the audio file of song to be played, when inquire self store this audio file time, then this playback equipment 1 is just called source device; When inquiring the some playback equipments in other playback equipments (as playback equipment 2) and storing this audio file, playback equipment 1 will carry after the playback of songs instruction of at least one target from device identification be transmitted to playback equipment 2, and playback equipment 2 just can be called source device; When not inquiring the playback equipment in internal network and storing the audio file of song to be played, playback equipment 1 is from external network server download audio files, and now, this playback equipment 1 is just called source device.
As the optional embodiment of one, terminal can comprise target from device identification and audio file acquisition approach to the playback of songs instruction that playback equipment 1 sends.After playback equipment 1 receives this playback of songs instruction, the memory location of audio file is determined according to audio file acquisition approach, when determining in audio files storage certain playback equipment in internal network (comprising playback equipment 1), this playback equipment is just called source device; When determining that audio files storage is in external network server, playback equipment 1 is from external network server download audio files, and now, playback equipment 1 is just called source device.
The instruction of S302, source device response playback of songs, obtains the audio file that song is corresponding.
In the embodiment of the present invention, when source device is other playback equipments (as playback equipment 2, playback equipment 3, playback equipment 4), this source device directly obtains audio file corresponding to song from this locality; When source device is playback equipment (as the playback equipment 1) that be connected with routing device, this source device can obtain audio file corresponding to song or from external network server, download audio file corresponding to song from this locality.
S303, source device are decoded to audio file, to obtain voice data, and voice data are packaged into multiple packets of audio data.
In the embodiment of the present invention, source device, after getting audio file corresponding to song, just can be decoded to audio file by audio processing modules, obtains voice data, and voice data is packaged into multiple packets of audio data.
S304, source device send from the target that device identification is corresponding the cache instruction carrying packets of audio data to each target from equipment.
In the embodiment of the present invention, source device according to each target from device identification, send from the target that device identification is corresponding the cache instruction carrying packets of audio data from equipment to each target, to make each target from equipment after receiving cache instruction, response buffer instruction, by the voice data buffer memory in packets of audio data.
S305, source device receive the cache information that at least one target returns from equipment.
Whether S306, source device judges receive the cache information that all targets return from equipment in Preset Time, if not, perform step S307, if so, perform step S308.
In the embodiment of the present invention, due to the congested of internal network or time delay situation, target is different from the time needed for the voice data of equipment buffer memory preset buffer memory threshold value, and therefore, the time that source device receives the cache information that each target sends from equipment is also different, in order to not delay the broadcasting of song, need to arrange a Preset Time, this Preset Time can be the stand-by period of system default, the stand-by period that also can arrange for user, as 10S or 20S, the embodiment of the present invention does not limit.
When source device judges does not receive the cache information that all targets return from equipment in Preset Time, perform step S307, when source device judges receives the cache information that all targets return from equipment in Preset Time, perform step S308.
S307, source device send the Play Control instruction carrying temporal information to the target of return cache information from equipment, with the target controlling return cache information from equipment according to temporal information, carry out the broadcasting of voice data.
S308, source device send the Play Control instruction carrying temporal information to all targets from equipment, to control all targets from equipment according to temporal information, carry out the broadcasting of voice data.
In the method flow described by Fig. 3, source device receive carry at least one target from the playback of songs instruction of device identification time, the instruction of response playback of songs, obtain the audio file that song is corresponding, and audio file is decoded, obtain voice data, voice data is packaged into multiple packets of audio data simultaneously, further, send after carrying the cache instruction of packets of audio data to each target from target corresponding to device identification from equipment, receive the cache information that at least one target returns from equipment, judge whether to receive in Preset Time the cache information that all targets return from equipment, if not, the Play Control instruction carrying temporal information is then sent to the target of return cache information from equipment.Pass through the embodiment of the present invention, when internal network transport epidemic situation comparison is busy, source device can send Play Control instruction to the target receiving cache information in Preset Time from equipment, with the target controlling return cache information from equipment according to temporal information, carry out the broadcasting of voice data, thus the broadcasting can avoided waiting for the long time and delay song.
Based on the system architecture shown in Fig. 1, the embodiment of the invention discloses a kind of control method for playing back.Refer to Fig. 4, Fig. 4 is the schematic flow sheet of another kind of control method for playing back disclosed in the embodiment of the present invention.As shown in Figure 4, the method can comprise the following steps:
The cache instruction carrying packets of audio data that S401, reception source device send.
In the embodiment of the present invention, each target can receive the cache instruction carrying packets of audio data of source device transmission from equipment.
S402, response buffer instruction, carry out buffer memory by the voice data in packets of audio data.
In the embodiment of the present invention, each packets of audio data that source device sends has a sequence number, can restore the voice data of song, and then got off by this voice data buffer memory from equipment according to sequence number.
Particularly, each target from equipment receive source device send carry the cache instruction of packets of audio data after, directly this packets of audio data is sent to audio processing modules, after audio processing modules process, obtain voice data, and then restore sound, wherein, this audio processing modules can comprise the digital-to-analogue conversion (DAC) of audio frequency, and analog audio data is carried out the circuit of power amplification, to drive loudspeaker, playback equipment can comprise one or more loudspeakers.
S403, judge buffer memory voice data shared by memory headroom whether reach preset buffer memory threshold value, if so, perform step S404, if not, return and perform step S402.
In the embodiment of the present invention, each target is from after the voice data packets of audio data is carried out buffer memory by equipment, shared by the voice data needing to judge buffer memory, whether memory headroom reaches preset buffer memory threshold value, if, then show that the voice data of buffer memory can Continuous Play, perform step S404, if not, show that target also needs certain hour to continue buffered audio data from equipment, perform step S402.
S404, to source device send cache information.
In the embodiment of the present invention, cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory.
The Play Control instruction carrying temporal information that S405, reception source device send, and according to temporal information, carry out the broadcasting of voice data.
In the embodiment of the present invention, each target from equipment receive source device send carry the Play Control instruction of temporal information after, according to temporal information, start playing audio-fequency data together with the time.Meanwhile, continue to receive the voice data from source device, realize the Continuous Play of song.
In the embodiment of the present invention, above-mentioned temporal information can comprise play time or target duration.Wherein, this play time or target duration are that source device is determined according to current internal network transport state.
It should be noted that, by NTP (network time protocol, NTP (Network Time Protocol)) or SNTP (simple network time protocol, SNTP), source device and the target clock synchronous from equipment can be realized.
As the optional embodiment of one, when this temporal information comprises play time, target receives the Play Control instruction carrying temporal information of source device transmission from equipment, and according to temporal information, the specific implementation of carrying out the broadcasting of voice data can be:
Receive the Play Control instruction carrying play time that source device sends, and when play time arrives, carry out the broadcasting of voice data.
As the optional embodiment of another kind, when this temporal information comprises target duration, target receives the Play Control instruction carrying temporal information of source device transmission from equipment, and according to temporal information, the broadcasting carrying out voice data can comprise the following steps:
11) the Play Control instruction carrying target duration that source device sends is received;
12) start timer and start timing;
13) when the timing duration of timer reaches target duration, the broadcasting of voice data is carried out.
In this embodiment, target from equipment, just can start timer and start timing, and when the timing duration of timer reaches target duration, carry out the broadcasting of voice data after receiving Play Control instruction.
In the method flow described by Fig. 4, target receives the cache instruction carrying packets of audio data of source device transmission from equipment, response buffer instruction, by the voice data buffer memory in packets of audio data, further, shared by the voice data judging buffer memory, whether memory headroom reaches preset buffer memory threshold value, if so, then send cache information to source device, receive the Play Control instruction carrying temporal information that source device sends, and according to temporal information, carry out the broadcasting of voice data.Pass through the embodiment of the present invention, voice data is cached to preset buffer memory threshold value from equipment by each target, and send after cache information to source device, receive the Play Control instruction carrying temporal information that source device sends, and according to temporal information, carry out the broadcasting of voice data, thus can guarantee that multiple target carries out the Continuous Play of song from device synchronization, improve the result of broadcast of multiple playback equipment, improve Consumer's Experience simultaneously.
Be apparatus of the present invention embodiment below, the method that apparatus of the present invention embodiment realizes for performing the inventive method embodiment two to four, for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, concrete ins and outs do not disclose, and please refer to the embodiment of the present invention two, embodiment three and embodiment four.
Refer to Fig. 5, Fig. 5 is the structural representation of a source device disclosed in the embodiment of the present invention, and as shown in Figure 5, this source device 500 can comprise: the first transmitting element 501, receiving element 502 and the second transmitting element 503, wherein:
First transmitting element 501, for sending the cache instruction carrying packets of audio data at least one target from equipment, to make each target from equipment after receiving cache instruction, response buffer instruction, by the voice data buffer memory in packets of audio data.
In the embodiment of the present invention, user can place multiple playback equipment at home, and this multiple playback equipment can be disposed arbitrarily, such as: in same floor, multiple playback equipment is placed on different rooms respectively, as playback equipment A and playback equipment B is placed on parlor; Playback equipment C is placed on bedroom; Playback equipment D is placed on study; In the building of multilayer, multiple playback equipment is placed on different floors.This multiple playback equipment can form one family wireless music system, and the playback equipment in home wireless system wirelessly communicates, and forms an internal network, thus can realize synchronously playing same song.
Playback equipment in this internal network synchronously can play the Streaming Media music from internet, also the local music on a wherein playback equipment can synchronously be play, such as: the music file being stored in playback equipment inside, or the music file be connected on the External memory equipment (as USB flash disk, portable hard drive) of playback equipment, or by music that the such as mode such as AirPlay, bluetooth or Miracast pushes.In this internal network, each playback equipment, the Streaming Media music that oneself can be obtained from internet, or from the audio file that local memory device reads, after decoding, be packaged into packets of audio data one by one, send to other playback equipment in internal network, thus realize multiple playback equipment and play same song simultaneously.
In the embodiment of the present invention, user needs to arrange in the terminal being provided with control application in advance to need the target of synchronously carrying out playback of songs from equipment, and wherein, this target can be one from equipment, also can be multiple.Playback equipment is after getting packets of audio data, the cache instruction carrying packets of audio data just can send to by the first transmitting element 501 needs the target of synchronously carrying out playback of songs from equipment, each target from equipment after receiving cache instruction, just can response buffer instruction, by the voice data buffer memory in packets of audio data.
Receiving element 502, for receiving the cache information that at least one target returns from equipment, cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory.
In the embodiment of the present invention, first transmitting element 501 is after at least one target from equipment, transmission carries the cache instruction of packets of audio data, receiving element 502 can receive the cache information that this at least one target returns from equipment, and this cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory.
In the embodiment of the present invention, in order to ensure the continuity of playback of songs, usually, after needing a certain amount of continuant audio data of buffer memory from equipment (as buffer memory 500Kbyte, or receive 50 continuous print packets), just start to issue audio processing modules to restore sound.Therefore, need to pre-set a preset buffer memory threshold value (as 500Kbyte) from equipment.When target receives the packets of audio data sended over from source device from equipment, and this packets of audio data is processed, obtain voice data, after the voice data of buffer memory reaches this preset buffer memory threshold values, send out a buffered message from equipment by internal network and inform source device, and continue buffered audio data.Thus, after the first transmitting element 501 starts to send the cache instruction carrying packets of audio data, receiving element 502 can receive each target reaches preset buffer memory threshold values cache information from the voice data of equipment buffer memory successively.
Second transmitting element 503, carries the Play Control instruction of temporal information for sending at least one target from equipment, to control at least one target from equipment according to temporal information, carries out the broadcasting of voice data.
In the embodiment of the present invention, after receiving element 502 receives the cache information that all targets return from equipment, the second transmitting element 503 will send the Play Control instruction carrying temporal information to all targets from equipment.Here " all targets are from equipment " refers to that the first transmitting element 501 sends at least one target of cache instruction from equipment, for example, suppose that the first transmitting element 501 sends cache instruction to 5 targets from equipment, then all targets are just that these 5 targets are from equipment from equipment, when receiving element 502 receives these 5 targets from after the cache information that equipment sends, the second transmitting element 503 will send the Play Control instruction carrying temporal information to these 5 targets from equipment.
In the embodiment of the present invention, above-mentioned temporal information can comprise play time or target duration.Wherein, this play time or target duration are that source device is determined according to current internal network transport state.
It should be noted that, by NTP (network time protocol, NTP (Network Time Protocol)) or SNTP (simple network time protocol, SNTP), source device and the target clock synchronous from equipment can be realized.
As the optional embodiment of one, when this temporal information comprises play time, above-mentioned second transmitting element 503 is specifically for sending the Play Control instruction carrying described play time at least one target described from equipment, to control at least one target described from equipment when described play time arrives, carry out the broadcasting of described voice data.
In this embodiment, this play time be generally current point in time after certain time point, suppose that current time is 8:30:24 in the morning, source device is 8:30:42 in the morning according to the play time that current internal network transport state is determined, then this at least one target will synchronously carry out the broadcasting of voice data from equipment when 8:30:42 in the morning.It should be noted that, source device also can buffered audio data, and therefore, source device also can participate in the synchronous broadcasting of voice data at 8:30:42 in the morning.
As the optional embodiment of another kind, when this temporal information comprises target duration, above-mentioned second transmitting element 503 is specifically for sending the Play Control instruction carrying described target duration at least one target described from equipment, to control at least one target described from equipment timing receiving described Play Control instruction, and when timing duration reaches described target duration, carry out the broadcasting of described voice data.
In this embodiment, target duration can be tens seconds or hundreds of millisecond, and the embodiment of the present invention is not construed as limiting.Suppose that source device is 30S according to the target duration that current internal network transport state is determined, then each target timing from equipment starts timer when receiving Play Control instruction, when the timing duration of timer reaches 30S, carry out the synchronous broadcasting of voice data, wherein, the initial value of this timer is 0.
Refer to Fig. 6, Fig. 6 is the structural representation of another kind of source device disclosed in the embodiment of the present invention; Wherein, Fig. 6 is that the enterprising one-step optimization in basis of source device shown in Fig. 5 obtains, and compared with the source device shown in Fig. 5, the source device shown in Fig. 6 is except all unit comprising source device shown in Fig. 5, can also comprise: acquiring unit 504 and decoding unit 505, wherein:
Above-mentioned receiving element 502, also for before sending at least one target from equipment at the first transmitting element 501 and carrying the cache instruction of packets of audio data, receives and carries the playback of songs instruction of at least one target from device identification.
In the embodiment of the present invention, user understands chosen in advance needs the target of synchronously carrying out playback of songs from equipment, and obtain target from device identification, when clicking the playback of songs button in terminal as user, terminal will send to the playback equipment be connected with wireless routing device and carry the playback of songs instruction of target from device identification, and wherein, this target is the identify label of target from equipment from device identification, for unique identification target from equipment, as the title or device id etc. of equipment.
Acquiring unit 504, for responding described playback of songs instruction, obtains the audio file that song is corresponding.
In the embodiment of the present invention, acquiring unit 504 can obtain audio file corresponding to song or from external network server, download audio file corresponding to song from this locality.
Decoding unit 505, for decoding to described audio file, to obtain voice data, and is packaged into multiple packets of audio data by described voice data.
Above-mentioned first transmitting element 501, specifically for sending from the target that device identification is corresponding the cache instruction carrying packets of audio data to each target from equipment.
As the optional embodiment of one, the source device 500 shown in Fig. 6 can also comprise:
Judging unit 506, for receiving at least one target described at described receiving element 502 from after the cache information that equipment returns, and before described second transmitting element 503 sends at least one target described from equipment and carry the Play Control instruction of temporal information, judge whether to receive in Preset Time the cache information that all targets return from equipment.
Above-mentioned second transmitting element 503, during specifically for judging not receive in Preset Time cache information that all targets return from equipment at judging unit 506, the Play Control instruction carrying temporal information is sent from equipment to the target returning described cache information, with the target controlling to return described cache information from equipment according to described temporal information, carry out the broadcasting of described voice data.
In the embodiment of the present invention, due to the congested of internal network or time delay situation, target is different from the time needed for the voice data of equipment buffer memory preset buffer memory threshold value, and therefore, the time that receiving element 502 receives the cache information that each target sends from equipment is also different, in order to not delay the broadcasting of song, need to arrange a Preset Time, this Preset Time can be the stand-by period of system default, the stand-by period that also can arrange for user, as 10S or 20S, the embodiment of the present invention does not limit.When judging unit 506 judges not receive in Preset Time the cache information that all targets return from equipment, send to the target returning described cache information the Play Control instruction carrying temporal information from equipment by the second transmitting element 503, with the target controlling to return described cache information from equipment according to described temporal information, carry out the broadcasting of described voice data.
In the source device shown in Fig. 5 and Fig. 6, first transmitting element 501 sends the cache instruction carrying packets of audio data at least one target from equipment, to make each target from equipment after receiving cache instruction, response buffer instruction, by the voice data buffer memory in packets of audio data, further, at least one target is received from after the cache information that equipment returns at receiving element 502, second transmitting element 503 just can send the Play Control instruction carrying temporal information at least one target from equipment, to control at least one target from equipment according to temporal information, carry out the broadcasting of voice data.Pass through the embodiment of the present invention, when source device receives the cache information that at least one target returns from equipment, show that this at least one target reaches preset buffer memory threshold value from memory headroom shared by the voice data of equipment buffer memory, at this time source device sends the Play Control instruction carrying temporal information at least one target from equipment, this at least one target just can according to temporal information from equipment, synchronously carry out the Continuous Play of song, thus the result of broadcast of multiple playback equipment can be improved.
Refer to Fig. 7, Fig. 7 is a kind of structural representation from equipment disclosed in the embodiment of the present invention.As shown in Figure 7, can should comprise from equipment 700: the first receiving element 701, buffer unit 702, judging unit 703, transmitting element 704 and the second receiving element 705, wherein:
First receiving element 701, for receiving the cache instruction carrying packets of audio data that source device sends.
Buffer unit 702, for responding described cache instruction, by the voice data buffer memory in described packets of audio data.
In the embodiment of the present invention, each packets of audio data that the first receiving element 701 receives has a sequence number, and buffer unit 702 can restore the voice data of song according to sequence number, and then is got off by this voice data buffer memory.
Particularly, first receiving element 701 receive source device send carry the cache instruction of packets of audio data after, directly this packets of audio data is sent to audio processing modules, after audio processing modules process, obtain voice data, this voice data buffer memory just can get off by buffer unit 702, and then restore sound, wherein, this audio processing modules can comprise the digital-to-analogue conversion (DAC) of audio frequency, and analog audio data is carried out the circuit of power amplification, to drive loudspeaker, playback equipment can comprise one or more loudspeakers.
Judging unit 703, for judge buffer memory voice data shared by memory headroom whether reach preset buffer memory threshold value.
Transmitting element 704, for judge buffer memory at described judging unit voice data shared by memory headroom reach preset buffer memory threshold value time, send cache information to described source device, described cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory.
Second receiving element 705, for receiving the Play Control instruction carrying temporal information that source device sends, and according to described temporal information, carries out the broadcasting of described voice data.
In the embodiment of the present invention, the second receiving element 705 receive source device send carry the Play Control instruction of temporal information after, according to temporal information, start playing audio-fequency data together with the time.Meanwhile, continue to receive the voice data from source device, realize the Continuous Play of song.
In the embodiment of the present invention, above-mentioned temporal information can comprise play time or target duration.Wherein, this play time or target duration are that source device is determined according to current internal network transport state.
It should be noted that, by NTP (network time protocol, NTP (Network Time Protocol)) or SNTP (simple network time protocol, SNTP), source device and the target clock synchronous from equipment can be realized.
As the optional embodiment of one, when this temporal information comprises play time, the Play Control instruction carrying described play time that second receiving element 705 sends specifically for receiving source device, and when described play time arrives, carry out the broadcasting of described voice data.
Refer to Fig. 8, Fig. 8 is the disclosed another kind of structural representation from equipment of the embodiment of the present invention.Wherein, shown in Fig. 8 is obtain from the enterprising one-step optimization in the basis of equipment shown in Fig. 7 from equipment, with shown in Fig. 7 from compared with equipment, shown in Fig. 8 from equipment except comprising from all unit of equipment shown in Fig. 7, the second receiving element 705 shown in Fig. 8 can comprise:
Receive subelement 7051, for receiving the Play Control instruction carrying described target duration that source device sends;
Promoter unit 7052, starts timing for starting timer;
Play subelement 7053, for when the timing duration of described timer reaches described target duration, carry out the broadcasting of described voice data.
In this embodiment, receive subelement 7051 after receiving Play Control instruction, promoter unit 7052 just can start timer and start timing, plays subelement 7053 when the timing duration of timer reaches target duration, just can carry out the broadcasting of voice data.
Shown in Fig. 7 and Fig. 8 from equipment, first receiving element 701 receives the cache instruction carrying packets of audio data that source device sends, the instruction of buffer unit 702 response buffer, by the voice data buffer memory in packets of audio data, further, shared by the voice data that judging unit 703 judges buffer memory, whether memory headroom reaches preset buffer memory threshold value, if, then transmitting element 704 sends cache information to source device, second receiving element 705 receives the Play Control instruction carrying temporal information that source device sends, and according to temporal information, carry out the broadcasting of voice data.Pass through the embodiment of the present invention, voice data is cached to preset buffer memory threshold value from equipment by each target, and send after cache information to source device, receive the Play Control instruction carrying temporal information that source device sends, and according to temporal information, carry out the broadcasting of voice data, thus can guarantee that multiple target carries out the Continuous Play of song from device synchronization, improve the result of broadcast of multiple playback equipment, improve Consumer's Experience simultaneously.
It should be noted that, for each embodiment of the method aforesaid, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the application is not by the restriction of described sequence of movement, because according to the application, certain some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in instructions all belongs to preferred embodiment, and involved action and unit might not be that the application is necessary.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above disclosedly be only present pre-ferred embodiments, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (16)
1. a control method for playing back, is characterized in that, comprising:
Send at least one target from equipment and carry the cache instruction of packets of audio data, to make each target from equipment after receiving described cache instruction, respond described cache instruction, by the voice data buffer memory in described packets of audio data;
Receive the cache information that at least one target described returns from equipment, described cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory;
Send at least one target described from equipment and carry the Play Control instruction of temporal information, to control at least one target described from equipment according to described temporal information, carry out the broadcasting of described voice data.
2. method according to claim 1, it is characterized in that, described temporal information comprises play time, it is described that at least one target described from equipment, transmission carries the Play Control instruction of temporal information, to control at least one target described from equipment according to described temporal information, carry out the broadcasting of described voice data, comprising:
Send at least one target described from equipment and carry the Play Control instruction of described play time, to control at least one target described from equipment when described play time arrives, carry out the broadcasting of described voice data.
3. method according to claim 1, it is characterized in that, described temporal information comprises target duration, it is described that at least one target described from equipment, transmission carries the Play Control instruction of temporal information, to control at least one target described from equipment according to described temporal information, carry out the broadcasting of described voice data, comprising:
The Play Control instruction carrying described target duration is sent at least one target described from equipment, to control at least one target described from equipment timing receiving described Play Control instruction, and when timing duration reaches described target duration, carry out the broadcasting of described voice data.
4. method according to claim 1, is characterized in that, described at least one target from equipment send carry the cache instruction of packets of audio data before, described method also comprises:
Receive and carry the playback of songs instruction of at least one target from device identification;
Respond described playback of songs instruction, obtain the audio file that song is corresponding;
Described audio file is decoded, to obtain voice data, and described voice data is packaged into multiple packets of audio data;
Described at least one target from equipment, transmission carries the cache instruction of packets of audio data, comprising:
Send from the target that device identification is corresponding the cache instruction carrying packets of audio data from equipment to each target.
5. method according to claim 4, it is characterized in that, at least one target described in described reception from after the cache information that equipment returns, and described send at least one target described from equipment carry the Play Control instruction of temporal information before, described method also comprises:
Judge whether to receive in Preset Time the cache information that all targets return from equipment;
Described transmission at least one target described from equipment carries the Play Control instruction of temporal information, to control at least one target described from equipment according to described temporal information, carries out the broadcasting of described voice data, comprising:
When judging not receive in Preset Time the cache information that all targets return from equipment, the Play Control instruction carrying temporal information is sent from equipment to the target returning described cache information, with the target controlling to return described cache information from equipment according to described temporal information, carry out the broadcasting of described voice data.
6. a control method for playing back, is characterized in that, comprising:
Receive the cache instruction carrying packets of audio data that source device sends;
Respond described cache instruction, by the voice data buffer memory in described packets of audio data;
Shared by the voice data judging buffer memory, whether memory headroom reaches preset buffer memory threshold value;
If so, then send cache information to described source device, described cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory;
Receive the Play Control instruction carrying temporal information that source device sends, and according to described temporal information, carry out the broadcasting of described voice data.
7. method according to claim 6, is characterized in that, described temporal information comprises play time, the Play Control instruction carrying temporal information that described reception source device sends, and according to described temporal information, carry out the broadcasting of described voice data, comprising:
Receive the Play Control instruction carrying described play time that source device sends, and when described play time arrives, carry out the broadcasting of described voice data.
8. method according to claim 6, is characterized in that, described temporal information comprises target duration, the Play Control instruction carrying temporal information that described reception source device sends, and according to described temporal information, carries out the broadcasting of described voice data, comprising:
Receive the Play Control instruction carrying described target duration that source device sends;
Start timer and start timing, and when the timing duration of described timer reaches described target duration, carry out the broadcasting of described voice data.
9. a source device, is characterized in that, comprising:
First transmitting element, for sending the cache instruction carrying packets of audio data at least one target from equipment, to make each target from equipment after receiving described cache instruction, respond described cache instruction, by the voice data buffer memory in described packets of audio data;
Receiving element, for receiving the cache information that at least one target described returns from equipment, described cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory;
Second transmitting element, carries the Play Control instruction of temporal information for sending at least one target described from equipment, to control at least one target described from equipment according to described temporal information, carries out the broadcasting of described voice data.
10. equipment according to claim 9, it is characterized in that, described temporal information comprises play time, described second transmitting element is specifically for sending the Play Control instruction carrying described play time at least one target described from equipment, to control at least one target described from equipment when described play time arrives, carry out the broadcasting of described voice data.
11. equipment according to claim 9, it is characterized in that, described temporal information comprises target duration, described second transmitting element is specifically for sending the Play Control instruction carrying described target duration at least one target described from equipment, to control at least one target described from equipment timing receiving described Play Control instruction, and when timing duration reaches described target duration, carry out the broadcasting of described voice data.
12. equipment according to claim 9, is characterized in that,
Described receiving element, also for before sending at least one target from equipment at described first transmitting element and carrying the cache instruction of packets of audio data, receives and carries the playback of songs instruction of at least one target from device identification;
Described source device also comprises:
Acquiring unit, for responding described playback of songs instruction, obtains the audio file that song is corresponding;
Decoding unit, for decoding to described audio file, to obtain voice data, and is packaged into multiple packets of audio data by described voice data;
Described first transmitting element, specifically for sending from the target that device identification is corresponding the cache instruction carrying packets of audio data to each target from equipment.
13. equipment according to claim 12, is characterized in that, described source device also comprises:
Judging unit, for receiving at least one target described at described receiving element from after the cache information that equipment returns, and before described second transmitting element sends at least one target described from equipment and carry the Play Control instruction of temporal information, judge whether to receive in Preset Time the cache information that all targets return from equipment;
Described second transmitting element, during specifically for judging not receive in Preset Time cache information that all targets return from equipment at described judging unit, the Play Control instruction carrying temporal information is sent from equipment to the target returning described cache information, with the target controlling to return described cache information from equipment according to described temporal information, carry out the broadcasting of described voice data.
14. 1 kinds from equipment, is characterized in that, comprising:
First receiving element, for receiving the cache instruction carrying packets of audio data that source device sends;
Buffer unit, for responding described cache instruction, by the voice data buffer memory in described packets of audio data;
Judging unit, for judge buffer memory voice data shared by memory headroom whether reach preset buffer memory threshold value;
Transmitting element, for judge buffer memory at described judging unit voice data shared by memory headroom reach preset buffer memory threshold value time, send cache information to described source device, described cache information reaches preset buffer memory threshold value for pointing out memory headroom shared by the voice data of buffer memory;
Second receiving element, for receiving the Play Control instruction carrying temporal information that source device sends, and according to described temporal information, carries out the broadcasting of described voice data.
15. equipment according to claim 14, it is characterized in that, described temporal information comprises play time, the Play Control instruction carrying described play time that described second receiving element sends specifically for receiving source device, and when described play time arrives, carry out the broadcasting of described voice data.
16. equipment according to claim 14, is characterized in that, described temporal information comprises target duration, and described second receiving element comprises:
Receive subelement, for receiving the Play Control instruction carrying described target duration that source device sends;
Promoter unit, starts timing for starting timer;
Play subelement, for when the timing duration of described timer reaches described target duration, carry out the broadcasting of described voice data.
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| CN113784486B (en) * | 2021-08-11 | 2024-04-12 | 深圳市智岩科技有限公司 | Equipment control method, device, electronic equipment and storage medium |
| CN114173426A (en) * | 2021-11-30 | 2022-03-11 | 广州番禺巨大汽车音响设备有限公司 | Wireless sound box playing control method, device and system based on wireless audio transmission |
| CN114173426B (en) * | 2021-11-30 | 2023-09-29 | 广州番禺巨大汽车音响设备有限公司 | Wireless sound box playing control method, device and system based on wireless audio transmission |
| CN115174737A (en) * | 2022-06-30 | 2022-10-11 | 展讯通信(天津)有限公司 | Audio sharing method and device |
| CN115174737B (en) * | 2022-06-30 | 2023-10-13 | 展讯通信(天津)有限公司 | Audio sharing method and device |
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| CN104867513B (en) | 2017-09-29 |
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