Struct google_api_proto::google::cloud::dialogflow::v2beta1::StreamingRecognitionResult

pub struct StreamingRecognitionResult {
    pub message_type: i32,
    pub transcript: String,
    pub is_final: bool,
    pub confidence: f32,
    pub stability: f32,
    pub speech_word_info: Vec<SpeechWordInfo>,
    pub speech_end_offset: Option<Duration>,
    pub language_code: String,
    pub dtmf_digits: Option<TelephonyDtmfEvents>,
}

Contains a speech recognition result corresponding to a portion of the audio that is currently being processed or an indication that this is the end of the single requested utterance.

While end-user audio is being processed, Dialogflow sends a series of results. Each result may contain a transcript value. A transcript represents a portion of the utterance. While the recognizer is processing audio, transcript values may be interim values or finalized values. Once a transcript is finalized, the is_final value is set to true and processing continues for the next transcript.

If StreamingDetectIntentRequest.query_input.audio_config.single_utterance was true, and the recognizer has completed processing audio, the message_type value is set to `END_OF_SINGLE_UTTERANCE and the following (last) result contains the last finalized transcript.

The complete end-user utterance is determined by concatenating the finalized transcript values received for the series of results.

In the following example, single utterance is enabled. In the case where single utterance is not enabled, result 7 would not occur.

Num | transcript              | message_type            | is_final
--- | ----------------------- | ----------------------- | --------
1   | "tube"                  | TRANSCRIPT              | false
2   | "to be a"               | TRANSCRIPT              | false
3   | "to be"                 | TRANSCRIPT              | false
4   | "to be or not to be"    | TRANSCRIPT              | true
5   | "that's"                | TRANSCRIPT              | false
6   | "that is                | TRANSCRIPT              | false
7   | unset                   | END_OF_SINGLE_UTTERANCE | unset
8   | " that is the question" | TRANSCRIPT              | true

Concatenating the finalized transcripts with is_final set to true, the complete utterance becomes “to be or not to be that is the question”.

Fields

message_type: i32

Type of the result message.

transcript: String

Transcript text representing the words that the user spoke. Populated if and only if message_type = TRANSCRIPT.

is_final: bool

If false, the StreamingRecognitionResult represents an interim result that may change. If true, the recognizer will not return any further hypotheses about this piece of the audio. May only be populated for message_type = TRANSCRIPT.

confidence: f32

The Speech confidence between 0.0 and 1.0 for the current portion of audio. A higher number indicates an estimated greater likelihood that the recognized words are correct. The default of 0.0 is a sentinel value indicating that confidence was not set.

This field is typically only provided if is_final is true and you should not rely on it being accurate or even set.

stability: f32

An estimate of the likelihood that the speech recognizer will not change its guess about this interim recognition result:

• If the value is unspecified or 0.0, Dialogflow didn’t compute the stability. In particular, Dialogflow will only provide stability for TRANSCRIPT results with is_final = false.
• Otherwise, the value is in (0.0, 1.0] where 0.0 means completely unstable and 1.0 means completely stable.

speech_word_info: Vec<SpeechWordInfo>

Word-specific information for the words recognized by Speech in [transcript][google.cloud.dialogflow.v2beta1.StreamingRecognitionResult.transcript]. Populated if and only if message_type = TRANSCRIPT and [InputAudioConfig.enable_word_info] is set.

speech_end_offset: Option<Duration>

Time offset of the end of this Speech recognition result relative to the beginning of the audio. Only populated for message_type = TRANSCRIPT.

language_code: String

Detected language code for the transcript.

dtmf_digits: Option<TelephonyDtmfEvents>

DTMF digits. Populated if and only if message_type = DTMF_DIGITS.

Implementations

impl StreamingRecognitionResult

pub fn message_type(&self) -> MessageType

Returns the enum value of message_type, or the default if the field is set to an invalid enum value.

pub fn set_message_type(&mut self, value: MessageType)

Sets message_type to the provided enum value.

Trait Implementations

impl Clone for StreamingRecognitionResult

fn clone(&self) -> StreamingRecognitionResult

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StreamingRecognitionResult

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for StreamingRecognitionResult

fn default() -> Self

Returns the “default value” for a type.

impl Message for StreamingRecognitionResult

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for StreamingRecognitionResult

fn eq(&self, other: &StreamingRecognitionResult) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for StreamingRecognitionResult