Class VideoStream.H264CodecSettings (0.24.0)

H264 codec settings.

Protobuf type google.cloud.video.livestream.v1.VideoStream.H264CodecSettings

Specifies whether an open Group of Pictures (GOP) structure should be allowed or not. The default is false.

bool allow_open_gop = 6;

Specify the intensity of the adaptive quantizer (AQ). Must be between 0 and 1, where 0 disables the quantizer and 1 maximizes the quantizer. A higher value equals a lower bitrate but smoother image. The default is 0.

double aq_strength = 14;

The number of consecutive B-frames. Must be greater than or equal to zero. Must be less than gop_frame_count if set. The default is 0.

int32 b_frame_count = 13;

Allow B-pyramid for reference frame selection. This may not be supported on all decoders. The default is false.

bool b_pyramid = 12;

Required. The video bitrate in bits per second. Minimum value is 10,000.

• For SD resolution (< 720p), must be <= 3,000,000 (3 Mbps).
• For HD resolution (<= 1080p), must be <= 15,000,000 (15 Mbps).

int32 bitrate_bps = 4 [(.google.api.field_behavior) = REQUIRED];

The entropy coder to use. The default is cabac.

Supported entropy coders:

• cavlc
• cabac

string entropy_coder = 11;

The entropy coder to use. The default is cabac.

Supported entropy coders:

• cavlc
• cabac

string entropy_coder = 11;

Required. The target video frame rate in frames per second (FPS). Must be less than or equal to 60. Will default to the input frame rate if larger than the input frame rate. The API will generate an output FPS that is divisible by the input FPS, and smaller or equal to the target FPS. See Calculating frame rate for more information.

double frame_rate = 3 [(.google.api.field_behavior) = REQUIRED];

Select the GOP size based on the specified duration. The default is 2s. Note that gopDuration must be less than or equal to segment_duration, and segment_duration must be divisible by gopDuration. Valid range is [2s, 20s].

All video streams in the same channel must have the same GOP size.

.google.protobuf.Duration gop_duration = 8;

Select the GOP size based on the specified duration. The default is 2s. Note that gopDuration must be less than or equal to segment_duration, and segment_duration must be divisible by gopDuration. Valid range is [2s, 20s].

All video streams in the same channel must have the same GOP size.

.google.protobuf.Duration gop_duration = 8;

Select the GOP size based on the specified frame count. If GOP frame count is set instead of GOP duration, GOP duration will be calculated by gopFrameCount/frameRate. The calculated GOP duration must satisfy the limitations on gopDuration as well. Valid range is [60, 600].

int32 gop_frame_count = 7;

Required. The height of the video in pixels. Must be an even integer. Valid range is [180, 1080].

int32 height_pixels = 2;

Enforces the specified codec profile. The following profiles are supported:

• baseline
• main (default)

• high

  The available options are FFmpeg-compatible Profile Options. Note that certain values for this field may cause the transcoder to override other fields you set in the H264CodecSettings message.

string profile = 15;

Enforces the specified codec profile. The following profiles are supported:

• baseline
• main (default)

• high

  The available options are FFmpeg-compatible Profile Options. Note that certain values for this field may cause the transcoder to override other fields you set in the H264CodecSettings message.

string profile = 15;

Enforces the specified codec tune. The available options are FFmpeg-compatible Encode Options Note that certain values for this field may cause the transcoder to override other fields you set in the H264CodecSettings message.

string tune = 16;

Enforces the specified codec tune. The available options are FFmpeg-compatible Encode Options Note that certain values for this field may cause the transcoder to override other fields you set in the H264CodecSettings message.

string tune = 16;

Initial fullness of the Video Buffering Verifier (VBV) buffer in bits. Must be greater than zero. The default is equal to 90% of vbv_size_bits.

int32 vbv_fullness_bits = 10;

Size of the Video Buffering Verifier (VBV) buffer in bits. Must be greater than zero. The default is equal to bitrate_bps.

int32 vbv_size_bits = 9;

Required. The width of the video in pixels. Must be an even integer. Valid range is [320, 1920].

int32 width_pixels = 1;

Select the GOP size based on the specified duration. The default is 2s. Note that gopDuration must be less than or equal to segment_duration, and segment_duration must be divisible by gopDuration. Valid range is [2s, 20s].

All video streams in the same channel must have the same GOP size.

.google.protobuf.Duration gop_duration = 8;

Select the GOP size based on the specified frame count. If GOP frame count is set instead of GOP duration, GOP duration will be calculated by gopFrameCount/frameRate. The calculated GOP duration must satisfy the limitations on gopDuration as well. Valid range is [60, 600].

int32 gop_frame_count = 7;