Kyoo/transcoder/src/video.rs
2023-07-04 11:57:56 +09:00

112 lines
3.5 KiB
Rust

use std::str::FromStr;
use crate::{
error::ApiError,
paths,
state::Transcoder,
transcode::{Quality, TranscodeError},
utils::get_client_id,
};
use actix_files::NamedFile;
use actix_web::{get, web, HttpRequest, Result};
/// Transcode video
///
/// Transcode the video to the selected quality.
/// This route can take a few seconds to respond since it will way for at least one segment to be
/// available.
#[utoipa::path(
responses(
(status = 200, description = "Get the m3u8 playlist."),
(status = NOT_FOUND, description = "Invalid slug.")
),
params(
("resource" = String, Path, description = "Episode or movie"),
("slug" = String, Path, description = "The slug of the movie/episode."),
("quality" = Quality, Path, description = "Specify the quality you want"),
("x-client-id" = String, Header, description = "A unique identify for a player's instance. Used to cancel unused transcode"),
)
)]
#[get("/{resource}/{slug}/{quality}/index.m3u8")]
async fn get_transcoded(
req: HttpRequest,
query: web::Path<(String, String, String)>,
transcoder: web::Data<Transcoder>,
) -> Result<String, ApiError> {
let (resource, slug, quality) = query.into_inner();
let quality = Quality::from_str(quality.as_str()).map_err(|_| ApiError::BadRequest {
error: "Invalid quality".to_string(),
})?;
let client_id = get_client_id(req)?;
let path = paths::get_path(resource, slug)
.await
.map_err(|_| ApiError::NotFound)?;
// TODO: Handle start_time that is not 0
transcoder
.transcode(client_id, path, quality, 0)
.await
.map_err(|e| match e {
TranscodeError::ArgumentError(err) => ApiError::BadRequest { error: err },
TranscodeError::FFmpegError(err) => {
eprintln!(
"Unhandled ffmpeg error occured while transcoding video: {}",
err
);
ApiError::InternalError
}
TranscodeError::ReadError(err) => {
eprintln!(
"Unhandled read error occured while transcoding video: {}",
err
);
ApiError::InternalError
}
})
}
/// Get transmuxed chunk
///
/// Retrieve a chunk of a transmuxed video.
#[utoipa::path(
responses(
(status = 200, description = "Get a hls chunk."),
(status = NOT_FOUND, description = "Invalid slug.")
),
params(
("resource" = String, Path, description = "Episode or movie"),
("slug" = String, Path, description = "The slug of the movie/episode."),
("quality" = Quality, Path, description = "Specify the quality you want"),
("chunk" = u32, Path, description = "The number of the chunk"),
("x-client-id" = String, Header, description = "A unique identify for a player's instance. Used to cancel unused transcode"),
)
)]
#[get("/{resource}/{slug}/{quality}/segments-{chunk}.ts")]
async fn get_chunk(
req: HttpRequest,
query: web::Path<(String, String, String, u32)>,
transcoder: web::Data<Transcoder>,
) -> Result<NamedFile, ApiError> {
let (resource, slug, quality, chunk) = query.into_inner();
let quality = Quality::from_str(quality.as_str()).map_err(|_| ApiError::BadRequest {
error: "Invalid quality".to_string(),
})?;
let client_id = get_client_id(req)?;
let path = paths::get_path(resource, slug)
.await
.map_err(|_| ApiError::NotFound)?;
// TODO: Handle start_time that is not 0
transcoder
.get_segment(client_id, path, quality, chunk)
.await
.map_err(|_| ApiError::BadRequest {
error: "No transcode started for the selected show/quality.".to_string(),
})
.and_then(|path| {
NamedFile::open(path).map_err(|_| ApiError::BadRequest {
error: "Invalid segment number.".to_string(),
})
})
}