Add support for HLS manifests [WIP]

test video: YcNc4IBLI1A

client.go

@@ -1,6 +1,7 @@
 package youtube
 
 import (
+	"bufio"
 	"bytes"
 	"context"
 	"encoding/json"
@@ -11,6 +12,7 @@ import (
 	"net/http"
 	"net/url"
 	"strconv"
+	"strings"
 	"sync/atomic"
 
 	"log/slog"
@@ -29,7 +31,7 @@ var (
 )
 
 // DefaultClient type to use. No reason to change but you could if you wanted to.
-var DefaultClient = AndroidClient
+var DefaultClient = IosClient
 
 // Client offers methods to download video metadata and video streams.
 type Client struct {
@@ -72,6 +74,29 @@ func (c *Client) GetVideoContext(ctx context.Context, url string) (*Video, error
 	return c.videoFromID(ctx, id)
 }
 
+func (c *Client) fetchHLS(ctx context.Context, v *Video) error {
+	resp, err := c.httpGet(ctx, v.HLSManifestURL)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	scanner := bufio.NewScanner(resp.Body)
+
+	for scanner.Scan() {
+		line := scanner.Text()
+		if !strings.HasPrefix(line, "#EXT-X-STREAM-INF:") {
+			continue
+		}
+
+		// TODO parse line
+
+		//url := scanner.Text()
+	}
+
+	return nil
+}
+
 func (c *Client) videoFromID(ctx context.Context, id string) (*Video, error) {
 	c.assureClient()
 
@@ -86,6 +111,11 @@ func (c *Client) videoFromID(ctx context.Context, id string) (*Video, error) {
 
 	// return early if all good
 	if err = v.parseVideoInfo(body); err == nil {
+
+		if v.HLSManifestURL != "" {
+			c.fetchHLS(ctx, &v)
+		}
+
 		return &v, nil
 	}
 

cmd/youtubedr/info.go

@@ -3,6 +3,7 @@ package main
 import (
 	"fmt"
 	"io"
+	"log"
 	"os"
 	"strconv"
 	"strings"
@@ -52,6 +53,9 @@ var infoCmd = &cobra.Command{
 			Description: video.Description,
 		}
 
+		log.Println("DASH", video.DASHManifestURL)
+		log.Println("HLS", video.HLSManifestURL)
+
 		for _, format := range video.Formats {
 			bitrate := format.AverageBitrate
 			if bitrate == 0 {