diff --git a/transcoder/migrations/000005_fingerprints.down.sql b/transcoder/migrations/000005_fingerprints.down.sql
new file mode 100644
index 00000000..42ebcd05
--- /dev/null
+++ b/transcoder/migrations/000005_fingerprints.down.sql
@@ -0,0 +1,9 @@
+begin;
+
+alter table gocoder.chapters drop column match_accuracy;
+alter table gocoder.chapters drop column fingerprint_id;
+drop table gocoder.chapterprints;
+drop table gocoder.fingerprints;
+alter table gocoder.info drop column ver_fingerprint;
+
+commit;
diff --git a/transcoder/migrations/000005_fingerprints.up.sql b/transcoder/migrations/000005_fingerprints.up.sql
new file mode 100644
index 00000000..e95c45f5
--- /dev/null
+++ b/transcoder/migrations/000005_fingerprints.up.sql
@@ -0,0 +1,19 @@
+begin;
+
+alter table gocoder.info add column ver_fingerprint integer not null default 0;
+
+create table gocoder.fingerprints(
+	id integer not null primary key references gocoder.info(id) on delete cascade,
+	start_data text not null,
+	end_data text not null
+);
+
+create table gocoder.chapterprints(
+	id serial primary key,
+	data text not null
+);
+
+alter table gocoder.chapters add column fingerprint_id integer references gocoder.chapterprints(id) on delete set null;
+alter table gocoder.chapters add column match_accuracy integer;
+
+commit;
diff --git a/transcoder/src/api/metadata.go b/transcoder/src/api/metadata.go
index a314fc19..473fd2ee 100644
--- a/transcoder/src/api/metadata.go
+++ b/transcoder/src/api/metadata.go
@@ -23,7 +23,7 @@ func RegisterMetadataHandlers(e *echo.Group, metadata *src.MetadataService) {
 	h := mhandler{metadata}
 
 	e.GET("/:path/info", h.GetInfo)
-	e.GET("/:path/prepare", h.Prepare)
+	e.POST("/:path/prepare", h.Prepare)
 	e.GET("/:path/subtitle/:name", h.GetSubtitle)
 	e.GET("/:path/attachment/:name", h.GetAttachment)
 	e.GET("/:path/thumbnails.png", h.GetThumbnails)
@@ -62,10 +62,11 @@ func (h *mhandler) GetInfo(c *echo.Context) error {
 			Container: nil,
 			MimeCodec: nil,
 			Versions: src.Versions{
-				Info:      -1,
-				Extract:   0,
-				Thumbs:    0,
-				Keyframes: 0,
+				Info:        -1,
+				Extract:     0,
+				Thumbs:      0,
+				Keyframes:   0,
+				Fingerprint: 0,
 			},
 			Videos:    make([]src.Video, 0),
 			Audios:    make([]src.Audio, 0),
@@ -77,22 +78,34 @@ func (h *mhandler) GetInfo(c *echo.Context) error {
 	return c.JSON(http.StatusOK, ret)
 }
 
+type PrepareRequest struct {
+	// File path of the previous/next episodes (for audio fingerprinting).
+	NearEpisodes *string `json:"nearEpisodes"`
+}
+
 // @Summary      Prepare metadata
 //
-// @Description  Starts metadata preparation in background (info, extract, thumbs, keyframes).
+// @Description  Starts metadata preparation in background (info, extract, thumbs, keyframes, chapter identification).
 //
 // @Tags         metadata
 // @Param        path  path   string    true  "Base64 of a video's path"  format(base64) example(L3ZpZGVvL2J1YmJsZS5ta3YK)
+// @Param        body  body   PrepareRequest  false  "Adjacent episode paths for chapter detection"
 //
 // @Success      202  "Preparation started"
-// @Router       /:path/prepare [get]
+// @Router       /:path/prepare [post]
 func (h *mhandler) Prepare(c *echo.Context) error {
 	path, sha, err := getPath(c)
 	if err != nil {
 		return err
 	}
 
-	go func(path string, sha string) {
+	var req PrepareRequest
+	err = c.Bind(&req)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusUnprocessableEntity, err.Error())
+	}
+
+	go func() {
 		bgCtx := context.Background()
 
 		info, err := h.metadata.GetMetadata(bgCtx, path, sha)
@@ -113,7 +126,9 @@ func (h *mhandler) Prepare(c *echo.Context) error {
 				fmt.Printf("failed to extract audio keyframes for %s (stream %d): %v\n", path, audio.Index, err)
 			}
 		}
-	}(path, sha)
+
+		h.metadata.IdentifyChapters(bgCtx, info, req.NearEpisodes)
+	}()
 
 	return c.NoContent(http.StatusAccepted)
 }
diff --git a/transcoder/src/info.go b/transcoder/src/info.go
index 5e166602..9e5c1b4b 100644
--- a/transcoder/src/info.go
+++ b/transcoder/src/info.go
@@ -20,10 +20,11 @@ import (
 const InfoVersion = 4
 
 type Versions struct {
-	Info      int32 `json:"info" db:"ver_info"`
-	Extract   int32 `json:"extract" db:"ver_extract"`
-	Thumbs    int32 `json:"thumbs" db:"ver_thumbs"`
-	Keyframes int32 `json:"keyframes" db:"ver_keyframes"`
+	Info        int32 `json:"info" db:"ver_info"`
+	Extract     int32 `json:"extract" db:"ver_extract"`
+	Thumbs      int32 `json:"thumbs" db:"ver_thumbs"`
+	Keyframes   int32 `json:"keyframes" db:"ver_keyframes"`
+	Fingerprint int32 `json:"fingerprint" db:"ver_fingerprint"`
 }
 
 type MediaInfo struct {
@@ -149,6 +150,10 @@ type Chapter struct {
 	Name string `json:"name" db:"name"`
 	/// The type value is used to mark special chapters (openning/credits...)
 	Type ChapterType `json:"type" db:"type"`
+	/// Reference to the chapterprint used for fingerprint matching.
+	FingerprintId *int32 `json:"-" db:"fingerprint_id"`
+	/// Accuracy of the fingerprint match (0-100).
+	MatchAccuracy *int32 `json:"matchAccuracy,omitempty" db:"match_accuracy"`
 }
 
 type ChapterType string
@@ -255,10 +260,11 @@ func RetriveMediaInfo(path string, sha string) (*MediaInfo, error) {
 		Duration:  mi.Format.DurationSeconds,
 		Container: OrNull(mi.Format.FormatName),
 		Versions: Versions{
-			Info:      InfoVersion,
-			Extract:   0,
-			Thumbs:    0,
-			Keyframes: 0,
+			Info:        InfoVersion,
+			Extract:     0,
+			Thumbs:      0,
+			Keyframes:   0,
+			Fingerprint: 0,
 		},
 		Videos: MapStream(mi.Streams, ffprobe.StreamVideo, func(stream *ffprobe.Stream, i uint32) Video {
 			lang, _ := language.Parse(stream.Tags.Language)
diff --git a/transcoder/src/metadata.go b/transcoder/src/metadata.go
index 4b972e9e..c80a97c6 100644
--- a/transcoder/src/metadata.go
+++ b/transcoder/src/metadata.go
@@ -180,6 +180,19 @@ func (s *MetadataService) GetMetadata(ctx context.Context, path string, sha stri
 		}
 	}
 
+	if ret.Versions.Fingerprint < FingerprintVersion && ret.Versions.Fingerprint != 0 {
+		tx, err := s.Database.Begin(bgCtx)
+		if err != nil {
+			return nil, err
+		}
+		tx.Exec(bgCtx, `delete from gocoder.fingerprints where id = $1`, ret.Id)
+		tx.Exec(bgCtx, `update gocoder.info set ver_fingerprint = 0 where id = $1`, ret.Id)
+		err = tx.Commit(bgCtx)
+		if err != nil {
+			fmt.Printf("error deleting old fingerprints from database: %v", err)
+		}
+	}
+
 	return ret, nil
 }
 
@@ -192,7 +205,8 @@ func (s *MetadataService) getMetadata(ctx context.Context, path string, sha stri
 				'info', i.ver_info,
 				'extract', i.ver_extract,
 				'thumbs', i.ver_thumbs,
-				'keyframes', i.ver_keyframes
+				'keyframes', i.ver_keyframes,
+				'fingerprint', i.ver_fingerprint
 			) as versions
 		from gocoder.info as i
 		where i.sha=$1 limit 1`,
@@ -286,13 +300,14 @@ func (s *MetadataService) storeFreshMetadata(ctx context.Context, path string, s
 	err = tx.QueryRow(ctx,
 		`
 		insert into gocoder.info(sha, path, extension, mime_codec, size, duration, container,
-		fonts, ver_info, ver_extract, ver_thumbs, ver_keyframes)
-		values ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12)
+		fonts, ver_info, ver_extract, ver_thumbs, ver_keyframes, ver_fingerprint)
+		values ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13)
 		returning id
 		`,
 		// on conflict do not update versions of extract/thumbs/keyframes
 		ret.Sha, ret.Path, ret.Extension, ret.MimeCodec, ret.Size, ret.Duration, ret.Container,
 		ret.Fonts, ret.Versions.Info, ret.Versions.Extract, ret.Versions.Thumbs, ret.Versions.Keyframes,
+		ret.Versions.Fingerprint,
 	).Scan(&ret.Id)
 	if err != nil {
 		return set(ret, fmt.Errorf("failed to insert info: %w", err))