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diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 102df3a..aa40c78 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -3093,6 +3093,7 @@ typedef struct AVSubtitle {
unsigned num_rects;
AVSubtitleRect **rects;
int64_t pts; ///< Same as packet pts, in AV_TIME_BASE
+ uint8_t forced;
} AVSubtitle;
/**
diff --git a/libavcodec/pgssubdec.c b/libavcodec/pgssubdec.c
index 3335412..3f14a2d 100644
--- a/libavcodec/pgssubdec.c
+++ b/libavcodec/pgssubdec.c
@@ -45,6 +45,8 @@ typedef struct PGSSubPresentation {
int y;
int id_number;
int object_number;
+ uint8_t composition_flag;
+ int64_t pts;
} PGSSubPresentation;
typedef struct PGSSubPicture {
@@ -271,7 +273,8 @@ static void parse_palette_segment(AVCodecContext *avctx,
* @todo TODO: Implement forcing of subtitles
*/
static void parse_presentation_segment(AVCodecContext *avctx,
- const uint8_t *buf, int buf_size)
+ const uint8_t *buf, int buf_size,
+ int64_t pts)
{
PGSSubContext *ctx = avctx->priv_data;
@@ -280,6 +283,8 @@ static void parse_presentation_segment(AVCodecContext *avctx,
int w = bytestream_get_be16(&buf);
int h = bytestream_get_be16(&buf);
+ ctx->presentation.pts = pts;
+
av_dlog(avctx, "Video Dimensions %dx%d\n",
w, h);
if (av_image_check_size(w, h, 0, avctx) >= 0)
@@ -299,16 +304,17 @@ static void parse_presentation_segment(AVCodecContext *avctx,
buf += 3;
ctx->presentation.object_number = bytestream_get_byte(&buf);
+ ctx->presentation.composition_flag = 0;
if (!ctx->presentation.object_number)
return;
/*
- * Skip 4 bytes of unknown:
+ * Skip 3 bytes of unknown:
* object_id_ref (2 bytes),
* window_id_ref,
- * composition_flag (0x80 - object cropped, 0x40 - object forced)
*/
- buf += 4;
+ buf += 3;
+ ctx->presentation.composition_flag = bytestream_get_byte(&buf);
x = bytestream_get_be16(&buf);
y = bytestream_get_be16(&buf);
@@ -356,6 +362,9 @@ static int display_end_segment(AVCodecContext *avctx, void *data,
*/
memset(sub, 0, sizeof(*sub));
+ sub->pts = ctx->presentation.pts;
+ sub->forced = (ctx->presentation.composition_flag & 0x40) != 0;
+
// Blank if last object_number was 0.
// Note that this may be wrong for more complex subtitles.
if (!ctx->presentation.object_number)
@@ -441,7 +450,7 @@ static int decode(AVCodecContext *avctx, void *data, int *data_size,
parse_picture_segment(avctx, buf, segment_length);
break;
case PRESENTATION_SEGMENT:
- parse_presentation_segment(avctx, buf, segment_length);
+ parse_presentation_segment(avctx, buf, segment_length, avpkt->pts);
break;
case WINDOW_SEGMENT:
/*
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