From 96c17fe68b12104269f70b113d757fbc67b5ed1f Mon Sep 17 00:00:00 2001
From: reimar <reimar@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Sat, 10 Jul 2010 13:45:09 +0000
Subject: subs: Add support for PGS subtitle decoding via libavcodec

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@31665 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 mpcommon.c | 46 ++++++++++++++++++++++++++++++++++++----------
 1 file changed, 36 insertions(+), 10 deletions(-)

(limited to 'mpcommon.c')

diff --git a/mpcommon.c b/mpcommon.c
index 47706ed497..66f2eece8c 100644
--- a/mpcommon.c
+++ b/mpcommon.c
@@ -17,6 +17,8 @@
  */
 
 #include <stdlib.h>
+#include <stdbool.h>
+
 #include "mpcommon.h"
 #include "options.h"
 #include "stream/stream.h"
@@ -30,6 +32,7 @@
 #include "spudec.h"
 #include "version.h"
 #include "vobsub.h"
+#include "av_sub.h"
 #include "libmpcodecs/dec_teletext.h"
 #include "ffmpeg_files/intreadwrite.h"
 #include "m_option.h"
@@ -84,6 +87,15 @@ if (HAVE_CMOV)
 #endif /* ARCH_X86 */
 }
 
+static bool is_text_sub(int type)
+{
+    return type == 't' || type == 'm' || type == 'a';
+}
+
+static bool is_av_sub(int type)
+{
+    return type == 'p';
+}
 
 void update_subtitles(struct MPContext *mpctx, struct MPOpts *opts,
                       sh_video_t *sh_video, double refpts, double sub_offset,
@@ -92,7 +104,7 @@ void update_subtitles(struct MPContext *mpctx, struct MPOpts *opts,
     double curpts = refpts + sub_delay;
     unsigned char *packet=NULL;
     int len;
-    char type = d_dvdsub->sh ? ((sh_sub_t *)d_dvdsub->sh)->type : 'v';
+    int type = d_dvdsub->sh ? ((sh_sub_t *)d_dvdsub->sh)->type : 'v';
     static subtitle subs;
     if (reset) {
         sub_clear_text(&subs, MP_NOPTS_VALUE);
@@ -103,6 +115,10 @@ void update_subtitles(struct MPContext *mpctx, struct MPOpts *opts,
             spudec_reset(vo_spudec);
             vo_osd_changed(OSDTYPE_SPU);
         }
+#ifdef CONFIG_LIBAVCODEC
+        if (is_av_sub(type))
+            reset_avsub(d_dvdsub->sh);
+#endif
         return;
     }
     // find sub
@@ -122,7 +138,6 @@ void update_subtitles(struct MPContext *mpctx, struct MPOpts *opts,
     if (vo_spudec && (vobsub_id >= 0 || (opts->sub_id >= 0 && type == 'v'))) {
         int timestamp;
         current_module = "spudec";
-        spudec_heartbeat(vo_spudec, 90000*curpts);
         /* Get a sub packet from the DVD or a vobsub */
         while(1) {
             // Vobsub
@@ -157,12 +172,7 @@ void update_subtitles(struct MPContext *mpctx, struct MPOpts *opts,
             if (vo_vobsub || timestamp >= 0)
                 spudec_assemble(vo_spudec, packet, len, timestamp);
         }
-
-        if (spudec_changed(vo_spudec))
-            vo_osd_changed(OSDTYPE_SPU);
-    } else if (opts->sub_id >= 0
-               && (type == 't' || type == 'm' || type == 'a' || type == 'd')) {
-        double endpts;
+    } else if (opts->sub_id >= 0 && (is_text_sub(type) || is_av_sub(type) || type == 'd')) {
         if (type == 'd' && !d_dvdsub->demuxer->teletext) {
             tt_stream_props tsp = {0};
             void *ptr = &tsp;
@@ -171,18 +181,28 @@ void update_subtitles(struct MPContext *mpctx, struct MPOpts *opts,
         }
         if (d_dvdsub->non_interleaved)
             ds_get_next_pts(d_dvdsub);
+
+        int orig_type = type;
         while (d_dvdsub->first) {
             double subpts = ds_get_next_pts(d_dvdsub) + sub_offset;
+            type = orig_type;
             if (subpts > curpts) {
                 // Libass handled subs can be fed to it in advance
-                if (!opts->ass_enabled || type == 'd')
+                if (!opts->ass_enabled || !is_text_sub(type))
                     break;
                 // Try to avoid demuxing whole file at once
                 if (d_dvdsub->non_interleaved && subpts > curpts + 1)
                     break;
             }
-            endpts = d_dvdsub->first->endpts + sub_offset;
+            double endpts = d_dvdsub->first->endpts + sub_offset;
             len = ds_get_packet_sub(d_dvdsub, &packet);
+            if (is_av_sub(type)) {
+#ifdef CONFIG_LIBAVCODEC
+                type = decode_avsub(d_dvdsub->sh, &packet, &len, &subpts, &endpts);
+                if (type <= 0)
+#endif
+                    continue;
+            }
             if (type == 'm') {
                 if (len < 2) continue;
                 len = FFMIN(len - 2, AV_RB16(packet));
@@ -251,6 +271,12 @@ void update_subtitles(struct MPContext *mpctx, struct MPOpts *opts,
             if (sub_clear_text(&subs, curpts))
                 set_osd_subtitle(mpctx, &subs);
     }
+    if (vo_spudec) {
+        spudec_heartbeat(vo_spudec, 90000*curpts);
+        if (spudec_changed(vo_spudec))
+            vo_osd_changed(OSDTYPE_SPU);
+    }
+
     current_module=NULL;
 }
 
-- 
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