id3v1: Seek back to old position after reading.

[ffmpeg] / libavformat / mpegtsenc.c

diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
index a1bd14ccb0f4521cea1c683dabe80ed8531e5c0b..40b906e332061d25a963bbe2bb97c1aabe7ae513 100644 (file)
--- a/libavformat/mpegtsenc.c
+++ b/libavformat/mpegtsenc.c
@@ -2,20 +2,20 @@
  * MPEG2 transport stream (aka DVB) muxer
  * Copyright (c) 2003 Fabrice Bellard
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -283,13 +283,38 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
         /* write optional descriptors here */
         switch(st->codec->codec_type) {
         case AVMEDIA_TYPE_AUDIO:
-            if (lang && strlen(lang->value) == 3) {
+            if (lang) {
+                char *p;
+                char *next = lang->value;
+                uint8_t *len_ptr;
+
                 *q++ = 0x0a; /* ISO 639 language descriptor */
-                *q++ = 4;
-                *q++ = lang->value[0];
-                *q++ = lang->value[1];
-                *q++ = lang->value[2];
-                *q++ = 0; /* undefined type */
+                len_ptr = q++;
+                *len_ptr = 0;
+
+                for (p = lang->value; next && *len_ptr < 255 / 4 * 4; p = next + 1) {
+                    next = strchr(p, ',');
+                    if (strlen(p) != 3 && (!next || next != p + 3))
+                        continue; /* not a 3-letter code */
+
+                    *q++ = *p++;
+                    *q++ = *p++;
+                    *q++ = *p++;
+
+                if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
+                    *q++ = 0x01;
+                else if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
+                    *q++ = 0x02;
+                else if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
+                    *q++ = 0x03;
+                else
+                    *q++ = 0; /* undefined type */
+
+                    *len_ptr += 4;
+                }
+
+                if (*len_ptr == 0)
+                    q -= 2; /* no language codes were written */
             }
             break;
         case AVMEDIA_TYPE_SUBTITLE:
@@ -396,7 +421,7 @@ static MpegTSService *mpegts_add_service(MpegTSWrite *ts,
     service = av_mallocz(sizeof(MpegTSService));
     if (!service)
         return NULL;
-    service->pmt.pid = ts->pmt_start_pid + ts->nb_services;
+    service->pmt.pid = ts->pmt_start_pid + ts->nb_services - 1;
     service->sid = sid;
     service->provider_name = av_strdup(provider_name);
     service->name = av_strdup(name);
@@ -408,7 +433,7 @@ static MpegTSService *mpegts_add_service(MpegTSWrite *ts,
 static void section_write_packet(MpegTSSection *s, const uint8_t *packet)
 {
     AVFormatContext *ctx = s->opaque;
-    put_buffer(ctx->pb, packet, TS_PACKET_SIZE);
+    avio_write(ctx->pb, packet, TS_PACKET_SIZE);
 }
 
 static int mpegts_write_header(AVFormatContext *s)
@@ -554,7 +579,7 @@ static int mpegts_write_header(AVFormatContext *s)
            service->pcr_packet_period,
            ts->sdt_packet_period, ts->pat_packet_period);
 
-    put_flush_packet(s->pb);
+    avio_flush(s->pb);
 
     return 0;
 
@@ -586,9 +611,9 @@ static void retransmit_si_info(AVFormatContext *s)
     }
 }
 
-static int64_t get_pcr(const MpegTSWrite *ts, ByteIOContext *pb)
+static int64_t get_pcr(const MpegTSWrite *ts, AVIOContext *pb)
 {
-    return av_rescale(url_ftell(pb) + 11, 8 * PCR_TIME_BASE, ts->mux_rate) +
+    return av_rescale(avio_tell(pb) + 11, 8 * PCR_TIME_BASE, ts->mux_rate) +
            ts->first_pcr;
 }
 
@@ -618,7 +643,7 @@ static void mpegts_insert_null_packet(AVFormatContext *s)
     *q++ = 0xff;
     *q++ = 0x10;
     memset(q, 0x0FF, TS_PACKET_SIZE - (q - buf));
-    put_buffer(s->pb, buf, TS_PACKET_SIZE);
+    avio_write(s->pb, buf, TS_PACKET_SIZE);
 }
 
 /* Write a single transport stream packet with a PCR and no payload */
@@ -643,7 +668,7 @@ static void mpegts_insert_pcr_only(AVFormatContext *s, AVStream *st)
 
     /* stuffing bytes */
     memset(q, 0xFF, TS_PACKET_SIZE - (q - buf));
-    put_buffer(s->pb, buf, TS_PACKET_SIZE);
+    avio_write(s->pb, buf, TS_PACKET_SIZE);
 }
 
 static void write_pts(uint8_t *q, int fourbits, int64_t pts)
@@ -739,7 +764,8 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
                     *q++ = 0xe0;
             } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
                        (st->codec->codec_id == CODEC_ID_MP2 ||
-                        st->codec->codec_id == CODEC_ID_MP3)) {
+                        st->codec->codec_id == CODEC_ID_MP3 ||
+                        st->codec->codec_id == CODEC_ID_AAC)) {
                 *q++ = 0xc0;
             } else {
                 *q++ = 0xbd;
@@ -837,9 +863,9 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
         memcpy(buf + TS_PACKET_SIZE - len, payload, len);
         payload += len;
         payload_size -= len;
-        put_buffer(s->pb, buf, TS_PACKET_SIZE);
+        avio_write(s->pb, buf, TS_PACKET_SIZE);
     }
-    put_flush_packet(s->pb);
+    avio_flush(s->pb);
 }
 
 static int mpegts_write_packet(AVFormatContext *s, AVPacket *pkt)
@@ -962,7 +988,7 @@ static int mpegts_write_end(AVFormatContext *s)
         }
         av_freep(&ts_st->adts);
     }
-    put_flush_packet(s->pb);
+    avio_flush(s->pb);
 
     for(i = 0; i < ts->nb_services; i++) {
         service = ts->services[i];