- Added force_pts to av_write_packet() to be able to force PTS, this helps

(and fix) stream copying. By now force_pts it's just honoured by the MPEG
muxer. ASF could honour this also, but it should be fixed to use Tickers
first.
- MPEG audio decoder exports it's frame size in bytes.
- Hope this fix the floating point exception found in ffserver.

Originally committed as revision 382 to svn://svn.ffmpeg.org/ffmpeg/trunk

ffmpeg.c

@@ -274,7 +274,7 @@ static void do_audio_out(AVFormatContext *s,
                      &ost->fifo.rptr) == 0) {
             ret = avcodec_encode_audio(enc, audio_out, sizeof(audio_out), 
                                        (short *)audio_buf);
-            s->format->write_packet(s, ost->index, audio_out, ret);
+            s->format->write_packet(s, ost->index, audio_out, ret, 0);
         }
     } else {
         /* output a pcm frame */
@@ -291,7 +291,7 @@ static void do_audio_out(AVFormatContext *s,
         }
         ret = avcodec_encode_audio(enc, audio_out, size_out, 
                                    (short *)buftmp);
-        s->format->write_packet(s, ost->index, audio_out, ret);
+        s->format->write_packet(s, ost->index, audio_out, ret, 0);
     }
 }
 
@@ -387,7 +387,7 @@ static void write_picture(AVFormatContext *s, int index, AVPicture *picture,
     default:
         return;
     }
-    s->format->write_packet(s, index, buf, size);
+    s->format->write_packet(s, index, buf, size, 0);
     free(buf);
 }
 
@@ -484,7 +484,7 @@ static void do_video_out(AVFormatContext *s,
             ret = avcodec_encode_video(enc, 
                                        video_buffer, sizeof(video_buffer), 
                                        picture);
-            s->format->write_packet(s, ost->index, video_buffer, ret);
+            s->format->write_packet(s, ost->index, video_buffer, ret, 0);
             *frame_size = ret;
         } else {
             write_picture(s, ost->index, picture, enc->pix_fmt, enc->width, enc->height);
@@ -728,6 +728,11 @@ static int av_encode(AVFormatContext **output_files,
                 codec->sample_rate == icodec->sample_rate &&
                 codec->channels == icodec->channels) {
                 /* no reencoding */
+                /* use the same frame size */
+                codec->frame_size = icodec->frame_size;
+                //codec->frame_size = 8*icodec->sample_rate*icodec->frame_size/
+                //                    icodec->bit_rate;
+                //fprintf(stderr,"\nFrame size: %d", codec->frame_size);
             } else {
                 if (fifo_init(&ost->fifo, 2 * MAX_AUDIO_PACKET_SIZE))
                     goto fail;
@@ -999,7 +1004,8 @@ static int av_encode(AVFormatContext **output_files,
                         }
                     } else {
                         /* no reencoding needed : output the packet directly */
-                        os->format->write_packet(os, ost->index, data_buf, data_size);
+                        /* force the input stream PTS */
+                        os->format->write_packet(os, ost->index, data_buf, data_size, pkt.pts);
                     }
                 }
             }

ffserver.c

@@ -882,7 +882,7 @@ static int http_prepare_data(HTTPContext *c)
                     }
                 } else {
 		send_it:
-                    if (av_write_packet(&c->fmt_ctx, &pkt))
+                    if (av_write_packet(&c->fmt_ctx, &pkt, 0))
 			c->state = HTTPSTATE_SEND_DATA_TRAILER;
                 }
                 

libav/asf.c

@@ -524,7 +524,7 @@ static void put_frame(AVFormatContext *s, ASFStream *stream, int timestamp,
 
 
 static int asf_write_packet(AVFormatContext *s, int stream_index,
-                            UINT8 *buf, int size)
+                            UINT8 *buf, int size, int force_pts)
 {
     ASFContext *asf = s->priv_data;
     int timestamp;

libav/audio.c

@@ -161,7 +161,7 @@ static int audio_write_header(AVFormatContext *s1)
 }
 
 static int audio_write_packet(AVFormatContext *s1, int stream_index,
-                              UINT8 *buf, int size)
+                              UINT8 *buf, int size, int force_pts)
 {
     AudioData *s = s1->priv_data;
     int len, ret;

libav/avformat.h

@@ -44,7 +44,7 @@ typedef struct AVFormat {
     int (*write_header)(struct AVFormatContext *);
     int (*write_packet)(struct AVFormatContext *, 
                         int stream_index,
-                        unsigned char *buf, int size);
+                        unsigned char *buf, int size, int force_pts);
     int (*write_trailer)(struct AVFormatContext *);
 
     /* optional input support */
@@ -187,7 +187,7 @@ AVFormatContext *av_open_input_file(const char *filename,
 int av_read_packet(AVFormatContext *s, AVPacket *pkt);
 void av_close_input_file(AVFormatContext *s);
 
-int av_write_packet(AVFormatContext *s, AVPacket *pkt);
+int av_write_packet(AVFormatContext *s, AVPacket *pkt, int force_pts);
 
 void dump_format(AVFormatContext *ic,
                  int index, 

libav/avienc.c

@@ -277,7 +277,7 @@ static int avi_write_header(AVFormatContext *s)
 }
 
 static int avi_write_packet(AVFormatContext *s, int stream_index,
-                            UINT8 *buf, int size)
+                            UINT8 *buf, int size, int force_pts)
 {
     AVIContext *avi = s->priv_data;
     ByteIOContext *pb = &s->pb;

libav/ffm.c

@@ -195,7 +195,7 @@ static int ffm_write_header(AVFormatContext *s)
 }
 
 static int ffm_write_packet(AVFormatContext *s, int stream_index,
-                            UINT8 *buf, int size)
+                            UINT8 *buf, int size, int force_pts)
 {
     AVStream *st = s->streams[stream_index];
     FFMStream *fst = st->priv_data;

libav/img.c

@@ -515,7 +515,7 @@ static int img_write_header(AVFormatContext *s)
 }
 
 static int img_write_packet(AVFormatContext *s, int stream_index,
-                            UINT8 *buf, int size)
+                            UINT8 *buf, int size, int force_pts)
 {
     VideoData *img = s->priv_data;
     AVStream *st = s->streams[stream_index];

libav/jpeg.c

@@ -32,8 +32,8 @@ static int mpjpeg_write_header(AVFormatContext *s)
     return 0;
 }
 
-static int mpjpeg_write_packet(AVFormatContext *s, 
+static int mpjpeg_write_packet(AVFormatContext *s, int stream_index, 
-                               int stream_index, UINT8 *buf, int size)
+                               UINT8 *buf, int size, int force_pts)
 {
     UINT8 buf1[256];
 
@@ -74,7 +74,7 @@ static int single_jpeg_write_header(AVFormatContext *s)
 }
 
 static int single_jpeg_write_packet(AVFormatContext *s, int stream_index,
-                            UINT8 *buf, int size)
+                            UINT8 *buf, int size, int force_pts)
 {
     put_buffer(&s->pb, buf, size);
     put_flush_packet(&s->pb);
@@ -120,7 +120,7 @@ static int jpeg_write_header(AVFormatContext *s1)
 }
 
 static int jpeg_write_packet(AVFormatContext *s1, int stream_index,
-                            UINT8 *buf, int size)
+                            UINT8 *buf, int size, int force_pts)
 {
     JpegContext *s = s1->priv_data;
     char filename[1024];

libav/mpeg.c

@@ -321,8 +321,8 @@ static void flush_packet(AVFormatContext *ctx, int stream_index)
     stream->start_pts = -1;
 }
 
-static int mpeg_mux_write_packet(AVFormatContext *ctx, 
+static int mpeg_mux_write_packet(AVFormatContext *ctx, int stream_index,
-                                 int stream_index, UINT8 *buf, int size)
+                                 UINT8 *buf, int size, int force_pts)
 {
     MpegMuxContext *s = ctx->priv_data;
     AVStream *st = ctx->streams[stream_index];
@@ -331,8 +331,11 @@ static int mpeg_mux_write_packet(AVFormatContext *ctx,
     
     while (size > 0) {
         /* set pts */
-        if (stream->start_pts == -1)
+        if (stream->start_pts == -1) {
+            if (force_pts)
+                stream->pts = force_pts;
             stream->start_pts = stream->pts;
+        }
         len = s->packet_data_max_size - stream->buffer_ptr;
         if (len > size)
             len = size;
@@ -714,6 +717,8 @@ static int mpeg_mux_read_packet(AVFormatContext *s,
     goto redo;
  found:
     av_new_packet(pkt, len);
+    //printf("\nRead Packet ID: %x PTS: %f Size: %d", startcode,
+    //       (float)pts/90000, len);
     get_buffer(&s->pb, pkt->data, pkt->size);
     pkt->pts = pts;
     pkt->stream_index = i;

libav/raw.c

@@ -26,7 +26,7 @@ int raw_write_header(struct AVFormatContext *s)
 
 int raw_write_packet(struct AVFormatContext *s, 
                      int stream_index,
-                     unsigned char *buf, int size)
+                     unsigned char *buf, int size, int force_pts)
 {
     put_buffer(&s->pb, buf, size);
     put_flush_packet(&s->pb);

libav/rm.c

@@ -389,7 +389,7 @@ static int rm_write_video(AVFormatContext *s, UINT8 *buf, int size)
 }
 
 static int rm_write_packet(AVFormatContext *s, int stream_index, 
-                           UINT8 *buf, int size)
+                           UINT8 *buf, int size, int force_pts)
 {
     if (s->streams[stream_index]->codec.codec_type == 
         CODEC_TYPE_AUDIO)

libav/swf.c

@@ -378,7 +378,7 @@ static int swf_write_audio(AVFormatContext *s, UINT8 *buf, int size)
 }
 
 static int swf_write_packet(AVFormatContext *s, int stream_index, 
-                           UINT8 *buf, int size)
+                           UINT8 *buf, int size, int force_pts)
 {
     AVCodecContext *codec = &s->streams[stream_index]->codec;
     if (codec->codec_type == CODEC_TYPE_AUDIO)

libav/utils.c

@@ -375,10 +375,10 @@ void av_close_input_file(AVFormatContext *s)
 }
 
 
-int av_write_packet(AVFormatContext *s, AVPacket *pkt)
+int av_write_packet(AVFormatContext *s, AVPacket *pkt, int force_pts)
 {
     /* XXX: currently, an emulation because internal API must change */
-    return s->format->write_packet(s, pkt->stream_index, pkt->data, pkt->size);
+    return s->format->write_packet(s, pkt->stream_index, pkt->data, pkt->size, force_pts);
 }
 
 /* "user interface" functions */

libav/wav.c

@@ -127,7 +127,7 @@ static int wav_write_header(AVFormatContext *s)
 }
 
 static int wav_write_packet(AVFormatContext *s, int stream_index_ptr,
-                           UINT8 *buf, int size)
+                           UINT8 *buf, int size, int force_pts)
 {
     ByteIOContext *pb = &s->pb;
     put_buffer(pb, buf, size);

libavcodec/mpeg12.c

@@ -1403,6 +1403,7 @@ static int mpeg_decode_slice(AVCodecContext *avctx,
 
     for(;;) {
         clear_blocks(s->block[0]);
+        emms_c();
         ret = mpeg_decode_mb(s, s->block);
         dprintf("ret=%d\n", ret);
         if (ret < 0)

libavcodec/mpegaudiodec.c

@@ -2314,6 +2314,7 @@ static int decode_frame(AVCodecContext * avctx,
                         avctx->sample_rate = s->sample_rate;
                         avctx->channels = s->nb_channels;
 			avctx->bit_rate = s->bit_rate;
+			avctx->frame_size = s->frame_size;
                     }
 		}
 	    }