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With these changes, the generated AVI has a valid index and can thus be read by players

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Original commit message from CVS:
With these changes, the generated AVI has a valid index and can thus be read by players
This commit is contained in:
Ronald S. Bultje 2002-09-19 16:52:11 +00:00
parent 427a9c9432
commit 2218165b16
1 changed files with 25 additions and 11 deletions
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36
gst/avi/gstavimux.c
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@ -325,6 +325,9 @@ gst_avimux_sinkconnect (GstPad *pad, GstCaps *vscaps)
"num_colors", &avimux->vids.num_colors,
"imp_colors", &avimux->vids.imp_colors,
NULL);
avimux->vids_hdr.fcc_handler = avimux->vids.compression;
avimux->avi_hdr.width = avimux->vids.width;
avimux->avi_hdr.height = avimux->vids.height;
}
else if (!strncmp (format, "strf_auds", 9)) {
gst_caps_get (caps,
@ -369,7 +372,10 @@ gst_avimux_sinkconnect (GstPad *pad, GstCaps *vscaps)
break;
}
gst_caps_get_fourcc_int(caps, "format", &avimux->vids.compression);
avimux->vids_hdr.fcc_handler = avimux->vids.compression;
avimux->vids.image_size = avimux->vids.height * avimux->vids.width;
avimux->avi_hdr.width = avimux->vids.width;
avimux->avi_hdr.height = avimux->vids.height;
goto done;
default:
break;
@ -382,7 +388,9 @@ gst_avimux_sinkconnect (GstPad *pad, GstCaps *vscaps)
"height", &avimux->vids.height, NULL);
avimux->vids.planes = 1;
avimux->vids.bit_cnt = 24;
avimux->vids.compression = GST_MAKE_FOURCC('M','J','P','G');
avimux->vids_hdr.fcc_handler = avimux->vids.compression = GST_MAKE_FOURCC('M','J','P','G');
avimux->avi_hdr.width = avimux->vids.width;
avimux->avi_hdr.height = avimux->vids.height;
avimux->vids.image_size = avimux->vids.height * avimux->vids.width;
goto done;
}
@ -808,10 +816,10 @@ gst_avimux_add_index (GstAviMux *avimux, guchar *code, guint32 flags, guint32 si
}
memcpy(&(avimux->idx[avimux->idx_index].id), code, 4);
avimux->idx[avimux->idx_index].flags = LE_FROM_GUINT32(flags);
avimux->idx[avimux->idx_index].offset = LE_FROM_GUINT32(avimux->idx_offset-avimux->header_size-8);
avimux->idx[avimux->idx_index].offset = LE_FROM_GUINT32(avimux->idx_offset);
avimux->idx[avimux->idx_index].size = LE_FROM_GUINT32(size);
avimux->idx_index++;
avimux->idx_offset += size + sizeof(gst_riff_index_entry);
avimux->idx_offset += size;
}
static void
@ -855,7 +863,7 @@ gst_avimux_bigfile(GstAviMux *avimux, gboolean last)
GST_SEEK_FLAG_FLUSH,
avimux->avix_start);
/* if the event succeeds */
if (gst_pad_send_event(avimux->srcpad, event)) {
if (gst_pad_send_event(GST_PAD_PEER(avimux->srcpad), event)) {
/* rewrite AVIX header */
header = gst_avimux_riff_get_avix_header(avimux->datax_size);
@ -866,7 +874,7 @@ gst_avimux_bigfile(GstAviMux *avimux, gboolean last)
GST_SEEK_METHOD_SET |
GST_SEEK_FLAG_FLUSH,
avimux->total_data);
gst_pad_send_event(avimux->srcpad, event);
gst_pad_send_event(GST_PAD_PEER(avimux->srcpad), event);
}
}
avimux->avix_start = avimux->total_data;
@ -897,9 +905,10 @@ gst_avimux_start_file (GstAviMux *avimux)
avimux->num_frames = 0;
avimux->numx_frames = 0;
avimux->audio_size = 0;
avimux->avix_start = 0;
avimux->idx_index = 0;
avimux->idx_offset = avimux->header_size + 12;
avimux->idx_offset = 0; /* see 10 lines below */
avimux->idx_size = 0;
avimux->idx_count = 0;
avimux->idx = NULL;
@ -909,6 +918,7 @@ gst_avimux_start_file (GstAviMux *avimux)
avimux->is_bigfile = FALSE;
header = gst_avimux_riff_get_avi_header(avimux);
avimux->idx_offset = avimux->header_size + 12;
avimux->total_data += GST_BUFFER_SIZE(header);
gst_pad_push(avimux->srcpad, header);
@ -944,19 +954,21 @@ gst_avimux_stop_file (GstAviMux *avimux)
avimux->auds_hdr.length = avimux->audio_size/avimux->auds_hdr.scale;
/* TODO: fps calculation!! */
avimux->avi_hdr.us_frame = 1000000/avimux->framerate;
avimux->avi_hdr.us_frame = avimux->vids_hdr.scale = 1000000/avimux->framerate;
avimux->avi_hdr.max_bps = 0;
if (avimux->num_audio_pads_connected)
avimux->avi_hdr.max_bps += avimux->auds.av_bps;
if (avimux->num_video_pads_connected)
avimux->avi_hdr.max_bps += avimux->vids.bit_cnt/8 * avimux->framerate;
avimux->avi_hdr.max_bps += ((avimux->vids.bit_cnt+7)/8) *
avimux->framerate *
avimux->vids.image_size;
/* seek and rewrite the header */
header = gst_avimux_riff_get_avi_header(avimux);
event = gst_event_new_seek (GST_FORMAT_BYTES |
GST_SEEK_METHOD_SET |
GST_SEEK_FLAG_FLUSH, 0);
gst_pad_send_event(avimux->srcpad, event);
gst_pad_send_event(GST_PAD_PEER(avimux->srcpad), event);
gst_pad_push(avimux->srcpad, header);
avimux->write_header = TRUE;
@ -1035,7 +1047,8 @@ gst_avimux_chain (GstPad *pad, GstBuffer *buf)
{
avimux->data_size += GST_BUFFER_SIZE(newbuf) + GST_BUFFER_SIZE(buf);
avimux->audio_size += GST_BUFFER_SIZE(buf);
gst_avimux_add_index(avimux, "01wb", 0x0, GST_BUFFER_SIZE(buf));
gst_avimux_add_index(avimux, "01wb", 0x0,
GST_BUFFER_SIZE(buf) + GST_BUFFER_SIZE(newbuf));
}
gst_pad_push(avimux->srcpad, newbuf);
@ -1069,7 +1082,8 @@ gst_avimux_chain (GstPad *pad, GstBuffer *buf)
{
avimux->data_size += GST_BUFFER_SIZE(newbuf) + GST_BUFFER_SIZE(buf);
avimux->num_frames++;
gst_avimux_add_index(avimux, "00db", 0x12, GST_BUFFER_SIZE(buf));
gst_avimux_add_index(avimux, "00db", 0x12,
GST_BUFFER_SIZE(buf) + GST_BUFFER_SIZE(newbuf));
}
gst_pad_push(avimux->srcpad, newbuf);