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tsmux: Move out parameters of tsmux_write_ts_header

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Move them to the end of the parameter list and also allow passing NULLs
to ignore the payload information, but assert that the payload length is
zero in this case.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5496>
This commit is contained in:
Jan Alexander Steffens (heftig) 2023-10-16 23:52:48 +02:00 committed by GStreamer Marge Bot
parent 5128975a36
commit 2dbd89b036
1 changed files with 20 additions and 17 deletions
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37
subprojects/gst-plugins-bad/gst/mpegtsmux/tsmux/tsmux.c
View file

@ -106,8 +106,8 @@ static gint64 get_current_pcr (TsMux * mux, gint64 cur_ts);
static gint64 write_new_pcr (TsMux * mux, TsMuxStream * stream, gint64 cur_pcr,
gint64 next_pcr);
static gboolean tsmux_write_ts_header (TsMux * mux, guint8 * buf,
TsMuxPacketInfo * pi, guint * payload_len_out, guint * payload_offset_out,
guint stream_avail);
TsMuxPacketInfo * pi, guint stream_avail, guint * payload_len_out,
guint * payload_offset_out);
static void
tsmux_section_free (TsMuxSection * section)
@ -872,15 +872,13 @@ tsmux_packet_out (TsMux * mux, GstBuffer * buf, gint64 pcr)
if (new_pcr != -1) {
GstBuffer *buf = NULL;
GstMapInfo map;
guint payload_len, payload_offs;
if (!tsmux_get_buffer (mux, &buf)) {
goto error;
}
gst_buffer_map (buf, &map, GST_MAP_WRITE);
tsmux_write_ts_header (mux, map.data, &stream->pi, &payload_len,
&payload_offs, 0);
tsmux_write_ts_header (mux, map.data, &stream->pi, 0, NULL, NULL);
gst_buffer_unmap (buf, &map);
stream->pi.flags &= TSMUX_PACKET_FLAG_PES_FULL_HEADER;
@ -1056,7 +1054,7 @@ tsmux_write_adaptation_field (guint8 * buf,
static gboolean
tsmux_write_ts_header (TsMux * mux, guint8 * buf, TsMuxPacketInfo * pi,
guint * payload_len_out, guint * payload_offset_out, guint stream_avail)
guint stream_avail, guint * payload_len_out, guint * payload_offset_out)
{
guint8 *tmp;
guint8 adaptation_flag = 0;
@ -1114,8 +1112,15 @@ tsmux_write_ts_header (TsMux * mux, guint8 * buf, TsMuxPacketInfo * pi,
/* The amount of packet data we wrote is the remaining space after
* the adaptation field */
*payload_len_out = payload_len = TSMUX_PAYLOAD_LENGTH - adapt_len;
*payload_offset_out = TSMUX_HEADER_LENGTH + adapt_len;
payload_len = TSMUX_PAYLOAD_LENGTH - adapt_len;
if (payload_len_out)
*payload_len_out = payload_len;
else
g_assert (payload_len == 0);
if (payload_offset_out)
*payload_offset_out = TSMUX_HEADER_LENGTH + adapt_len;
/* Now if we are going to write out some payload, flag that fact */
if (payload_len > 0 && stream_avail > 0) {
@ -1195,8 +1200,8 @@ tsmux_section_write_packet (gpointer unused_arg,
/* Wee need room for a pointer byte */
section->pi.stream_avail++;
if (!tsmux_write_ts_header (mux, packet, &section->pi, &len, &offset,
section->pi.stream_avail))
if (!tsmux_write_ts_header (mux, packet, &section->pi,
section->pi.stream_avail, &len, &offset))
goto fail;
/* Write the pointer byte */
@ -1204,8 +1209,8 @@ tsmux_section_write_packet (gpointer unused_arg,
payload_len = len - 1;
} else {
if (!tsmux_write_ts_header (mux, packet, &section->pi, &len, &offset,
section->pi.stream_avail))
if (!tsmux_write_ts_header (mux, packet, &section->pi,
section->pi.stream_avail, &len, &offset))
goto fail;
payload_len = len;
}
@ -1539,7 +1544,6 @@ pad_stream (TsMux * mux, TsMuxStream * stream, gint64 cur_ts)
if (bitrate <= mux->bitrate) {
gint64 new_pcr;
guint payload_len, payload_offs;
if (!tsmux_get_buffer (mux, &buf)) {
ret = FALSE;
@ -1558,8 +1562,7 @@ pad_stream (TsMux * mux, TsMuxStream * stream, gint64 cur_ts)
get_next_pcr (mux, cur_ts));
if (new_pcr != -1) {
GST_LOG ("Writing PCR-only packet on PID 0x%04x", stream->pi.pid);
tsmux_write_ts_header (mux, map.data, &stream->pi, &payload_len,
&payload_offs, 0);
tsmux_write_ts_header (mux, map.data, &stream->pi, 0, NULL, NULL);
} else {
GST_LOG ("Writing null stuffing packet");
if (!rewrite_si (mux, cur_ts)) {
@ -1646,8 +1649,8 @@ tsmux_write_stream_packet (TsMux * mux, TsMuxStream * stream)
gst_buffer_map (buf, &map, GST_MAP_WRITE);
if (!tsmux_write_ts_header (mux, map.data, pi, &payload_len, &payload_offs,
pi->stream_avail))
if (!tsmux_write_ts_header (mux, map.data, pi, pi->stream_avail, &payload_len,
&payload_offs))
goto fail;