mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-02 04:35:55 +00:00
tsmux: Ability for streams to disappear and reappear
Until now, any streams in tsmux had to be present when the element started its first buffer. Now they can appear at any point during the stream, or even disappear and reappear later using the same PID.
This commit is contained in:
Vivia Nikolaidou
GStreamer Merge Bot
parent
97c05d3f4b
commit
fecd38c8f6
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@ -688,89 +688,78 @@ not_negotiated:
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}
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static GstFlowReturn
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gst_base_ts_mux_create_streams (GstBaseTsMux * mux)
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gst_base_ts_mux_create_pad_stream (GstBaseTsMux * mux, GstPad * pad)
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{
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GstBaseTsMuxPad *ts_pad = GST_BASE_TS_MUX_PAD (pad);
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gchar *name = NULL;
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gchar *pcr_name;
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GstFlowReturn ret = GST_FLOW_OK;
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GList *walk = GST_ELEMENT (mux)->sinkpads;
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/* Create the streams */
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while (walk) {
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GstPad *pad = GST_PAD (walk->data);
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GstBaseTsMuxPad *ts_pad = GST_BASE_TS_MUX_PAD (walk->data);
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gchar *name = NULL;
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gchar *pcr_name;
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walk = g_list_next (walk);
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if (ts_pad->prog_id == -1) {
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name = GST_PAD_NAME (pad);
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if (mux->prog_map != NULL && gst_structure_has_field (mux->prog_map,
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name)) {
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gint idx;
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gboolean ret = gst_structure_get_int (mux->prog_map, name, &idx);
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if (!ret) {
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GST_ELEMENT_ERROR (mux, STREAM, MUX,
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("Reading program map failed. Assuming default"), (NULL));
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idx = DEFAULT_PROG_ID;
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}
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if (idx < 0) {
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GST_DEBUG_OBJECT (mux, "Program number %d associate with pad %s less "
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"than zero; DEFAULT_PROGRAM = %d is used instead",
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idx, name, DEFAULT_PROG_ID);
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idx = DEFAULT_PROG_ID;
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}
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ts_pad->prog_id = idx;
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} else {
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ts_pad->prog_id = DEFAULT_PROG_ID;
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if (ts_pad->prog_id == -1) {
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name = GST_PAD_NAME (pad);
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if (mux->prog_map != NULL && gst_structure_has_field (mux->prog_map, name)) {
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gint idx;
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gboolean ret = gst_structure_get_int (mux->prog_map, name, &idx);
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if (!ret) {
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GST_ELEMENT_ERROR (mux, STREAM, MUX,
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("Reading program map failed. Assuming default"), (NULL));
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idx = DEFAULT_PROG_ID;
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}
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}
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ts_pad->prog =
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(TsMuxProgram *) g_hash_table_lookup (mux->programs,
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GINT_TO_POINTER (ts_pad->prog_id));
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if (ts_pad->prog == NULL) {
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ts_pad->prog = tsmux_program_new (mux->tsmux, ts_pad->prog_id);
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if (ts_pad->prog == NULL)
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goto no_program;
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tsmux_set_pmt_interval (ts_pad->prog, mux->pmt_interval);
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tsmux_program_set_scte35_pid (ts_pad->prog, mux->scte35_pid);
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tsmux_program_set_scte35_interval (ts_pad->prog,
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mux->scte35_null_interval);
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g_hash_table_insert (mux->programs, GINT_TO_POINTER (ts_pad->prog_id),
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ts_pad->prog);
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}
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if (ts_pad->stream == NULL) {
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ret = gst_base_ts_mux_create_stream (mux, ts_pad);
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if (ret != GST_FLOW_OK)
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goto no_stream;
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}
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if (ts_pad->prog->pcr_stream == NULL) {
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/* Take the first stream of the program for the PCR */
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GST_DEBUG_OBJECT (ts_pad,
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"Use stream (pid=%d) from pad as PCR for program (prog_id = %d)",
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ts_pad->pid, ts_pad->prog_id);
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tsmux_program_set_pcr_stream (ts_pad->prog, ts_pad->stream);
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}
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/* Check for user-specified PCR PID */
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pcr_name = g_strdup_printf ("PCR_%d", ts_pad->prog->pgm_number);
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if (mux->prog_map && gst_structure_has_field (mux->prog_map, pcr_name)) {
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const gchar *sink_name =
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gst_structure_get_string (mux->prog_map, pcr_name);
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if (!g_strcmp0 (name, sink_name)) {
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GST_DEBUG_OBJECT (mux, "User specified stream (pid=%d) as PCR for "
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"program (prog_id = %d)", ts_pad->pid, ts_pad->prog->pgm_number);
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tsmux_program_set_pcr_stream (ts_pad->prog, ts_pad->stream);
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if (idx < 0) {
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GST_DEBUG_OBJECT (mux, "Program number %d associate with pad %s less "
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"than zero; DEFAULT_PROGRAM = %d is used instead",
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idx, name, DEFAULT_PROG_ID);
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idx = DEFAULT_PROG_ID;
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}
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ts_pad->prog_id = idx;
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} else {
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ts_pad->prog_id = DEFAULT_PROG_ID;
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}
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g_free (pcr_name);
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}
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return GST_FLOW_OK;
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ts_pad->prog =
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(TsMuxProgram *) g_hash_table_lookup (mux->programs,
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GINT_TO_POINTER (ts_pad->prog_id));
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if (ts_pad->prog == NULL) {
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ts_pad->prog = tsmux_program_new (mux->tsmux, ts_pad->prog_id);
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if (ts_pad->prog == NULL)
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goto no_program;
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tsmux_set_pmt_interval (ts_pad->prog, mux->pmt_interval);
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tsmux_program_set_scte35_pid (ts_pad->prog, mux->scte35_pid);
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tsmux_program_set_scte35_interval (ts_pad->prog, mux->scte35_null_interval);
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g_hash_table_insert (mux->programs, GINT_TO_POINTER (ts_pad->prog_id),
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ts_pad->prog);
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}
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if (ts_pad->stream == NULL) {
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ret = gst_base_ts_mux_create_stream (mux, ts_pad);
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if (ret != GST_FLOW_OK)
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goto no_stream;
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}
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if (ts_pad->prog->pcr_stream == NULL) {
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/* Take the first stream of the program for the PCR */
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GST_DEBUG_OBJECT (ts_pad,
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"Use stream (pid=%d) from pad as PCR for program (prog_id = %d)",
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ts_pad->pid, ts_pad->prog_id);
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tsmux_program_set_pcr_stream (ts_pad->prog, ts_pad->stream);
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}
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/* Check for user-specified PCR PID */
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pcr_name = g_strdup_printf ("PCR_%d", ts_pad->prog->pgm_number);
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if (mux->prog_map && gst_structure_has_field (mux->prog_map, pcr_name)) {
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const gchar *sink_name = gst_structure_get_string (mux->prog_map, pcr_name);
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if (!g_strcmp0 (name, sink_name)) {
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GST_DEBUG_OBJECT (mux, "User specified stream (pid=%d) as PCR for "
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"program (prog_id = %d)", ts_pad->pid, ts_pad->prog->pgm_number);
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tsmux_program_set_pcr_stream (ts_pad->prog, ts_pad->stream);
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}
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}
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g_free (pcr_name);
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return ret;
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/* ERRORS */
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no_program:
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@ -787,6 +776,25 @@ no_stream:
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}
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}
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static GstFlowReturn
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gst_base_ts_mux_create_streams (GstBaseTsMux * mux)
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{
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GstFlowReturn ret = GST_FLOW_OK;
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GList *walk = GST_ELEMENT (mux)->sinkpads;
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/* Create the streams */
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while (walk) {
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GstPad *pad = GST_PAD (walk->data);
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ret = gst_base_ts_mux_create_pad_stream (mux, pad);
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if (ret != GST_FLOW_OK)
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return ret;
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walk = g_list_next (walk);
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}
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return GST_FLOW_OK;
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}
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static void
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new_packet_common_init (GstBaseTsMux * mux, GstBuffer * buf, guint8 * data,
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guint len)
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@ -1078,8 +1086,22 @@ gst_base_ts_mux_aggregate_buffer (GstBaseTsMux * mux,
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}
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prog = best->prog;
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if (prog == NULL)
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goto no_program;
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if (prog == NULL) {
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GList *cur;
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gst_base_ts_mux_create_pad_stream (mux, GST_PAD (best));
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tsmux_resend_pat (mux->tsmux);
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tsmux_resend_si (mux->tsmux);
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prog = best->prog;
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g_assert_nonnull (prog);
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/* output PMT for each program */
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for (cur = mux->tsmux->programs; cur; cur = cur->next) {
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TsMuxProgram *program = (TsMuxProgram *) cur->data;
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tsmux_resend_pmt (program);
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}
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}
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g_assert (buf != NULL);
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@ -1213,15 +1235,6 @@ write_fail:
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{
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return mux->last_flow_ret;
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}
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no_program:
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{
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if (buf)
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gst_buffer_unref (buf);
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GST_ELEMENT_ERROR (mux, STREAM, MUX,
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("Stream on pad %" GST_PTR_FORMAT
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" is not associated with any program", best), (NULL));
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return GST_FLOW_ERROR;
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}
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}
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/* GstElement implementation */
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@ -1259,6 +1272,37 @@ stream_exists:
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}
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}
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static void
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gst_base_ts_mux_release_pad (GstElement * element, GstPad * pad)
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{
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GstBaseTsMux *mux = GST_BASE_TS_MUX (element);
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if (mux->tsmux) {
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GList *cur;
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GstBaseTsMuxPad *ts_pad = GST_BASE_TS_MUX_PAD (pad);
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gint pid = ts_pad->pid;
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if (ts_pad->prog->pcr_stream == ts_pad->stream) {
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tsmux_stream_pcr_unref (ts_pad->prog->pcr_stream);
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ts_pad->prog->pcr_stream = NULL;
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}
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if (tsmux_remove_stream (mux->tsmux, pid, ts_pad->prog)) {
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g_hash_table_remove (mux->programs, GINT_TO_POINTER (ts_pad->prog_id));
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}
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tsmux_resend_pat (mux->tsmux);
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tsmux_resend_si (mux->tsmux);
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/* output PMT for each program */
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for (cur = mux->tsmux->programs; cur; cur = cur->next) {
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TsMuxProgram *program = (TsMuxProgram *) cur->data;
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tsmux_resend_pmt (program);
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}
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}
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gst_element_remove_pad (element, pad);
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}
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static gboolean
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gst_base_ts_mux_send_event (GstElement * element, GstEvent * event)
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{
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@ -1863,6 +1907,7 @@ gst_base_ts_mux_class_init (GstBaseTsMuxClass * klass)
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gobject_class->constructed = gst_base_ts_mux_constructed;
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gstelement_class->request_new_pad = gst_base_ts_mux_request_new_pad;
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gstelement_class->release_pad = gst_base_ts_mux_release_pad;
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gstelement_class->send_event = gst_base_ts_mux_send_event;
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gstagg_class->update_src_caps = gst_base_ts_mux_update_src_caps;
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@ -467,6 +467,25 @@ tsmux_program_new (TsMux * mux, gint prog_id)
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return program;
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}
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gboolean
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tsmux_program_delete (TsMux * mux, TsMuxProgram * program)
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{
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g_return_val_if_fail (mux != NULL, FALSE);
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if (mux->nb_programs == 0)
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return FALSE;
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if (!program)
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return FALSE;
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mux->programs = g_list_remove (mux->programs, program);
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mux->nb_programs--;
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mux->pat_changed = TRUE;
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tsmux_program_free ((TsMuxProgram *) program);
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return TRUE;
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}
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/**
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* tsmux_set_pmt_interval:
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* @program: a #TsMuxProgram
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@ -594,6 +613,8 @@ tsmux_program_add_stream (TsMuxProgram * program, TsMuxStream * stream)
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g_return_if_fail (program != NULL);
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g_return_if_fail (stream != NULL);
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stream->program_array_index = program->streams->len;
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g_array_append_val (program->streams, stream);
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program->pmt_changed = TRUE;
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}
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@ -720,6 +741,35 @@ tsmux_find_stream (TsMux * mux, guint16 pid)
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return found;
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}
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gboolean
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tsmux_remove_stream (TsMux * mux, guint16 pid, TsMuxProgram * program)
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{
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GList *cur;
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gboolean ret = FALSE;
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g_return_val_if_fail (mux != NULL, FALSE);
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for (cur = mux->streams; cur; cur = cur->next) {
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TsMuxStream *stream = (TsMuxStream *) cur->data;
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if (tsmux_stream_get_pid (stream) == pid) {
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if (program->streams->len == 1) {
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tsmux_program_delete (mux, program);
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ret = TRUE;
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} else {
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program->streams =
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g_array_remove_index (program->streams,
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stream->program_array_index);
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}
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mux->streams = g_list_remove (mux->streams, stream);
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tsmux_stream_free (stream);
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return ret;
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}
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}
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return ret;
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}
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static gboolean
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tsmux_get_buffer (TsMux * mux, GstBuffer ** buf)
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{
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@ -225,6 +225,7 @@ void tsmux_resend_pmt (TsMuxProgram *program);
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void tsmux_program_set_scte35_pid (TsMuxProgram *program, guint16 pid);
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guint16 tsmux_program_get_scte35_pid (TsMuxProgram *program);
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void tsmux_program_set_scte35_interval (TsMuxProgram *mux, guint interval);
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gboolean tsmux_program_delete (TsMux *mux, TsMuxProgram *program);
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/* SI table management */
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@ -239,6 +240,7 @@ gboolean tsmux_send_section (TsMux *mux, GstMpegtsSection *s
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/* stream management */
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TsMuxStream * tsmux_create_stream (TsMux *mux, guint stream_type, guint16 pid, gchar *language);
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TsMuxStream * tsmux_find_stream (TsMux *mux, guint16 pid);
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gboolean tsmux_remove_stream (TsMux *mux, guint16 pid, TsMuxProgram *program);
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void tsmux_program_add_stream (TsMuxProgram *program, TsMuxStream *stream);
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void tsmux_program_set_pcr_stream (TsMuxProgram *program, TsMuxStream *stream);
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@ -133,6 +133,7 @@ tsmux_stream_new (guint16 pid, guint stream_type)
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stream->pes_payload_size = 0;
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stream->cur_pes_payload_size = 0;
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stream->pes_bytes_written = 0;
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stream->program_array_index = -1;
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switch (stream_type) {
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case TSMUX_ST_VIDEO_MPEG1:
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@ -166,6 +166,8 @@ struct TsMuxStream {
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guint8 id;
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/* extended stream id (13818-1 Amdt 2) */
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guint8 id_extended;
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/* array index in program array */
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gint program_array_index;
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gboolean is_video_stream;
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@ -148,30 +148,18 @@ cleanup_tsmux (GstElement * mux, const gchar * sinkname)
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}
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static void
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check_tsmux_pad (GstStaticPadTemplate * srctemplate,
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check_tsmux_pad_given_muxer (GstElement * mux,
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const gchar * src_caps_string, gint pes_id, gint pmt_id,
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const gchar * sinkname, CheckOutputBuffersFunc check_func, guint n_bufs,
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gssize input_buf_size, guint alignment)
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CheckOutputBuffersFunc check_func, guint n_bufs, gssize input_buf_size)
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{
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GstClockTime ts;
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GstElement *mux;
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GstBuffer *inbuffer, *outbuffer;
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GstCaps *caps;
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gint num_buffers;
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gint i;
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gint pmt_pid = -1, el_pid = -1, pcr_pid = -1, packets = 0;
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gchar *padname;
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GstQuery *drain;
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mux = setup_tsmux (srctemplate, sinkname, &padname);
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if (alignment != 0)
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g_object_set (mux, "alignment", alignment, NULL);
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fail_unless (gst_element_set_state (mux,
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GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
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"could not set to playing");
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caps = gst_caps_from_string (src_caps_string);
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gst_check_setup_events (mysrcpad, mux, caps, GST_FORMAT_TIME);
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gst_caps_unref (caps);
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@ -348,11 +336,68 @@ check_tsmux_pad (GstStaticPadTemplate * srctemplate,
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g_list_free (buffers);
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buffers = NULL;
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}
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static void
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check_tsmux_pad (GstStaticPadTemplate * srctemplate,
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const gchar * src_caps_string, gint pes_id, gint pmt_id,
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const gchar * sinkname, CheckOutputBuffersFunc check_func, guint n_bufs,
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gssize input_buf_size, guint alignment)
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{
|
||||
gchar *padname;
|
||||
GstElement *mux;
|
||||
|
||||
mux = setup_tsmux (srctemplate, sinkname, &padname);
|
||||
|
||||
if (alignment != 0)
|
||||
g_object_set (mux, "alignment", alignment, NULL);
|
||||
|
||||
fail_unless (gst_element_set_state (mux,
|
||||
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
|
||||
"could not set to playing");
|
||||
|
||||
check_tsmux_pad_given_muxer (mux, src_caps_string, pes_id, pmt_id,
|
||||
check_func, n_bufs, input_buf_size);
|
||||
|
||||
cleanup_tsmux (mux, padname);
|
||||
g_free (padname);
|
||||
}
|
||||
|
||||
GST_START_TEST (test_reappearing_pad)
|
||||
{
|
||||
gchar *padname;
|
||||
GstElement *mux;
|
||||
GstPad *pad;
|
||||
|
||||
mux = gst_check_setup_element ("mpegtsmux");
|
||||
mysrcpad = setup_src_pad (mux, &video_src_template, "sink_%d", &padname);
|
||||
mysinkpad = gst_check_setup_sink_pad (mux, &sink_template);
|
||||
gst_pad_set_active (mysrcpad, TRUE);
|
||||
gst_pad_set_active (mysinkpad, TRUE);
|
||||
|
||||
fail_unless (gst_element_set_state (mux,
|
||||
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
|
||||
"could not set to playing");
|
||||
|
||||
check_tsmux_pad_given_muxer (mux, VIDEO_CAPS_STRING, 0xE0, 0x1b, NULL, 1, 1);
|
||||
|
||||
pad = gst_element_get_static_pad (mux, padname);
|
||||
gst_pad_set_active (mysrcpad, FALSE);
|
||||
gst_object_unref (pad);
|
||||
teardown_src_pad (mux, padname);
|
||||
gst_element_release_request_pad (mux, pad);
|
||||
g_free (padname);
|
||||
|
||||
mysrcpad = setup_src_pad (mux, &video_src_template, "sink_%d", &padname);
|
||||
gst_pad_set_active (mysrcpad, TRUE);
|
||||
|
||||
check_tsmux_pad_given_muxer (mux, VIDEO_CAPS_STRING, 0xE0, 0x1b, NULL, 1, 1);
|
||||
|
||||
cleanup_tsmux (mux, padname);
|
||||
g_free (padname);
|
||||
}
|
||||
|
||||
GST_END_TEST;
|
||||
|
||||
GST_START_TEST (test_video)
|
||||
{
|
||||
|
|
@ -491,6 +536,7 @@ mpegtsmux_suite (void)
|
|||
tcase_add_test (tc_chain, test_multiple_state_change);
|
||||
tcase_add_test (tc_chain, test_align);
|
||||
tcase_add_test (tc_chain, test_keyframe_flag_propagation);
|
||||
tcase_add_test (tc_chain, test_reappearing_pad);
|
||||
|
||||
return s;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue