static void gst_musepackdec_loop (GstPad * sinkpad) { GstMusepackDec *musepackdec; GstFlowReturn flow; GstBuffer *out; GstMapInfo info; mpc_frame_info frame; mpc_status err; gint num_samples, samplerate, bitspersample; musepackdec = GST_MUSEPACK_DEC (GST_PAD_PARENT (sinkpad)); samplerate = g_atomic_int_get (&musepackdec->rate); if (samplerate == 0) { if (!gst_musepack_stream_init (musepackdec)) goto pause_task; gst_musepackdec_send_newsegment (musepackdec); samplerate = g_atomic_int_get (&musepackdec->rate); } bitspersample = g_atomic_int_get (&musepackdec->bps); out = gst_buffer_new_allocate (NULL, MPC_DECODER_BUFFER_LENGTH * 4, NULL); gst_buffer_map (out, &info, GST_MAP_READWRITE); frame.buffer = (MPC_SAMPLE_FORMAT *) info.data; err = mpc_demux_decode (musepackdec->d, &frame); gst_buffer_unmap (out, &info); if (err != MPC_STATUS_OK) { GST_ERROR_OBJECT (musepackdec, "Failed to decode sample"); GST_ELEMENT_ERROR (musepackdec, STREAM, DECODE, (NULL), (NULL)); goto pause_task; } else if (frame.bits == -1) { goto eos_and_pause; } num_samples = frame.samples; gst_buffer_set_size (out, num_samples * bitspersample); GST_BUFFER_OFFSET (out) = musepackdec->segment.position; GST_BUFFER_PTS (out) = gst_util_uint64_scale_int (musepackdec->segment.position, GST_SECOND, samplerate); GST_BUFFER_DURATION (out) = gst_util_uint64_scale_int (num_samples, GST_SECOND, samplerate); musepackdec->segment.position += num_samples; GST_LOG_OBJECT (musepackdec, "Pushing buffer, timestamp %" GST_TIME_FORMAT, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (out))); flow = gst_pad_push (musepackdec->srcpad, out); if (flow != GST_FLOW_OK) { GST_DEBUG_OBJECT (musepackdec, "Flow: %s", gst_flow_get_name (flow)); goto pause_task; } /* check if we're at the end of a configured segment */ if (musepackdec->segment.stop != -1 && musepackdec->segment.position >= musepackdec->segment.stop) { gint64 stop_time; GST_DEBUG_OBJECT (musepackdec, "Reached end of configured segment"); if ((musepackdec->segment.flags & GST_SEEK_FLAG_SEGMENT) == 0) goto eos_and_pause; GST_DEBUG_OBJECT (musepackdec, "Posting SEGMENT_DONE message"); stop_time = gst_util_uint64_scale_int (musepackdec->segment.stop, GST_SECOND, samplerate); gst_element_post_message (GST_ELEMENT (musepackdec), gst_message_new_segment_done (GST_OBJECT (musepackdec), GST_FORMAT_TIME, stop_time)); gst_pad_push_event (musepackdec->srcpad, gst_event_new_segment_done (GST_FORMAT_TIME, stop_time)); goto pause_task; } return; eos_and_pause: { GST_DEBUG_OBJECT (musepackdec, "sending EOS event"); gst_pad_push_event (musepackdec->srcpad, gst_event_new_eos ()); /* fall through to pause */ } pause_task: { GST_DEBUG_OBJECT (musepackdec, "Pausing task"); gst_pad_pause_task (sinkpad); return; } }
static void gst_musepackdec_loop (GstPad * sinkpad) { GstMusepackDec *musepackdec; GstFlowReturn flow; GstBuffer *out; #ifdef MPC_IS_OLD_API guint32 update_acc, update_bits; #else mpc_frame_info frame; mpc_status err; #endif gint num_samples, samplerate, bitspersample; musepackdec = GST_MUSEPACK_DEC (GST_PAD_PARENT (sinkpad)); samplerate = g_atomic_int_get (&musepackdec->rate); if (samplerate == 0) { if (!gst_musepack_stream_init (musepackdec)) goto pause_task; gst_musepackdec_send_newsegment (musepackdec); samplerate = g_atomic_int_get (&musepackdec->rate); } bitspersample = g_atomic_int_get (&musepackdec->bps); flow = gst_pad_alloc_buffer_and_set_caps (musepackdec->srcpad, -1, MPC_DECODER_BUFFER_LENGTH * 4, GST_PAD_CAPS (musepackdec->srcpad), &out); if (flow != GST_FLOW_OK) { GST_DEBUG_OBJECT (musepackdec, "Flow: %s", gst_flow_get_name (flow)); goto pause_task; } #ifdef MPC_IS_OLD_API num_samples = mpc_decoder_decode (musepackdec->d, (MPC_SAMPLE_FORMAT *) GST_BUFFER_DATA (out), &update_acc, &update_bits); if (num_samples < 0) { GST_ERROR_OBJECT (musepackdec, "Failed to decode sample"); GST_ELEMENT_ERROR (musepackdec, STREAM, DECODE, (NULL), (NULL)); goto pause_task; } else if (num_samples == 0) { goto eos_and_pause; } #else frame.buffer = (MPC_SAMPLE_FORMAT *) GST_BUFFER_DATA (out); err = mpc_demux_decode (musepackdec->d, &frame); if (err != MPC_STATUS_OK) { GST_ERROR_OBJECT (musepackdec, "Failed to decode sample"); GST_ELEMENT_ERROR (musepackdec, STREAM, DECODE, (NULL), (NULL)); goto pause_task; } else if (frame.bits == -1) { goto eos_and_pause; } num_samples = frame.samples; #endif GST_BUFFER_SIZE (out) = num_samples * bitspersample; GST_BUFFER_OFFSET (out) = musepackdec->segment.last_stop; GST_BUFFER_TIMESTAMP (out) = gst_util_uint64_scale_int (musepackdec->segment.last_stop, GST_SECOND, samplerate); GST_BUFFER_DURATION (out) = gst_util_uint64_scale_int (num_samples, GST_SECOND, samplerate); musepackdec->segment.last_stop += num_samples; GST_LOG_OBJECT (musepackdec, "Pushing buffer, timestamp %" GST_TIME_FORMAT, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (out))); flow = gst_pad_push (musepackdec->srcpad, out); if (flow != GST_FLOW_OK) { GST_DEBUG_OBJECT (musepackdec, "Flow: %s", gst_flow_get_name (flow)); goto pause_task; } /* check if we're at the end of a configured segment */ if (musepackdec->segment.stop != -1 && musepackdec->segment.last_stop >= musepackdec->segment.stop) { gint64 stop_time; GST_DEBUG_OBJECT (musepackdec, "Reached end of configured segment"); if ((musepackdec->segment.flags & GST_SEEK_FLAG_SEGMENT) == 0) goto eos_and_pause; GST_DEBUG_OBJECT (musepackdec, "Posting SEGMENT_DONE message"); stop_time = gst_util_uint64_scale_int (musepackdec->segment.stop, GST_SECOND, samplerate); gst_element_post_message (GST_ELEMENT (musepackdec), gst_message_new_segment_done (GST_OBJECT (musepackdec), GST_FORMAT_TIME, stop_time)); goto pause_task; } return; eos_and_pause: { GST_DEBUG_OBJECT (musepackdec, "sending EOS event"); gst_pad_push_event (musepackdec->srcpad, gst_event_new_eos ()); /* fall through to pause */ } pause_task: { GST_DEBUG_OBJECT (musepackdec, "Pausing task"); gst_pad_pause_task (sinkpad); return; } }