mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-01-11 18:05:37 +00:00
rtpbuffer: keep more state
Prepare for the future, make it possible to map multiple buffer regions, like the header and the payload.
This commit is contained in:
Wim Taymans
parent
9ef519d99a
commit
92f46c07fe
2 changed files with 49 additions and 42 deletions
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@ -423,10 +423,12 @@ gst_rtp_buffer_map (GstBuffer * buffer, GstMapFlags flags, GstRTPBuffer * rtp)
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g_return_val_if_fail (rtp != NULL, FALSE);
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g_return_val_if_fail (rtp->buffer == NULL, FALSE);
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if (!gst_buffer_map (buffer, &rtp->map, flags))
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if (!gst_buffer_map (buffer, &rtp->map[0], flags))
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return FALSE;
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rtp->buffer = buffer;
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rtp->state = 0;
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rtp->n_map = 1;
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return TRUE;
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}
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@ -437,8 +439,9 @@ gst_rtp_buffer_unmap (GstRTPBuffer * rtp)
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g_return_val_if_fail (rtp != NULL, FALSE);
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g_return_val_if_fail (rtp->buffer != NULL, FALSE);
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gst_buffer_unmap (rtp->buffer, &rtp->map);
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gst_buffer_unmap (rtp->buffer, &rtp->map[0]);
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rtp->buffer = NULL;
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rtp->n_map = 0;
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return TRUE;
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}
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@ -457,15 +460,15 @@ gst_rtp_buffer_set_packet_len (GstRTPBuffer * rtp, guint len)
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{
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guint8 *data;
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data = rtp->map.data;
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data = rtp->map[0].data;
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if (rtp->map.maxsize <= len) {
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if (rtp->map[0].maxsize <= len) {
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/* FIXME, realloc bigger space */
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g_warning ("not implemented");
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}
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gst_buffer_set_size (rtp->buffer, len);
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rtp->map.size = len;
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rtp->map[0].size = len;
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/* remove any padding */
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GST_RTP_HEADER_PADDING (data) = FALSE;
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@ -500,7 +503,7 @@ gst_rtp_buffer_get_header_len (GstRTPBuffer * rtp)
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guint len;
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guint8 *data;
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data = rtp->map.data;
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data = rtp->map[0].data;
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len = GST_RTP_HEADER_LEN + GST_RTP_HEADER_CSRC_SIZE (data);
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if (GST_RTP_HEADER_EXTENSION (data))
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@ -520,7 +523,7 @@ gst_rtp_buffer_get_header_len (GstRTPBuffer * rtp)
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guint8
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gst_rtp_buffer_get_version (GstRTPBuffer * rtp)
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{
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return GST_RTP_HEADER_VERSION (rtp->map.data);
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return GST_RTP_HEADER_VERSION (rtp->map[0].data);
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}
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/**
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@ -535,7 +538,7 @@ gst_rtp_buffer_set_version (GstRTPBuffer * rtp, guint8 version)
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{
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g_return_if_fail (version < 0x04);
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GST_RTP_HEADER_VERSION (rtp->map.data) = version;
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GST_RTP_HEADER_VERSION (rtp->map[0].data) = version;
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}
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/**
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@ -549,7 +552,7 @@ gst_rtp_buffer_set_version (GstRTPBuffer * rtp, guint8 version)
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gboolean
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gst_rtp_buffer_get_padding (GstRTPBuffer * rtp)
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{
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return GST_RTP_HEADER_PADDING (rtp->map.data);
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return GST_RTP_HEADER_PADDING (rtp->map[0].data);
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}
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/**
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@ -562,7 +565,7 @@ gst_rtp_buffer_get_padding (GstRTPBuffer * rtp)
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void
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gst_rtp_buffer_set_padding (GstRTPBuffer * rtp, gboolean padding)
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{
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GST_RTP_HEADER_PADDING (rtp->map.data) = padding;
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GST_RTP_HEADER_PADDING (rtp->map[0].data) = padding;
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}
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/**
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@ -580,7 +583,7 @@ gst_rtp_buffer_pad_to (GstRTPBuffer * rtp, guint len)
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{
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guint8 *data;
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data = rtp->map.data;
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data = rtp->map[0].data;
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if (len > 0)
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GST_RTP_HEADER_PADDING (data) = TRUE;
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@ -601,7 +604,7 @@ gst_rtp_buffer_pad_to (GstRTPBuffer * rtp, guint len)
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gboolean
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gst_rtp_buffer_get_extension (GstRTPBuffer * rtp)
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{
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return GST_RTP_HEADER_EXTENSION (rtp->map.data);
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return GST_RTP_HEADER_EXTENSION (rtp->map[0].data);
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}
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/**
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@ -614,7 +617,7 @@ gst_rtp_buffer_get_extension (GstRTPBuffer * rtp)
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void
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gst_rtp_buffer_set_extension (GstRTPBuffer * rtp, gboolean extension)
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{
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GST_RTP_HEADER_EXTENSION (rtp->map.data) = extension;
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GST_RTP_HEADER_EXTENSION (rtp->map[0].data) = extension;
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}
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/**
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@ -642,7 +645,7 @@ gst_rtp_buffer_get_extension_data (GstRTPBuffer * rtp, guint16 * bits,
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guint len;
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guint8 *pdata;
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pdata = rtp->map.data;
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pdata = rtp->map[0].data;
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if (!GST_RTP_HEADER_EXTENSION (pdata))
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return FALSE;
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@ -684,17 +687,17 @@ gst_rtp_buffer_set_extension_data (GstRTPBuffer * rtp, guint16 bits,
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guint32 min_size = 0;
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guint8 *data;
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data = rtp->map.data;
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data = rtp->map[0].data;
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/* check if the buffer is big enough to hold the extension */
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min_size =
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GST_RTP_HEADER_LEN + GST_RTP_HEADER_CSRC_SIZE (data) + 4 +
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length * sizeof (guint32);
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if (G_UNLIKELY (min_size > rtp->map.size))
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if (G_UNLIKELY (min_size > rtp->map[0].size))
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goto too_small;
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/* now we can set the extension bit */
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GST_RTP_HEADER_EXTENSION (rtp->map.data) = TRUE;
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GST_RTP_HEADER_EXTENSION (rtp->map[0].data) = TRUE;
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data += GST_RTP_HEADER_LEN + GST_RTP_HEADER_CSRC_SIZE (data);
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GST_WRITE_UINT16_BE (data, bits);
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@ -707,7 +710,7 @@ too_small:
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{
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g_warning
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("rtp buffer too small: need more than %d bytes but only have %"
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G_GSIZE_FORMAT " bytes", min_size, rtp->map.size);
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G_GSIZE_FORMAT " bytes", min_size, rtp->map[0].size);
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return FALSE;
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}
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}
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@ -723,7 +726,7 @@ too_small:
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guint32
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gst_rtp_buffer_get_ssrc (GstRTPBuffer * rtp)
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{
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return g_ntohl (GST_RTP_HEADER_SSRC (rtp->map.data));
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return g_ntohl (GST_RTP_HEADER_SSRC (rtp->map[0].data));
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}
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/**
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@ -736,7 +739,7 @@ gst_rtp_buffer_get_ssrc (GstRTPBuffer * rtp)
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void
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gst_rtp_buffer_set_ssrc (GstRTPBuffer * rtp, guint32 ssrc)
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{
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GST_RTP_HEADER_SSRC (rtp->map.data) = g_htonl (ssrc);
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GST_RTP_HEADER_SSRC (rtp->map[0].data) = g_htonl (ssrc);
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}
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/**
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@ -750,7 +753,7 @@ gst_rtp_buffer_set_ssrc (GstRTPBuffer * rtp, guint32 ssrc)
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guint8
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gst_rtp_buffer_get_csrc_count (GstRTPBuffer * rtp)
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{
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return GST_RTP_HEADER_CSRC_COUNT (rtp->map.data);
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return GST_RTP_HEADER_CSRC_COUNT (rtp->map[0].data);
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}
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/**
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@ -767,7 +770,7 @@ gst_rtp_buffer_get_csrc (GstRTPBuffer * rtp, guint8 idx)
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{
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guint8 *data;
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data = rtp->map.data;
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data = rtp->map[0].data;
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g_return_val_if_fail (idx < GST_RTP_HEADER_CSRC_COUNT (data), 0);
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@ -787,7 +790,7 @@ gst_rtp_buffer_set_csrc (GstRTPBuffer * rtp, guint8 idx, guint32 csrc)
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{
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guint8 *data;
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data = rtp->map.data;
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data = rtp->map[0].data;
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g_return_if_fail (idx < GST_RTP_HEADER_CSRC_COUNT (data));
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@ -805,7 +808,7 @@ gst_rtp_buffer_set_csrc (GstRTPBuffer * rtp, guint8 idx, guint32 csrc)
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gboolean
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gst_rtp_buffer_get_marker (GstRTPBuffer * rtp)
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{
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return GST_RTP_HEADER_MARKER (rtp->map.data);
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return GST_RTP_HEADER_MARKER (rtp->map[0].data);
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}
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/**
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@ -818,7 +821,7 @@ gst_rtp_buffer_get_marker (GstRTPBuffer * rtp)
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void
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gst_rtp_buffer_set_marker (GstRTPBuffer * rtp, gboolean marker)
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{
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GST_RTP_HEADER_MARKER (rtp->map.data) = marker;
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GST_RTP_HEADER_MARKER (rtp->map[0].data) = marker;
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}
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/**
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@ -832,7 +835,7 @@ gst_rtp_buffer_set_marker (GstRTPBuffer * rtp, gboolean marker)
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guint8
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gst_rtp_buffer_get_payload_type (GstRTPBuffer * rtp)
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{
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return GST_RTP_HEADER_PAYLOAD_TYPE (rtp->map.data);
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return GST_RTP_HEADER_PAYLOAD_TYPE (rtp->map[0].data);
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}
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/**
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@ -847,7 +850,7 @@ gst_rtp_buffer_set_payload_type (GstRTPBuffer * rtp, guint8 payload_type)
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{
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g_return_if_fail (payload_type < 0x80);
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GST_RTP_HEADER_PAYLOAD_TYPE (rtp->map.data) = payload_type;
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GST_RTP_HEADER_PAYLOAD_TYPE (rtp->map[0].data) = payload_type;
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}
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/**
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@ -861,7 +864,7 @@ gst_rtp_buffer_set_payload_type (GstRTPBuffer * rtp, guint8 payload_type)
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guint16
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gst_rtp_buffer_get_seq (GstRTPBuffer * rtp)
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{
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return g_ntohs (GST_RTP_HEADER_SEQ (rtp->map.data));
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return g_ntohs (GST_RTP_HEADER_SEQ (rtp->map[0].data));
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}
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/**
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@ -874,7 +877,7 @@ gst_rtp_buffer_get_seq (GstRTPBuffer * rtp)
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void
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gst_rtp_buffer_set_seq (GstRTPBuffer * rtp, guint16 seq)
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{
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GST_RTP_HEADER_SEQ (rtp->map.data) = g_htons (seq);
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GST_RTP_HEADER_SEQ (rtp->map[0].data) = g_htons (seq);
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}
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/**
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@ -888,7 +891,7 @@ gst_rtp_buffer_set_seq (GstRTPBuffer * rtp, guint16 seq)
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guint32
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gst_rtp_buffer_get_timestamp (GstRTPBuffer * rtp)
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{
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return g_ntohl (GST_RTP_HEADER_TIMESTAMP (rtp->map.data));
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return g_ntohl (GST_RTP_HEADER_TIMESTAMP (rtp->map[0].data));
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}
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/**
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@ -901,7 +904,7 @@ gst_rtp_buffer_get_timestamp (GstRTPBuffer * rtp)
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void
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gst_rtp_buffer_set_timestamp (GstRTPBuffer * rtp, guint32 timestamp)
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{
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GST_RTP_HEADER_TIMESTAMP (rtp->map.data) = g_htonl (timestamp);
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GST_RTP_HEADER_TIMESTAMP (rtp->map[0].data) = g_htonl (timestamp);
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}
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@ -979,8 +982,8 @@ gst_rtp_buffer_get_payload_len (GstRTPBuffer * rtp)
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guint len, size;
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guint8 *data;
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size = rtp->map.size;
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data = rtp->map.data;
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size = rtp->map[0].size;
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data = rtp->map[0].data;
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len = size - gst_rtp_buffer_get_header_len (rtp);
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@ -1002,7 +1005,7 @@ gst_rtp_buffer_get_payload_len (GstRTPBuffer * rtp)
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gpointer
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gst_rtp_buffer_get_payload (GstRTPBuffer * rtp)
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{
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return rtp->map.data + gst_rtp_buffer_get_header_len (rtp);
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return rtp->map[0].data + gst_rtp_buffer_get_header_len (rtp);
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}
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/**
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@ -1342,10 +1345,10 @@ gst_rtp_buffer_add_extension_onebyte_header (GstRTPBuffer * rtp, guint8 id,
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return FALSE;
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nextext = pdata + offset;
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offset = nextext - rtp->map.data;
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offset = nextext - rtp->map[0].data;
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/* Don't add extra header if there isn't enough space */
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if (rtp->map.size < offset + size + 1)
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if (rtp->map[0].size < offset + size + 1)
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return FALSE;
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nextext[0] = (id << 4) | (0x0F & (size - 1));
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@ -1462,10 +1465,10 @@ gst_rtp_buffer_add_extension_twobytes_header (GstRTPBuffer * rtp,
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nextext = pdata + offset;
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offset = nextext - rtp->map.data;
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offset = nextext - rtp->map[0].data;
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/* Don't add extra header if there isn't enough space */
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if (rtp->map.size < offset + size + 2)
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if (rtp->map[0].size < offset + size + 2)
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return FALSE;
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nextext[0] = id;
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@ -42,8 +42,9 @@ typedef struct _GstRTPBuffer GstRTPBuffer;
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/**
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* GstRTPBuffer:
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* @buffer: pointer to RTP buffer
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* @flags: flags used when mapping
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* @map: the #GstMapInfo
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* @state: internal state
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* @n_map: number of mappings in @map
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* @map: array of #GstMapInfo
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*
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* Data structure that points to an RTP packet.
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* The size of the structure is made public to allow stack allocations.
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@ -51,10 +52,13 @@ typedef struct _GstRTPBuffer GstRTPBuffer;
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struct _GstRTPBuffer
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{
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GstBuffer *buffer;
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GstMapInfo map;
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guint state;
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guint n_map;
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GstMapInfo map[4];
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};
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#define GST_RTP_BUFFER_INIT { NULL, GST_MAP_INFO_INIT}
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#define GST_RTP_BUFFER_INIT { NULL, { GST_MAP_INFO_INIT, GST_MAP_INFO_INIT, \
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GST_MAP_INFO_INIT, GST_MAP_INFO_INIT} }
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/* creating buffers */
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void gst_rtp_buffer_allocate_data (GstBuffer *buffer, guint payload_len,
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