mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-23 16:50:47 +00:00
pnm: Support ASCII format for encoding and handle unsupported formats better in the decoder
Fixes bug #595215.
This commit is contained in:
Lutz Mueller
Sebastian Dröge
parent
50d08ce732
commit
f270259cc8
5 changed files with 127 additions and 67 deletions
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@ -57,16 +57,13 @@ gst_my_typefind_function (GstTypeFind * tf, gpointer d)
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return;
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case GST_PNM_INFO_MNGR_RESULT_FINISHED:
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switch (mngr.info.type) {
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case GST_PNM_TYPE_BITMAP_ASCII:
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case GST_PNM_TYPE_BITMAP_RAW:
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case GST_PNM_TYPE_BITMAP:
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gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, BITMAP_CAPS);
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return;
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case GST_PNM_TYPE_GRAYMAP_ASCII:
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case GST_PNM_TYPE_GRAYMAP_RAW:
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case GST_PNM_TYPE_GRAYMAP:
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gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, GRAYMAP_CAPS);
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return;
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case GST_PNM_TYPE_PIXMAP_ASCII:
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case GST_PNM_TYPE_PIXMAP_RAW:
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case GST_PNM_TYPE_PIXMAP:
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gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, PIXMAP_CAPS);
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return;
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}
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@ -68,8 +68,7 @@ gst_pnmdec_push (GstPnmdec * s, GstPad * src, GstBuffer * buf)
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GstBuffer *obuf;
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guint i;
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if (s->mngr.info.type == GST_PNM_TYPE_PIXMAP_RAW ||
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s->mngr.info.type == GST_PNM_TYPE_PIXMAP_ASCII) {
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if (s->mngr.info.type == GST_PNM_TYPE_PIXMAP) {
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i_rowstride = 3 * s->mngr.info.width;
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o_rowstride = GST_ROUND_UP_4 (i_rowstride);
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} else {
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@ -115,17 +114,25 @@ gst_pnmdec_chain (GstPad * pad, GstBuffer * data)
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goto out;
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case GST_PNM_INFO_MNGR_RESULT_FINISHED:
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offset = s->mngr.data_offset;
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if (s->mngr.info.encoding == GST_PNM_ENCODING_ASCII) {
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GST_DEBUG_OBJECT (s, "FIXME: ASCII encoding not implemented!");
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gst_buffer_unref (data);
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r = GST_FLOW_ERROR;
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goto out;
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}
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caps = gst_caps_copy (gst_pad_get_pad_template_caps (src));
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switch (s->mngr.info.type) {
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case GST_PNM_TYPE_BITMAP_RAW:
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case GST_PNM_TYPE_BITMAP_ASCII:
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case GST_PNM_TYPE_GRAYMAP_RAW:
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case GST_PNM_TYPE_GRAYMAP_ASCII:
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case GST_PNM_TYPE_BITMAP:
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GST_DEBUG_OBJECT (s, "FIXME: BITMAP format not implemented!");
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gst_caps_unref (caps);
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gst_buffer_unref (data);
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r = GST_FLOW_ERROR;
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goto out;
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case GST_PNM_TYPE_GRAYMAP:
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gst_caps_remove_structure (caps, 0);
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s->size = s->mngr.info.width * s->mngr.info.height * 1;
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break;
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case GST_PNM_TYPE_PIXMAP_RAW:
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case GST_PNM_TYPE_PIXMAP_ASCII:
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case GST_PNM_TYPE_PIXMAP:
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gst_caps_remove_structure (caps, 1);
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s->size = s->mngr.info.width * s->mngr.info.height * 3;
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break;
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@ -136,6 +143,7 @@ gst_pnmdec_chain (GstPad * pad, GstBuffer * data)
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GST_TYPE_FRACTION, 0, 1, NULL);
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if (!gst_pad_set_caps (src, caps)) {
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gst_caps_unref (caps);
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gst_buffer_unref (data);
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r = GST_FLOW_ERROR;
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goto out;
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}
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@ -144,6 +152,7 @@ gst_pnmdec_chain (GstPad * pad, GstBuffer * data)
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}
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if (offset == GST_BUFFER_SIZE (data)) {
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gst_buffer_unref (data);
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r = GST_FLOW_OK;
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goto out;
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}
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@ -19,13 +19,15 @@
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/**
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* SECTION:element-pnmenc
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*
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* Encodes pnm images.
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* Encodes pnm images. This plugin supports both raw and ASCII encoding.
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* To enable ASCII encoding, set the parameter ascii to TRUE. If you omit
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* the parameter or set it to FALSE, the output will be raw encoded.
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*
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* <refsect">
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* <title>Example launch line</title>
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* |[
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* gst-launch videotestsrc num_buffers=1 ! pnmenc ! ffmpegcolorspace ! "video/x-raw-gray" ! pnmenc ! filesink location=test.pnm
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* ]| The above pipeline writes a test pnm file.
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* gst-launch videotestsrc num_buffers=1 ! ffmpegcolorspace ! "video/x-raw-gray" ! pnmenc ascii=true ! filesink location=test.pnm
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* ]| The above pipeline writes a test pnm file (ASCII encoding).
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* </refsect2>
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*/
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@ -41,6 +43,13 @@
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#include <string.h>
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enum
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{
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GST_PNMENC_PROP_0,
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GST_PNMENC_PROP_ASCII
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/* Add here. */
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};
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static GstElementDetails pnmenc_details =
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GST_ELEMENT_DETAILS ("PNM converter", "Codec/Encoder/Image",
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"Encodes in PNM format",
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@ -57,6 +66,42 @@ static GstStaticPadTemplate src_pad_template =
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GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
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GST_STATIC_CAPS (MIME_ALL));
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static void
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gst_pnmenc_set_property (GObject * object, guint prop_id, const GValue * value,
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GParamSpec * pspec)
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{
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GstPnmenc *s = GST_PNMENC (object);
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switch (prop_id) {
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case GST_PNMENC_PROP_ASCII:
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if (g_value_get_boolean (value))
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s->info.encoding = GST_PNM_ENCODING_ASCII;
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else
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s->info.encoding = GST_PNM_ENCODING_RAW;
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s->info.fields |= GST_PNM_INFO_FIELDS_ENCODING;
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_pnmenc_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstPnmenc *s = GST_PNMENC (object);
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switch (prop_id) {
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case GST_PNMENC_PROP_ASCII:
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g_value_set_boolean (value, s->info.encoding == GST_PNM_ENCODING_ASCII);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static GstFlowReturn
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gst_pnmenc_chain (GstPad * pad, GstBuffer * buf)
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{
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@ -65,14 +110,10 @@ gst_pnmenc_chain (GstPad * pad, GstBuffer * buf)
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gchar *header;
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GstBuffer *out;
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if (s->info.fields != GST_PNM_INFO_FIELDS_ALL) {
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r = GST_FLOW_NOT_NEGOTIATED;
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goto out;
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}
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/* Assumption: One buffer, one image. That is, always first write header. */
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header = g_strdup_printf ("P%i\n%i %i\n%i\n",
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s->info.type, s->info.width, s->info.height, s->info.max);
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s->info.type + 3 * (1 - s->info.encoding), s->info.width, s->info.height,
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s->info.max);
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out = gst_buffer_new ();
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gst_buffer_set_data (out, (guchar *) header, strlen (header));
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gst_buffer_set_caps (out, GST_PAD_CAPS (s->src));
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@ -86,7 +127,7 @@ gst_pnmenc_chain (GstPad * pad, GstBuffer * buf)
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GstBuffer *obuf;
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guint i;
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if (s->info.type == GST_PNM_TYPE_PIXMAP_RAW) {
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if (s->info.type == GST_PNM_TYPE_PIXMAP) {
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o_rowstride = 3 * s->info.width;
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i_rowstride = GST_ROUND_UP_4 (o_rowstride);
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} else {
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@ -104,6 +145,25 @@ gst_pnmenc_chain (GstPad * pad, GstBuffer * buf)
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/* Pass through the data. */
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buf = gst_buffer_make_metadata_writable (buf);
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}
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/* We might need to convert to ASCII... */
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if (s->info.encoding == GST_PNM_ENCODING_ASCII) {
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GstBuffer *obuf;
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guint i, o;
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obuf = gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buf) * (4 + 1 / 20.));
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for (i = o = 0; i < GST_BUFFER_SIZE (buf); i++) {
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g_snprintf ((char *) GST_BUFFER_DATA (obuf) + o, 4, "%3i",
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GST_BUFFER_DATA (buf)[i]);
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o += 3;
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GST_BUFFER_DATA (obuf)[o++] = ' ';
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if (!(i % 20))
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GST_BUFFER_DATA (obuf)[o++] = '\n';
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}
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gst_buffer_unref (buf);
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buf = obuf;
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}
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gst_buffer_set_caps (buf, GST_PAD_CAPS (s->src));
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r = gst_pad_push (s->src, buf);
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@ -127,10 +187,10 @@ gst_pnmenc_setcaps_func_sink (GstPad * pad, GstCaps * caps)
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/* Set caps on the source. */
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if (!strcmp (mime, "video/x-raw-rgb")) {
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s->info.type = GST_PNM_TYPE_PIXMAP_RAW;
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s->info.type = GST_PNM_TYPE_PIXMAP;
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srccaps = gst_caps_from_string (MIME_PM);
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} else if (!strcmp (mime, "video/x-raw-gray")) {
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s->info.type = GST_PNM_TYPE_GRAYMAP_RAW;
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s->info.type = GST_PNM_TYPE_GRAYMAP;
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srccaps = gst_caps_from_string (MIME_GM);
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} else {
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r = FALSE;
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@ -187,7 +247,14 @@ gst_pnmenc_base_init (gpointer g_class)
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static void
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gst_pnmenc_class_init (GstPnmencClass * klass)
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{
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/* Nothing to see here. Move along. */
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->set_property = gst_pnmenc_set_property;
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gobject_class->get_property = gst_pnmenc_get_property;
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g_object_class_install_property (gobject_class, GST_PNMENC_PROP_ASCII,
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g_param_spec_boolean ("ascii", "ASCII Encoding", "The output will be "
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"ASCII encoded", FALSE, G_PARAM_READWRITE));
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}
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GST_BOILERPLATE (GstPnmenc, gst_pnmenc, GstElement, GST_TYPE_ELEMENT)
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@ -94,27 +94,34 @@ gst_pnm_info_mngr_scan (GstPnmInfoMngr * mngr, const guint8 * buf,
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case GST_PNM_INFO_MNGR_STATE_DATA_TYPE:
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switch (buf[i++]) {
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case '1':
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mngr->info.type = GST_PNM_TYPE_BITMAP_ASCII;
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mngr->info.type = GST_PNM_TYPE_BITMAP;
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mngr->info.encoding = GST_PNM_ENCODING_ASCII;
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break;
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case '2':
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mngr->info.type = GST_PNM_TYPE_GRAYMAP_ASCII;
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mngr->info.type = GST_PNM_TYPE_GRAYMAP;
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mngr->info.encoding = GST_PNM_ENCODING_ASCII;
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break;
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case '3':
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mngr->info.type = GST_PNM_TYPE_PIXMAP_ASCII;
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mngr->info.type = GST_PNM_TYPE_PIXMAP;
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mngr->info.encoding = GST_PNM_ENCODING_ASCII;
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break;
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case '4':
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mngr->info.type = GST_PNM_TYPE_BITMAP_RAW;
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mngr->info.type = GST_PNM_TYPE_BITMAP;
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mngr->info.encoding = GST_PNM_ENCODING_RAW;
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break;
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case '5':
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mngr->info.type = GST_PNM_TYPE_GRAYMAP_RAW;
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mngr->info.type = GST_PNM_TYPE_GRAYMAP;
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mngr->info.encoding = GST_PNM_ENCODING_RAW;
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break;
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case '6':
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mngr->info.type = GST_PNM_TYPE_PIXMAP_RAW;
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mngr->info.type = GST_PNM_TYPE_PIXMAP;
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mngr->info.encoding = GST_PNM_ENCODING_RAW;
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break;
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default:
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return GST_PNM_INFO_MNGR_RESULT_FAILED;
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}
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mngr->info.fields |= GST_PNM_INFO_FIELDS_TYPE;
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mngr->info.fields |=
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GST_PNM_INFO_FIELDS_TYPE | GST_PNM_INFO_FIELDS_ENCODING;
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mngr->state = GST_PNM_INFO_MNGR_STATE_WHITE_SPACE;
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if (i == buf_len)
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return GST_PNM_INFO_MNGR_RESULT_READING;
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@ -177,27 +184,3 @@ gst_pnm_info_mngr_scan (GstPnmInfoMngr * mngr, const guint8 * buf,
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}
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return GST_PNM_INFO_MNGR_RESULT_FAILED;
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}
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GType
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gst_pnm_type_get_type (void)
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{
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static GType etype = 0;
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if (etype == 0) {
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static const GEnumValue values[] = {
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{GST_PNM_TYPE_BITMAP_RAW, "GST_PNM_TYPE_BITMAP_RAW", MIME_BM " (ascii)"},
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{GST_PNM_TYPE_GRAYMAP_ASCII, "GST_PNM_TYPE_BITMAP_ASCII",
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MIME_BM " (raw)"},
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{GST_PNM_TYPE_GRAYMAP_RAW, "GST_PNM_TYPE_GRAYMAP_RAW",
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MIME_GM " (ascii)"},
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{GST_PNM_TYPE_GRAYMAP_ASCII, "GST_PNM_TYPE_GRAYMAP_ASCII",
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MIME_GM " (raw)"},
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{GST_PNM_TYPE_PIXMAP_RAW, "GST_PNM_TYPE_PIXMAP_RAW", MIME_PM " (ascii)"},
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{GST_PNM_TYPE_PIXMAP_ASCII, "GST_PNM_TYPE_PIXMAP_ASCII",
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MIME_PM " (raw)"},
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{0, NULL, NULL}
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};
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etype = g_enum_register_static ("GstPnmdecType", values);
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}
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return etype;
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}
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@ -33,26 +33,30 @@ typedef enum
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GST_PNM_INFO_FIELDS_TYPE = 1 << 0,
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GST_PNM_INFO_FIELDS_WIDTH = 1 << 1,
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GST_PNM_INFO_FIELDS_HEIGHT = 1 << 2,
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GST_PNM_INFO_FIELDS_MAX = 1 << 3
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GST_PNM_INFO_FIELDS_MAX = 1 << 3,
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GST_PNM_INFO_FIELDS_ENCODING = 1 << 4
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} GstPnmInfoFields;
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#define GST_PNM_INFO_FIELDS_ALL (GST_PNM_INFO_FIELDS_TYPE | GST_PNM_INFO_FIELDS_WIDTH | GST_PNM_INFO_FIELDS_HEIGHT | GST_PNM_INFO_FIELDS_MAX)
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#define GST_PNM_INFO_FIELDS_ALL (GST_PNM_INFO_FIELDS_TYPE | GST_PNM_INFO_FIELDS_WIDTH | GST_PNM_INFO_FIELDS_HEIGHT | GST_PNM_INFO_FIELDS_MAX | GST_PNM_INFO_FIELDS_ENCODING)
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typedef enum
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{
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GST_PNM_TYPE_BITMAP_ASCII = 1,
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GST_PNM_TYPE_GRAYMAP_ASCII = 2,
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GST_PNM_TYPE_PIXMAP_ASCII = 3,
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GST_PNM_TYPE_BITMAP_RAW = 4,
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GST_PNM_TYPE_GRAYMAP_RAW = 5,
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GST_PNM_TYPE_PIXMAP_RAW = 6
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GST_PNM_TYPE_BITMAP = 1,
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GST_PNM_TYPE_GRAYMAP = 2,
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GST_PNM_TYPE_PIXMAP = 3
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} GstPnmType;
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GType gst_pnm_type_get_type (void);
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typedef enum
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{
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GST_PNM_ENCODING_RAW = 0,
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GST_PNM_ENCODING_ASCII = 1
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} GstPnmEncoding;
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typedef struct
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{
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GstPnmInfoFields fields;
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GstPnmType type;
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GstPnmEncoding encoding;
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guint width, height, max;
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} GstPnmInfo;
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