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Add a caps_to_codecid() function to read properties from a caps function for use in _connect() functions
Original commit message from CVS: Add a caps_to_codecid() function to read properties from a caps function for use in _connect() functions
This commit is contained in:
Ronald S. Bultje
parent
b17e56216c
commit
c3b5d3f3fe
2 changed files with 166 additions and 1 deletions
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@ -147,7 +147,7 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
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caps = gst_caps_append(caps,
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GST_FF_VID_CAPS_NEW ("ffmpeg_divx",
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"video/divx",
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"divxversion", GST_PROPS_INT (5)
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"divxversion", GST_PROPS_INT (5)
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));
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caps = gst_caps_append(caps,
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GST_FF_VID_CAPS_NEW ("ffmpeg_xvid",
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@ -535,3 +535,159 @@ gst_ffmpeg_codectype_to_caps (enum CodecType codec_type,
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return caps;
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}
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/* Convert a GstCaps (audio/raw) to a FFMPEG SampleFmt
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* and other audio properties in a AVCodecContext.
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*
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* For usefullness, see below
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*/
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static void
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gst_ffmpeg_caps_to_smpfmt (GstCaps *caps,
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AVCodecContext *context)
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{
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if (gst_caps_has_property_typed (caps, "width",
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GST_PROPS_INT_TYPE) &&
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gst_caps_has_property_typed (caps, "depth",
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GST_PROPS_INT_TYPE) &&
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gst_caps_has_property_typed (caps, "signed",
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GST_PROPS_BOOLEAN_TYPE) &&
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gst_caps_has_property_typed (caps, "endianness",
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GST_PROPS_INT_TYPE)) {
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gint depth = 0, width = 0, endianness = 0;
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gboolean signedness = FALSE;
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gst_caps_get (caps,
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"width", &width,
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"depth", &depth,
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"endianness", &endianness,
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"signed", &signedness,
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NULL);
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if (width == 16 && depth == 16 &&
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endianness == G_BYTE_ORDER && signedness == TRUE) {
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context->sample_fmt = SAMPLE_FMT_S16;
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}
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}
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if (gst_caps_has_property_typed (caps, "channels",
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GST_PROPS_INT_TYPE)) {
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gst_caps_get_int (caps, "rate", &context->channels);
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}
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if (gst_caps_has_property_typed (caps, "rate",
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GST_PROPS_INT_TYPE)) {
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gst_caps_get_int (caps, "rate", &context->sample_rate);
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}
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}
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/* Convert a GstCaps (video/raw) to a FFMPEG PixFmt
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* and other video properties in a AVCodecContext.
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*
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* For usefullness, see below
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*/
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static void
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gst_ffmpeg_caps_to_pixfmt (GstCaps *caps,
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AVCodecContext *context)
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{
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if (gst_caps_has_property_typed (caps, "width",
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GST_PROPS_INT_TYPE) &&
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gst_caps_has_property_typed (caps, "height",
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GST_PROPS_INT_TYPE)) {
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gst_caps_get (caps,
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"width", &context->width,
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"height", &context->height,
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NULL);
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}
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if (gst_caps_has_property_typed (caps, "format",
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GST_PROPS_FOURCC_TYPE)) {
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guint32 fourcc;
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gst_caps_get_fourcc_int (caps, "format", &fourcc);
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switch (fourcc) {
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case GST_MAKE_FOURCC ('Y','U','Y','2'):
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context->pix_fmt = PIX_FMT_YUV422;
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break;
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case GST_MAKE_FOURCC ('I','4','2','0'):
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context->pix_fmt = PIX_FMT_YUV420P;
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break;
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case GST_MAKE_FOURCC ('Y','4','1','P'):
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context->pix_fmt = PIX_FMT_YUV411P;
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break;
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case GST_MAKE_FOURCC ('R','G','B',' '):
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if (gst_caps_has_property_typed (caps, "depth",
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GST_PROPS_INT_TYPE) &&
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gst_caps_has_property_typed (caps, "endianness",
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GST_PROPS_INT_TYPE)) {
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gint depth = 0, endianness = 0;
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gst_caps_get_int (caps, "depth", &depth);
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gst_caps_get_int (caps, "endianness", &endianness);
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switch (depth) {
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case 32:
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if (endianness == G_BYTE_ORDER)
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context->pix_fmt = PIX_FMT_RGBA32;
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break;
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case 24:
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switch (endianness) {
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case G_LITTLE_ENDIAN:
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context->pix_fmt = PIX_FMT_BGR24;
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break;
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case G_BIG_ENDIAN:
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context->pix_fmt = PIX_FMT_RGB24;
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break;
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default:
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/* nothing */
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break;
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}
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break;
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case 16:
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if (endianness == G_BYTE_ORDER)
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context->pix_fmt = PIX_FMT_RGB565;
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break;
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case 15:
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if (endianness == G_BYTE_ORDER)
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context->pix_fmt = PIX_FMT_RGB555;
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break;
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default:
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/* nothing */
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break;
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}
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}
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break;
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default:
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/* nothing */
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break;
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}
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}
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}
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/* Convert a GstCaps and a FFMPEG codec Type to a
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* AVCodecContext. If the context is ommitted, no fixed values
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* for video/audio size will be included in the context
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*
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* CodecType is primarily meant for uncompressed data GstCaps!
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*/
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void
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gst_ffmpeg_caps_to_codectype (enum CodecType type,
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GstCaps *caps,
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AVCodecContext *context)
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{
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if (context == NULL)
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return;
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switch (type) {
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case CODEC_TYPE_VIDEO:
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gst_ffmpeg_caps_to_pixfmt (caps, context);
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break;
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case CODEC_TYPE_AUDIO:
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gst_ffmpeg_caps_to_smpfmt (caps, context);
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break;
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default:
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/* unknown */
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break;
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}
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}
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@ -43,4 +43,13 @@ GstCaps *
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gst_ffmpeg_codectype_to_caps (enum CodecType codec_type,
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AVCodecContext *context);
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/* caps_to_codectype () transforms a GstCaps that belongs to
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* a pad for uncompressed data to a filled-in context
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*/
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void
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gst_ffmpeg_caps_to_codectype (enum CodecType type,
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GstCaps *caps,
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AVCodecContext *context);
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#endif /* __GST_FFMPEG_CODECMAP_H__ */
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