From c3b5d3f3fe6ab24629ba15b0eba0cb194a799be3 Mon Sep 17 00:00:00 2001 From: "Ronald S. Bultje" Date: Sat, 7 Jun 2003 20:45:56 +0000 Subject: [PATCH] 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 --- ext/ffmpeg/gstffmpegcodecmap.c | 158 ++++++++++++++++++++++++++++++++++++++++- ext/ffmpeg/gstffmpegcodecmap.h | 9 +++ 2 files changed, 166 insertions(+), 1 deletion(-) diff --git a/ext/ffmpeg/gstffmpegcodecmap.c b/ext/ffmpeg/gstffmpegcodecmap.c index 2e38314..4037979 100644 --- a/ext/ffmpeg/gstffmpegcodecmap.c +++ b/ext/ffmpeg/gstffmpegcodecmap.c @@ -147,7 +147,7 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id, caps = gst_caps_append(caps, GST_FF_VID_CAPS_NEW ("ffmpeg_divx", "video/divx", - "divxversion", GST_PROPS_INT (5) + "divxversion", GST_PROPS_INT (5) )); caps = gst_caps_append(caps, GST_FF_VID_CAPS_NEW ("ffmpeg_xvid", @@ -535,3 +535,159 @@ gst_ffmpeg_codectype_to_caps (enum CodecType codec_type, return caps; } + +/* Convert a GstCaps (audio/raw) to a FFMPEG SampleFmt + * and other audio properties in a AVCodecContext. + * + * For usefullness, see below + */ + +static void +gst_ffmpeg_caps_to_smpfmt (GstCaps *caps, + AVCodecContext *context) +{ + if (gst_caps_has_property_typed (caps, "width", + GST_PROPS_INT_TYPE) && + gst_caps_has_property_typed (caps, "depth", + GST_PROPS_INT_TYPE) && + gst_caps_has_property_typed (caps, "signed", + GST_PROPS_BOOLEAN_TYPE) && + gst_caps_has_property_typed (caps, "endianness", + GST_PROPS_INT_TYPE)) { + gint depth = 0, width = 0, endianness = 0; + gboolean signedness = FALSE; + gst_caps_get (caps, + "width", &width, + "depth", &depth, + "endianness", &endianness, + "signed", &signedness, + NULL); + if (width == 16 && depth == 16 && + endianness == G_BYTE_ORDER && signedness == TRUE) { + context->sample_fmt = SAMPLE_FMT_S16; + } + } + + if (gst_caps_has_property_typed (caps, "channels", + GST_PROPS_INT_TYPE)) { + gst_caps_get_int (caps, "rate", &context->channels); + } + + if (gst_caps_has_property_typed (caps, "rate", + GST_PROPS_INT_TYPE)) { + gst_caps_get_int (caps, "rate", &context->sample_rate); + } +} + +/* Convert a GstCaps (video/raw) to a FFMPEG PixFmt + * and other video properties in a AVCodecContext. + * + * For usefullness, see below + */ + +static void +gst_ffmpeg_caps_to_pixfmt (GstCaps *caps, + AVCodecContext *context) +{ + if (gst_caps_has_property_typed (caps, "width", + GST_PROPS_INT_TYPE) && + gst_caps_has_property_typed (caps, "height", + GST_PROPS_INT_TYPE)) { + gst_caps_get (caps, + "width", &context->width, + "height", &context->height, + NULL); + } + + if (gst_caps_has_property_typed (caps, "format", + GST_PROPS_FOURCC_TYPE)) { + guint32 fourcc; + gst_caps_get_fourcc_int (caps, "format", &fourcc); + + switch (fourcc) { + case GST_MAKE_FOURCC ('Y','U','Y','2'): + context->pix_fmt = PIX_FMT_YUV422; + break; + case GST_MAKE_FOURCC ('I','4','2','0'): + context->pix_fmt = PIX_FMT_YUV420P; + break; + case GST_MAKE_FOURCC ('Y','4','1','P'): + context->pix_fmt = PIX_FMT_YUV411P; + break; + case GST_MAKE_FOURCC ('R','G','B',' '): + if (gst_caps_has_property_typed (caps, "depth", + GST_PROPS_INT_TYPE) && + gst_caps_has_property_typed (caps, "endianness", + GST_PROPS_INT_TYPE)) { + gint depth = 0, endianness = 0; + gst_caps_get_int (caps, "depth", &depth); + gst_caps_get_int (caps, "endianness", &endianness); + + switch (depth) { + case 32: + if (endianness == G_BYTE_ORDER) + context->pix_fmt = PIX_FMT_RGBA32; + break; + case 24: + switch (endianness) { + case G_LITTLE_ENDIAN: + context->pix_fmt = PIX_FMT_BGR24; + break; + case G_BIG_ENDIAN: + context->pix_fmt = PIX_FMT_RGB24; + break; + default: + /* nothing */ + break; + } + break; + case 16: + if (endianness == G_BYTE_ORDER) + context->pix_fmt = PIX_FMT_RGB565; + break; + case 15: + if (endianness == G_BYTE_ORDER) + context->pix_fmt = PIX_FMT_RGB555; + break; + default: + /* nothing */ + break; + } + } + break; + default: + /* nothing */ + break; + } + } +} + +/* Convert a GstCaps and a FFMPEG codec Type to a + * AVCodecContext. If the context is ommitted, no fixed values + * for video/audio size will be included in the context + * + * CodecType is primarily meant for uncompressed data GstCaps! + */ + +void +gst_ffmpeg_caps_to_codectype (enum CodecType type, + GstCaps *caps, + AVCodecContext *context) +{ + if (context == NULL) + return; + + switch (type) { + case CODEC_TYPE_VIDEO: + gst_ffmpeg_caps_to_pixfmt (caps, context); + break; + + case CODEC_TYPE_AUDIO: + gst_ffmpeg_caps_to_smpfmt (caps, context); + break; + + default: + /* unknown */ + break; + } +} diff --git a/ext/ffmpeg/gstffmpegcodecmap.h b/ext/ffmpeg/gstffmpegcodecmap.h index ef89531..e3d55a3 100644 --- a/ext/ffmpeg/gstffmpegcodecmap.h +++ b/ext/ffmpeg/gstffmpegcodecmap.h @@ -43,4 +43,13 @@ GstCaps * gst_ffmpeg_codectype_to_caps (enum CodecType codec_type, AVCodecContext *context); +/* caps_to_codectype () transforms a GstCaps that belongs to + * a pad for uncompressed data to a filled-in context + */ + +void +gst_ffmpeg_caps_to_codectype (enum CodecType type, + GstCaps *caps, + AVCodecContext *context); + #endif /* __GST_FFMPEG_CODECMAP_H__ */ -- 2.7.4