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ffmpeg: add GstVideoFormat helper function

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Add a function to convert an ffmpeg pixfmt to a GStreamer GstVideoFormat.
This commit is contained in:
Wim Taymans 2011-07-29 10:25:03 +02:00
parent 408b54f5e4
commit 62bb960f3a
2 changed files with 73 additions and 60 deletions
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129
ext/ffmpeg/gstffmpegcodecmap.c
View file

@ -1693,6 +1693,70 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
return caps;
}
/* Convert a FFMPEG Pixel Format to a GStreamer VideoFormat */
GstVideoFormat
gst_ffmpeg_pixfmt_to_video_format (enum PixelFormat pix_fmt)
{
GstVideoFormat fmt;
switch (pix_fmt) {
case PIX_FMT_YUVJ420P:
case PIX_FMT_YUV420P:
fmt = GST_VIDEO_FORMAT_I420;
break;
case PIX_FMT_YUVA420P:
fmt = GST_VIDEO_FORMAT_A420;
break;
case PIX_FMT_YUYV422:
fmt = GST_VIDEO_FORMAT_YUY2;
break;
case PIX_FMT_RGB24:
fmt = GST_VIDEO_FORMAT_RGB;
break;
case PIX_FMT_BGR24:
fmt = GST_VIDEO_FORMAT_BGR;
break;
case PIX_FMT_YUVJ422P:
case PIX_FMT_YUV422P:
fmt = GST_VIDEO_FORMAT_Y42B;
break;
case PIX_FMT_YUVJ444P:
case PIX_FMT_YUV444P:
fmt = GST_VIDEO_FORMAT_Y444;
break;
case PIX_FMT_RGB32:
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
fmt = GST_VIDEO_FORMAT_xRGB;
#else
fmt = GST_VIDEO_FORMAT_BGRx;
#endif
break;
case PIX_FMT_YUV410P:
fmt = GST_VIDEO_FORMAT_YUV9;
break;
case PIX_FMT_YUV411P:
fmt = GST_VIDEO_FORMAT_Y41B;
break;
case PIX_FMT_RGB565:
fmt = GST_VIDEO_FORMAT_RGB16;
break;
case PIX_FMT_RGB555:
fmt = GST_VIDEO_FORMAT_RGB15;
break;
case PIX_FMT_PAL8:
fmt = GST_VIDEO_FORMAT_RGB8_PALETTED;
break;
case PIX_FMT_GRAY8:
fmt = GST_VIDEO_FORMAT_GRAY8;
break;
default:
/* give up ... */
fmt = GST_VIDEO_FORMAT_UNKNOWN;
break;
}
return fmt;
}
/* Convert a FFMPEG Pixel Format and optional AVCodecContext
* to a GstCaps. If the context is ommitted, no fixed values
* for video/audio size will be included in the GstCaps
@ -1705,68 +1769,13 @@ gst_ffmpeg_pixfmt_to_caps (enum PixelFormat pix_fmt, AVCodecContext * context,
enum CodecID codec_id)
{
GstCaps *caps = NULL;
const gchar *fmt = NULL;
GstVideoFormat format;
switch (pix_fmt) {
case PIX_FMT_YUVJ420P:
case PIX_FMT_YUV420P:
fmt = "I420";
break;
case PIX_FMT_YUVA420P:
fmt = "A420";
break;
case PIX_FMT_YUYV422:
fmt = "YUY2";
break;
case PIX_FMT_RGB24:
fmt = "RGB";
break;
case PIX_FMT_BGR24:
fmt = "BGR";
break;
case PIX_FMT_YUVJ422P:
case PIX_FMT_YUV422P:
fmt = "YV2B";
break;
case PIX_FMT_YUVJ444P:
case PIX_FMT_YUV444P:
fmt = "Y444";
break;
case PIX_FMT_RGB32:
#if (G_BYTE_ORDER == G_BIG_ENDIAN)
fmt = "xRGB";
#else
fmt = "BGRx";
#endif
break;
case PIX_FMT_YUV410P:
fmt = "YUV9";
break;
case PIX_FMT_YUV411P:
fmt = "Y41B";
break;
case PIX_FMT_RGB565:
fmt = "RGB16";
break;
case PIX_FMT_RGB555:
fmt = "RGB15";
break;
case PIX_FMT_PAL8:
fmt = "RGB8_PALETTED";
break;
case PIX_FMT_GRAY8:
fmt = "GRAY8";
break;
default:
/* give up ... */
break;
}
format = gst_ffmpeg_pixfmt_to_video_format (pix_fmt);
if (caps == NULL) {
if (fmt) {
caps = gst_ff_vid_caps_new (context, codec_id, "video/x-raw",
"format", G_TYPE_STRING, fmt, NULL);
}
if (format != GST_VIDEO_FORMAT_UNKNOWN) {
caps = gst_ff_vid_caps_new (context, codec_id, "video/x-raw",
"format", G_TYPE_STRING, gst_video_format_to_string (format), NULL);
}
if (caps != NULL) {

4
ext/ffmpeg/gstffmpegcodecmap.h
View file

@ -27,6 +27,7 @@
#endif
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/audio/multichannel.h>
/*
@ -101,6 +102,9 @@ gst_ffmpeg_caps_with_codectype (enum AVMediaType type,
GstCaps *
gst_ffmpeg_formatid_to_caps (const gchar *format_name);
GstVideoFormat
gst_ffmpeg_pixfmt_to_video_format (enum PixelFormat pix_fmt);
/* Convert a FFMPEG Pixel Format and optional AVCodecContext
* to a GstCaps. If the context is ommitted, no fixed values
* for video/audio size will be included in the GstCaps