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lavd/xv: add more supported formats

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Add support for following pixel formats:
- AV_PIX_FMT_UYVY422
- AV_PIX_FMT_YUYV422

Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
This commit is contained in:
Lukasz Marek 2013-11-13 23:40:46 +01:00 committed by Stefano Sabatini
parent 5d8619595b
commit 57bca5a2b6
1 changed files with 39 additions and 13 deletions
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52
libavdevice/xv.c
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@ -51,18 +51,43 @@ typedef struct {
char *display_name;
XvImage* yuv_image;
enum AVPixelFormat image_format;
int image_width, image_height;
XShmSegmentInfo yuv_shminfo;
int xv_port;
} XVContext;
typedef struct XVTagFormatMap
{
int tag;
enum AVPixelFormat format;
} XVTagFormatMap;
static XVTagFormatMap tag_codec_map[] = {
{ MKTAG('I','4','2','0'), AV_PIX_FMT_YUV420P },
{ MKTAG('U','Y','V','Y'), AV_PIX_FMT_UYVY422 },
{ MKTAG('Y','U','Y','2'), AV_PIX_FMT_YUYV422 },
{ 0, AV_PIX_FMT_NONE }
};
static int xv_get_tag_from_format(enum AVPixelFormat format)
{
XVTagFormatMap *m = tag_codec_map;
int i;
for (i = 0; m->tag; m = &tag_codec_map[++i]) {
if (m->format == format)
return m->tag;
}
return 0;
}
static int xv_write_header(AVFormatContext *s)
{
XVContext *xv = s->priv_data;
unsigned int num_adaptors;
XvAdaptorInfo *ai;
XvImageFormatValues *fv;
int num_formats = 0, j;
int num_formats = 0, j, tag;
AVCodecContext *encctx = s->streams[0]->codec;
if ( s->nb_streams > 1
@ -72,6 +97,14 @@ static int xv_write_header(AVFormatContext *s)
return AVERROR(EINVAL);
}
if (!(tag = xv_get_tag_from_format(encctx->pix_fmt))) {
av_log(s, AV_LOG_ERROR,
"Unsupported pixel format '%s', only yuv420p, uyvy422, yuyv422 are currently supported\n",
av_get_pix_fmt_name(encctx->pix_fmt));
return AVERROR_PATCHWELCOME;
}
xv->image_format = encctx->pix_fmt;
xv->display = XOpenDisplay(xv->display_name);
if (!xv->display) {
av_log(s, AV_LOG_ERROR, "Could not open the X11 display '%s'\n", xv->display_name);
@ -100,18 +133,11 @@ static int xv_write_header(AVFormatContext *s)
xv->xv_port = ai[0].base_id;
XvFreeAdaptorInfo(ai);
if (encctx->pix_fmt != AV_PIX_FMT_YUV420P) {
av_log(s, AV_LOG_ERROR,
"Unsupported pixel format '%s', only yuv420p is currently supported\n",
av_get_pix_fmt_name(encctx->pix_fmt));
return AVERROR_PATCHWELCOME;
}
fv = XvListImageFormats(xv->display, xv->xv_port, &num_formats);
if (!fv)
return AVERROR_EXTERNAL;
for (j = 0; j < num_formats; j++) {
if (fv[j].id == MKTAG('I','4','2','0')) {
if (fv[j].id == tag) {
break;
}
}
@ -119,15 +145,15 @@ static int xv_write_header(AVFormatContext *s)
if (j >= num_formats) {
av_log(s, AV_LOG_ERROR,
"Device does not support pixel format yuv420p, aborting\n");
"Device does not support pixel format %s, aborting\n",
av_get_pix_fmt_name(encctx->pix_fmt));
return AVERROR(EINVAL);
}
xv->gc = XCreateGC(xv->display, xv->window, 0, 0);
xv->image_width = encctx->width;
xv->image_height = encctx->height;
xv->yuv_image = XvShmCreateImage(xv->display, xv->xv_port,
MKTAG('I','4','2','0'), 0,
xv->yuv_image = XvShmCreateImage(xv->display, xv->xv_port, tag, 0,
xv->image_width, xv->image_height, &xv->yuv_shminfo);
xv->yuv_shminfo.shmid = shmget(IPC_PRIVATE, xv->yuv_image->data_size,
IPC_CREAT | 0777);
@ -157,7 +183,7 @@ static int xv_write_packet(AVFormatContext *s, AVPacket *pkt)
avpicture_fill(&pict, pkt->data, ctx->pix_fmt, ctx->width, ctx->height);
av_image_copy(data, img->pitches, (const uint8_t **)pict.data, pict.linesize,
AV_PIX_FMT_YUV420P, img->width, img->height);
xv->image_format, img->width, img->height);
XGetWindowAttributes(xv->display, xv->window, &window_attrs);
if (XvShmPutImage(xv->display, xv->xv_port, xv->window, xv->gc,