diff options
| author | Dave Rice <dave@dericed.com> | 2018-10-01 17:17:24 -0400 |
|---|---|---|
| committer | Marton Balint <cus@passwd.hu> | 2018-10-23 19:42:32 +0200 |
| commit | 110b4a491859e6e635f6513670785a9378c9551b (patch) | |
| tree | 96c855fccaf437beefcba950433f3ea382217445 /libavdevice/sdl2.c | |
| parent | 3f2103ec73c96d530b0516869363ad9ea730c909 (diff) | |
| download | ffmpeg-110b4a491859e6e635f6513670785a9378c9551b.tar.gz | |
avdevice/sdl2: add option to set window position
Allows arrangement of multiple windows such as:
ffmpeg -re -f lavfi -i mandelbrot -f sdl -window_x 1 -window_y 1 mandelbrot -vf waveform,format=yuv420p -f sdl -window_x 641 -window_y 1 waveform -vf vectorscope,format=yuv420p -f sdl -window_x 1 -window_y 481 vectorscop
Some changes by Marton Balint:
- allow negative position (partially or fully out-of-screen positions seem to
be sanitized automatically by SDL (or my WM?), so no special handling is
needed)
- only show window after the position is set
- do not use resizable and borderless flags at the same time, that caused
issues in ffplay
- add docs
Signed-off-by: Marton Balint <cus@passwd.hu>
Diffstat (limited to 'libavdevice/sdl2.c')
| -rw-r--r-- | libavdevice/sdl2.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/libavdevice/sdl2.c b/libavdevice/sdl2.c index da5143078e..d6fc74a66c 100644 --- a/libavdevice/sdl2.c +++ b/libavdevice/sdl2.c @@ -40,6 +40,7 @@ typedef struct { SDL_Renderer *renderer; char *window_title; int window_width, window_height; /**< size of the window */ + int window_x, window_y; /**< position of the window */ int window_fullscreen; int window_borderless; int enable_quit_action; @@ -155,8 +156,6 @@ static int sdl2_write_trailer(AVFormatContext *s) return 0; } -#define SDL_BASE_FLAGS (SDL_SWSURFACE|SDL_WINDOW_RESIZABLE) - static int sdl2_write_header(AVFormatContext *s) { SDLContext *sdl = s->priv_data; @@ -196,8 +195,9 @@ static int sdl2_write_header(AVFormatContext *s) } /* resize texture to width and height from the codec context information */ - flags = SDL_BASE_FLAGS | (sdl->window_fullscreen ? SDL_WINDOW_FULLSCREEN : 0) | - (sdl->window_borderless ? SDL_WINDOW_BORDERLESS : 0); + flags = SDL_WINDOW_HIDDEN | + (sdl->window_fullscreen ? SDL_WINDOW_FULLSCREEN : 0) | + (sdl->window_borderless ? SDL_WINDOW_BORDERLESS : SDL_WINDOW_RESIZABLE); /* initialization */ if (!sdl->inited){ @@ -216,6 +216,8 @@ static int sdl2_write_header(AVFormatContext *s) } SDL_SetWindowTitle(sdl->window, sdl->window_title); + SDL_SetWindowPosition(sdl->window, sdl->window_x, sdl->window_y); + SDL_ShowWindow(sdl->window); sdl->texture = SDL_CreateTexture(sdl->renderer, sdl->texture_fmt, SDL_TEXTUREACCESS_STREAMING, codecpar->width, codecpar->height); @@ -337,6 +339,8 @@ static int sdl2_write_packet(AVFormatContext *s, AVPacket *pkt) static const AVOption options[] = { { "window_title", "set SDL window title", OFFSET(window_title), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_ENCODING_PARAM }, { "window_size", "set SDL window forced size", OFFSET(window_width), AV_OPT_TYPE_IMAGE_SIZE, { .str = NULL }, 0, 0, AV_OPT_FLAG_ENCODING_PARAM }, + { "window_x", "set SDL window x position", OFFSET(window_x), AV_OPT_TYPE_INT, { .i64 = SDL_WINDOWPOS_CENTERED }, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM }, + { "window_y", "set SDL window y position", OFFSET(window_y), AV_OPT_TYPE_INT, { .i64 = SDL_WINDOWPOS_CENTERED }, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM }, { "window_fullscreen", "set SDL window fullscreen", OFFSET(window_fullscreen), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_ENCODING_PARAM }, { "window_borderless", "set SDL window border off", OFFSET(window_borderless), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, AV_OPT_FLAG_ENCODING_PARAM }, { "window_enable_quit", "set if quit action is available", OFFSET(enable_quit_action), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM }, |