}
}
+struct VideoFormatEntry {
+ uint16_t normalized_video_format;
+ unsigned width, height, second_field_start;
+ unsigned extra_lines_top, extra_lines_bottom;
+ unsigned frame_rate_nom, frame_rate_den;
+ bool interlaced;
+};
+
+// Get details for the given video format; returns false if detection was incomplete.
+bool decode_video_format(uint16_t video_format, VideoFormat *decoded_video_format)
+{
+ decoded_video_format->id = video_format;
+ decoded_video_format->interlaced = false;
+
+ // TODO: Add these for all formats as we find them.
+ decoded_video_format->extra_lines_top = decoded_video_format->extra_lines_bottom = decoded_video_format->second_field_start = 0;
+
+ if (video_format == 0x0800) {
+ // No video signal. These green pseudo-frames seem to come at about 30.13 Hz.
+ // It's a strange thing, but what can you do.
+ decoded_video_format->width = 720;
+ decoded_video_format->height = 525;
+ decoded_video_format->extra_lines_top = 0;
+ decoded_video_format->extra_lines_bottom = 0;
+ decoded_video_format->frame_rate_nom = 3013;
+ decoded_video_format->frame_rate_den = 100;
+ decoded_video_format->has_signal = false;
+ return true;
+ }
+ if ((video_format & 0xe800) != 0xe800) {
+ printf("Video format 0x%04x does not appear to be a video format. Assuming 60 Hz.\n",
+ video_format);
+ decoded_video_format->width = 0;
+ decoded_video_format->height = 0;
+ decoded_video_format->extra_lines_top = 0;
+ decoded_video_format->extra_lines_bottom = 0;
+ decoded_video_format->frame_rate_nom = 60;
+ decoded_video_format->frame_rate_den = 1;
+ decoded_video_format->has_signal = false;
+ return false;
+ }
+
+ decoded_video_format->has_signal = true;
+
+ // NTSC (480i59.94, I suppose). A special case, see below.
+ if (video_format == 0xe901 || video_format == 0xe9c1 || video_format == 0xe801) {
+ decoded_video_format->width = 720;
+ decoded_video_format->height = 480;
+ decoded_video_format->extra_lines_top = 17;
+ decoded_video_format->extra_lines_bottom = 28;
+ decoded_video_format->frame_rate_nom = 30000;
+ decoded_video_format->frame_rate_den = 1001;
+ decoded_video_format->second_field_start = 280;
+ decoded_video_format->interlaced = true;
+ return true;
+ }
+
+ // PAL (576i50, I suppose). A special case, see below.
+ if (video_format == 0xe909 || video_format == 0xe9c9 || video_format == 0xe809 || video_format == 0xebe9 || video_format == 0xebe1) {
+ decoded_video_format->width = 720;
+ decoded_video_format->height = 576;
+ decoded_video_format->extra_lines_top = 22;
+ decoded_video_format->extra_lines_bottom = 27;
+ decoded_video_format->frame_rate_nom = 25;
+ decoded_video_format->frame_rate_den = 1;
+ decoded_video_format->second_field_start = 335;
+ decoded_video_format->interlaced = true;
+ return true;
+ }
+
+ // 0x8 seems to be a flag about availability of deep color on the input,
+ // except when it's not (e.g. it's the only difference between NTSC
+ // and PAL). Rather confusing. But we clear it here nevertheless, because
+ // usually it doesn't mean anything.
+ //
+ // 0x4 is a flag I've only seen from the D4. I don't know what it is.
+ uint16_t normalized_video_format = video_format & ~0xe80c;
+ constexpr VideoFormatEntry entries[] = {
+ { 0x01f1, 720, 480, 0, 40, 5, 60000, 1001, false }, // 480p59.94 (believed).
+ { 0x0131, 720, 576, 0, 44, 5, 50, 1, false }, // 576p50.
+ { 0x0011, 720, 576, 0, 44, 5, 50, 1, false }, // 576p50 (5:4).
+ { 0x0143, 1280, 720, 0, 25, 5, 50, 1, false }, // 720p50.
+ { 0x0103, 1280, 720, 0, 25, 5, 60, 1, false }, // 720p60.
+ { 0x0125, 1280, 720, 0, 25, 5, 60, 1, false }, // 720p60.
+ { 0x0121, 1280, 720, 0, 25, 5, 60000, 1001, false }, // 720p59.94.
+ { 0x01c3, 1920, 1080, 0, 0, 0, 30, 1, false }, // 1080p30.
+ { 0x0003, 1920, 1080, 583, 20, 25, 30, 1, true }, // 1080i60.
+ { 0x01e1, 1920, 1080, 0, 0, 0, 30000, 1001, false }, // 1080p29.97.
+ { 0x0021, 1920, 1080, 583, 20, 25, 30000, 1001, true }, // 1080i59.94.
+ { 0x0063, 1920, 1080, 0, 0, 0, 25, 1, false }, // 1080p25.
+ { 0x0043, 1920, 1080, 0, 0, 0, 25, 1, true }, // 1080p50.
+ { 0x008e, 1920, 1080, 0, 0, 0, 24, 1, false }, // 1080p24.
+ { 0x00a1, 1920, 1080, 0, 0, 0, 24000, 1001, false }, // 1080p23.98.
+ };
+ for (const VideoFormatEntry &entry : entries) {
+ if (normalized_video_format == entry.normalized_video_format) {
+ decoded_video_format->width = entry.width;
+ decoded_video_format->height = entry.height;
+ decoded_video_format->second_field_start = entry.second_field_start;
+ decoded_video_format->extra_lines_top = entry.extra_lines_top;
+ decoded_video_format->extra_lines_bottom = entry.extra_lines_bottom;
+ decoded_video_format->frame_rate_nom = entry.frame_rate_nom;
+ decoded_video_format->frame_rate_den = entry.frame_rate_den;
+ decoded_video_format->interlaced = entry.interlaced;
+ return true;
+ }
+ }
+
+ printf("Unknown video format 0x%04x (normalized 0x%04x). Assuming 720p60.\n", video_format, normalized_video_format);
+ decoded_video_format->width = 1280;
+ decoded_video_format->height = 720;
+ decoded_video_format->frame_rate_nom = 60;
+ decoded_video_format->frame_rate_den = 1;
+ return false;
+}
+
} // namespace
FrameAllocator::~FrameAllocator() {}
usb_thread.join();
}
-struct VideoFormatEntry {
- uint16_t normalized_video_format;
- unsigned width, height, second_field_start;
- unsigned extra_lines_top, extra_lines_bottom;
- unsigned frame_rate_nom, frame_rate_den;
- bool interlaced;
-};
-
-bool decode_video_format(uint16_t video_format, VideoFormat *decoded_video_format)
-{
- decoded_video_format->id = video_format;
- decoded_video_format->interlaced = false;
-
- // TODO: Add these for all formats as we find them.
- decoded_video_format->extra_lines_top = decoded_video_format->extra_lines_bottom = decoded_video_format->second_field_start = 0;
-
- if (video_format == 0x0800) {
- // No video signal. These green pseudo-frames seem to come at about 30.13 Hz.
- // It's a strange thing, but what can you do.
- decoded_video_format->width = 720;
- decoded_video_format->height = 525;
- decoded_video_format->extra_lines_top = 0;
- decoded_video_format->extra_lines_bottom = 0;
- decoded_video_format->frame_rate_nom = 3013;
- decoded_video_format->frame_rate_den = 100;
- decoded_video_format->has_signal = false;
- return true;
- }
- if ((video_format & 0xe800) != 0xe800) {
- printf("Video format 0x%04x does not appear to be a video format. Assuming 60 Hz.\n",
- video_format);
- decoded_video_format->width = 0;
- decoded_video_format->height = 0;
- decoded_video_format->extra_lines_top = 0;
- decoded_video_format->extra_lines_bottom = 0;
- decoded_video_format->frame_rate_nom = 60;
- decoded_video_format->frame_rate_den = 1;
- decoded_video_format->has_signal = false;
- return false;
- }
-
- decoded_video_format->has_signal = true;
-
- // NTSC (480i59.94, I suppose). A special case, see below.
- if (video_format == 0xe901 || video_format == 0xe9c1 || video_format == 0xe801) {
- decoded_video_format->width = 720;
- decoded_video_format->height = 480;
- decoded_video_format->extra_lines_top = 17;
- decoded_video_format->extra_lines_bottom = 28;
- decoded_video_format->frame_rate_nom = 30000;
- decoded_video_format->frame_rate_den = 1001;
- decoded_video_format->second_field_start = 280;
- decoded_video_format->interlaced = true;
- return true;
- }
-
- // PAL (576i50, I suppose). A special case, see below.
- if (video_format == 0xe909 || video_format == 0xe9c9 || video_format == 0xe809 || video_format == 0xebe9 || video_format == 0xebe1) {
- decoded_video_format->width = 720;
- decoded_video_format->height = 576;
- decoded_video_format->extra_lines_top = 22;
- decoded_video_format->extra_lines_bottom = 27;
- decoded_video_format->frame_rate_nom = 25;
- decoded_video_format->frame_rate_den = 1;
- decoded_video_format->second_field_start = 335;
- decoded_video_format->interlaced = true;
- return true;
- }
-
- // 0x8 seems to be a flag about availability of deep color on the input,
- // except when it's not (e.g. it's the only difference between NTSC
- // and PAL). Rather confusing. But we clear it here nevertheless, because
- // usually it doesn't mean anything.
- //
- // 0x4 is a flag I've only seen from the D4. I don't know what it is.
- uint16_t normalized_video_format = video_format & ~0xe80c;
- constexpr VideoFormatEntry entries[] = {
- { 0x01f1, 720, 480, 0, 40, 5, 60000, 1001, false }, // 480p59.94 (believed).
- { 0x0131, 720, 576, 0, 44, 5, 50, 1, false }, // 576p50.
- { 0x0011, 720, 576, 0, 44, 5, 50, 1, false }, // 576p50 (5:4).
- { 0x0143, 1280, 720, 0, 25, 5, 50, 1, false }, // 720p50.
- { 0x0103, 1280, 720, 0, 25, 5, 60, 1, false }, // 720p60.
- { 0x0125, 1280, 720, 0, 25, 5, 60, 1, false }, // 720p60.
- { 0x0121, 1280, 720, 0, 25, 5, 60000, 1001, false }, // 720p59.94.
- { 0x01c3, 1920, 1080, 0, 0, 0, 30, 1, false }, // 1080p30.
- { 0x0003, 1920, 1080, 583, 20, 25, 30, 1, true }, // 1080i60.
- { 0x01e1, 1920, 1080, 0, 0, 0, 30000, 1001, false }, // 1080p29.97.
- { 0x0021, 1920, 1080, 583, 20, 25, 30000, 1001, true }, // 1080i59.94.
- { 0x0063, 1920, 1080, 0, 0, 0, 25, 1, false }, // 1080p25.
- { 0x0043, 1920, 1080, 0, 0, 0, 25, 1, true }, // 1080p50.
- { 0x008e, 1920, 1080, 0, 0, 0, 24, 1, false }, // 1080p24.
- { 0x00a1, 1920, 1080, 0, 0, 0, 24000, 1001, false }, // 1080p23.98.
- };
- for (const VideoFormatEntry &entry : entries) {
- if (normalized_video_format == entry.normalized_video_format) {
- decoded_video_format->width = entry.width;
- decoded_video_format->height = entry.height;
- decoded_video_format->second_field_start = entry.second_field_start;
- decoded_video_format->extra_lines_top = entry.extra_lines_top;
- decoded_video_format->extra_lines_bottom = entry.extra_lines_bottom;
- decoded_video_format->frame_rate_nom = entry.frame_rate_nom;
- decoded_video_format->frame_rate_den = entry.frame_rate_den;
- decoded_video_format->interlaced = entry.interlaced;
- return true;
- }
- }
-
- printf("Unknown video format 0x%04x (normalized 0x%04x). Assuming 720p60.\n", video_format, normalized_video_format);
- decoded_video_format->width = 1280;
- decoded_video_format->height = 720;
- decoded_video_format->frame_rate_nom = 60;
- decoded_video_format->frame_rate_den = 1;
- return false;
-}
-
map<uint32_t, VideoMode> BMUSBCapture::get_available_video_modes() const
{
// The USB3 cards autodetect, and seem to have no provision for forcing modes.
projects / bmusb / blobdiff