diff options
Diffstat (limited to 'dvbdevice.c')
| -rw-r--r-- | dvbdevice.c | 46 |
1 files changed, 42 insertions, 4 deletions
diff --git a/dvbdevice.c b/dvbdevice.c index fe6c951..19be022 100644 --- a/dvbdevice.c +++ b/dvbdevice.c @@ -4,7 +4,7 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: dvbdevice.c 1.62 2003/08/24 14:23:12 kls Exp $ + * $Id: dvbdevice.c 1.63 2003/08/30 11:40:41 kls Exp $ */ #include "dvbdevice.h" @@ -896,11 +896,49 @@ void cDvbDevice::StillPicture(const uchar *Data, int Length) If anybody ever finds out what could be changed so that VIDEO_STILLPICTURE could be used, please let me know! kls 2002-03-23 + 2003-08-30: apparently the driver can't handle PES data, so Oliver Endriss + <o.endriss@gmx.de> has changed this to strip all PES headers + and send pure ES data to the driver. Seems to work just fine! + Let's drop the VIDEO_STILLPICTURE_WORKS_WITH_VDR_FRAMES stuff + once this has proven to work in all cases. */ -//#define VIDEO_STILLPICTURE_WORKS_WITH_VDR_FRAMES +#define VIDEO_STILLPICTURE_WORKS_WITH_VDR_FRAMES #ifdef VIDEO_STILLPICTURE_WORKS_WITH_VDR_FRAMES - video_still_picture sp = { (char *)Data, Length }; - CHECK(ioctl(fd_video, VIDEO_STILLPICTURE, &sp)); + if (Data[0] == 0x00 && Data[1] == 0x00 && Data[2] == 0x01 && (Data[3] & 0xF0) == 0xE0) { + // PES data + char *buf = MALLOC(char, Length); + if (!buf) + return; + int i = 0; + int blen = 0; + while (i < Length - 4) { + if (Data[i] == 0x00 && Data[i + 1] == 0x00 && Data[i + 2] == 0x01 && (Data[i + 3] & 0xF0) == 0xE0) { + // skip PES header + int offs = i + 6; + int len = Data[i + 4] * 256 + Data[i + 5]; + // skip header extension + if ((Data[i + 6] & 0xC0) == 0x80) { + offs += 3; + offs += Data[i + 8]; + len -= 3; + len -= Data[i + 8]; + } + memcpy(&buf[blen], &Data[offs], len); + i = offs + len; + blen += len; + } + else + i++; + } + video_still_picture sp = { buf, blen }; + CHECK(ioctl(fd_video, VIDEO_STILLPICTURE, &sp)); + free(buf); + } + else { + // non-PES data + video_still_picture sp = { (char *)Data, Length }; + CHECK(ioctl(fd_video, VIDEO_STILLPICTURE, &sp)); + } #else #define MIN_IFRAME 400000 for (int i = MIN_IFRAME / Length + 1; i > 0; i--) { |