From 18528f617b46afb7042c6aee37b90f1edb5510e6 Mon Sep 17 00:00:00 2001 From: ben Date: Tue, 8 May 2007 12:20:46 +0000 Subject: support for PVR channel navigation (patch by Sven Gothel ) git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@23262 b3059339-0415-0410-9bf9-f77b7e298cf2 --- stream/stream_pvr.c | 783 ++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 760 insertions(+), 23 deletions(-) (limited to 'stream/stream_pvr.c') diff --git a/stream/stream_pvr.c b/stream/stream_pvr.c index 7b612fe544..19d92917d1 100644 --- a/stream/stream_pvr.c +++ b/stream/stream_pvr.c @@ -40,7 +40,10 @@ #include "help_mp.h" #include "stream.h" -#include "tv.h" +#include "pvr.h" + +#include "frequencies.h" +#include "libavutil/common.h" #define PVR_DEFAULT_DEVICE "/dev/video0" #define PVR_MAX_CONTROLS 10 @@ -68,6 +71,8 @@ #define PVR_VIDEO_STREAM_TYPE_VCD "vcd" #define PVR_VIDEO_STREAM_TYPE_SVCD "svcd" +#define PVR_STATION_NAME_SIZE 256 + /* command line arguments */ int pvr_param_aspect_ratio = 0; int pvr_param_sample_rate = 0; @@ -79,6 +84,21 @@ char *pvr_param_bitrate_mode = NULL; int pvr_param_bitrate_peak = 0; char *pvr_param_stream_type = NULL; +typedef struct station_elem_s { + char name[8]; + int freq; + char station[PVR_STATION_NAME_SIZE]; + int enabled; +} station_elem_t; + +typedef struct stationlist_s { + char name[PVR_STATION_NAME_SIZE]; + station_elem_t *list; + int total; /* total number */ + int used; /* used number */ + int enabled; /* enabled number */ +} stationlist_t; + struct pvr_t { int dev_fd; char *video_dev; @@ -93,7 +113,12 @@ struct pvr_t { int saturation; int width; int height; - char *freq; + int freq; + int chan_idx; + int chan_idx_last; + stationlist_t stationlist; + /* dups the tv_param_channel, or the url's channel param */ + char *param_channel; /* encoder params */ int aspect; @@ -112,7 +137,7 @@ pvr_init (void) { struct pvr_t *pvr = NULL; - pvr = malloc (sizeof (struct pvr_t)); + pvr = calloc (1, sizeof (struct pvr_t)); pvr->dev_fd = -1; pvr->video_dev = strdup (PVR_DEFAULT_DEVICE); @@ -126,7 +151,9 @@ pvr_init (void) pvr->saturation = 0; pvr->width = -1; pvr->height = -1; - pvr->freq = NULL; + pvr->freq = -1; + pvr->chan_idx = -1; + pvr->chan_idx_last = -1; /* set default encoding settings * may be overlapped by user parameters @@ -158,11 +185,602 @@ pvr_uninit (struct pvr_t *pvr) if (pvr->video_dev) free (pvr->video_dev); - if (pvr->freq) - free (pvr->freq); + + if (pvr->stationlist.list) + free (pvr->stationlist.list); + + if (pvr->param_channel) + free (pvr->param_channel); + free (pvr); } +/** + * @brief Copy Constructor for stationlist + * + * @see parse_setup_stationlist + */ +static int +copycreate_stationlist (stationlist_t *stationlist, int num) +{ + int i; + + if (chantab < 0 || !stationlist) + return -1; + + num = FFMAX (num, chanlists[chantab].count); + + if (stationlist->list) + { + free (stationlist->list); + stationlist->list = NULL; + } + + stationlist->total = 0; + stationlist->enabled = 0; + stationlist->used = 0; + stationlist->list = calloc (num, sizeof (station_elem_t)); + + if (!stationlist->list) + { + mp_msg (MSGT_OPEN, MSGL_ERR, + "%s No memory allocated for station list, giving up\n", + LOG_LEVEL_V4L2); + return -1; + } + + /* transport the channel list data to our extented struct */ + stationlist->total = num; + strlcpy (stationlist->name, chanlists[chantab].name, PVR_STATION_NAME_SIZE); + + for (i = 0; i < chanlists[chantab].count; i++) + { + stationlist->list[i].station[0]= '\0'; /* no station name yet */ + strlcpy (stationlist->list[i].name, + chanlists[chantab].list[i].name, PVR_STATION_NAME_SIZE); + stationlist->list[i].freq = chanlists[chantab].list[i].freq; + stationlist->list[i].enabled = 1; /* default enabled */ + stationlist->enabled++; + stationlist->used++; + } + + return 0; +} + +static int +print_all_stations (struct pvr_t *pvr) +{ + int i; + + if (!pvr || !pvr->stationlist.list) + return -1; + + for (i = 0; i < pvr->stationlist.total; i++) + { + mp_msg (MSGT_OPEN, MSGL_V, + "%s %3d: [%c] channel: %8s - freq: %8d - station: %s\n", + LOG_LEVEL_V4L2, i, (pvr->stationlist.list[i].enabled) ? 'X' : ' ', + pvr->stationlist.list[i].name, pvr->stationlist.list[i].freq, + pvr->stationlist.list[i].station); + } + + return 0; +} + +/** + * Disables all stations + * + * @see parse_setup_stationlist + */ +static void +disable_all_stations (struct pvr_t *pvr) +{ + int i; + + for (i = 0; i < pvr->stationlist.total; i++) + pvr->stationlist.list[i].enabled = 0; + pvr->stationlist.enabled = 0; +} + +/** + * Update or add a station + * + * @see parse_setup_stationlist + */ +static int +set_station (struct pvr_t *pvr, const char *station, + const char *channel, int freq) +{ + int i; + + if (!pvr || !pvr->stationlist.list) + return -1; + + if (0 >= pvr->stationlist.total || (!channel && !freq)) + return -1; + + /* select channel */ + for (i = 0; i < pvr->stationlist.used; i++) + { + if (channel && !strcasecmp (pvr->stationlist.list[i].name, channel)) + break; /* found existing channel entry */ + + if (freq > 0 && pvr->stationlist.list[i].freq == freq) + break; /* found existing frequency entry */ + } + + if (i < pvr->stationlist.used) + { + /** + * found an existing entry, + * which is about to change with the user data. + * it is also enabled .. + */ + if (!pvr->stationlist.list[i].enabled) + { + pvr->stationlist.list[i].enabled = 1; + pvr->stationlist.enabled++; + } + + if (station) + strlcpy (pvr->stationlist.list[i].station, + station, PVR_STATION_NAME_SIZE); + else if (channel) + strlcpy (pvr->stationlist.list[i].station, + channel, PVR_STATION_NAME_SIZE); + else + snprintf (pvr->stationlist.list[i].station, + PVR_STATION_NAME_SIZE, "F %d", freq); + + mp_msg (MSGT_OPEN, MSGL_DBG2, + "%s Set user station channel: %8s - freq: %8d - station: %s\n", + LOG_LEVEL_V4L2, pvr->stationlist.list[i].name, + pvr->stationlist.list[i].freq, + pvr->stationlist.list[i].station); + return 0; + } + + /* from here on, we have to create a new entry, frequency is mandatory */ + if (freq < 0) + { + mp_msg (MSGT_OPEN, MSGL_ERR, + "%s Cannot add new station/channel without frequency\n", + LOG_LEVEL_V4L2); + return -1; + } + + if (pvr->stationlist.total < i) + { + /** + * we have to extend the stationlist about + * an arbitrary size, even though this path is not performance critical + */ + pvr->stationlist.total += 10; + pvr->stationlist.list = + realloc (pvr->stationlist.list, + pvr->stationlist.total * sizeof (station_elem_t)); + + if (!pvr->stationlist.list) + { + mp_msg (MSGT_OPEN, MSGL_ERR, + "%s No memory allocated for station list, giving up\n", + LOG_LEVEL_V4L2); + return -1; + } + + /* clear the new space ..*/ + memset (&(pvr->stationlist.list[pvr->stationlist.used]), 0, + (pvr->stationlist.total - pvr->stationlist.used) + * sizeof (station_elem_t)); + } + + /* here we go, our actual new entry */ + pvr->stationlist.used++; + pvr->stationlist.list[i].enabled = 1; + pvr->stationlist.enabled++; + + if (station) + strlcpy (pvr->stationlist.list[i].station, + station, PVR_STATION_NAME_SIZE); + if (channel) + strlcpy (pvr->stationlist.list[i].name, channel, PVR_STATION_NAME_SIZE); + else + snprintf (pvr->stationlist.list[i].name, + PVR_STATION_NAME_SIZE, "F %d", freq); + + pvr->stationlist.list[i].freq = freq; + + mp_msg (MSGT_OPEN, MSGL_DBG2, + "%s Add user station channel: %8s - freq: %8d - station: %s\n", + LOG_LEVEL_V4L2, pvr->stationlist.list[i].name, + pvr->stationlist.list[i].freq, + pvr->stationlist.list[i].station); + + return 0; +} + +/** + * Here we set our stationlist, as follow + * - choose the frequency channel table, e.g. ntsc-cable + * - create our stationlist, same element size as the channellist + * - copy the channellist content to our stationlist + * - IF the user provides his channel-mapping, THEN: + * - disable all stations + * - update and/or create entries in the stationlist and enable them + */ +static int +parse_setup_stationlist (struct pvr_t *pvr) +{ + int i; + + if (!pvr) + return -1; + + /* Create our station/channel list */ + if (tv_param_chanlist) + { + /* select channel list */ + for (i = 0; chanlists[i].name != NULL; i++) + { + if (!strcasecmp (chanlists[i].name, tv_param_chanlist)) + { + chantab = i; + break; + } + } + if (!chanlists[i].name) + { + mp_msg (MSGT_OPEN, MSGL_ERR, + "%s unable to find channel list %s, using default %s\n", + LOG_LEVEL_V4L2, tv_param_chanlist, chanlists[chantab].name); + } + else + { + mp_msg (MSGT_OPEN, MSGL_INFO, + "%s select channel list %s, entries %d\n", LOG_LEVEL_V4L2, + chanlists[chantab].name, chanlists[chantab].count); + } + } + + if (0 > chantab) + { + mp_msg (MSGT_OPEN, MSGL_FATAL, + "%s No channel list selected, giving up\n", LOG_LEVEL_V4L2); + return -1; + } + + if (copycreate_stationlist (&(pvr->stationlist), -1) < 0) + { + mp_msg (MSGT_OPEN, MSGL_FATAL, + "%s No memory allocated for station list, giving up\n", + LOG_LEVEL_V4L2); + return -1; + } + + /* Handle user channel mappings */ + if (tv_param_channels) + { + char channel[PVR_STATION_NAME_SIZE]; + char station[PVR_STATION_NAME_SIZE]; + char **channels = tv_param_channels; + + disable_all_stations (pvr); + + while (*channels) + { + char *tmp = *(channels++); + char *sep = strchr (tmp, '-'); + int freq=-1; + + if (!sep) + continue; /* Wrong syntax, but mplayer should not crash */ + + strlcpy (station, sep + 1, PVR_STATION_NAME_SIZE); + + sep[0] = '\0'; + strlcpy (channel, tmp, PVR_STATION_NAME_SIZE); + + while ((sep = strchr (station, '_'))) + sep[0] = ' '; + + /* if channel number is a number and larger than 1000 treat it as + * frequency tmp still contain pointer to null-terminated string with + * channel number here + */ + if ((freq = atoi (channel)) <= 1000) + freq = -1; + + if (set_station (pvr, station, (freq <= 0) ? channel : NULL, freq) < 0) + { + mp_msg (MSGT_OPEN, MSGL_ERR, + "%s Unable to set user station channel: %8s - freq: %8d - station: %s\n", LOG_LEVEL_V4L2, + channel, freq, station); + } + } + } + + return print_all_stations (pvr); +} + +static int +get_v4l2_freq (struct pvr_t *pvr) +{ + int freq; + struct v4l2_frequency vf; + struct v4l2_tuner vt; + + if (!pvr) + return -1; + + if (pvr->dev_fd < 0) + return -1; + + memset (&vt, 0, sizeof (vt)); + memset (&vf, 0, sizeof (vf)); + + if (ioctl (pvr->dev_fd, VIDIOC_G_TUNER, &vt) < 0) + { + mp_msg (MSGT_OPEN, MSGL_ERR, "%s can't set tuner (%s).\n", + LOG_LEVEL_V4L2, strerror (errno)); + return -1; + } + + if (ioctl (pvr->dev_fd, VIDIOC_G_FREQUENCY, &vf) < 0) + { + mp_msg (MSGT_OPEN, MSGL_ERR, "%s can't get frequency %d.\n", + LOG_LEVEL_V4L2, errno); + return -1; + } + freq = vf.frequency; + if (!(vt.capability & V4L2_TUNER_CAP_LOW)) + freq *= 1000; + freq /= 16; + + return freq; +} + +static int +set_v4l2_freq (struct pvr_t *pvr) +{ + struct v4l2_frequency vf; + struct v4l2_tuner vt; + + if (!pvr) + return -1; + + if (0 >= pvr->freq) + { + mp_msg (MSGT_OPEN, MSGL_ERR, + "%s Frequency invalid %d !!!\n", LOG_LEVEL_V4L2, pvr->freq); + return -1; + } + + /* don't set the frequency, if it's already set. + * setting it here would interrupt the stream. + */ + if (get_v4l2_freq (pvr) == pvr->freq) + { + mp_msg (MSGT_OPEN, MSGL_STATUS, + "%s Frequency %d already set.\n", LOG_LEVEL_V4L2, pvr->freq); + return 0; + } + + if (pvr->dev_fd < 0) + return -1; + + memset (&vf, 0, sizeof (vf)); + memset (&vt, 0, sizeof (vt)); + + if (ioctl (pvr->dev_fd, VIDIOC_G_TUNER, &vt) < 0) + { + mp_msg (MSGT_OPEN, MSGL_ERR, "%s can't get tuner (%s).\n", + LOG_LEVEL_V4L2, strerror (errno)); + return -1; + } + + vf.type = vt.type; + vf.frequency = pvr->freq * 16; + + if (!(vt.capability & V4L2_TUNER_CAP_LOW)) + vf.frequency /= 1000; + + if (ioctl (pvr->dev_fd, VIDIOC_S_FREQUENCY, &vf) < 0) + { + mp_msg (MSGT_OPEN, MSGL_ERR, "%s can't set frequency (%s).\n", + LOG_LEVEL_V4L2, strerror (errno)); + return -1; + } + + memset (&vt, 0, sizeof(vt)); + if (ioctl (pvr->dev_fd, VIDIOC_G_TUNER, &vt) < 0) + { + mp_msg (MSGT_OPEN, MSGL_ERR, "%s can't set tuner (%s).\n", + LOG_LEVEL_V4L2, strerror (errno)); + return -1; + } + + /* just a notification */ + if (!vt.signal) + mp_msg (MSGT_OPEN, MSGL_ERR, "%s NO SIGNAL at frequency %d (%d)\n", + LOG_LEVEL_V4L2, pvr->freq, vf.frequency); + else + mp_msg (MSGT_OPEN, MSGL_STATUS, "%s Got signal at frequency %d (%d)\n", + LOG_LEVEL_V4L2, pvr->freq, vf.frequency); + + return 0; +} + +static int +set_station_by_step (struct pvr_t *pvr, int step, int v4lAction) +{ + if (!pvr || !pvr->stationlist.list) + return -1; + + if (pvr->stationlist.enabled >= abs (step)) + { + int gotcha = 0; + int chidx = pvr->chan_idx + step; + + while (!gotcha) + { + chidx = (chidx + pvr->stationlist.used) % pvr->stationlist.used; + + mp_msg (MSGT_OPEN, MSGL_DBG2, + "%s Offset switch: current %d, enabled %d, step %d -> %d\n", + LOG_LEVEL_V4L2, pvr->chan_idx, + pvr->stationlist.enabled, step, chidx); + + if (!pvr->stationlist.list[chidx].enabled) + { + mp_msg (MSGT_OPEN, MSGL_DBG2, + "%s Switch disabled to user station channel: %8s - freq: %8d - station: %s\n", LOG_LEVEL_V4L2, + pvr->stationlist.list[chidx].name, + pvr->stationlist.list[chidx].freq, + pvr->stationlist.list[chidx].station); + chidx += FFSIGN (step); + } + else + gotcha = 1; + } + + pvr->freq = pvr->stationlist.list[chidx].freq; + pvr->chan_idx_last = pvr->chan_idx; + pvr->chan_idx = chidx; + + mp_msg (MSGT_OPEN, MSGL_INFO, + "%s Switch to user station channel: %8s - freq: %8d - station: %s\n", LOG_LEVEL_V4L2, + pvr->stationlist.list[chidx].name, + pvr->stationlist.list[chidx].freq, + pvr->stationlist.list[chidx].station); + + if (v4lAction) + return set_v4l2_freq (pvr); + + return (pvr->freq > 0) ? 0 : -1; + } + + mp_msg (MSGT_OPEN, MSGL_ERR, + "%s Ooops couldn't set freq by channel entry step %d to current %d, enabled %d\n", LOG_LEVEL_V4L2, + step, pvr->chan_idx, pvr->stationlist.enabled); + + return -1; +} + +static int +set_station_by_channelname_or_freq (struct pvr_t *pvr, const char *channel, + int freq, int v4lAction) +{ + int i = 0; + + if (!pvr || !pvr->stationlist.list) + return -1; + + if (0 >= pvr->stationlist.enabled) + { + mp_msg (MSGT_OPEN, MSGL_WARN, + "%s No enabled station, cannot switch channel/frequency\n", + LOG_LEVEL_V4L2); + return -1; + } + + if (channel) + { + /* select by channel */ + for (i = 0; i < pvr->stationlist.used ; i++) + { + if (!strcasecmp (pvr->stationlist.list[i].name, channel)) + { + if (!pvr->stationlist.list[i].enabled) + { + mp_msg (MSGT_OPEN, MSGL_WARN, + "%s Switch disabled to user station channel: %8s - freq: %8d - station: %s\n", LOG_LEVEL_V4L2, + pvr->stationlist.list[i].name, + pvr->stationlist.list[i].freq, + pvr->stationlist.list[i].station); + + return -1; + } + + pvr->freq = pvr->stationlist.list[i].freq; + pvr->chan_idx_last = pvr->chan_idx; + pvr->chan_idx = i; + break; + } + } + } + else if (freq >= 0) + { + /* select by freq */ + for (i = 0; i < pvr->stationlist.used; i++) + { + if (pvr->stationlist.list[i].freq == freq) + { + if (!pvr->stationlist.list[i].enabled) + { + mp_msg (MSGT_OPEN, MSGL_WARN, + "%s Switch disabled to user station channel: %8s - freq: %8d - station: %s\n", LOG_LEVEL_V4L2, + pvr->stationlist.list[i].name, + pvr->stationlist.list[i].freq, + pvr->stationlist.list[i].station); + + return -1; + } + + pvr->freq = pvr->stationlist.list[i].freq; + pvr->chan_idx_last = pvr->chan_idx; + pvr->chan_idx = i; + break; + } + } + } + + if (i >= pvr->stationlist.used) + { + if (channel) + mp_msg (MSGT_OPEN, MSGL_WARN, + "%s unable to find channel %s\n", LOG_LEVEL_V4L2, channel); + else + mp_msg (MSGT_OPEN, MSGL_WARN, + "%s unable to find frequency %d\n", LOG_LEVEL_V4L2, freq); + return -1; + } + + mp_msg (MSGT_OPEN, MSGL_INFO, + "%s Switch to user station channel: %8s - freq: %8d - station: %s\n", LOG_LEVEL_V4L2, + pvr->stationlist.list[i].name, + pvr->stationlist.list[i].freq, + pvr->stationlist.list[i].station); + + if (v4lAction) + return set_v4l2_freq (pvr); + + return (pvr->freq > 0) ? 0 : -1; +} + +static int +force_freq_step (struct pvr_t *pvr, int step) +{ + int freq; + + if (!pvr) + return -1; + + freq = pvr->freq+step; + + if (freq) + { + mp_msg (MSGT_OPEN, MSGL_INFO, + "%s Force Frequency %d + %d = %d \n", LOG_LEVEL_V4L2, + pvr->freq, step, freq); + + pvr->freq = freq; + + return set_v4l2_freq (pvr); + } + + return -1; +} + static void parse_encoder_options (struct pvr_t *pvr) { @@ -494,6 +1112,37 @@ parse_v4l2_tv_options (struct pvr_t *pvr) { if (!pvr) return; + + /* Create our station/channel list */ + parse_setup_stationlist (pvr); + + if (pvr->param_channel) + { + if (set_station_by_channelname_or_freq (pvr, pvr->param_channel, + -1, 0) >= 0) + { + if (tv_param_freq) + { + mp_msg (MSGT_OPEN, MSGL_HINT, + "%s tv param freq %s is overwritten by channel setting freq %d\n", LOG_LEVEL_V4L2, + tv_param_freq, pvr->freq); + } + } + } + + if (pvr->freq < 0 && tv_param_freq) + { + mp_msg (MSGT_OPEN, MSGL_HINT, "%s tv param freq %s is used directly\n", + LOG_LEVEL_V4L2, tv_param_freq); + + if (set_station_by_channelname_or_freq (pvr, NULL, + atoi (tv_param_freq), 0)<0) + { + mp_msg (MSGT_OPEN, MSGL_WARN, + "%s tv param freq %s invalid to set station\n", + LOG_LEVEL_V4L2, tv_param_freq); + } + } if (tv_param_device) { @@ -528,9 +1177,6 @@ parse_v4l2_tv_options (struct pvr_t *pvr) if (tv_param_height) pvr->height = tv_param_height; - - if (tv_param_freq) - pvr->freq = strdup (tv_param_freq); } static int @@ -692,24 +1338,20 @@ set_v4l2_settings (struct pvr_t *pvr) } } - /* -tv freq=x */ - if (pvr->freq) + if (pvr->freq < 0) { - struct v4l2_frequency vf; - vf.tuner = 0; - vf.type = 0; - vf.frequency = strtol (pvr->freq, 0L, 0); + int freq = get_v4l2_freq (pvr); mp_msg (MSGT_OPEN, MSGL_INFO, - "%s setting frequency to %d\n", LOG_LEVEL_V4L2, vf.frequency); - - if (ioctl (pvr->dev_fd, VIDIOC_S_FREQUENCY, &vf) < 0) - { - mp_msg (MSGT_OPEN, MSGL_ERR, "%s can't set frequency (%s).\n", - LOG_LEVEL_V4L2, strerror (errno)); - return -1; - } + "%s Using current set frequency %d, to set channel\n", + LOG_LEVEL_V4L2, freq); + + if (0 < freq) + return set_station_by_channelname_or_freq (pvr, NULL, freq, 1); } + if (0 < pvr->freq) + return set_v4l2_freq (pvr) ; + return 0; } @@ -933,6 +1575,15 @@ pvr_stream_open (stream_t *stream, int mode, void *opts, int *file_format) pvr = pvr_init (); + /** + * if the url, i.e. 'pvr://8', contains the channel, use it, + * else use the tv parameter. + */ + if (stream->url && strlen (stream->url) > 6 && stream->url[6] != '\0') + pvr->param_channel = strdup (stream->url + 6); + else if (tv_param_channel && strlen (tv_param_channel)) + pvr->param_channel = strdup (tv_param_channel); + parse_v4l2_tv_options (pvr); parse_encoder_options (pvr); @@ -1027,6 +1678,92 @@ pvr_stream_open (stream_t *stream, int mode, void *opts, int *file_format) return STREAM_OK; } +/* PVR Public API access */ + +const char * +pvr_get_current_stationname (stream_t *stream) +{ + struct pvr_t *pvr; + + if (!stream || stream->type != STREAMTYPE_PVR) + return NULL; + + pvr = (struct pvr_t *) stream->priv; + + if (pvr->stationlist.list && + pvr->stationlist.used > pvr->chan_idx && + pvr->chan_idx >= 0) + return pvr->stationlist.list[pvr->chan_idx].station; + + return NULL; +} + +const char * +pvr_get_current_channelname (stream_t *stream) +{ + struct pvr_t *pvr = (struct pvr_t *) stream->priv; + + if (pvr->stationlist.list && + pvr->stationlist.used > pvr->chan_idx && + pvr->chan_idx >= 0) + return pvr->stationlist.list[pvr->chan_idx].name; + + return NULL; +} + +int +pvr_get_current_frequency (stream_t *stream) +{ + struct pvr_t *pvr = (struct pvr_t *) stream->priv; + + return pvr->freq; +} + +int +pvr_set_channel (stream_t *stream, const char * channel) +{ + struct pvr_t *pvr = (struct pvr_t *) stream->priv; + + return set_station_by_channelname_or_freq (pvr, channel, -1, 1); +} + +int +pvr_set_lastchannel (stream_t *stream) +{ + struct pvr_t *pvr = (struct pvr_t *) stream->priv; + + if (pvr->stationlist.list && + pvr->stationlist.used > pvr->chan_idx_last && + pvr->chan_idx_last >= 0) + return set_station_by_channelname_or_freq (pvr, pvr->stationlist.list[pvr->chan_idx_last].name, -1, 1); + + return -1; +} + +int +pvr_set_freq (stream_t *stream, int freq) +{ + struct pvr_t *pvr = (struct pvr_t *) stream->priv; + + return set_station_by_channelname_or_freq (pvr, NULL, freq, 1); +} + +int +pvr_set_channel_step (stream_t *stream, int step) +{ + struct pvr_t *pvr = (struct pvr_t *) stream->priv; + + return set_station_by_step (pvr, step, 1); +} + +int +pvr_force_freq_step (stream_t *stream, int step) +{ + struct pvr_t *pvr = (struct pvr_t *) stream->priv; + + return force_freq_step (pvr, step); +} + stream_info_t stream_info_pvr = { "V4L2 MPEG Input (a.k.a PVR)", "pvr", -- cgit v1.2.3