diff options
Diffstat (limited to 'drivers/media/video/ivtv/ivtv-driver.h')
| -rw-r--r-- | drivers/media/video/ivtv/ivtv-driver.h | 67 |
1 files changed, 40 insertions, 27 deletions
diff --git a/drivers/media/video/ivtv/ivtv-driver.h b/drivers/media/video/ivtv/ivtv-driver.h index 748ef66bd945..5400ccef4dfb 100644 --- a/drivers/media/video/ivtv/ivtv-driver.h +++ b/drivers/media/video/ivtv/ivtv-driver.h @@ -499,7 +499,8 @@ struct vbi_vps { }; struct vbi_info { - /* VBI general fixed card data */ + /* VBI general data, does not change during streaming */ + u32 raw_decoder_line_size; /* raw VBI line size from digitizer */ u8 raw_decoder_sav_odd_field; /* raw VBI Start Active Video digitizer code of odd field */ u8 raw_decoder_sav_even_field; /* raw VBI Start Active Video digitizer code of even field */ @@ -507,27 +508,42 @@ struct vbi_info { u8 sliced_decoder_sav_odd_field; /* sliced VBI Start Active Video digitizer code of odd field */ u8 sliced_decoder_sav_even_field; /* sliced VBI Start Active Video digitizer code of even field */ - u32 dec_start; - u32 enc_start, enc_size; - int fpi; - u32 frame; - struct vbi_cc cc_payload[256]; /* Sliced VBI CC payload array. It is an array to + u32 start[2]; /* start of first VBI line in the odd/even fields */ + u32 count; /* number of VBI lines per field */ + u32 raw_size; /* size of raw VBI line from the digitizer */ + u32 sliced_size; /* size of sliced VBI line from the digitizer */ + + u32 dec_start; /* start in decoder memory of VBI re-insertion buffers */ + u32 enc_start; /* start in encoder memory of VBI capture buffers */ + u32 enc_size; /* size of VBI capture area */ + int fpi; /* number of VBI frames per interrupt */ + + struct v4l2_format in; /* current VBI capture format */ + struct v4l2_sliced_vbi_format *sliced_in; /* convenience pointer to sliced struct in vbi.in union */ + int insert_mpeg; /* if non-zero, then embed VBI data in MPEG stream */ + + /* Raw VBI compatibility hack */ + + u32 frame; /* frame counter hack needed for backwards compatibility + of old VBI software */ + + /* Sliced VBI output data */ + + struct vbi_cc cc_payload[256]; /* sliced VBI CC payload array: it is an array to prevent dropping CC data if they couldn't be - processed fast enough. */ - int cc_payload_idx; /* Index in cc_payload */ - u8 cc_missing_cnt; /* Counts number of frames without CC for passthrough mode */ - int wss_payload; /* Sliced VBI WSS payload */ - u8 wss_missing_cnt; /* Counts number of frames without WSS for passthrough mode */ - struct vbi_vps vps_payload; /* Sliced VBI VPS payload */ - struct v4l2_format in; - /* convenience pointer to sliced struct in vbi_in union */ - struct v4l2_sliced_vbi_format *sliced_in; - int insert_mpeg; - - /* Buffer for the maximum of 2 * 18 * packet_size sliced VBI lines. - One for /dev/vbi0 and one for /dev/vbi8 */ - struct v4l2_sliced_vbi_data sliced_data[36]; - struct v4l2_sliced_vbi_data sliced_dec_data[36]; + processed fast enough */ + int cc_payload_idx; /* index in cc_payload */ + u8 cc_missing_cnt; /* counts number of frames without CC for passthrough mode */ + int wss_payload; /* sliced VBI WSS payload */ + u8 wss_missing_cnt; /* counts number of frames without WSS for passthrough mode */ + struct vbi_vps vps_payload; /* sliced VBI VPS payload */ + + /* Sliced VBI capture data */ + + struct v4l2_sliced_vbi_data sliced_data[36]; /* sliced VBI storage for VBI encoder stream */ + struct v4l2_sliced_vbi_data sliced_dec_data[36];/* sliced VBI storage for VBI decoder stream */ + + /* VBI Embedding data */ /* Buffer for VBI data inserted into MPEG stream. The first byte is a dummy byte that's never used. @@ -544,12 +560,9 @@ struct vbi_info { This pointer array will allocate 2049 bytes to store each VBI frame. */ u8 *sliced_mpeg_data[IVTV_VBI_FRAMES]; u32 sliced_mpeg_size[IVTV_VBI_FRAMES]; - struct ivtv_buffer sliced_mpeg_buf; - u32 inserted_frame; - - u32 start[2], count; - u32 raw_size; - u32 sliced_size; + struct ivtv_buffer sliced_mpeg_buf; /* temporary buffer holding data from sliced_mpeg_data */ + u32 inserted_frame; /* index in sliced_mpeg_size of next sliced data + to be inserted in the MPEG stream */ }; /* forward declaration of struct defined in ivtv-cards.h */ |