diff options
Diffstat (limited to 'linux/drivers/media/video/ivtv/ivtv-fileops.c')
| -rw-r--r-- | linux/drivers/media/video/ivtv/ivtv-fileops.c | 53 |
1 files changed, 31 insertions, 22 deletions
diff --git a/linux/drivers/media/video/ivtv/ivtv-fileops.c b/linux/drivers/media/video/ivtv/ivtv-fileops.c index 109c8c6c9..5b5d6666f 100644 --- a/linux/drivers/media/video/ivtv/ivtv-fileops.c +++ b/linux/drivers/media/video/ivtv/ivtv-fileops.c @@ -27,10 +27,9 @@ #include "ivtv-irq.h" #include "ivtv-vbi.h" #include "ivtv-mailbox.h" -#include "ivtv-audio.h" +#include "ivtv-routing.h" #include "ivtv-streams.h" #include "ivtv-yuv.h" -#include "ivtv-controls.h" #include "ivtv-ioctl.h" #include "ivtv-cards.h" #include <media/saa7115.h> @@ -190,7 +189,9 @@ static void ivtv_update_pgm_info(struct ivtv *itv) int idx = (itv->pgm_info_write_idx + i) % itv->pgm_info_num; struct v4l2_enc_idx_entry *e = itv->pgm_info + idx; u32 addr = itv->pgm_info_offset + 4 + idx * 24; - const int mapping[] = { V4L2_ENC_IDX_FRAME_P, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_B, 0 }; + const int mapping[8] = { -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P, -1, + V4L2_ENC_IDX_FRAME_B, -1, -1, -1 }; + // 1=I, 2=P, 4=B e->offset = read_enc(addr + 4) + ((u64)read_enc(addr + 8) << 32); if (e->offset > itv->mpg_data_received) { @@ -199,7 +200,7 @@ static void ivtv_update_pgm_info(struct ivtv *itv) e->offset += itv->vbi_data_inserted; e->length = read_enc(addr); e->pts = read_enc(addr + 16) + ((u64)(read_enc(addr + 20) & 1) << 32); - e->flags = mapping[read_enc(addr + 12) & 3]; + e->flags = mapping[read_enc(addr + 12) & 7]; i++; } itv->pgm_info_write_idx = (itv->pgm_info_write_idx + i) % itv->pgm_info_num; @@ -257,19 +258,19 @@ static struct ivtv_buffer *ivtv_get_buffer(struct ivtv_stream *s, int non_block, } return buf; } - /* return if file was opened with O_NONBLOCK */ - if (non_block) { - *err = -EAGAIN; - return NULL; - } /* return if end of stream */ if (s->type != IVTV_DEC_STREAM_TYPE_VBI && !test_bit(IVTV_F_S_STREAMING, &s->s_flags)) { - clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags); IVTV_DEBUG_INFO("EOS %s\n", s->name); return NULL; } + /* return if file was opened with O_NONBLOCK */ + if (non_block) { + *err = -EAGAIN; + return NULL; + } + /* wait for more data to arrive */ prepare_to_wait(&s->waitq, &wait, TASK_INTERRUPTIBLE); /* New buffers might have become available before we were added to the waitqueue */ @@ -377,10 +378,20 @@ static ssize_t ivtv_read(struct ivtv_stream *s, char __user *ubuf, size_t tot_co int rc; buf = ivtv_get_buffer(s, non_block, &rc); - if (buf == NULL && rc == -EAGAIN && tot_written) - break; - if (buf == NULL) + /* if there is no data available... */ + if (buf == NULL) { + /* if we got data, then return that regardless */ + if (tot_written) + break; + /* EOS condition */ + if (rc == 0) { + clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags); + clear_bit(IVTV_F_S_APPL_IO, &s->s_flags); + ivtv_release_stream(s); + } + /* set errno */ return rc; + } rc = ivtv_copy_buf_to_user(s, buf, ubuf + tot_written, tot_count - tot_written); if (buf != &itv->vbi.sliced_mpeg_buf) { ivtv_enqueue(s, buf, (buf->readpos == buf->bytesused) ? &s->q_free : &s->q_io); @@ -737,10 +748,11 @@ void ivtv_stop_capture(struct ivtv_open_id *id, int gop_end) ivtv_stop_v4l2_encode_stream(s, gop_end); } } - clear_bit(IVTV_F_S_APPL_IO, &s->s_flags); - clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags); - - ivtv_release_stream(s); + if (!gop_end) { + clear_bit(IVTV_F_S_APPL_IO, &s->s_flags); + clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags); + ivtv_release_stream(s); + } } static void ivtv_stop_decoding(struct ivtv_open_id *id, int flags, u64 pts) @@ -755,6 +767,7 @@ static void ivtv_stop_decoding(struct ivtv_open_id *id, int flags, u64 pts) IVTV_DEBUG_INFO("close stopping decode\n"); ivtv_stop_v4l2_decode_stream(s, flags, pts); + itv->output_mode = OUT_NONE; } clear_bit(IVTV_F_S_APPL_IO, &s->s_flags); clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags); @@ -762,11 +775,7 @@ static void ivtv_stop_decoding(struct ivtv_open_id *id, int flags, u64 pts) /* Restore registers we've changed & clean up any mess we've made */ ivtv_yuv_close(itv); } - if (s->type == IVTV_DEC_STREAM_TYPE_YUV && itv->output_mode == OUT_YUV) - itv->output_mode = OUT_NONE; - else if (s->type == IVTV_DEC_STREAM_TYPE_YUV && itv->output_mode == OUT_UDMA_YUV) - itv->output_mode = OUT_NONE; - else if (s->type == IVTV_DEC_STREAM_TYPE_MPG && itv->output_mode == OUT_MPG) + if (itv->output_mode == OUT_UDMA_YUV && id->yuv_frames) itv->output_mode = OUT_NONE; itv->speed = 0; |