diff options
Diffstat (limited to 'src/class/video/video_device.c')
| -rw-r--r-- | src/class/video/video_device.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/src/class/video/video_device.c b/src/class/video/video_device.c index 85e85e75e..b2375def9 100644 --- a/src/class/video/video_device.c +++ b/src/class/video/video_device.c @@ -214,6 +214,12 @@ TU_ATTR_WEAK int tud_video_commit_cb(uint_fast8_t ctl_idx, uint_fast8_t stm_idx, return VIDEO_ERROR_NONE; } +TU_ATTR_WEAK void tud_video_prepare_payload_cb(uint_fast8_t ctl_idx, uint_fast8_t stm_idx, tud_video_payload_request_t* request) { + (void) ctl_idx; + (void) stm_idx; + (void) request; +} + //--------------------------------------------------------------------+ // //--------------------------------------------------------------------+ @@ -874,7 +880,16 @@ static uint_fast16_t _prepare_in_payload(videod_streaming_interface_t *stm, uint } TU_ASSERT(pkt_len >= hdr_len); uint_fast16_t data_len = pkt_len - hdr_len; - memcpy(&ep_buf[hdr_len], stm->buffer + stm->offset, data_len); + if (stm->buffer) { + memcpy(&ep_buf[hdr_len], stm->buffer + stm->offset, data_len); + } else { + tud_video_payload_request_t rqst = { + .buf = &ep_buf[hdr_len], + .length = data_len, + .offset = stm->offset + }; + tud_video_prepare_payload_cb(stm->index_vc, stm->index_vs, &rqst); + } stm->offset += data_len; remaining -= data_len; if (!remaining) { @@ -1255,13 +1270,14 @@ bool tud_video_n_frame_xfer(uint_fast8_t ctl_idx, uint_fast8_t stm_idx, void *bu TU_ASSERT(ctl_idx < CFG_TUD_VIDEO); TU_ASSERT(stm_idx < CFG_TUD_VIDEO_STREAMING); - if (NULL == buffer || 0 == bufsize) { + if (0 == bufsize) { return false; } + videod_streaming_interface_t *stm = _get_instance_streaming(ctl_idx, stm_idx); videod_streaming_epbuf_t *stm_epbuf = &_videod_streaming_epbuf[ctl_idx]; - if (NULL == stm || 0 == stm->desc.ep[0] || stm->buffer) { + if (NULL == stm || 0 == stm->desc.ep[0] || stm->bufsize) { return false; } if (stm->state == VS_STATE_PROBING) { |