52 static inline AVRational v4l2_get_timebase(V4L2Buffer *avbuf)  in v4l2_get_timebase()  argument
54     V4L2m2mContext *s = buf_to_m2mctx(avbuf);  in v4l2_get_timebase()
74 static inline int64_t v4l2_get_pts(V4L2Buffer *avbuf)  in v4l2_get_pts()  argument
79     v4l2_pts = (int64_t)avbuf->buf.timestamp.tv_sec * USEC_PER_SEC +  in v4l2_get_pts()
80                         avbuf->buf.timestamp.tv_usec;  in v4l2_get_pts()
82     return av_rescale_q(v4l2_pts, v4l2_timebase, v4l2_get_timebase(avbuf));  in v4l2_get_pts()
215     V4L2Buffer* avbuf = opaque;  in v4l2_free_buffer()  local
216     V4L2m2mContext *s = buf_to_m2mctx(avbuf);  in v4l2_free_buffer()
218     if (atomic_fetch_sub(&avbuf->context_refcount, 1) == 1) {  in v4l2_free_buffer()
225             if (s->draining && V4L2_TYPE_IS_OUTPUT(avbuf->context->type)) {  in v4l2_free_buffer()
227                 avbuf->status = V4L2BUF_AVAILABLE;  in v4l2_free_buffer()
229             else if (avbuf->context->streamon)  in v4l2_free_buffer()
230                 ff_v4l2_buffer_enqueue(avbuf);  in v4l2_free_buffer()
233         av_buffer_unref(&avbuf->context_ref);  in v4l2_free_buffer()
300 static int v4l2_buffer_buf_to_swframe(AVFrame *frame, V4L2Buffer *avbuf)  in v4l2_buffer_buf_to_swframe()  argument
304     frame->format = avbuf->context->av_pix_fmt;  in v4l2_buffer_buf_to_swframe()
306     for (i = 0; i < avbuf->num_planes; i++) {  in v4l2_buffer_buf_to_swframe()
307         ret = v4l2_buf_to_bufref(avbuf, i, &frame->buf[i]);  in v4l2_buffer_buf_to_swframe()
311         frame->linesize[i] = avbuf->plane_info[i].bytesperline;  in v4l2_buffer_buf_to_swframe()
316     switch (avbuf->context->av_pix_fmt) {  in v4l2_buffer_buf_to_swframe()
319         if (avbuf->num_planes > 1)  in v4l2_buffer_buf_to_swframe()
321         frame->linesize[1] = avbuf->plane_info[0].bytesperline;  in v4l2_buffer_buf_to_swframe()
322 …frame->data[1] = frame->buf[0]->data + avbuf->plane_info[0].bytesperline * avbuf->context->format.…  in v4l2_buffer_buf_to_swframe()
326         if (avbuf->num_planes > 1)  in v4l2_buffer_buf_to_swframe()
328         frame->linesize[1] = avbuf->plane_info[0].bytesperline >> 1;  in v4l2_buffer_buf_to_swframe()
329         frame->linesize[2] = avbuf->plane_info[0].bytesperline >> 1;  in v4l2_buffer_buf_to_swframe()
330 …frame->data[1] = frame->buf[0]->data + avbuf->plane_info[0].bytesperline * avbuf->context->format.…  in v4l2_buffer_buf_to_swframe()
331 …frame->data[2] = frame->data[1] + ((avbuf->plane_info[0].bytesperline * avbuf->context->format.fmt…  in v4l2_buffer_buf_to_swframe()
419 int ff_v4l2_buffer_buf_to_avframe(AVFrame *frame, V4L2Buffer *avbuf)  in ff_v4l2_buffer_buf_to_avframe()  argument
426     ret = v4l2_buffer_buf_to_swframe(frame, avbuf);  in ff_v4l2_buffer_buf_to_avframe()
431     frame->key_frame = !!(avbuf->buf.flags & V4L2_BUF_FLAG_KEYFRAME);  in ff_v4l2_buffer_buf_to_avframe()
432     frame->color_primaries = v4l2_get_color_primaries(avbuf);  in ff_v4l2_buffer_buf_to_avframe()
433     frame->colorspace = v4l2_get_color_space(avbuf);  in ff_v4l2_buffer_buf_to_avframe()
434     frame->color_range = v4l2_get_color_range(avbuf);  in ff_v4l2_buffer_buf_to_avframe()
435     frame->color_trc = v4l2_get_color_trc(avbuf);  in ff_v4l2_buffer_buf_to_avframe()
436     frame->pts = v4l2_get_pts(avbuf);  in ff_v4l2_buffer_buf_to_avframe()
440     frame->height = avbuf->context->height;  in ff_v4l2_buffer_buf_to_avframe()
441     frame->width = avbuf->context->width;  in ff_v4l2_buffer_buf_to_avframe()
442     frame->sample_aspect_ratio = avbuf->context->sample_aspect_ratio;  in ff_v4l2_buffer_buf_to_avframe()
445     if (avbuf->buf.flags & V4L2_BUF_FLAG_ERROR) {  in ff_v4l2_buffer_buf_to_avframe()
446         av_log(logger(avbuf), AV_LOG_ERROR, "%s: driver decode error\n", avbuf->context->name);  in ff_v4l2_buffer_buf_to_avframe()
453 int ff_v4l2_buffer_buf_to_avpkt(AVPacket *pkt, V4L2Buffer *avbuf)  in ff_v4l2_buffer_buf_to_avpkt()  argument
458     ret = v4l2_buf_to_bufref(avbuf, 0, &pkt->buf);  in ff_v4l2_buffer_buf_to_avpkt()
462 …pkt->size = V4L2_TYPE_IS_MULTIPLANAR(avbuf->buf.type) ? avbuf->buf.m.planes[0].bytesused : avbuf->…  in ff_v4l2_buffer_buf_to_avpkt()
465     if (avbuf->buf.flags & V4L2_BUF_FLAG_KEYFRAME)  in ff_v4l2_buffer_buf_to_avpkt()
468     if (avbuf->buf.flags & V4L2_BUF_FLAG_ERROR) {  in ff_v4l2_buffer_buf_to_avpkt()
469         av_log(logger(avbuf), AV_LOG_ERROR, "%s driver encode error\n", avbuf->context->name);  in ff_v4l2_buffer_buf_to_avpkt()
473     pkt->dts = pkt->pts = v4l2_get_pts(avbuf);  in ff_v4l2_buffer_buf_to_avpkt()
494 int ff_v4l2_buffer_initialize(V4L2Buffer* avbuf, int index)  in ff_v4l2_buffer_initialize()  argument
496     V4L2Context *ctx = avbuf->context;  in ff_v4l2_buffer_initialize()
499     avbuf->buf.memory = V4L2_MEMORY_MMAP;  in ff_v4l2_buffer_initialize()
500     avbuf->buf.type = ctx->type;  in ff_v4l2_buffer_initialize()
501     avbuf->buf.index = index;  in ff_v4l2_buffer_initialize()
504         avbuf->buf.length = VIDEO_MAX_PLANES;  in ff_v4l2_buffer_initialize()
505         avbuf->buf.m.planes = avbuf->planes;  in ff_v4l2_buffer_initialize()
508     ret = ioctl(buf_to_m2mctx(avbuf)->fd, VIDIOC_QUERYBUF, &avbuf->buf);  in ff_v4l2_buffer_initialize()
513         avbuf->num_planes = 0;  in ff_v4l2_buffer_initialize()
515         for (i = 0; i < avbuf->buf.length; i++) {  in ff_v4l2_buffer_initialize()
516             if (avbuf->buf.m.planes[i].length)  in ff_v4l2_buffer_initialize()
517                 avbuf->num_planes++;  in ff_v4l2_buffer_initialize()
520         avbuf->num_planes = 1;  in ff_v4l2_buffer_initialize()
522     for (i = 0; i < avbuf->num_planes; i++) {  in ff_v4l2_buffer_initialize()
524         avbuf->plane_info[i].bytesperline = V4L2_TYPE_IS_MULTIPLANAR(ctx->type) ?  in ff_v4l2_buffer_initialize()
529             avbuf->plane_info[i].length = avbuf->buf.m.planes[i].length;  in ff_v4l2_buffer_initialize()
530             avbuf->plane_info[i].mm_addr = mmap(NULL, avbuf->buf.m.planes[i].length,  in ff_v4l2_buffer_initialize()
532 …                                    buf_to_m2mctx(avbuf)->fd, avbuf->buf.m.planes[i].m.mem_offset);  in ff_v4l2_buffer_initialize()
534             avbuf->plane_info[i].length = avbuf->buf.length;  in ff_v4l2_buffer_initialize()
535             avbuf->plane_info[i].mm_addr = mmap(NULL, avbuf->buf.length,  in ff_v4l2_buffer_initialize()
537                                           buf_to_m2mctx(avbuf)->fd, avbuf->buf.m.offset);  in ff_v4l2_buffer_initialize()
540         if (avbuf->plane_info[i].mm_addr == MAP_FAILED)  in ff_v4l2_buffer_initialize()
544     avbuf->status = V4L2BUF_AVAILABLE;  in ff_v4l2_buffer_initialize()
550         avbuf->buf.m.planes = avbuf->planes;  in ff_v4l2_buffer_initialize()
551         avbuf->buf.length   = avbuf->num_planes;  in ff_v4l2_buffer_initialize()
554         avbuf->buf.bytesused = avbuf->planes[0].bytesused;  in ff_v4l2_buffer_initialize()
555         avbuf->buf.length    = avbuf->planes[0].length;  in ff_v4l2_buffer_initialize()
558     return ff_v4l2_buffer_enqueue(avbuf);  in ff_v4l2_buffer_initialize()
561 int ff_v4l2_buffer_enqueue(V4L2Buffer* avbuf)  in ff_v4l2_buffer_enqueue()  argument
565     avbuf->buf.flags = avbuf->flags;  in ff_v4l2_buffer_enqueue()
567     ret = ioctl(buf_to_m2mctx(avbuf)->fd, VIDIOC_QBUF, &avbuf->buf);  in ff_v4l2_buffer_enqueue()
571     avbuf->status = V4L2BUF_IN_DRIVER;  in ff_v4l2_buffer_enqueue()